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CN204033619U - Pant-type wearable article - Google Patents

Pant-type wearable article Download PDF

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Publication number
CN204033619U
CN204033619U CN201420348409.8U CN201420348409U CN204033619U CN 204033619 U CN204033619 U CN 204033619U CN 201420348409 U CN201420348409 U CN 201420348409U CN 204033619 U CN204033619 U CN 204033619U
Authority
CN
China
Prior art keywords
pant
encasing
outsourcing
edge
involution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201420348409.8U
Other languages
Chinese (zh)
Inventor
恩田蓝子
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
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Filing date
Publication date
Application filed by Kao Corp filed Critical Kao Corp
Application granted granted Critical
Publication of CN204033619U publication Critical patent/CN204033619U/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1648—Laser beams characterised by the way of heating the interface radiating the edges of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B29C65/1661—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined scanning repeatedly, e.g. quasi-simultaneous laser welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1696—Laser beams making use of masks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/747—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using other than mechanical means
    • B29C65/7473—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using other than mechanical means using radiation, e.g. laser, for simultaneously welding and severing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • B29C66/7294—Non woven mats, e.g. felt
    • B29C66/72941—Non woven mats, e.g. felt coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83431—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts
    • B29C66/83433—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts the contact angle between said rollers, cylinders or drums and said bands or belts being a non-zero angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83431—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts
    • B29C66/83435—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts said rollers, cylinders or drums being hollow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
    • B29C65/1619—Mid infrared radiation [MIR], e.g. by CO or CO2 lasers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/137—Beaded-edge joints or bead seals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/4871—Underwear
    • B29L2031/4878—Diapers, napkins

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Textile Engineering (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

Pant-type wearable article of the present utility model (1), form front portion (F) and rear body section (R) at least one encasing (3) two sheets (31,32) between, engaged by multiple outsourcing junction surfaces (33) of disperseing at longitudinal direction (X) and the width (Y) of dress article, between longitudinally adjacent outsourcing junction surface (33), be configured with elastomeric element (5,6).At least one in side seal portion (4), alternately has at the long side direction (X ') of side seal portion (4): the involution edge (41) that the weld portion (40) that the edge (3F) of the encasing of front portion (F) is extended by the long side direction in side seal portion with the edge (3R) of the encasing of rear body section combines; With the non-involution portion (42) that the edge of the edge of the encasing of front portion and the encasing of rear body section does not combine, at least one of the edge (3F ', 3R ') mutually do not combined of non-involution portion (42) is formed at outsourcing junction surface (33).

Description

Pant-type wearable article
Technical field
This utility model relates to the Pant-type wearable article with side seal portion.
Background technology
As existing Pant-type wearable article, there will be a known a kind of Breeches type disposable diaper, it has the encasing of the outer surface of absorbent main body and formation dress article, and the edge, both sides of the edge, both sides of the encasing of front portion and the encasing of rear body section engages formation a pair side seal portion.
At present, in the manufacturing process of the absorbent commodity such as disposable diaper, sanitary napkin, overlapping sheet joint each other widely uses heat roller device, and usually, side seal portion uses heat roller device to be formed.In addition, as other juncture, there will be a known the method using laser to carry out welding.As other juncture, there will be a known the method (such as, Japanese Unexamined Patent Publication 2006-82556 publication) using ultrasonic fusing and the method (such as, JP 2010-188629 publication) using laser.
Breeches type disposable diaper is usually by following operation manufacture.Namely, as the diaper continuum that symbol in Fig. 7 10 represents, manufacture the diaper continuum of multiple diaper in the upper continuous print structure of a direction (throughput direction), formed in the side seal portion of this diaper continuum after the encasing of overlapped front portion side and the encasing of rear body section side engaged by engaging mechanisms such as heat roller devices by predetermined position, cut this junction surface by cutting mechanisms such as cutting machines, the operation thus through being cut into diaper one by one manufactures.The existing Breeches type disposable diaper (the cutting edge at the above-mentioned junction surface produced by above-mentioned cutter unit cutting) of such manufacture, when diaper is worn, the left and right sides edge of front portion and the left and right sides edge overlap of rear body section are the shape of herringbone (palm shape), give prominence to from diaper outer surface.
Summary of the invention
This utility model relates to a kind of Pant-type wearable article, it has the encasing of the outer surface forming dress article, the edge, both sides of the edge, both sides of the encasing of front portion and the encasing of rear body section engages, and forms a pair side seal portion, waist opening portion and a pair leg opening part.The encasing of at least one in front portion and rear body section, between two sheets forming this encasing, the multiple outsourcing junction surfaces disperseed by longitudinal direction and the width at dress article engage.At least one in above-mentioned side seal portion, alternately has at the long side direction in this side seal portion: the involution edge that the weld portion that the edge of the edge of the encasing of front portion and the encasing of rear body section is extended by the long side direction in this side seal portion engages; With the non-involution portion that the edge of the edge of the encasing of front portion and the encasing of rear body section does not combine.In above-mentioned non-involution portion, at least one becoming mutually the edge of disengaged encasing of front portion and rear body section, is formed at above-mentioned outsourcing junction surface.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the Breeches type disposable diaper of the embodiment schematically shown as Pant-type wearable article of the present utility model.
Fig. 2 is the sectional view in the I-I line cross section schematically showing Fig. 1.
The plane graph that Fig. 3 is the expansion and elongation state that schematically show the diaper shown in Fig. 1.
Fig. 4 (a) is for representing the pattern side view of the sidepiece of a side of the diaper shown in Fig. 1, the II-II ray mode sectional view that Fig. 4 (b) is Fig. 4 (a).
Fig. 5 is for expanding the expansion side view represented by the part in the diaper shown in Fig. 1 side seal portion.
Fig. 6 be represent the side seal portion of the diaper shown in Fig. 1 and its near, orthogonal with the direction that this side seal portion extends and pass through the sectional view in the cross section of involution edge.
Fig. 7 is for schematically showing the axonometric chart of the manufacturing process of the diaper continuum in the manufacture of the diaper shown in Fig. 1.
Fig. 8 represents the laser type engagement device preferably used in the manufacture of Pant-type wearable article of the present utility model and the axonometric chart using its appearance fused by diaper continuum.
Fig. 9 (a) ~ (c) forms the key diagram of the appearance in side seal portion (involution edge) while being respectively and laser type engagement device cutting diaper continuum (banded encasing) of use shown in Fig. 7 being described.
Figure 10 is for illustrating the key diagram representing and form the appearance in the non-involution portion in side seal portion while the laser type engagement device shown in use Fig. 7 cuts diaper continuum (banded encasing).
Figure 11 is the axonometric chart of the Breeches type disposable diaper of other the embodiment schematically representing Pant-type wearable article of the present utility model.
Detailed description of the invention
In recent years, for Breeches type disposable diaper, usually wish, with underwear, there is same outward appearance.But, Breeches type disposable diaper has the side seal portion that underwear does not have usually, existing side seal portion is more outstanding and be doozy in appearance at diaper to diaper foreign side than periphery, therefore present situation be exactly hardly Breeches type disposable diaper with underwear, there is same outward appearance.
In addition, when usually disposable diaper being taken off from the health of wearer, in side seal portion, this diaper is torn as front portion and rear body section.Diaper use after replacing time, in order to promptly diaper be taken off from health, side seal quality award from the ministry choosing can easily tear.Tear resistance about side seal portion, such as record in utility model registration No. 3090821 description, the side edge part of front portion and rear body section is engaged by the banded junction surface of the width with about 1 ~ 2cm each other, and with the lateral edges parallel at the junction surface of band shape form the eyelet of dotted line shape, record in Japanese Kohyo 8-511709 publication, form the atenuator region that can destroy with dotted line at the position laterally left from side seal portion to diaper.
But, in the technology of utility model registration No. 3090821 description, reduce the width in side seal portion, be difficult to the outward appearance becoming picture underwear, in Japanese Kohyo 8-511709 publication, the method for atenuator region is set at the position different from side seal portion, is also difficult to form the outward appearance as underwear, and cause manufacturing process complicated, manufacturing cost increase etc.In addition, side seal quality award from the ministry is selected in not hard during skin contact.
And, the applicant's motion has following technology: will form two sheets of the encasing of Breeches type disposable diaper, partly engaged by the multiple junction surfaces being formed as loose point-like, and with elongation state configuration elastomeric element between the junction surface that the longitudinal direction of diaper is adjacent, thus by the contraction of elastomeric element, these two sheets each on form soft gauffer.(Unexamined Patent 2009-160348 publication).
Therefore, this utility model relates to the Pant-type wearable article with heat-sealing portion and its manufacture method, and this heat-sealing portion is the little and side seal portion of softness of the width given prominence to from the outer surface of article, and has practical sufficient bond strength, tear resistance also excellent.
This utility model provides a kind of Pant-type wearable article, it has the encasing of the outer surface forming dress article, the edge, both sides of the edge, both sides of the encasing of front portion and the encasing of rear body section engages formation a pair side seal portion, waist opening portion and a pair leg opening part, wherein, the encasing of at least one in front portion and rear body section, form the multiple outsourcing junction surfaces disperseed by longitudinal direction and the width at dress article between two sheets of this encasing to engage, the at least one in above-mentioned side seal portion, alternately have at the long side direction in this side seal portion: the involution edge that the weld portion that the edge of the edge of the encasing of front portion and the encasing of rear body section is extended by the long side direction in this side seal portion engages, with the non-involution portion that the edge of the edge of the encasing of front portion and the encasing of rear body section does not combine, the at least one of the edge of the encasing mutually do not engaged of the front portion in above-mentioned non-involution portion and rear body section is formed at above-mentioned outsourcing junction surface.
Pant-type wearable article of the present utility model has heat-sealing portion, and this heat-sealing portion is the little and side seal portion of softness of the width given prominence to from the outer surface of article, has practical sufficient bond strength, tear resistance also excellent.
According to Pant-type wearable article of the present utility model, form the involution edge in side seal portion and non-involution portion by same operation, above-mentioned Pant-type wearable article can be manufactured efficiently.
Below, based on preferred embodiment with reference to accompanying drawing, this utility model being described.As the Breeches type disposable diaper 1 of an embodiment of Pant-type wearable article of the present utility model, as shown in FIG. 1 to 3, there is the encasing 3 of the outer surface of absorbent main body 2 and formation dress article, edge, left and right sides B1, B1 of edge, left and right sides A1, A1 of longitudinal X along encasing 3 of front portion F (veutro portion 1A) and the longitudinal X along encasing 3 of rear body section R (drosal part 1B) engages, formed a pair side seal portion 4,4, waist opening portion 8 and a pair leg opening part 9,9.Encasing 3 is positioned at the non-skin abutment face side of absorbent main body 2, fixes this absorbent main body 2.
Diaper 1, in the plan view of elongation state, has longitudinal X of the fore-and-aft direction being equivalent to wearer and the horizontal Y orthogonal with it in expansion as shown in Figure 3.Diaper 1 can be divided into the crotch bottom 1C being configured in crotch bottom when wearing and the veutro portion 1A be positioned at before and after its longitudinal X and drosal part 1B.The encasing 3 of crotch bottom 1C is at the notch part being formed with leg opening part 9,9 formation along the edge, the left and right sides of its longitudinal X.In addition, as shown in Figure 4, diaper 1 can with on longitudinal X by the imagining center line CL of diaper 1 liang of decile for border, be divided into front portion F and rear body section R.
And, in this description, towards the face of the skin side of wearer when skin abutment face refers to wearing of Pant-type wearable article or its component parts (such as absorbent main body), towards the face of the opposition side (side of wearing the clothes) of the skin side of wearer when non-skin abutment face refers to wearing of Pant-type wearable article or its component parts.In diaper 1, longitudinal X with along disposable diaper or the direction (long side direction) as the long limit of the absorbent main body 2 of its component parts consistent, horizontal Y with along disposable diaper or the width as the absorbent main body 2 of its component parts consistent.
As shown in Figure 3, absorbent main body 2 has the shape of the relatively long lengthwise in a direction (longitudinal X), there is the absorber (not shown) of liquid retentivity forming the positive dough sheet (not shown) of skin abutment face, the back sheet (not shown) forming non-skin abutment face and configure between these two sheets, this absorber have with long shape on longitudinal X equidirectional.Absorbent main body 2, makes its long side direction with expansion and longitudinal X of the diaper 1 of elongation state is consistent, is bonded on the central part of encasing 3 by known juncture (bonding agent etc.).Herein, to launch and elongation state refers to the side seal portion and make diaper become deployed condition of tearing, the elastomeric element of each several part is extended and the diaper of this deployed condition is expanded to the state of design size (measure-alike with when expanding into plane under all states affected getting rid of elastomeric element).
As shown in Figures 2 and 3, encasing 3 comprises: the outer-skin sheet 31 forming the outer surface (the non-skin abutment face of encasing 3) of diaper 1; Be configured in the inner surface side of this outer-skin sheet 31, form the inner layer piece 32 of the inner surface (skin abutment face of encasing 3) of diaper 1; The elastomeric element 5,6,7 of multi-filament shape between two sheets 31,32 or band shape is fixed by bonding agent.The joint such as bonding agent or heat-sealing is passed through in predetermined portion between two sheets 31,32.
Encasing 3 (outer-skin sheet 31, inner layer piece 32) comprises resin material, with this resin material for main component is formed.As an example of encasing 3 (outer-skin sheet 31, inner layer piece 32), the synthetic resin comprising the heat molten types such as polyethylene, polyethylene terephthalate, polypropylene as resin material can be enumerated, the material be made up of the lamination sheets etc. of non-woven fabrics, film, non-woven fabrics and film.Hot-wind nonwoven cloth, hot-rolling non-woven fabrics, spun-laced nonwoven fabric, spun-bonded non-woven fabrics, melt spraying non-woven fabrics etc. can be enumerated as non-woven fabrics.
As shown in Figure 3, outer-skin sheet 31 has than being clamped by outer-skin sheet 31 and inner layer piece 32 and the length that extends out further of the position fixing waist elastic members 5,24, and the elongated area that the ratio inner layer piece 32 of outer-skin sheet 31 extends out folds into absorbent main body 2 side.
The encasing 3 of the 1A side, veutro portion of present embodiment and the encasing 3 of drosal part 1B side, as shown in Fig. 4 (a) He Fig. 4 (b), engage off and on longitudinal X and width Y of diaper all respectively between outer-skin sheet 31 and inner layer piece 32 and form multiple outsourcing junction surface 33, between the outsourcing junction surface 33,33 that longitudinal X is adjacent, being configured with elastomeric element 5,6.
Above-mentioned elastomeric element 5 is waist elastic members 5 of the circumference formation waist elasticity pars contractilis in waist opening portion 8, as shown in Figure 3, veutro portion 1A and drosal part 1B each on, between the end being configured in longitudinal X of absorbent main body 2 and all acies in waist opening portion 8.Above-mentioned elastomeric element 6 is at the waist elastomeric element 6 more forming waist elastic telescopic portion than waist elasticity pars contractilis by 1C side, crotch bottom, as shown in Figure 3, veutro portion 1A and drosal part 1B each on, be configured in the position of the 1C side, Geng Kaodang bottom, end of the longitudinal X than absorbent main body 2.Above-mentioned elastomeric element 7 is the leg elastic members 7 forming leg elastic pars contractilis at the leg being configured at lower limb and enclosing (thigh circumference).
In the side seal portion 4,4 that the both ends of the transverse direction of the diaper of waist elastic members 5 are fixed on left and right or the end winding support portion 43,43 that formed in its vicinity.The end of the waist elastic members 5 when being fixed on end winding support portion 43,43 such as can be fixed at least one in outer-skin sheet 31 and inner layer piece 32 by known junctures such as bonding agents.The end of the waist elastic members 5 when being fixed on side seal portion 4,4 is such as fixed on by the constraint etc. of the resin of melting and solidification in the weld portion 40 of involution edge described later.The end of waist elastic members 5 also can be fixed on two positions in side seal portion 4 and end winding support portion 43.
The end in the outside of the horizontal Y of the diaper of waist elastomeric element 6, the side seal portion 4 being fixed on left and right in the same manner as waist elastic members 5 or the end winding support portion 43 formed in its vicinity.On the other hand, the end of the inner side of the horizontal Y of the diaper of waist elastomeric element 6, is fixed on the inner side fixed part 45 (with reference to Fig. 1) formed near the lateral margin of absorbent main body 5.Be fixed on the end of all elastomeric elements 6 of waist of inner side fixed part 45, such as, can be fixed at least one of outer-skin sheet 31 and inner layer piece 32 by the known juncture of bonding agent etc.
The waist elastic members 5 of present embodiment, elastic telescopic portion 44 is formed between the respective pair of outside fixed part 43,43 of veutro portion A and drosal part B, but between pair of outside fixed part 43,43, by between the outsourcing junction surface 33 that longitudinal X is adjacent, be not fixed on outer-skin sheet 31 and inner layer piece 32 any one on.
In addition, waist elastomeric element 6, elastic extension 44 is formed between the inner side fixed part 45 and outside fixed part 43 of veutro portion A and the drosal part B left and right sides separately, but between inner side fixed part 45 and outside fixed part 43, by between the outsourcing junction surface 33 that longitudinal X is adjacent, be not fixed on outer-skin sheet 31 and inner layer piece 32 any one on.
Waist elastic members 5 and waist elastomeric element 6 are respectively along the horizontal Y configuration of diaper.Outsourcing junction surface 33 is formed engaging between outer-skin sheet 31 and inner layer piece 32 off and on by known juncture.As juncture, can be not particularly limited to adopt the various methods such as bonding agent, heat-sealing, ultrasonic sealing function, high frequency involution, but the method for the thickness of preferred compressed encasing, such as, after preferred adhesive applicating pressing compression or heat-sealing.
Fig. 4 represents an example of the preferred Pareto diagram at outsourcing junction surface 33.In the Pareto diagram shown in Fig. 4, outsourcing junction surface 33 is formed as on longitudinal X and width Y of diaper 1, forming row respectively, between the adjacent outsourcing junction surface 33 of the row L of longitudinal extension, be configured with elastomeric element 5,6.And (do not apply the state of external force) in its natural state, elastomeric element 5,6 shrinks, and outer-skin sheet 31 and inner layer piece 32 form the multiple pleats 46 extended continuously throughout each multiple elastomeric element respectively.
Fig. 5 is the expansion side view of the part in the side seal portion 4 expanded in the diaper 1 representing present embodiment.And, near the side seal portion representing the right side of the diaper 1 of Fig. 1 in figures 4 and 5, the diaper 1 of present embodiment relative to laterally by symmetrical for the plane of diaper 1 liang of decile, the side seal portion in left side also has same structure.
The side seal portion 4 of present embodiment, as shown in Figure 5, alternately have at the long side direction X ' in side seal portion 4: the edge 3F of the encasing 3 of front portion F and the involution edge 41 that the edge 3R of the encasing 3 of rear body section R is combined by the weld portion 40 that the long side direction in side seal portion extends; With the non-involution portion 42 that the edge 3F ' of the encasing 3 of front portion F does not combine with the edge 3R ' of the encasing 3 of rear body section R.The long side direction X ' in side seal portion 4 is generally the direction of the longitudinal X along diaper 1.At this, alternately have and refer to, also comprise the situation that involution edge 41 (weld portion 40) and non-involution portion 42 long side direction in side seal portion respectively has.The side seal portion 4 of the diaper 1 of present embodiment has multiple involution edges 41 (weld portion 40) and non-involution portion 42 respectively, specifically, there is multiple involution edge 41 (weld portion 40) between non-involution portion 42 and the non-involution portion 42 between involution edge 41 respectively.
In addition, as shown in Figure 5, the front portion F in each non-involution portion 42 in side seal portion 4 and mutual uncombined edge 3F ', the 3R ' of rear body section R is formed at outsourcing junction surface 33.Namely, in the non-involution portion 42 of present embodiment, the edge 3F ' of the encasing 3 of front portion F side is formed on the outsourcing junction surface 33F of front portion F formation, and the edge 3R ' of the encasing 3 of rear body section R side is being formed on the outsourcing junction surface 33R formed at rear body section R.
The involution edge 41 in side seal portion 4, as shown in Figure 6, in the cross section orthogonal with the direction that the side seal portion 4 when wearing extends, the outer rim 4a be made up of weld portion 40 has the shape of side's depression in dress article.In addition, the weld portion 40 of involution edge 41, on same cross section, the width W 4 being exposed to the outer surface of diaper is narrow, and this width W 4 is preferably below 5mm, is more preferably below 1mm, more preferably below 0.5mm.And be preferably more than 0.1mm.The width W 4 being exposed to the outer surface of diaper is, under uncharge state, observed the cross section of three positions leaving long side direction in the side seal portion 4 of a diaper with the multiplying power of 50 ~ 200 times by microscope (microscope) (KEYENCE Inc. VHX-1000) etc., obtain the thickness in each cross section respectively, obtain the meansigma methods of the thickness of three positions of mensuration.
In addition, as Fig. 9 (c), shown in Fig. 2, under the flat state that veutro portion 1A (front portion F) and drosal part 1B (rear body section R) is overlapping, in the cross section in the direction (direction identical with the horizontal Y of diaper 1) that the direction extended with side seal portion 4 is orthogonal, the side seal portion 4 (involution edge 41) produced by above-mentioned cutting, the outer rim 4a be made up of the outer rim of weld portion 40 forms the arcuation that side is convex in diaper 1, and form by the position of side in this diaper 1 four sheets 31 forming this encasing 3 comprising outer rim 4a and Bi Qi, 32 weld portion 40 each other, it is large that this weld portion 40 compares width in central part and both ends (upper end and the bottom) of the thickness direction (above-below direction of Fig. 9 (c)) of this encasing 3.More particularly, weld portion 40, in the cross sectional view of the horizontal Y (direction orthogonal with the cut direction of carrying out with laser) along diaper 1, go the width of weld portion 40 to broaden gradually to the central part on thickness direction, form so-called crescent or first quarter moon shape (weld portion 40 shown in Fig. 9 (c) is crescent).Even if involution edge 41 also preferably has such shape under wearing effect.
Side seal portion 4 (involution edge 41) of the present utility model is formed at the side edge part of encasing as previously mentioned.That is, side seal portion 4 is positioned at the most external of the width of diaper.When carrying out in prior art sealing etc., usually involution carried out in continuous print two positions and manufacture cutting between these two positions, therefore leaving a part of encasing in the outside of involution portion (weld portion).And a part of encasing stayed is there is not in side seal portion of the present utility model, this is also one of feature of the present invention.The side seal portion 4 (involution edge 41) of diaper 1 of the present utility model, the position that ratio weld portion 40 in the inward-outward direction P (with reference to Fig. 2) of the side of the skin close to wearer from dress article towards the side of the skin away from wearer is more outward, does not have encasing formation fiber to leave the part of fiber shape.
A part for encasing is there is not than weld portion 40 position in the outer part, even if thus when being through the compressing diapers such as the clothes outside diaper, bring discomfort can not to the skin of wearer, in addition, when wearing, the garment side of diaper does not have discomfort yet yet.And then outward appearance when wearing also presents the outward appearance of underwear, therefore preferably.
Side seal portion 4, due to the weld portion 40 that the formation material molten that there is sheet is solidified to form, harder than other positions of diaper 1, skin sense of touch is poor, it is the position of the reason becoming the wearing feeling reducing diaper 1, when but weld portion 40 is formed as crescent or first quarter moon shape in the cross sectional view of the width of diaper 1, compared with being formed as the situation of rectangular shape like that with the weld portion in existing side seal portion in this cross sectional view, the ratio of the weld portion 40 that the bight 3S of the side edge part of the encasing 3 in formation side seal portion 4 exists reduces, the flexibility that originally had of bight 3S thus, skin sense of touch etc. is difficult to damaged, therefore the wearing feeling of diaper is improved compared with existing product.On the other hand, as the position of the heat seal strength in side seal portion 4 being given to very large impact, there is the weld portion 40 of q.s in the central part (central part of the part that the bight 3S of the one side side of the encasing 3 and 3S of another side side clips) due to the thickness direction of the side edge part in encasing 3, so side seal portion 4 has practical sufficient heat seal strength, diaper 1 is difficult to when wearing the unfavorable conditions such as side seal portion 4 is destroyed occur.
Diaper 1 according to the present embodiment, the long side direction X ' in side seal portion 4 is alternately formed involution edge 41 and non-involution portion 42, therefore diaper use after replacing time etc., easily side seal portion can be torn as front portion and rear body section, and can not sufficient sealing strength in the practicality of by mistake avulsed degree when can guarantee that diaper is worn by involution edge 41.
And, because disengaged edge 3F ', the 3R ' in non-involution portion 42 are formed at outsourcing junction surface 33F, 33R, therefore this edge 3F ' and this edge 3R ' each in, be difficult to by between sheet 31,32 peel off.That is, respectively at edge 3F ', 3R ', the juncture by forming outsourcing junction surface 33 between two sheets engages.Therefore, give wear object wear diaper time, outer-skin sheet 31 or inner layer piece 32 that stripping is less likely to occur hang other objects, and outer-skin sheet 31 or inner layer piece 32 open, the unfavorable condition such as damaged, and outer-skin sheet 31 grade being also less likely to occur to peel off in dress hangs other objects, outer-skin sheet 31 is opened and such unfavorable condition is by mistake torn in side seal portion 4.
From improving the tear resistance of side seal portion 4, and guarantee the peel strength of the necessity in side seal portion 4 and guarantee that the viewpoint of the length forming non-involution portion 42 is set out, the length L41 of the involution edge 41 between non-involution portion 42 is preferably more than 0.5mm, be more preferably more than 1mm, and be preferably below 40mm, be more preferably below 30mm.In addition, the length L42 at outsourcing junction surface 33 (or non-involution portion 42) is preferably more than 0.5mm, is more preferably more than 1mm, and is preferably below 20mm, is more preferably below 15mm, is preferably 0.5 ~ 20mm, is more preferably 1 ~ 15mm.In addition, the ratio (L41:L42) of the length L41 of involution edge 41 and the length L42 at outsourcing junction surface 33 (or non-involution portion 42) is preferably 1:20 ~ 80:1, is more preferably 1:10 ~ 30:1.
In addition, the number at the outsourcing junction surface 33 (non-involution portion 42) that a side seal portion 4 is formed is preferably more than 1, be more preferably more than 2, in addition, preferably the number of the length 10mm of the long side direction in every side seal portion is less than 10, be more preferably less than 5, preferably the number of the length 10mm of the long side direction in every side seal portion is 1 ~ 10, is more preferably 2 ~ 5.
In addition, the side seal portion 4 of present embodiment, the width W 4 due to weld portion 40 is little, and side seal portion 4 has the advantages such as soft, on the other hand, under the wearing effect or naturalness (contraction state) of diaper 1, the position externally going out side seal portion 4 is difficult to.When the visual visuality of diaper 4 is low, such as, after diaper 1 uses, the protector (such as mother) of infant is difficult to see side seal portion 4 when the infant as wearer takes off diaper 1, likely can cause the removal operation difficulty of diaper 1.
About this point, because the diaper 1 of present embodiment has non-involution portion 42 in side seal portion 4, so can not damage the flexibility in side seal portion and good skin sense of touch, the visual visuality in side seal portion 4 is also very excellent.In addition, also can be improved the aeration of the sidepiece of diaper 1 by non-involution portion 42, can become and be not easy sultry diaper.
In addition, the diaper 1 of present embodiment, as of outsourcing junction surface 33 forming non-involution portion 42 in side seal portion 4, as shown in Figure 4, there is outsourcing junction surface, the upper end 33u that the opening circumference 81 in waist opening portion is formed, be formed with the open non-involution portion 42u in this opening circumference 81 side at this outsourcing junction surface, upper end 33u.Therefore, the diaper 1 of present embodiment further increases the visuality in side seal portion 4.In addition, what improve when to tear side seal portion 4 from side, waist opening portion is tear resistance.
When formation has outsourcing junction surface, the upper end 33u of so non-involution portion 42u, the length of above-mentioned upper end outsourcing junction surface 33u on the long side direction X ' in side seal portion, be longer than other the outsourcing junction surface 33 being positioned at leg opening part 9 side in contrast, this point is preferred from the formative and visual viewpoint improving the open non-involution portion 42u in upper end further.In the meansigma methods that this other length at outsourcing junction surface 33 said is the length at the outsourcing junction surface 33 be positioned in same side seal portion, as present embodiment, when having the open non-involution portion 33d in lower end, removing this outsourcing junction surface 33d and calculating.Outsourcing junction surface, upper end 33u, along the length of the long side direction in side seal portion, is preferably more than 1.1 times of other outsourcing junction surface 33, is more preferably more than 1.2 times, and is preferably less than 20 times, is more preferably less than 10 times.
In addition, the diaper 1 of present embodiment, as the another one at outsourcing junction surface 33 forming non-involution portion 42 in side seal portion 4, as shown in Figure 4, there is outsourcing junction surface, the lower end 33d formed on the opening circumference 91 of leg opening part, be also formed with the open non-involution portion 42u in this opening circumference 91 side at this outsourcing junction surface, upper end 33d.Therefore, the diaper 1 of present embodiment further increases the visuality in side seal portion 4.Further, what improve when being torn in side seal portion 4 from leg opening part side is tear resistance.
When formation has outsourcing junction surface, the lower end 33d of so non-involution portion 42d, the length of this outsourcing junction surface, lower end 33d on the long side direction X ' in side seal portion, be longer than other the outsourcing junction surface 33 being positioned at side, waist opening portion 8 in contrast, the viewpoint that the formative of the non-involution portion 42d that this point is open from lower end and visuality improve further is preferred.Other the length at outsourcing junction surface 33 said is meansigma methodss of the length at the outsourcing junction surface 33 be positioned in same side seal portion herein, as present embodiment, when having the open non-involution portion 33u in upper end, removing this outsourcing junction surface 33u and calculating.Outsourcing junction surface, lower end 33d, along the length of the long side direction in side seal portion, is preferably more than 1.1 times of other outsourcing junction surface 33, is more preferably more than 1.2 times, and is preferably less than 20 times, is more preferably less than 10 times.
Above-mentioned diaper 1, such as can by the manufacture method manufacture of following explanation.
The manufacture method of diaper 1, comprising: make the formation predetermined position of the side seal portion 10c in the continuous print encasing 3 of the encasing overlap of the encasing of front portion side and rear body section side become the overlap pressurization operation of pressurized state; To the formation predetermined position irradiating laser in side seal portion being in pressurized state, encasing described in continuous print 3 is cut, and make the cutting edge of the encasing of the laminated arrangement produced by this cutting fused with one another and form the side seal portion formation process in side seal portion 4.In addition, before overlapping pressurization operation, there is the main body fixed work order in the upper attaching absorbent main body 2 of the encasing 3 (outer-skin sheet 31, inner layer piece 32) of band shape.
More particularly, in the manufacture method of diaper 1, as shown in Figure 7, in above-mentioned overlap pressurization operation, by the encasing 3 (outer-skin sheet 31, inner layer piece 32) of band shape is folded in its width direction, make the front portion side of the encasing 3 of the band shape being fixed with absorbent main body 2 and rear body section stress to fold, manufacture " the diaper continuum 10 that the predecessor not forming the Breeches type disposable diaper in side seal portion connects in one direction " thus.And, in above-mentioned side seal portion formation process, as shown in Figure 8, by the irradiation of laser 30, the banded encasing 3 of this diaper continuum 10 being split (fusing) is one by one, simultaneously by fused with one another for the cutting edge of the many pieces of encasing 3 (outer-skin sheet 31, inner layer piece 32) of laminated arrangement produced by this segmentation, manufacture the Breeches type disposable diaper 1 having the encasing 3 in a pair side seal portion 4,4 continuously.
In more detail, first, as shown in Figure 7, between outer-skin sheet 31 in the band shape from the continuous supply of blank volume (not shown) and the inner layer piece 32 from the band shape of the continuous supply of blank volume (not shown), configure with the elongation state extending the percentage elongation for specifying the leg elastic members 7 that many form the waist elastic members 5 of waist gauffers, the waist portion elastomeric element 6 forming waist gauffer and formation leg creases respectively.Now, leg elastic members 7 by the throughput direction with sheet orthogonally reciprocating known shake guiding piece (not shown) form the lower limb specified and enclose pattern and configure.In addition, before by the outer-skin sheet 31 of band shape and banded inner layer piece 32 overlap, in the outer-skin sheet 31 and banded inner layer piece 32 of band shape, the predetermined portion in the relative face of any one or both in two sheets 31,32 is by adhesive applicating machine (not shown) coating heat molten type bonding agent.In addition, the elastomeric elements such as waist elastic members 5, waist portion elastomeric element 6 are to ride (the formation predetermined portions in side seal portion 4 of the divided part by the irradiation of laser of two sheets 31,32, the cutting predetermined portions that in Fig. 9, symbol 10C represents) mode when configuring under elongation state, in order to avoid significantly shrinking or the unfavorable condition such as to come off of this elastomeric element of this elastomeric element after above-mentioned cutting, preferably this part and near adhesive-applying.The end winding support portion 43,43 clipping the both sides in side seal portion 4 in diaper 1 by the formation predetermined portions in side seal portion 4 and the outer-skin sheet 31 near it and between inner layer piece 32 adhesive-applying formed.In addition, inner side fixed part 45 by configuration absorbent main body 5 position both sides each outer-skin sheet 31 and inner layer piece 32 before adhesive-applying formed.In waist elastic members 5 and waist portion elastomeric element 6, before they being configured between two sheets 31,32, also can apply heat molten type bonding agent off and on by adhesive applicating machine (not shown).
And, as shown in Figure 7, between a pair pressure holding roller 11,11, send into and accompany the outer-skin sheet 31 of band shape of waist elastic members 5, waist portion elastomeric element 6 and leg elastic members 7 and the inner layer piece 32 of band shape with elongation state and pressurize, be formed in the encasing 3 of the band shape being configured with multiple elastomeric element 5,6,7 between banded sheet 31,32 with elongation state thus.
In addition, in the formation process of this encasing 3, use the engaging mechanism such as convex roller 12 and the anvil roller 13 corresponding with it, between adjacent 2 waist portion elastomeric elements 6,6, form the multiple outsourcing junction surfaces 33 outer-skin sheet 31 of band shape and the inner layer piece 32 of band shape engaged.
Afterwards, as required, use elastomeric element pre-cutting mechanism (not shown), press many waist portion elastomeric elements 6 and Duo Gen leg elastic members 7 accordingly with the position of configuration absorbent main body 2 described later, be divided into multiple, to make not manifest contractile function.As above-mentioned elastomeric element pre-cutting mechanism, such as, can enumerate the elastomeric element cutting part etc. used in the manufacture method of the composite extensible member recorded in Japanese Unexamined Patent Publication 2002-253605 publication.
Then, as shown in Figure 7, the absorbent main body 2 manufactured by other operations applies the bonding agents such as hot-melt adhesive in advance, by this absorbent main body 2 90-degree rotation, be supplied to off and on form banded encasing 3 inner layer piece 32 on and (main body fixed work order) fixed thereon.Then, as shown in Figure 7, be that the inner side of the annulus of ring-type forms leg hole LO ' being surrounded by leg elastic members 7 of encasing 3 of the band shape being configured with absorbent main body 2.This leg hole formation process, can use the method same with the method in the manufacture method of always this kind of product such as rotary knife cutter, laser cutting machine to implement.
Then, the encasing 3 of band shape is folded at its width (direction orthogonal with the throughput direction of encasing 3).More particularly, as shown in Figure 7, both sides 3a, 3a of the throughput direction of the encasing 3 along band shape are folded in the mode at the both ends covering the long side direction of absorbent main body 2, after the both ends of the long side direction of attaching absorbent main body 2, by encasing 3 with absorbent main body 2 together in its width doubling (overlapping overlapping step of pressurizeing in operation).So, diaper continuum 10 is obtained.
Then, as shown in Figure 8, use laser type engagement device 20 to form a pair side seal portion 4,4 (side seal portion formation process) to diaper continuum 10 irradiating laser so manufactured, manufacture the Breeches type disposable diaper 1 having the encasing 3 in a pair this side seal portion 4 continuously.
Laser type engagement device 20 is described, laser type engagement device 20, as shown in Figure 8, has: at the cylinder roller 23 of the hollow of arrow A direction rotary actuation; Be configured in the hollow bulb of cylinder roller 23, to formed cylinder roller 23 week face the laser head 35 of support unit 21 irradiating laser 30 of cylindrical shape (ring-type); There is the belt pressue device 26 of the press belt 24 (pressing component) of ring-type.
Laser type engagement device 20 has can increase and decrease the tension adjustment mechanism (not shown) that adjustment is wound around the tension force of the press belt 24 of the outer peripheral face (the week face of cylinder roller 23) of the support unit 21 of ring-type, by the adjustment of this tension force, utilize support unit 21 and press belt 24, can suitably adjust at the upper applied pressure of diaper continuum 10 (laminate).
Support unit 21 forms the week face (with the abutting part of machined object) of cylinder roller 23, is clipped fixing between the framework 22,22 of a pair ring-type at the both ends, rotating shaft direction of formation cylinder roller 23.The material that support unit 21 has thermostability by metal material or potteries etc. such as ferrum, aluminum, rustless steel, copper is formed.
Support unit 21 has can through the light transmissive portion 27 of laser.Support unit 21, as shown in Figure 8, has slot-shaped peristome 27 at thickness direction this support unit 21 through as light transmissive portion.Peristome 27 has rectangle present situation at plan view, its long side direction is the direction intersected with the throughput direction A of diaper continuum 10 (banded encasing 3), more particularly, the direction parallel with the axial length direction of the rotating shaft with cylinder roller 23 is consistent, is formed multiple with separating predetermined distance at the circumferencial direction of the support unit 21 of cylindrical shape.Support unit 21 is at peristome 27 through laser, and the part on the other hand beyond peristome 27 is not through laser.As the method forming peristome 27 on support unit 21, can enumerate: the assigned position of the support unit 21 1) formed at the single endless member of the identical length of the girth of the framework 22 with ring-type, run through by etching, punching, Laser Processing etc. the method that peristome 27 is set; 2) as support unit 21, replace single endless member, use the parts of multiple bending rectangular shape, above-mentioned multiple parts are configured in the method between a pair framework 22,22 in the compartment of terrain that the circumferencial direction of framework 22 separates regulation.
In laser type engagement device 20 (there is the manufacturing installation of the sheet fusion body of the involution edge of welding under the edge overlap condition of multiple), can be made up of the peristome 27 at the through support unit of thickness direction 21 (slot-shaped) by the light transmissive portion of laser, therefore the part (cut predetermined portions 10C) overlapping with peristome 27 of diaper continuum 10 (laminate) only abuts with press belt 24, and supported portion part 21 and press belt 24 (pressing component) are not clamped.Therefore strictly speaking, can not produce because two parts 21,24 clip produced plus-pressure at cutting predetermined portions 10C.But, the cutting predetermined portions 10C overlapping with peristome 27, even if itself is not clipped by two parts 21,24, but due near it, namely the part overlapping with (opening edge) near peristome 27 of diaper continuum 10 clipped by two parts 21,24, therefore do not move after laser pre-irradiation, the cutting edge thus produced by the cutting of being irradiated the diaper continuum 10 carried out by laser is not moved.That is, the cutting predetermined portions 10C (part overlapping with peristome 27 of laminate) of diaper continuum 10, for being subject to the part being clamped the plus-pressure constraint produced by two parts 21,24, is the part that this plus-pressure in fact affects.
Belt pressue device 26 has the press belt 24 (pressing component) of ring-type and is setting up 3 rollers 25a, 25b, 25c rotating under the state having this press belt 24.Roller 25a, 25b, 25c can be driven roller, also can be the driven voller with cylinder roller 23 linkage rotation.Press belt 24, above as rotary actuation using any one in roller 25a, 25b, 25c, or with cylinder roller 23 linkage rotation, and to rotate with the speed identical with cylinder roller 23 (support unit 21).Temperature is maintained the temperature range of regulation by support unit 21 and press belt 24 preferably by air cooling, water cooling etc.
The metal or resinous band that have and tolerate the thermostability adding the heat that man-hour produces can be used as press belt 24 (pressing component), such as, the parts that ferrum, aluminum, stainless steel and other metal materials are formed can be used.In addition, as press belt 24, usually use not to the parts of the permeability of the laser that machined object (banded encasing 3) irradiates, but also can use the material with this permeability.
As shown in Figure 8, at the hollow bulb of the cylinder roller 23 of hollow, be provided with towards formed this cylinder roller 23 week face the irradiation head 35 of support unit 21 irradiating laser 30.Irradiation head 35 is the electric scanner (being provided with the device of reflecting mirror on motor reel) that freely can scan laser 30, has: mechanism laser 30 being retreated in the direction parallel with the rotating shaft of cylinder roller 23, make the irradiation position (point of irradiation) of the diaper continuum 10 on laser 30 pairs of support units 21 in certain mechanism etc. of the mechanism of the circumferencial direction movement of cylinder roller 23 and the some footpath that makes laser 30 on the side face of cylinder roller 23.Laser radiation mechanism, by having such formation, can make the movement arbitrarily in the both direction in the circumferencial direction of cylinder roller 23 and the direction orthogonal with this circumferencial direction of the point of irradiation of laser 30.
As shown in Figure 8, diaper continuum 10 is by not shown guiding roller etc., under the state of tension force being applied with regulation, be directed to formed the cylinder roller 23 be driven in rotation along arrow A direction week face support unit 21 outer surface on, and be wound around on this support unit 21, by the rotation of this cylinder roller 23, circumferentially carry certain distance at it, left from this support unit 21 by not shown outlet roller and pressure holding roller etc. afterwards.So, by diaper continuum 10 with the tension force of regulation be wound around formed cylinder roller 23 week face support unit 21 on and be crimped on support unit 21 Shangdi by press belt 24 and carry, thus the part that clips of the supported portion part 21 of diaper continuum 10 and press belt 24 and its near, become the state from just pressurized (compression) in the thickness direction thereof before irradiated the cutting carried out by laser.Therefore, comprise situation of non-woven fabrics etc. at diaper continuum 10 under, can effectively compress this diaper continuum 10 further, result, when being cut to diaper continuum 10 irradiating laser in such compression, the cutting edge of multiple of this cutting part of formation (encasing 3) can be made more reliably fused with one another, improve the heat seal strength in side seal portion 4.
In embodiment shown in Fig. 8, continus convergence diaper continuum 10, and make one face 10a and the week forming cylinder roller 23 facial and have and can be abutted by the outer surface of the support unit 21 of the slot-shaped peristome 27 (light passage) of laser 30, to the diaper continuum 10 (the formation predetermined position in side seal portion 4) being become pressurized state by support unit 21 and press belt 24 (pressing component), from support unit 21 side via peristome 27 irradiating laser 30, cut diaper continuum 10 thus, make the cutting edge of multiple (encasing 3) in the above-mentioned pressurized state produced by this cutting fused with one another simultaneously, form side seal portion 4 (side seal portion formation process).
Fig. 9 and Figure 10 be illustrate use laser type engagement device 20 to cut diaper continuum 10 (banded laminate) while form the figure with the appearance in the side seal portion 4 in involution edge 41 and non-involution portion 42, Fig. 9 (a) schematically show the cutting predetermined position 10C (the forming predetermined position of involution edge 4) undertaken by laser 30 of diaper continuum 10 and its near.The cutting predetermined portions 10C of the diaper continuum 10 of illustrated appearance is the central authorities of the long side direction (throughput direction A) not configuring the region of absorbent main body 2 at diaper continuum 10.The open end in the waist opening portion 8 (with reference to Fig. 1) of such cutting predetermined portions 10C and be 8 Rotating fields parts of 8 sheet overlaps near it, the part beyond it is 4 Rotating fields parts of 4 sheet overlaps.
4 Rotating fields parts, as shown in Fig. 9 (a), comprise 2 sheets (lateral film 31 and inside piece 32) of formation 1 encasing 3 of veutro portion 1A and identical 2 sheets 31,32 of formation 1 encasing 3 of drosal part 1B, by this, 4 sheets are stacked forms.On the other hand, 8 Rotating fields parts, as previously mentioned, because when the manufacture of diaper continuum 10, both sides 3a, 3a of the encasing 3 of band shape folds (with reference to Fig. 4 and Fig. 7) in the mode covering the long side direction both ends of absorbent main body 2, there are 2 encasing 3 respectively at veutro portion 1A and drosal part 1B, and this 4 encasing 3,3 stacked, therefore result is that 8 sheets 31,32 are overlapping and form 8 Rotating fields parts.In addition, respectively in 4 Rotating fields parts and 8 Rotating fields parts, between overlapped sheet 31,32, the elastomeric element such as waist elastic members 5, waist portion elastomeric element 6 is sometimes configured with.Below, main explanation 4 Rotating fields parts, but being only not particularly limited, 8 Rotating fields parts are also formed in the same manner as 4 Rotating fields parts, form side seal portion 4.
In the cutting predetermined portions 10C of 4 Rotating fields of diaper continuum 10, sheet (inner layer piece 32) beyond the outer-skin sheet 31 forming a face 10a (with the bearing surface of support unit 21) of diaper continuum 10 and the sheet forming a face 10a, any one or both are absorbing laser 30 and the sheet that generates heat.In the illustrated case, 4 sheets 31,32 forming cutting predetermined position 10C are all the sheet (non-woven fabrics) that absorbing laser 30 generates heat.In addition, cutting predetermined portions 10C and the overlapped outer-skin sheet 31 near it and between inner layer piece 32 two sheets, at laser 30 pre-irradiation, also can be engaged by bonding agent, also can not engage completely.
Diaper continuum 10, as shown in Fig. 9 (b), be connected to support unit 21 with a face 10a and cut the mode that predetermined portions 10C (the formation predetermined portions in side seal portion 4) is positioned at slot-shaped peristome 27, be directed on the support unit 21 that rotates in arrow A direction, and press belt 24 (pressing component) presses another side 10b, diaper continuum 10 is transferred in arrow A direction while in thickness direction pressurized (compression) thus.On the other hand, the part at the formation outsourcing junction surface 33 of diaper continuum 10, as shown in Figure 10, compared with the part not having outsourcing junction surface 33 of cutting predetermined portions 10C, weak in the degree of thickness direction pressurized (compression).
And, in such conveying and the cutting predetermined portions 10C of pressurized state, from support unit 21 side via peristome 27 irradiating laser 30.As previously mentioned, the point of irradiation of laser 30 is configured to can in the circumferentially movement arbitrarily of cylinder roller 23, be set as following the movement along this circumferencial direction of peristome 27 and move, therefore the cutting predetermined portions 10C of this peristome 27 is being positioned at, Continuous irradiation laser 30 certain hour in its conveying.Preferably make the direction that laser 30 intersects at the throughput direction with continuous print encasing 3 move, by the multiple outsourcing junction surfaces 33 longitudinally cutting arranged on the direction orthogonal with throughput direction, in same operation, form involution edge 41 and non-involution portion 42.In addition, laser 30, preferably with the laser 30 in the some footpath narrower than the width at outsourcing junction surface 33, the longitudinally central part at the outsourcing junction surface 33 of the throughput direction of cutting continuous print encasing 3.
When to the cutting predetermined portions 10C irradiating laser 30 of 4 Rotating fields, at the formation material (fiber etc.) of the sheet 31,32 that this cutting predetermined portions 10C exists, the heating produced due to the direct projection of laser 30 and disappearance of gasifying, this formation material melting of indirectly generating heat by laser 30 of the neighbouring existence of this cutting predetermined position 10C.Consequently, do not have in the part at outsourcing junction surface 33 at cutting predetermined portions 10C, as shown in Fig. 9 (c), be syncopated as the mode of a laminate (diaper predecessor) from diaper continuum 10 by fusing with the cutting predetermined portions 10C of 4 Rotating fields, while this diaper continuum 10 is cut, the cutting edge of 4 sheets 31,32 in this laminate produced by this cutting each other and the cutting edge welding separately from each other of 4 sheets 31,32 of this diaper continuum 10 be split.Before these cutting edges are formed from it separately from each other, (before the cutting of the diaper continuum 10 undertaken by the irradiation of laser 30) is by being clipped by support unit 21 and press belt 24 and become pressurized state (compressive state).Before these cutting edges are formed from it separately from each other, (before the cutting of the diaper continuum 10 undertaken by the irradiation of laser 30) is by being clipped by support unit 21 and press belt 24 and become pressurized state (compressive state).
On the other hand, have in the part at outsourcing junction surface 33 at cutting predetermined portions 10C, as shown in Figure 10, be syncopated as the mode of a laminate (diaper predecessor) from diaper continuum 10 by fusing with the cutting predetermined portions 10C of 4 Rotating fields, this diaper continuum 10 is cut, on the other hand, the cutting edge of 2 sheets 31,32 of the front portion side of this laminate produced by this cutting each other with the cutting edge welding separately from each other of 2 sheets 31,32 of rear body section side.On the other hand, the cutting edge 3F ' of the front portion side of this diaper continuum 10 be split and cutting edge 3R ' the not welding of front portion side.These mutual uncombined cutting edge 3F ' and 3R ' are mutual uncombined edge 3F ', the 3R ' in above-mentioned non-involution portion 42.
According to the manufacture method of illustrated diaper, like this by the irradiation of a laser, the cutting simultaneously implementing banded encasing 3 and the cutting edge welding each other of the encasing 3 being in pressurized state of two positions produced by this cutting, therefore with the irradiation of use twice laser by compared with the method for the welding position welding of two positions, welding and cutting can be implemented with the Laser output of general half in same operation, diaper 1 can be manufactured expeditiously.
As shown in Fig. 9 (c), the cutting edge of the sheet 31,32 that the part outside the outsourcing junction surface 33 of cutting predetermined portions 10C produces, after terminating with irradiation in the irradiation of laser 30, heating immediately becomes molten condition, kept the pressurized state formed by support unit 21 and press belt 24 respectively from 1 diaper predecessor of diaper continuum 10 cutting and this diaper continuum 10 by the irradiation of laser 30, by the rapid cooling curing of extraneous gas after terminating from irradiation, the weld portion 40 that formation material (fiber etc.) melting becoming this cutting edge forms as one.So, by being formed, there is the involution edge 41 of weld portion 40 and non-involution portion 42, forming in a pair side seal portion 4,4 in 1 diaper.And, as required, also can use the known cooling means such as suction device, exhaust apparatus, forcibly the cutting edge of cooling fin 31,32, promote the formation of weld portion 40.
So, when the cutting predetermined portions 10C (the formation predetermined position in side seal portion 4) of a position is cut, laser 30 moves in the mode of its point of irradiation facing to other peristome 27 adjacent on the rightabout of throughput direction A, irradiates via these other peristome 27 other the cutting predetermined portions 10C be located thereon.Thus, other cutting predetermined portions 10C is cut as described above, welding, forms another side seal portion 4 (weld portion 40) forming a pair with the side seal portion 4 formed before.Afterwards, by repeatedly same operation, manufacture the Breeches type disposable diaper 1 having the encasing 3 in a pair side seal portion 4,4 continuously.
So, according to the manufacture method of above-mentioned embodiment, the involution edge 41 in side seal portion 4 and non-involution portion 42 can be formed in same operation, diaper 1 can be manufactured efficiently.In addition, the sheet fusing not configuring the outsourcing junction surface 33 of elastomeric element 5,6 of cutting predetermined portions 10C forms non-involution portion 42, therefore in the both sides clipping non-involution portion 42 of diaper 1, there is not the elastomeric element 5,6 opening non-involution portion 42 in waist direction.Therefore, when wearing diaper to object or the time of dress, be difficult to produce non-involution portion 4 and excessively open and be suspended to other things, outer-skin sheet 31, inner layer piece 32 clot or side seal portion 4 by mistake avulsed unfavorable condition.
Through the diaper 1 possessing a pair side seal portion 4,4 that the operation of the cutting and welding of implementing encasing 3 obtains simultaneously, flexibility, the skin sense of touch in side seal portion 4 are excellent, and wearing feeling is good.
Laser is described, as the laser irradiating diaper continuum 10 (banded encasing 3), uses the sheet (outer-skin sheet 31 and inner layer piece 32) forming encasing 3 can absorb and the laser of the wavelength that this sheet is generated heat.At this, " forming the sheet of encasing " is not limited to the sheet (such as, being outer-skin sheet 31 in aforesaid way) in the face (face abutted with support unit 21) forming encasing, can as long as the sheet forming encasing is any.Whether, for each sheet of forming this encasing, be by this sheet absorbed laser that this sheet generate heat, by the relation decision of the wavelength of the material of sheet and the laser of use if irradiating the laser of encasing.When the sheet of formation encasing is widely used plastic non-woven fabrics, film in the manufacture of the absorbent commodity such as disposable diaper, sanitary napkin (hygienic article), preferably use CO as laser 2laser, YAG laser, LD laser (semiconductor laser), YVO4 laser, fibre laser etc.In addition, when the sheet of formation encasing comprises polyethylene, polyethylene terephthalate, polypropylene etc. as synthetic resin, the wavelength this sheet well being generated heat as being absorbed by this sheet such as preferably uses more than 8.0 μm less than 15.0 μm, particularly preferably uses the CO that the high laser aid exported exists 2more than 9.0 μm less than 11.0 μm of the oscillation wavelength of laser.Point footpath, the Laser output etc. of laser, consider that the material, thickness etc. of the sheet forming encasing are suitably selected.
Above, describe this utility model based on embodiment, but this utility model is not by the restriction of above-mentioned embodiment, can suitably change.
Such as, banded encasing (laminate), except the laminate of the sheet overlap of 4 such as shown in Fig. 9 (a), also can the be overlapping laminate of sheet of 2,3, more than 5.
In addition, the encasing 3 of above-mentioned embodiment is not divided into veutro portion 1A and drosal part 1B as shown in Figure 3, but there is the continuous shape of the hourglass shape etc. throughout veutro portion 1A, crotch bottom 1C and drosal part 1B, but encasing of the present utility model is not limited to such continuous print shape, the dorsal sheet member of the sternopleurite parts that such as also can be divided into the veutro (front side) being configured in wearer and the dorsal part (rear side) being configured in wearer, absorbent main body is erected on these two chip parts and fixes.
Figure 11 represents the figure of the Breeches type disposable diaper 1 ' of the encasing with segmentation type, in diaper 1 ' shown in Figure 11, encasing 3 is divided into the sternopleurite parts 3A of the rectangle of growing crosswise of the veutro being configured in wearer and is configured in the dorsal sheet member 3B of the rectangle of growing crosswise of dorsal part of wearer, and absorbent main body 2 is erected on sternopleurite parts 3A and dorsal sheet member 3B and fixes.In diaper 1 ', the edge, both sides of sternopleurite parts 3A and the edge, both sides of dorsal sheet member 3B engage and form side seal portion 4.Sternopleurite parts 3A and dorsal sheet member 3B, between the outer-skin sheet 31 of respective formation outer surface and configuration inner layer piece 32 within it, the outsourcing junction surface (not shown) being formed as loose point-like by dispersion in longitudinal direction and width engages.Although side seal portion 4 is not shown, but by the method same with above-mentioned diaper 1, form the side edge part A1 of involution edge 41 that the side edge part A1 of sternopleurite parts 3A and the side edge part B1 of dorsal part sheet 3B be combined by weld portion and sternopleurite parts 3A and the non-involution portion 42 that the side edge part B1 of dorsal part sheet 3B is not combined, these involution edges 41 and non-involution portion 42, the long side direction along side seal portion 4 is alternately formed.
Form outsourcing junction surface, lower end at above-mentioned leg opening part, form the technology of the open non-involution portion 43d in below, be more preferably applicable to such having in the Pant-type wearable article of the encasing of segmentation type.Having the above-mentioned overlap pressurization operation in the manufacture method of the Breeches type disposable diaper of the encasing of this segmentation type, is that the formation predetermined position in the side seal portion of the encasing of the band shape of the front portion side (banded sternopleurite parts) of the encasing making to have the band shape being fixed with absorbent main body and the structure of rear body section side (banded dorsal sheet member) overlap becomes pressurized state.
In addition, replace the non-involution portion 43d that open non-involution portion 43u and below above being formed in a side seal portion 4 are open, can only form the open non-involution portion 43u in top, also can only form the open non-involution portion 43d in below, also can neither be formed.In addition, a side seal portion and another side seal portion preferably form involution edge and non-involution portion with same pattern, but in a side seal portion and another side seal portion, form involution edge with different patterns and non-involution portion also passable.
In addition, in the above-described embodiment, before above-mentioned overlap pressurization operation, as shown in Figure 7, along the both sides 3a of the throughput direction of the encasing 3 of band shape, 3a, namely the both sides along throughput direction that the outer-skin sheet 31 of band shape is respective with banded inner layer piece 32 fold in the mode covering the long side direction both ends of absorbent main body 2, but also can use than the sheet of banded inner layer piece 32 in the length length of width (direction orthogonal with long side direction) as the outer-skin sheet 31 of band shape, only will at overlapping two sheets 31, the extension extending to the outer-skin sheet 31 of foreign side when 32 from the lateral margin of inner layer piece 32 folds in the mode covering the long side direction both ends of absorbent main body 2.In this case, the open end in the waist opening portion 8 of the cutting predetermined portions 10C of diaper continuum 10 and be 6 Rotating fields parts of 6 sheet overlaps near it, the part beyond it is 4 Rotating fields parts of 4 sheet overlaps.In addition, along both sides 3a, 3a of the throughput direction of the encasing 3 of band shape, the both sides along throughput direction that namely outer-skin sheet 31 of band shape is respective with banded inner layer piece 32 are folding also passable.
In addition, the above-mentioned side seal portion 4 like that with involution edge 41 and non-involution portion 42, can only be formed in the side of diaper.In addition, replace two of the mutually disengaged edge in non-involution portion to be formed at outsourcing junction surface, also can be formed at outsourcing junction surface in the edge of any one in front portion side and rear body section side, another edge is formed at the part beyond outsourcing junction surface.
In addition, Pant-type wearable article of the present utility model, be not limited to Breeches type disposable diaper, also can be the physiology protective pad of pants type, in addition, also can be that there is the encasing forming dress article outer surface, not there is the apkin cover (Diaper Cover) etc. of absorbent main body on the other hand.
The explanation clipped of an above-mentioned embodiment and the important document only having an embodiment to have, suitably can be applicable to other embodiment respectively, and in addition, the important document of each embodiment can suitable phase double replacement between embodiment.
About above-mentioned embodiment of the present utility model, also disclose following content (Pant-type wearable article).
<1> Pant-type wearable article, it has the encasing of the outer surface forming dress article, the edge, both sides of the edge, both sides of the encasing of front portion and the encasing of rear body section engages, form a pair side seal portion, waist opening portion and a pair leg opening part
The encasing of front portion and rear body section at least one, forms the multiple outsourcing junction surfaces passing through to disperse at longitudinal direction and the width of dress article between two sheets of this encasing and engages,
At least one in described side seal portion, alternately has at the long side direction in this side seal portion: the involution edge that the weld portion that the edge of the edge of the encasing of front portion and the encasing of rear body section is extended by the long side direction in this side seal portion combines; With the non-involution portion that the edge of the encasing of front portion and the edge of the encasing of rear body section are not combined,
At least one of the edge of the encasing mutually do not combined of the front portion in described non-involution portion and rear body section is formed at described outsourcing junction surface.
Pant-type wearable article described in <2><1GreatT.Grea T.GT, in described non-involution portion, between described two sheets of at least one edge of the edge of the edge of the encasing of front portion and the encasing of rear body section, engaged by the juncture forming described outsourcing junction surface.
Pant-type wearable article described in <3><1GreatT.Grea T.GT or <2>, the edge mutually do not combined in each non-involution portion in described side seal portion is all formed at outsourcing junction surface.
Pant-type wearable article according to any one of <4><1GreatT.Grea T.GT ~ <3>, the weld portion of described involution edge, on the cross section orthogonal with the direction that side seal portion when wearing extends, the width being exposed to the outer surface of diaper is below 5mm, be preferably below 1mm, be more preferably below 0.5mm.
Pant-type wearable article according to any one of <5><1GreatT.Grea T.GT ~ <4>, the weld portion of described involution edge, on the cross section orthogonal with the direction that side seal portion when wearing extends, the width being exposed to diaper outer surface is more than 0.1mm.
Pant-type wearable article according to any one of <6><1GreatT.Grea T.GT ~ <5>, the outer rim of described involution edge is formed as the arcuation that side protrudes in encasing, and form at the position comprising side in outer rim and the outer inclusion of Bi Qi four sheets weld portion each other forming this encasing, this weld portion is larger than the width at both ends at the central part of the thickness direction of this encasing.
Pant-type wearable article according to any one of <7><1GreatT.Grea T.GT ~ <6>, as described involution edge, there is the involution edge between described non-involution portion, the length of this involution edge is preferably more than 0.5mm, be more preferably more than 1mm, and be preferably below 40mm, be more preferably below 30mm.
Pant-type wearable article according to any one of <8><1GreatT.Grea T.GT ~ <7>, the length at described outsourcing junction surface is preferably more than 0.5mm, be more preferably more than 1mm, and be preferably below 20mm, be more preferably below 15mm.
Pant-type wearable article according to any one of <9><1GreatT.Grea T.GT ~ 8>, the ratio (L41:L42) of the length L42 in the length L41 of described involution edge and outsourcing junction surface or non-involution portion is preferably 1:20 ~ 80:1, is more preferably 1:10 ~ 30:1.
Pant-type wearable article according to any one of <10><1GreatT.Gre aT.GT ~ <9>, the number in the outsourcing junction surface that a side seal portion is formed or non-involution portion is preferably more than 1, be more preferably more than 2, preferably the number of the every 10mm of length of the long side direction in side seal portion is less than 10 in addition, be more preferably less than 5, preferably the number of the every 10mm of width of the long side direction in side seal portion is 1 ~ 10 in addition, is more preferably 2 ~ 5.
Pant-type wearable article according to any one of <11><1GreatT.Gre aT.GT ~ <10>, as one of described outsourcing junction surface, there is the outsourcing junction surface, upper end of the opening circumference being formed in described waist opening portion, this outsourcing junction surface, upper end is formed the non-involution portion that this opening circumference side is open.
Pant-type wearable article described in <12><11GreatT.Gr eaT.GT, other the outsourcing junction surface be positioned in contrast by described leg opening part side, in the length of the long side direction in side seal portion, is longer than in outsourcing junction surface, described upper end.
Pant-type wearable article described in <13><11GreatT.Gr eaT.GT or <12>, outsourcing junction surface, described upper end is along the length of the long side direction in side seal portion, be preferably more than 1.1 times of other outsourcing junction surfaces 33, be more preferably more than 1.2 times, and be preferably less than 20 times, be more preferably less than 10 times.
Pant-type wearable article according to any one of <14><1GreatT.Gre aT.GT ~ <13>, as one of described outsourcing junction surface, at the opening circumference of described leg opening part, there is outsourcing junction surface, lower end, be formed with the non-involution portion that this opening circumference side is open at this outsourcing junction surface, lower end.
Pant-type wearable article described in <15><14GreatT.Gr eaT.GT, outsourcing junction surface, described lower end, in the length of the long side direction in side seal portion, is longer than other outsourcings be positioned in contrast by side, described waist opening portion and is engaged minister.
Pant-type wearable article described in <16><14GreatT.Gr eaT.GT or <15>, outsourcing junction surface, described lower end is along the length of the long side direction in side seal portion, be preferably more than 1.1 times of other outsourcing junction surfaces 33, be more preferably more than 1.2 times, and be preferably less than 20 times, be more preferably less than 10 times.
Pant-type wearable article according to any one of <17><1GreatT.Gre aT.GT ~ <16>, between longitudinally adjacent described outsourcing junction surface, be configured with elastomeric element, there is not elastomeric element in the width both sides clipping described non-involution portion.
Pant-type wearable article according to any one of <18><1GreatT.Gre aT.GT ~ <17>, the circumference in described waist opening portion forms the waist elastic members of waist elasticity pars contractilis, front portion (veutro portion) and rear body section (drosal part) each in, be configured between the end of the longitudinal direction of absorbent main body and all acies in waist opening portion.
Pant-type wearable article described in <19><18GreatT.Gr eaT.GT, more forming the waist elastomeric element in waist elastic telescopic portion by crotch lower side than waist elasticity pars contractilis, front portion (veutro portion) and rear body section (drosal part) each in, be configured in end than the longitudinal direction of absorbent main body more by the position of crotch lower side.
Pant-type wearable article according to any one of <20><1GreatT.Gre aT.GT ~ <19>, the side seal portion that left and right is fixed at the both ends of the transverse direction of the diaper of described waist elastic members or the end winding support portion formed in its vicinity.
Pant-type wearable article according to any one of <21><1GreatT.Gre aT.GT ~ <20>, the end winding support in the outside of the transverse direction of the diaper of waist elastomeric element is in the side seal portion of left and right or the end winding support portion that formed in its vicinity.
Pant-type wearable article according to any one of <22><1GreatT.Gre aT.GT ~ <21>, the end winding support of the inner side of the transverse direction of the diaper of described waist elastomeric element is in the inner side fixed part formed near the lateral margin of absorbent main body.
Pant-type wearable article according to any one of <23><1GreatT.Gre aT.GT ~ <22>, waist elastic members between pair of outside fixed part by between outsourcing junction surface adjacent on longitudinal X, be not fixed on the good inner layer piece of outer-skin sheet any one on.
Pant-type wearable article according to any one of <24><1GreatT.Gre aT.GT ~ <23>, described waist elastomeric element between pair of outside fixed part by between outsourcing junction surface adjacent on longitudinal X, be not fixed on outer-skin sheet and inner layer piece any one on.
Pant-type wearable article according to any one of <25><1GreatT.Gre aT.GT ~ <24>, outsourcing junction surface forms row respectively on longitudinal X and width of diaper, is configured with elastomeric element between the adjacent outsourcing junction surface in the row of longitudinal extension.
Pant-type wearable article according to any one of <26><1GreatT.Gre aT.GT ~ <25>, described side seal portion, from the more outward position of the ratio weld portion in the inward-outward direction P gone away from the skin side of wearer close to the skin side direction of wearer of dress article, does not have the formation fiber of encasing to leave the part of fiber shape.
Pant-type wearable article according to any one of <27><1GreatT.Gre aT.GT ~ <26>, encasing is not divided into front portion (veutro portion) and rear body section (drosal part), has throughout veutro portion, the shape continuously such as hourglass-shaped of crotch bottom and drosal part.
Pant-type wearable article according to any one of <28><1GreatT.Gre aT.GT ~ <27>, encasing is divided into the sternopleurite parts of the front portion (veutro, front side) being configured in wearer and is configured in the dorsal sheet member of rear body section (dorsal part, rear side) of wearer, and absorbent main body erection is fixed on two chip parts.
Pant-type wearable article according to any one of <29><1GreatT.Gre aT.GT ~ <28>, there is the side seal portion in described involution edge and described non-involution portion, be only formed at a sidepiece of diaper.
Pant-type wearable article according to any one of <30><1GreatT.Gre aT.GT ~ <29>, described outer-skin sheet has the length extended out further than the position gripping waist elastic members by outer-skin sheet and inner layer piece, and the elongated area that the ratio inner layer piece of outer-skin sheet extends out folds into absorbent main body side.
The manufacture method of a <31> Pant-type wearable article, the Pant-type wearable article of described Pant-type wearable article according to any one of described <1> ~ <30>, the manufacture method of described Pant-type wearable article has:
The formation predetermined position in the side seal portion of the overlapping continuous print encasing of the encasing of the encasing of front portion side and rear body section side is made to become the overlap pressurization operation of pressurized state; With
To the formation predetermined position irradiating laser in described side seal portion being in pressurized state, cut described continuous print encasing, and make the welding and form the side seal portion formation process in described side seal portion each other of the cutting edge of the encasing of the laminated arrangement produced by this cutting
In described side seal portion formation process, in the direction that the throughput direction with described continuous print encasing intersects, described laser is moved, longitudinally the multiple outsourcing junction surface of cutting, forms described involution edge and described non-involution portion thus.

Claims (30)

1. a Pant-type wearable article, it has the encasing of the outer surface forming dress article, the edge, both sides of the edge, both sides of the encasing of front portion and the encasing of rear body section engages, form a pair side seal portion, waist opening portion and a pair leg opening part, the feature of described Pant-type wearable article is:
The encasing of front portion and rear body section at least one, forms the multiple outsourcing junction surfaces passing through to disperse at longitudinal direction and the width of dress article between two sheets of this encasing and engages,
At least one in described side seal portion, alternately has at the long side direction in this side seal portion: the involution edge that the weld portion that the edge of the edge of the encasing of front portion and the encasing of rear body section is extended by the long side direction in this side seal portion combines; With the non-involution portion that the edge of the encasing of front portion and the edge of the encasing of rear body section are not combined,
At least one of the edge of the encasing mutually do not combined of the front portion in described non-involution portion and rear body section is formed at described outsourcing junction surface.
2. Pant-type wearable article as claimed in claim 1, is characterized in that:
In described non-involution portion, between described two sheets of at least one edge of the edge of the edge of the encasing of front portion and the encasing of rear body section, engaged by the juncture forming described outsourcing junction surface.
3. Pant-type wearable article as claimed in claim 1, is characterized in that:
The edge mutually do not combined in each non-involution portion in described side seal portion is all formed at outsourcing junction surface.
4. Pant-type wearable article as claimed in claim 1, is characterized in that:
The weld portion of described involution edge, on the cross section orthogonal with the direction that side seal portion when wearing extends, the width being exposed to the outer surface of dress article is below 5mm.
5. Pant-type wearable article as claimed in claim 1, is characterized in that:
The weld portion of described involution edge, on the cross section orthogonal with the direction that side seal portion when wearing extends, the width being exposed to the outer surface of dress article is more than 0.1mm.
6. Pant-type wearable article as claimed in claim 1, is characterized in that:
The outer rim of described involution edge is formed as the arcuation that side protrudes in encasing, and form at the position comprising side in outer rim and the outer inclusion of Bi Qi four sheets weld portion each other forming this encasing, this weld portion is larger than the width at both ends at the central part of the thickness direction of this encasing.
7. Pant-type wearable article as claimed in claim 1, is characterized in that:
Have the involution edge between described non-involution portion as described involution edge, the length of this involution edge is more than 0.5mm and is below 40mm.
8. Pant-type wearable article as claimed in claim 1, is characterized in that:
The length at described outsourcing junction surface is more than 0.5mm, and is below 20mm.
9. Pant-type wearable article as claimed in claim 1, is characterized in that:
The ratio L41:L42 of the length L42 in the length L41 of described involution edge and outsourcing junction surface or non-involution portion is 1:20 ~ 80:1.
10. Pant-type wearable article as claimed in claim 1, is characterized in that:
The number in the outsourcing junction surface that a side seal portion is formed or non-involution portion is more than 1, and the number of the every 10mm of length of the long side direction in side seal portion is less than 10, and the number of the every 10mm of width of the long side direction in side seal portion is 1 ~ 10.
11. Pant-type wearable article as claimed in claim 1, is characterized in that:
As one of described outsourcing junction surface, there is the outsourcing junction surface, upper end of the opening circumference being formed in described waist opening portion, this outsourcing junction surface, upper end is formed the non-involution portion that this opening circumference side is open.
12. Pant-type wearable article as claimed in claim 11, is characterized in that:
Other the outsourcing junction surface be positioned in contrast by described leg opening part side, in the length of the long side direction in side seal portion, is longer than in outsourcing junction surface, described upper end.
13. Pant-type wearable article as claimed in claim 11, is characterized in that:
Outsourcing junction surface, described upper end, along the length of the long side direction in side seal portion, is more than 1.1 times less than 20 times of other outsourcing junction surfaces.
14. Pant-type wearable article as claimed in claim 1, is characterized in that:
As one of described outsourcing junction surface, at the opening circumference of described leg opening part, there is outsourcing junction surface, lower end, be formed with the non-involution portion that this opening circumference side is open at this outsourcing junction surface, lower end.
15. Pant-type wearable article as claimed in claim 14, is characterized in that:
Other outsourcing junction surfaces be positioned in contrast by side, described waist opening portion, in the length of the long side direction in side seal portion, are longer than in outsourcing junction surface, described lower end.
16. Pant-type wearable article as claimed in claim 14, is characterized in that:
Outsourcing junction surface, described lower end, along the length of the long side direction in side seal portion, is more than 1.1 times less than 20 times of other outsourcing junction surfaces.
17. Pant-type wearable article as claimed in claim 1, is characterized in that:
Between longitudinally adjacent described outsourcing junction surface, be configured with elastomeric element, there is not elastomeric element in the width both sides clipping described non-involution portion.
18. Pant-type wearable article as claimed in claim 1, is characterized in that:
Circumference in described waist opening portion forms the waist elastic members of waist elasticity pars contractilis, front portion and rear body section each in, be configured between the end of the longitudinal direction of absorbent main body and all acies in waist opening portion.
19. Pant-type wearable article as claimed in claim 18, is characterized in that:
More forming the waist elastomeric element in waist elastic telescopic portion by crotch lower side than waist elasticity pars contractilis, front portion and rear body section each in, be configured in end than the longitudinal direction of absorbent main body more by the position of crotch lower side.
20. Pant-type wearable article as claimed in claim 1, is characterized in that:
The side seal portion that left and right is fixed at the both ends of the transverse direction of the dress article of described waist elastic members or the end winding support portion formed in its vicinity.
21. Pant-type wearable article as claimed in claim 1, is characterized in that:
The end winding support in the outside of the dress article transverse direction of described waist elastomeric element is in the side seal portion of left and right or the end winding support portion that formed in its vicinity.
22. Pant-type wearable article as claimed in claim 1, is characterized in that:
The end winding support of the inner side of the dress article transverse direction of described waist elastomeric element is in the inner side fixed part formed near the lateral margin of absorbent main body.
23. Pant-type wearable article as claimed in claim 1, is characterized in that:
Described waist elastic members between pair of outside fixed part by longitudinally between (X) upper adjacent outsourcing junction surface, be not fixed on outer-skin sheet and inner layer piece any one on.
24. Pant-type wearable article as claimed in claim 1, is characterized in that:
Described waist elastomeric element between pair of outside fixed part by longitudinally between (X) upper adjacent outsourcing junction surface, be not fixed on outer-skin sheet and inner layer piece any one on.
25. Pant-type wearable article as claimed in claim 1, is characterized in that:
Described outsourcing junction surface forms row respectively in the longitudinal direction (X) and width of dress article, is configured with elastomeric element between the adjacent outsourcing junction surface in the row of longitudinal extension.
26. Pant-type wearable article as claimed in claim 1, is characterized in that:
Described side seal portion, from the more outward position of the ratio weld portion in the inward-outward direction (P) of going away from the skin side of wearer close to the skin side direction of wearer of dress article, does not have the formation fiber of encasing to leave the part of fiber shape.
27. Pant-type wearable article as claimed in claim 1, is characterized in that:
Described encasing is not divided into front portion and rear body section, has throughout veutro portion, the hourglass-shaped continuous print shape of crotch bottom and drosal part.
28. Pant-type wearable article as claimed in claim 1, is characterized in that:
Described encasing is divided into the sternopleurite parts of the front portion being configured in wearer and is configured in the dorsal sheet member of rear body section of wearer, and absorbent main body erection is fixed on described two chip parts.
29. Pant-type wearable article as claimed in claim 1, is characterized in that:
There is the side seal portion in described involution edge and described non-involution portion, be only formed at a sidepiece of dress article.
30. Pant-type wearable article as claimed in claim 1, is characterized in that:
Described outer-skin sheet has the length extended out further than the position gripping waist elastic members by outer-skin sheet and inner layer piece, and the elongated area that the ratio inner layer piece of outer-skin sheet extends out folds into absorbent main body side.
CN201420348409.8U 2013-06-28 2014-06-26 Pant-type wearable article Expired - Lifetime CN204033619U (en)

Applications Claiming Priority (2)

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JP2013137403A JP6108618B2 (en) 2013-06-28 2013-06-28 Pants-type wearing article and manufacturing method thereof
JP2013-137403 2013-06-28

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RU (1) RU150094U1 (en)

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JP2017029683A (en) * 2016-03-03 2017-02-09 ユニ・チャーム株式会社 Underpants type absorbent article and production method thereof

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JP5156353B2 (en) * 2007-11-30 2013-03-06 大王製紙株式会社 Pants-type disposable diapers
JP5537846B2 (en) * 2009-07-01 2014-07-02 花王株式会社 Pants-type absorbent article
JP2013071282A (en) * 2011-09-27 2013-04-22 Kao Corp Sheet joining device
JP5931423B2 (en) * 2011-12-08 2016-06-08 大王製紙株式会社 Pants-type disposable diaper
JP6095212B2 (en) * 2012-12-27 2017-03-15 花王株式会社 Pants-type absorbent article

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10806635B2 (en) 2016-03-15 2020-10-20 The Procter & Gamble Company Methods and apparatuses for separating and positioning discrete articles

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