CN102740818B - Absorbent article - Google Patents
Absorbent article Download PDFInfo
- Publication number
- CN102740818B CN102740818B CN201080062888.1A CN201080062888A CN102740818B CN 102740818 B CN102740818 B CN 102740818B CN 201080062888 A CN201080062888 A CN 201080062888A CN 102740818 B CN102740818 B CN 102740818B
- Authority
- CN
- China
- Prior art keywords
- absorbent
- absorbent core
- leakage
- sheet
- sheet material
- 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 - Fee Related
Links
- 239000002250 absorbent Substances 0.000 title claims abstract description 187
- 230000002745 absorbent Effects 0.000 title claims abstract description 186
- 239000007788 liquid Substances 0.000 claims abstract description 64
- 238000000926 separation method Methods 0.000 claims abstract 4
- 239000000463 material Substances 0.000 claims description 71
- 125000006850 spacer group Chemical group 0.000 claims description 24
- 230000002776 aggregation Effects 0.000 claims description 6
- 238000004220 aggregation Methods 0.000 claims description 6
- 230000035699 permeability Effects 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims description 4
- 230000029142 excretion Effects 0.000 abstract description 8
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 4
- 238000012360 testing method Methods 0.000 description 28
- 239000006096 absorbing agent Substances 0.000 description 27
- 239000000835 fiber Substances 0.000 description 25
- 230000000694 effects Effects 0.000 description 13
- 239000010408 film Substances 0.000 description 13
- 238000009792 diffusion process Methods 0.000 description 12
- 239000008280 blood Substances 0.000 description 10
- 210000004369 blood Anatomy 0.000 description 10
- 230000009471 action Effects 0.000 description 8
- 238000003825 pressing Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000004744 fabric Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 210000004914 menses Anatomy 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 210000001124 body fluid Anatomy 0.000 description 5
- 239000010839 body fluid Substances 0.000 description 5
- 210000001217 buttock Anatomy 0.000 description 5
- 230000036541 health Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 229920001131 Pulp (paper) Polymers 0.000 description 4
- 230000001464 adherent effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 4
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 206010021639 Incontinence Diseases 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 210000003141 lower extremity Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002040 relaxant effect Effects 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 229920000247 superabsorbent polymer Polymers 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 206010012735 Diarrhoea Diseases 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000002706 plastid Anatomy 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
- A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
- A61F13/4756—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/535—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
- A61F13/536—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes having discontinuous areas of compression
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
In view of the challenges specific to an absorbent article with leakage prevention grooves, the disclosed absorbent article seeks to mitigate the reduction in flexibility of the entire absorbent body engendered by the leakage prevention grooves and, while preventing the spread of liquid due to side leakage, to effectively use the absorbent core inside and outside of the leakage prevention grooves depending on the amount of excretion. The absorbent article is a hygienic napkin which has a liquid permeable front surface sheet disposed on the side of the surface contacting the skin, a liquid permeable rear surface sheet disposed on the side of the surface not contacting the skin, and an absorbent core disposed between the aforementioned two sheets. The aforementioned absorbent core has a length direction and a width direction orthogonal thereto. Said absorbent core has multiple separation gaps extending along the width direction thereof, and the aforementioned separation gaps of the aforementioned absorbent core are also formed along the length direction thereof. The aforementioned absorbent core is formed from a collection of horizontally and vertically independent small absorption units. Leakage prevention grooves are formed in said absorbent core extending in the length direction, traversing one or more of the aforementioned separation gaps, and compressed, along with the aforementioned front surface sheet, from the side of said front surface sheet.
Description
Technical field
The present invention relates to sanitary napkin and the absorbent commodity such as disposable diaper, Briefs for incontinence patients.
Background technology
Recent years, the requirement for absorbent commodities such as sanitary napkins is more and more higher.Its kind and form also present variation, not only require absorbent properties, also require adherent feeling, fitness, sometimes also require that improving its outward appearance makes it more lovely.In order to meet these demands, the material of parts and structure forming each absorbent commodity being improved, particularly recently, proposing the multiple product with the separately using function according to service time and situation.
As the method for performance improving above-mentioned this absorbent commodity, for example there are face sheet and absorber to implement the method for concavo-convex processing.Such as, patent documentation 1 illustrates a kind of physiological articles, it has: the face sheet of side, skin contact face, the back-sheet of side, non-skin contact face and the absorber between two sheet materials, implements to extrude the concavo-convex of (pressing) from the above-mentioned absorber of skin contact face side direction of above-mentioned face sheet.Above-mentionedly concavo-convexly become leakage-proof socket, thereby, it is possible at above-mentioned physiological articles central part joining faces sheet material and absorber, suppress skew, and suppress the diffusion of liquid.
Prior art document
Patent documentation 1: Japan Patent No. 3877702 publication
Summary of the invention
The problem that invention will solve
But if consider further improvement, then the leakage-proof socket that the concavo-convex machining implemented sanitary napkin etc. produces generally includes the absorbent core with thickness, and fiber is compressed, and therefore, rigidity easily strengthens relatively in the portion.Thus, the fit of sanitary napkin and health likely declines.In addition, above-mentioned leakage-proof socket has suppression diffusion function, and therefore, its details will be set forth below, is sometimes difficult to use the absorbent core being positioned at and being more positioned at outside than this leakage-proof socket on the contrary.If possible, then wish to keep above-mentioned diffusion inhibit feature, and effectively utilize the absorbent members outside it.
In view of above-mentioned this point, the present invention is just used to solve the distinctive problem of the absorbent commodity with leakage-proof socket, its object is to, a kind of absorbent commodity is provided, the flexibility relaxing the whole absorber that leakage-proof socket causes declines, prevent the liquid as side leakage reason from spreading, the inner side of leakage-proof socket and the absorbent core in outside can be effectively utilized in the absorption of liquid keeps according to excretion.
For solving the method for problem
Absorbent commodity is utilized to solve above-mentioned problem, this absorbent commodity has: the face sheet being configured at the liquid permeability of side, skin contact face, be configured at the back-sheet of the opaque liquid of side, non-skin contact face and the absorbent core between described two sheet materials, described absorbent core has length direction and the width orthogonal with this length direction, this absorbent core has the multiple spacer portion extended along described width, the described spacer portion of described absorbent core is also formed along the length direction of this absorbent core, and described absorbent core by vertical and horizontal independently little absorbent portion aggregation and formed, leakage-proof socket is formed at described absorbent core, described leakage-proof socket also alongst extends across the above spacer portion, extruded by from this face sheet side together with described face sheet.
Invention effect
Absorbent commodity of the present invention is just used to solve the distinctive problem of the absorbent commodity with leakage-proof socket, play following good action effect: the flexibility relaxing the whole absorber that leakage-proof socket causes declines, prevent the liquid as side leakage reason from spreading, and the inner side of leakage-proof socket and the absorbent core in outside can be effectively utilized in the absorption of liquid keeps according to excretion.
Accompanying drawing explanation
Fig. 1 is the partial cut-out axonometric chart of the sanitary napkin representing an embodiment as absorbent commodity of the present invention from direction, skin contact face.
Fig. 2 is partial cross section's axonometric chart in the regulation cross section of the sanitary napkin shown in Watch with magnifier diagram 1, is (i) A-A line cross section, is (ii) B-B line cross section, is (iii) C-C line cross section.
The part plan schematic diagram of the mobile status of liquid when Fig. 3 is the excretion of the absorber receiving liquid coating layer representing present embodiment, a () represents the absorber at non-interval as comparing, b () represents that the situation that the excretion of liquid is in the present embodiment few, (c) represent the situation that the excretion of liquid is in the present embodiment many.
Fig. 4 is the plane graph representing the absorbent portion of embodiment (embodiment 2) as other in the present invention and the relation of leakage-proof socket.
Fig. 5 is the plane graph representing the absorbent portion of embodiment (embodiment 3) as other in the present invention and the relation of leakage-proof socket.
Fig. 6 is the side view that the bulk flexibility represented in embodiment, comparative example measures determinator and the operation thereof used in (bulk softness measurement).
Fig. 7 is the side view of determinator and the operation thereof used during the absorber flexural rigidity represented in embodiment, comparative example measures.
Fig. 8 is the partial cut-out schematic perspective view of the sanitary napkin representing the existing absorber that application is used in a comparative example.
Detailed description of the invention
Fig. 1 is the partial cut-out axonometric chart of the sanitary napkin representing an embodiment as absorbent commodity of the present invention from direction, skin contact face.(i) being partial cross section's axonometric chart in the A-A line cross section shown in Fig. 1 in Fig. 2, is (ii) partial cross section's axonometric chart in B-B line cross section, is (iii) partial cross section's axonometric chart in C-C line cross section.
In the sanitary napkin 100 of present embodiment, the side, skin contact face of sheet material 7 overleaf, the absorbent core (absorber) 10 surrounding multiple absorbent portion 3 with encirclement sheet material 2 is arranged by adhesive bonds.In addition, the outside of the left and right sides of the above-mentioned absorbent core 10 in the side, skin contact face of this back-sheet 7, sidepiece sheet material 8 abuts with back-sheet 7 and bonded.In the part that this back-sheet 7 abuts with sidepiece sheet material 8, face sheet 1 is clamped by back-sheet 7 and sidepiece sheet material 8, and towards its width (X-direction) interior direction, face sheet 1 is positioned at than the position of absorbent core 10 closer to side, skin contact face.In the present embodiment, as mentioned above, the besieged sheet material 2 of multiple absorbent portions 3 of absorbent core 10 wraps up, but, after with encirclement, sheet material 2 wrap up the absorbent portion 3 formed, by compression absorbent portion 3 and encirclement sheet material 2, absorbent portion with the degree do not offset by pressure viscosity gently to surrounding sheet material.In the outside of absorbent core 10, the peripheral sealing g being formed at the peripheral part of sanitary towel, not affect overall retractility and the degree that do not spill of liquid after absorbing, comes bonding face sheet 1, back-sheet 7 and sidepiece sheet material 8 by heat-sealing etc.Bonding not with except peripheral sealing g of the free end 81 of above-mentioned sidepiece sheet material 8, forms pocket (not shown) from free end 81 to the peripheral sealing g of sidepiece sheet material, has the effect preventing the side leakages such as liquid.
To the side, skin contact face of the sanitary napkin 100 in present embodiment, implement the leakage-proof socket 5 pressed to absorbent portion 3 from the side, skin contact face of face sheet 1.Leakage-proof socket 5 is at the length direction central part P of absorbent core 10, the width left and right sides is configured at centered by excretory portion, along with above-mentioned two leakage-proof sockets are close to the front and back end of absorbent core 10, the center direction gradually to absorbent core 10 bends, and front end, rear end are consistent.In other words, when leakage-proof socket 5 is overlooked, endless loops ground continuously and be configured at the side, skin contact face of sanitary napkin 100.In addition, there is no particular limitation for the shape of leakage-proof socket 5, in the present embodiment, the consistent endless loops ground in the front end of leakage-proof socket 5, rear end continuously, but front end, rear end also can be interlaced, preferably suitably determine according to purposes.In addition, excretory portion refer to directly accept the excremental part such as menses or leucorrhea and near.
To set forth below about the details forming the material of sanitary napkin of present embodiment and size etc., but in the present embodiment, face sheet 1, from absorbing rapidly the body fluid drained and the viewpoint transmitted to absorber and the good viewpoint of tactile skinfeel, uses hydrophilic hot-wind nonwoven cloth (air-through nonwoven).In addition, as back-sheet 7, use the moisture permeable film with aeration with monolayer.As absorbent portion 3, use the material be made up of paper pulp fiber and super absorbent polymer.As encirclement sheet material 2, use the water miscible napkin of difficulty without retractility.In addition, the side, non-skin contact face of sheet material 7 overleaf, applies the bonding agent (not shown) being used for sanitary napkin 100 to be fixed on clothes.Sanitary napkin 100 is adhesively fixed on the clothes of user by this binding agent.The sanitary napkin 100 of present embodiment the skin contact face of wearer according to its face sheet side direction, and its length direction configures from hypogastric region to buttocks, in other words, its width is made to configure towards the direction of the line connecting left lower limb right lower limb and wear use.
In the present invention, as long as no special explanation, the side of contact human body is called side, skin face or side, skin contact face or face side, the side of contact underwear is called non-side, skin face or non-side, skin contact face or rear side.In addition, the direction of the front side being positioned at human body when wearing is called front, its end is as leading section, and the direction being positioned at rear side is called rear, and its end is described as rearward end.In addition, the front of sanitary napkin or the normal direction at the back side are called thickness direction, its amount is called thickness.In addition, when overlooking sanitary napkin, will relatively have the direction of length to be called length direction, the direction orthogonal with this length direction be called width.In addition, above-mentioned length direction typically wear under state consistent with the fore-and-aft direction of human body.
The side, skin contact face of sanitary napkin 100 in the present embodiment, is provided with the leakage-proof socket 5 implementing concavo-convex processing (emboss) and formation.In addition, the aggregation G(that the absorbent core 10 in sanitary napkin 100 has independently little absorbent portion 3 does not represent as the symbol in figure).Absorbent core 10 is aggregation G of little absorbent portion 3, thus, adapt to " the health fitness " of the fluctuating in skin face and follow the action of wearer well, preventing with " the action tracing ability " in skin generating portion gap high, its details will be set forth below.Fig. 2 is (i) the axonometric chart of part to the leakage-proof socket 5 that the absorbent portion 3 in present embodiment is implemented seen of cross section in the width direction.
Leakage-proof socket 5 in present embodiment is formed by the pressing (extruding) of concavo-convex processing, face sheet 1, the upside 21 surrounding sheet material 2 and absorbent portion 3 is engaged, has the effect departed from suppressing above-mentioned all parts.On the other hand, the density of leakage-proof socket 5 part between this few fibers be pressed by concavo-convex processing is high, and therefore, capillary force is higher than other the part be not pressed.Therefore, even if move laterally to the liquid of central authorities' excretion in the mode of diffusion, in leakage-proof socket 5 part, it moves and is stopped, liquid is remained in the inner side of the leakage-proof socket 5 implemented in the form of a ring, can prevent from oozing out laterally from here.In aforesaid way, if the leakage-proof socket of the whole absorber of additional pressing, so, usually in this part, the rigidity reinforced of product, the fluctuating be difficult to along health is out of shape, and fit declines.In contrast, the sanitary napkin 100 in present embodiment have Fig. 2 (ii) shown in the flexible region W that releases, thereby, it is possible to the leakage-proof socket part easily strengthened in rigidity realizes high pliability.
The above-mentioned flexible region W that releases is formed at: the region that the leakage-proof socket 5 alongst extended implement sanitary napkin 100 and the separated from one another spacer portion m extended along width of absorbent portion 3 intersect.In the present invention, the spacer portion of absorbent core refers to, except existing when the part of absorbent core is cut off and overlooks and not having the part of parts, also comprises main element portion and is lacked and remove, in the meaning of this part of continuous print structure.In the present embodiment, mutually cut off respectively in absorbent portion, but, surround sheet material in this cut-off parts and form spacer portion m continuously.
Spacer portion m is the region that there is not absorbent portion 3 on the path of the leakage-proof socket 5 extended along the length direction of absorbent core, is to have back-sheet 7 to abut and engaged junction surface w with encirclement sheet material 2
1formed with the profile along absorbent portion 3, absorbent portion 3 and surround sheet material 2 and be in the disengaged portion w of disengaged condition
2region., in the part by concavo-convex pressing, there are not the parts with thickness of absorbent portion 3 in the flexible region W that releases, can not occur because pressing caused excessive pressure densification, consequently, the rising of rigidity is inhibited.Thus, in sanitary napkin 100 in the present embodiment, for the leakage-proof socket alongst extended that rigidity easily strengthens, interrupted flexible region is distributed in therebetween, can not significantly destroy as have at least along width by the good fit of the feature of the absorbent core 10 of the spacer portion m at interval.
The flexible region W that releases in present embodiment also plays distinctive liquid diffusibility.Below, detailed description is slightly carried out to this point.
First, according to Fig. 4 (a), existing concavo-convex processing situation is described.In figure, direction o is outside the width of absorbent core, and direction i is width center direction (excretory portion direction).In addition, the diffusion zone Q of liquid that discharges from excretory portion of the expression shown in a pecked line.Diffusion shape for liquid adopts modelling to represent, can be the shape identical with diagram in embodiments of the present invention.According to service condition, the amount of liquid drained is large, and the situation that the service time of sanitary napkin is long is a lot.Suppress the effect of the liquid of leakage-proof socket 5 diffusion described above, but in this case, the liquid holdup of draining, in the inside of leakage-proof socket surrounding excretory portion circlewise, is difficult to the absorber using outside, sometimes easily produces alluvial etc. in this part on the contrary.In addition, if the excretion of body fluid is a lot of a period, then stoped by the leakage-proof socket 5 alongst extended and the liquid that is detained just as these dykes and dams breach a dyke, emit quickly.So, if its amount is a small amount of, so, the absorbent portion outside the width being arranged in above-mentioned leakage-proof socket, the body fluid can drawing this outflow is dealt with, but, if its amount is too much, is not then crossed absorbent portion by the body fluid of the surplus attracted immediately and spill.When being absorbed the body fluid remaining on the central part P of absorbent core according to the body movement of wearer and being extruded, this situation becomes obvious, the side leakage of cause occurring making dirty underwear and clothes etc.
In contrast, in the sanitary napkin of present embodiment, play following effect, make it that above-mentioned side leakage not easily occur.In sanitary napkin 100 in the present embodiment, when the amount of drained liquid is few, as shown in Figure 3 (b), utilize certain part of leakage-proof socket 5 by the capillary force of the absorbent portion 32 of densification, stop the diffusion laterally of the diffusion Q of liquid, prevent the side leakage caused by movement of the liquid drained from the absorbent portion 31 of central part P side.Its effect is with concavo-convex to process the effect obtained same by general.On the other hand, when drained liquid is more, play the function do not had in existing parts, as shown in Figure 3 (c), release in the W of region flexible, liquid is marginally released at every turn, carries out the diffusion Q of stable liquid from leakage-proof socket 5 laterally.Specifically, as mentioned above, release in the W of region flexible, the path of leakage-proof socket 5 there is spacer portion m, do not absorb completely and the liquid overflowed even if having in the absorbent portion of inner side, also produce the face sheet of liquid permeability and surround sheet material institute and form that this of wall is flexible releases region W partly as the liquid stream S of the liquid of stream, can be absorbed in the absorbent portion 33 in outside, make it marginally hitherward move at every turn.In addition, at the flexible region W that releases, there is parts non-adhering part w each other
2, also guarantee stream in the portion.That is, the flexible region W that releases is under the saturation of the absorbent portion 31 of the inner side of leakage-proof socket 5, will herein as flow velocity regulating valve, moderately reduce liquid measure and move it, thus, absorb in the absorbent portion 33 in the outside of leakage-proof socket 5 and keep this liquid, this part can be effectively utilized.Consequently, in the present embodiment, when having a large amount of fluid drainage a period, and when the action liquid of the health according to wearer is extruded from central authorities, also playing the dry feeling keeping appropriateness, preventing the action effect that side leakage is good like this.
In addition, in the present embodiment, surrounding sheet material 2 is hydrophilic sheet, in order to improve the diffusion effect of aforesaid liquid further.That is, there is hydrophilic higher than face sheet 1, and the position that at least density is high, therefore, it is possible to by discharge liquors such as menses from face sheet 1 sucking-off rapidly, and give absorbent portion 3.In addition, the thin material that resistance when encirclement sheet material 2 preferred liquid is passed through is little, and the spacer portion m that absorbent portion 3 is spaced holds flexible pliable material.Thus, the absorbability of sanitary napkin becomes higher, and can improve the flexibility of whole absorber.
Herein, if be explained in detail the absorbent core 10 of present embodiment, then according to the side, skin contact face surrounding sheet material 22 in the side, non-skin face as non-telescoping, multiple absorbent portion 3 independently has the gap d of regulation, e(in its natural state mutually with reference to Fig. 1) mode, be set up along direction in length and breadth.In the absorber 10 of present embodiment, the mode that absorbent portion 3 arranges according to staggered (shape) configures.In the present invention, staggered arrangement refers to: when configuring the row of multiple absorbent portion side by side, make the arrangement that the spacing of the absorbent portion in the row adjoined staggers.In other words, this arrangement is, when orthogonal direction projects to the absorbent portion 3 of the row of regulation, and the configuration inconsistent with the projection image of adjacent absorbent portion 3.According to Fig. 1, this object lesson is described, the absorbent portion row B that (X-direction) extends alongst adjoins absorbent portion row A arranged side by side, makes it repeat alternately.Suppose that continuous print boost line t is gone up in the direction (Y-direction) orthogonal with on the bearing of trend with absorbent portion row B in center when overlooking absorbent portion row B
b.On the other hand, the same boost line t in absorbent portion row A is supposed
a.This boost line t
aand boost line t
baccording to the mode of the half pitch that mutually staggers, that is, boost line t
awith boost line t
bbetween be interposed between mode equal in entirety and arrange, form staggered arrangement.As modified embodiment of the present embodiment, such as enumerate, the direction 90-degree rotation staggered making spacing, the width (Y-direction) of absorber upper setting absorbent portion row A and absorbent portion row B, the embodiment that the boost line making alongst (X-direction) to extend departs from.In addition, if staggered arrangement is compared to stone-laying, so can be described as block cloth, as this variation, enumerate and tiltedly knit block (twill masonry), herringbone builds (herringbone masonry), Carapax Et Plastrum Testudinis is built (hexagonal masonry) etc.
This absorbent portion 3 is rectangular shape, in cross section (with reference to Fig. 2 (i)) long on length direction when overlooking is rectangular rectangular shape long on width, but in the present invention, there is no particular limitation for this shape, can adopt arbitrary shape.In the present embodiment, absorbent portion 3 is made up of paper pulp fiber and super absorbent polymer, and its profile may not be illustrated that solid shape, three-dimensional shape preferably above-mentioned as a whole.In addition, the arrangement in length and breadth of absorbent portion 3 is also not limited to above-mentioned, preferably suitably decides according to purposes.
Absorbent portion 3 is rectangle long on width in cross section, and the area as the front 3a of its side, skin contact face is roughly the same with the area of the back side 3b as side, non-skin contact face.In this section, side 3c is roughly orthogonal with back side 3b.Each absorbent portion 3 is with to surrounding the degree that departs from of sheet material by bonding gently.
The absorbent core 10 of present embodiment is made up of the set of multiple independently absorbent portion 3, and therefore, " the health fitness " that adapt to the fluctuating in skin face significantly improves compared with the large absorber of common one.In addition, also follow the action of wearer well, prevent " the action fitness " in generating portion gap between skin high.According to the present embodiment, this good morphotropism can be realized simultaneously and do not keep by the absorption of the liquid about this distortion etc.
According to multiple action effect surrounded on sheet material 22 in side, non-skin face that is specifically arranged, more detailed elaboration is carried out to cut-off absorbent portion 3 adopted in the present embodiment.First, the situation being also applicable to the extremely skin face of complicated bend is well enumerated.Such as, make sanitary napkin along during from the point of release to buttocks, bend to length direction along buttocks is circular, but, by the existing absorber of interior bag, significantly improve with other parts phase specific rigidity in the ordinary course of things, sometimes bend.The relation that cause and this bending are out of shape, inner absorber is difficult to enter anal cleft portion, sometimes produces large gap herein.That is, be difficult to guarantee the bending of length direction and the bending of width simultaneously, not easily obtain sufficient fit.So menses etc. are easily moved by the space produced in anal cleft portion, become the reason that h.d. spills to back direction.
In contrast, if the sanitary napkin 100 of the absorber of application present embodiment, so, gently mutually fit for it buttocks circular bend, and also moderately enter anal cleft portion, become so-called saddle camber shape or hyperbolic parabola shape, in anal cleft portion, also substantially can not produce gap, fit with it.Thus, realize near the point of release to the fabulous fitness that the seamless unoccupied place of buttocks cardinal principle abuts.Wearer's sleep stand up or walking time, also according to and follow the activity in skin face, therefore, gap can not expand, and continues good fit.
The size of the absorbent portion 3 of present embodiment has no particular limits, but if consider the use of sanitary napkin, because the sanitary napkin manufactured is different, also slightly different, but length direction length h
1(with reference to Fig. 1) is preferably 10 ~ 40mm, is more preferably 15 ~ 20mm.Width length h
2be preferably 5 ~ 20mm, be more preferably 10 ~ 15mm.In addition, spacer portion gap d, e are preferably 0.1 ~ 5.0mm, 0.5 ~ 2.0mm respectively.In addition, the shape etc. of leakage-proof socket 5 also has no particular limits, but, if consider above-mentioned good pliability and liquid diffusibility, then the thickness of face sheet 1 preferably have beyond leakage-proof socket 5 part more than 0.5mm thickness, in leakage-proof socket 5 part, be compressed into below 0.3mm, the thickness u(Fig. 2 in absorbent portion 3) preferably have beyond the leakage-proof socket 5 more than 2.0mm thickness, in leakage barriers 5 part, be compressed into below 1.0mm.In addition, the width h of the bottom land of leakage-proof socket
3be preferably 1.0mm ~ 2.0mm.In addition, in the present embodiment, thickness beyond leakage-proof socket 5 refers to: be 37mm × 37mm by size, thickness is that the acrylic panel of 3mm is placed on face sheet 1 or absorbent core 10, the thickness that the non-contacting Laser Displacement meter (laser head trade name: LK-G30, displacement meter trade name: LK-GD500) using KEYENCE company to manufacture measures, the thickness in leakage-proof socket 5 part refers to and directly measures fixed thickness with the non-contacting Laser Displacement that KEYENCE company manufactures.
Fig. 4 represents as other the absorbent portion 3 of embodiment (embodiment 2) of the present invention and the floor map of the relation of leakage-proof socket 5.Except the arrangement of absorbent portion 3, all the other are identical with the mode in the first embodiment, and do not represent face sheet 1, back-sheet 7, upside encirclement sheet material 21 and sidepiece sheet material 8 in figure, downside surrounds sheet material 22 pecked line and represents.In the present embodiment, absorbent portion 3 adopts arranging along grid (checker) consistent with adjacent absorbent portion 3 when direction projects to absorbent portion 3 in length and breadth.That is, adopt when multiple absorbent portion is projected on length direction and width, the configuration that its projection image is all overlapping in any one direction.So, length direction spacer portion m
1with width spacer portion m
2be consistent according to mode through on length direction and width, the width of sanitary napkin and the pliability of length direction improve, and can obtain better fit.In addition, absorbent portion adopts grid arrangement, and thus, the menses drained etc. are by length direction spacer portion m
1and width spacer portion m
2, transmit respectively along the length direction of product, width, therefore, the absorbability in each absorbent portion declines, liquid can be guided to different absorbent portions, more effectively can use absorber flexibly.
Fig. 5 is the floor map represented as the absorbent portion 3 of other embodiment (embodiment 3) in the present invention and the relation of leakage-proof socket 5.Except the arrangement of absorbent portion 3 and shape, all the other are identical with the mode in the first embodiment, and do not represent face sheet 1, back-sheet 7 in figure, upside surrounds sheet material 21 and sidepiece sheet material 8, downside surrounds sheet material 22 and represents with a pecked line.In the present embodiment, absorbent portion 3 is the hexagon extended in the longitudinal direction when overlooking, and adopts the honeycomb arrangement between above-mentioned hexagonal absorbent portion with spacer portion m.That is, adopt the configuration of multiple absorbent portion its projection image's overlap when width projects, like this, length direction spacer portion m
1with width spacer portion m
2be consistent in alongst through with width mode, the width of sanitary napkin and the pliability of length direction improve, and can obtain high fit.In addition, absorbent portion adopts honeycomb arrangement, easily causes the shape of the tilted direction beyond width and length direction to be out of shape.In addition, absorber spacer portion non-directional path, therefore, when draining a large amount of liquid a period, and because of liquid that the body movement of wearer is a large amount of be extruded from central authorities time, also can suppress flow direction width, prevent side leakage.
As the constituent material of absorbent portion 3, have no particular limits, fibrous material, porous plastid and their combination etc. can be used.As fibrous material, such as, can use the natural fibers such as wood pulp, Cotton Gossypii, fiber crops; The ultimate fibre of the synthetic resin formation of polyester resin, the polyvinyl alcohol resins etc. such as the polyolefin resin such as polyethylene and polypropylene, polyethylene terephthalate; Comprise the composite fibre of these resins two or more; The semisynthetic fibre such as acetate and staple fibre.When the fiber using synthetic resin to be formed, this fiber also can be the heat-shrinkable fibre of Yin Re and alteration of form.Such as, can be that Yin Re and fiber number increase but the fiber that shortens of fibre length and fiber number is almost constant but shape becomes coiled type, the fiber of the contraction in length from the appearance shared by fiber.As Porous, the condensation product (high water absorbency polymer and fibre deposition) etc. of sponge, non-woven fabrics, high water absorbency polymer can be used.
As the encirclement sheet material 2 being fixed with absorbent portion 3, use the material of the performance that there is suction and spread the liquid drained.That is, from encirclement sheet material 2 rapid sucking-off menses or leucorrhea from face sheet 1, and give the viewpoint of absorbent portion 3, preferred hydrophilic is higher than face sheet 1, and density is high.
Face sheet 1 preferably adopts liquid permeability and is formed with the material of skin contact softness.Such as, the non-woven fabrics using natural fibers such as Cotton Gossypiis as material can be used and using the non-woven fabrics of various synthetic fibers as material implementing hydrophilicity-imparting treatment.Back-sheet preferably adopts the sheet material of opaque liquid to be formed.Back-sheet 7 also can be the sheet material of water vapo(u)r transmission if desired.Specifically, in order to obtain sufficient water vapo(u)r transmission, preferably use: the thin film that the synthetic resin such as the polyethylene of the micropowder dispersion that the implants such as calcium carbonate are formed are made extends, and has minute aperture and forms porous film.As sidepiece sheet material 8, enumerate non-woven fabrics, thin-film sheet, paper etc.From the viewpoint of anti-leakage, preferably adopt and form sidepiece sheet material 8 as opaque liquid or the hydrophobic nonwoven of difficult permeability, the thin-film sheet etc. of anti-leakage.Above-mentioned sheet material both can be one piece, also can be more than two pieces that combine with functional sheet etc.
Absorbent commodity of the present invention is not limited to above-mentioned embodiment, can application the present invention in this absorbent commodity, such as disposable diaper, incontinence pad, incontinence lining etc.In addition, be not limited to menses, in addition, also effective for urine, leucorrhea, soft stool etc.In addition, except face sheet 1, absorbent portion 3, back-sheet 7 and sidepiece sheet material 8, also suitably can add parts according to purposes and function.In addition, condition in the face sheet 1 of the sanitary napkin of above-mentioned embodiment and the material of back-sheet 7, manufacture method, size of product etc. have no particular limits, the various materials used in common sanitary napkin etc. can be used in, for absorbent portion 3, can with reference to the item recorded in International Publication No. 09/081744 pamphlet.
Embodiment
According to following embodiment and comparative example, the present invention will be described in detail, but the present invention should not explain with being limited by this.
(embodiment 1)
Below, the absorbent core 10 shown in construction drawing 1 and add its sanitary napkin (test body 1).As face sheet, in upper-layer configured: be divided into polyethylene terephthalate's resin to core, the composite fibre that sheath part (sheath portion) is formed for polyvinyl resin carries out comb and parallel cotton fibers prior to spinning, hot blast is utilized to make the mutual heat fused of fiber and the screen cloth obtained, configure in lower floor: adopt the heat-shrinkable fiber that (side by side) constructs side by side to carry out comb and parallel cotton fibers prior to spinning and the screen cloth obtained to polyvinyl resin and acrylic resin, after adopting the method for heat-sealing both to be formed one, applying the hot-wind nonwoven cloth obtained by hot blast enforcement process, is quantitatively 74g/m
2.Surrounding the napkin (tissue paper) of sheet applications indissoluble aqueous, is quantitatively 16g/m
2.Absorbent portion adopts paper pulp fiber and high water absorbency polymer to form, and is shaped respectively according to following size.Back-sheet applies the macromolecule resin thin film of non-poisture-penetrability, is quantitatively 27g/m
2.The hot-wind nonwoven cloth of sidepiece sheet applications water proofing property is quantitatively 20g/m
2.In addition, absorbent portion is be transferred on the sheet material of encirclement by formed absorbent portion with surrounding sheet material, after surrounding sheet material, makes it by between a pair backer roll, at 3.0kgf/cm according to the mode of parcel absorbent portion is folding
2pressure contracting, each absorbent portion is pressurized is thus fixed on encirclement sheet material.
Each size > of <
h
1：20mm
h
2：10mm
h
3：1.0mm
e：2.0mm
d：1.5mm
u：2.0mm
The length x width of sanitary towel's entirety: 225mm × 97mm
(embodiment 1)
For above-described embodiment 1, except absorbent core not being separated into the one of absorbent portion, all the other make the sanitary napkin (test body c1) for comparing in the same way.Now, set according to the material of absorbent core and the size of thickness t and the entirety mode identical with test body 1.Fig. 8 is the schematic perspective view representing test body c1.
For above-mentioned test body 1 and c1, carry out following bulk flexibility determination test and absorber flexural rigidity determination test.In addition, the absorbent core of two test body is only used to carry out following infiltration rate test.Result is represented in following table B.
Table B
From above result, according to the present invention, realize high flexibility, high liquid-absorbent and returning property of liquid.In addition, according to the effect of leakage-proof socket, the liquid flow across it also effectively can be suppressed.
< is bulk flexibility determination test >
Use the device shown in Fig. 6, press down pressurization part 91, pressing placing is in the sanitary napkin test body of base 92.Now, sanitary napkin experiment body becomes tubular, and at pressurization part 91 and base 92, upper base and the part (guiding curve portion) of going to the bottom of the sanitary towel of contact tubular are arranged according to the mode abutted.Measure the peak load point of sanitary towel's bending when being forced into 60mm from 100mm, it can be used as bulk flexibility.Thereby, it is possible to assessment uses the load acting on the crotch of wearer during sanitary napkin, if below 400gf, then fabulous adherent feeling can be obtained.
< absorber flexural rigidity determination test >
Use the device shown in Fig. 7, press down increased pressure board 94, pressing placing is in the absorbent core test film 900 of base 95.The compartment of base every R be 40mm.The thickness of slab of increased pressure board is 2mm.Test film is, clips absorbent core by face sheet and back-sheet, considers the form of actual product, uses the test film of bonding all parts gently.Other sizes etc. are as described in above-described embodiment, comparative example.In the example shown, side is seen and is formed rectangle to its reduced representation, but in test film 1 of the present invention, is the composite be made up of with encirclement sheet material multiple absorbent portion.It is the rectangle of long 100mm, wide 75mm when the size of test film is overlooked.This increased pressure board is pressed down the pressing force (stress) during 8mm by mensuration.Its numerical value is less, represents that the performance of the flexibility as product length direction during actual product is better.If this numerical value is below 30gf, then can obtain fabulous adherent feeling.
< liquid infiltration rate determination test >
The test film that the test film that use uses in testing with above-mentioned absorber flexural rigidity is identical, 3g simulate blood of dripping respectively from face sheet side (horse blood).After dripping, visual confirmation simulate blood is soaked into inner absorbent core and is disappeared from face sheet.Time now, for primary drip and secondary dripping measure.If it is less than 6 seconds that this time (injects 3g) when first time, (reinject 3g, adds up to and inject 6g) is less than 15 seconds at twice, then can obtain fabulous adherent feeling.
< liquid back amount determination test >
The test film that the test film that use uses in testing with above-mentioned absorber flexural rigidity is identical, and use the liquid injection plate that the perforate footpath of liquid injection unit is 10mm, inject 3g horse blood.Using liquid from the absorbed time of napkin face now as the infiltration rate of 3g horse blood.After liquid injects one minute, the napkin having surveyed weight is placed on napkin face, in the above the metallic plate of placing 125g again, pressurizeing for 5 seconds, (pressure is 4.5g/cm
2), measure the liquid measure absorbed by napkin.In addition the liquid measure being attached to sanitary towel's contact surface of injection plate is also measured, using both aggregate value as top layer liquid back amount during injection 3g horse blood.Inject after three minutes from first time, re-inject 3g horse blood, in injection after one minute, repeat aforesaid operations, as infiltration rate during accumulative injection 6g horse blood and top layer liquid back amount.It is fewer that weight reduces, and suppresses the performance of liquid back amount better.If this numerical value is at below 120mg, then, when reality is used as product, fabulous dry feeling can be obtained.
< liquid-proof mobility >
For sanitary napkin test body 1 and c1, the central authorities when overlooking, suppose that daytime is with sanitary towel, once supplies excessive 9g simulate blood from its face sheet side.The state of the simulate blood that leakage-proof socket spreads along width is now crossed in visualization.Using with the moistening diffusion of the test film c1 made comparisons as A, poorer than it does not arrive perimeter as B.Using the peripheral sealing g of arrival sanitary towel that is significantly deteriorated as C.If with by the equal level (A) of the test film c1 made comparisons, then can obtain sufficient lateral leakage protection when reality uses.
Symbol description
1 face sheet
2 surround sheet material
3 absorbent portions
5 leakage-proof sockets
7 back-sheet
8 sidepiece sheet materials
G circumferential edges sheet material
10 absorbent cores
20 absorbent cores (comparative example)
100 sanitary napkins
200 sanitary napkins (comparative example)
Claims (12)
1. an absorbent commodity, is characterized in that, has:
Be configured at the face sheet of the liquid permeability of side, skin contact face, be configured at the back-sheet of the opaque liquid of side, non-skin contact face and the absorbent core between described two sheet materials,
Described absorbent core has length direction and the width orthogonal with this length direction,
This absorbent core has the multiple spacer portion extended along described width, the described spacer portion of described absorbent core is also formed along the length direction of this absorbent core, and described absorbent core by vertical and horizontal independently absorbent portion aggregation and formed, leakage-proof socket is formed at described absorbent core, described leakage-proof socket also alongst extends across the above spacer portion, is extruded together with described face sheet by from this face sheet side.
2. absorbent commodity as claimed in claim 1, is characterized in that:
Described leakage-proof socket extends along described length direction in the left and right sides of described absorbent core, the center direction of described leakage-proof socket along with the front and back end close to this absorbent core gradually to described absorbent core bends, the front-end and back-end of the described leakage-proof socket of left and right are consistent, and described leakage-proof socket is annularly continuous when overlooking.
3. absorbent commodity as claimed in claim 1 or 2, is characterized in that:
The besieged sheet material parcel of multiple described absorbent portion of described absorbent core, described absorbent portion and described encirclement sheet material are by pressure viscosity.
4. absorbent commodity as claimed in claim 3, is characterized in that:
The side, non-skin face of the non-telescoping of described absorbent core in described encirclement sheet material surrounds the side, skin contact face of sheet material, and the multiple respective independently described absorbent portion in its natural state mutual mode with the interval with regulation is arranged at direction in length and breadth.
5. absorbent commodity as claimed in claim 3, is characterized in that:
Described encirclement sheet material is hydrophilic sheet.
6. absorbent commodity as claimed in claim 3, is characterized in that:
The described spacer portion of described absorbent core is the region that there is not absorbent portion on the path of the leakage-proof socket extended along the length direction of absorbent core, have junction surface that described back-sheet engages with described encirclement sheet material and along described absorbent portion profile and to be formed and described absorbent portion and described encirclement sheet material are in the disengaged portion of disengaged condition.
7. absorbent commodity as claimed in claim 1 or 2, is characterized in that:
The rectangular shape grown in the longitudinal direction when described absorbent portion is and overlooks or long hex shape.
8. absorbent commodity as claimed in claim 1 or 2, is characterized in that:
The separation width of the described spacer portion of described absorbent core is 0.5 ~ 2.0mm.
9. absorbent commodity as claimed in claim 1 or 2, is characterized in that:
The aggregation of described absorbent portion is aggregation in zigzag configuration when overlooking.
10. absorbent commodity as claimed in claim 3, is characterized in that:
Described encirclement sheet material is the thin paper of poorly water-soluble.
11. absorbent commodities as claimed in claim 1 or 2, is characterized in that:
Described absorbent portion, the width in its cross section is rectangle.
12. absorbent commodities as claimed in claim 1 or 2, is characterized in that:
Described absorbent commodity is sanitary napkin.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-279866 | 2009-12-09 | ||
| JP2009279866 | 2009-12-09 | ||
| JP2010-273237 | 2010-12-08 | ||
| PCT/JP2010/071997 WO2011071070A1 (en) | 2009-12-09 | 2010-12-08 | Absorbent article |
| JP2010273237A JP5685430B2 (en) | 2009-12-09 | 2010-12-08 | Absorbent articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102740818A CN102740818A (en) | 2012-10-17 |
| CN102740818B true CN102740818B (en) | 2015-01-28 |
Family
ID=44145614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080062888.1A Expired - Fee Related CN102740818B (en) | 2009-12-09 | 2010-12-08 | Absorbent article |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5685430B2 (en) |
| KR (1) | KR101595408B1 (en) |
| CN (1) | CN102740818B (en) |
| TW (1) | TWI513453B (en) |
| WO (1) | WO2011071070A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6002483B2 (en) * | 2011-07-12 | 2016-10-05 | 花王株式会社 | Absorbent articles |
| USD720848S1 (en) | 2012-05-21 | 2015-01-06 | Butterfly Health, Inc. | Body liner for anal leakage |
| CA2863163C (en) * | 2012-01-31 | 2020-03-24 | Butterfly Health, Inc. | Devices and methods for treating accidental bowel leakage |
| US8591488B2 (en) | 2012-01-31 | 2013-11-26 | Butterfly Health, Inc. | Devices and methods for treating accidental bowel leakage |
| BR112014029833B1 (en) | 2012-05-29 | 2019-10-01 | 3M Innovative Properties Company | ABSORBENT ARTICLE UNDERSTANDING POLYMERIC AND INTERMEDIATE FOAM |
| JP6234046B2 (en) * | 2013-03-31 | 2017-11-22 | ユニ・チャーム株式会社 | Absorbent articles |
| JP5738449B2 (en) * | 2013-07-26 | 2015-06-24 | 花王株式会社 | Absorbent articles |
| JP2015029790A (en) * | 2013-08-05 | 2015-02-16 | 花王株式会社 | Absorbent article |
| JP6359393B2 (en) * | 2014-09-17 | 2018-07-18 | 花王株式会社 | Absorbent article manufacturing equipment |
| JP6138864B2 (en) * | 2015-06-30 | 2017-05-31 | ユニ・チャーム株式会社 | Absorbent articles |
| JP6141392B2 (en) * | 2015-11-12 | 2017-06-07 | ユニ・チャーム株式会社 | Absorbent articles |
| EP3167859B1 (en) * | 2015-11-16 | 2020-05-06 | The Procter and Gamble Company | Absorbent cores having material free areas |
| JP6279009B2 (en) * | 2016-04-28 | 2018-02-14 | ユニ・チャーム株式会社 | Absorbent articles |
| JP6502449B1 (en) * | 2017-09-29 | 2019-04-17 | 大王製紙株式会社 | Disposable wear article comprising an absorbent sheet and an absorbent sheet |
| JP7454405B2 (en) * | 2020-02-27 | 2024-03-22 | 日本製紙クレシア株式会社 | absorbent articles |
| JP7499661B2 (en) | 2020-09-16 | 2024-06-14 | 大王製紙株式会社 | Absorbent articles |
| CN112603659B (en) * | 2020-12-29 | 2024-03-29 | 露乐健康科技股份有限公司 | Absorbent core, absorbent core body and preparation method and application of absorbent core body |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6015608A (en) * | 1998-06-03 | 2000-01-18 | Koslow Technologies Corporation | Liquid absorbent pad with anti-gel-block laminate |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001190581A (en) * | 2000-01-12 | 2001-07-17 | Nippon Kyushutai Gijutsu Kenkyusho:Kk | Incontinence absorption pad |
| JP3934855B2 (en) * | 2000-05-31 | 2007-06-20 | ユニ・チャーム株式会社 | Disposable diapers |
| JP3959339B2 (en) | 2002-11-12 | 2007-08-15 | ユニ・チャーム株式会社 | Absorbent articles |
| JP3877702B2 (en) | 2003-04-23 | 2007-02-07 | ピジョン株式会社 | Absorbent products |
| JP4229869B2 (en) * | 2004-04-27 | 2009-02-25 | 花王株式会社 | Absorbent articles |
| JP2009072421A (en) * | 2007-09-21 | 2009-04-09 | Kao Corp | Absorbent article |
| JP5043591B2 (en) * | 2007-10-22 | 2012-10-10 | 花王株式会社 | Sanitary napkin |
| JP5331331B2 (en) * | 2007-12-06 | 2013-10-30 | 花王株式会社 | Elastic absorber |
| JP5508706B2 (en) | 2007-12-25 | 2014-06-04 | 花王株式会社 | Absorbent articles |
| JP6002483B2 (en) | 2011-07-12 | 2016-10-05 | 花王株式会社 | Absorbent articles |
-
2010
- 2010-12-08 KR KR1020127017496A patent/KR101595408B1/en not_active Expired - Fee Related
- 2010-12-08 JP JP2010273237A patent/JP5685430B2/en active Active
- 2010-12-08 CN CN201080062888.1A patent/CN102740818B/en not_active Expired - Fee Related
- 2010-12-08 WO PCT/JP2010/071997 patent/WO2011071070A1/en active Application Filing
- 2010-12-09 TW TW099143094A patent/TWI513453B/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6015608A (en) * | 1998-06-03 | 2000-01-18 | Koslow Technologies Corporation | Liquid absorbent pad with anti-gel-block laminate |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-340383A 2001.12.11 * |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201127350A (en) | 2011-08-16 |
| WO2011071070A1 (en) | 2011-06-16 |
| CN102740818A (en) | 2012-10-17 |
| JP5685430B2 (en) | 2015-03-18 |
| TWI513453B (en) | 2015-12-21 |
| KR20120094092A (en) | 2012-08-23 |
| JP2011139897A (en) | 2011-07-21 |
| KR101595408B1 (en) | 2016-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102740818B (en) | Absorbent article | |
| JP7623833B2 (en) | 3D Substrate | |
| KR102003105B1 (en) | Absorbent article | |
| CN1823695B (en) | Sanitary napkin | |
| US20190099305A1 (en) | Multi-component topsheets | |
| RU2560916C2 (en) | Absorbing element and absorbing product | |
| US20150250663A1 (en) | Three-dimensional substrates | |
| US20190231613A1 (en) | Multi-component topsheets | |
| JP5546441B2 (en) | Absorbent articles | |
| KR20010109192A (en) | An absorptive article | |
| CN102885676A (en) | Absorbent pad with non-symmetrical absorption amount and absorptive object comprising absorbent pad | |
| JP6316521B1 (en) | Absorbent articles | |
| JP2023158109A (en) | Absorbent article | |
| JP5946167B2 (en) | Absorbent articles | |
| WO2018029785A1 (en) | Absorbent article | |
| JP6886798B2 (en) | Absorbent article | |
| JP6620004B2 (en) | Absorbent articles | |
| CN202198749U (en) | Absorbent pad having asymmetric absorption amount and absorbent article including the same | |
| CN110139633A (en) | Absorbent commodity | |
| JP2021065412A (en) | Absorbent article | |
| JP2021171593A (en) | Absorbent article |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |