CN105263453B - Disposable diaper - Google Patents
Disposable diaper Download PDFInfo
- Publication number
- CN105263453B CN105263453B CN201480032304.4A CN201480032304A CN105263453B CN 105263453 B CN105263453 B CN 105263453B CN 201480032304 A CN201480032304 A CN 201480032304A CN 105263453 B CN105263453 B CN 105263453B
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- CN
- China
- Prior art keywords
- back sheet
- disposable diaper
- configuring area
- width direction
- product
- 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.)
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Links
- 239000006096 absorbing agent Substances 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000004049 embossing Methods 0.000 claims description 14
- 230000008859 change Effects 0.000 abstract description 4
- 239000000047 product Substances 0.000 description 146
- 210000002414 leg Anatomy 0.000 description 117
- 239000004745 nonwoven fabric Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 17
- 239000000758 substrate Substances 0.000 description 11
- 230000002745 absorbent Effects 0.000 description 10
- 239000002250 absorbent Substances 0.000 description 10
- 210000001217 buttock Anatomy 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 210000001124 body fluid Anatomy 0.000 description 6
- 239000010839 body fluid Substances 0.000 description 6
- 239000000470 constituent Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 244000309466 calf Species 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 239000004831 Hot glue Substances 0.000 description 3
- 210000001015 abdomen Anatomy 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000037213 diet Effects 0.000 description 2
- 235000005911 diet Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000004013 groin Anatomy 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
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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
- A61F13/51—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 outer layers of the pads
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
-
- 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
- A61F13/51—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 outer layers of the pads
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
- A61F13/51474—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure
- A61F13/51484—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure being inhomogeneous in the plane of the sheet, i.e. having zones of different properties or structures
-
- 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
- A61F13/51—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 outer layers of the pads
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
- A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
- A61F2013/51409—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film
- A61F2013/51411—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film being impervious to fluids but not for air or vapours
- A61F2013/51421—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film being impervious to fluids but not for air or vapours only in special places
Landscapes
- Health & Medical Sciences (AREA)
- Dermatology (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)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Disposable diaper (10) has the back sheet (60a) of the opaque liquid of a pair of of magic tape (90) and the non-skin contact surface side for being configured at absorber.The non-configuring area of back sheet (R2) that disposable diaper has the back sheet configuring area (R1) for being configured with back sheet (60a) and back sheet (60a) is not configured.The non-configuring area of back sheet (R2) is configured at least one of the anterior end (10F) of disposable diaper (10) and the rear end (10R) of disposable diaper.The elongation of the non-configuring area of back sheet (R2) is higher than the elongation of back sheet configuring area (R1).A kind of banding pattern disposable diaper for the waistline that wearer correspondingly can be properly covered with the change in size of the waistline of wearer can be obtained.
Description
Technical field
The present invention relates to a kind of disposable diapers.
Background technology
A kind of diaper of banding pattern is disclosed in patent document 1, which has：Absorber；Back sheet is configured at suction
The non-skin contact surface side of acceptor；And emulsion sheet, it is configured at the position that non-skin contact surface side is leaned on than back sheet.Back sheet
It is formed by the film of opaque liquid, emulsion sheet is formed by non-woven fabrics (referring for example to Fig. 2, paragraph 0024, paragraph of patent document 1
0038)。
The back sheet of opaque liquid is configured with from the anterior end of disposable diaper to rear end.Thus, even if in body
In the case that liquid self-priming acceptor leaks, can also it utilize back sheet that body fluid is inhibited to be leaked to the outer surface of disposable diaper.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2006-305104 bulletins
Invention content
Problems to be solved by the invention
But there are following problems for the disposable diaper.
When dressing the diaper of banding pattern, by disposable diaper configuration in the lower section of the lower crotch of wearer.Then, after utilization
Waist area surrounds the buttocks of wearer, and the magic tape extended from rear waist region is pulled to front waist region side, from
And diaper is fixed on to the waistline of wearer using magic tape.
It, can when magic tape being fixed on front waist region in the state that disposable diaper is not with the body fit of wearer
It disposable diaper can be deviated in wearing, and generating body liquid leaks.Thus, wearing auxiliary is usually in disposable diaper and dress
Magic tape is fixed on front waist region by the position of the waistline fitting of person.
But the waist size of wearer is not constant all the time, and may become larger because of diet of wearer etc..Thus,
When the waist size of wearer becomes larger, disposable diaper may be excessively closely sealed with body, and wearing feeling is caused to deteriorate.
In particular, when the waist size of wearer becomes larger, apply in the anterior end and rear end of disposable diaper
The power of oriented width direction drawing.In general, the flexibility for constituting the film of the opaque liquid of back sheet is less than the flexibility of non-woven fabrics.
The back sheet of patent document 1 configures in the range of from the anterior end of disposable diaper to rear end.Thus, in wearer
Waist size when becoming larger, the disposable diaper of patent document 1 possibly can not correspond to the variation of the body of wearer, cause primary
The anterior end and rear end of property diaper are tightened, and wearing feeling is made to deteriorate.
Then, the present invention is to be made in view of the project, its purpose is to provide it is a kind of can be with wearer's
The change in size of waistline correspondingly properly covers the disposable diaper of the banding pattern of the waistline of wearer.
The solution to the problem
The disposable diaper (disposable diaper 10) of the disclosure has：Front waist region (front waist region 20)；Waistline afterwards
Region (rear waist region 30)；Lower crotch region (lower crotch region 25), from the front waist region towards waistline area after described
In the product length direction (product length direction L) in domain between the front waist region and the rear waist region；It absorbs
Body (absorber 40) crosses over the lower crotch region, and at least one into the front waist region and the rear waist region
Person extends；A pair of of magic tape (magic tape 90), configuration waist area in the rear it is orthogonal with the product length direction
Direction, the outboard end i.e. in product width direction (product width direction W) are used for and front waist region fixation；And
The back sheet (back sheet 60a) of opaque liquid is configured at the non-skin contact surface side of the absorber, wherein described primary
Property diaper has in plan view：Back sheet configuring area (back sheet configuring area R1) is matched in the back sheet configuring area
It is equipped with the back sheet；And the non-configuring area of back sheet (the non-configuring area R2 of back sheet), it is located at and matches than the back sheet
It sets the position that region is leaned on the outside of the product length direction and the back sheet is not configured in the non-configuring area of the back sheet, it is described
The non-configuring area of back sheet is configured at the anterior end (the anterior end 10F of disposable diaper) of the disposable diaper and described
At least one of rear end (the rear end 10R of disposable diaper) of disposable diaper, the non-configuring area of back sheet
The elongation in domain is higher than the elongation of the back sheet configuring area.
The effect of invention
Using the disposable diaper of the banding pattern, can with the change in size of the waistline of wearer correspondingly properly
Cover the waistline of wearer.
Description of the drawings
Fig. 1 is the expansion top view of the disposable diaper of present embodiment.
Fig. 2 is the expansion top view of the disposable diaper of present embodiment.
Fig. 3 is the sectional view along the disposable diaper of F1-F1 lines shown in FIG. 1.
Fig. 4 is the sectional view along the disposable diaper of F2-F2 lines shown in FIG. 1.
Fig. 5 is the expansion top view of the disposable diaper of variation.
Specific implementation mode
Then, it is described with reference to the embodiment of the disposable diaper of the present invention.In addition, in the following figures, it is right
Same or analogous part marks same or analogous reference numeral.It is to be noted, however, that attached drawing is in schematical
Hold, ratio of each size etc. is different from the size of reality.
Thus reference should be made to the following description to judge specific size etc..In addition, also can include among the attached drawings
The different part of relationship, the ratio of mutual size.
Fig. 1 and Fig. 2 is the expansion top view of the disposable diaper 10 of present embodiment.Fig. 3 is along F1- shown in FIG. 1
The sectional view of the disposable diaper 10 of F1 lines.Fig. 4 is the sectional view along the disposable diaper 10 of F2-F2 lines shown in FIG. 1.Figure
1 and expansion top view shown in Fig. 2 be that the elastic component 81 of leg pars contractilis 75 and leg side rivel 80 is made to be elongated to composition one
The positive dough sheet 50 of secondary property diaper, flank 70 etc. do not form the figure until the state of fold.
Disposable diaper 10 is the disposable diaper of banding pattern.The diaper of banding pattern refers to the product width direction of front waist region
On outboard end and rear waist region product width direction on outboard end in using preceding do not engage and when in use profit
The diaper engaged with the fixed component of magic tape etc..
Disposable diaper 10 has front waist region 20, lower crotch region 25 and rear waist region 30.Front waist region 20
The part being in contact for the frontal cowl (abdominal portion) with wearer.In addition, rear waist region 30 is the low back with wearer
Enclose the part that portion's (back portion) is in contact.Lower crotch region 25 is between front waist region 20 and rear waist region 30.
In addition, in the present embodiment, it is long by product is known as towards the direction of rear waist region 30 from front waist region 20
Direction L is spent, product width direction W will be known as with the direction of product length direction L-orthogonal.
Disposable diaper 10 includes absorber 40, which crosses over lower crotch region 25, and from 25 direction of lower crotch region
At least either in front waist region 20 and rear waist region 30 extends.Absorber 40 includes absorbent core 40a and core covering
40b。
Absorbent core 40a is identical as the absorbent core of previous disposable diaper, can use comminution pulp, high-absorbable
Component, material well known to polymer etc. suitably constitute.Absorbent core 40a is coated by the core covering 40b of sheet.
Core covering 40b is the sheet material for covering absorbent core 40a.A part for at least skin surface side of core covering 40b is by having
The various fabric nonwoven cloths or cotton paper sheets for having liquid permeability are formed.Such as grammes per square metre about 10g/m can be used2~30g/m2Hot wind it is fine
Tie up non-woven fabrics, spun-bonded non-woven fabrics, SMS (spunbond-melt blown-spunbond) non-woven fabrics or grammes per square metre about 10g/m2~30g/m2Cotton paper sheets.
It is equipped with the positive dough sheet 50 of liquid permeability in the face side (skin contact surface side) of absorber 40.In addition, in absorber 40
Back side (non-skin contact surface side) be equipped with opaque liquid back sheet 60a.Overleaf (non-skin connects the back side of piece 60a
Contacting surface side) it is equipped with outer load 60.
The material of back sheet can for example use weight per unit area 10g/m2~30g/m2Opaque liquid polyethylene
Film.The material of outer load can be used by weight per unit area 10g/m2~35g/m2The formation such as polyethylene/polypropylene fiber
Spun-bonded non-woven fabrics, hot-wind nonwoven cloth and point bonded non-woven fabrics etc..The elongation of back sheet can be made less than composition disposable diaper
Other sheet materials (outer load 60, positive dough sheet 50 and flank 70) elongation.
At Fig. 1 and the depression angle of expansion top view shown in Fig. 2, disposable diaper has：Back sheet configuring area
R1 is configured with back sheet in back sheet configuring area R1；And the non-configuring area R2 of back sheet, it is located at back sheet configuring area
Domain leans on the position of (front side or rear side) on the outside of product length direction and back sheet is not configured in the non-configuring area R2 of the back sheet.
Different oblique lines is marked respectively to back sheet configuring area R1 and the non-configuring area R2 of back sheet to indicate that back sheet is matched in fig. 2
Set region R1 and the non-configuring area R2 of back sheet.
The non-configuring area R2 of back sheet is configured at the anterior end 10F of disposable diaper and the rear end of disposable diaper
10R.The non-configuring area R2 configurations of back sheet are in the entire product width direction of the anterior end 10F of disposable diaper.The back side
The non-configuring area R2 configurations of piece are in the entire product width direction of the rear end 10R of disposable diaper.
In addition, the non-configuring area R2 of back sheet both can be only fitted to the product width of the anterior end 10F of disposable diaper
In the region of a part on direction, it can also configure in the product width direction of the rear end 10R of disposable diaper
In the region of a part.The non-configuring area R2 of back sheet can also be configured at the anterior end 10F or disposable of disposable diaper
The rear end 10R of diaper.
The elongation of the non-configuring area of back sheet is more than the elongation of back sheet configuring area.Back sheet configuring area is stretched
Long rate is preferably 1.01 times~1.12 times.The elongation of the non-configuring area of back sheet is preferably 1.14 times~1.35 times.
In addition, the elongation of back sheet configuring area refers to the elongation degree of back sheet configuring area, the non-configuration of back sheet
The elongation in region refers to the elongation degree of the non-configuring area of back sheet, is provided in the following way.
The elongation of back sheet configuring area=(length of the back sheet configuring area after elongation) (back sides before elongation ÷
The length of piece configuring area)
The elongation of the non-configuring area of back sheet=(length of the non-configuring area of back sheet after elongation) ÷ is (before elongation
The length of the non-configuring area of back sheet)
In the present specification, the elongation of the elongation of back sheet configuring area and the non-configuring area of back sheet is for example set
To measure in the following way.
First, in the case where disposable diaper 10 is enclosed in packaging etc., disposable diaper 10 is taken out from the package.
Then, the elastic component 81 of leg pars contractilis 75 and leg side rivel 80 is made to be elongated to 50 He of positive dough sheet for constituting disposable diaper
Until flank 70 etc. does not form the state of fold, in this state, the length before the elongation of each sample is measured.Specifically,
Position (the distance between fixture corresponding position) addition label of aftermentioned a pair of of fixture is clamped, measures between the label
Distance.The distance is set as " length of the back sheet configuring area before elongation " and " the non-configuration of back sheet before elongation
The length in region ".
Then, it is cut into the sample of the back sheet configuring area R1 configured with back sheet.At this point, also including to be connect with back sheet
Cut to the outer load closed.Then, be cut into be not configured back sheet and positioned at than back sheet configuring area by front side or after
The sample of the non-configuring area R21 of back sheet of the position of side.Specifically, it is cut into outer load, positive dough sheet and flank 70, or
It is cut into outer load and positive dough sheet.Length (width) in the width direction of sample is set as 25mm, by the length direction of sample
On length be set as more than the length being clamped by aftermentioned fixture.Specifically, the length on the length direction of sample is set as
In 95mm or more.In addition, in the region configured with waistline pars contractilis, also cut comprising waistline pars contractilis.
Each sample is placed in experimental rig.Specifically, the length direction of each sample is clamped respectively using a pair of of fixture
On both ends.Then, a fixture configuration is configured another fixture in the downside of sample in the end of the upside of sample
End, be configured at downside end fixture connect counterweight.Make counterweight and is configured at the fixture of the end of the downside of sample
Total weight be 250g.Then, the position of the fixture of upside is fixed, and suspends sample, the fixture of downside and counterweight in midair.It is logical
It crosses and suspends each sample in midair, measure the distance between fixture when having extended static 3 seconds of each sample.The distance is set
For " length of the back sheet configuring area after elongation " and " length of the non-configuring area of back sheet after elongation ".
It using these measurement results, is calculated using the formula, so as to measure elongation.In addition, this explanation
The measurement of " length " in book is by using affine elastic tape measure (the tape portion for measuring Co. Ltd. system of Japan：With glass fibers
Dimension is base material, using polyvinyl chloride as coating) and measure length in a manner of so that it is extended along measurement object position.For 10
A sample carries out above-mentioned measurement under each state, and its average value is set as the length as measurement result above-mentioned.
Both side edges portion on the product width direction W of absorber 40 is respectively equipped with flank 70.Flank 70 crosses over preceding waistline
Region 20, lower crotch region 25 and rear waist region 30, and it is configured at the position than absorber 40 on the outside of product width direction.
The non-woven fabrics that flank 70 is laminated by one or more is formed.
It is formed with a pair of of leg opening part 35 in the flank 70 of disposable diaper 10.Leg opening part 35 is respectively arranged on once
Property diaper product width direction on both side ends, in the state that disposable diaper is worn by wearer along wearer
Calf circumference configuration part.Leg opening part 35 is towards the central concave in the product width direction of absorbent main body.
In addition, being respectively equipped with magic tape 90 in a pair of of flank 70.Magic tape 90 is in rear waist region 30 along product width
Direction W extends, and by being bonded to the non-skin contact layer of front waist region 20, keeps disposable diaper 10 and the body of wearer close
It closes.
Target portion 95 is configured at the non-skin contact layer in front waist region, is configured to solid respectively for a pair of of magic tape 90
It.
In the present embodiment, waistline maintaining part is constituted by front waist region 20, rear waist region 30 and magic tape 90.
The waistline maintaining part of rear waist region 30 is the portion extended from the region for the engaging portion for being equipped with magic tape 90 to product width direction
Point.The waistline maintaining part of front waist region 20 is the part extended from the region for being equipped with target portion 95 to product width direction.
It is equipped with a pair of of leg pars contractilis 75 in flank 70, which is configured at leans on than leg opening part 35
Position on the inside of product width direction, can be flexible along product length direction L.
It, both can be with as long as leg pars contractilis 75 is configured to enable leg opening part 35 flexible along product length direction
It configures, can also be configured relative to 35 inclined state of leg opening part with a part along leg opening part 35.
In addition, being configured with auxiliary telescopic portion 77 than position of the leg pars contractilis 75 on the outside of product width direction, this is auxiliary
Pars contractilis 77 is helped to be configured across lower crotch region 25 and 30 ground of rear waist region, and flexible along product length direction.Leg pars contractilis
75 and auxiliary telescopic portion 77 configure overleaf between piece 60a and outer load 60.
In addition, leg pars contractilis 75 and auxiliary telescopic portion 77 are to be shunk substantially along product length direction using rubber band etc.
Part, in addition in the state of not playing convergent force configure elastic member part other than concept.
Leg pars contractilis 75 is matched than position of the absorber 40 on the outside of product width direction along product length direction L
It sets, is configured to flexible along product length direction L.Leg pars contractilis 75 includes：1st leg pars contractilis 751 is located at than leg
Medial end 35I in the product width direction of portion opening portion 35 and the outboard end in the product width direction of absorber 40
Positions of the central point O2 on the inside of product width direction in the product width direction of 40T；And two the 2nd leg pars contractilis
752, it is located at the position on the outside of product width direction than central point O2.The elastic component of present embodiment includes polyurethane bullet
Property fiber, natural rubber.
Auxiliary telescopic portion 77 is formed by the elastic component of regulation radical (in the example in fig 1, by an elastic component).This
The elastic component of embodiment includes polyurethane elastomeric fiber, natural rubber.It is equipped with auxiliary telescopic portion by make flank 70
Region entirety equably shrinks and can make flank 70 along wearer with the buttocks heaved, therefore can make the region not
Tilt ground covering buttocks.
Under the elongation state of disposable diaper, the center O3 in the product length direction of leg pars contractilis 75 is located at than one
The positions of center O1 on the front in the product length direction of secondary property diaper.In addition, under the elongation state of disposable diaper, leg
Center O4 in the product length direction of portion opening portion 35 is located to be leaned on than the center O1 in the product length direction of disposable diaper
The position in front.
The anterior end 77F of auxiliary telescopic portion 77 is configured at the position that rear side is leaned on than the anterior end 75F of leg pars contractilis 75
It sets.Make the anterior end 75F regions contracts rearward than leg pars contractilis 75 using auxiliary telescopic portion 77 as a result,.Auxiliary is stretched
The rear end 77R in contracting portion 77 is configured at the position that rear side is leaned on than the rear end of leg pars contractilis.Thus, utilize auxiliary telescopic
Portion 77 makes the regions contract than leg pars contractilis 75 rearward.
The contraction flow region of ruffle shape made of being formed with and shunk using leg pars contractilis 75 and auxiliary telescopic portion 77 in flank 70.
The contraction flow region of ruffle shape and body can be made closely sealed using leg pars contractilis 75 and auxiliary telescopic portion 77.In addition, in leg opening
It is stretched less than leg positioned at the distance between the medial end 35I of the innermost position of product width direction and leg pars contractilis in portion
The distance between contracting portion and auxiliary telescopic portion.Utilize leg pars contractilis that can inhibit the medial end of leg opening part as a result,
It is involved in.In addition, by configuring auxiliary telescopic portion in the range from lower crotch to rear waist region, make being stretched configured with auxiliary for flank
The region entirety in contracting portion is easy to maintain the shape of expansion.
Moreover, the ruffle formed by leg pars contractilis 75 and auxiliary telescopic portion 77 stretches along product length direction, therefore pleat
Side (fold) extends along product width direction.The ruffle (fold), which becomes, to be hindered, so as to prevent the product of rear waist region
Width direction end is rolled on the inside of product width direction.
Disposable diaper 10 under natural conditions, the medial end 35I of leg opening part is located at flexible by the 2nd leg
Center in the product width direction of portion 752 and auxiliary telescopic portion 77 and along on the center line L2 of product length direction.According to
Such structure lifts the medial end of leg opening part by using leg pars contractilis and auxiliary telescopic portion, can prevent leg
The medial end of portion opening portion is involved in.Thereby, it is possible to make the medial end of leg opening part along corporally configuring.
The elongation of leg pars contractilis 75 is preferably 1.7 times~2.4 times.In the present embodiment, leg pars contractilis 75
Elongation is set as 1.9 times~2.2 times.In addition, elongation refers to the elongation degree of leg pars contractilis, advise in the following way
It is fixed.
The elongation of leg pars contractilis=(length under the elongation state of leg pars contractilis) ÷ (natures of leg pars contractilis
Length under state)
In addition, the elongation of auxiliary telescopic portion 77 is preferably 1.6 times~2.4 times.In addition, the elongation of auxiliary telescopic portion 77
Refer to the degree of the elongation of auxiliary telescopic portion, provides in the following way.
The elongation of auxiliary telescopic portion=(length under the elongation state of auxiliary telescopic portion) ÷ (natures of auxiliary telescopic portion
Length under state)
The elongation of leg pars contractilis and the elongation of auxiliary telescopic portion for example measure in the following way.
First, in the case where disposable diaper 10 is enclosed in packaging etc., disposable diaper 10 is taken out from the package.
Then, it is cut into the configuring area of leg pars contractilis.At this point, being also cut into leg comprising the outer load engaged with leg pars contractilis
The configuring area of portion's pars contractilis.The elongation for measuring the sample for the leg pars contractilis being cut into, to measure leg pars contractilis
Elongation.
Each sample is placed 60 minutes in 20 DEG C ± 2 DEG C, relative humidity in the environment of 60% ± 5%RH.Then, along
Telescopic direction measures the length of leg pars contractilis.The length is set as " length under natural conditions of leg pars contractilis ".
Then, it after the length in the desired region under measuring the state (i.e. nature) in telescopic direction, surveys
Sample is being extended to not observe in non-telescoping property on piece and generate because of elastic component by range estimation by amount from nature
Fold state until when length of the desired region in telescopic direction.The length is set as the " elongation of leg pars contractilis
Length under state " or " length of the auxiliary telescopic portion under elongation state ".
It is calculated by using these measurement results and using the formula, measures elongation.
In addition, the inside (on product width direction W center nearby) of a pair of of leg pars contractilis 75 be equipped with conduct along
The leg side rivel 80 for the offside rivel that product length direction L extends.Leg side rivel 80 is set to the product width of flank 70
Medial end on direction, to be configured at the flexible rivel of the erecting than leg pars contractilis 75 on the inside of product width direction.
Leg side rivel 80 is configured at the position on the inside of product width direction than leg pars contractilis 75.A pair of of leg side rivel is in product
Separate configuration in width direction.
Leg side rivel 80 includes the flank 70 as lateral plate and the elastic component 81 as retractility component.Flank 70
It as starting point is folded using the folding line along product length direction.Elastic component 81 configures being folded in lateral plate with elongation state
Part between, and it is flexible along product length direction.Flank 70 is configured to rear end from disposable diaper anterior end.
But side rivel is not the whole region in the product length direction of flank 70, and be provided at comprising product length side
To the region of the part in center.In addition, leg side rivel 80 can use known structure, specifically, can also
It is formed by flank 70 and other sheet materials.
In addition, being equipped with the waistline that can be stretched along product width direction between a pair of of magic tape in product width direction
Pars contractilis 85.Waistline pars contractilis 85 is shunk between magic tape along product width direction.
In the present embodiment, waistline pars contractilis 85 is formed by Stretchable sheet.The component for constituting waistline pars contractilis 85 does not have
There is particular determination, it is preferable to use the component that as thin as possible and bending stiffness is low, contracting rate is small.It is lower by using bending stiffness
Material constitutes waistline pars contractilis 85, and waistline pars contractilis 85 is bent readily along body, to apply to the body of wearer
Load can make waistline pars contractilis 85 along body fit.In addition, it is flexible to constitute waistline by using the smaller material of contracting
Portion 85 can inhibit in the case where disposable diaper is extended along product width direction disposable diaper in product length direction
It shrinks, disposable diaper can be inhibited to be pulled down to crotch side in the waistline of wearer.
In the present embodiment, it is 20g/m that waistline pars contractilis 85, which has used weight per unit area,2~45g/m2Retractility
Film.
Waistline pars contractilis 85 after 1.5 times~2.5 times of the length under being stretched to non-elongate state (nature),
It is adhered to outer load 60 using hot-melt adhesive or heat treatment etc..
In the present embodiment, the configuration of waistline pars contractilis 85 is between outer load 60 and back sheet 60a.But in core packet
Layer 40b is extended in the structure of the position than absorbent core 40a on the outside of product length direction, and waistline pars contractilis 85 can configure
Between core covering 40b and back sheet 60a or between core covering 40b and outer load 60.The position of waistline pars contractilis is not special
It limits.In addition, in the region that absorber is not configured, can be only fitted between flank 70 and back sheet 60a or flank 70 with it is outer
Between load 60.
In addition, the waistline pars contractilis of present embodiment is configured to flexible along product width direction, but waistline pars contractilis also may be used
To be configured to flexible along product width direction and product length direction.
Waistline pars contractilis 85 is in rear waist region 30 to cross over back sheet configuring area R1 and the non-configuring area of back sheet
The mode of R2 configures.In fig. 2, it to marking oblique line in the stretchable sheet configuring area R3 configured with waistline pars contractilis 85, indicates to stretch
Contracting piece configuring area R3.
The elongation of stretchable sheet configuring area R3 in the non-configuring area R2 of back sheet is more than the non-configuring area R2 of back sheet
The elongation in the interior region in addition to stretchable sheet configuring area R3.In the present embodiment, stretchable sheet configuring area R3 stretches
Long rate is set as 1.15 times~1.3 times.
The elongation of stretchable sheet configuring area refers to the elongation degree of stretchable sheet configuring area, is advised in the following way
It is fixed.
The elongation of stretchable sheet configuring area=(length under the elongation state of stretchable sheet configuring area) ÷ (match by stretchable sheet
Set the length under natural conditions in region)
In addition, the elongation of stretchable sheet configuring area R3 can utilize it is identical as the non-elongation of configuring area R2 of back sheet
Measurement method measure.
Magic tape 90 is installed on the region corresponding with rear waist region 30 of flank 70.Magic tape 90 includes：Substrate sheets
91, it is connected with flank 70；And hook tabs 92, substrate sheets 91 are fixed on, are combined as with front waist region equipped with multiple
Component combination member (not shown).Hook tabs 92 constitutes the engaging portion equipped with combination member.In above-mentioned rear waist region
Waistline maintaining part is the region extended from hook tabs 92 to product width direction.
Hook tabs 92 is fixed on substrate sheets 91, specifically, hook tabs 92 is engaged in substrate sheets 91.Hook tabs 92 and substrate sheets 91 it
Between engagement preferably carried out in a manner of more than the rigidity height to required degree for not making magic tape 90.Specifically, 92 He of hook tabs
Substrate sheets 91 are engaged preferably by hot-melt adhesive made of being intermittently coated with as dotted, linear or helical form.Separately
Outside, hook tabs 92 and substrate sheets 91 can also be engaged using heat-sealing etc..
Substrate sheets 91 are formed by the non-woven fabrics of one or more overlapping.Substrate sheets 91 can be used using spunbond (SB) or be spun
The non-woven fabrics that the production methods such as stick-melt blown-spunbond (SMS) are fabricated.Constitute the unit area weight of the non-woven fabrics of substrate sheets 91
It is 30g/m to measure (being summation unit area weight in the case of multiple)2~120g/m2, preferably 40g/m2~90g/m2。
Target portion 95 is set to the one side by non-skin-contacting side of the outer load 60 of front waist region.Target portion 95 is configured to
It hooks for the combination member of magic tape, is functioned as the ring including hook and the locking system of ring.Target portion can for example make
Use hot-wind nonwoven cloth.
Target portion 95 can for example use the fabric nonwoven cloth made of the thermoplastic synthetic resin fiber of polyolefins or
The thermoplastic synthetic resin film of polyolefins.In addition, tree can be synthesized by the thermoplasticity of polyolefins by being installed on the ring of target portion
Fat is formed.
In addition, target portion 95 can also using it is fluffy, by by non-woven fabrics a part be embossed by prevent non-woven fabrics table
The non-woven fabrics of face fluffing.
In addition, also can will indicate the installation of magic tape 90 by forming the outer load 60 of disposable diaper by non-woven fabrics
The pattern of position is printed on the face of the non-skin-contacting side of back sheet 60a or outer loads 60, or the sheet material configuration of pattern is existed
The non-skin-contacting side of back sheet 60a or outer loads 60, to set target portion.
In addition, rear side leg opening part 35R, with pass through the center in product width direction and parallel with product length direction
Straight line L1 between region area be more than front side leg opening part 35F, with by the center in product width direction and with
The area in the region between the parallel straight line L1 of product length direction.It is located at the product length direction than leg opening part as a result,
The flank of position of the center by the flank of the position of rear side than leaning on front side positioned at the product length direction center than leg opening part
It extends out on the outside of to product width direction, therefore the area that can cover the region of body is larger.
In addition, by the center in product width direction and the straight line L1 parallel with product length direction refers to by primary
Center in the product width direction of property diaper and the straight line L1 parallel with product length direction.The area is that leg is instigated to be stretched
The elastic component 81 of contracting portion 75 and leg side rivel 80 is elongated to can not be by visual observations to the front for constituting disposable diaper
The area under elongation state until the state of the fold of piece 50 and flank 70 etc..
The body of wearer is not front and back symmetrical, and the surface area of back side is more than the surface area of abdomen side.This is because
There are buttocks for the back laterally outside of wearer.In addition, in the state that wearer has worn disposable diaper, leg opening
Center O4 in the product length direction in portion 35 easily becomes opposite with the center in the product length direction of the in-leg of wearer
The position answered.For example, by the rear side leg opening of the position positioned at the product length direction center than leg opening part rearward
Portion is set as with the area in the region by the center in product width direction and between the straight line parallel with product length direction
First area.In addition, by the front side leg opening of the position positioned at the product length direction center than leg opening part on the front
Portion is set as with the area in the region by the center in product width direction and between the straight line parallel with product length direction
Second area.Consider the case where the first area situation identical as second area or the first area are less than second area.At this
In the case of a little, disposable diaper can not be configured in a manner of covering front and back asymmetrical body.Therefore, disposable diaper is being worn
The part of the back side of person becomes the state tightened, or becomes twisted state in the part of the abdomen side of wearer.
Additionally, it is contemplated that positioned at the flank 70 than the center O4 in the product length direction of leg opening part by the position of rear side
Lean on the flank 70 of the position of front side in product width direction with the center O4 in the product length direction than leg opening part
On the roughly the same situation in position.In this case, when leg opening part 35 becomes taut in the position of the back side of wearer
When tight state, in the state of being worn, the leg opening part 35 of rear waist region side tilts, it is possible to lead to wearer's
Buttocks exposes.In addition, since there is no that can cover the sufficient area of buttocks, therefore in wearing, rear waist region sometimes
Product width direction end be rolled into inside, and the buttocks that enables a wearer to exposes.
But the flank ratio positioned at the product length direction center than leg opening part by the position of rear side is located at than leg
Flank of the product length direction center of opening portion by the position of front side extends out to width direction outside.Therefore, it is possible to
The mode of the front and back asymmetrical body of covering configures disposable diaper, can be configured accordingly disposably with the body of wearer
Diaper.
It is formed in rear side leg opening part 35R multiple towards the protrusion 36 for becoming convex on the outside of product width direction.It is convex
Portion 36 is the front and back region than leg opening part to part outstanding on the outside of product width direction.Leg opening part 35 be and dress
The position that the calf circumference of person is in contact, to be easy the part entered towards the inside of disposable diaper 10.Thus it is preferred to leg opening
Portion 35 more broadly covers body, and the rear side leg opening part 35R that is arranged to being especially desired to covers body to a wide range.
By the way that protrusion 36 is arranged, increase the area of rear side leg opening part 35R parts, also, by will be outside the shape orientation of protrusion 36
Side is set as convex form, can cover buttocks to a wide range.
In addition, stress is easy to concentrate on rear side leg opening part 35R, especially it is easy to concentrate on rear side leg opening part
The rear portion of 35R, therefore preferably be set as further disperseing the shape for the pressure for being applied to skin in advance by forming protrusion 36
State.Specifically, being that stress is easy to concentrate and when wearing disposable diaper 10 close to the position of the cardinal extremity of magic tape 90
In the presence of position the case where forward lapping.It is therefore preferable that the rear portion of rear side leg opening part 35R is set as convex, so as to
Dispersion is applied to the pressure of skin.
In front side, leg opening part 35F is formed with as towards the recess portion for the shape being recessed on the inside of product width direction.It is recessed
Portion 37 is the part being recessed to product width direction inside than the front and back region of leg opening part.Since recess portion 37 is concavity,
Therefore the state of the groin along wearer is easily become.Therefore, flank 70 and leg pars contractilis 75 are more sticked on wearer
It closes, and lower crotch region 25 and the movement of wearer can be made independently steadily suitable from the front waist region of disposable diaper 10 20
Body.For example, even if produce make because of the action of the leg of wearer the width of absorber 40 narrow as act
In the case of, recess portion 37 can also continue to be bonded with groin, and the width of absorber 40 will not narrow and be able to maintain that wider
State.Protrusion 36 and recess portion 37 are other than mitigating to the pressure of skin, it is also desirable to along the body of wearer.
Leg opening part 35 is from product width direction outside towards the convex form on the inside of product width direction, disposable
At leg opening part 35 under the elongation state of diaper 10 positioned at the innermost position of product width direction medial end 35I with
The distance between leg pars contractilis 75 D2 be less than the distance of leg pars contractilis and auxiliary telescopic portion in product width direction, and
15mm or less.
Consider the medial end 35I and leg pars contractilis 75 of the leg opening part 35 under the elongation state of disposable diaper 10
The distance between be more than 15mm the case where.In this case, the convergent force generated by leg pars contractilis 75 can not be applied to leg
The medial end of opening portion 35, it is possible to lead to not that leg opening part 35 is made properly to shrink using leg pars contractilis 75.Separately
Outside, the medial end 35I of leg opening part 35 is by the clamping of the leg of wearer and close with wearer in the state of being worn
The part of conjunction.By the distance between medial end 35I and leg pars contractilis for making leg opening part 35 in 15mm hereinafter, can
At least make the portion retracts closely sealed with wearer of leg opening part, and is configured along the calf circumference of wearer.
Then, illustrate the wearing state of the disposable diaper constituted in this way.When dressing disposable diaper 10, by magic tape
90 hook tabs 92 is bonded to target portion 95, to keep disposable diaper in the waistline of wearer.At this point, being configured at disposable urine
The non-configuring area R2 of back sheet of the anterior end 10F of cloth is configured at the abdomen of wearer.In addition, being configured at disposable diaper
The non-configuring area R2 of back sheet of rear end 10R is configured at the back of wearer.
In general, the waist size of wearer is not constant all the time, become larger sometimes because of diet etc..In the waistline ruler of wearer
The very little region and body when becoming larger, extended to product width direction occasionally there are the self-thread gluing band of disposable diaper is excessively closely sealed
Situation.In particular, when the waist size of wearer becomes larger, the stronger journey of anterior end and rear end of disposable diaper sometimes
It spends closely sealed.At this point, the anterior end and rear end in disposable diaper apply the power of oriented product width direction drawing.
It is configured with the non-configuring area R2 of back sheet in the anterior end 10F and rear end 10R of disposable diaper.Back sheet
The elongation of non-configuring area R2 is more than the elongation of back sheet configuring area R1, therefore the non-configuring area R2 of back sheet compares the back side
Piece configuring area R1 is easy elongation.Become larger in the waist size of wearer and in the anterior end and rear side end of disposable diaper
When portion's effect has the power pulled in the width direction, the anterior end and rear end of disposable diaper are stretched along product width direction
It is long.
For example, back sheet configuring area R1 is formed by the film of non-elongate, it is difficult when effect has the power pulled along width side
With elongation.That is, back sheet configuring area R1 is acting on the power in width direction because of the variation of the waist size of wearer
Under state and in the state of not acting on the power in width direction, length is substantially constant.On the other hand, the non-configuration of back sheet
Region R2 is when acting on the power in width direction because of the variation of the waist size of wearer, than not acted in width direction
Power state elongation, and become large-sized than designed.Thereby, it is possible to the variations of the waist size according to wearer to make once
The change in size of the anterior end and rear end 10R of property diaper.Thereby, it is possible to the variation phases of the size of the waistline with wearer
Accordingly properly cover the waistline of wearer.The anterior end and rear end that can inhibit disposable diaper are tightened, and are inhibited
The deterioration of wearing feeling.
In addition, the anterior end 10F and rear end 10R of disposable diaper in the state of wearing be easy directly with dress
The skin contact of person, and it is closely sealed with the body of wearer.The anterior end 10F and rear end 10R of disposable diaper are laminated with
Outer load 60, positive dough sheet 50.In general, the flexibility of the non-woven fabrics of the outer load 60 of composition, positive dough sheet 50 is higher than composition back sheet
The flexibility of film.Due to the flexibility raising for the part that the skin with wearer is in direct contact, therefore, it is possible to reduce to skin
Stimulation, wearing feeling improve.In addition, the film for constituting back sheet is not configured, therefore also penetrability can be made good, and reduced to skin
Stimulation.
Back sheet configuring area R1 extends to the positions rearward rear end 40R than absorber 40.Even if existing as a result,
In the case of the rear end 40R leakages of body fluid self-priming acceptor 40, also the back sheet 60a of opaque liquid can be utilized to inhibit body fluid
Outside 60 side of load leakage.
In addition, back sheet configuring area R1 extends to the product length direction center O5 of the hook tabs 92 than magic tape 90 rearward
The position of side.In the state of having dressed disposable diaper, the hook tabs 92 of self-thread gluing band is along the region that product width direction extends
It is closely sealed with the body of wearer.The product length direction center O5 that back sheet configuring area extends to the hook tabs 92 than magic tape is leaned on
The position at rear.Therefore, in the region closely sealed with the body of wearer, in product length direction the region of more than half with
The body of wearer is closely sealed.The rear of absorber can be inhibited to leak into using the non-configuring area R2 of the back sheet of rear waist region
Diffusion of body fluids, and prevent the body fluid reach disposable diaper rear end.
In addition, back sheet configuring area extends preferably into the position of the rear end 5mm or more rearward than absorber, more
Extend preferably into the position of the rear end 10mm or more rearward than absorber.Back sheet configuring area extends to magic tape
The rear of the product length direction center O5 of hook tabs 92.In addition, from the waistline for ensuring to be held in wearer using magic tape
Region viewpoint and from the viewpoint of ensuring region that magic tape and back sheet configuring area are overlapped in the longitudinal direction,
The product length direction length of the hook tabs 92 of magic tape is preferably in 20mm or more, more preferably in 25mm or more.
The waistline pars contractilis 85 for constituting the telescopic sheet at least to stretch along product width direction crosses over the back of the body in rear waist region
Configure to the dough sheet configuring area R1 and non-configuring area R2 of back sheet.The rear end of waistline pars contractilis 85 is located at disposable diaper
Rear end 10R position, the anterior end of waistline pars contractilis 85 is located in back sheet configuring area R1.
Since waistline pars contractilis 85 is located in back sheet configuring area R1, therefore, it is possible to make the back side for preventing leakage of body fluids
Piece is more closely sealed with body, and can improve antiseep effect.In addition, waistline pars contractilis 85 more than back sheet configuring area R1 and
The rear end 10R of disposable diaper is reached, therefore is more than region (the non-configuring area of back sheet of back sheet configuring area R1
It R2) also can be closely sealed with the body of wearer.
In addition, when dressing disposable diaper, enable a wearer to lie on the disposable diaper of unfolded state, by rear waistline area
The magic tape in domain is pulled to width direction outside, and fixed magic tape.At this point, the back side in the rear waist region of disposable diaper
The non-configuring area R2 of piece, particularly act on the power pulled on the outside of oriented width direction in the rear end 10R of disposable diaper.Easily
In keeping the rear end 10R of the non-configuring area R2 of back sheet, particularly disposable diaper loose along product using waistline pars contractilis 85
It spends direction to extend, operability when wearing improves.
In addition, by being equipped with waistline pars contractilis 85, the state in the waistline position that waistline maintaining part is maintained to wearer
Under (wearing effect), waistline can be utilized by being located at the stickiness in the region of the position than waistline pars contractilis 85 on the outside of length direction
The contraction of pars contractilis 85 and improve, be easy to maintain disposable diaper into the waistline position of wearer.
Alternatively, it is also possible to be that waistline pars contractilis 85 is not only set to rear waist region, it is also set to front waist region.Set on Attacking Midfielder
The waistline pars contractilis 85 for enclosing region crosses over back sheet configuring area R1 and the non-configuring area of back sheet preferably in front waist region
Configure to R2.Specifically, it is preferable that the anterior end of waistline pars contractilis 85 is located at the anterior end 10F of disposable diaper
Position, the rear end of waistline pars contractilis 85 is located in back sheet configuring area R1.
Waistline pars contractilis 85 as telescopic sheet is extended to than back sheet configuring area on the outside of product width direction
Position.It is easy to using waistline pars contractilis 85 along product width side than region of the back sheet configuring area on the outside of product width direction
To stretching.As a result, in wearing, it is easy the region on the outside of product width direction will to be leaned on to product width than back sheet configuring area
Drawing on the outside of direction, operability when wearing improve.
The non-configuring area R2 of back sheet is set to the rear end of the anterior end 10F and disposable diaper of disposable diaper
10R.The anterior end 10F and disposable diaper of disposable diaper rear end 10R this both ends be equipped with elongation compared with
The non-configuring area R2 of high back sheet.As a result, when effect has along the power that product width direction pulls, the front side of disposable diaper
End 10F and this both ends the rear end 10R of disposable diaper are easy to stretch.
Length L12 in the product length direction of the non-configuring area of back sheet in rear waist region is more than front waist region
In the non-configuring area of back sheet product length direction on length L11 (with reference to Fig. 2).It is configured with thread gluing in rear waist region
Band, therefore the non-configuring area R2 effects of back sheet in rear waist region have more than the non-configuring area of the back sheet of front waist region
To the power pulled on the outside of product width direction.Due to the product length direction of the non-configuring area of back sheet in rear waist region
On length L12 be set to longer, therefore can ensure the region extended in rear waist region to a wide range.
Flank as lateral plate configures in the whole region in the product length direction of disposable diaper.The folding of flank
Part do not engage in the anterior end of disposable diaper and the rear end of disposable diaper each other.In the side of folding
When being engaged between the wing, which is hardened, and the skin sense of touch deterioration of the part or the part is made to be difficult to stretch.
But in the rear end of the anterior end of disposable diaper and disposable diaper, flank does not engage each other.
Therefore, it is possible to inhibit the anterior end of disposable diaper and the rear end of disposable diaper to be hardened, it can be ensured that flexibility.Separately
Outside, the anterior end of disposable diaper and the rear end of disposable diaper can be inhibited to become difficult to stretch.
The embossing rate of outer load is 5% or more and below 15%.When the embossing rate of outer load is less than 5%, for stretching
With superiority, still, easy tod produce in terms of as the anti-fluffing needed for outer load bad.Fluffing is also broken with outer load
Damage etc. is related, to which embossing rate is not preferred in terms of intensity below 5%.On the other hand, the embossing rate of outer load is more than 15%
When, the fiber of non-woven fabric plate declines relative to the degree of freedom of drawing, causes as being difficult to extend and (do not extend substantially) sheet material.Separately
Outside, embossing rate said here refers to being formed with ratio of the area relative to entire area of embossing.
In addition, being formed with low rigid portion interiorly in rear end of the absorber 40 comprising absorber, the low rigid portion is not
It is less than the absorption of other part in the presence of the weight per unit area of the absorbent cores or the low rigid portion absorbent cores that constitute absorber
The weight per unit area of core.It is equipped with low rigid portion, the flexibility of the rear end of absorber by the rear end in absorber
Improve, rear waist region side by it is close to front waist region layback when, the rear end of absorber is also easy to open up in the width direction
It opens.
(3) manufacturing method of disposable diaper
Then, illustrate an example of the manufacturing method of the disposable diaper of present embodiment.In addition, in the present embodiment
Unaccounted process can use existing method.In addition, it is sub as an example of manufacturing method described below, it can also utilize it
His manufacturing method manufactures disposable diaper above-mentioned.The manufacturing method of disposable diaper includes at least constituent part and forms work
Sequence, constituent part load process, leg enclose formation process and cut process.
In constituent part formation process, the constituent part for constituting disposable diaper is formed.Specifically, for example, stacking
Absorbing material and form absorber 40.
In constituent part loads process, in the retractility knitted on piece mounting and constitute leg pars contractilis 75 for constituting back sheet
Piece, the others such as piece of knitting for constituting positive dough sheet knit the compositions such as piece, leakage prevention sheet, absorber, leg pars contractilis 75, auxiliary telescopic portion 77
The constituent part of disposable diaper 10.
Leg enclose formation process cuts positive dough sheet 50, outer load 60 and back sheet 60a.Auxiliary telescopic portion as a result,
77 anterior end 77F is cut, and forms the leg opening part 35 for being configured at the calf circumference of wearer.
It is in cutting process, the non-individual body configured with positive dough sheet 50, back sheet 60a, absorber 40 etc. is wide along product
Degree direction W is cut into the size of a product.Disposable diaper 10 is manufactured as a result,.
(4) other embodiments
As described above, embodiment through the invention discloses present disclosure, still, composition should not be construed
The discussion of the part of the disclosure and attached drawing are for limiting the present invention.To those skilled in the art, from the disclosure energy
Enough clearly various replacement embodiments, embodiment and application technology.
Then, illustrate the disposable diaper 10A of variation.In addition, in the disposable diaper 10A of variation, pair with it is real
The identical structure of disposable diaper for applying mode marks identical reference numeral and omits the description.
Fig. 5 is the expansion top view of the disposable diaper 10A of variation.The disposable diaper 10A of variation is configured to side
The elongation of the wing 70 is substantially same with the elongation of back sheet low.Overleaf in the non-configuring area R2 of piece, it is Chong Die with flank 70
Region be difficult to identically as back sheet configuring area R1 along product width direction extend.
The positive dough sheet of the disposable diaper of variation can be used alternately has high unit plane in product width direction
The non-woven fabric plate in product weight portion and low weight per unit area portion.By using such positive dough sheet, power concentrates on high unit area
The boundary in weight portion and low weight per unit area portion contributes to the elongation at extensibility position, promotes elongation.
The disposable diaper of variation is configured to region (side not Chong Die with flank 70 in the non-configuring area R2 of overleaf piece
Region between the wing 70) R4 elongation be higher than back sheet configuring area R1 elongation.Become larger in the waist size of wearer
When, using variation the rear end of disposable diaper can also extended in the width direction, inhibit the front side of disposable diaper
End and rear end are tightened.
The composition positive dough sheet of the variation or the non-woven fabric plate of outer load are by without the hot melt generated by point, line embossing
The sheet material or point of contact, the sheet material that the area occupation ratio of line embossing is 5%~15% are formed.The area occupation ratio of embossing is to be formed with embossing
Area relative to sheet material entirety area ratio.For example, the whole area relative to outer load, is the formation of outer load
There is the area of the part of embossing.
In addition, overleaf in the non-configuring area R2 of piece, the not region Chong Die with the flank 70 (area between flank 70 is constituted
Domain) R4 sheet material between engagement (specifically, positive dough sheet, back sheet, telescopic sheet) it is viscous using what is be intermittently coated with
Agent (hot-melt adhesive) is connect to fix.It is the state being coated with planar to be intermittently coated with not, and refers to linear bonding agent one
The spiral-shaped equal state being coated on one side of side description S-shaped shape.The junction between sheet material is reduced as a result, and engagement will not interfere
The mutual elongation of sheet material of each extensibility.
In addition, in other variations, back sheet configuring area can both be configured at the rear end than absorber and lean on
The position in front can also be the product length direction center position on the front being configured at than hook tabs 92.
In other variations, the outboard end in the product length direction of telescopic sheet can also be configured at than primary
The anterior end of property diaper position rearward is configured at rear end position on the front than disposable diaper.Moreover,
Medial end in the product length direction of telescopic sheet can also configure outside overleaf piece configuring area.
In other variations, telescopic sheet can also be configured in the product width direction than back sheet configuring area
Position of the outboard end on the inside of the product width direction.In addition, outboard end in the product width direction of telescopic sheet and
Outboard end in the product width direction of back sheet configuring area can also be consistent in product width direction.
In other variations, back sheet configuring area can both be configured at the anterior end of disposable diaper, also may be used
To be configured at the rear end of disposable diaper.
In other variations, the length in the product length direction of the non-configuring area of back sheet in rear waist region
Both can be equal length with the length in the product length direction of the non-configuring area of back sheet in front waist region, it can also
Less than the length in the product length direction of the non-configuring area of back sheet in front waist region.
In other variations, flank can also be configured at the part in the product length direction of disposable diaper
Region.In addition, the part of flank being folded each other can also be in the anterior end and disposable diaper of disposable diaper
Rear end engagement.
In other variations, embossing can not also be formed in outer load.In addition, the embossing rate of outer load both can be low
In 8%, 16% can also be more than.
(5) embodiment
The elongation of back sheet configuring area is measured using the sample of the Examples 1 to 4 of the disposable diaper of present embodiment
The elongation of rate and the non-configuring area of back sheet.
Using the sample of back sheet configuring area R1, embodiment 3 and embodiment 4 use back sheet for embodiment 1 and embodiment 2
The sample of non-configuring area R2.
Each sample is used with by the center in product width direction and the straight line L1 parallel with product length direction is
Center, the symmetrical region on the outside of product width direction.The width direction of each sample is the product length direction of disposable diaper,
The length direction of each sample is the product width direction of disposable diaper.In addition, the length on the length direction of each sample is than table 1
" length before elongation " long 20mm.Each end on the length direction of each sample reserves the clamping that 10mm is set as fixture respectively
Amount.
The sample of embodiment 1 is the back sheet configuring area positioned at the position than absorber 40 rearward and is sample
The sample in the both ends region Chong Die with flank on length direction.As a result, the sample of embodiment 1 have be laminated with positive dough sheet,
Waistline pars contractilis, back sheet and outer load part and be laminated with positive dough sheet, waistline pars contractilis, flank, back sheet and outer
The part of load.
The sample of embodiment 2 is the back sheet configuring area positioned at the position than absorber 40 rearward and is an offside
The sample in region between the wing.As a result, the sample of embodiment 2 be laminated with positive dough sheet, waistline pars contractilis, back sheet and
Outer load.
The sample of embodiment 3 is the stretchable sheet configuring area R3 in the non-configuring area of back sheet of rear waist region and is
Sample in the region Chong Die with flank of both ends on the length direction of sample.Thus, the sample of embodiment 3, which has, to be laminated with
Positive dough sheet, waistline pars contractilis and outer load part and be laminated with the portion of positive dough sheet, waistline pars contractilis, flank and outer load
Point.
The sample of embodiment 4 is the stretchable sheet configuring area R3 in the non-configuring area of back sheet of rear waist region and is
The sample in region between a pair of of flank.The sample of embodiment 4 is laminated with positive dough sheet, waistline pars contractilis and exterior as a result,
Piece.
The measurement result of the elongation of each sample is indicated in table 1.
Table 1
Japanese Patent Application of the application based on Japanese publication filed in 4 days June in 2013 2013-118176 requires preferential
Power, and quote whole contents recorded in the Japanese publication.
Certainly, the present invention includes the various embodiments etc. that do not record herein.Thus, protection scope of the present invention is only by root
It is limited according to the above-mentioned technical characteristic for illustrating claims that reasonable generalization goes out.
Industrial availability
The present application can be applied to have absorber, the non-skin contact surface side for being configured at absorber back sheet,
It is configured at the diaper by the banding pattern of the emulsion sheet of the position of non-skin contact surface side than back sheet.
Reference sign
10, disposable diaper；20, front waist region；25, lower crotch region；30, rear waist region；35, leg opening part；
35I, medial end；35F, front side leg opening part；35R, rear side leg opening part；40, absorber；40a, absorbent core；
40b, core covering；50, positive dough sheet；60, outer load；60a, back sheet；70, flank (lateral plate)；75, leg pars contractilis；77, it assists
Pars contractilis；80, leg side rivel；81, elastic component；85, waistline pars contractilis；90, magic tape；91, substrate sheets；92, hook tabs (knot
Conjunction portion)；95, target portion；R1, back sheet configuring area；The non-configuring area of R2, back sheet；L, product length direction；W, product is wide
Spend direction.
Claims (9)
1. a kind of disposable diaper, has：
Front waist region；
Rear waist region；
Lower crotch region, between the front waist region and the rear waist region；
Product length direction extends from the front waist region towards the rear waist region；
Product width direction, it is orthogonal with the product length direction；
Absorber crosses over the lower crotch region, and at least one of the front waist region and the rear waist region
Extend；
A pair of of magic tape, the outboard end being configured in the product width direction of the rear waist region, be used for it is described before
Waist area combines；
The back sheet of opaque liquid is configured at the non-skin contact surface side of the absorber；And
A pair of of leg opening part, the central concave towards in the product width direction, wherein
The disposable diaper has in plan view：Back sheet configuring area configures in the back sheet configuring area
State back sheet；And the non-configuring area of back sheet, it is located at than the back sheet configuring area outside the product length direction
The position of side and the back sheet is not configured in the non-configuring area of the back sheet,
The non-configuring area of back sheet is configured at the rear side of the anterior end and the disposable diaper of the disposable diaper
At least one of end,
The elongation of the non-configuring area of back sheet is more than the elongation of the back sheet configuring area,
The pair of leg opening part has the position positioned at the product length direction center than the leg opening part rearward
Rear side leg opening part and position positioned at the product length direction center than the leg opening part on the front front side leg
Portion opening portion,
The rear side leg opening part extends to the position by the outside of the product width direction than the front side leg opening part
It sets,
Side leg opening part is formed with the protrusion for becoming convex towards the outside of the product width direction in the rear,
There is the magic tape engaging portion, the engaging portion to be configured with the component for being used for being combined with the front waist region,
The back sheet configuring area extends to the rear end than the absorber rearward and than described in the engaging portion
The position of product length direction center rearward.
2. disposable diaper according to claim 1, wherein
The disposable diaper has telescopic sheet, and the telescopic sheet is at least flexible along the product width direction,
Outboard end in the product length direction of the telescopic sheet is configured at the front side of the disposable diaper
At least one of the rear end of end and the disposable diaper,
Medial end in the product length direction of the telescopic sheet configures in the back sheet configuring area,
The lateral border of the telescopic sheet extends to the position by the outside of product width direction than the back sheet configuring area,
The telescopic sheet is located at the position by the inside of the product width direction than the magic tape, with the magic tape point
It opens.
3. disposable diaper according to claim 2, wherein
The telescopic sheet extends to the position on the outside of the product width direction than the back sheet configuring area.
4. disposable diaper described in any one of claim 1 to 3, wherein
The non-configuring area of back sheet is configured at the anterior end of the disposable diaper and the disposable diaper
The rear end,
It is equipped with the target portion of the engaging portion fixation for the magic tape in the front waist region,
The anterior end of the back sheet configuring area is located at the position that front side is leaned on than the anterior end of the target portion.
5. disposable diaper according to claim 4, wherein
Length in the product length direction of the non-configuring area of the back sheet in the rear waist region is more than described
Length in the product length direction of the non-configuring area of the back sheet in front waist region.
6. disposable diaper described in any one of claim 1 to 3, wherein
There is the disposable diaper offside rivel, the offside rivel to have erecting, be configured at the skin of the absorber
Contact surface side,
The pair of side rivel separate configuration in the product width direction,
The pair of side rivel is respectively provided with the lateral plate folded using the folding line along the product length direction as starting point and matched
The retractility component between part of the lateral plate being folded is set,
The lateral plate is configured to the rear end from the anterior end of the disposable diaper,
The part of the lateral plate being folded is each other in the anterior end of the disposable diaper and described disposable
The rear end of diaper does not engage.
7. disposable diaper described in any one of claim 1 to 3, wherein
The disposable diaper includes outer load, which is configured at the non-skin contact surface side of the back sheet,
The embossing rate of the outer load is 5% or more and below 15%.
8. disposable diaper described in any one of claim 1 to 3, wherein
It is equipped with the target portion of the engaging portion fixation for the magic tape in the front waist region,
The lateral border of the back sheet configuring area is located at the lateral border than the leg opening part by the product width direction
Inside and be than the target portion lateral border by the product width direction outside position.
9. disposable diaper described in any one of claim 1 to 3, wherein
Than the leg opening part by the product width direction inside position be equipped with it is multiple can be long in the product
The leg pars contractilis stretched on direction is spent,
Multiple leg pars contractilis are configured at the back sheet configuring area, and are not configured in the non-configuring area of the back sheet
Domain.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-118176 | 2013-06-04 | ||
| JP2013118176A JP6212289B2 (en) | 2013-06-04 | 2013-06-04 | Disposable diapers |
| PCT/JP2014/063680 WO2014196379A1 (en) | 2013-06-04 | 2014-05-23 | Disposable diaper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105263453A CN105263453A (en) | 2016-01-20 |
| CN105263453B true CN105263453B (en) | 2018-10-19 |
Family
ID=52008030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480032304.4A Active CN105263453B (en) | 2013-06-04 | 2014-05-23 | Disposable diaper |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6212289B2 (en) |
| CN (1) | CN105263453B (en) |
| AU (1) | AU2014276039B2 (en) |
| TW (1) | TWI619478B (en) |
| WO (1) | WO2014196379A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6382102B2 (en) * | 2014-12-26 | 2018-08-29 | ユニ・チャーム株式会社 | Absorbent articles |
| JP6382101B2 (en) * | 2014-12-26 | 2018-08-29 | ユニ・チャーム株式会社 | Method for manufacturing absorbent article |
| JP5922288B1 (en) * | 2015-08-19 | 2016-05-24 | 株式会社アルバ | Disposable wearing article and method for producing disposable wearing article |
| JP6740085B2 (en) * | 2016-10-31 | 2020-08-12 | ユニ・チャーム株式会社 | Tape diaper |
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| CN1166132A (en) * | 1995-10-05 | 1997-11-26 | 花王株式会社 | Disposable diaper |
| EP1226802A2 (en) * | 2001-01-29 | 2002-07-31 | Kao Corporation | Disposable diaper |
| JP2004337388A (en) * | 2003-05-16 | 2004-12-02 | Kao Corp | Absorbent articles |
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| CN101198305A (en) * | 2005-06-15 | 2008-06-11 | 大王制纸株式会社 | Disposable diaper |
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| JP2011135985A (en) * | 2009-12-28 | 2011-07-14 | Kao Corp | Disposable diaper |
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| US5366453A (en) * | 1991-09-11 | 1994-11-22 | Kimberly-Clark Corporation | Newborn's growth adjustable absorbent diaper having variable overlapping and non-overlapping ears |
| US5846232A (en) * | 1995-12-20 | 1998-12-08 | Kimberly-Clark Worldwide, Inc. | Absorbent article containing extensible zones |
| JPH10243961A (en) * | 1997-03-06 | 1998-09-14 | Oji Paper Co Ltd | Diapers |
| JP3967856B2 (en) * | 1999-09-29 | 2007-08-29 | 大王製紙株式会社 | Disposable paper diapers |
| JP3960817B2 (en) * | 2002-02-19 | 2007-08-15 | 花王株式会社 | Disposable diapers |
| JP4036766B2 (en) * | 2003-02-05 | 2008-01-23 | 花王株式会社 | Disposable absorbent article |
| JP4693530B2 (en) * | 2005-07-12 | 2011-06-01 | 花王株式会社 | Disposable diaper and method for producing the same |
| JP4451474B2 (en) * | 2006-09-29 | 2010-04-14 | 大王製紙株式会社 | Disposable diapers |
| JP4477622B2 (en) * | 2006-12-28 | 2010-06-09 | 大王製紙株式会社 | Pants-shaped diapers |
| JP5253064B2 (en) * | 2008-09-18 | 2013-07-31 | ユニ・チャーム株式会社 | Disposable diapers |
| EP2532332B2 (en) * | 2011-06-10 | 2017-10-04 | The Procter and Gamble Company | Disposable diaper having reduced attachment between absorbent core and backsheet |
| US9119749B2 (en) * | 2011-06-29 | 2015-09-01 | Protective Diaper, Llc | Absorbent article and a method of forming and using |
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2013
- 2013-06-04 JP JP2013118176A patent/JP6212289B2/en active Active
-
2014
- 2014-05-23 CN CN201480032304.4A patent/CN105263453B/en active Active
- 2014-05-23 WO PCT/JP2014/063680 patent/WO2014196379A1/en active Application Filing
- 2014-05-23 AU AU2014276039A patent/AU2014276039B2/en not_active Ceased
- 2014-06-04 TW TW103119362A patent/TWI619478B/en active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1166132A (en) * | 1995-10-05 | 1997-11-26 | 花王株式会社 | Disposable diaper |
| EP1226802A2 (en) * | 2001-01-29 | 2002-07-31 | Kao Corporation | Disposable diaper |
| JP2004337388A (en) * | 2003-05-16 | 2004-12-02 | Kao Corp | Absorbent articles |
| CN1829492A (en) * | 2003-07-30 | 2006-09-06 | 尤妮佳股份有限公司 | Disposable diaper |
| CN101198305A (en) * | 2005-06-15 | 2008-06-11 | 大王制纸株式会社 | Disposable diaper |
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| JP2011135985A (en) * | 2009-12-28 | 2011-07-14 | Kao Corp | Disposable diaper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105263453A (en) | 2016-01-20 |
| WO2014196379A1 (en) | 2014-12-11 |
| AU2014276039A1 (en) | 2016-01-21 |
| TWI619478B (en) | 2018-04-01 |
| JP2014233553A (en) | 2014-12-15 |
| TW201515644A (en) | 2015-05-01 |
| AU2014276039B2 (en) | 2018-06-21 |
| JP6212289B2 (en) | 2017-10-11 |
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