CN101541279A - Absorbent article - Google Patents
Absorbent article Download PDFInfo
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- CN101541279A CN101541279A CNA2007800440565A CN200780044056A CN101541279A CN 101541279 A CN101541279 A CN 101541279A CN A2007800440565 A CNA2007800440565 A CN A2007800440565A CN 200780044056 A CN200780044056 A CN 200780044056A CN 101541279 A CN101541279 A CN 101541279A
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- China
- Prior art keywords
- mentioned
- wing
- release liner
- wing flap
- bond layer
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- 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
- A61F13/551—Packaging before or after use
- A61F13/5513—Packaging before or after use packaging of feminine sanitary napkins
- A61F13/55135—Packaging before or after use packaging of feminine sanitary napkins before use
- A61F13/5514—Packaging before or after use packaging of feminine sanitary napkins before use each item packaged single
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- 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
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- 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
- A61F13/4755—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being a flat barrier on or inside the absorbent article, e.g. backsheet wrapped around the edges
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- 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
- A61F13/476—Sanitary towels, incontinence pads or napkins characterised by encircling the crotch region of the undergarment
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- 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
- A61F13/56—Supporting or fastening means
- A61F13/58—Adhesive tab fastener elements
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
The invention provides an absorbent article that has a winglike flap and, in the state of being individually packaged, has the winglike flap doubled over, and that is designed so that, when in opening the individual packaging member together with the release member is separated from the napkin, the for-wing release member can be deployed smoothly without resistance to thereby accomplish easy separation of the release member from the napkin. In the state of product being individually packaged, not only is winglike flap (W) together with for-wing release member (12) folded onto the side of liquid-permeable front face sheet (3) but also individual packaging member (16) is bonded with for-main-body release member (11) and/or the for-wing release member (12). Accordingly, distal end portions of winglike flaps (W,W) are superimposed one upon the other on the side of liquid-permeable front face sheet (3). At the superimposing area, the portions of the winglike flaps are bonded together by means of wing temporary fixing pressure sensitive adhesive layer (14). The adhesion strength of the wing temporary fixing pressure sensitive adhesive layer (14) is set lower than that between wing displacement preventing pressure sensitive adhesive layer (10) and the for-wing release member (12).
Description
Technical field
The present invention relates to when being fixed in underwear, roll up the crotch part that is attached to underwear and the absorbent commodity that uses with wing flap.
Background technology
In the past, as absorbent commodity N such as sanitary napkin, sanitary pad, leucorrhea liner, incontinence pads, for example, as Figure 12 and shown in Figure 13, known article are: sandwich the absorber of being made by cotton official form for filing a lawsuit slurry etc. 52 between opaque liquid reverse side sheet of being made by polythene strip or the stacked non-woven fabrics of polyethylene etc. 50 and the liquid permeability surface patch 51 made by non-woven fabrics or conductivity of an aperture plastic sheet etc.
In order to prevent the skew under the wearing state, the form that this absorbent commodity N exists has: for example form 1 or many bond layers 53,53 in non-skin contact surface side (outer surface), and, make from the outward extending wing flap W of long side direction both sides of the edge portion, the W of sanitary towel's main body and form one, simultaneously, on the surface (outer surface) of opaque liquid reverse side sheet 50 sides of this wing flap W, W, bond layer 54,54 is set.
When being fixed on above-mentioned absorbent commodity N on the underwear 30, as shown in figure 14, N is attached to the part with absorbent commodity, to take out from underwear to side outstanding above-mentioned wing flap W, W, two wing flap W, W are turned back along fold line RL, RL, the crotch of underwear partly is involved in and is bonded in part outside between the thigh of underwear 30.
On the other hand, when the above-mentioned absorbent commodity N of independent packing, exist in and above-mentioned wing flap is folded under the state of non-use face side (reverse side) (the following back of the body folding that also is called simply) encloses first mode (for example with reference to patent documentation 1) in independent packaging bag, as shown in figure 15, above-mentioned wing flap is being folded to use face side (the following abdomen folding that also simply is called) and is covering each bond layer 54,54, pass through simultaneously across these bond layers 54, the state that peeling paper 56 grades between 54 connect is enclosed second mode (for example with reference to patent documentation 2) of independent packaging bag down.
Yet, under the situation of the independent manner of packing of above-mentioned first mode, with independent packaging bag Kaifeng, when peeling off above-mentioned peeling paper and being worn on absorbent commodity N on the underwear, owing on wing flap W, W, there is folding line towards the inboard, thereby must one by one wing flap W, W be expanded with hands and open, and the bond layer 54 that according to circumstances also has wing flap W, W is bonded on the opaque liquid reverse side sheet 50, and the base material of opaque liquid reverse side sheet 50 extension fragmentation caused the out of use situation of sanitary towel when it was peeled off.
Under the situation of the independent manner of packing of above-mentioned second mode since on wing flap W, W with folding line towards the face of use side, thereby be formed at the bond layer 54 of wing flap W can be not bonding with the bond layer 53 of the reverse side that is formed at main body.But the above-mentioned peeling paper 56 that needs to be crossed between wing flap W, the W is peeled off with hands separately and is discarded, and can not realize an adhesive tape Kaifeng mode (only once the mode of peeling paper is just automatically removed in Kaifeng).And even peeling paper 56 is peeled off, wing flap W, W also can automatically not open and be folded and face side by folding line, thereby user must be opened wing flap W, W expansion with hands when dressing, and dressing needs spended time.
Therefore, the applicant proposes a kind of sanitary towel in following patent documentation 3, under the finished product state of packing separately, be provided with the wing release liner that is used to cover the anti-offset bond layer that is formed at above-mentioned wing flap, above-mentioned wing flap folds and liquid permeability surface patch side with release liner with the above-mentioned wing, and the above-mentioned wing is crossed the fold line position of wing flap with release liner and is extended to the face of opaque liquid reverse side sheet side, and the above-mentioned wing with release liner on the face of opaque liquid reverse side sheet side with the direct cementation of packaging material separately, perhaps use release liner and cementation via the main body that covers the anti-offset bond layer of aforementioned body, and when above-mentioned wing flap is folded to the state of liquid permeability surface patch side with the above-mentioned wing with release liner, have overlappingly between the leading section of above-mentioned wing flap, the wing flap is temporary fixed at this lap each other.
Patent documentation 1: Japanese kokai publication hei 9-94267 communique
Patent documentation 2: utility model is registered communique No. 2567607
Patent documentation 3: TOHKEMY 2004-113590 communique
Summary of the invention
According to above-mentioned patent documentation 3 described sanitary towels, the wing flap can be not bonding with the bond layer that is formed on the main body reverse side when Kaifeng, and can realize adhesive tape Kaifeng mode one time, and when peeling off packaging material, can launch the wing flap automatically, shorten the wearing time.And, by above-mentioned wing flap is temporary fixed each other, in manufacturing process, can stably keep the state after wing flap abdomen is rolled over, the deviation of wing flap can make stable operationization in the time of can eliminating the production line carrying.
Yet, in when Kaifeng, with independent packaging material when sanitary towel peels off with release liner, because the wing flap is folded to liquid permeability surface patch side, thereby make the wing be subjected to bigger resistance with the unfolded stage of release liner, thereby the wing may ftracture with release liner.
And, if above-mentioned wing flap with the wing with release liner along slightly incline direction is folding or pleating folding, then may make the wing need launch bigger power with the folded part of release liner.
Therefore first problem of the present invention is, for having the wing flap and the absorbent commodity of above-mentioned wing flap abdomen folding under independent packed state, the time make independent packaging material when sanitary towel peels off with release liner in Kaifeng, non-resistance successfully makes the wing launch with the wing flap with release liner, and release liner is peeled off from absorbent commodity easily.
As a first aspect of the present invention that solves above-mentioned problem, a kind of absorbent commodity is provided, between liquid permeability surface patch and opaque liquid reverse side sheet, be folded with the both sides of the main part of absorber, the crotch that is respectively formed at when wearing underwear partly is involved in and fixed wing flap, it is characterized in that
On the face of the opaque liquid reverse side sheet side of aforementioned body part, form the anti-offset bond layer of main body, and on the face of the opaque liquid reverse side sheet side of above-mentioned wing flap, form the anti-offset bond layer of flank,
Under the finished product state of packing separately, the anti-offset bond layer of aforementioned body is covered with release liner by main body, and laterally cross on the anti-offset bond layer edge that is formed on the above-mentioned wing flap,
Above-mentioned wing flap is folding to liquid permeability surface patch side with release liner with the above-mentioned wing, and packaging material cement in release liner with the release liner and/or the above-mentioned wing with aforementioned body separately,
The leading section of above-mentioned wing flap stresses to fold at above-mentioned liquid permeability surface patch, and at this lap, the wing flap directly engages by the anti-offset bond layer of flank each other, perhaps makes the above-mentioned wing mediate and strippingly engage indirectly with release liner,
The adhesive strength of the anti-offset bond layer of flank that above-mentioned wing flap is engaged with each other is set to such an extent that be lower than the anti-offset bond layer of above-mentioned flank and the wing with the adhesive strength between the release liner.
In the first aspect of the invention described above, when peeling off independent packaging material, the wing flap is stretched to reverse side sheet side with release liner by the wing, and the wing flap of abdomen folding automatically launches.At this moment, the adhesive strength of the anti-offset bond layer of flank that above-mentioned wing flap is engaged with each other is set to such an extent that be lower than the anti-offset bond layer of above-mentioned flank and the wing with the adhesive strength between the release liner, thereby can easily contact temporary fixed between the wing flap, can successfully the wing be launched with release liner by non-resistance.
After above-mentioned wing flap launched, therefore the folding line owing to having towards the face of use side to a certain degree can prevent that the wing flap is bonding with the anti-offset bond layer that is formed on the main body reverse side.In addition, when peeling off independent packaging material, because the wing is peeled off with release liner, perhaps main body is peeled off with release liner with the wing with release liner, therefore can realize the complete adhesive tape mode that breaks a seal.
As a second aspect of the present invention, provide as the described absorbent commodity of first aspect, wherein, the adhesive strength of the anti-offset bond layer of flank that above-mentioned wing flap is engaged with each other is 0.05～1.00 (N), the anti-offset bond layer of above-mentioned flank and the wing are 0.15～1.50 (N) with the adhesive strength between the release liner, and the adhesive strength ratio of being calculated with the adhesive strength between the release liner by the anti-offset bond layer of the adhesive strength/flank of the anti-offset bond layer of flank and the wing is 0.05～0.80.
As a third aspect of the present invention, provide as arbitrary described absorbent commodity in first, second aspect, wherein, the front side root position that the above-mentioned wing is compared the wing flap with the position of the front side shape line of release liner leaves at least more than the 5mm to the front side.
As a fourth aspect of the present invention, provide as first to the third aspect arbitrary described absorbent commodity, wherein, aforementioned body is the size more than at least 60% of distance between the folding position of wing flap with the width dimensions of release liner.
As a fifth aspect of the present invention, provide as arbitrary described absorbent commodity in first to fourth aspect, wherein, the above-mentioned wing is to make the following size of distance between the front end of wing flap under the absorbent commodity deployed condition with the length dimension of release liner.
The invention of above-mentioned fourth aspect and the 5th aspect, the regulation main body is used the suitable size of release liner with the release liner and the wing.
As a sixth aspect of the present invention, provide as arbitrary described absorbent commodity in first to the 5th aspect, wherein, aforementioned body is implemented lift-off processing with release liner in the composition surface side relative with anti-offset bonding agent with the release liner and/or the wing, implements printing on the face of opposition side.
The invention of above-mentioned the 6th aspect, main body is implemented to print on the face of the opposition side of the composition surface side relative with anti-offset bonding agent with release liner with release liner and/or the wing, can improve thus and wrap exhausted absorbent commodity and disguise when abandoning.
As a seventh aspect of the present invention, provide as arbitrary described absorbent commodity in first to the 6th aspect, wherein, the above-mentioned wing is provided with 1 or many mark lines with release liner at the length direction along absorbent commodity above the folded part of liquid permeability surface patch side.
The invention of above-mentioned the 7th aspect is provided with 1 or many mark lines at the length direction along absorbent commodity above the folded part of liquid permeability surface patch side.In manufacturing process, whether by the direction of the above-mentioned mark line of sensor monitoring, thereby it is folding with regular state with release liner with the wing to detect the wing flap.
As a eighth aspect of the present invention, provide as arbitrary described absorbent commodity in first to the 7th aspect, wherein, above-mentioned mark line is located at respectively on the both sides folded part of wing flap.
In the invention of above-mentioned eight aspect, above-mentioned mark line can monitor the folded state of two sides' wing flap by on the folded part that is separately positioned on both sides.
As a ninth aspect of the present invention, a kind of absorbent commodity is provided, is folded with the both sides of the main part of absorber between liquid permeability surface patch and opaque liquid reverse side sheet, the crotch that is respectively formed at when wearing underwear partly is involved in and fixed wing flap, it is characterized in that
On the face of the opaque liquid reverse side sheet side of aforementioned body part, form the anti-offset bond layer of main body, and on the face of the opaque liquid reverse side sheet side of above-mentioned wing flap, form the anti-offset bond layer of flank,
Under the finished product state of packing separately, anti-offset bond layer of aforementioned body and the anti-offset bond layer that is formed on the above-mentioned wing flap are covered by 1 release liner, above-mentioned wing flap is folding to liquid permeability surface patch side with above-mentioned release liner, and, packaging material cement in above-mentioned release liner separately
The leading section of above-mentioned wing flap stresses to fold at above-mentioned liquid permeability surface patch, and at this lap, the wing flap directly engages by the anti-offset bond layer of flank each other, perhaps makes the above-mentioned wing mediate and strippingly engage indirectly with release liner,
The adhesive strength of the anti-offset bond layer of flank that above-mentioned wing flap is engaged with each other is set to such an extent that be lower than the anti-offset bond layer of above-mentioned flank and the wing with the adhesive strength between the release liner.
Above-mentioned the 9th aspect, main body is not split with the release liner and the wing with release liner, but is covered by 1 release liner.
The invention effect
As described in detail above, according to the present invention, for having the wing flap and the absorbent commodity of above-mentioned wing flap abdomen folding under independent packed state, when Kaifeng, independent packaging material are peeled off with release liner from sanitary towel, non-resistance successfully makes the wing launch with the wing flap with release liner, and release liner is peeled off from absorbent commodity easily.
Description of drawings
Fig. 1 is the broken section expanded view of sanitary napkin 1 of the present invention.
Fig. 2 is its reverse side figure.
Fig. 3 is the III-III alignment view of Fig. 1.
Fig. 4 is the plane graph of the folding main points of expression wing flap.
Fig. 5 is its cross section (the V-V alignment view of Fig. 4)
Fig. 6 is the plane graph of the expression wing with the folding main points of another example of release liner 12.
Fig. 7 is the expression perspective view of packing main points separately.
Fig. 8 is the perspective view of the independent packed state of expression.
Fig. 9 is the perspective view of expression Kaifeng main points.
Figure 10 represents the reverse side figure of sanitary towel of other examples of release liner.
Figure 11 is the expanded view of the expression wing with other folding main points of the variation of release liner 12 and wing flap W, W.
Figure 12 is the expanded view of sanitary napkin N in the past.
Figure 13 is its cross-sectional view.
Figure 14 is that it wears state diagram.
Figure 15 is a plane graph of representing the folding main points of in the past wing flap W, W.
Label declaration
1 sanitary napkin
2 opaque liquid reverse side sheets
3 liquid permeability surface patch
4 absorbers
5 crape paper
6 sidepiece non-woven fabrics
The anti-offset bond layer of 9 main bodys
The anti-offset bond layer of 10 flanks
11 main body release liners
12 wing release liners
The temporary fixed bond layer of 14 flanks
15 mark lines
16 independent package panel
17 label bands
18 release liners
W wing flap
F
sSidepiece periphery flap
The specific embodiment
Below, with reference to accompanying drawing embodiments of the present invention are elaborated.
Fig. 1 is the broken section expanded view of sanitary napkin 1 of the present invention, and Fig. 2 is its reverse side figure, and Fig. 3 is the III-III alignment view of Fig. 1.
Above-mentioned sanitary napkin 1 is by polythene strip, the opaque liquid reverse side sheet 2 that polypropylene foil etc. are made, the liquid permeability surface patch 3 that menses or leucorrhea are seen through rapidly, between these two thin slices 2, the absorber of making by cotton official form for filing a lawsuit slurry or synthetic paper-pulp etc. 4 between 3, for the shape that keeps this absorber 4 and improve the crape paper 5 that diffusibility centers on above-mentioned absorber 4, and the sidepiece non-woven fabrics 6 that forms along long side direction respectively in surperficial both sides, 6 constitute, around above-mentioned absorber 4, lower edge portion thereon, adhesion means such as bonding agent by the hot melt agent or heat-sealing engage the outer edge of above-mentioned opaque liquid reverse side sheet 2 and liquid permeability surface patch 3, in addition, in its both sides of the edge portion, adhesion means such as bonding agent by the hot melt agent or heat-sealing engage above-mentioned opaque liquid reverse side sheet 2 and the above-mentioned sidepiece non-woven fabrics 6 that also extends to the side than absorber 4.In this manual, the flap with this both side edges portion partly is called " sidepiece periphery flap F
s".
Below, further describe the structure of above-mentioned sanitary napkin 1.
Though above-mentioned opaque liquid reverse side sheet 2 has adopted alkenes resin sheets such as polyethylene or polypropylene etc. to have the sheet material of water-resisting property at least, but, in addition, the stacked non-woven fabrics that also can adopt stacked non-woven fabrics on polythene strip etc. and form or use non-woven fabric plate (in this case, forming opaque liquid reverse side sheet) etc. on the basis of further guaranteeing opaque liquid in fact by waterproof membrane and non-woven fabrics at the folder moisture film of setting up defences.In the last few years, considered by anti-viewpoint of going mouldy that tendency adopted the material with poisture-penetrability.This water proof/poisture-penetrability sheet material extends and little porous sheet of acquisition along single shaft or biaxially oriented for by after the melting mixing inorganic filler forms thin slice in alkenes resins such as polyethylene or polypropylene.
Secondly, the preferred non-woven fabrics that adopts porose or atresia of above-mentioned liquid permeability surface patch 3, porous plastic sheet etc.As the raw material fiber that constitutes non-woven fabrics, except alkenes such as polyethylene or polypropylene, polyesters, synthetic fibers such as polyamide-based, for example can also adopt natural fibers such as regenerated fibers such as artificial silk or ammonia copper wire, cotton, also can adopt the non-woven fabrics that obtains by suitable processing method such as spun laced process, spun-bond process, heat viscosity method, meltblown, needle point method.In these processing methods, the advantage of spun laced process is to be imbued with flexibility and drapability, and the advantage of heat viscosity method is fluffy softness.On the other hand, on above-mentioned liquid permeability surface patch 3, form sidepiece stamp 7,7 respectively in the both sides of crossing over row's blood corresponding position, and form arcuation stamp 8,8 respectively in the front and rear part along the substantial distance direction.
The absorber 4 that is folded between above-mentioned opaque liquid reverse side sheet 2 and the liquid permeability surface patch 3 for example is made of fine hair official form for filing a lawsuit slurry and water absorbent polymer.Constituting at above-mentioned water absorbent polymer in the paper pulp of absorber, for example sneaking into as nodular powder.Above-mentioned paper pulp for example can adopt the material that is made of cellulose fibre such as the chemical pulp that obtains by timber, dissolving pulp or man-made cellulose fibers such as artificial silk, acetate fiber, functional and in price, compare with broad leaf tree paper pulp, be more suitable for the coniferous tree paper pulp that adopts fiber long.As this example, under the situation that the crape paper that centers on absorber 4 is set, as a result of, crape paper is between liquid permeability surface patch 3 and absorber 4, by the good above-mentioned crape paper of absorbability, body fluid is spread rapidly, can prevent simultaneously the reverse flow of menses etc.
On the other hand, both sides in the face side of this sanitary napkin 1, along long side direction sidepiece non-woven fabrics 6,6 is set on the roughly total length of sanitary towel 1 respectively, by in the part of this non-woven fabrics 6,6 when extend the side, form wing flap W, W to the part of the opaque liquid reverse side sheet 2 that extends with the side.
Consider that from the function aspects of paying close attention to above-mentioned sidepiece non-woven fabrics 6,6 can use water-proofing treatment non-woven fabrics or hydrophilic treated non-woven fabrics.For example, if pay attention to preventing the infiltration of menses, leucorrhea etc. or improve function such as skin sense of touch, then wish to adopt the water-proofing treatment non-woven fabrics that has been coated with silicon class, wax class, alkyl Chlorizate chromium class waterproofing agent etc.In addition, if pay attention to the absorbabilitys in above-mentioned wing flap W, W such as menses, then wish to adopt coexistences such as the oxidation product polymeric method or also by in the synthetic fibers manufacture process, making chemical compound with hydrophilic group, for example Polyethylene Glycol by utilizing slaines such as stannic chloride to handle,, surface local obtains porous so that dissolving, and make the sedimentary method of metal hydroxides etc., make synthetic fibers have swelling or porous, utilize capillarity that hydrophilic hydrophilic treated non-woven fabrics is provided.
As shown in Figure 2, pressing from both sides between above-mentioned liquid permeability surface patch 3 and the opaque liquid reverse side sheet 2 on the non-skin contact surface of the main part of having established absorber 4, in order to fix, form the anti-offset bond layer 9,9 of main body of many (being 3 in illustrated example) with suitable coated pattern with respect to underwear ...The anti-offset bond layer 9,9 of these main bodys ... cover with release liner 11 by main body.And, on the face of opaque liquid reverse side sheet 2 sides of above-mentioned wing flap W, W, form the anti-offset bond layer 10,10 of flank, and the anti-offset bond layer 10,10 of these flanks is covered with release liner 12 by the wing along 1 that laterally crosses, and aforementioned body uses release liner 12 as shown shown in the example with the release liner 11 and the wing, cementation is integrated securely not peeling off ground by dotted line 13 area surrounded by hot-melt adhesive etc., perhaps aforementioned body with release liner 11 and the wing with release liner 12 both respectively with package panel 16 cementations described later.
As forming the above-mentioned bonding agent that prevents to be offset bond layer 9,10, be suitable for adopting so that any one is the material of main component in styrenic polymer, viscosifier, the plasticizer.Have as above-mentioned styrenic polymer: styrene-ethylene-butylene-styrene block copolymer, styrene-butylene-styrene block copolymer, styrene-isobutylene-styrene copolymer etc., can only use above-mentioned wherein a kind ofly, also can use two or more polymer blends.Wherein, consider optimization styrene-ethylene-butylene-styrene block copolymer from the good thermal stability this point.In addition, above-mentioned viscosifier and plasticizer preferably adopt and are solid material at normal temperatures, for example have as viscosifier: C5 class Petropols, C9 class Petropols, dicyclopentadiene class Petropols, Colophonium class Petropols, polyterpene resin, terpene phenol resin etc., as above-mentioned plasticizer, for example except that monomeric plasticizers such as tricresyl phosphate, dibutyl phthalate, dioctyl phthalate, also have polymeric plasticizers such as ethene polymers or polyester.
As above-mentioned release liner 11,12, contact surface with respect to relative with preventing to be offset bond layer 9,10 for example can use the paper or the plastic sheet that have been coated with release treatment fluid such as silicon resinoid, fluorine-type resin or tetrafluoroethene resinoid or have carried out spraying release processing.In this case,, use to be rich in flexible plastic sheet, can sleekly wing flap W, W be launched with when beginning Kaifeng from independent packed state and peeling off independent packaging material at least for above-mentioned wing release liner 12.And even if do not carry out release processing especially, the material that also can not cause bonding force to reduce substantially both can be a thin film itself, also can be non-woven fabrics itself.
When the above-mentioned sanitary napkin 1 of independent packing, as shown in Figure 4, a side wing flap W is comprised sidepiece periphery flap F along near the fold line RL of the position outside that is set in 4 lateral margins
sWith the wing with release liner 12 after liquid permeability surface patch 3 sides are folding, the opposing party's wing flap W is comprised sidepiece periphery flap F along near the fold line RL of the position outside that is set in absorber 4 lateral margins
sFolding to liquid permeability surface patch 3 sides with the wing with release liner 12.
At this moment, only that above-mentioned wing flap W, W is folding to liquid permeability surface patch 3 sides, the shape instability, above-mentioned wing flap W, W floats or produces loosening, may become the reason of dislocation or winding when transporting on production line.Therefore, in order to make stable operationization, make above-mentioned wing flap W keep being folded to release liner 12 state of liquid permeability surface patch 3 sides with the above-mentioned wing.Particularly, the above-mentioned wing flap W that is folded to above-mentioned liquid permeability surface patch 3 sides, the leading section of W are overlapped each other, and the temporary fixed bond layer 14 of flank of the front end reverse side (or face side) of the wing flap W by being arranged on a side is directly bonding and temporary fixed as shown in Figure 4 each other for wing flap W, W on this lap.Wing flap W, W temporary fixed maintenance each other, as shown in Figure 6, the wing that is arranged on the front end surface side of wing flap W and becomes the opposing party's flank shape flap W of downside at the temporary fixed bond layer 14 of flank covers to the situation of front end with release liner 12, temporary fixed bond layer 14 opposed wings of above-mentioned flank are bonding with release liner 12, and wing flap W, W also can engage with release liner 12 indirectly via the wing.The lap S of above-mentioned wing flap W, W operates stabilisation more in order to make, and is preferably outstanding length L about more than 1/4 of wing flap W.
But in this sanitary towel 1, the adhesive strength of the temporary fixed bond layer 14 of above-mentioned flank that wing flap W, W are bonded to each other is set less than the anti-offset bond layer 10 of above-mentioned flank and the wing adhesive strength with release liner 12.At this, the adhesive strength that engages the temporary fixed bond layer 14 of above-mentioned wing flap flank each other is 0.05～1.00 (N), preferred 0.05～0.60 (N), the anti-offset bond layer 10 of above-mentioned flank and the wing are 0.15～1.50 (N) with the adhesive strength of release liner 12, preferred 0.25～1.30 (N), the adhesive strength ratio of calculating with the adhesive strength of release liner 12 by the anti-offset bond layer 10 of the adhesive strength/flank of the temporary fixed bond layer 14 of flank and the wing is 0.05～0.80.Be preferably 0.05～0.70.Under the situation of adhesive strength less than 0.05 (N) of the temporary fixed bond layer 14 of flank, the interim fully cementation of wing flap W, W can not be kept.In addition, under the situation of 1.00 (N) of surpassing, when being peeled off, release liner 11,12 is not easy to launch wing flap W, W.Use under the situation of adhesive strength less than 0.15 (N) of release liner 12 at the anti-offset bond layer 10 of above-mentioned flank and the wing, when underwear is dressed, may produce skew.And under the situation of 1.50 (N) of surpassing, release liner 11,12 is difficult to peel off.
Above-mentioned adhesive strength is the numerical value that obtains by following test method.
The anti-offset bond layer 10 of the adhesive strength of the temporary fixed bond layer 14 of flank and flank all utilizes the Tan Xilun cupping machine to measure with the wing with the adhesive strength of release liner 12.
(1) experimental condition
Finding speed: 300mm/min, distance between socket: 25mm, socket width: 40mm
(2) adhesive strength of the anti-offset bond layer of flank test (peeling strength test)
The direction of the long side direction of sanitary towel is made as vertically, is laterally with the direction setting of short side direction, and the alar part sampling (vertical 40mm * horizontal 60mm) that is in central authorities is adopted at the temporary fixed position of flank.Wing front end and another wing lateral ends are filled in socket begin to measure, measure the load peaks when peeling off fully.
(3) the anti-offset bond layer of flank and the wing adhesive strength (peeling strength test) between the release liner
The direction of the long side direction of sanitary towel is made as vertically, is laterally with the direction setting of short side direction, adopts the alar part sampling (vertical 40mm * horizontal 60mm) that comprises ala and wing adhesives.Horizontal ala end and horizontal tip extension are filled in socket begin to measure, measure the load peaks when peeling off fully.
On the one hand, the above-mentioned wing front side root position of comparing wing flap W with the optimum seeking site of the front side shape line A of release liner 12 leaves more than the 5mm (label SL) to the front side at least.The root position of above-mentioned wing flap W is decided to be benchmark with the line R that turns back when medicated underpants is dressed.
On the other hand, aforementioned body with the width dimensions B of release liner 11 be between the folding position of wing flap W, W apart from the size more than at least 60% of BK, the above-mentioned wing makes between the front end that is preferably wing flap W, W under the unfolded state of absorbent commodity apart from the size below the LK with the length dimension L of release liner 12.
In addition, aforementioned body with release liner 11 and/or the wing with release liner 12 on the opposite side of the composition surface side relative with preventing to be offset bond layer 9,10, preferably carry out printings such as painted or decorative pattern.By printing, when abandoning having wrapped the sanitary towel 1 after using, menses etc. are disguised to be improved.
And then, as shown in the drawing, at the wing with release liner 12 to the upper surface of the folded part of liquid permeability surface patch 3 sides, along the long side direction of sanitary towel 1 one or more mark line 15 is set, 1 mark line 15 is set respectively on wing flap W, W in illustrated example.By above-mentioned mark line is set, on manufacturing line, can monitor the folded state of the wing flap of both sides, can prevent in advance that folding or pleating sideling folding defective products from producing.
Above-mentioned wing flap W, W pack sanitary napkin 1 separately by independent package panel 16 after the wing folds into face side respectively with release liner 12.
Independent packing method, as shown in Figure 7, use width dimensions to compare the independent package panel 16 of narrow, the wideer specific length of the spreading width of sanitary towel 1 (distance between the front end of wing flap W, W) than the folded state of wing flap W, W, the mode in the outside that is positioned at end, front and back one side of sanitary towel 1 with a side minor face 16b of package panel 16 at least separately is configured in sanitary towel 1 on the independent package panel 16, and, utilize hot-melt adhesive etc. that main body is cemented in together with release liner 12 securely with the release liner 11 and/or the wing.
Thereafter, the folding sanitary towel rearward end rear flank in broken line (1) position, the folding sanitary towel leading section side in broken line (2) position, as shown in Figure 8, to the side edge portions 16a of the opening of independent package panel 16 by suitable sealing mode such as embossing crimping, heat welded, bonding agent separately or combination seal.In addition, after the fore-and-aft direction ora terminalis 16b of package panel 16 engages by bonding agent separately, preferably by label band (tag tape) 17 sealings.
Under the situation of this individually packaged absorbent article, as shown in Figure 9, take out sanitary towel 1 from independent packaging bag, when peeling independent package panel 16 off, wing flap W, W are stretched to reverse side with release liner 12 by the wing, and wing flap W, the W of abdomen folding launch automatically.At this moment, the adhesive strength of the temporary fixed bond layer 14 of flank that above-mentioned wing flap W, W are bonded with each other is set to such an extent that be lower than the anti-offset bond layer 10,10 of flank and the wing adhesive strength with release liner 12, wing flap W, W temporary fixed easy releasing each other thus.And, because the front side root position that makes the wing compare wing flap W with the position of the front side shape line A of release liner 12 leaves more than the 5mm to the front side at least, when therefore peeling off main body from the front side of sanitary towel 1 with release liner 11, at wing flap W position, the folding line of wing flap W is removed gradually from the front side of sanitary towel 1, wing flap W launches, and therefore acts on the resistance force diminishes of the wing with release liner 12, can launch smoothly.And then the wing, because wing flap W becomes and begins unfolded state gradually, therefore can be peeled off from the anti-offset bond layer 10 of flank when the anti-offset bond layer 10 of flank is peeled off easily with release liner 12 with crispaturaing.
And under the state after above-mentioned wing flap W, W launch, owing to the folding line to a certain degree that exists on wing flap W, W towards the face of use side, so wing flap W, W can not be bonded in the anti-offset bond layer 9,9 that is formed at the main body reverse side yet ...If peel off independent package panel 16, then main body is peeled off with release liner 12 with the wing with release liner 11, therefore can realize adhesive tape Kaifeng mode completely.
But the present invention also may carry out various changes except above-mentioned embodiment.Below exemplify in order.
(1) in the above-described embodiment, make main body release liner 11 and wing release liner 12 splits, make both can not peel off ground cementation securely, but as shown in figure 10, also can utilize a release liner 18 main body covered anti-offset bond layers 9,9 ... with the anti-offset bond layer 10,10 of flank.
(2) in the above-described embodiment, use rectangular sheet with release liner 12, but as shown in figure 11, also can make the wing can not extend to the outside of the trim line of sanitary towel 1 with release liner 12 according to sanitary towel's shape cutting as the wing.
(3) in above-mentioned example, wing flap W, W is folding when surface patch 3 sides, comprise sidepiece periphery flap F
sAnd fold, but as shown in figure 11, also can be only that wing flap W, W part is folding to surface patch 3 sides.
(4) in the above-described embodiment, wing flap W, W with near the position outside of absorber 4 lateral margins as fold line, with sidepiece periphery flap F
sFolding to liquid permeability surface patch 3 sides together, but also can be with the inner side of absorber lateral margin as fold line, with sidepiece periphery flap F
sAnd the side edge portions of absorber 4 is folding to liquid permeability surface patch 3 sides together.In this case, can further realize densification.
(5) in above-mentioned example, be that example describes in detail with the sanitary napkin 1 that is formed with wing flap W, W, but the present invention can be suitable for too for the ight sanitary napkin that is formed with the wing flap that the buttocks maintaining part uses in rear portion side.
(6) in above-mentioned example, form wing flap W, W by sidepiece non-woven fabrics 6 and opaque liquid reverse side sheet 2, but also can only form wing flap W or only form wing flap W by opaque liquid reverse side sheet 2 by sidepiece non-woven fabrics 6.
Claims (9)
1. absorbent commodity is folded with the both sides of the main part of absorber between liquid permeability surface patch and opaque liquid reverse side sheet, the crotch that is respectively formed at when wearing underwear partly is involved in and fixed wing flap, it is characterized in that,
On the face of the opaque liquid reverse side sheet side of aforementioned body part, form the anti-offset bond layer of main body, and on the face of the opaque liquid reverse side sheet side of above-mentioned wing flap, form the anti-offset bond layer of flank,
Under the finished product state of packing separately, the anti-offset bond layer of aforementioned body is covered with release liner by main body, and laterally cross on the anti-offset bond layer edge that is formed on the above-mentioned wing flap,
Above-mentioned wing flap is folding to liquid permeability surface patch side with release liner with the above-mentioned wing, and packaging material cement in release liner with the release liner and/or the above-mentioned wing with aforementioned body separately,
The leading section of above-mentioned wing flap stresses to fold at above-mentioned liquid permeability surface patch, and at this lap, the wing flap directly engages by the anti-offset bond layer of flank each other, perhaps makes the above-mentioned wing mediate and strippingly engage indirectly with release liner,
The adhesive strength of the anti-offset bond layer of flank that above-mentioned wing flap is engaged with each other is set to such an extent that be lower than the anti-offset bond layer of above-mentioned flank and the wing with the adhesive strength between the release liner.
2. absorbent commodity as claimed in claim 1, wherein,
The adhesive strength of the anti-offset bond layer of flank that above-mentioned wing flap is engaged with each other is 0.05～1.00 (N), the anti-offset bond layer of above-mentioned flank and the wing are 0.15～1.50 (N) with the adhesive strength between the release liner, and the adhesive strength ratio of being calculated with the adhesive strength between the release liner by the anti-offset bond layer of the adhesive strength/flank of the anti-offset bond layer of flank and the wing is 0.05～0.80.
3. as each described absorbent commodity in the claim 1,2, wherein,
The front side root position that the above-mentioned wing is compared the wing flap with the position of the front side shape line of release liner leaves at least more than the 5mm to the front side.
4. as each described absorbent commodity in the claim 1～3, wherein,
Aforementioned body is the size more than at least 60% of distance between the folding position of wing flap with the width dimensions of release liner.
5. as each described absorbent commodity in the claim 1～4, wherein,
The above-mentioned wing is to make the following size of distance between the front end of wing flap under the absorbent commodity deployed condition with the length dimension of release liner.
6. as each described absorbent commodity in the claim 1～5, wherein,
Aforementioned body is implemented lift-off processing with release liner in the composition surface side relative with anti-offset bonding agent with the release liner and/or the wing, implements printing on the face of opposition side.
7. as each described absorbent commodity in the claim 1～6, wherein, the above-mentioned wing is provided with 1 or many mark lines with release liner at the length direction along absorbent commodity above the folded part of liquid permeability surface patch side.
8. absorbent commodity as claimed in claim 7, wherein,
Above-mentioned mark line is located at respectively on the both sides folded part of wing flap.
9. absorbent commodity is folded with the both sides of the main part of absorber between liquid permeability surface patch and opaque liquid reverse side sheet, the crotch that is respectively formed at when wearing underwear partly is involved in and fixed wing flap, it is characterized in that,
On the face of the opaque liquid reverse side sheet side of aforementioned body part, form the anti-offset bond layer of main body, and on the face of the opaque liquid reverse side sheet side of above-mentioned wing flap, form the anti-offset bond layer of flank,
Under the finished product state of packing separately, anti-offset bond layer of aforementioned body and the anti-offset bond layer that is formed on the above-mentioned wing flap are covered by 1 release liner, above-mentioned wing flap is folding to liquid permeability surface patch side with above-mentioned release liner, and, packaging material cement in above-mentioned release liner separately
The leading section of above-mentioned wing flap stresses to fold at above-mentioned liquid permeability surface patch, and at this lap, the wing flap directly engages by the anti-offset bond layer of flank each other, perhaps makes above-mentioned release liner mediate and strippingly engage indirectly,
The adhesive strength of the anti-offset bond layer of flank that above-mentioned wing flap is engaged with each other is set to such an extent that be lower than the adhesive strength of anti-offset bond layer of aforementioned body and the anti-offset bond layer of flank.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP323782/2006 | 2006-11-30 | ||
| JP2006323782A JP4912847B2 (en) | 2006-11-30 | 2006-11-30 | Absorbent articles |
| PCT/JP2007/073209 WO2008069138A1 (en) | 2006-11-30 | 2007-11-30 | Absorbent article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101541279A true CN101541279A (en) | 2009-09-23 |
| CN101541279B CN101541279B (en) | 2013-08-21 |
Family
ID=39492034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800440565A Active CN101541279B (en) | 2006-11-30 | 2007-11-30 | Absorbent article |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4912847B2 (en) |
| KR (1) | KR101442628B1 (en) |
| CN (1) | CN101541279B (en) |
| WO (1) | WO2008069138A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102740819A (en) * | 2010-01-29 | 2012-10-17 | 大王制纸株式会社 | Absorbent article |
| CN110267633A (en) * | 2017-02-15 | 2019-09-20 | 宝洁公司 | The series of absorbent article with fastening tagging system |
| CN112888410A (en) * | 2018-12-07 | 2021-06-01 | 易希提卫生与保健公司 | Incontinence pad with varying thickness profile |
| CN114945348A (en) * | 2020-01-31 | 2022-08-26 | 尤妮佳股份有限公司 | Individual package of absorbent article |
| TWI804715B (en) * | 2019-03-28 | 2023-06-11 | 日商大王製紙股份有限公司 | Packaging structure, and packaging absorbent article |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010075315A (en) * | 2008-09-25 | 2010-04-08 | Kao Corp | Absorbent article |
| JP5410132B2 (en) * | 2009-03-26 | 2014-02-05 | 大王製紙株式会社 | Absorbent articles and packaging |
| JP5306876B2 (en) * | 2009-03-27 | 2013-10-02 | ユニ・チャーム株式会社 | Body fluid absorbent packaging |
| JP5503225B2 (en) * | 2009-08-31 | 2014-05-28 | 大王製紙株式会社 | Individual absorbent articles |
| JP5934504B2 (en) * | 2011-12-28 | 2016-06-15 | 大王製紙株式会社 | Absorbent articles |
| JP2014147481A (en) * | 2013-01-31 | 2014-08-21 | Nippon Paper Crecia Co Ltd | Individual package of absorbent article |
| JP6443051B2 (en) * | 2015-01-06 | 2018-12-26 | 王子ホールディングス株式会社 | Absorbent articles |
| JP6232042B2 (en) * | 2015-12-28 | 2017-11-15 | ユニ・チャーム株式会社 | Absorbent articles |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE527171T1 (en) * | 1990-05-01 | 1996-11-07 | Procter & Gamble | Monthly bandage with improved tab arrangement. |
| JP2567607Y2 (en) * | 1992-09-04 | 1998-04-02 | ユニ・チャーム株式会社 | Sanitary napkins in individual bags |
| JP3745799B2 (en) * | 1995-09-28 | 2006-02-15 | 大王製紙株式会社 | Absorbent articles with wings |
| AU2133897A (en) * | 1996-02-28 | 1997-09-16 | Procter & Gamble Company, The | Absorbent article |
| EP0998890A1 (en) * | 1998-11-02 | 2000-05-10 | The Procter & Gamble Company | Wrapped sanitary napkin with improved flap disposition |
| US7258683B2 (en) * | 2001-12-19 | 2007-08-21 | Sca Hygiene Products Ab | Absorbent article with detachably connected side flaps having indentations and openings |
| JP3862567B2 (en) * | 2002-01-09 | 2006-12-27 | 大王製紙株式会社 | Packaging sanitary napkin |
| JP3776862B2 (en) * | 2002-09-27 | 2006-05-17 | 大王製紙株式会社 | Absorbent articles |
-
2006
- 2006-11-30 JP JP2006323782A patent/JP4912847B2/en active Active
-
2007
- 2007-11-30 KR KR1020097011087A patent/KR101442628B1/en active IP Right Grant
- 2007-11-30 WO PCT/JP2007/073209 patent/WO2008069138A1/en active Application Filing
- 2007-11-30 CN CN2007800440565A patent/CN101541279B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102740819A (en) * | 2010-01-29 | 2012-10-17 | 大王制纸株式会社 | Absorbent article |
| CN102740819B (en) * | 2010-01-29 | 2015-08-19 | 大王制纸株式会社 | Absorbent commodity |
| CN110267633A (en) * | 2017-02-15 | 2019-09-20 | 宝洁公司 | The series of absorbent article with fastening tagging system |
| CN112888410A (en) * | 2018-12-07 | 2021-06-01 | 易希提卫生与保健公司 | Incontinence pad with varying thickness profile |
| TWI804715B (en) * | 2019-03-28 | 2023-06-11 | 日商大王製紙股份有限公司 | Packaging structure, and packaging absorbent article |
| CN114945348A (en) * | 2020-01-31 | 2022-08-26 | 尤妮佳股份有限公司 | Individual package of absorbent article |
| CN114945348B (en) * | 2020-01-31 | 2023-11-28 | 尤妮佳股份有限公司 | Individual package of absorbent articles |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008069138A1 (en) | 2008-06-12 |
| CN101541279B (en) | 2013-08-21 |
| JP2008136566A (en) | 2008-06-19 |
| KR101442628B1 (en) | 2014-09-22 |
| JP4912847B2 (en) | 2012-04-11 |
| KR20090086086A (en) | 2009-08-10 |
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