CN203841914U - Absorbent article - Google Patents
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- CN203841914U CN203841914U CN201320684661.1U CN201320684661U CN203841914U CN 203841914 U CN203841914 U CN 203841914U CN 201320684661 U CN201320684661 U CN 201320684661U CN 203841914 U CN203841914 U CN 203841914U
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- Prior art keywords
- absorbent
- sheet
- liquid
- absorbent commodity
- protuberance
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- Expired - Fee Related
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- 239000002250 absorbent Substances 0.000 title claims abstract description 202
- 230000002745 absorbent Effects 0.000 title claims abstract description 202
- 229920000247 superabsorbent polymer Polymers 0.000 claims abstract description 84
- 239000000835 fiber Substances 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims description 105
- 239000006096 absorbing agent Substances 0.000 claims description 58
- 238000009792 diffusion process Methods 0.000 claims description 39
- 239000004745 nonwoven fabric Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 14
- 230000035699 permeability Effects 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 34
- 238000012423 maintenance Methods 0.000 description 17
- 229920000642 polymer Polymers 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 15
- 230000008595 infiltration Effects 0.000 description 14
- 238000001764 infiltration Methods 0.000 description 14
- 239000007767 bonding agent Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- -1 alkali metal salts Chemical class 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000004831 Hot glue Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 210000002700 urine Anatomy 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- DZSVIVLGBJKQAP-UHFFFAOYSA-N 1-(2-methyl-5-propan-2-ylcyclohex-2-en-1-yl)propan-1-one Chemical compound CCC(=O)C1CC(C(C)C)CC=C1C DZSVIVLGBJKQAP-UHFFFAOYSA-N 0.000 description 1
- CMCBDXRRFKYBDG-UHFFFAOYSA-N 1-dodecoxydodecane Chemical compound CCCCCCCCCCCCOCCCCCCCCCCCC CMCBDXRRFKYBDG-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- MJIFFWRTVONWNO-UHFFFAOYSA-N 3-oxopent-4-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CCC(=O)C=C MJIFFWRTVONWNO-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 235000009328 Amaranthus caudatus Nutrition 0.000 description 1
- 240000001592 Amaranthus caudatus Species 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229920002785 Croscarmellose sodium Polymers 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 150000001253 acrylic acids Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 235000012735 amaranth Nutrition 0.000 description 1
- 239000004178 amaranth Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000039 congener Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 150000003672 ureas Chemical group 0.000 description 1
Abstract
The utility model provides an absorbent article (10). An absorbent member (13) of an absorbent article (10) has an absorbent core (16) and a core-wrap sheet (17). The absorbent core (16) has a first surface having a high content ratio of superabsorbent polymer and a second surface located on the opposite side of the first surface and having a high content ratio of pulp fiber. The absorbent core (16) has a first surface thereof located on the skin-facing surface and a second surface thereof located on the side of the non-skin-facing surface. A top sheet (11) has an uneven structure formed at least on the surface facing the absorbent member (13), so that spaces are formed between the top sheet (11) and the absorbent member (13) due to the uneven structure. The first surface (16a) of the absorbent core (16) in the absorbent member (13) and the core-wrap sheet (17) are intermittently joined along the width direction by a plurality of bonded regions (18) extending along the longitudinal direction Y.
Description
Technical field
This utility model relates to the absorbent commodity such as disposable diaper, physiological napkin.
Background technology
The known various particle by paper pulp fiber and superabsorbent polymer forms the absorber of absorbent commodity, makes the particle of superabsorbent polymer in the technology of the thickness direction upper offset of absorber.For example in patent documentation 1, record, make the density of the high absorbing material in the one two half part that comprises primary principal plane side in absorber, higher than the density of the high absorbing material in the 22 half part that comprises the second relative first type surface.The skin abutment face side of primary principal plane in absorbent commodity.
In patent documentation 2, record superabsorbent polymer and sneak into the inside of absorber, and part or all of superabsorbent polymer is offset to top layer side and the absorbent commodity that configures.In addition, in the document, record, by the content of setovering like this and having the absorber of superabsorbent polymer and the positive dough sheet that is subjected to concavo-convex embossing to be used in combination.
But, in order to absorb efficiently liquid in the whole region of absorber, propose to make liquid to spread in the face direction of absorber, effectively utilize the various schemes of absorption area.For example, the configuration of the known skin abutment face side at absorber makes the technology of the inferior synusia that liquid easily spreads in face direction.In addition, also known to absorber formation groove, or carry out compression process, and make the technology of liquid to the whole regional diffusion of absorber.But, on the other hand, the whole region extensive diffusive that makes liquid spread all over absorber, the probability that have the probability of the area change that skin contacts with liquid, the humidity in space under wearing state between absorbent commodity and skin rises.In above-mentioned each patent documentation, for improving the diffusion of liquid to the face direction of absorber, and the scheme that elimination spreads due to raising the problem producing is not studied.
Prior art document
Patent documentation
Patent documentation 1: Japanese kokai publication hei 6-205806 communique
Patent documentation 2: TOHKEMY 2007-117727 communique
Utility model content
This utility model provides a kind of absorbent commodity, and it has: the positive dough sheet that is positioned at the position of the skin side of close wearer; Be positioned at the back sheet of the position away from from the skin side of wearer; And absorber between this positive dough sheet and this back sheet, this absorbent commodity is the absorbent commodity with the lengthwise of length direction and the width orthogonal with it.
Above-mentioned absorber has the clad sheet of absorbent cores and coated this absorbent cores.
Above-mentioned absorbent cores is mixed with paper pulp fiber and superabsorbent polymer.The infiltration rate of this superabsorbent polymer be 30 seconds above below 150 seconds.Above-mentioned absorbent cores has the first surface that the ratio of this superabsorbent polymer is high and is positioned at the opposition side of this first surface, the ratio of this paper pulp fiber is high second.
Above-mentioned absorbent cores is configured to that its first surface is positioned at skin abutment face side and the second face is positioned at non-skin abutment face side.
In above-mentioned positive dough sheet, at least there is sag and swell with the opposite face side of above-mentioned absorber.Between this positive dough sheet and this absorber, be formed with the space being produced by this sag and swell.
In above-mentioned absorber, the first surface of above-mentioned absorbent cores and above-mentioned clad sheet, in the multiple engaging zones that extend along its length, broad ways engages intermittently.
Brief description of the drawings
Fig. 1 is the axonometric chart representing as the disposable diaper of an embodiment of the present utility model.
Fig. 2 is the major part enlarged drawing of the positive dough sheet in the diaper shown in Fig. 1.
Fig. 3 is the width sectional view of the major part of the crotch in the diaper shown in presentation graphs 1.
Fig. 4 is the plane graph of the engagement state of absorbent cores in the diaper shown in presentation graphs 1 and clad sheet.
Fig. 5 (a) is the schematic diagram of the diffusion of the liquid in the diaper shown in presentation graphs 1 and the state of absorption to (d).
Detailed description of the invention
To this utility model, describe with reference to accompanying drawing based on its preferred implementation below.In Fig. 1, represent the disposable diaper as an embodiment of absorbent commodity of the present utility model.Fig. 2 is the longitudinal section of the crotch in Fig. 1.Disposable diaper 10 shown in this figure is the diapers with monimostyly deploying type.Diaper 10 has length direction Y and the width X orthogonal with it, is shape longer on length direction Y.The middle section of the length direction Y of diaper 10 is crotch C.The front and back of crotch C are the A of veutro portion and drosal part B.
Diaper 10 has: being positioned near the skin side of wearer is the positive dough sheet 11 of skin abutment face side; Be the back sheet 12 of non-skin abutment face side with being positioned at away from the skin side of wearer.Absorber 13 is between positive dough sheet 11 and back sheet 12.
The left and right sides portion of diaper 10 in width X has a pair of leakproof pad 14,14 that Y extends along its length.Leakproof pad 14 spreads all over the total length of diaper 10 and extends.Leakproof pad 14 is by forming along this length direction Y eighty percent discount at long sheet material 14a of length direction Y.Leakproof pad 14 along its length Y has free end and stiff end.Free end is the position along the broken line of the sheet material 14a of eighty percent discount.The elastomeric element 14b such as rubber covered wire are fixed on free end with elongation state configuration.Elastomeric element 14b is at least configured in crotch C.By the contraction of elastomeric element 14b, leakproof pad 14 has to the tendency of edge-on of the skin of wearer.The stiff end of leakproof pad 14 engages with the extended back sheet 12 in Yuan Xiang side, the left and right sides from absorber 13.By this joint, form shank pad 15 in the left and right sides of diaper 10 portion.In shank pad 15, the position engaging with back sheet 12 at the stiff end of leakproof pad 14, between is fixed with the elastomeric element 14c such as rubber covered wire with elongation state configuration.Elastomeric element 14c is at least configured in crotch C.By the contraction of elastomeric element 14c, under the wearing state of diaper 10, shank pad 15 is close to around the lower limb of wearer.
In diaper 10, be provided with a pair of pull stap F, F in the edge, the left and right sides of drosal part B.Be the non-skin abutment face of back sheet 12 at the outer surface of the A of veutro portion, what be provided with set pull stap F, F is taking band L.By pull stap F is bonded to and is taking band L, complete the wearing state of diaper 10.
Use the sheet material with liquid permeability as positive dough sheet 11.Below this sheet material is described in detail.As back sheet 12, can use film, the non-woven fabrics (for example spinning SMS-spun-bonded non-woven fabrics (Spunbond Meltblown Spunbond)) of opaque liquid or difficult liquid permeability.As the sheet material 14a that forms leakproof pad 14, can use the sheet material of water-repellancy, for example various non-woven fabrics taking spun-bonded non-woven fabrics as representative.
In Fig. 3, represent the major part enlarged drawing of positive dough sheet 11.Positive dough sheet 11 has sag and swell at its each mask.Positive dough sheet 11 has continuous structure in its face direction.Should " continuously " mean the part or the aperture that there is no disconnection.But the such minute aperture of pore is not contained in above-mentioned little yet between fiber.
Positive dough sheet 11 has first surface 111 and second 112.First surface 111 is and the face of the skin butt of wearer.Second 112 is faces relative with absorber 13.In first surface 111 sides of positive dough sheet 11, multiple the first protuberance 11a extend and arrange (below this arrangement being called to oblique grid-like arrangement) with the relation of oblique in the face of both direction in length and breadth.This grid-like arrangement can be also the relation of orthogonal (90 °), and now difference is expressed as the arrangement of orthogonal grid shape.In the present embodiment, preferably any first direction in its face and with the second direction of its oblique angular cross with 30 °～90 °.Further, in the present embodiment, be formed with second 112 side-prominent multiple the second protuberance 11b to positive dough sheet 11.This second protuberance 11b is also oblique grid-like arrangement, but can be also that orthogonal grid shape is arranged.The preferable range of this intersecting angle determines with the first protuberance 11a, therefore with above-mentioned same.This first protuberance 11a and the second protuberance 11b are outstanding towards mutually opposite direction with respect to sheet material.And both are with in top view and be not all nonoverlapping alternate configurations that is related at same position in side view.
As mentioned above, extend respectively the first protuberance 11a and the second protuberance 11b that arrange in the first direction in face and second direction, the ground that do not conflict forms continuously and forms positive dough sheet 11 planarly.Herein, the ground that do not conflict continuously forms and refers to, arranges and is connected and becomes when planar in specific shape part, can be bending or discontinuous, and become with mild curved surface entirety continuum of states.In addition, the ordered state of the first protuberance 11a and the second protuberance 11b is not limited to the mode shown in Fig. 2, as long as the mode that can be configured with the continuous arrangement that do not conflict.For example, can be centered by the first protuberance 11a at 6 the second protuberance 11b of hexagonal apex configuration, and the arrangement that this pattern is launched in face.In addition, now, the quantity of the second protuberance 11b is more than the quantity of the first protuberance 11a, although therefore produce the state that the second protuberance 11b is adjacent to each other, but as long as entirety becomes continuous sheet state, the arrangement of this sample loading mode is also contained in the first protuberance 11a and the second protuberance 11b " replaces " in the connotation of arranging.
The first protuberance 11a and the second protuberance 11b are the truncated cone shape of top band fillet or hemispherical.See in more detail, the outstanding shape of the first protuberance 11a is not sharp-pointed, is hemispherical on the contrary, and on the other hand, the outstanding shape of the second protuberance 11b is more sharp-pointed, becomes circular cone or the truncated cone shape at top with fillet.Certainly, the shape of each protuberance 11a, 11b is not limited thereto, and can be any outstanding mode.For example, can be in fact various cone shapes (cone shape is the meaning that extensively comprises circular cone, the frustum of a cone, pyramid, pyramid, oblique cone etc. in this manual).
The first protuberance 11a and the second protuberance 11b have kept truncated cone shape or hemispheric space 11c, the 11d with the top band fillet of its appearance similar.Each space 11c, 11d, across positive dough sheet 11, are formed as in fact discontinuous space.
In the present embodiment, in the time overlooking positive dough sheet 11, the first protuberance 11a and the second protuberance 11b are formed as faling apart respectively point-like becomes the configuration status of staggered grid.; alternately occur along the first direction in plane with the first protuberance 11a and the second protuberance 11b in the top view of positive dough sheet 11; and the first protuberance 11a and the second protuberance 11b, along the mode also alternately occurring with the orthogonal second direction of first direction, dispose these protuberances 11a, 11b.The positive dough sheet 11 with such structure is for example used as raw material by various fibrous materials, and the method that can be recorded by TOHKEMY 2012-136792 communique be manufactured aptly.
In positive dough sheet 11, at least there is sag and swell with the opposite face side of absorber 13, thus, as shown in Figure 3, in diaper 10, between positive dough sheet 11 and absorber 13, form the multiple space 11d that produced by this sag and swell.Due to this space 11d, positive dough sheet 11 and absorber 13 are spaced discontinuously in face direction.This space 11d, in the time that excretion to the liquid of positive dough sheet 11 sees through this positive dough sheet 11, works as the space that temporarily stores this liquid, suppresses the diffusion of liquid to face direction.The suppressed diffusion to face direction of liquid temporarily storing in the 11d of space, absorbed layer 13 absorbs simultaneously.
From forming the viewpoint that temporarily stores space of enough volumes, more than the apparent thickness of positive dough sheet 11 is preferably 1mm from the position on the summit of the first protuberance 11a to the length of the position on the summit of the second protuberance 11b, more than being particularly preferably 1.5mm, be preferably below 4.5mm, be particularly preferably below 4.2mm.For example, the apparent thickness of positive dough sheet 11 is preferably 1mm with below 4.5mm, more preferably below the above 4.2mm of 1.5mm.The apparent thickness of positive dough sheet 11 is to measure under the state of pressure that aligns dough sheet 11 and apply 0.05kPa.On the other hand, the thickness of positive dough sheet 11 self more than being particularly preferably 0.2mm, is preferably below 2mm more than being preferably 0.1mm, is particularly preferably below 1.5mm.For example the thickness of positive dough sheet 11 self is preferably below the above 2mm of 0.1mm, more preferably below the following 1.5mm of 0.2mm.
Absorber 13 has the clad sheet 17 of absorbent cores 16 and coated absorbent cores 16.The whole region of at least upper surface of clad sheet 17 coated absorbent cores 16, the i.e. whole region of the skin abutment face of the positive dough sheet opposite face of conduct.And the whole region of the lower surfaces of the preferably coated absorbent cores 16 of clad sheet 17, as the whole region of the non-skin abutment face of back sheet opposite face.
Absorbent cores 16 comprises paper pulp fiber and superabsorbent polymer and forms.The state mixing with paper pulp fiber and superabsorbent polymer in absorbent cores 16 carries out fibre lay-up (fiber stacking).Paper pulp fiber and superabsorbent polymer are not equally distributed in the thickness direction Z of absorbent cores 16, and both this distributions exist biasing.In detail, in the thickness direction Z of absorbent cores 16, the first surface that ratio that this absorbent cores 16 has superabsorbent polymer is high and be positioned at high second of the ratio of this paper pulp fiber of the opposition side of this first surface.And absorbent cores 16 is positioned at its first surface the mode that skin abutment face side and the second face be positioned at non-skin abutment face side and configures.
Superabsorbent polymer in absorbent cores 16, in thickness direction Z, in the skin abutment face of absorbent cores 16, it exists ratio the highest.In addition, in the non-skin abutment face of absorbent cores 16, it exists ratio minimum to superabsorbent polymer.Between skin abutment face and non-skin abutment face, superabsorbent polymer exist ratio along with going and reduce to non-skin abutment face from skin abutment face.The mode reducing is for example to reduce gradually continuously, or can be also stepped minimizing discontinuously.
On the other hand, about paper pulp fiber, in thickness direction Z, in the non-skin abutment face of absorbent cores 16, it exists ratio the highest.In addition, in the skin abutment face of absorbent cores 16, it exists ratio minimum.Between skin abutment face and non-skin abutment face, paper pulp fiber exist ratio along with going from non-skin abutment face to skin abutment face and reducing.The mode reducing is for example to reduce gradually continuously, or can be also stepped minimizing discontinuously.
In such absorbent cores 16, superabsorbent polymer is offset to its skin abutment face side, and paper pulp fiber is biased in its non-skin abutment face.The absorbent cores of such structure 16 is engaged with clad sheet 17 and forms absorber 13 specifically to engage pattern, this absorber 13 and the positive dough sheet 11 with above-mentioned sag and swell are used in combination, can suppress thus the diffusion of the liquid in skin abutment face side, and can liquid significantly be spread in non-skin abutment face side.Describe in the back its mechanism in detail.
The degree of the superabsorbent polymer in the thickness direction Z of absorbent cores 16 and the biasing of paper pulp fiber is, at skin abutment face and near the position it, more than the ratio of superabsorbent polymer is preferably 60 quality %, more than being particularly preferably 65 quality %, be preferably below 95 quality %, be particularly preferably below 90 quality %.On the other hand, more than the ratio of paper pulp fiber is preferably 5 quality %, more than being particularly preferably 10 quality %, be preferably below 40 quality %, be particularly preferably below 35 quality %.The ratio of the superabsorbent polymer of for example skin abutment face and near the parts it is preferably below the above 95 quality % of 60 quality %, more preferably below the above 90 quality % of 65 quality %.
Above-mentioned skin abutment face and near the position it refer to and will in the position of the thickness dimidiation of absorber, be positioned at the position of skin abutment face side.On the other hand, non-skin abutment face and near the position it refer to and will in the position of the thickness dimidiation of absorber, be positioned at the position of non-skin abutment face side.Superabsorbent polymer in skin abutment face and near the position it and non-skin abutment face and near the position it and the ratio of paper pulp fiber are measured with following method.
Along its length absorber is cut to the length of 3cm.Position after cutting off is clipped with two acrylic panels.Now, by the feeler gauge that is same thickness with the thickness of absorber with and the mode that do not overlap of absorber insert between acrylic panel, it is maintained to thickness and clamps.Then, use the sword of cutter by absorber dimidiation on thickness direction.The skin abutment face of being cut apart by divisional plane and near the position it and non-skin abutment face and near the position it are put into respectively to the mesh bag being made up of the material without water-retaining property, the mode that can not come off with superabsorbent polymer, carries out following operation to each mesh bag.First, weigh each position (making this value for (A)).Then, each position is flooded 30 minutes in normal saline.Afterwards each position is taken out from normal saline, hang and carry out moisture and remove by naturally dripping for 10 minutes.Then the moisture, each position being undertaken 10 minutes by centrifugal dehydrator with the speed of 800rpm is removed.The moisture of asking for centrifugal dehydrator remove after water quantities (making this value for (B)) (moisture of centrifugal dehydrator is removed to rear maintained water quantities is called " centrifugal maintenance dose " below) in maintained each position.
On the other hand, weigh the superabsorbent polymer and the congener polymer that are contained in each position, put into mesh bag and carry out operation similar to the above, only ask for the centrifugal maintenance dose of superabsorbent polymer.Then, calculate the centrifugal maintenance dose (C) of the superabsorbent polymer of every 1g.
Use A, B, the C value of trying to achieve by above operation, according to the calculating of ((B)-(A)) ÷ (C), ask for the amount (D) of the superabsorbent polymer in each position, and then ask for the ratio of superabsorbent polymer according to (D) ÷ (A).In addition, ask for the ratio of paper pulp fiber according to ((A)-(D)) ÷ (A).
At the non-skin abutment face of absorbent cores 16 and near the position it, more than the ratio of superabsorbent polymer is preferably 30 quality %, more than being particularly preferably 35 quality %, be preferably below 55 quality %, be particularly preferably below 50 quality %.On the other hand, more than the ratio of paper pulp fiber is preferably 45 quality %, more than being particularly preferably 50 quality %, be preferably below 75 quality %, be particularly preferably below 70 quality %.The ratio of for example, superabsorbent polymer in non-skin abutment face and near the position it is preferably below the above 55 quality % of 30 quality %, more preferably below the above 50 quality % of 35 quality %.On the other hand, the ratio of the paper pulp fiber in non-skin abutment face and near the position it is preferably below the above 75 quality % of 45 quality %, more preferably below the above 70 quality % of 50 quality %.
The grammes per square metre (mass area ratio) of the superabsorbent polymer in absorbent cores 16 is preferably 30g/m
2above, be particularly preferably 50g/m
2above.Higher limit is preferably 350g/m
2below, be particularly preferably 300g/m
2below.The grammes per square metre of for example superabsorbent polymer is preferably 30g/m
2above 350g/m
2below, 50g/m more preferably
2above 300g/m
2below.On the other hand, the grammes per square metre of the paper pulp fiber in absorbent cores 16 is preferably 30g/m
2above, be particularly preferably 50g/m
2above.Higher limit is preferably 300g/m
2below, be particularly preferably 250g/m
2below.The grammes per square metre of for example paper pulp fiber is preferably 30g/m
2above 300g/m
2below, 50g/m more preferably
2above 250g/m
2below.
Superabsorbent polymer in absorbent cores 16 and the ratio of paper pulp fiber, in the time representing with the mass ratio of " superabsorbent polymer/paper pulp fiber ", are preferably more than 1, are particularly preferably more than 1.2, are preferably below 2, are particularly preferably below 1.8.By the superabsorbent polymer in absorbent cores 16 and paper pulp fiber amount and their ratio are separately set in the above range, can make absorbent cores 16 thick not too much, and guarantee that sufficient liquid keeps capacity.
The grammes per square metre of absorbent cores 16 self is preferably 60g/m
2above, be particularly preferably 70g/m
2above.Higher limit is preferably 650g/m
2below, be particularly preferably 600g/m
2below.For example the grammes per square metre of absorbent cores 16 is preferably 60g/m
2above 650g/m
2below, 70g/m more preferably
2above 600g/m
2below.
As the superabsorbent polymer that is contained in absorbent cores 16, preferably can absorb and keep self-respect 20 times above liquid and can gel.Shape is not had to special requirement, for example, can be spherical, block, botryoidalis, Powdered or fibrous.Preferably size is that the above 1000 μ m of 1 μ m are following, the particle shape below the above 500 μ m of 10 μ m more preferably.As the example of such superabsorbent polymer, can enumerate polymer or copolymer etc., polyacrylic acid and its salt and the polyacrylate graft polymers of starch, cross-linked carboxymethyl cellulose, acrylic acid or alkali metal salts of acrylic acids.As polyacrylate, can preferably use sodium salt.In addition, by maleic acid, itaconic acid, acrylamide, 2-acrylamide-2-methylpro panesulfonic acid, 2-(methyl) comonomer of acryloyl ethylsulfonic acid, (methyl) acrylic acid-2-hydroxyl ethyl ester or styrene sulfonic acid etc. and acrylic acid in the scope of hydraulic performance decline that does not make superabsorbent polymer copolymerization and copolymer also preferably use.
As the paper pulp fiber that is contained in absorbent cores 16, can use the same material of material using in the prior art in this kind of absorbent commodity.For example can use fluffed pulp.Paper pulp fiber also can make to form the cellulose crosslinked of it as required.Or paper pulp fiber also can be curling.
The clad sheet 17 that covers absorbent cores 16 uses in order to improve the conformality of absorbent cores 16.Can use the fibre plate of liquid permeability as clad sheet 17.For example can use cotton paper, non-woven fabrics.As non-woven fabrics, for example, can use spun-bonded non-woven fabrics, spin SMS-spunbond (SMS) non-woven fabrics, hot-wind nonwoven cloth, spun-laced nonwoven fabric etc.The clad sheet 17 of skin abutment face side and the clad sheet 17 of the non-skin abutment face side of covering that cover absorbent cores 16 can be same material, can be also different types of materials.
As shown in Figure 3, the clad sheet 17 of the upper surface of absorbent cores 16 and this upper surface of covering is engaged intermittently by bonding agent 20.By this joint, the conformality of absorbent cores 16 further improves.In addition, both joints also contribute to liquid in the upper surface of absorbent cores 16 to thickness direction Z see through and to the control of the diffusion of face direction.
In Fig. 4, represent the pattern that engages of the skin abutment face of absorbent cores 16 and non-skin abutment face and clad sheet 17.As shown in the drawing, the upper surface of absorbent cores 16 and clad sheet 17 are engaged by bonding agent 20 in multiple engaging zones 18 that alongst Y extends.Between the adjacent engaging zones 18 of width X, it is disengaged region 19., on width X, adjacent engaging zones 18 is separated by disengaged region 19.The upper surface of absorbent cores 16 and clad sheet 17 continuous engaging zones 18 on length direction Y is engaged like this, and is engaged intermittently across disengaged region 19 on width X.
In the embodiment shown in Fig. 4, there is the engaging zones 18 that two row that applied by helical form are formed as the bonding agent 20 of and be formed with many.Certainly the application pattern of bonding agent 20 is not limited to helical form, for example also can be with the width strip ground adhesive-applying 20 of regulation.Or with the application pattern adhesive-applying 20 of Ω word shape.In addition, in the embodiment shown in Fig. 4, engaging zones 18 spreads all over the formation endlong of the length direction Y of absorbent cores 16, but replaces it, and a part of the length direction Y that engaging zones 18 only also can be formed as in absorbent cores 16 is extended.Extend in the substantial middle region of the length direction Y that for example engaging zones 18 only also can be formed as in absorbent cores 16.
The upper surface of absorbent cores 16 and clad sheet 17 engage with the pattern of regulation, while seeing through thus the liquid arrival clad sheet 17 of positive dough sheet 11, this liquid mainly sees through to absorbent cores 16 by the disengaged region 19 in clad sheet 17, in absorbent cores 16, spreads in face direction.Its reason is, engaging zones 18 is compared the relative more difficult liquid that sees through with disengaged region 19, and therefore based on this reason, the liquid of the upper surface of absorbent cores 16 is suppressed to the diffusion of face direction.Generally speaking, in the time that liquid arrives absorbent cores 16, the liquid in its upper surface is suppressed to the diffusion of face direction, and spreads in face direction at the interior liquid of absorbent cores 16.This can bring and contribute to reduce once be absorbed liquid that core 16 absorbs and shift or return to the liquid of skin the advantageous effects of liquid.
From the viewpoint of the above-mentioned effect of further reinforcement, the ratio of the area in the area of the engaging zones 18 of the upper surface of absorbent cores 16 and clad sheet 17 and disengaged region 19 is represented by " area in the area/disengaged region 19 of engaging zones 18 ", be preferably more than 0.5, be particularly preferably more than 0.6.In addition, preferably this ratio is, below 1.2, to be particularly preferably below 1.For example, this ratio is preferably more than 0.5 below 1.2, more preferably more than 0.6 below 1.
From the viewpoint of the above-mentioned effect of further reinforcement, the width in disengaged region 19 is particularly preferably below 10mm more than being preferably 8mm.Apply many above-mentioned engaging zones 18, and form disengaged region 19 18 of engaging zones with certain interval, can not hinder thus the movement of liquid from positive dough sheet 11 to absorber 13, easily promote the diffusion of liquid to length direction.In addition, the width in disengaged region 19 is preferably below 30mm, is particularly preferably below 25mm.The for example width in disengaged region 19 is preferably below the above 30mm of 8mm, more preferably below the above 25mm of 10mm.In addition, when the strip that applies the width for having regulation at bonding agent 20 forms engaging zones 18, the area of engaging zones 18 refers to the area in the actual coated region of bonding agent 20.On the other hand, bonding agent 20 apply as shown in Figure 4 in spiral helicine situation, coating is for Ω word shape in the situation that (not shown), by the length W(between the end of the bonding agent in width X 20 with reference to Fig. 4) with the long-pending bonding area that is defined as of the length of engaging zones 18.
The upper surface of absorbent cores 16 utilizes engaging zones to engage intermittently with clad sheet 17, even if also have advantages of the diffusion of the face direction that also can suppress liquid in the time repeatedly absorbing liquid.Specifically,, when absorbent cores 16 is once absorb liquid, be contained in superabsorbent polymer swelling wherein.Due to this swelling, in absorbent cores 16 and be configured between the clad sheet 17 of its upper surface and produce space.Now, in both, in disengaged region 19, produce the degree in space compared with engaging zones 18 larger.Even if also carry out smoothly by this space seeing through of liquid when the later for the second time Liquid Absorption, therefore can suppress to the diffusion of the liquid of face direction.
Described above is upper surface in absorbent cores 16 and the relation of clad sheet 17, as shown in Figure 4, the bonding agent 20 of the mode strip coating that the lower surface of absorbent cores 16 and clad sheet 17 are extended by the length direction with in absorbent cores 16 engages.In addition, the joint pattern of bonding agent 20 is not limited to the pattern shown in Fig. 4, also can adopt other pattern.In addition, according to circumstances, the lower surface of absorbent cores 16 also can not engage with clad sheet 17.
To thering is the absorbing mechanism that sees through of liquid in the diaper of present embodiment of above structure, describe to (d) with reference to Fig. 5 (a).Fig. 5 (a) is that liquid N has just been excreted to diaper 10 state afterwards.Under this state, liquid N is held the comprising in the thickness entirety on recess and space 11d apparent of skin opposite face of staying the positive dough sheet 11 with sag and swell.
Fig. 5 (b) is that liquid N sees through the state of positive dough sheet 11 from the skin abutment face side direction absorber opposite face side shifting of this positive dough sheet.Under this state, in the space 11d forming between the clad sheet 17 of liquid N in positive dough sheet 11 and absorber 13, temporarily store.Space 11 forms discontinuously in face direction, and therefore liquid N is suppressed to the diffusion of face direction.
Temporarily hold the liquid in Existential Space 11d, then, as shown in Fig. 5 (c), see through clad sheet 17.As previously mentioned, clad sheet 17 engages with the upper surface 16a of absorbent cores 16 by bonding agent 20.In this engaging zones liquid N see through suppressed.Particularly, engaging zones as shown in Figure 4 above, is provided with many along the length direction of diaper 10, and therefore the diffusion of the face direction of liquid N is suppressed by each engaging zones.Consequently, liquid N is mainly by the disengaged region between engaging zones, without the excess diffusion to face direction see through.
Seeing through the liquid N that clad sheet 17 arrives absorbent cores 16, as shown in Fig. 5 (d), is between the superabsorbent polymer of skin abutment face side through the upper surface 16a side that is offset to this absorbent cores 16.Superabsorbent polymer infiltration rate of liquid compared with paper pulp fiber is slow, and therefore, under the state after liquid N just contacts with superabsorbent polymer, this superabsorbent polymer does not absorb liquid N, and therefore liquid N former state sees through downwards.And superabsorbent polymer is biased in the skin abutment face side of absorbent cores 16, therefore liquid N suppressed diffusion to face direction due to the existence of the superabsorbent polymer before imbibe profit.Consequently, liquid N in the inside of absorbent cores 16 to back sheet 12 sides without the excess diffusion to face direction see through.Then, liquid N is in the back sheet opposite face lateral face direction diffusion of absorbent cores 16.The result absorbing that sees through of carrying out such liquid is, in the diaper 10 of present embodiment, can effectively reduce transfer, time liquid of liquid to skin.The humidity that in addition, can reduce the space between diaper 10 and skin rises.Can more effectively make heat, water vapour distribute to the external world of non-skin abutment face side.Distributing when sheet 12 has poisture-penetrability overleaf of water vapour occurs, and follows this, and distributing of heat is more remarkable.
The viewpoint of the advantageous effects more than further reinforcement, the infiltration rate of superabsorbent polymer is preferably more than 30 seconds, is particularly preferably more than 40 seconds, is preferably below 150 seconds, is particularly preferably below 120 seconds.For example infiltration rate be preferably 30 seconds above below 150 seconds, more preferably 40 seconds are above below 120 seconds.There is the infiltration rate of this scope by superabsorbent polymer, the time that can make superabsorbent polymer start to absorb liquid in the skin abutment face side of absorbent cores 16 thus becomes evening, liquid easily sees through in absorbent cores 16, and the opposite face side liquid of sheet 12 easily spreads in face direction overleaf.In order to obtain the superabsorbent polymer of the infiltration rate with this scope, for example the particle footpath by absorbable polymer, crosslink density, adjustment (rear crosslinking Treatment), the shape control of surface-crosslinked degree, the surface treatment that utilizes the absorbable polymers such as various interfacial agents, polyhydric alcohol, hydrophilic powder body etc. are adjusted.
In addition, the centrifugal maintenance dose according to JIS K7223 standard of superabsorbent polymer more than being particularly preferably 30g/g, is preferably below 65g/g more than being preferably 25g/g, is particularly preferably below 55g/g.For example, centrifugal maintenance dose is preferably below the above 65g/g of 25g/g, more preferably below the above 55g/g of 30g/g.Have the centrifugal maintenance dose of this scope by superabsorbent polymer, the swelling degree that absorbs thus the superabsorbent polymer after liquid becomes large, based on this reason, can in absorbent cores 16, guarantee the path that sees through of liquid.In order to obtain having the superabsorbent polymer of this centrifugal maintenance dose, for example, adjust the surface-crosslinked degree of absorbable polymer.In general,, in the time that the surface-crosslinked degree of absorbable polymer uprises (carrying out surface-crosslinked processing), there is the tendency of centrifugal maintenance dose (water absorbent rate) step-down.Specifically, for example, by adjusting the amount of surface crosslinking agent, or surface-crosslinked treatment temperature is reduced, or the response time is shortened, can adjust centrifugal maintenance dose.
And then the adding of superabsorbent polymer, depresses logical liquid speed and is preferably more than 20ml/ divides, be particularly preferably more than 40ml/ divides, be preferably below 1000ml/ divides, be particularly preferably below 800ml/ divides.For example, add and depress logical liquid speed and be preferably 20ml/ and divide below above 1000ml/ divides, more preferably 40ml/ divides below above 800ml/ divides.There is adding of this scope by superabsorbent polymer and depress logical liquid speed, even if put under the state of absorbent cores 16 at the body pressure of wearer thus, also can between superabsorbent polymer, guarantee the path that sees through of liquid.Depress the superabsorbent polymer of logical liquid speed in order to obtain having adding of this scope, for example, adjust by crosslinked intensity (internal crosslinking and carry out as required surface-crosslinked), shape, surface treatment etc.
The infiltration rate of above-mentioned superabsorbent polymer can be measured according to the vortex method (vortex) of recording in ［ 0050 ］ of TOHKEMY 2010-017536 communique.Centrifugal maintenance dose can be measured by the method for recording in ［ 0047 ］ of TOHKEMY 2010-017536 communique.Add to depress and lead to the middle method mensuration of recording in ［ 0008 ］～［ 0016 ］ that liquid speed can be passed through TOHKEMY 2003-235889 communique.
As mentioned above, in the diaper 10 of present embodiment, in skin abutment face side and the non-skin abutment face side of absorber 13, the diffusion area of liquid is significantly different.For example, in absorber 13, the ratio of the diffusion area of the liquid of the diffusion area of the liquid of skin abutment face side and non-skin abutment face side, i.e. " diffusion area of the liquid of the diffusion area/non-skin abutment face side of the liquid of skin abutment face side ", be preferably more than 0.5, be particularly preferably more than 0.55, be preferably below 0.8, be particularly preferably below 0.75.For example above-mentioned ratio is preferably more than 0.5 below 0.8, more preferably more than 0.55 below 0.75.
Above-mentioned diffusion area is as described below to be measured.Using the assigned position of the sample of planar development as liquid decanting point, use pump, with the speed of 5g/sec, the liquid after painted is injected to ormal weight (40g), leave standstill 10 minutes.Afterwards, peel off positive dough sheet, the painted areas on the clad sheet of the first surface of absorbent cores is imprinted on OHP sheet.By sample upset, peel off back sheet, and then peel off clad sheet reposefully, the painted areas on the clad sheet of second of absorbent cores is imprinted on OHP sheet.The image of OHP sheet is put into scanner, uses image analysis software Image-Pro Plus(NIPPON ROPER to manufacture), calculate diffusion area.
As the liquid using, for example, use artificial urine in the mensuration of above-mentioned diffusion area.The composition of artificial urine is carbamide 1.94 quality %, sodium chloride 0.795 quality %, magnesium sulfate 0.11 quality %, calcium chloride 0.062 quality %, potassium sulfate 0.197 quality %, Amaranth (dyestuff) 0.010 quality %, water 96.88 quality % and poly(ethylene oxide) lauryl ether (approximately 0.07 quality %), and surface tension is adjusted into 53 ± 1dyne/cm(23 DEG C).
Below this utility model is illustrated based on its preferred implementation, but this utility model is not limited by above-mentioned embodiment.For example in the above-described embodiment, have sag and swell at each mask of positive dough sheet 11, but instead, also only the absorber opposite face in positive dough sheet 11 has sag and swell.
In addition, above-mentioned embodiment is that absorbent commodity of the present utility model is applied to the example with monimostylic flat type disposable diaper, but this utility model can be applied to the absorbent commodity of alternate manner, such as pull-on disposable diaper, urine pad, physiological napkin etc. too.
About above-mentioned embodiment, this utility model is open following absorbent commodity further.
(1) absorbent commodity, it comprises:
Be positioned at the positive dough sheet of a side of the skin of close wearer;
Be positioned at the back sheet of the side away from from the skin of wearer; With
Absorber between this positive dough sheet and this back sheet,
This absorbent commodity is the absorbent commodity with the lengthwise of length direction and the width orthogonal with it, wherein
Above-mentioned absorber has absorbent cores and covers the clad sheet of this absorbent cores,
In above-mentioned absorbent cores, be mixed with paper pulp fiber and superabsorbent polymer, the infiltration rate of this superabsorbent polymer be 30 seconds above below 150 seconds, and above-mentioned absorbent cores has the first surface that the ratio of this superabsorbent polymer is high and is positioned at high second of the ratio of opposition side, this paper pulp fiber of this first surface
Above-mentioned absorbent cores is configured to its first surface and is positioned at skin abutment face side, and the second face is positioned at non-skin abutment face side,
In above-mentioned positive dough sheet, the opposite face side of at least above-mentioned absorber has sag and swell, between this positive dough sheet and this absorber, is formed with the space being formed by this sag and swell,
In above-mentioned absorber, the first surface of above-mentioned absorbent cores and above-mentioned clad sheet engage intermittently in the multiple engaging zones that extend along its length on width.
(2) absorbent commodity as described in above-mentioned (1),
The mass ratio of " above-mentioned superabsorbent polymer/above-mentioned paper pulp fiber " in above-mentioned absorbent cores is more than 1 below 2.
(3) absorbent commodity as described in above-mentioned (1) or (2),
The grammes per square metre of the above-mentioned superabsorbent polymer in above-mentioned absorbent cores is 30g/m
2above 350g/m
2below, the grammes per square metre of above-mentioned paper pulp fiber is 30g/m
2above 300g/m
2below.
(4) absorbent commodity as described in any one in above-mentioned (1) to (3),
The centrifugal maintenance dose according to JIS K7223 standard of above-mentioned superabsorbent polymer is below the above 65g/g of 25g/g, and it adds, and to depress logical liquid speed be that 20ml/ divides below above 1000ml/ divides.
(5) absorbent commodity as described in any one in above-mentioned (1) to (4),
The ratio of the area of the first surface of above-mentioned absorbent cores and the engaging zones of above-mentioned clad sheet and the area in disengaged region, i.e. " area in the area/disengaged region of engaging zones ", be more than 0.5 below 1.2, and the width in disengaged region is more than 8mm.
(6) absorbent commodity as described in above-mentioned (5), is characterized in that:
The width in disengaged region is below 30mm.
(7) absorbent commodity as described in any one in above-mentioned (1) to (5),
The ratio of the diffusion area of the diffusion area of the liquid of the skin abutment face side of above-mentioned absorber and the liquid of non-skin abutment face side, i.e. " diffusion area of the liquid of the diffusion area/non-skin abutment face side of the liquid of skin abutment face side " is more than 0.5 below 0.8.
(8) absorbent commodity as described in any one in above-mentioned (1) to (7),
By means of above-mentioned space, positive dough sheet and absorber are spaced discontinuously in face direction.
(9) absorbent commodity as described in any one in above-mentioned (1) to (8),
Positive dough sheet has and the first surface of the skin butt of wearer and with absorber relative second,
In first surface side, multiple the first protuberances extend and arrange with the relation of oblique in face on both direction in length and breadth, the first direction arbitrarily in this face and with the second direction of its oblique with 30 ° of above 90 ° of following angular cross.
(10) absorbent commodity as described in any one in above-mentioned (1) to (9),
Positive dough sheet has and the first surface of the skin butt of wearer and with absorber relative second,
Be arranged with multiple the first protuberances in first surface side,
Be arranged with multiple the second protuberances second side,
The first protuberance and the second protuberance are outstanding towards opposite directions with respect to the sheet material of positive dough sheet,
Two protuberances with in top view and side view, be not all positioned at same position, do not overlap be related to alternate configurations.
(11) absorbent commodity as described in above-mentioned (10),
The arrangement mode of the first protuberance and the second protuberance is, centered by the first protuberance, at 6 the second protuberances of hexagonal apex configuration, and this pattern is expanded such arrangement in face.
(12) absorbent commodity as described in above-mentioned (10) or (11),
The outstanding shape of the first protuberance is hemispherical, and the outstanding shape of the second protuberance is circular cone or the truncated cone shape of sharp-pointed and top band fillet.
(13) absorbent commodity as described in any one in above-mentioned (10) to (12),
Be below the above 4.5mm of 1mm from the position on the summit of the first protuberance to the length of the position on the summit of the second protuberance.
(14) absorbent commodity as described in any one in above-mentioned (1) to (13), is characterized in that:
Clad sheet covers the whole region of the positive dough sheet opposite face of absorbent cores, and covers the whole region of the back sheet opposite face of absorbent cores.
(15) absorbent commodity as described in any one in above-mentioned (1) to (14),
Superabsorbent polymer in absorbent cores there is ratio, between skin abutment face on the thickness direction of this absorbent cores and non-skin abutment face, along with going to non-skin abutment face from skin abutment face, reduce gradually continuously, or discontinuously stepped minimizing.
(16) absorbent commodity as described in any one in above-mentioned (1) to (15),
Paper pulp fiber in absorbent cores there is ratio, between the skin abutment face on the thickness direction of this absorbent cores and non-skin abutment face, along with going to skin abutment face from non-skin abutment face, reduce gradually continuously, or discontinuously stepped minimizing.
(17) absorbent commodity as described in any one in above-mentioned (1) to (16),
At the skin abutment face of absorbent cores and near the position it, the ratio of superabsorbent polymer is below the above 95 quality % of 60 quality %, and the ratio of paper pulp fiber is below the above 40 quality % of 5 quality %.
(18) absorbent commodity as described in any one in above-mentioned (1) to (17), is characterized in that:
The amount of the superabsorbent polymer in absorbent cores is 50g/m
2above 300g/m
2below, the amount of paper pulp fiber is 50g/m
2above 250g/m
2below.
(19) absorbent commodity as described in any one in above-mentioned (1) to (18), is characterized in that:
Clad sheet is made up of the fibre plate of liquid permeability, and the fibre plate of this liquid permeability comprises cotton paper or non-woven fabrics, and this non-woven fabrics comprises spun-bonded non-woven fabrics, spins SMS-spunbond SMS non-woven fabrics, hot-wind nonwoven cloth or spun-laced nonwoven fabric.
(20) absorbent commodity as described in any one in above-mentioned (1) to (19), is characterized in that:
With the application pattern adhesive-applying of helical form, strip or Ω word shape, be formed with above-mentioned engaging zones.
(21) absorbent commodity as described in any one in above-mentioned (1) to (20),
Above-mentioned absorbent commodity has length direction Y and the width X orthogonal with it, is shape longer on length direction Y, and the middle section of length direction Y becomes crotch, and the front and back of this crotch become veutro portion and drosal part.
(22) absorbent commodity as described in above-mentioned (21),
There is a pair of leakproof pad extending on length direction Y in the left and right sides of width X portion,
Leakproof pad spreads all over the extension endlong of absorbent commodity,
Leakproof pad is by will be on length direction Y forming along this length direction Y eighty percent discount compared with a long sheet,
Leakproof pad along its length Y has free end and stiff end, and this free end is the position along broken line of above-mentioned after eighty percent discount, and elasticity position is fixed on this free end with elongation state configuration.
(23) absorbent commodity as described in above-mentioned (22),
Be formed with shank pad in left and right sides portion,
In shank pad, the position engaging with back sheet at the stiff end of leakproof pad, elastomeric element is fixed between the two with elongation state configuration.
(24) absorbent commodity as described in any one in above-mentioned (1) to (23),
This absorbent commodity is disposable diaper.
(25) absorbent commodity as described in above-mentioned (24),
This absorbent commodity is to be with monimostylic flat type disposable diaper.
(26) absorbent commodity as described in above-mentioned (25),
Edge, the left and right sides at drosal part is provided with a pair of pull stap, is provided with taking of this pull stap of set is with at the outer surface of veutro portion.
(27) absorbent commodity as described in above-mentioned (24),
This absorbent commodity is pull-on disposable diaper.
(embodiment)
Below utilize embodiment to further describe this utility model.But scope of the present utility model is not limited to this embodiment.Unless otherwise specified, " % " means " quality % ".
(embodiment 1)
The disposable diaper of the M model for baby of form shown in shop drawings 1.The non-woven fabrics of the form as shown in Figure 2 of the positive dough sheet in diaper forms, and this non-woven fabrics is manufactured by the same method of the method for recording with the embodiment 1 of TOHKEMY 2012-136792 communique.The grammes per square metre of this non-woven fabrics is 30g/m
2, the protuberance in a face is configured to staggered clathrate.The pitch (pitch) of protuberance is 5mm.Another face too.The thickness of non-woven fabrics is 2.1mm under 0.05kPa load.As the back sheet in diaper, use the polyethylene film of difficult liquid permeability.As leakproof pad, use the SMS-spun-bonded non-woven fabrics that spins of water-repellancy.Absorbent cores in absorber is made up of fluffed pulp and superabsorbent polymer.The grammes per square metre of the fluffed pulp that absorbent cores entirety comprises is 172g/m
2, the grammes per square metre of superabsorbent polymer is 257g/m
2.There is ratio diverse ways, the method that adopts TOHKEMY 2007-37668 communique to record as what make the fluffed pulp of skin abutment face side in absorbent cores and non-skin abutment face side and superabsorbent polymer.Consequently, in absorbent cores, from going to non-skin abutment face from skin abutment face, the ratio that exists of superabsorbent polymer reduces gradually, and goes to skin abutment face side from non-skin abutment face, and the ratio that exists of fluffed pulp reduces gradually.The ratio that exists of the superabsorbent polymer in skin abutment face and near the position it is 69.3%.On the other hand, the ratio that exists of the fluffed pulp in non-skin abutment face and near the position it is 63.8%.The superabsorbent polymer using is the polymer A shown in table 1.The infiltration rate of polymer A is 65 seconds, and its centrifugal maintenance dose according to JIS K7223 standard is 31.5g/g, and it adds, and to depress logical liquid speed be that 70ml/ divides.As the clad sheet of coated absorbent cores, use grammes per square metre is 18g/m
2natural pulp NBKP.Between the skin abutment face of absorbent cores and clad sheet, engaged by hot-melt adhesive.Hot-melt adhesive uses spiral spray gun (Summit Spray Gun(Nordson Corporation manufactures)), as shown in Figure 4, employing forms the helical pattern of by 2 row and applies.The rugosity of spiral is 0.05 to 0.2mm, and the width W that is formed as the area of application that the spiral of forms by 2 row shown in Fig. 4 is 5.5mm.Form spiral the area of application of five such width.The distance of adjacent spiral the area of application is 12mm, and the full coating amount of hot-melt adhesive is 3g/m
2.
(embodiment 2)
Make in embodiment 1, the grammes per square metre of the paper pulp in absorbent cores and the grammes per square metre of superabsorbent polymer are shown in table 1.In addition,, as superabsorbent polymer, use the polymer B shown in table 1.The infiltration rate of polymer B is 44 seconds, and its centrifugal maintenance dose according to JIS K7223 standard is 32.8g/g, and it adds, and to depress logical liquid speed be that 21ml/ divides.In addition manufacture similarly to Example 1 disposable diaper.
(embodiment 3)
By in embodiment 1, the grammes per square metre of the paper pulp in absorbent cores and the grammes per square metre of superabsorbent polymer are shown in table 1.In addition manufacture similarly to Example 1 disposable diaper.
(comparative example 1)
This comparative example is, in embodiment 1, changed the application pattern of the hot-melt adhesive applying between the skin abutment face of absorbent cores and clad sheet.In addition make, the positive and negative reversion of the absorbent cores using in embodiment 1.The application pattern of the hot-melt adhesive in this comparative example is coating striation.The rugosity of coating is 2.5mm, and the distance of adjacent figure layer is 2.5mm.In addition, the full coating amount of hot-melt adhesive is 3g/m
2.In addition obtain similarly to Example 1 disposable diaper.
(comparative example 2)
This comparative example is that the positive dough sheet with concaveconvex shape that replacement is used in embodiment 1, uses the example of smooth non-woven fabrics as positive dough sheet.This smooth non-woven fabrics is the grammes per square metre 25g/m by two layers of structure of the polyethylene terephthalate (PET) of 2.0dtex and the composite fibre of polyethylene (PE), the polypropylene (PP) of 5.6dtex and the composite fibre of polyethylene (PE) formation
2hot-wind nonwoven cloth.In addition obtain similarly to Example 1 disposable diaper.
(comparative example 3)
This comparative example is, replaces the polymer B as superabsorbent polymer using in embodiment 2, is used as the example of the polymer C of the smaller superabsorbent polymer of fast, the centrifugal maintenance dose of infiltration rate.The infiltration rate of polymer C is 3 seconds, and its centrifugal maintenance dose according to JIS K7223 standard is 23.4g/g, and it adds, and to depress logical liquid speed be that 0ml/ divides.In addition obtain similarly to Example 2 disposable diaper.
(comparative example 4)
This comparative example is, replaces the polymer A as superabsorbent polymer using in embodiment 1, is used as the example of the polymer D of the smaller superabsorbent polymer of fast, the centrifugal maintenance dose of infiltration rate.The infiltration rate of polymer D is 29 seconds, and its centrifugal maintenance dose according to JIS K7223 standard is 25.3g/g, and it adds, and to depress logical liquid speed be that 130ml/ divides.The grammes per square metre of the fluffed pulp that in addition, absorbent cores entirety comprises is 191g/cm
2, the grammes per square metre of superabsorbent polymer is 300g/cm
2.In addition obtain similarly to Example 1 disposable diaper.
(comparative example 5)
This comparative example is, replaces the absorbent cores using in embodiment 1, uses the example of other absorbent cores.The absorbent cores using in this comparative example, the grammes per square metre of the fluffed pulp that entirety comprises is 200g/cm
2, the grammes per square metre of superabsorbent polymer is 186g/cm
2.The existence approximate equality of the fluffed pulp in absorbent cores and superabsorbent polymer, the ratio that exists of the superabsorbent polymer in skin abutment face and near the position it is 48.5%.On the other hand, the ratio that exists of the fluffed pulp in non-skin abutment face and near the position it is 52.1%.In addition obtain similarly to Example 1 disposable diaper.
(evaluation)
To the diaper being obtained by embodiment and comparative example, measured the degree of the skin abutment face side of absorber and the diffusion of the liquid to face direction of non-skin abutment face side by said method.Result is shown in following table 1.
(table 1)
Known according to the result shown in table 1, the diaper (this utility model product) of each embodiment is compared with the diaper of each comparative example, little in skin abutment face side liquid diffusion area.In addition, the diaper of each embodiment is compared with the diaper of each comparative example, and the ratio of the liquid diffusion area of skin abutment face side and the liquid diffusion area of non-skin abutment face side is less.
Industrial utilizability
According to absorbent commodity of the present utility model, can suppress the diffusion of the liquid of skin abutment face side, and make significantly to spread at non-skin abutment face side liquid.Thus, according to absorbent commodity of the present utility model, can reduce transfer, time liquid of liquid to skin, and can reduce the humidity rising in the space between absorbent commodity and skin.Can more effectively make heat, water vapour distribute to the external world of non-skin abutment face side.
Claims (21)
1. an absorbent commodity, is characterized in that, comprising:
Be positioned at the positive dough sheet of a side of the skin of close wearer;
Be positioned at the back sheet of the side away from from the skin of wearer; With
Absorber between this positive dough sheet and this back sheet,
Described absorbent commodity is the absorbent commodity with the lengthwise of length direction and the width orthogonal with it, wherein
Described absorber has absorbent cores and covers the clad sheet of this absorbent cores,
In described positive dough sheet, the opposite face side of at least described absorber has sag and swell, between this positive dough sheet and this absorber, is formed with the space being formed by this sag and swell,
In described absorber, the first surface of described absorbent cores and described clad sheet engage intermittently in the multiple engaging zones that extend along its length on width.
2. absorbent commodity as claimed in claim 1, is characterized in that:
The ratio of the area of the first surface of described absorbent cores and the engaging zones of described clad sheet and the area in disengaged region, i.e. " area in the area/disengaged region of engaging zones ", be more than 0.5 below 1.2, and the width in disengaged region is more than 8mm.
3. absorbent commodity as claimed in claim 2, is characterized in that:
The width in disengaged region is below 30mm.
4. absorbent commodity as claimed in claim 1, is characterized in that:
The ratio of the diffusion area of the diffusion area of the liquid of the skin abutment face side of described absorber and the liquid of non-skin abutment face side, i.e. " diffusion area of the liquid of the diffusion area/non-skin abutment face side of the liquid of skin abutment face side " is more than 0.5 below 0.8.
5. absorbent commodity as claimed in claim 1, is characterized in that:
By means of described space, positive dough sheet and absorber are spaced discontinuously in face direction.
6. absorbent commodity as claimed in claim 1, is characterized in that:
Positive dough sheet has and the first surface of the skin butt of wearer and with absorber relative second,
In first surface side, multiple the first protuberances extend and arrange with the relation of oblique in face on both direction in length and breadth, the first direction arbitrarily in this face and with the second direction of its oblique with 30 ° of above 90 ° of following angular cross.
7. absorbent commodity as claimed in claim 1, is characterized in that:
Positive dough sheet has and the first surface of the skin butt of wearer and with absorber relative second,
Be arranged with multiple the first protuberances in first surface side,
Be arranged with multiple the second protuberances second side,
The first protuberance and the second protuberance are outstanding towards opposite directions with respect to the sheet material of positive dough sheet,
Two protuberances be not positioned at same position, do not overlap be related to alternate configurations.
8. absorbent commodity as claimed in claim 7, is characterized in that:
The arrangement mode of the first protuberance and the second protuberance is, centered by the first protuberance, at 6 the second protuberances of hexagonal apex configuration, and this pattern is expanded such arrangement in face.
9. absorbent commodity as claimed in claim 7, is characterized in that:
The outstanding shape of the first protuberance is hemispherical, and the outstanding shape of the second protuberance is circular cone or the truncated cone shape of sharp-pointed and top band fillet.
10. absorbent commodity as claimed in claim 7, is characterized in that:
Be below the above 4.5mm of 1mm from the position on the summit of the first protuberance to the length of the position on the summit of the second protuberance.
11. absorbent commodities as claimed in claim 1, is characterized in that:
Clad sheet covers the whole region of the positive dough sheet opposite face of absorbent cores, and covers the whole region of the back sheet opposite face of absorbent cores.
12. absorbent commodities as claimed in claim 1, is characterized in that:
Than non-skin abutment face side, the superabsorbent polymer of skin abutment face side configures manyly.
13. absorbent commodities as claimed in claim 1, is characterized in that:
Clad sheet is made up of the fibre plate of liquid permeability, and the fibre plate of this liquid permeability comprises cotton paper or non-woven fabrics, and this non-woven fabrics comprises spun-bonded non-woven fabrics, spins SMS-spunbond SMS non-woven fabrics, hot-wind nonwoven cloth or spun-laced nonwoven fabric.
14. absorbent commodities as claimed in claim 1, is characterized in that:
With the application pattern adhesive-applying of helical form, strip or Ω word shape, be formed with described engaging zones.
15. absorbent commodities as claimed in claim 1, is characterized in that:
Described absorbent commodity has length direction Y and the width X orthogonal with it, is shape longer on length direction Y, and the middle section of length direction Y becomes crotch, and the front and back of this crotch become veutro portion and drosal part.
16. absorbent commodities as claimed in claim 15, is characterized in that:
There is a pair of leakproof pad extending on length direction Y in the left and right sides of width X portion,
Leakproof pad spreads all over the extension endlong of absorbent commodity,
Leakproof pad is by will be on length direction Y forming along this length direction Y eighty percent discount compared with a long sheet,
Leakproof pad along its length Y has free end and stiff end, and this free end is the position along broken line of described after eighty percent discount, and elastomeric element is fixed on this free end with elongation state configuration.
17. absorbent commodities as claimed in claim 16, is characterized in that:
Be formed with shank pad in left and right sides portion,
In shank pad, the position engaging with back sheet at the stiff end of leakproof pad, elastomeric element is fixed between the two with elongation state configuration.
18. absorbent commodities as claimed in claim 1, is characterized in that:
This absorbent commodity is disposable diaper.
19. absorbent commodities as claimed in claim 18, is characterized in that:
This absorbent commodity is to be with monimostylic flat type disposable diaper.
20. absorbent commodities as claimed in claim 19, is characterized in that:
Edge, the left and right sides at drosal part is provided with a pair of pull stap, is provided with taking of this pull stap of set is with at the outer surface of veutro portion.
21. absorbent commodities as claimed in claim 18, is characterized in that:
This absorbent commodity is pull-on disposable diaper.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012240838 | 2012-10-31 | ||
| JP2012-240838 | 2012-10-31 | ||
| JP2013178882A JP6189143B2 (en) | 2012-10-31 | 2013-08-30 | Absorbent articles |
| JP2013-178882 | 2013-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203841914U true CN203841914U (en) | 2014-09-24 |
Family
ID=51168549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320684661.1U Expired - Fee Related CN203841914U (en) | 2012-10-31 | 2013-10-31 | Absorbent article |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6189143B2 (en) |
| CN (1) | CN203841914U (en) |
| TW (1) | TWM477876U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494245A (en) * | 2014-12-31 | 2015-04-08 | 福建恒安集团有限公司 | Multilayer composite flow guide material |
| CN108024886A (en) * | 2015-09-30 | 2018-05-11 | 大王制纸株式会社 | Absorbent commodity and its manufacture method |
| CN110099655A (en) * | 2016-12-28 | 2019-08-06 | 花王株式会社 | Absorbent commodity |
| CN112601510A (en) * | 2018-08-21 | 2021-04-02 | 尤妮佳股份有限公司 | Absorbent article and method for manufacturing absorbent article |
| CN114786639A (en) * | 2019-12-23 | 2022-07-22 | 花王株式会社 | Absorbent body and method for producing same |
| CN115916129A (en) * | 2020-08-25 | 2023-04-04 | 花王株式会社 | Absorbent article |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6173275B2 (en) * | 2014-08-26 | 2017-08-02 | ユニ・チャーム株式会社 | Absorber and absorbent article including the absorber |
| EP3191053A1 (en) * | 2014-09-12 | 2017-07-19 | The Procter and Gamble Company | Nonwoven material having discrete three-dimensional deformations forming protrusions having a varying width and wide base openings |
| CN106804103A (en) | 2014-09-12 | 2017-06-06 | 宝洁公司 | The non-woven material in the discrete 3 D deformation portion with the base portion opening wide with base binder to extra play |
| US10064766B2 (en) | 2014-09-12 | 2018-09-04 | The Procter & Gamble Company | Nonwoven material having discrete three-dimensional deformations that are configured to collapse in a controlled manner |
| CA2958601A1 (en) * | 2014-09-12 | 2016-03-17 | The Procter & Gamble Company | Nonwoven material having discrete three-dimensional deformations with wide base openings |
| EP3191057B1 (en) * | 2014-09-12 | 2018-08-22 | The Procter and Gamble Company | Nonwoven material having discrete three-dimensional deformations that are configured to collapse in a controlled manner |
| MX2017003322A (en) | 2014-09-12 | 2017-11-22 | Procter & Gamble | Method of making nonwoven material having discrete three-dimensional deformations with wide base openings that are bonded to additional layer. |
| JP6038228B1 (en) * | 2015-05-22 | 2016-12-07 | ユニ・チャーム株式会社 | Absorbent articles |
| JP6950158B2 (en) * | 2016-09-23 | 2021-10-13 | 王子ホールディングス株式会社 | Absorbents and absorbent articles |
| JP6148419B2 (en) * | 2017-01-23 | 2017-06-14 | 大王製紙株式会社 | Absorbent article and manufacturing method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4007685B2 (en) * | 1998-06-11 | 2007-11-14 | 三井化学株式会社 | Top sheet material for absorbent articles |
| JP2007222673A (en) * | 2005-04-01 | 2007-09-06 | Kao Corp | Absorbent article |
| JP5014604B2 (en) * | 2005-08-01 | 2012-08-29 | ユニ・チャーム株式会社 | Sanitary napkin |
| JP4808011B2 (en) * | 2005-11-25 | 2011-11-02 | 旭化成ケミカルズ株式会社 | Body fluid absorbent article with excellent diffusivity |
| JP5008383B2 (en) * | 2006-11-27 | 2012-08-22 | 花王株式会社 | Absorbent articles |
| JP5498152B2 (en) * | 2009-12-28 | 2014-05-21 | 花王株式会社 | Absorber and absorbent article |
| JP5383589B2 (en) * | 2010-05-20 | 2014-01-08 | ユニ・チャーム株式会社 | Body fluid absorber and method for producing the same |
| JP5618684B2 (en) * | 2010-08-03 | 2014-11-05 | 花王株式会社 | Disposable diapers |
-
2013
- 2013-08-30 JP JP2013178882A patent/JP6189143B2/en active Active
- 2013-10-01 TW TW102218366U patent/TWM477876U/en not_active IP Right Cessation
- 2013-10-31 CN CN201320684661.1U patent/CN203841914U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494245A (en) * | 2014-12-31 | 2015-04-08 | 福建恒安集团有限公司 | Multilayer composite flow guide material |
| CN108024886A (en) * | 2015-09-30 | 2018-05-11 | 大王制纸株式会社 | Absorbent commodity and its manufacture method |
| CN108024886B (en) * | 2015-09-30 | 2021-07-06 | 大王制纸株式会社 | Absorbent article and method for manufacturing same |
| CN110099655A (en) * | 2016-12-28 | 2019-08-06 | 花王株式会社 | Absorbent commodity |
| CN110099655B (en) * | 2016-12-28 | 2022-02-25 | 花王株式会社 | Absorbent article |
| CN112601510A (en) * | 2018-08-21 | 2021-04-02 | 尤妮佳股份有限公司 | Absorbent article and method for manufacturing absorbent article |
| CN112601510B (en) * | 2018-08-21 | 2022-09-16 | 尤妮佳股份有限公司 | Absorbent article and method for manufacturing absorbent article |
| CN114786639A (en) * | 2019-12-23 | 2022-07-22 | 花王株式会社 | Absorbent body and method for producing same |
| CN114786639B (en) * | 2019-12-23 | 2022-12-02 | 花王株式会社 | Absorbent body and method for producing same |
| CN115916129A (en) * | 2020-08-25 | 2023-04-04 | 花王株式会社 | Absorbent article |
| CN115916129B (en) * | 2020-08-25 | 2023-11-14 | 花王株式会社 | Absorbent article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014110890A (en) | 2014-06-19 |
| JP6189143B2 (en) | 2017-08-30 |
| TWM477876U (en) | 2014-05-11 |
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