JP5909349B2 - Absorbent articles - Google Patents
Absorbent articles Download PDFInfo
- Publication number
- JP5909349B2 JP5909349B2 JP2011268310A JP2011268310A JP5909349B2 JP 5909349 B2 JP5909349 B2 JP 5909349B2 JP 2011268310 A JP2011268310 A JP 2011268310A JP 2011268310 A JP2011268310 A JP 2011268310A JP 5909349 B2 JP5909349 B2 JP 5909349B2
- Authority
- JP
- Japan
- Prior art keywords
- skin
- care agent
- skin care
- facing surface
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000002745 absorbent Effects 0.000 title claims description 28
- 239000002250 absorbent Substances 0.000 title claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 120
- 239000000835 fiber Substances 0.000 claims description 92
- 239000004745 nonwoven fabric Substances 0.000 claims description 38
- 150000001470 diamides Chemical class 0.000 claims description 17
- 239000006096 absorbing agent Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000005871 repellent Substances 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 4
- 150000002191 fatty alcohols Chemical class 0.000 claims description 3
- 238000005342 ion exchange Methods 0.000 claims description 2
- 210000003491 skin Anatomy 0.000 description 207
- -1 etc.) Chemical compound 0.000 description 28
- 238000002844 melting Methods 0.000 description 23
- 230000008018 melting Effects 0.000 description 23
- 238000000034 method Methods 0.000 description 20
- 238000005259 measurement Methods 0.000 description 18
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 18
- 239000004698 Polyethylene Substances 0.000 description 14
- 229920000573 polyethylene Polymers 0.000 description 14
- 239000004743 Polypropylene Substances 0.000 description 12
- 239000002131 composite material Substances 0.000 description 12
- 229920001155 polypropylene Polymers 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 10
- 230000004927 fusion Effects 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 9
- 229920000139 polyethylene terephthalate Polymers 0.000 description 9
- 239000005020 polyethylene terephthalate Substances 0.000 description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 8
- 238000000576 coating method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 6
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- 229930195729 fatty acid Natural products 0.000 description 5
- 239000000194 fatty acid Substances 0.000 description 5
- 239000006210 lotion Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 229920001169 thermoplastic Polymers 0.000 description 5
- 239000004416 thermosoftening plastic Substances 0.000 description 5
- 239000003974 emollient agent Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000004566 IR spectroscopy Methods 0.000 description 3
- 206010021639 Incontinence Diseases 0.000 description 3
- 230000003187 abdominal effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- PRAKJMSDJKAYCZ-UHFFFAOYSA-N squalane Chemical compound CC(C)CCCC(C)CCCC(C)CCCCC(C)CCCC(C)CCCC(C)C PRAKJMSDJKAYCZ-UHFFFAOYSA-N 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 206010039792 Seborrhoea Diseases 0.000 description 2
- 206010040880 Skin irritation Diseases 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 2
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000005690 diesters Chemical class 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000029142 excretion Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000037312 oily skin Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000036556 skin irritation Effects 0.000 description 2
- 231100000475 skin irritation Toxicity 0.000 description 2
- 150000005691 triesters Chemical class 0.000 description 2
- YYGNTYWPHWGJRM-UHFFFAOYSA-N (6E,10E,14E,18E)-2,6,10,15,19,23-hexamethyltetracosa-2,6,10,14,18,22-hexaene Chemical compound CC(C)=CCCC(C)=CCCC(C)=CCCC=C(C)CCC=C(C)CCC=C(C)C YYGNTYWPHWGJRM-UHFFFAOYSA-N 0.000 description 1
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 description 1
- ZLENSKMFKIELTB-UHFFFAOYSA-N 4-(2,4-dimethyldocosan-4-yloxy)-2,4-dimethyldocosane Chemical compound CCCCCCCCCCCCCCCCCCC(C)(CC(C)C)OC(C)(CC(C)C)CCCCCCCCCCCCCCCCCC ZLENSKMFKIELTB-UHFFFAOYSA-N 0.000 description 1
- MDLSDIRYRKOFCJ-UHFFFAOYSA-N 4-(2,4-dimethylicosan-4-yloxy)-2,4-dimethylicosane Chemical compound CCCCCCCCCCCCCCCCC(C)(CC(C)C)OC(C)(CC(C)C)CCCCCCCCCCCCCCCC MDLSDIRYRKOFCJ-UHFFFAOYSA-N 0.000 description 1
- DPISTHRTKLHIMU-UHFFFAOYSA-N 4-(2,4-dimethyloctadecan-4-yloxy)-2,4-dimethyloctadecane Chemical compound CCCCCCCCCCCCCCC(C)(CC(C)C)OC(C)(CC(C)C)CCCCCCCCCCCCCC DPISTHRTKLHIMU-UHFFFAOYSA-N 0.000 description 1
- FJWPTALGCKMQMB-PTYZJIDKSA-N C(CCCCCCCCCCCCCCC(C)C)C1[C@@H]([C@]2(CC[C@@H]3[C@]4(CC[C@@H](CC4=CC[C@H]3[C@@H]2C1)O)C)C)[C@H](C)CCCC(C)C Chemical compound C(CCCCCCCCCCCCCCC(C)C)C1[C@@H]([C@]2(CC[C@@H]3[C@]4(CC[C@@H](CC4=CC[C@H]3[C@@H]2C1)O)C)C)[C@H](C)CCCC(C)C FJWPTALGCKMQMB-PTYZJIDKSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000858 Cyclodextrin Polymers 0.000 description 1
- 208000010201 Exanthema Diseases 0.000 description 1
- 238000001157 Fourier transform infrared spectrum Methods 0.000 description 1
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical class NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- BHEOSNUKNHRBNM-UHFFFAOYSA-N Tetramethylsqualene Natural products CC(=C)C(C)CCC(=C)C(C)CCC(C)=CCCC=C(C)CCC(C)C(=C)CCC(C)C(C)=C BHEOSNUKNHRBNM-UHFFFAOYSA-N 0.000 description 1
- 229920006221 acetate fiber Polymers 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 201000005884 exanthem Diseases 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 150000002195 fatty ethers Chemical class 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229940119170 jojoba wax Drugs 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000007721 medicinal effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- JXTPJDDICSTXJX-UHFFFAOYSA-N n-Triacontane Natural products CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC JXTPJDDICSTXJX-UHFFFAOYSA-N 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 235000019809 paraffin wax Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 235000005713 safflower oil Nutrition 0.000 description 1
- 239000003813 safflower oil Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229940032094 squalane Drugs 0.000 description 1
- 229940031439 squalene Drugs 0.000 description 1
- TUHBEKDERLKLEC-UHFFFAOYSA-N squalene Natural products CC(=CCCC(=CCCC(=CCCC=C(/C)CCC=C(/C)CC=C(C)C)C)C)C TUHBEKDERLKLEC-UHFFFAOYSA-N 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 210000000434 stratum corneum Anatomy 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51113—Topsheet, i.e. the permeable cover or layer facing the skin comprising an additive, e.g. lotion or odour control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51104—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51113—Topsheet, i.e. the permeable cover or layer facing the skin comprising an additive, e.g. lotion or odour control
- A61F2013/51117—Topsheet, i.e. the permeable cover or layer facing the skin comprising an additive, e.g. lotion or odour control the lotion having skin care properties
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)
- Absorbent Articles And Supports Therefor (AREA)
Description
本発明は、使い捨ておむつ、生理用ナプキン、パンティライナー(おりものシート)、失禁パッド等の吸収性物品に関する。 The present invention relates to an absorbent article such as a disposable diaper, a sanitary napkin, a panty liner (corimono sheet), and an incontinence pad.
使い捨ておむつ、生理用ナプキン、パンティライナー(おりものシート)、失禁パッド等の吸収性物品を着用すると、蒸れ等によって皮膚にかぶれが生じることがある。そのため、スキンケア効果を付与してかぶれの発生を抑制するべく、吸収性物品にスキンケア剤を含有させた吸収性物品が提案されている。
例えば、特許文献1には、表面シートに、エモリエント剤と固定化剤を含むローション組成物を、非均一パターンで適用した吸収性物品が記載されている。また、特許文献2には、複数の細片から成るパターンの形状で液体透過性トップシートにローションが付けられ、前記細片はローションが付けられていない複数の領域によって隔てられ、複数の細片から成るパターンは不連続的なパターンである、使い捨て吸収性物品が記載されている。
Wearing absorbent articles such as disposable diapers, sanitary napkins, panty liners (corimono sheets), and incontinence pads may cause skin irritation due to stuffiness. Therefore, in order to give a skin care effect and suppress the occurrence of rash, an absorbent article in which an absorbent article contains a skin care agent has been proposed.
For example, Patent Document 1 describes an absorbent article in which a lotion composition containing an emollient and a fixing agent is applied to a top sheet in a non-uniform pattern. Further, in Patent Document 2, a lotion is applied to a liquid-permeable top sheet in the form of a pattern composed of a plurality of strips, and the strips are separated by a plurality of regions not provided with a lotion. A disposable absorbent article is described in which the pattern consisting of is a discontinuous pattern.
また、本出願人は、先に、吸収性物品における、着用時に着用者の肌に当てられる面に、着用者の肌に移行して油性スキンケア剤として機能する特定構造のジアミド誘導体を塗布することを提案している(特許文献3参照)。 In addition, the applicant first applies a diamide derivative having a specific structure that moves to the skin of the wearer and functions as an oily skin care agent on the surface of the absorbent article that is applied to the wearer's skin when worn. (Refer to Patent Document 3).
特許文献1,2には、スキンケア剤に該当するローション組成物を、表面シートに所定のパターンで部分的に適用することが記載されている。
しかし、表面シートの肌に当接する部位にスキンケア剤を多量に存在させてスキンケア効果を高めることと、当該部位にその多量のスキンケア剤を安定に保持させることとを両立させることは困難であった。
Patent Documents 1 and 2 describe that a lotion composition corresponding to a skin care agent is partially applied to a surface sheet in a predetermined pattern.
However, it has been difficult to achieve a balance between improving the skin care effect by making a large amount of the skin care agent present at the part of the surface sheet that comes into contact with the skin and keeping the large amount of the skin care agent stably at the part. .
したがって、本発明は、肌に移行させ易い部位にスキンケア剤を安定的に保持でき、スキンケア効果及びその持続性に優れた吸収性物品に関する。 Therefore, this invention relates to the absorbent article which can hold | maintain a skin care agent stably in the site | part which is easy to transfer to skin, and was excellent in the skin care effect and its sustainability.
本発明は、不織布からなる液透過性の表面シート、液不透過性又は撥水性の裏面シート及びこれら両シート間に配置された吸収体を備えた吸収性物品であって、前記表面シートは、着用者の肌側に向かって突出する多数の突出部を有し、前記突出部は、前記吸収体側が開放された内部空間を有しており、前記突出部は、頂部における肌対向面及び非肌対向面の両面にスキンケア剤が付着しており、該頂部における非対向面よりも肌対向面の方が、単位面積当たりのスキンケア剤量が多い吸収性物品を提供するものである。 The present invention is an absorbent article comprising a liquid-permeable surface sheet made of a nonwoven fabric, a liquid-impermeable or water-repellent back sheet, and an absorbent body disposed between both the sheets, A plurality of projecting portions projecting toward the wearer's skin side, the projecting portion having an internal space in which the absorber side is opened; The skin care agent adheres to both surfaces of the skin facing surface, and the skin facing surface has a larger amount of skin care agent per unit area than the non-facing surface at the top.
本発明の吸収性物品は、肌に移行させ易い部位にスキンケア剤を安定的に保持でき、スキンケア効果及びその持続性に優れている。 The absorbent article of the present invention can stably hold the skin care agent at a site that is easily transferred to the skin, and is excellent in skin care effect and its sustainability.
以下本発明を、その好ましい実施形態に基づき図面を参照しながら説明する。
図1は、本発明の第1実施形態である使い捨ておむつ1を一部破断して示す平面図である。第1実施形態の使い捨ておむつ1(以下、単におむつ1ともいう)は、図1に示すように、液透過性の表面シート10、液不透過性又は撥水性の裏面シート30及びこれら両シート間に配置された液保持性の吸収体40を備えている。
また、おむつ1は、その長手方向に、着用時に着用者の背中側に配される背側部A、股間部に配される股下部B及び腹側に配される腹側部Cを有している。
おむつ1の長手方向の両側それぞれには、撥水性不織布からなるサイドシート70が、表面シート10の両側部を覆うように配されている。表面シート10及び各サイドシート70は、吸収体40の周縁よりも外方の位置において、裏面シート30に接合されている。吸収体40の側縁よりも外方に位置するレッグフラップ部には、レッグギャザー形成用の弾性部材71が配されている。上述したサイドシート70のおむつ幅方向中央側の側縁には、立体ギャザー形成用の弾性部材72が配されている。
The present invention will be described below based on preferred embodiments with reference to the drawings.
FIG. 1 is a plan view showing the disposable diaper 1 according to the first embodiment of the present invention, partially broken away. As shown in FIG. 1, the disposable diaper 1 of the first embodiment (hereinafter, also simply referred to as diaper 1) includes a liquid-permeable top sheet 10, a liquid-impermeable or water-repellent back sheet 30, and a space between these two sheets. The liquid-retaining absorbent 40 is provided.
Moreover, the diaper 1 has the back side part A distribute | arranged to the wearer's back side at the time of wear in the longitudinal direction, the crotch part B distribute | arranged to the crotch part, and the abdominal side part C distribute | arranged to the abdominal side. ing.
On both sides in the longitudinal direction of the diaper 1, side sheets 70 made of a water-repellent nonwoven fabric are disposed so as to cover both side portions of the topsheet 10. The top sheet 10 and each side sheet 70 are joined to the back sheet 30 at a position outside the periphery of the absorber 40. An elastic member 71 for forming leg gathers is disposed on the leg flap portion located outside the side edge of the absorber 40. An elastic member 72 for forming a three-dimensional gather is disposed on the side edge of the side sheet 70 on the center side in the diaper width direction.
おむつ1は、いわゆる展開型のおむつであり、背側部Aの両側縁部に設けられたファスニングテープ50,50を、腹側部Cの外面に設けられたランディングテープ60に止着することにより、身体に装着して使用する。なお、裏面シート30、吸収体40、ファスニングテープ50、ランディングテープ60、サイドシート70、弾性部材71,72としては、それぞれ、この種の物品に使用されているものを特に制限なく使用することができる。吸収体40としては、パルプ繊維等の繊維材料からなる繊維集合体又はこれに吸水性ポリマーの粒子等を保持したものを、ティッシュペーパや透水性の不織布等からなるコアラップシートで被覆してなるもの等を用いることができる。 The diaper 1 is a so-called unfolded diaper, by fastening fastening tapes 50, 50 provided on both side edges of the back side A to a landing tape 60 provided on the outer surface of the abdominal side C. Use on the body. In addition, as the back sheet 30, the absorber 40, the fastening tape 50, the landing tape 60, the side sheet 70, and the elastic members 71 and 72, those used for this type of article can be used without any particular limitation. it can. The absorbent body 40 is formed by coating a fiber assembly made of a fiber material such as pulp fiber or a core wrap sheet made of tissue paper, a water-permeable nonwoven fabric, or the like holding a water absorbent polymer particle or the like. A thing etc. can be used.
第1実施形態における表面シート10は、図2に示すように、不織布からなり、着用者の肌側に向かって突出する多数の突出部11を有している。突出部11は、それぞれ、吸収体側(図2中下側)が開放された内部空間11aを有している。
そして、図3に示すように、突出部11は、頂部12における肌対向面12a及び非肌対向面12bの両面にスキンケア剤13が付着しており、頂部12の非肌対向面12bよりも頂部12の肌対向面12aの方が、単位面積当たりのスキンケア剤量が多い。
The surface sheet 10 in 1st Embodiment consists of a nonwoven fabric as shown in FIG. 2, and has many protrusion parts 11 which protrude toward a wearer's skin side. Each protrusion 11 has an internal space 11a that is open on the absorber side (lower side in FIG. 2).
And as shown in FIG. 3, the skin care agent 13 has adhered to both surfaces of the skin opposing surface 12a and the non-skin opposing surface 12b in the top part 12, and the protrusion part 11 has a top part rather than the non-skin opposing surface 12b of the top part 12. Twelve skin facing surfaces 12a have a larger amount of skin care agent per unit area.
表面シート10の突出部11は、図2に示すように、その複数がX方向に所定のピッチPx(図4参照)で直列した突出部列L11を形成し、そのような突出部列L11が、X方向と交差するY方向に所定のピッチPy(図3参照)で複数列形成されている。X方向及びY方向は、表面シート10の面内における一方向及びその交差方向であり、本実施形態においては、X方向及びY方向は、後述する不織布10’及び表面シート10を製造する際の機械方向(MD)及びその交差方向(CD)と一致している。X方向及びY方向は互いに直交している。
隣り合う突出部列L11においては、突出部11の位置が、X方向に、突出部11間のピッチPx(図4参照)の半ピッチ分ずれている。
表面シート10には、4つの角部のそれぞれに突出部11の中心が位置する平面視略菱形形状(図6に図示した例は略正方形状)の多数の菱形領域R11(図6参照)が形成されている。そして、その菱形領域R11の中央部が、突出部11に対して相対的に窪んだ凹状の底部21となっている。
As shown in FIG. 2, the protrusions 11 of the topsheet 10 form a protrusion row L11 in which a plurality of the protrusions 11 are arranged in series in the X direction at a predetermined pitch Px (see FIG. 4). A plurality of rows are formed at a predetermined pitch Py (see FIG. 3) in the Y direction intersecting the X direction. The X direction and the Y direction are one direction in the plane of the topsheet 10 and its intersecting direction. In the present embodiment, the X direction and the Y direction are used when the nonwoven fabric 10 ′ and the topsheet 10 described later are manufactured. It coincides with the machine direction (MD) and its cross direction (CD). The X direction and the Y direction are orthogonal to each other.
In the adjacent protrusion line L11, the position of the protrusion 11 is shifted in the X direction by a half pitch of the pitch Px between the protrusions 11 (see FIG. 4).
The top sheet 10 has a large number of rhombus regions R11 (see FIG. 6) having a substantially rhombus shape in plan view (the example illustrated in FIG. 6 is a substantially square shape) in which the center of the protruding portion 11 is located at each of the four corners. Is formed. And the center part of the rhombus area | region R11 becomes the concave bottom part 21 recessed relatively with respect to the protrusion part 11. FIG.
突出部11は、X方向及びY方向の断面がいずれも肌側に向けて凸の円弧状をなす凸曲面状の頂部12を有しており、底部21は、X方向及びY方向の断面がいずれも肌側に向けて凹の凹曲面状をなしている。凸曲面状の頂部12は、半円形状又は先端を丸めた円錐台形状を有している。凹状の底部21は、肌側から見れば凹曲面状であるが、吸収体4側から見れば、半円形状ないし先端を丸めた円柱若しくは円錐台状の形状を有している。
図3及び図4に示すように、突出部11の頂部12と凹状の底部21との間には、側壁部3が介在しており、頂部12、側壁部3及び底部21は、X方向及びY方向の断面において連続波状に連続している。他方、図5及び図6に示すように、X方向及びY方向のそれぞれと交差するM1方向及びM2方向においては、突出部11の頂部12どうしの間が、尾根部16を介して繋がっており、M1及びM2方向の断面においては、一の突出部11の頂部12と、尾根部16と、他の突出部11の頂部12とが連続波状に連続している。
The projecting portion 11 has a convex-curved top portion 12 in which the cross section in the X direction and the Y direction both forms a convex arc shape toward the skin side, and the bottom portion 21 has a cross section in the X direction and the Y direction. All have a concave concave surface toward the skin. The convex-curved top portion 12 has a semicircular shape or a truncated cone shape with a rounded tip. The concave bottom portion 21 has a concave curved surface shape when viewed from the skin side, but has a semicircular shape, a circular column with a rounded tip, or a truncated cone shape when viewed from the absorber 4 side.
As shown in FIGS. 3 and 4, the side wall 3 is interposed between the top 12 of the protrusion 11 and the concave bottom 21, and the top 12, the side wall 3, and the bottom 21 are arranged in the X direction and It continues in a continuous wave shape in the cross section in the Y direction. On the other hand, as shown in FIGS. 5 and 6, in the M1 direction and the M2 direction intersecting with the X direction and the Y direction, the top portions 12 of the projecting portions 11 are connected via the ridge portion 16. In the cross sections in the M1 and M2 directions, the top 12 of one protrusion 11, the ridge 16, and the top 12 of the other protrusion 11 are continuous in a continuous wave shape.
図3に示すように、本実施形態の表面シート10においては、X方向及びY方向の断面に表れる側壁部3の肌対向面3aにもスキンケア剤13が付着している。そして、頂部12の肌対向面12aよりも、側壁部3の肌対向面3aの方が、単位面積当たりのスキンケア剤量が少ない。更に、底部21の肌対向面21aにもスキンケア剤13が付着している。底部21の肌対向面21aと、側壁部3の肌対向面3aとは、単位面積当たりのスキンケア剤量はほぼ同量である。
頂部12における肌対向面12aのスキンケア剤量に対して頂部12の非肌対向面12bのスキンケア剤量がかなり少なくなること、及び頂部12の肌対向面12aにおける単位面積当たりのスキンケア剤量に対する、側壁部3の肌対向面3aにおける単位面積当たりのスキンケア剤量の関係から考察すると、側壁部3の非肌対向面3bには、スキンケア剤13が実質的に付着していないか、又は側壁部3の肌対向面3aに比して顕著に少ない量しかスキンケア剤13が付着していないことが推察される。他方、側壁部3の肌対向面3aにおけるスキンケア剤13の付着量は、頂部12の非肌対向面12bにおけるスキンケア剤13の付着量よりも多い。
As shown in FIG. 3, in the topsheet 10 of this embodiment, the skin care agent 13 is also attached to the skin facing surface 3 a of the side wall portion 3 that appears in the cross section in the X direction and the Y direction. And the skin facing surface 3a of the side wall 3 has a smaller amount of skin care agent per unit area than the skin facing surface 12a of the top portion 12. Further, the skin care agent 13 is also attached to the skin facing surface 21 a of the bottom portion 21. The skin facing surface 21a of the bottom 21 and the skin facing surface 3a of the side wall 3 have substantially the same amount of skin care agent per unit area.
The skin care agent amount of the non-skin facing surface 12b of the top portion 12 is considerably smaller than the skin care agent amount of the skin facing surface 12a of the top portion 12, and the skin care agent amount per unit area of the skin facing surface 12a of the top portion 12 is Considering from the relationship of the amount of skin care agent per unit area on the skin facing surface 3a of the side wall part 3, the skin care agent 13 is not substantially attached to the non-skin facing surface 3b of the side wall part 3 or the side wall part. It is inferred that the skin care agent 13 is attached only in a remarkably small amount as compared with the skin facing surface 3a. On the other hand, the adhesion amount of the skin care agent 13 on the skin facing surface 3 a of the side wall 3 is larger than the adhesion amount of the skin care agent 13 on the non-skin facing surface 12 b of the top portion 12.
側壁部3のスキンケア剤13の量は、図3及び図4に示すように、無加圧時の表面シート10の厚み(T)を3等分するようにして、表面シート10を厚み方向に3領域P1〜P3に分割し、その中央領域P2に位置する部分を側壁部3として、スキンケア剤量を測定する。無加圧時の表面シート10の厚み(T)は、後述する方法で測定する。
頂部12は、表面シート10の平面視における突出部11の中央部から試験片を得て、後述する実施例で説明するスキンケア剤量の測定を行う。同様に、底部21におけるスキンケア剤量の測定は、表面シートの平面視における底部21の中央部から試験片を得て行う。側壁部3におけるスキンケア剤量の測定は、中央領域P2(好ましくは頂部21と底部21の中間部分)から試験片を得て行う。
なお、本実施形態の表面シート10の底部21の非肌対向面21bには、スキンケア剤13が実質的に付着していないか、又は側壁部3の肌対向面3aに比して顕著に少ない量しかスキンケア剤が付着していない。
As shown in FIGS. 3 and 4, the amount of the skin care agent 13 on the side wall portion 3 is such that the thickness (T) of the topsheet 10 when no pressure is applied is divided into three equal parts, and the topsheet 10 in the thickness direction. The skin care agent amount is measured by dividing the region into three regions P <b> 1 to P <b> 3 and using the portion located in the central region P <b> 2 as the side wall 3. The thickness (T) of the topsheet 10 when no pressure is applied is measured by the method described later.
The top part 12 acquires a test piece from the center part of the protrusion part 11 in planar view of the surface sheet 10, and performs the measurement of the skin care agent amount demonstrated in the Example mentioned later. Similarly, the skin care agent amount at the bottom 21 is measured by obtaining a test piece from the center of the bottom 21 in plan view of the topsheet. The amount of the skin care agent in the side wall 3 is measured by obtaining a test piece from the central region P2 (preferably an intermediate portion between the top 21 and the bottom 21).
In addition, the skin care agent 13 is not substantially attached to the non-skin facing surface 21b of the bottom portion 21 of the top sheet 10 of the present embodiment, or is significantly less than the skin facing surface 3a of the side wall portion 3. Only the amount of skin care agent is attached.
〔無加圧時の表面シートの厚み(T)及び加圧時の表面シートの厚み(Tp)の測定方法〕
KES圧縮試験機(カトーテック(株)製KES FB−3)を用い、表面シートについて、通常モードで5.0×103Paまでの圧縮特性評価を行い、無加圧時の厚み(T)と3.5×103Pa加圧時の厚み(Tp)をチャートから読み取った。
[Measurement method of the thickness (T) of the surface sheet when no pressure is applied and the thickness (T p ) of the surface sheet when the pressure is applied]
Using a KES compression tester (KES FB-3 manufactured by Kato Tech Co., Ltd.), the compression characteristics of the topsheet up to 5.0 × 10 3 Pa are evaluated in the normal mode, and the thickness (T) when no pressure is applied. And the thickness (T p ) under pressure of 3.5 × 10 3 Pa were read from the chart.
本発明で用いるスキンケア剤としては、着用者の肌に対して保護、治癒等の効能を有するものを特に制限なく用いることができる。例えば、好ましいスキンケア剤として、特許文献3に記載した下記式(I)で表されるジアミド誘導体が挙げられる。 As the skin care agent used in the present invention, those having effects such as protection and healing on the wearer's skin can be used without particular limitation. For example, as a preferable skin care agent, a diamide derivative represented by the following formula (I) described in Patent Document 3 can be mentioned.
前記の式(I)で表されるジアミド誘導体は、国際公開公報WO00/61097号に記載されている発明のジアミド誘導体であり、角質層の水分保持能力及びバリヤ機能を改善する、という薬効を有している。突出部11の頂部12や側壁部3に保持されていた当該ジアミド誘導体が、吸収性物品の着用中に着用者の肌に移行すると、油性スキンケア剤として機能し、肌のかぶれを抑制/改善することができる。 The diamide derivative represented by the above formula (I) is a diamide derivative of the invention described in International Publication No. WO00 / 61097, and has a medicinal effect of improving the water retention ability and barrier function of the stratum corneum. doing. When the diamide derivative held on the top part 12 or the side wall part 3 of the protruding part 11 shifts to the wearer's skin during wearing of the absorbent article, it functions as an oily skin care agent and suppresses / improves skin irritation. be able to.
前記のジアミド誘導体を使用する場合、使用するジアミド誘導体は1種のみであってもよいし、2種以上を併用することもできる。 When using the said diamide derivative, the diamide derivative to be used may be only 1 type, and can also use 2 or more types together.
また、本発明で使用し得る他のスキンケア剤としては、例えば化粧品の分野においてエモリエント剤として用いられている油性スキンケア剤等を用いることができる。
前記他のスキンケア剤の具体例としては、流動パラフィン、シリコーンオイル、動植物油(オリーブ油、ホオバ油、ベニバナ油、スクワラン及びスクワレン等)、モノグリセライド、ジグリセライド、トリグリセライド、脂肪族エーテル(ミリスチル−1,3−ジメチルブチルエーテル、パルミチル−1,3−ジメチルブチルエーテル、ステアリル−1,3−ジメチルブチルエーテル、パルミチル−1,3−メチルプロピルエーテル、ステアリル−1,3−メチルプロピルエーテル等)、イソステアリル−コレステロールエステル、パラフィンワックス、C12〜C22脂肪酸、C12〜C44脂肪酸エーテル、C12〜C22脂肪アルコール、ワセリン、脂肪酸ソルビタンエステル(モノエステル、ジエステル、及びトリエステルのいずれでもよい。)、ポリオキシエチレン脂肪酸ソルビタンエステル(モノエステル、ジエステル、及びトリエステルのいずれでもよい。)、金属石験(ステアリン酸マグネシウム等)、ショ糖脂肪酸エステル、シクロデキストリン脂肪酸エステル、シリコーン、シリコーン系レジン、特許文献1又は特許文献2に記載されている発明で使用されるエモリエント剤やエモリエント剤と固定化剤を含むローション組成物等が挙げられる。
前記各種のスキンケア剤は、1種を単独で使用しても良いし、2種以上を併用しても良い。
Moreover, as another skin care agent which can be used by this invention, the oil-based skin care agent etc. which are used as an emollient agent in the field | area of cosmetics can be used, for example.
Specific examples of the other skin care agents include liquid paraffin, silicone oil, animal and vegetable oils (olive oil, jojoba oil, safflower oil, squalane and squalene, etc.), monoglyceride, diglyceride, triglyceride, aliphatic ether (myristyl-1,3- Dimethylbutyl ether, palmityl-1,3-dimethylbutyl ether, stearyl-1,3-dimethylbutyl ether, palmityl-1,3-methylpropyl ether, stearyl-1,3-methylpropyl ether, etc.), isostearyl-cholesterol ester, paraffin waxes, C 12 -C 22 fatty acids, C 12 -C 44 fatty ethers, C 12 -C 22 fatty alcohols, vaseline, fatty acid sorbitan esters (monoesters, diesters, and may be any of triester. , Polyoxyethylene fatty acid sorbitan ester (any of monoester, diester and triester), metal exploration (magnesium stearate etc.), sucrose fatty acid ester, cyclodextrin fatty acid ester, silicone, silicone resin, patent Examples include an emollient used in the invention described in Document 1 or Patent Document 2, and a lotion composition containing an emollient and a fixing agent.
The various skin care agents may be used alone or in combination of two or more.
表面シート10上に排泄された体液の透過性を低下させない観点から、C12〜C22脂肪アルコール(好ましくはステアリルアルコール)と、上式(I)のジアミド誘導体との混合物を好ましく用いることができる。ステアリルアルコールと上式(I)のジアミド誘導体との混合比(ステアリルアルコール/ジアミド誘導体)は、スキンケア剤の肌への移行性、スキンケア効果、使用時の感触、及び表面シートへ体液の透過性の観点から、90/10〜50/50(質量%)であること好ましい。これらの混合物は、加熱してその流動性を高めてから、不織布10’に適用することが好ましい。不織布10’に付着させた後は、常温で放置することにより、流動性を低下させて、表面シート10に保持され易くする。 From the viewpoint of not lowering the permeability of excreted body fluid on the topsheet 10, C 12 -C 22 fatty alcohols (preferably stearyl alcohol), it can be preferably used a mixture of diamide derivative of the above formula (I) . The mixing ratio of stearyl alcohol to the diamide derivative of the above formula (I) (stearyl alcohol / diamide derivative) has the ability to transfer the skin care agent to the skin, the skin care effect, the feel during use, and the permeability of the body fluid to the top sheet. From a viewpoint, it is preferable that it is 90 / 10-50 / 50 (mass%). These mixtures are preferably applied to the nonwoven fabric 10 'after heating to increase its fluidity. After adhering to the nonwoven fabric 10 ′, it is left at room temperature to reduce the fluidity and make it easier to hold on the topsheet 10.
本実施形態のおむつ1は、通常の展開型おむつと同様にして装着して使用することができる。なお、表面シート10は、突出部11が突出する面を肌に向けると共に凹状の底部21を吸収体40に接触ないし近接させた状態でおむつ1に組み込まれている。また、表面シート10は、そのX方向が、おむつ1の長手方向(X’方向)又は幅方向(Y’方向)に一致していることが好ましいが、それに限られるものではない。 The diaper 1 of this embodiment can be mounted and used in the same manner as a normal unfolded diaper. The topsheet 10 is incorporated in the diaper 1 with the surface from which the protruding portion 11 protrudes facing the skin and the concave bottom portion 21 in contact with or close to the absorber 40. Moreover, although it is preferable that the X direction of the surface sheet 10 corresponds with the longitudinal direction (X 'direction) or the width direction (Y' direction) of the diaper 1, it is not restricted to it.
本実施形態のおむつ1における表面シート10は、着用者の肌に接する、突出部11の頂部12の肌対向面12aに、スキンケア剤13が保持されているため、スキンケア剤13の肌への移行性が高く、優れたスキンケア効果が得られる。
しかも、頂部12の非肌対向面12bにもスキンケア剤13が存在することにより、突出部11が肌に押圧されたときにも、肌対向面12a側のスキンケア剤が非対向面側12bに移動しにくい。そのため、頂部12の肌当接面12aにスキンケア剤が安定的に保持され、スキンケア効果の持続性等にも優れている。
また、頂部12の非肌対向面12bに存在するスキンケア剤13の量が、肌対向面12aに比して少量であるため、表面シート10に残されるスキンケア剤13を少なくすることができ、表面シート10全体として少量のスキンケア剤13を塗布しておくことで有効量を効率的に肌へ移行させることができる。
In the diaper 1 of the present embodiment, the skin sheet 13 is held on the skin facing surface 12a of the top portion 12 of the protruding portion 11 that is in contact with the skin of the wearer, and therefore the skin care agent 13 is transferred to the skin. High in skin properties and excellent skin care effects.
Moreover, since the skin care agent 13 is also present on the non-skin facing surface 12b of the top portion 12, the skin care agent on the skin facing surface 12a side moves to the non-facing surface side 12b even when the protruding portion 11 is pressed against the skin. Hard to do. Therefore, the skin care agent is stably held on the skin contact surface 12a of the top portion 12, and the durability of the skin care effect is excellent.
Further, since the amount of the skin care agent 13 present on the non-skin facing surface 12b of the top portion 12 is smaller than that of the skin facing surface 12a, the skin care agent 13 left on the top sheet 10 can be reduced, and the surface An effective amount can be efficiently transferred to the skin by applying a small amount of the skin care agent 13 to the sheet 10 as a whole.
また、本実施形態のおむつ1における表面シート10は、側壁部3の肌対向面3aにもスキンケア剤13が保持されているため、表面シート10全体としてはベタつかせずにスキンケア剤13の保持量を多くできる。これと共に、突出部11が肌に押圧されたときも、肌に触れにくい側壁部3に塗付されたスキンケア剤13が側壁部3にとどまっていることによって、頂部12のスキンケア剤13が側壁部3に移動しにくくなり、頂部12の肌当接面12aにスキンケア剤13が一層安定的に保持される。更に、底部21の肌対向面21aに、側壁部3の肌対向面3aと同程度の量のスキンケア剤13が保持されていると、着用者の動きなどに起因して、側壁部3が肌に押圧されて側壁部3に塗布されているスキンケア剤13が体温で流動しやすくなったときにも、底部21の肌対向面21aのスキンケア剤は固定されたままであるため、底部21に対して側壁部3の肌対向面3aのスキンケア剤13が移動しにくくなり、頂部12のスキンケア剤13が一層安定的に保持される。
しかも、側壁部3におけるスキンケア剤量が、頂部12の肌対向面12aに比して少量であるため、スキンケア剤13が油性であったり、親水性を低下させ易いものであったり、又は液の透過性を低下させ易いものであったりする場合にも、側壁部3が比較的良好な液透過性を維持する。そのため、排泄後にすばやく液を吸収し、液漏れを防止することができる。
Moreover, since the skin care agent 13 is hold | maintained also in the skin opposing surface 3a of the side wall part 3, the surface sheet 10 in the diaper 1 of this embodiment is the amount of retention of the skin care agent 13 without leaving the surface sheet 10 as a whole. Can do more. At the same time, even when the protruding portion 11 is pressed against the skin, the skin care agent 13 applied to the side wall portion 3 that is difficult to touch the skin remains on the side wall portion 3, so that the skin care agent 13 of the top portion 12 becomes the side wall portion. 3, and the skin care agent 13 is more stably held on the skin contact surface 12 a of the top portion 12. Further, when the skin care agent 13 having the same amount as the skin facing surface 3a of the side wall 3 is held on the skin facing surface 21a of the bottom portion 21, the side wall 3 is caused by the movement of the wearer. Even when the skin care agent 13 applied to the side wall portion 3 by being pressed by the body becomes easy to flow at body temperature, the skin care agent on the skin facing surface 21a of the bottom portion 21 remains fixed. The skin care agent 13 on the skin-facing surface 3a of the side wall 3 is less likely to move, and the skin care agent 13 on the top 12 is more stably held.
And since the amount of the skin care agent in the side wall part 3 is small compared with the skin opposing surface 12a of the top part 12, the skin care agent 13 is an oily thing, or it is easy to reduce hydrophilicity, or a liquid Even when the permeability is likely to be lowered, the side wall 3 maintains a relatively good liquid permeability. Therefore, liquid can be absorbed quickly after excretion and liquid leakage can be prevented.
表面シート10は、排泄された液を円滑に吸収体へ透過させる特性が要求される。表面シート10が撥水性であると液の透過を円滑に行うことができない。この目的のために、表面シート10に親水化処理を施すことが好ましい。親水化処理を施すことは、表面シート10のイオン交換水との接触角を小さくすることにつながる。水との接触角はその値が小さいほど親水性が高いことを意味する。この接触角について本発明者らが検討したところ、表面シート10にスキンケア剤が、上述した状態で付着していると、接触角を容易に小さくできることが判明した。具体的には、表面シート10の突出部11が、その頂部12における非肌対向面よりも、肌対向面の方が、単位面積当たりのスキンケア剤量が多い場合、表面シート10とイオン交換水との接触角が、好ましくは55度以上90度以下、更に好ましくは60度以上90度以下、一層好ましくは60度以上75度以下となりやすくなる。この接触角の範囲は、表面シートが液を円滑に透過する範囲である。 The surface sheet 10 is required to have a characteristic of allowing the excreted liquid to smoothly pass through the absorber. If the top sheet 10 is water repellent, the liquid cannot be smoothly transmitted. For this purpose, the surface sheet 10 is preferably subjected to a hydrophilic treatment. Applying the hydrophilic treatment leads to reducing the contact angle of the topsheet 10 with the ion exchange water. The smaller the value of the contact angle with water, the higher the hydrophilicity. When the present inventors examined this contact angle, it was found that the contact angle can be easily reduced when the skin care agent adheres to the top sheet 10 in the state described above. Specifically, when the protruding portion 11 of the top sheet 10 has a larger amount of skin care agent per unit area on the skin facing surface than the non-skin facing surface at the top portion 12, the top sheet 10 and ion-exchanged water are used. Is preferably 55 ° to 90 °, more preferably 60 ° to 90 °, and even more preferably 60 ° to 75 °. The range of the contact angle is a range in which the top sheet can smoothly transmit the liquid.
特に、スキンケア剤が、上式(I)のジアミド誘導体及びステアリルアルコールを含み、ステアリルアルコール/ジアミド誘導体の質量比が、90/10〜50/50であると、前記接触角を、容易に前記範囲内に調整することができる。 In particular, when the skin care agent contains the diamide derivative of the above formula (I) and stearyl alcohol, and the mass ratio of stearyl alcohol / diamide derivative is 90/10 to 50/50, the contact angle can be easily adjusted to the above range. Can be adjusted in.
接触角の具体的な測定方法は次のとおりである。接触角の測定には、例えば協和界面科学株式会社製の接触角計MCA−Jを用いる。具体的には、スキンケア剤が施された表面シート10上に、イオン交換水を滴下(約20ピコリットル)した後、直ちに前記接触角計を用いて接触角度の測定を行う。測定は、表面シートの5箇所以上の箇所で行い、それらの平均値を接触角とする。測定温度は22℃とする。 A specific method for measuring the contact angle is as follows. For the measurement of the contact angle, for example, a contact angle meter MCA-J manufactured by Kyowa Interface Science Co., Ltd. is used. Specifically, after the ion-exchanged water is dropped (about 20 picoliters) on the surface sheet 10 to which the skin care agent has been applied, the contact angle is measured immediately using the contact angle meter. The measurement is performed at five or more locations on the surface sheet, and the average value thereof is used as the contact angle. The measurement temperature is 22 ° C.
表面シート10を構成する不織布は、その全体が、繊度が等しい単一種類の繊維からなるものであっても良いし、繊度が異なる複数種類の繊維からなるものであっても良い。
また、肌対向面と非肌対向面とで、構成繊維の繊度を異ならせることも好ましい。例えば、一台のカード機で、繊維径の細い繊維からなる第1繊維ウェブを形成した後、その上に、他のカード機で製造した繊維径が太い繊維からなる第2繊維ウェブを合流させ、得られた積層ウェブを、後述するウェブ賦形装置5に第1繊維ウェブ側を台座53側に向けて導入することにより、非肌対向面よりも肌対向面の方が構成繊維の繊度が小さい表面シートが得られる。
非肌対向面よりも肌対向面の方が構成繊維の繊度(繊維径)が小さいことで、柔軟な面にスキンケア剤を保持でき、肌にやさしくフィットさせて、スキンケア剤を肌に移行させやすくすることができる。
The whole nonwoven fabric constituting the top sheet 10 may be composed of a single type of fibers having the same fineness, or may be composed of a plurality of types of fibers having different finenesses.
It is also preferable to make the fineness of the constituent fibers different between the skin facing surface and the non-skin facing surface. For example, after forming a first fiber web made of fibers with a small fiber diameter on one card machine, a second fiber web made of fibers with a large fiber diameter produced by another card machine is joined on it. By introducing the obtained laminated web into the web shaping device 5 described later with the first fiber web side facing the pedestal 53 side, the fineness of the constituent fibers is greater on the skin facing surface than on the non-skin facing surface. A small surface sheet is obtained.
The skin-facing surface has a smaller fineness (fiber diameter) than the non-skin-facing surface, so the skin care agent can be held on a soft surface and fits easily on the skin, making it easier to transfer the skin care agent to the skin. can do.
本実施形態における表面シート10は、例えば、上述した立体形状を有する不織布10’に、スキンケア剤13を、突出部11の頂部12の肌対向面12aに非肌対向面12bよりも多く付着するように適用することにより得られる。
好ましい製造方法の一例を示すと、図7に示すように、カード機51により所定の厚みとなるように形成した繊維ウェブ10Aを、多数の突起52を有し通気性を有する台座53を備えたウェブ賦形装置5に供給する。ウェブ賦形装置5においては、台座53上に供給した繊維ウェブ10Aに対して風54を吹き付けて、該繊維ウェブ10Aを、突起52を有する台座53の表面形状に概ね沿った形状に変形させる。風54の温度T1は、繊維ウェブを構成する熱可塑性繊維、例えば芯鞘型複合繊維の鞘成分である低融点成分の融点Mpよりも50℃低い温度以上で、かつこの融点よりも10℃高い温度以下に設定することができる(すなわち、Mp−50〜Mp+10)。次いで、その台座53上の繊維ウェブ10Aに、熱風55を吹き付け、繊維ウェブを、より突起52に沿った形状に変形させると共に繊維の交点を熱融着させて、立体形状に賦形する。この熱風55の温度T2は、風54の温度T1よりも高いことを条件として、繊維ウェブを構成する熱可塑性繊維、例えば芯鞘型複合繊維の鞘成分である低融点成分の融点Mpに対して0〜70℃高いことが好ましく、5〜50℃高いことがより好ましい。
For example, the surface sheet 10 in the present embodiment adheres more skin care agent 13 to the skin facing surface 12a of the top portion 12 of the protrusion 11 than the non-skin facing surface 12b on the nonwoven fabric 10 ′ having the above-described three-dimensional shape. It is obtained by applying to.
An example of a preferable manufacturing method is shown in FIG. 7. As shown in FIG. 7, a fiber web 10 </ b> A formed to have a predetermined thickness by a card machine 51 is provided with a base 53 having a large number of protrusions 52 and air permeability. The web shaping device 5 is supplied. In the web shaping device 5, the wind 54 is blown against the fiber web 10 </ b> A supplied on the pedestal 53, and the fiber web 10 </ b> A is deformed into a shape generally along the surface shape of the pedestal 53 having the protrusions 52. The temperature T 1 of the wind 54 is at least 50 ° C. lower than the melting point Mp of the low melting point component which is the sheath component of the thermoplastic fiber constituting the fiber web, for example, the core-sheath type composite fiber, and 10 ° C. above this melting point. It can be set below the high temperature (that is, Mp-50 to Mp + 10). Next, hot air 55 is blown onto the fiber web 10A on the pedestal 53 to deform the fiber web into a shape along the protrusions 52 and heat-bond the intersections of the fibers to form a three-dimensional shape. On the condition that the temperature T 2 of the hot air 55 is higher than the temperature T 1 of the air 54, the melting point Mp of the low melting point component which is the sheath component of the thermoplastic fiber constituting the fiber web, for example, the core-sheath type composite fiber, is set. On the other hand, it is preferably 0 to 70 ° C., more preferably 5 to 50 ° C.
熱可塑性繊維としては、例えば、ポリプロピレン、ポリエチレン等のポリオレフィン系、ポリエステル系、ナイロン6、ナイロン66等のポリアミド系、ポリアクリルニトリル系等、又はこれら2種類以上からなる芯鞘型、サイドバイサイド型の複合繊維等を挙げることができる。熱可塑性繊維として、低融点成分及び高融点成分を含む複合繊維を用いる場合、繊維ウェブに吹き付ける熱風の温度は、低融点成分の融点以上で、かつ高融点成分の融点未満であることが好ましい。繊維ウェブに吹き付ける熱風の温度は、低融点成分の融点+0℃〜高融点成分の融点−10℃であることがより好ましく、低融点成分の融点+5℃〜高融点成分の融点−20℃であることが更に好ましい。繊維ウェブ及び不織布は、熱可塑性繊維を、30〜100質量%含んでいることが好ましく、より好ましくは40〜80質量%である。繊維ウェブ及び不織布は、本来的に熱融着性を有さない繊維(例えばコットンやパルプ等の天然繊維、レーヨンやアセテート繊維など)を含んでいてもよい。
繊維ウェブを賦形する際の熱風の風速は、賦形性と風合いの観点から20〜130m/秒とすることがより好ましく、より好ましくは30〜100m/秒である。風速がこの下限値以上であれば立体感が十分となり、クッション性と排泄物の捕集性の効果が十分に発揮され好ましい。風速がこの上限値以下であれば繊維ウェブが開孔せず、耐圧縮性が良好に維持されるため、クッション性と排泄物の捕集性の効果が十分に発揮でき好ましい。
なお、図7に示す例においては、連続生産を考慮し、台座53をコンベア式のものとし、また、立体形状を賦形された不織布10’を、ロール57で巻き取っている。
Examples of the thermoplastic fiber include polyolefins such as polypropylene and polyethylene, polyesters, polyamides such as nylon 6 and nylon 66, polyacrylonitriles, etc., or a core-sheath type or a side-by-side type composite composed of two or more of these. A fiber etc. can be mentioned. When a composite fiber containing a low melting point component and a high melting point component is used as the thermoplastic fiber, the temperature of the hot air blown onto the fiber web is preferably equal to or higher than the melting point of the low melting point component and lower than the melting point of the high melting point component. The temperature of the hot air blown onto the fiber web is more preferably the melting point of the low melting point component + 0 ° C. to the melting point of the high melting point component −10 ° C., and the melting point of the low melting point component + 5 ° C. to the melting point of the high melting point component −20 ° C. More preferably. The fiber web and the nonwoven fabric preferably contain 30 to 100% by mass of thermoplastic fibers, and more preferably 40 to 80% by mass. The fiber web and the nonwoven fabric may contain fibers that do not inherently have heat-fusibility (for example, natural fibers such as cotton and pulp, rayon, and acetate fibers).
The wind speed of the hot air when shaping the fiber web is more preferably 20 to 130 m / sec, more preferably 30 to 100 m / sec, from the viewpoints of shapeability and texture. If the wind speed is equal to or higher than this lower limit, the three-dimensional effect is sufficient, and the effects of cushioning and excrement collection are sufficiently exhibited. If the wind speed is less than or equal to this upper limit value, the fiber web does not open and compression resistance is maintained well, which is preferable because the effects of cushioning and excrement collection can be sufficiently exhibited.
In the example shown in FIG. 7, in consideration of continuous production, the pedestal 53 is a conveyor type, and the nonwoven fabric 10 ′ having a three-dimensional shape is wound up by a roll 57.
不織布に用いることができる繊維材料は特に限定されない。具体的には、下記の繊維などが挙げられる。ポリエチレン(PE)繊維、ポリプロピレン(PP)繊維等のポリオレフィン繊維;ポリエチレンテレフタレート(PET)、ポリアミド等の熱可塑性樹脂を単独で用いてなる繊維;芯鞘型、サイドバイサイド型等の構造の複合繊維、例えば鞘成分がポリエチレン又は低融点ポリプロピレンである芯鞘構造の繊維が好ましく挙げられ、該芯/鞘構造の繊維の代表例としては、PET(芯)/PE(鞘)、PP(芯)/PE(鞘)、PP(芯)/低融点PP(鞘)等の芯鞘構造の繊維。更に具体的には、前記構成繊維は、ポリエチレン繊維、ポリプロピレン繊維等のポリオレフィン系繊維、ポリエチレン複合繊維、ポリプロピレン複合繊維を含むのが好ましい。ここで、該ポリエチレン複合繊維の複合組成は、ポリエチレンテレフタレート/ポリエチレンであり、該ポリプロピレン複合繊維の複合組成が、ポリエチレンテレフタレート/低融点ポリプロピレンであるのが好ましく、より具体的には、PET(芯)/PE(鞘)、PET(芯)/低融点PP(鞘)が挙げられる。また、これらの繊維は、単独で用いて不織布を構成してもよいが、2種以上を組み合わせて用いることもできる。 The fiber material that can be used for the nonwoven fabric is not particularly limited. Specific examples include the following fibers. Polyolefin fibers such as polyethylene (PE) fibers and polypropylene (PP) fibers; fibers using a thermoplastic resin such as polyethylene terephthalate (PET) and polyamide alone; composite fibers having a structure such as a core-sheath type and a side-by-side type, such as A core-sheath structure fiber in which the sheath component is polyethylene or low-melting-point polypropylene is preferable, and typical examples of the core / sheath structure fiber include PET (core) / PE (sheath), PP (core) / PE ( Sheath), fibers having a core-sheath structure such as PP (core) / low melting point PP (sheath). More specifically, the constituent fibers preferably include polyolefin fibers such as polyethylene fibers and polypropylene fibers, polyethylene composite fibers, and polypropylene composite fibers. Here, the composite composition of the polyethylene composite fiber is polyethylene terephthalate / polyethylene, and the composite composition of the polypropylene composite fiber is preferably polyethylene terephthalate / low melting point polypropylene, and more specifically, PET (core). / PE (sheath), PET (core) / low melting point PP (sheath). These fibers may be used alone to form a nonwoven fabric, but may be used in combination of two or more.
得られた不織布10’は、突出部11の頂部12における繊維密度が、底部21における繊維密度よりも小さい。これにより、突出部11においては押圧に対して適度に良好な肌当たりが得られる。一方、凹状の底部21は潰れにくく、排泄物を捕集した後の保形成に優れ、型崩れせずに良好なクッション性と捕集物の拡散防止性に優れる。また、側壁部3の繊維密度は、突出部11の頂部12の繊維密度と底部21の繊維密度との中間の繊維密度を有する。
繊維密度は、1mm2当たりの繊維本数を計測することで評価した。つまり、1mm2当たりの繊維本数が多いほど繊維密度は高いことになる。
突出部の頂部における繊維密度は前記理由から、30本/mm2〜130本/mm2が好ましく、50本/mm2〜100本/mm2がより好ましい。底部21における繊維密度は前記理由から、250本/mm2〜500本/mm2が好ましく、300本/mm2〜450本/mm2がより好ましい。また、突出部における繊維密度と底部21における繊維密度の差は、150本/mm2以上であることが好ましい。
<繊維密度の測定>
不織布部分の切断面を、顕微鏡を用いて拡大観察(150〜500倍)し、1mm2当たりの前記切断面によって切断されている繊維の断面の数を数え、これを繊維密度とした。
顕微鏡;日本電子(株)社製のJCM−5100(商品名)
In the obtained nonwoven fabric 10 ′, the fiber density at the top portion 12 of the protruding portion 11 is smaller than the fiber density at the bottom portion 21. Thereby, in the protrusion part 11, moderately favorable skin contact with respect to a press is obtained. On the other hand, the concave bottom portion 21 is not easily crushed, is excellent in retention after excrement is collected, is excellent in cushioning properties, and is excellent in diffusion prevention of the collected matter without being deformed. Moreover, the fiber density of the side wall part 3 has an intermediate fiber density between the fiber density of the top part 12 of the protrusion part 11 and the fiber density of the bottom part 21.
The fiber density was evaluated by measuring the number of fibers per 1 mm 2 . That is, as the number of fibers per 1 mm 2 is larger, the fiber density is higher.
From the density of the fiber the reasons at the top of the projecting portion is preferably 30 present / mm 2 to 130 DEG present / mm 2, more preferably 50 lines / mm 2 to 100 present / mm 2. The fiber density at the bottom portion 21 from the reason, preferably 250 lines / mm 2 to 500 present / mm 2, 300 present / mm 2 to 450 present / mm 2 is more preferable. Moreover, it is preferable that the difference of the fiber density in a protrusion part and the fiber density in the bottom part 21 is 150 pieces / mm < 2 > or more.
<Measurement of fiber density>
The cut surface of the nonwoven fabric portion was magnified and observed using a microscope (150 to 500 times), the number of cross sections of the fibers cut by the cut surface per 1 mm 2 was counted, and this was taken as the fiber density.
Microscope: JCM-5100 (trade name) manufactured by JEOL Ltd.
次いで、得られた不織布10’にスキンケア剤13を付与する。その際には、突出部11の頂部12の肌対向面12aに優先的にスキンケア剤13を付着させる。
具体的には、例えば、図8(a)に示すように、不織布10’を、通気性のコンベア56上に、直接又は吸収体連続体等の通気性部材40Aを介在させて導入し、該コンベア5で不織布10’を搬送しつつ、該不織布10’に対し、突出部11が突出する面側から、加熱や溶液として流動性を高めたスキンケア剤13をスプレーする方法がある。
この方法によれば、図8(b)に示すように、スキンケア剤13を含む空気6が、繊維密度が低い突出部11の頂部12を貫通して大量に流れる一方、繊維密度が高い底部21には、スキンケア剤13を含む空気6が殆ど流れない。繊維密度が中間の側壁部3には、スキンケア剤13を含む空気6が、頂部12に比して少量流れる。
これにより、頂部12の肌対向面12aには、多量のスキンケア剤が付着すると共に、頂部12を貫通して頂部12の非肌対向面12bにも少量のスキンケア剤が付着する。また、側壁部3にも、頂部12の肌対向面12aに比して少量のスキンケア剤が付着する。このようにして、前述した表面シート10が得られる。
Next, a skin care agent 13 is applied to the obtained nonwoven fabric 10 ′. At that time, the skin care agent 13 is preferentially attached to the skin facing surface 12 a of the top 12 of the protrusion 11.
Specifically, for example, as shown in FIG. 8 (a), the nonwoven fabric 10 ′ is introduced directly or through a breathable member 40A such as an absorbent continuum on the breathable conveyor 56, There is a method of spraying the skin care agent 13 with improved fluidity as a heating or solution from the surface side from which the protruding portion 11 protrudes to the nonwoven fabric 10 ′ while conveying the nonwoven fabric 10 ′ with the conveyor 5.
According to this method, as shown in FIG. 8B, the air 6 containing the skin care agent 13 flows in a large amount through the top portion 12 of the protruding portion 11 having a low fiber density, while the bottom portion 21 having a high fiber density. The air 6 containing the skin care agent 13 hardly flows. A small amount of air 6 containing the skin care agent 13 flows in the side wall portion 3 having an intermediate fiber density as compared with the top portion 12.
Thereby, a large amount of skin care agent adheres to the skin facing surface 12a of the top portion 12, and a small amount of skin care agent also adheres to the non-skin facing surface 12b of the top portion 12 through the top portion 12. A small amount of skin care agent also adheres to the side wall portion 3 as compared with the skin facing surface 12 a of the top portion 12. Thus, the surface sheet 10 mentioned above is obtained.
表面シート10は、3.5×103Paの加圧条件下の厚さ(Tp)が、非加圧時の厚さ(T)の20〜70%であることが好ましく、30〜60%であることがより好ましい。前記上限値以下であれば、着用者の動きや着座をしたときに柔軟に変形し、硬さを感じ難いため好ましい。前記下限値以上であれば、不織布が完全に潰れてしまうことがなく、その立体形状が保持できるため、排泄物の捕集性等が十分に発揮できる。加圧条件下の厚さ(Tp)の測定方法は、先に述べたとおりである。 The surface sheet 10 preferably has a thickness (T p ) under a pressure of 3.5 × 10 3 Pa that is 20 to 70% of the thickness (T) under non-pressurization, 30 to 60 % Is more preferable. If it is below the upper limit value, it is preferable because it deforms flexibly when the wearer moves or sits down and hardly feels hardness. If it is more than the said lower limit, since a nonwoven fabric will not be crushed completely and the solid shape can be hold | maintained, the collection property of excretion, etc. can fully be exhibited. The method for measuring the thickness (T p ) under pressure is as described above.
本実施形態の表面シート10においては、突出部11における繊維融着点数(n1)が底部21における繊維融着点数(n2)よりも少ない。これにより、突出部11においては押圧に対して適度に潰れ良好な肌当たりを実現することができる。一方、凹状の底部21は潰れにくく、排泄物を捕集した後の保形性に優れ、型崩れせずに良好なクッション性と捕集物の拡散防止性に優れる。繊維融着点数は、1mm2当たりの繊維の融着点数を数えることで導いた。繊維融着点数n1は前記理由から、30個/mm2〜130個/mm2が好ましく、50個/mm2〜100個/mm2がより好ましい。繊維融着点数n2は前記理由から、250個/mm2〜500個/mm2が好ましく、300個/mm2〜450個/mm2がより好ましい。
<繊維融着点数の測定>
不織布部分の切断面を、顕微鏡を用いて拡大観察(50〜150倍)し、1mm2当たりの繊維の融着点数を数えることで導いた。
・顕微鏡;日本電子(株)社製のJCM−5100(商品名)
In the topsheet 10 of the present embodiment, the number of fiber fusion points (n 1 ) in the protruding portion 11 is less than the number of fiber fusion points (n 2 ) in the bottom portion 21. Thereby, in the protrusion part 11, it can be crushed moderately with respect to a press, and the favorable skin contact can be implement | achieved. On the other hand, the concave bottom portion 21 is not easily crushed, has excellent shape retention after collecting excrement, and has excellent cushioning properties and excellent antidiffusion properties of the collected material without collapsing. The number of fiber fusion points was derived by counting the number of fiber fusion points per 1 mm 2 . The number of fiber fusion points n 1 is preferably 30 pieces / mm 2 to 130 pieces / mm 2 and more preferably 50 pieces / mm 2 to 100 pieces / mm 2 for the above reasons. The number of fiber fusion points n 2 is preferably 250 pieces / mm 2 to 500 pieces / mm 2 , and more preferably 300 pieces / mm 2 to 450 pieces / mm 2 for the above reasons.
<Measurement of the number of fiber fusion points>
The cut surface of the nonwoven fabric portion was magnified and observed (50 to 150 times) using a microscope, and was derived by counting the number of fiber fusion points per 1 mm 2 .
Microscope: JCM-5100 (trade name) manufactured by JEOL Ltd.
本実施形態の表面シート10の厚さは、2mm〜6mmが好ましく、3mm〜5mmがより好ましい。また、表面シート10の坪量は、15〜50g/m2であることが好ましく、20〜40g/m2がより好ましい。 2 mm-6 mm are preferable, and, as for the thickness of the surface sheet 10 of this embodiment, 3 mm-5 mm are more preferable. The basis weight of the topsheet 10 is preferably 15~50g / m 2, 20~40g / m 2 is more preferable.
以上、本発明をその好ましい実施形態に基づき説明したが、本発明は前記の各実施形態に制限されず、本発明の趣旨を逸脱しない範囲において種々の変更が可能である。
例えば、スキンケア剤の塗工方法は、前記のもの以外の多様な方法を選択することができる。例えば、塗工方式としては、ダイスコーター方式、スロットスプレー方式、カーテンスプレー方式、メルトブローン方式、スパイラルスプレー方式、グラビア方式、ビード方式等が挙げられる。
また、表面シートの基材となる立体形状に賦形された不織布の肌対向面と非肌対向面とに、それぞれの側から同時に又は順次、スキンケア剤を塗工することもできる。
As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to each said embodiment, A various change is possible in the range which does not deviate from the meaning of this invention.
For example, various methods other than those described above can be selected as the method for applying the skin care agent. For example, examples of the coating method include a die coater method, a slot spray method, a curtain spray method, a melt blown method, a spiral spray method, a gravure method, and a bead method.
Moreover, the skin care agent can also be applied simultaneously or sequentially from the respective sides to the skin facing surface and the non-skin facing surface of the nonwoven fabric shaped into a three-dimensional shape as a base material for the topsheet.
また、上述した実施形態においては、表面シート10の底部21が、肌側に向けて凹の凹曲面状を有していたが、底部21は平板状であっても良い。例えば、平板状の底部から、円錐台又は円柱状の突出部が突出し、かつ該突出部の頂部が凸曲面状になされていても良い。
また、表面シートは、スキンケア剤を保持した突出部が全域に分布しているものに限られず、図2中のX方向及び/又はY方向の一部のみに突出部が分布しているものであっても良い。例えば、図9に示すおむつの表面シート10における斜線部の範囲のみに突出部が分布していても良いし、表面シート10の全面に突出部が分布しているが、そのうちの斜線部の範囲内の突出部のみにスキンケア剤が保持されていても良い。
In the embodiment described above, the bottom portion 21 of the topsheet 10 has a concave curved surface shape that is concave toward the skin side, but the bottom portion 21 may be flat. For example, a truncated cone or a columnar protrusion may protrude from the flat bottom, and the top of the protrusion may be a convex curved surface.
Further, the surface sheet is not limited to the one in which the protrusions holding the skin care agent are distributed over the entire area, and the protrusions are distributed only in a part of the X direction and / or the Y direction in FIG. There may be. For example, the protrusions may be distributed only in the range of the hatched portion in the topsheet 10 of the diaper shown in FIG. 9, or the protrusions are distributed over the entire surface of the topsheet 10, but the range of the hatched portion thereof The skin care agent may be held only in the protruding portion inside.
以下、実施例により本発明を更に詳細に説明する。しかしながら本発明の範囲は、かかる実施例に制限されない。 Hereinafter, the present invention will be described in more detail with reference to examples. However, the scope of the present invention is not limited to such examples.
〔実施例1〕
(立体シートの製造)
(1)不織布の作製
芯がポリエチレンテレフタレートで鞘がポリエチレンからなる2.4dtex×51mmの芯鞘型複合繊維を用い、坪量が27g/m2であるウェブをカード機によって製造した。鞘成分であるポリエチレンの融点Mpは132℃であった。このウェブを図7に示すウェブ賦形装置5に供給した。ウェブ賦形装置5では、前記繊維ウェブに風(温度T1:100℃、風速55m/秒)を吹き付けて該繊維ウェブを、多数の突起を有し通気性を有する台座53(MD方向ピッチ10mm、CD方向ピッチ5mm)の上に定着させた。次いで、その台座53上の繊維ウェブに熱風(温度T2:160℃、風速40m/秒)を吹き付けて、前記台座上の突起に沿って繊維ウェブを賦形すると共に、各芯鞘構造の繊維を融着させた。このように熱融着して賦形した不織布10’を得た。
不織布10’の断面をキーエンス製デジタルマイクロスコープVHX−1000により20倍で撮像した図面代用写真を図10に載せる。図11に示したのは、3.5×103
Paで押圧したときの不織布10’断面の形状である。またこの不織布10’を、肌対向面側から撮影した写真を図12に示した。図10の写真中、上方が突出部11側であり、下方が凹状の底部21側である。なお、本実施例においては、MD方向を、図2に示したXの方向に向けて不織布10’を製造した。
(2)スキンケア剤の塗工
製造した不織布10’に、図8(a)に示すようにして、下記の条件でスキンケア剤を、突出部11を有する側からスプレー塗工した。
スキンケア剤の組成:前記式(I)で表されるジアミド誘導体とステアリルアルコール(St−OH)との質量比5:5の等量混合物
前記式(I)で表されるジアミド誘導体としては、下式(II)で表されるジアミド誘導体を用いた。
[Example 1]
(Manufacture of three-dimensional sheet)
(1) Production of non-woven fabric A 2.4 dtex × 51 mm core-sheath type composite fiber having a core of polyethylene terephthalate and a sheath of polyethylene was used, and a web having a basis weight of 27 g / m 2 was manufactured by a card machine. The melting point Mp of polyethylene as the sheath component was 132 ° C. This web was supplied to the web shaping apparatus 5 shown in FIG. In the web shaping device 5, wind (temperature T 1 : 100 ° C., wind speed 55 m / sec) is blown onto the fiber web, and the fiber web is pedestal 53 (MD pitch 10 mm) having a large number of protrusions and air permeability. , CD direction pitch 5 mm). Next, hot air (temperature T 2 : 160 ° C., wind speed 40 m / sec) is blown onto the fiber web on the pedestal 53 to shape the fiber web along the protrusions on the pedestal, and the fibers of each core-sheath structure Was fused. In this way, a nonwoven fabric 10 'shaped by heat fusion was obtained.
FIG. 10 shows a drawing-substituting photograph in which a cross section of the nonwoven fabric 10 ′ is imaged 20 times with a Keyence digital microscope VHX-1000. FIG. 11 shows 3.5 × 10 3
It is the shape of the nonwoven fabric 10 'cross section when pressed by Pa. Moreover, the photograph which image | photographed this nonwoven fabric 10 'from the skin opposing surface side was shown in FIG. In the photograph of FIG. 10, the upper side is the protrusion 11 side, and the lower side is the concave bottom 21 side. In the present example, the nonwoven fabric 10 ′ was manufactured with the MD direction oriented in the X direction shown in FIG.
(2) Coating of skin care agent As shown in Fig. 8 (a), the skin care agent was spray-coated on the manufactured nonwoven fabric 10 'from the side having the protrusions 11 under the following conditions.
Composition of skin care agent: Equivalent mixture of diamide derivative represented by formula (I) and stearyl alcohol (St-OH) in a mass ratio of 5: 5 The diamide derivative represented by formula (I) is as follows: A diamide derivative represented by the formula (II) was used.
スキンケア剤の坪量:0.5g/m2
不織布10’からスプレーガンまでの距離:50mm
ガンエア圧:0.3MPa
加工速度(不織布10’の搬送速度):50m/min
Basis weight of skin care agent: 0.5 g / m 2
Distance from nonwoven fabric 10 'to spray gun: 50mm
Gun air pressure: 0.3 MPa
Processing speed (conveying speed of nonwoven fabric 10 '): 50 m / min
(表面シートの保存方法)
(塗布直後サンプル)
スキンケア剤塗工後の表面シートを、巻き取ることなく剥離紙間に挟んだ状態で、23℃、50%RHの環境下に保存した。
(加圧保存後サンプル)
製品としてパック保存された状態(圧縮して包装袋に充填した市販状態)を想定し、スキンケア剤塗工後の表面シート10を、図13に示すように、剥離紙81,81間に挟み、約5kPaの加圧下に3日間、40℃、80%RHの環境下に保存した。図13中、82は、台紙(坪量16g/m2 の薄紙)である。その後、表面シート10を取り出し、剥離紙間に挟んだ状態で23℃、50%RHの環境下に保存した。前記の5kPaは、多数のおむつを集積し、それらを圧縮して包装袋に収容したおむつの一般的な市販状態を想定した圧力である。
(Preservation method of surface sheet)
(Sample immediately after application)
The surface sheet after the skin care agent coating was stored in an environment of 23 ° C. and 50% RH in a state of being sandwiched between release papers without being wound up.
(Sample after pressure storage)
Assuming a state of being stored in a pack as a product (commercially available state after being compressed and filled in a packaging bag), the surface sheet 10 after application of the skin care agent is sandwiched between release papers 81 and 81 as shown in FIG. It was stored in an environment of 40 ° C. and 80% RH for 3 days under a pressure of about 5 kPa. In FIG. 13, reference numeral 82 denotes a mount (thin paper having a basis weight of 16 g / m 2 ). Thereafter, the top sheet 10 was taken out and stored in an environment of 23 ° C. and 50% RH with being sandwiched between release papers. Said 5 kPa is the pressure which assumed the general commercial state of the diaper which accumulated many diapers and compressed them and stored in the packaging bag.
(スキンケア剤の測定)
加圧保存後サンプルの表面シートをはさみで切断し、1〜2mm角の測定片を得た。具体的には、各表面シートの突出部11の頂部12aから第1測定片を得た。底部21から第2測定片を得た。更に、側壁部3から第3測定片を得た。また、塗布直後サンプルの突出部11の頂部12aから同様にして第4測定片を得た。
そして、後述する方法〔赤外分光法(FT−IR)を用いる方法〕により、第1〜第4測定片のそれぞれについて、表面シート由来のC-H吸収ピーク(1400−1500cm-1)の面積S2に対する、スキンケア剤由来のアミド基の吸収ピーク(1600−1670cm-1)の面積S1の比(S1/S2,図14参照)を求めた。
各部の肌対向面の量を測定する場合は、スキャンを、測定片のそれぞれについて、肌対向面側(図3の上側)から赤外光を照射して行った。非肌対向面の量の測定する場合は、スキャンを、測定片のそれぞれについて、非肌対向面側(図3の下側)から赤外光を照射して行った。スキンケア剤量(単位面積当たり量)を対比すべき部位の測定には、同一面積の試験片を用いた。
(Measurement of skin care products)
After storing under pressure, the surface sheet of the sample was cut with scissors to obtain a 1-2 mm square measurement piece. Specifically, the 1st measurement piece was obtained from the top part 12a of the protrusion part 11 of each surface sheet. A second measurement piece was obtained from the bottom 21. Further, a third measurement piece was obtained from the side wall 3. Moreover, the 4th measurement piece was obtained similarly from the top part 12a of the protrusion part 11 of the sample immediately after application | coating.
And the area of the C—H absorption peak (1400-1500 cm −1 ) derived from the topsheet for each of the first to fourth measurement pieces by a method described later [method using infrared spectroscopy (FT-IR)]. The ratio (S1 / S2, see FIG. 14) of the area S1 of the absorption peak (1600-1670 cm −1 ) of the amide group derived from the skin care agent to S2.
When measuring the amount of the skin facing surface of each part, scanning was performed by irradiating infrared light from the skin facing surface side (upper side in FIG. 3) of each measurement piece. In the case of measuring the amount of the non-skin facing surface, scanning was performed by irradiating infrared light from the non-skin facing surface side (the lower side in FIG. 3) for each of the measurement pieces. The test piece of the same area was used for the measurement of the site | part which should contrast skin care agent amount (amount per unit area).
その結果を、図15に示した。図15に示すように、本実施例で製造した表面シートにおいては、突出部の頂部における肌対向面及び非肌対向面の両面にスキンケア剤が付着しており、また、頂部においては、非肌対向面よりも肌対向面の方に相対的に多い量のスキンケア剤が存在していることが判る。また、側壁部における肌対向面にもスキンケア剤が付着しており、側壁部の肌対向面よりも頂部の肌対向面の方に相対的に多い量のスキンケア剤が存在していることも判る。 The results are shown in FIG. As shown in FIG. 15, in the top sheet manufactured in this example, the skin care agent is attached to both the skin facing surface and the non-skin facing surface at the top of the protruding portion, and the top is non-skin It can be seen that a relatively large amount of skin care agent is present on the skin facing surface rather than the facing surface. Further, it can also be seen that the skin care agent is also attached to the skin facing surface in the side wall portion, and there is a relatively large amount of skin care agent in the top skin facing surface rather than the skin facing surface of the side wall portion. .
また、図15に示すように、スキンケア剤を塗布した直後のサンプルから頂部12の肌対向面12a側のスキンケア剤の塗布状態を測定した結果と、これとは別に、スキンケア剤を塗布したサンプルを40℃、80%RHにて、おむつ内パック圧(約5kPa)で3日間の条件で加圧保存した後に頂部12の肌対向面12a側のスキンケア剤の塗布状態を測定した結果とを比較してみると、表面シートの部位が違うために多少の差は見られるものの、ほぼ同じスキンケア剤量(ピーク面積比S1/S2)を示しており、スキンケア剤が安定的に頂部12の肌対向面12a側に存在することが判る。 Moreover, as shown in FIG. 15, the result of measuring the application state of the skin care agent on the skin facing surface 12a side of the top 12 from the sample immediately after applying the skin care agent, and a sample applied with the skin care agent separately from this result Compared to the result of measuring the application state of the skin care agent on the skin facing surface 12a side of the top 12 after storing under pressure at 40 ° C. and 80% RH for 3 days under a diaper pack pressure (about 5 kPa). Although the difference is seen because of the part of the surface sheet, it shows almost the same amount of skin care agent (peak area ratio S1 / S2), and the skin care agent is stably on the skin facing surface of the top portion 12. It can be seen that it exists on the 12a side.
〔表面シートのスキンケア剤量の測定〕
スキンケア剤の量は、赤外分光法(FT−IR)により測定した。
FT−IRから得られる赤外吸収ピークの表面シート由来の吸収ピーク面積に対する、スキンケア剤由来の吸収ピーク面積の比の比較によって、スキンケア剤が多いところと少ないところの判断が可能である。すなわち、表面シート由来の吸収ピーク面積に対する、スキンケア剤由来の吸収ピーク面積の比が大きい場合には、該比が小さい場合よりも、存在するスキンケア剤が多いと判断できる。
赤外分光法にはATR法を用いることができる。そして、直接測定することで得られる吸収ピークのうち、任意のもの(PET/PE表面シートにジアミド誘導体を塗付した場合には、表面シート由来のC-H吸収ピークである1400−1500cm-1に対する、スキンケア剤由来のアミド基の吸収ピークである1600−1670cm-1)の比を比較することで、スキンケア剤の存在の多少を判断できる。
測定装置:パーキンエルマー社 Spectrum One
波数分解能:4cm-1
積算回数:16回
[Measurement of amount of skin care agent on surface sheet]
The amount of the skin care agent was measured by infrared spectroscopy (FT-IR).
By comparing the ratio of the absorption peak area derived from the skin care agent to the absorption peak area derived from the surface sheet of the infrared absorption peak obtained from FT-IR, it is possible to determine whether the skin care agent is large or small. That is, when the ratio of the absorption peak area derived from the skin care agent to the absorption peak area derived from the topsheet is large, it can be determined that there are more skin care agents than when the ratio is small.
An ATR method can be used for infrared spectroscopy. And, among absorption peaks obtained by direct measurement (when a diamide derivative is applied to a PET / PE surface sheet, 1400-1500 cm −1 which is a CH absorption peak derived from the surface sheet) By comparing the ratio of the absorption peak of the amide group derived from the skin care agent to 1600-1670 cm −1 ), the presence or absence of the skin care agent can be determined.
Measuring device: Perkin Elmer Spectrum One
Wave number resolution: 4cm -1
Integration count: 16 times
〔実施例2及び参考例1〕
上述のようにして得られたスキンケア剤の塗布直後の表面シートについて、先に述べた方法で接触角を測定した。またステアリルアルコール/ジアミド誘導体の質量比が、8/2及び9/1のスキンケア剤を調製して、上述の方法と同様の方法で表面シートに塗布した(実施例2)。そして塗布後の表面シートについて、同様に接触角を測定した。更に、参考例1として、ステアリルアルコール/ワセリンの質量比が、5/5、8/2及び0/1のスキンケア剤を調製して、これを上述の方法と同様の方法で表面シート10に塗布した。そして塗布後の表面シートについて、同様に接触角を測定した。これらの結果を以下の表1に示す。
[Example 2 and Reference Example 1]
The contact angle of the surface sheet immediately after application of the skin care agent obtained as described above was measured by the method described above. Further, skin care agents having a stearyl alcohol / diamide derivative mass ratio of 8/2 and 9/1 were prepared and applied to the surface sheet in the same manner as described above (Example 2). And the contact angle was similarly measured about the surface sheet after application | coating. Further, as Reference Example 1, skin care agents having a mass ratio of stearyl alcohol / petroleum of 5/5, 8/2, and 0/1 were prepared and applied to the topsheet 10 in the same manner as described above. did. And the contact angle was similarly measured about the surface sheet after application | coating. These results are shown in Table 1 below.
表1に示す結果から明らかなとおり、実施例1及び2の表面シートは接触角が小さく親水性が高いことが判る。これに対して、参考例1の表面シートは、接触角が大きく、親水性が低いことが判る。 As is apparent from the results shown in Table 1, it can be seen that the top sheets of Examples 1 and 2 have a small contact angle and high hydrophilicity. On the other hand, it can be seen that the surface sheet of Reference Example 1 has a large contact angle and low hydrophilicity.
本発明の吸収性物品は、パンツ型の使い捨ておむつであっても良いし、使い捨ておむつ以外の吸収性物品、例えば、生理用ナプキン、パンティライナー(おりものシート)、失禁パッド、ハイジーンパッド、授乳パッド等であっても良い。 The absorbent article of the present invention may be a pants-type disposable diaper, or an absorbent article other than a disposable diaper, for example, a sanitary napkin, a panty liner (origami sheet), an incontinence pad, a hygiene pad, or a nursing pad Etc.
1 使い捨ておむつ(吸収性物品)
10 表面シート
10’ 不織布
11 突出部
12 頂部
3 側壁部
13 スキンケア剤
30 裏面シート
40 吸収体
50 ファスニングテープ
60 ランディングテープ
1 disposable diaper (absorbent article)
DESCRIPTION OF SYMBOLS 10 Top sheet 10 'Nonwoven fabric 11 Protrusion part 12 Top part 3 Side wall part 13 Skin care agent 30 Back surface sheet 40 Absorber 50 Fastening tape 60 Landing tape
Claims (5)
前記表面シートは、着用者の肌側に向かって突出する多数の突出部を有し、前記突出部は、前記吸収体側が開放された内部空間を有しており、
前記突出部は、頂部における肌対向面及び非肌対向面の両面にスキンケア剤が付着しており、該頂部における非肌対向面よりも肌対向面の方が、単位面積当たりのスキンケア剤量が多く、
前記突出部は、側壁部における肌対向面にもスキンケア剤が付着しており、前記頂部の肌対向面よりも該側壁部の肌対向面の方が、単位面積当たりのスキンケア剤量が少なく、且つ該側壁部の肌対向面における単位面積当たりのスキンケア剤の付着量は、該頂部の非肌対向面における単位面積当たりのスキンケア剤の付着量よりも多い、吸収性物品。 An absorbent article comprising a liquid-permeable top sheet composed of a nonwoven fabric, a liquid-impermeable or water-repellent back sheet, and an absorbent body disposed between the two sheets,
The topsheet has a number of protrusions protruding toward the skin side of the wearer, the protrusion has an internal space where the absorber side is open,
The protruding portion has a skin care agent attached to both the skin facing surface and the non-skin facing surface at the top, and the amount of skin care agent per unit area is greater on the skin facing surface than on the non-skin facing surface on the top. rather large,
The protruding portion has a skin care agent attached to the skin facing surface in the side wall portion, and the skin facing surface of the side wall portion has a smaller amount of skin care agent per unit area than the skin facing surface of the top portion, and the adhesion amount of skin care agent per unit area in the skin-facing surface of the side wall, have multi than the adhesion amount of skin care agent per unit area in the non-skin facing surface of said top absorbent article.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011268310A JP5909349B2 (en) | 2010-12-20 | 2011-12-07 | Absorbent articles |
PCT/JP2011/078849 WO2012086476A1 (en) | 2010-12-20 | 2011-12-14 | Absorptive article |
CN201180074613.4A CN104023684B (en) | 2010-12-20 | 2011-12-14 | Absorbent commodity |
RU2013139026/12A RU2573950C1 (en) | 2010-12-20 | 2011-12-14 | Absorbent product |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010283172 | 2010-12-20 | ||
JP2010283172 | 2010-12-20 | ||
JP2011268310A JP5909349B2 (en) | 2010-12-20 | 2011-12-07 | Absorbent articles |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012143543A JP2012143543A (en) | 2012-08-02 |
JP5909349B2 true JP5909349B2 (en) | 2016-04-26 |
Family
ID=46313752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011268310A Active JP5909349B2 (en) | 2010-12-20 | 2011-12-07 | Absorbent articles |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP5909349B2 (en) |
CN (1) | CN104023684B (en) |
RU (1) | RU2573950C1 (en) |
WO (1) | WO2012086476A1 (en) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011131044A (en) * | 2009-11-24 | 2011-07-07 | Kao Corp | Absorbent article |
JP6047428B2 (en) * | 2012-06-07 | 2016-12-21 | 花王株式会社 | Non-woven |
JP6104551B2 (en) * | 2012-09-28 | 2017-03-29 | ユニ・チャーム株式会社 | Absorbent articles |
JP6208937B2 (en) * | 2012-11-19 | 2017-10-04 | 花王株式会社 | Cool feeling sheet |
CN103422256B (en) | 2013-07-17 | 2016-08-24 | 厦门延江新材料股份有限公司 | A kind of hot-wind nonwoven cloth |
JP6289224B2 (en) * | 2014-04-04 | 2018-03-07 | ユニ・チャーム株式会社 | Non-woven |
JP5931131B2 (en) * | 2014-06-26 | 2016-06-08 | ユニ・チャーム株式会社 | Non-woven |
JP5677611B1 (en) | 2014-06-30 | 2015-02-25 | ユニ・チャーム株式会社 | Absorbent articles |
JP6418818B2 (en) | 2014-06-30 | 2018-11-07 | ユニ・チャーム株式会社 | Top sheet for absorbent articles |
US10105268B2 (en) * | 2014-09-12 | 2018-10-23 | The Procter & Gamble Company | Nonwoven material having discrete three-dimensional deformations with differential opacity regions |
JP6051290B2 (en) * | 2014-12-17 | 2016-12-27 | 花王株式会社 | Liquid film cleaving agent |
JP6475975B2 (en) * | 2014-12-25 | 2019-02-27 | ユニ・チャーム株式会社 | Absorbent article manufacturing method and absorbent article manufacturing apparatus |
JP5881915B1 (en) * | 2015-04-09 | 2016-03-09 | ユニ・チャーム株式会社 | Manufacturing method and manufacturing apparatus for absorbent article sheet |
JP6512987B2 (en) * | 2015-08-04 | 2019-05-15 | 花王株式会社 | Absorbent articles |
JP6192692B2 (en) * | 2015-08-04 | 2017-09-06 | 花王株式会社 | Absorbent articles |
JP6626747B2 (en) * | 2016-03-04 | 2019-12-25 | 花王株式会社 | Absorbent articles |
JP6665025B2 (en) * | 2016-05-13 | 2020-03-13 | 花王株式会社 | Absorbent articles |
JP7289193B2 (en) | 2018-10-01 | 2023-06-09 | 花王株式会社 | absorbent article |
JP7178951B2 (en) * | 2019-04-19 | 2022-11-28 | ユニ・チャーム株式会社 | absorbent article |
JP2020174996A (en) * | 2019-04-19 | 2020-10-29 | ユニ・チャーム株式会社 | Absorbent article |
WO2020213733A1 (en) * | 2019-04-19 | 2020-10-22 | ユニ・チャーム株式会社 | Absorbent article |
JP7286533B2 (en) * | 2019-12-27 | 2023-06-05 | ユニ・チャーム株式会社 | absorbent article |
JP7281399B2 (en) * | 2019-12-27 | 2023-05-25 | ユニ・チャーム株式会社 | absorbent article |
JP7281398B2 (en) * | 2019-12-27 | 2023-05-25 | ユニ・チャーム株式会社 | absorbent article |
WO2021132618A1 (en) * | 2019-12-27 | 2021-07-01 | ユニ・チャーム株式会社 | Absorbent article |
JP7438889B2 (en) * | 2020-08-18 | 2024-02-27 | 花王株式会社 | absorbent articles |
JP7516194B2 (en) | 2020-09-30 | 2024-07-16 | 花王株式会社 | Absorbent articles |
JP7240475B2 (en) * | 2020-12-17 | 2023-03-15 | 花王株式会社 | Package and its manufacturing method |
TWI810746B (en) * | 2020-12-17 | 2023-08-01 | 日商花王股份有限公司 | Package and manufacturing method thereof |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4208433B2 (en) * | 2000-05-12 | 2009-01-14 | 花王株式会社 | Absorbent articles |
DE60140838D1 (en) * | 2000-05-12 | 2010-02-04 | Kao Corp | Absorbent object |
ATE426417T1 (en) * | 2002-06-12 | 2009-04-15 | Sca Hygiene Prod Ab | ABSORBENT ARTICLE CONTAINING A SKINCARE COMPOSITION |
JP4090420B2 (en) * | 2002-11-13 | 2008-05-28 | 花王株式会社 | Top sheet for absorbent articles |
US7507459B2 (en) * | 2002-12-20 | 2009-03-24 | The Procter & Gamble Company | Compression resistant nonwovens |
JP4471624B2 (en) * | 2003-02-06 | 2010-06-02 | 花王株式会社 | Absorbent articles |
JP4949236B2 (en) * | 2004-06-21 | 2012-06-06 | ザ プロクター アンド ギャンブル カンパニー | Compression resistance nonwoven fabric |
EP1671609B2 (en) * | 2004-12-17 | 2014-07-09 | The Procter & Gamble Company | Discontinuous lotion application onto the topsheet of an absorbent article |
US8211078B2 (en) * | 2005-02-17 | 2012-07-03 | The Procter And Gamble Company | Sanitary napkins capable of taking complex three-dimensional shape in use |
US8778817B2 (en) * | 2006-10-30 | 2014-07-15 | Mcneil-Ppc, Inc. | Method of making a cover material including a skin care composition |
US20090030391A1 (en) * | 2007-07-25 | 2009-01-29 | John Lee Hammons | Absorbent article |
JP2011131044A (en) * | 2009-11-24 | 2011-07-07 | Kao Corp | Absorbent article |
-
2011
- 2011-12-07 JP JP2011268310A patent/JP5909349B2/en active Active
- 2011-12-14 CN CN201180074613.4A patent/CN104023684B/en active Active
- 2011-12-14 WO PCT/JP2011/078849 patent/WO2012086476A1/en active Application Filing
- 2011-12-14 RU RU2013139026/12A patent/RU2573950C1/en active
Also Published As
Publication number | Publication date |
---|---|
RU2573950C1 (en) | 2016-01-27 |
JP2012143543A (en) | 2012-08-02 |
CN104023684A (en) | 2014-09-03 |
CN104023684B (en) | 2016-01-20 |
WO2012086476A1 (en) | 2012-06-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5909349B2 (en) | Absorbent articles | |
TWI528953B (en) | Absorbent items | |
EP2211808B1 (en) | Shaped absorbent article | |
JP4279327B2 (en) | Absorbent products | |
US7597689B2 (en) | Disposable absorbent article with improved topsheet | |
JP6626747B2 (en) | Absorbent articles | |
US8277432B2 (en) | Shaped absorbent article with edge elastics | |
JP5933082B2 (en) | Absorbent articles | |
EP3509553B1 (en) | Three-dimensional apertured substrates | |
WO2016002105A1 (en) | Absorbent article and wearable article including absorbent article | |
JP2011110122A (en) | Absorbent article | |
JP3219622U (en) | Absorbent article and package of absorbent article | |
JP2018102836A (en) | Absorbent article | |
JP2019170534A (en) | Absorbent article, and manufacturing method of surface sheet for absorbent article | |
JP2022037490A (en) | Absorbent article | |
JP6749147B2 (en) | Absorbent article | |
WO2013084516A1 (en) | Disposable wearing article | |
JP4471624B2 (en) | Absorbent articles | |
JP6665025B2 (en) | Absorbent articles | |
JP6706940B2 (en) | Absorbent article | |
JP7487044B2 (en) | Absorbent articles | |
JP7438889B2 (en) | absorbent articles | |
JP6419454B2 (en) | Absorbent articles | |
JP2022056826A (en) | Absorbent article |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20140917 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20150716 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20150721 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20150908 |
|
RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20151225 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20160301 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20160328 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 5909349 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |