JP7382195B2 - Three-dimensional top sheet for absorbent articles and absorbent articles - Google Patents
Three-dimensional top sheet for absorbent articles and absorbent articles Download PDFInfo
- Publication number
- JP7382195B2 JP7382195B2 JP2019180864A JP2019180864A JP7382195B2 JP 7382195 B2 JP7382195 B2 JP 7382195B2 JP 2019180864 A JP2019180864 A JP 2019180864A JP 2019180864 A JP2019180864 A JP 2019180864A JP 7382195 B2 JP7382195 B2 JP 7382195B2
- Authority
- JP
- Japan
- Prior art keywords
- top sheet
- absorbent articles
- dimensional
- sheet
- absorbent
- 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
- 239000002250 absorbent Substances 0.000 title claims description 125
- 230000002745 absorbent Effects 0.000 title claims description 122
- 239000004745 nonwoven fabric Substances 0.000 claims description 65
- 239000002781 deodorant agent Substances 0.000 claims description 38
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 28
- 239000011787 zinc oxide Substances 0.000 claims description 14
- 150000002484 inorganic compounds Chemical class 0.000 claims description 7
- 229910010272 inorganic material Inorganic materials 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 description 22
- 230000001877 deodorizing effect Effects 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 21
- 210000001124 body fluid Anatomy 0.000 description 20
- 239000010839 body fluid Substances 0.000 description 19
- 235000019645 odor Nutrition 0.000 description 15
- 238000004049 embossing Methods 0.000 description 12
- 229920000247 superabsorbent polymer Polymers 0.000 description 11
- 210000002700 urine Anatomy 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- XYHKNCXZYYTLRG-UHFFFAOYSA-N 1h-imidazole-2-carbaldehyde Chemical compound O=CC1=NC=CN1 XYHKNCXZYYTLRG-UHFFFAOYSA-N 0.000 description 9
- GWYFCOCPABKNJV-UHFFFAOYSA-M 3-Methylbutanoic acid Natural products CC(C)CC([O-])=O GWYFCOCPABKNJV-UHFFFAOYSA-M 0.000 description 9
- GWYFCOCPABKNJV-UHFFFAOYSA-N beta-methyl-butyric acid Natural products CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 description 9
- 239000002131 composite material Substances 0.000 description 9
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 9
- 206010021639 Incontinence Diseases 0.000 description 7
- 239000000835 fiber Substances 0.000 description 7
- -1 pH adjusters Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 210000004243 sweat Anatomy 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 239000004750 melt-blown nonwoven Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000010954 inorganic particle Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000858 Cyclodextrin Polymers 0.000 description 1
- 206010012735 Diarrhoea Diseases 0.000 description 1
- 241000280258 Dyschoriste linearis Species 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 206010046543 Urinary incontinence Diseases 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000003906 humectant Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000027939 micturition Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 description 1
- 210000002374 sebum Anatomy 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
Description
本発明は、吸収性物品用立体トップシート及びそれを含む吸収性物品に関し、詳しくは消臭機能を持った吸収性物品用立体トップシート及びそれを含む吸収性物品に関する。 The present invention relates to a three-dimensional top sheet for absorbent articles and an absorbent article containing the same, and more particularly to a three-dimensional top sheet for absorbent articles having a deodorizing function and an absorbent article containing the same.
軽い尿失禁に悩む中高年者の増加と共に尿吸収パッドのような軽失禁製品の利用者が増えている。軽失禁製品に求められる品質として尿等の体液が漏れないことが一番ではあるが、臭いにより周りの人に軽失禁製品を使用していることが分からないようにすることも重要であり、そのため多くの消臭機能をもった製品が提案されている（特許文献１、２）。なお、従来から、軽失禁製品やそれ以外の紙おむつ製品等も含めて、吸収性物品と総称されている。 As the number of middle-aged and elderly people suffering from mild urinary incontinence increases, the number of users of light incontinence products such as urine absorbing pads is increasing. The most important quality required for light incontinence products is that they do not leak urine or other body fluids, but it is also important to ensure that people around you do not know that you are using a light incontinence product due to the odor. Therefore, many products with deodorizing functions have been proposed (Patent Documents 1 and 2). Note that, conventionally, light incontinence products and other disposable diaper products have been collectively referred to as absorbent articles.
吸収性物品への消臭機能の付与は、特許文献１、２に記載のように、体液を吸収及び保持する吸収体の内部に消臭材料を担持し、吸収された尿等の体液が存在する内部での臭気の発生を抑制、又は臭気の吸着、分解を考えたものが多い。 As described in Patent Documents 1 and 2, a deodorizing function is imparted to an absorbent article by carrying a deodorizing material inside an absorbent body that absorbs and retains body fluids, and absorbing body fluids such as urine. Many of them are designed to suppress the generation of odors inside the air, or to absorb and decompose odors.
一方で、内部で消臭しきれなかった臭気に対する消臭、又は***前に吸収性物品を着用することで蒸れて発生する汗臭に対する消臭を考えたとき、トップシートに消臭機能を付与することが望ましい。トップシートへの消臭機能の付与方法としては、特許文献３にあるように消臭剤としてのシクロデキストリンを２０℃で液体又は半固体の溶剤に溶かして塗布する方法がとられる。該溶剤は消臭剤を吸収性物品に固着させるバインダーとして機能する。そして、消臭剤は、体液と接触したときに体液中の水分により臭気成分を吸着する機能を発揮する。したがって、尿等の体液に対してはある程度の消臭効果があるが、汗臭等の微量な水分により発生する臭気に対しては消臭効果が得られにくい。 On the other hand, when thinking about deodorizing odors that could not be completely eliminated internally, or deodorizing sweat odors that are generated due to stuffiness caused by wearing absorbent articles before excretion, we added a deodorizing function to the top sheet. It is desirable to do so. As a method for imparting a deodorizing function to the top sheet, as described in Patent Document 3, a method is used in which cyclodextrin as a deodorant is dissolved in a liquid or semi-solid solvent at 20° C. and applied. The solvent functions as a binder that fixes the deodorant to the absorbent article. When the deodorant comes into contact with body fluids, the deodorant exhibits the function of adsorbing odor components using the moisture in the body fluids. Therefore, although it has a certain degree of deodorizing effect on body fluids such as urine, it is difficult to obtain a deodorizing effect on odors generated by minute amounts of water such as sweat odor.
トップシートへの消臭機能の付与はこれまでもいろいろと提案されてはいるが、いずれも消臭剤を含む溶液の塗工であり、酸化亜鉛など無機粒子をトップシートに担持する方法はとられていない。理由としては、無機粒子を担持するためにはバインダーが必要であり、バインダーは吸収性物品の吸収性能に影響を及ぼすためである。したがって、吸収性能に影響しない量のバインダーでは十分な消臭機能を発揮する量の無機粒子を吸収性物品に担持することはできない。 Various proposals have been made to impart a deodorizing function to the top sheet, but all of them involve coating a solution containing a deodorizing agent, and there are no methods for supporting inorganic particles such as zinc oxide on the top sheet. It has not been done. This is because a binder is required to support the inorganic particles, and the binder affects the absorption performance of the absorbent article. Therefore, an amount of binder that does not affect absorption performance cannot support an amount of inorganic particles that exhibits a sufficient deodorizing function in an absorbent article.
本発明の目的は、優れた消臭機能を有する吸収性物品用立体トップシート及び吸収性物品を提供することである。 An object of the present invention is to provide a three-dimensional top sheet for absorbent articles and an absorbent article having excellent deodorizing function.
本発明は、好ましい実施形態として、下記（１）～（７）の吸収性物品用立体トップシート、及び下記（８）の吸収性物品を提供する。
（１）吸収性物品のトップシートとして使用される吸収性物品用立体トップシートであって、その内部が中空である、互いに離隔した複数の第一の凸部を有する液透過性の不織布と、前記不織布と重ね合わせたときに前記第一の凸部と対応する位置にあり、その内部が中空である複数の第二の凸部、及び、開孔径がミクロン単位である複数の開孔を有し、前記不織布が上側になるように重ねられる前記開孔フィルムと、前記開孔フィルムの下に貼合わされる液透過性のシートと、前記第二の凸部と前記液透過性のシートとで囲まれた、前記第二の凸部の内部空間に収納された消臭剤と、を備えることを特徴とする、吸収性物品用立体トップシート。
（２）前記第一及び第二の凸部の立体形状が、略半球状、略ドーム状、略円柱状、略角柱状、及び略四角錐台状よりなる群から選ばれた立体形状である、上記（１）の吸収性物品用立体トップシート。
（３）前記第一の凸部の中空である内部空間が、前記第二の凸部を収納可能な寸法である、上記（１）又は（２）の吸収性物品用立体トップシート。
（４）前記開孔フィルムの開孔径が５００μｍ以上９００μｍ以下の範囲にある、上記（１）～（３）のいずれかの吸収性物品用立体トップシート。
（５）前記消臭剤が水不溶性である、上記（１）～（４）のいずれかの吸収性物品用立体トップシート。
（６）前記消臭剤が、水不溶性無機化合物の粉末である、上記（１）～（５）のいずれかの吸収性物品用立体トップシート。
（７）前記水不溶性無機化合物が酸化亜鉛である、上記（６）の吸収性物品用立体トップシート。
（８）液透過性のトップシートと、液不透過性のバックシートと、前記トップシートと前記バックシートとの間に介在する吸収体と、を備える吸収性物品であって、前記トップシートが、上記（１）～（７）のいずれかの吸収性物品用立体トップシートであることを特徴とする、吸収性物品。
The present invention provides, as preferred embodiments, three-dimensional top sheets for absorbent articles as described in (1) to (7) below, and absorbent articles as described in (8) below.
(1) A three-dimensional top sheet for absorbent articles that is used as a top sheet for absorbent articles, the interior of which is hollow, and a liquid-permeable nonwoven fabric having a plurality of first convex portions spaced apart from each other; A plurality of second protrusions are located at positions corresponding to the first protrusions when overlapped with the nonwoven fabric, and the interior of the second protrusions is hollow, and a plurality of apertures having an aperture diameter in the micron unit are provided. and the perforated film stacked so that the nonwoven fabric is on the upper side, a liquid permeable sheet laminated under the perforated film, and the second convex portion and the liquid permeable sheet. A three-dimensional top sheet for an absorbent article, comprising: a deodorizer stored in the inner space of the second surrounded convex portion.
(2) The three-dimensional shape of the first and second convex portions is a three-dimensional shape selected from the group consisting of a substantially hemispherical shape, a substantially dome shape, a substantially cylindrical shape, a substantially prismatic shape, and a substantially quadrangular truncated pyramid shape. , the three-dimensional top sheet for absorbent articles according to (1) above.
(3) The three-dimensional top sheet for an absorbent article according to (1) or (2) above, wherein the hollow internal space of the first convex portion has a size that can accommodate the second convex portion.
(4) The three-dimensional top sheet for an absorbent article according to any one of (1) to (3) above, wherein the aperture diameter of the apertured film is in the range of 500 μm or more and 900 μm or less.
(5) The three-dimensional top sheet for absorbent articles according to any one of (1) to (4) above, wherein the deodorant is water-insoluble.
(6) The three-dimensional top sheet for an absorbent article according to any one of (1) to (5) above, wherein the deodorant is a powder of a water-insoluble inorganic compound.
(7) The three-dimensional top sheet for absorbent articles according to (6) above, wherein the water-insoluble inorganic compound is zinc oxide.
(8) An absorbent article comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, and an absorbent body interposed between the topsheet and the backsheet, wherein the topsheet is , an absorbent article characterized by being the three-dimensional top sheet for an absorbent article according to any one of (1) to (7) above.
本発明によれば、優れた消臭機能を有する吸収性物品用立体トップシート、及びそれを含む吸収性物品を提供することができる。 According to the present invention, it is possible to provide a three-dimensional top sheet for an absorbent article having an excellent deodorizing function and an absorbent article containing the same.
以下、図面を参照しつつ本実施形態の吸収性物品１について詳細に説明する。図１は、第１実施形態である吸収性物品１の構成を模式的に示す平面図である。図１は、吸収性物品１を吸収性物品用立体トップシート２側から見た平面図である。図２は、図１に示すＸ１－Ｘ１切断線における吸収性物品１の模式断面図である。図３は、本発明の第二実施形態である吸収性物品用立体トップシート２の製造装置を模式的に示す側面図である。図４～図７は、それぞれ、吸収性物品用立体トップシート２の製造方法における第一工程～第四工程を模式的に示す断面図である。図８は、開孔フィルム１１の構成を模式的に示す拡大断面図である。 Hereinafter, the absorbent article 1 of this embodiment will be described in detail with reference to the drawings. FIG. 1 is a plan view schematically showing the configuration of an absorbent article 1 according to the first embodiment. FIG. 1 is a plan view of the absorbent article 1 viewed from the side of the three-dimensional top sheet 2 for absorbent articles. FIG. 2 is a schematic cross-sectional view of the absorbent article 1 taken along the line X 1 -X 1 shown in FIG. FIG. 3 is a side view schematically showing a manufacturing apparatus for a three-dimensional top sheet 2 for absorbent articles, which is a second embodiment of the present invention. 4 to 7 are cross-sectional views schematically showing the first to fourth steps in the method for manufacturing the three-dimensional top sheet 2 for absorbent articles, respectively. FIG. 8 is an enlarged cross-sectional view schematically showing the structure of the apertured film 11. As shown in FIG.
本明細書において、吸収性物品１の着用時とは、吸収性物品１の着用時及び着用後の少なくとも一方をいう。着用とは、吸収性物品１を身体に装着した状態をいう。なお、吸収性物品１は、通常衣類の内部において身体に装着されるものであるが、吸収性物品１の少なくとも一部が外部に露出するように身体に装着してもよい。吸収性物品１の長手方向とは、吸収性物品１を着用したときに着用者の股間部を介して身体の前後にわたる方向である。吸収性物品１の幅方向とは、長手方向に対して直交する方向である。吸収性物品１の厚み方向とは、積層体としての吸収性物品１の各部材の積層方向である。肌側面とは、吸収性物品１の各部材の表裏両面のうち、着用時に着用者の肌側を臨む面であり、非肌側面とは、吸収性物品１の各部材の表裏両面のうち、着用時に着用者の衣服を臨む面である。体液とは、尿や血液、軟便中の水分等の体内から体外に排出された液体をいう。 In this specification, the term "when the absorbent article 1 is worn" refers to at least one of when the absorbent article 1 is worn and after the absorbent article 1 is worn. Wearing refers to a state in which the absorbent article 1 is worn on the body. Although the absorbent article 1 is usually worn on the body inside clothing, it may be worn on the body so that at least a portion of the absorbent article 1 is exposed to the outside. The longitudinal direction of the absorbent article 1 is a direction extending from the front and back of the wearer's body through the crotch region when the absorbent article 1 is worn. The width direction of the absorbent article 1 is a direction perpendicular to the longitudinal direction. The thickness direction of the absorbent article 1 is the lamination direction of each member of the absorbent article 1 as a laminate. The skin side is the surface that faces the wearer's skin when worn, out of both the front and back surfaces of each member of the absorbent article 1, and the non-skin side is the surface that faces the wearer's skin side when worn. This is the surface that faces the wearer's clothes when worn. Body fluids refer to fluids discharged from the body, such as urine, blood, and water in loose stools.
［吸収性物品］
図１及び図２に示すように、本実施形態の吸収性物品１は、着用時に肌側に位置する液透過性の吸収性物品用立体トップシート２（以下単に「トップシート２」ともいう）と、着用時に非肌側に位置する液不透過性のバックシート４と、トップシート２とバックシート４との間に介在するように設けられる収体３と、吸収性物品１の長手方向に延びるように設けられかつバックシート４の肌側表面の幅方向両端近傍に固定された一対の立体ギャザー５と、を備えている。
[Absorbent article]
As shown in FIGS. 1 and 2, the absorbent article 1 of the present embodiment includes a liquid-permeable three-dimensional top sheet 2 for absorbent articles (hereinafter also simply referred to as "top sheet 2") that is located on the skin side when worn. , a liquid-impermeable backsheet 4 located on the non-skin side when worn, a storage body 3 interposed between the topsheet 2 and the backsheet 4, and an absorbent article 1 extending in the longitudinal direction. A pair of three-dimensional gathers 5 are provided to extend and are fixed near both widthwise ends of the skin side surface of the backsheet 4.
本実施形態によれば、尿等の体液の吸収の前後を問わず優れた消臭機能を発揮し、特に、体液に起因する臭いだけでなく、吸収性物品１の着用による蒸れ等に基づく汗等に起因する臭いをも十分に消臭できることから、各種臭いから吸収性物品１の着用を周囲に覚られることなく、周囲を気にすることなく着用できる、吸収性物品１が提供される。 According to the present embodiment, an excellent deodorizing function is exhibited regardless of whether or not body fluids such as urine are absorbed, and in particular, it is effective against not only odors caused by body fluids but also sweat caused by stuffiness caused by wearing the absorbent article 1. Since it is possible to sufficiently deodorize the odors caused by various odors, an absorbent article 1 that can be worn without worrying about the surroundings without being noticed by the people around you that you are wearing the absorbent article 1 from various odors is provided.
吸収性物品１としては、ベビー用又は成人用を問わず、軽失禁パッド、尿吸収パッド、パンツ型紙おむつ、テープ止め紙おむつ等が例示されるが、これらに限定されるものではなく、その他の吸収性物品であってもよい。また、アウターとしての各種紙おむつと、インナーとしての吸収性物品１とを組み合わせて用いることもできる。吸収性物品１の、長手方向及び幅方向の寸法は特に限定されないが、それぞれ例えば１００ｍｍ以上８００ｍｍ以下の範囲、及び５０ｍｍ以上５００ｍｍ以下の範囲である。吸収性物品１の寸法を前記の範囲に調整することにより、軽失禁パッド、尿吸収パッド、パンツ型紙おむつ、テープ止め紙おむつ等に適した吸収性物品１を得ることができる。
以下、吸収性物品１の各構成部材について、さらに詳しく説明する。
Examples of the absorbent article 1 include, but are not limited to, light incontinence pads, urine absorbing pads, pants-type disposable diapers, tape-fastened disposable diapers, etc., regardless of whether they are for babies or adults. It may also be a sexual article. Moreover, various paper diapers as an outer and the absorbent article 1 as an inner can be used in combination. The longitudinal and widthwise dimensions of the absorbent article 1 are not particularly limited, but are, for example, in the range of 100 mm or more and 800 mm or less, and in the range of 50 mm or more and 500 mm or less, respectively. By adjusting the dimensions of the absorbent article 1 within the above range, it is possible to obtain an absorbent article 1 suitable for light incontinence pads, urine absorbing pads, pants-type paper diapers, tape-fastened paper diapers, and the like.
Each component of the absorbent article 1 will be described in more detail below.
（トップシート）
トップシート２は、本実施形態では吸収体３の肌側表面の全面を覆うように設けられているが、これに限定されず、例えば、吸収体３の全体が液透過性シートや親水性シート等で覆われている場合は、該液透過性シートや親水性シートの肌側表面の一部が露出するように設けてもよい。
(Top sheet)
Although the top sheet 2 is provided to cover the entire skin-side surface of the absorbent body 3 in this embodiment, the top sheet 2 is not limited to this, and for example, the entire absorbent body 3 is formed of a liquid-permeable sheet or a hydrophilic sheet. etc., the skin-side surface of the liquid-permeable sheet or hydrophilic sheet may be partially exposed.
トップシート２は、図２に示すように、いわば立体トップシートとも言うべき部材であり、その内部が中空である、互いに離隔した複数の第一の凸部１３を有する液透過性の不織布１０と、不織布１０と重ね合わせたときに第一の凸部１３と対応する位置にあり、その内部が中空である複数の第二の凸部１４、及び、開孔径がミクロン単位である複数の開孔２６を有し（図８）、不織布１０が上側になるように重ねられる開孔フィルム１１と、開孔フィルム１１の下に貼合わされる液透過性のシート１２と、第二の凸部１４と液透過性のシート１２とで囲まれた、第二の凸部１４の内部空間１５に収納又は封入された消臭剤１６と、を備えている。 As shown in FIG. 2, the top sheet 2 is a member that can be called a three-dimensional top sheet, and includes a liquid-permeable nonwoven fabric 10 that is hollow inside and has a plurality of first protrusions 13 spaced apart from each other. , a plurality of second protrusions 14 located at positions corresponding to the first protrusions 13 when superimposed on the nonwoven fabric 10 and having hollow interiors, and a plurality of apertures having an aperture diameter in the micron unit. 26 (FIG. 8), a perforated film 11 stacked with the nonwoven fabric 10 on top, a liquid-permeable sheet 12 pasted under the perforated film 11, and a second convex portion 14. The deodorant 16 is housed or enclosed in an internal space 15 of the second convex portion 14 surrounded by a liquid-permeable sheet 12.
液透過性の不織布１０としては、体液が吸収体３へと移動するような液透過性を備えた不織布を特に限定なく使用でき、例えば、エアスルー不織布、サーマルボンド不織布、スパンボンド不織布等の不織布、サーマルボンド不織布／スパンボンド不織布積層体等の同種又は異種の不織布を積層した複合不織布等が挙げられる。肌への刺激を低減させるため、トップシート２には、ローション、酸化防止剤、抗炎症成分、ｐＨ調整剤、抗菌剤、保湿剤等を含有させてもよい。 As the liquid-permeable nonwoven fabric 10, any nonwoven fabric with liquid permeability that allows body fluids to move to the absorbent body 3 can be used without particular limitation.For example, nonwoven fabrics such as air-through nonwoven fabric, thermal bond nonwoven fabric, spunbond nonwoven fabric, etc. Examples include composite nonwoven fabrics in which the same or different types of nonwoven fabrics are laminated, such as a thermal bond nonwoven fabric/spunbond nonwoven fabric laminate. In order to reduce irritation to the skin, the top sheet 2 may contain lotions, antioxidants, anti-inflammatory ingredients, pH adjusters, antibacterial agents, humectants, and the like.
不織布１０は、吸収性物品１を着用した場合に、肌側に向けて突出する複数の第一の凸部１３を有する。複数の第一の凸部１３は、互いに離隔するように設けられ、その内部は中空である。第一の凸部１３の中空である内部空間は、第二の凸部１４を収納可能な寸法であることが好ましい。これにより、トップシート２が不必要に嵩張らないことから、吸収性物品１の着用感やフィット感 が向上し、さらに吸収性物品１の着用を周囲に覚られない秘匿性も保たれる。 The nonwoven fabric 10 has a plurality of first protrusions 13 that protrude toward the skin side when the absorbent article 1 is worn. The plurality of first protrusions 13 are provided so as to be spaced apart from each other, and are hollow inside. It is preferable that the hollow internal space of the first convex portion 13 has a size that allows the second convex portion 14 to be accommodated therein. As a result, the top sheet 2 does not become unnecessarily bulky, which improves the feel and fit of the absorbent article 1, and also maintains the confidentiality of the absorbent article 1 so that others do not notice that it is being worn.
不織布１０の肌側表面における第一の凸部１３の配列は、本実施形態では水玉模様（ポルカドット）状であるが、これに限定されず、例えば、格子状、直線状（１本又は複数の直線）、斜線状（１本又は複数の斜線、トップシート２の長手方向に対して角度を有して延びる直線）、同心円状、同心矩形状、不規則配列等が挙げられる。また、第一の凸部１３の形状は、本実施形態では略半球状であるが、第二の凸部１４をその中空の内部空間に収納可能な形状であれば特に限定されず、例えば、略ドーム状、略円柱状、略円錐台状、略角柱状、略多角錐台状等が挙げられる。なお、不織布１０が可撓性を有することから、第一の凸部１３の立体形状が吸収性物品１の着用時に変形することがあり、また、第一の凸部１３は吸収性物品１の肌触りを損なうものではない。 The arrangement of the first protrusions 13 on the skin-side surface of the nonwoven fabric 10 is in the form of polka dots in this embodiment, but is not limited to this, and may be, for example, in the form of a lattice, in a linear form (one or more Examples include a straight line), a diagonal line (one or more diagonal lines, a straight line extending at an angle to the longitudinal direction of the top sheet 2), a concentric circle, a concentric rectangle, an irregular arrangement, and the like. Further, the shape of the first convex portion 13 is approximately hemispherical in this embodiment, but is not particularly limited as long as the second convex portion 14 can be accommodated in the hollow internal space, for example, Examples include a substantially dome shape, a substantially cylindrical shape, a substantially truncated cone shape, a substantially prismatic shape, a substantially polygonal truncated pyramid shape, and the like. In addition, since the nonwoven fabric 10 has flexibility, the three-dimensional shape of the first convex portion 13 may be deformed when the absorbent article 1 is worn, and the first convex portion 13 may deform when the absorbent article 1 is worn. It does not affect the feel of the skin.
第一の凸部１３の寸法は特に限定されないが、トップシート２ひいては吸収性物品１の強度、吸収性物品１の肌触り等の観点から、径寸法が３ｍｍ以上１０ｍｍ以下であることが好ましく、高さ寸法が２ｍｍ以上５ｍｍ以下であることが好ましい。また、第一の凸部１３のピッチ（ここでは一の第一の凸部１３とそれに最も近い位置で隣り合う他の第一の凸部１３との最短距離）も特に限定されないが、３ｍｍ以上１０ｍｍ以下であることが好ましい。 The dimensions of the first convex portion 13 are not particularly limited, but from the viewpoint of the strength of the top sheet 2 and the absorbent article 1, the feel of the absorbent article 1, etc., the diameter is preferably 3 mm or more and 10 mm or less, and It is preferable that the length is 2 mm or more and 5 mm or less. Further, the pitch of the first convex portions 13 (here, the shortest distance between one first convex portion 13 and the other first convex portion 13 adjacent to it at the closest position) is not particularly limited, but is 3 mm or more. It is preferably 10 mm or less.
開孔フィルム１１は、第二の凸部１４を形成する前の拡大断面図である図８に示すように、複数のリブ２５（リブ２５は第二の凸部１４ではない）と、複数の開孔２６とを有している。すなわち、リブ２５、及び開孔２６は、開孔フィルム１１が本来有するものであり、開孔フィルム１１を製造する工程で、フィルムを開孔するため、多孔板上でフィルムに高温の空気をふきつけた際に、被処理面の逆面にフィルムが伸びることでリブ２５が生じる。リブ２５は第二の凸部１４に比べて非常に微小なサイズのものである。本発明において開孔径とはリブの根本の部分の径ｄの部分であり、ｄはミクロン単位の開孔径を有し、通液性と消臭剤１６がトップシート表面への移行する量のバランスの観点から好ましくは５００μｍ以上９００μｍ以下の範囲にある。 As shown in FIG. 8, which is an enlarged cross-sectional view before forming the second convex portion 14, the perforated film 11 has a plurality of ribs 25 (the ribs 25 are not the second convex portion 14) and a plurality of ribs 25 (the ribs 25 are not the second convex portion 14). It has an opening 26. That is, the ribs 25 and the openings 26 are originally included in the perforated film 11, and in the process of manufacturing the perforated film 11, in order to open the film, high temperature air is blown onto the film on a perforated plate. At this time, ribs 25 are formed by stretching the film on the opposite side of the surface to be treated. The rib 25 has a much smaller size than the second convex portion 14. In the present invention, the aperture diameter is the diameter d at the base of the rib, where d is the aperture diameter in microns, which is a balance between liquid permeability and the amount of deodorant 16 transferred to the top sheet surface. From this viewpoint, it is preferably in the range of 500 μm or more and 900 μm or less.
開孔フィルム１１には、その内部が中空である複数の第二の凸部１４が形成される。複数の第二の凸部１４の形状、寸法、及び配列方法は、特に限定されないが、第一の凸部１３と同様の形状、寸法、及び配列方法を採用することができ、特に第一の凸部１３の内部空間内に第二の凸部１４が入り込むような形状、寸法、及び配列方法を適宜選択することが好ましい。そのためには、配列方法は第一、第二の凸部１３、１４共に同じにする必要がある。これにより、例えば、厚みを最小限に留め、ごわごわ感のない着用し易い吸収性物品１となる。複数の第二の凸部１４が形成された開孔フィルム１１を備えるトップシート２は強度ひいては消臭剤１６の保持性も高まる。複数の第二の凸部１４を有する開孔フィルム１１は、不織布１０が上側になるように重ねられる。複数の第二の凸部１４を形成する前の開孔フィルム１１は種々のものが市販されており、その中から、開孔２６の開孔径がミクロン単位である開孔フィルム１１を適宜選択して使用すればよい。 A plurality of second convex portions 14 having hollow interiors are formed in the perforated film 11 . The shape, dimensions, and arrangement method of the plurality of second protrusions 14 are not particularly limited, but the same shape, dimensions, and arrangement method as the first protrusions 13 can be adopted, and in particular, the first It is preferable to appropriately select the shape, dimensions, and arrangement method so that the second protrusion 14 fits into the internal space of the protrusion 13 . For this purpose, it is necessary to arrange the first and second convex portions 13 and 14 in the same manner. As a result, for example, the absorbent article 1 can be kept to a minimum thickness and is easy to wear without feeling stiff. The top sheet 2 provided with the apertured film 11 in which the plurality of second convex portions 14 are formed has increased strength and, as a result, retention of the deodorant 16. The perforated film 11 having the plurality of second convex portions 14 is stacked so that the nonwoven fabric 10 is on the upper side. Various types of apertured film 11 are commercially available before forming the plurality of second convex portions 14, and from among these, an apertured film 11 in which the aperture diameter of the apertures 26 is in the micron unit is selected as appropriate. Just use it.
トップシート２を液透過性の不織布１０のみで構成する場合、不織布１０がポーラスなため、供給された消臭剤１６が不織布１０の隙間からこぼれ落ちてしまう。開孔フィルム１１は一般的にその製造時に開孔した影響で片面にテーパー状のリブ２５が形成されている。本実施形態のトップシート２では、このリブ２５が吸収体３側に向くように配置する。その結果、開孔フィルム１１に形成された第二の凸部１４の内側にこのリブ２５が向くことになる。さらに第二の凸部１４を成形することにより、リブ２５が面方向に広げられるにつれ、リブ２５が内側に倒れこみリブ２５側の開孔２６は狭くなる。そのため第二の凸部１４内側からは粉末の消臭剤１６は通過し（漏れ）にくくなる。 When the top sheet 2 is composed only of the liquid-permeable nonwoven fabric 10, the supplied deodorant 16 spills through the gaps between the nonwoven fabrics 10 because the nonwoven fabric 10 is porous. The perforated film 11 generally has a tapered rib 25 formed on one side due to the perforations formed during its manufacture. In the top sheet 2 of this embodiment, the ribs 25 are arranged so as to face the absorbent core 3 side. As a result, this rib 25 faces inside the second convex portion 14 formed on the apertured film 11. Further, by forming the second convex portion 14, as the rib 25 is expanded in the surface direction, the rib 25 collapses inward, and the opening 26 on the rib 25 side becomes narrower. Therefore, the powder deodorant 16 is difficult to pass (leak) from the inside of the second convex portion 14.
また、開孔フィルム１１と液透過性不織布１０により２重になっているため、消臭剤１６はよりこぼれにくくなっている。消臭剤１６は、わずかな量が、トップシート２の内部から開孔フィルム１１の開孔２６を通じて漏出することもあるが、多くが開孔フィルム１１の開孔２６、リブ２５の中空内部や液透過性不織布１０の繊維間に留まる。そのため粉末がこぼれたような状態と感じず、とくに酸化亜鉛を消臭剤１６として使用した場合、排尿前のドライな環境であれば、パウダーがうすくのったような、サラッとした肌触りに感じる。 Moreover, since it is double layered by the perforated film 11 and the liquid-permeable nonwoven fabric 10, the deodorant 16 is more difficult to spill. Although a small amount of the deodorant 16 may leak from inside the top sheet 2 through the holes 26 of the perforated film 11, most of the deodorant 16 leaks from inside the holes 26 of the perforated film 11, the hollow inside of the ribs 25, etc. It remains between the fibers of the liquid-permeable nonwoven fabric 10. Therefore, it does not feel like the powder has been spilled, and especially when zinc oxide is used as a deodorant 16, in a dry environment before urinating, it feels smooth to the touch, as if a thin layer of powder has been applied. .
液透過性のシート１２は、開孔フィルム１１を介して、不織布１０に対向するように設けられ、開孔フィルム１１に貼り付けられる。なお、液透過性のシート１２を開孔フィルム１１に貼り付ける前に、第二の凸部１４の内部空間に消臭剤１６が充填され、貼り付けを実施することにより、消臭剤１６が第二の凸部１４の内部空間中に封入され、トップシート２が得られる。 A liquid-permeable sheet 12 is provided so as to face the nonwoven fabric 10 with the perforated film 11 in between, and is attached to the perforated film 11 . Note that before pasting the liquid-permeable sheet 12 onto the perforated film 11, the internal space of the second convex portion 14 is filled with the deodorant 16, and by pasting, the deodorant 16 is It is enclosed in the internal space of the second convex portion 14, and the top sheet 2 is obtained.
液透過性のシート１２に用いられる液透過性基材としては、液透過性であれば特に限定されないが、消臭剤１６を吸収体３側に通過させにくいものが好ましい。このような液透過性基材としては、例えば、ティシュー等が挙げられる。また、消臭剤１６を通さず尿等の体液をとおすことができるのであれば、不織布など他のシートでもよく、例えば、エアスルー不織布、サーマルボンド不織布、スパンボンド不織布等の不織布、サーマルボンド／スパンボンド等の同種又は異種の不織布を積層した複合不織布、ウレタンフォーム、ポリエチレンフォーム等からなる発泡フィルム、これらの２種以上の積層体である複合シート等の中から適宜選択して使用できる。液透過性のシート１２の坪量は特に限定されないが、強度、加工性及び液戻り量の観点から、１６ｇ／ｍ２以上４０ｇ／ｍ２以下であることが好ましい。 The liquid-permeable base material used for the liquid-permeable sheet 12 is not particularly limited as long as it is liquid-permeable, but it is preferably one that does not easily allow the deodorant 16 to pass through to the absorber 3 side. Examples of such liquid-permeable substrates include tissue and the like. Alternatively, other sheets such as nonwoven fabrics may be used as long as they can pass body fluids such as urine without passing through the deodorant 16. For example, nonwoven fabrics such as air-through nonwoven fabrics, thermal bond nonwoven fabrics, spunbond nonwoven fabrics, thermal bond/spun It can be appropriately selected and used from among composite nonwoven fabrics made by laminating the same or different types of nonwoven fabrics such as bond, foamed films made of urethane foam, polyethylene foam, etc., and composite sheets made of laminates of two or more of these. Although the basis weight of the liquid-permeable sheet 12 is not particularly limited, it is preferably 16 g/m 2 or more and 40 g/m 2 or less from the viewpoints of strength, workability, and liquid return amount.
（吸収体）
吸収体３は、例えば、吸収性物品１を身体に装着したときに、体液を吸収及び保持する機能を有する。吸収体３としては、この分野で常用されるものを特に限定なく使用できる。たとえば基材としての吸収性繊維と、高吸収性ポリマー（ＳＡＰ）と、を含有することが好ましい。
(Absorber)
The absorbent body 3 has a function of absorbing and retaining body fluids, for example, when the absorbent article 1 is worn on the body. As the absorber 3, those commonly used in this field can be used without particular limitation. For example, it is preferable to contain absorbent fibers as a base material and super absorbent polymer (SAP).
吸収性繊維は、一般に生理用ナプキンや紙おむつ、尿取りパッド等の吸収性物品に使用されるものであれば特に制限はなく、例えば、フラッフパルプ、コットン、レーヨン、アセテート、ティシュー、吸収紙、親水性不織布等を挙げることができる。これらの中でも、吸収性の観点から、フラッフパルプを使用することが好ましい。斯かるフラッフパルプとしては、木材パルプ、合成繊維、ポリマー繊維、非木材パルプ等を綿状に解繊したものを挙げることができる。 Absorbent fibers are not particularly limited as long as they are generally used in absorbent articles such as sanitary napkins, disposable diapers, and incontinence pads, such as fluff pulp, cotton, rayon, acetate, tissue, absorbent paper, and hydrophilic fibers. For example, nonwoven fabrics and the like can be mentioned. Among these, it is preferable to use fluff pulp from the viewpoint of absorbency. Examples of such fluff pulp include those obtained by defibrating wood pulp, synthetic fibers, polymer fibers, non-wood pulp, etc. into fluff.
ＳＡＰとしては、体液を吸収し、かつ、体液の逆流を防止できるものであれば特に限定されるものではなく、例えば、ポリアクリル酸塩、ポリアスパラギン酸塩、（デンプン－アクリル酸）グラフト共重合体、（アクリル酸－ビニルアルコール）共重合体、（イソブチレン・無水マレイン酸）共重合体及びそのケン化物等の、カルボキシル基含有モノマーを含む重合体が挙げられる。ＳＡＰは１種を単独で又は２種以上を組み合わせて使用できる。これらＳＡＰの中でも、重量当たりの体液吸収量の観点から、ポリアクリル酸塩が好ましく、ポリアクリル酸ナトリウムがより好ましい。 SAP is not particularly limited as long as it can absorb body fluids and prevent backflow of body fluids, such as polyacrylates, polyaspartates, (starch-acrylic acid) graft copolymers, etc. Examples include polymers containing carboxyl group-containing monomers, such as polymers, (acrylic acid-vinyl alcohol) copolymers, (isobutylene/maleic anhydride) copolymers, and saponified products thereof. One type of SAP can be used alone or two or more types can be used in combination. Among these SAPs, from the viewpoint of body fluid absorption per weight, polyacrylates are preferred, and sodium polyacrylate is more preferred.
ＳＡＰを含有する液吸収性シートとしては、特に限定されないが、液吸収性シート中にＳＡＰ粒子を混合したもの、液吸収性シート間にＳＡＰ粒子を固着したＳＡＰシート等が好ましい。それ以外にも、ＳＡＰを繊維の形態で含有する液吸収性シート等もある。 The liquid-absorbent sheet containing SAP is not particularly limited, but preferable examples include a liquid-absorbent sheet in which SAP particles are mixed, a SAP sheet in which SAP particles are fixed between liquid-absorbent sheets, and the like. In addition to these, there are also liquid absorbent sheets containing SAP in the form of fibers.
吸収体３の平面形状は本実施形態では砂時計状であるが、これに限定されず、例えば、略長方形（矩形状）、Ｉ字状、長円形状、楕円形状、長方形の４角が丸まった角丸四角形等の形状とすることができる。吸収体３は、２層以上を重ねて用いてもよい。また、吸収体３の厚みは、吸収しようとする体液の種類や、吸収体３の形態や材質等に応じて適宜選択されるが、体液の吸収性、保持性や、また、吸収体３は、その形状保持性を向上させ、ＳＡＰの脱落を防止する観点などから、必要に応じて吸収体３全体を親水性フィルムで被覆してもよい。 The planar shape of the absorbent body 3 is an hourglass shape in this embodiment, but is not limited to this, for example, a substantially rectangular (rectangular shape), an I-shape, an elliptical shape, an elliptical shape, or a rectangular shape with rounded four corners. It can have a shape such as a rounded rectangle. The absorbent body 3 may be used by stacking two or more layers. The thickness of the absorbent body 3 is appropriately selected depending on the type of body fluid to be absorbed, the form and material of the absorbent body 3, etc.; From the viewpoint of improving its shape retention and preventing SAP from falling off, the entire absorbent body 3 may be coated with a hydrophilic film as necessary.
（バックシート）
バックシート４は、吸収体３が保持している体液が衣類を濡らしたり、皮膚表面に付着したりしないような液不透過性基材からなる。バックシート用基材としては、例えば、樹脂フィルム、樹脂フィルムと不織布との積層体である複合シート等が挙げられる。樹脂フィルムとしては、例えば、ポリエステル、ポリビニルアルコール、ポリエチレン、ポリプロピレン等の合成樹脂からなるフィルム、ポリエチレンとポリプロピレンとの複合フィルム等が挙げられる。複合シートに用いられる不織布としては、製法を特に限定せず、例えば、スパンボンド不織布、メルトブロー不織布、スパンボンド不織布とメルトブロー不織布との積層体である複合不織布、スパンボンド不織布とメルトブロー不織布とスパンボンド不織布との積層体である複合不織布などが挙げられる。
(back seat)
The backsheet 4 is made of a liquid-impermeable base material that prevents body fluids held by the absorbent core 3 from wetting clothing or adhering to the skin surface. Examples of the backsheet base material include a resin film, a composite sheet that is a laminate of a resin film and a nonwoven fabric, and the like. Examples of the resin film include films made of synthetic resins such as polyester, polyvinyl alcohol, polyethylene, and polypropylene, and composite films of polyethylene and polypropylene. The manufacturing method of the nonwoven fabric used in the composite sheet is not particularly limited, and examples include spunbond nonwoven fabric, meltblown nonwoven fabric, composite nonwoven fabric that is a laminate of spunbond nonwoven fabric and meltblown nonwoven fabric, spunbond nonwoven fabric, meltblown nonwoven fabric, and spunbond nonwoven fabric. Examples include composite nonwoven fabrics that are laminates with.
バックシート４の坪量は特に限定されないが、強度及び加工性の観点から、１５ｇ／ｍ２以上６０ｇ／ｍ２以下であることが好ましい。また、着用時の蒸れを防止するため、バックシート４には、通気性を持たせることが好ましい。バックシート４に通気性を付与する方法としては特に限定されず公知の方法を採用できるが、例えば、バックシート用基材である樹脂フィルムを多孔質化する方法、バックシート用基材にエンボス加工を施す方法などが挙げられる。樹脂フィルムを多孔質化する方法の一例としては、樹脂にフィラーを含有させてフィルム化し、得られたフィルムからフィラーを除去する方法等が挙げられる。フィラーとしては例えば炭酸カルシウム等の無機塩が挙げられる。 The basis weight of the backsheet 4 is not particularly limited, but from the viewpoint of strength and workability, it is preferably 15 g/m 2 or more and 60 g/m 2 or less. Further, in order to prevent stuffiness when worn, it is preferable that the back sheet 4 has breathability. The method of imparting air permeability to the backsheet 4 is not particularly limited and any known method can be adopted, but for example, a method of making a resin film, which is the base material for the backsheet, porous, a method of embossing the base material of the backsheet, etc. Examples include methods of applying An example of a method for making a resin film porous is a method in which a resin is made to contain a filler to form a film, and the filler is removed from the obtained film. Examples of fillers include inorganic salts such as calcium carbonate.
（立体ギャザー）
立体ギャザー５は、例えば、吸収性物品１の着用者の体液の横漏れを防止するために設けられる、折り曲げ自在の一対の部材である。本実施形態の立体ギャザー５は、幅方向一端が固定端としてバックシート２の肌側面に固定され、該固定端から立設され、幅方向他端が自由端としてトップシート２の幅方向両端部近傍の第一の凸部１３の非形成領域近傍に達するように延伸され、かつ該非形成領域を吸収性物品１の長手方向両端に達するように設けられている。なお、立体ギャザー５の前記固定端の固定位置は、バックシート４の肌側面における、吸収体３を覆うトップシート２のバックシート４との接触位置又は接着位置の外側又はその近傍である。このように立体ギャザー５を設けることで、着用者の体型に合わせて吸収性物品１を変形し易くなる。また、本実施形態とは異なるが、吸収性物品１の幅方向における立体ギャザー５の外端をバックシート４の非肌側面に固定し、その内端をトップシート２に固着し、その中央を自由端となるように、構成してもよい。立体ギャザー５の形状は特に限定されず、この分野で常用されるような任意の形状とすることができる。
(3D gathers)
The three-dimensional gathers 5 are, for example, a pair of bendable members provided to prevent side leakage of bodily fluids of the wearer of the absorbent article 1. In the three-dimensional gathers 5 of this embodiment, one end in the width direction is fixed to the skin side of the backsheet 2 as a fixed end, and is erected from the fixed end, and the other end in the width direction is a free end at both ends in the width direction of the top sheet 2. It is extended so as to reach the vicinity of the non-forming region of the first convex portion 13 in the vicinity, and is provided so that the non-forming region reaches both ends of the absorbent article 1 in the longitudinal direction. Note that the fixed position of the fixed end of the three-dimensional gathers 5 is outside or in the vicinity of the contact position or adhesion position with the backsheet 4 of the top sheet 2 covering the absorbent core 3 on the skin side of the backsheet 4. By providing the three-dimensional gathers 5 in this manner, the absorbent article 1 can be easily deformed to match the wearer's body shape. Although different from this embodiment, the outer end of the three-dimensional gathers 5 in the width direction of the absorbent article 1 is fixed to the non-skin side surface of the backsheet 4, the inner end is fixed to the top sheet 2, and the center thereof is fixed to the non-skin side surface of the backsheet 4. It may be configured to have a free end. The shape of the three-dimensional gathers 5 is not particularly limited, and can be any shape commonly used in this field.
立体ギャザー５を構成する基材としては、例えば、立体ギャザー用弾性部材等が挙げられる。立体ギャザー用弾性部材としては、例えば、天然ゴム、合成ゴム、ポリウレタン等からなる、糸状、紐状、帯状のものを適宜使用することができる。立体ギャザー５としては、疎水性繊維にて形成された撥水性又は液不透過性の不織布、例えば、スパンボンド不織布やメルトブロー不織布、スパンボンド／メルトブロー／スパンボンドを積層した複合不織布等が使用される。 Examples of the base material constituting the three-dimensional gathers 5 include elastic members for three-dimensional gathers. As the elastic member for the three-dimensional gathers, for example, thread-like, string-like, or band-like materials made of natural rubber, synthetic rubber, polyurethane, etc. can be used as appropriate. As the three-dimensional gathers 5, a water-repellent or liquid-impermeable nonwoven fabric made of hydrophobic fibers, for example, a spunbond nonwoven fabric, a meltblown nonwoven fabric, a composite nonwoven fabric made by laminating spunbond/meltblown/spunbond, etc. is used. .
（消臭剤１６）
消臭剤１６は、開孔フィルム１１の第二の凸部１４と液透過性のシート１２とで囲まれた空間１５内に収容されている。消臭剤１６は、尿等の水分を含む体液と接触することから、水不溶性のものが好ましいが、水溶性消臭剤を合成樹脂等に担持させて不溶化したものを用いてもよい。水不溶性消臭剤としては、消臭機能を有する無機化合物が好ましく、その粉末がさらに好ましい。消臭機能を有する無機化合物としては公知のものを特に限定なく使用できるが、尿等の体液だけでなく、汗等に対しても消臭機能を発揮することから、例えば、酸化亜鉛を好ましく使用できる。また、消臭機能を有する無機化合物の粒径は第二の凸部１４の内部空間に収納可能な大きさであれば特に限定されない。
(Deodorant 16)
The deodorant 16 is housed in a space 15 surrounded by the second convex portion 14 of the apertured film 11 and the liquid-permeable sheet 12. The deodorant 16 is preferably water-insoluble since it comes into contact with body fluids containing water such as urine, but a water-soluble deodorant supported on a synthetic resin or the like may also be used. As the water-insoluble deodorant, an inorganic compound having a deodorizing function is preferable, and powder thereof is more preferable. Any known inorganic compound having a deodorizing function can be used without particular limitation, but zinc oxide, for example, is preferably used because it exhibits a deodorizing function not only for body fluids such as urine but also for sweat, etc. can. Further, the particle size of the inorganic compound having a deodorizing function is not particularly limited as long as it can be accommodated in the internal space of the second convex portion 14.
酸化亜鉛は、不織布１０と開孔フィルム１１とによりその移動が抑制されつつ、その一部がトップシート２（又は不織布１０）の肌側表面に移動する。また、酸化亜鉛はベビーパウダーにも利用されており、安全性は高く、手でトップシート２（又は不織布１０）の肌側表面をさわった感触はサラッとしている。さらに、酸化亜鉛は発汗や皮脂を抑制する効果がある。そのため、排尿前でも蒸れによる汗臭の発生自体を抑制することが期待できる。 The movement of zinc oxide is suppressed by the nonwoven fabric 10 and the perforated film 11, and a portion of the zinc oxide moves to the skin-side surface of the top sheet 2 (or the nonwoven fabric 10). Furthermore, zinc oxide is also used in baby powder, and is highly safe, and the skin-side surface of the top sheet 2 (or nonwoven fabric 10) feels smooth when touched by hand. Furthermore, zinc oxide has the effect of suppressing sweating and sebum. Therefore, it is expected that the generation of sweat odor due to stuffiness can be suppressed even before urination.
［トップシートの製造方法］
トップシート２は、例えば、第一工程（図４）と、第二工程（図５）と、第三工程（図６）と、第四工程（図７）と、を含む製造方法により作製できる。この製造方法は、図３に示すトップシート製造装置を用いる製造方法である。以下詳細に説明する。ただし、この製造方法は、一例であり、これ以外の製造方法によりトップシート２を作製することができる。
[Top sheet manufacturing method]
The top sheet 2 can be produced, for example, by a manufacturing method including a first step (FIG. 4), a second step (FIG. 5), a third step (FIG. 6), and a fourth step (FIG. 7). . This manufacturing method uses the top sheet manufacturing apparatus shown in FIG. 3. This will be explained in detail below. However, this manufacturing method is only an example, and the top sheet 2 can be manufactured by other manufacturing methods.
図３のトップシート製造装置は、表面に吸引可能な孔２０ａが複数設けられたサクションロール２０（以下単に「ロール２０」ともいう）と、ロール２０に対して不織布１０を供給する供給装置（不図示）と、ロール２０上の不織布１０に対して開孔フィルム１１を供給する供給装置（不図示）と、ロール２０上の開孔フィルム１１に対して、ロール２０と協働して第二の凸部１４を形成する凸部用押し型２１ａを表面に有し、かつ内部に加熱装置（不図示）を有する型押しロール２１と、開孔フィルム１１の第二の凸部１４の内部空間に消臭剤１６を供給する消臭剤散布装置２２と、ロール２０上の第二の凸部１４の内部空間に消臭剤１６が充填された状態の積層体に液透過性シート１２を供給する供給装置（不図示）と、前記積層体の表面に供給される前の液透過性シート１２の表面に接着剤を所定パターンで塗布する接着剤供給装置２３と、を備えている。なお、ロール２０の内部では、第１工程から第２工程までは孔２０ａによる吸引が実施され、それ以外では吸引が行われないように、エアーの流れを制御する構造が組み込まれている。 The top sheet manufacturing apparatus shown in FIG. 3 includes a suction roll 20 (hereinafter also simply referred to as "roll 20") having a plurality of suction holes 20a on its surface, and a supply device (nonwoven fabric) that supplies nonwoven fabric 10 to the roll 20. ), a supply device (not shown) that supplies the perforated film 11 to the nonwoven fabric 10 on the roll 20 , and a second supply device (not shown) that supplies the perforated film 11 to the nonwoven fabric 10 on the roll 20 in cooperation with the roll 20 . An embossing roll 21 having a convex-forming die 21a on its surface that forms the convex portions 14 and a heating device (not shown) inside, and an internal space of the second convex portions 14 of the apertured film 11. A deodorant spraying device 22 that supplies the deodorant 16 and a liquid-permeable sheet 12 are supplied to the laminate in which the internal space of the second convex portion 14 on the roll 20 is filled with the deodorant 16. It includes a supply device (not shown) and an adhesive supply device 23 that applies adhesive in a predetermined pattern to the surface of the liquid-permeable sheet 12 before being supplied to the surface of the laminate. In addition, inside the roll 20, a structure is incorporated to control the flow of air so that suction is performed through the holes 20a from the first step to the second step, and suction is not performed at other times.
（第１工程）
図４に示すように、ロール２０はその表面に吸引可能な孔２０ａが設けられている。第１工程は，不織布１０に複数の第一の凸部１３を成形する工程であり、図３中「Ａ」で示される領域で実施される。本工程では、ロール２０の表面に不織布１０が供給され（図４（ａ））、不織布１０が吸引孔２０ａの真上まで搬送されると、孔２０ａにより吸引され、部分的に変形して凸部１３が形成される（図４（ｂ））。このとき、複数の凸部１３がほぼ同時に形成される。
(1st step)
As shown in FIG. 4, the roll 20 is provided with suction holes 20a on its surface. The first step is a step of forming a plurality of first convex portions 13 on the nonwoven fabric 10, and is carried out in the region indicated by "A" in FIG. In this process, the nonwoven fabric 10 is supplied to the surface of the roll 20 (FIG. 4(a)), and when the nonwoven fabric 10 is conveyed to just above the suction hole 20a, it is sucked by the hole 20a, partially deforms, and becomes convex. A portion 13 is formed (FIG. 4(b)). At this time, a plurality of convex portions 13 are formed almost simultaneously.
（第２工程）
第２工程は、開孔フィルム１１に複数の第二の凸部１４を形成する工程であり、図３中「Ｂ」で示される領域で実施される。本工程では、不織布１０の上に開孔フィルム１１が供給され（図５（ｃ））、次いで、複数の凸部１３を有する不織布１０に開孔フィルム１１が積層した状態で、型押しロール２１との噛み合わせ領域に搬送され、開孔フィルム１１が型押しロール２１にニップされることで、型押しロール２１の凸部用押し型２１ａで開孔フィルム１１の第二の凸部１４を成形する（図５（ｄ））。
(Second process)
The second step is a step of forming a plurality of second convex portions 14 on the apertured film 11, and is carried out in the area indicated by "B" in FIG. In this step, the perforated film 11 is supplied onto the nonwoven fabric 10 (FIG. 5(c)), and then the embossing roll 21 is The apertured film 11 is conveyed to the engagement area with the embossing roll 21, and the second convex part 14 of the apertured film 11 is formed by the convex part pressing die 21a of the embossing roll 21. (Figure 5(d)).
ここで、型押しロール２１は、１００℃以上１３０℃以下に加温する。ロール２０は加温しない。この温度の範囲であれば、凸部用押し型２１ａにより開孔フィルム１１が溶融することはなく、適度に軟化され成形される。また凸部用押し型２１ａに対する雌型がなく、不織布１０に熱が伝わりにくく、繊維が溶解しフィルム化しないため。吸収性能が低下することはない。凸部用押し型２１ａの高さは好ましくは５ｍｍ以下である。凸部用押し型２１ａの高さが５ｍｍを超える場合は、ロール２０の孔２０ａから脱落するときに凸部用押し型２１ａがロール２０に当たり、凸部用押し型２１ａひいては型押しロール２１に傷をつける可能性がある。 Here, the embossing roll 21 is heated to 100°C or more and 130°C or less. Roll 20 is not heated. Within this temperature range, the perforated film 11 will not be melted by the convex-forming mold 21a, and will be appropriately softened and molded. In addition, there is no female mold for the convex part pressing mold 21a, so heat is not easily transmitted to the nonwoven fabric 10, and the fibers do not melt and form a film. Absorption performance does not deteriorate. The height of the protrusion mold 21a is preferably 5 mm or less. If the height of the protrusion-forming die 21a exceeds 5 mm, the protrusion-forming die 21a will hit the roll 20 when falling from the hole 20a of the roll 20, and the convex-forming die 21a and eventually the embossing roll 21 may be damaged. There is a possibility of attaching.
（第３工程）
図６に示すように、第３工程は、第二の凸部１４の内部空間に消臭剤１６を供給する工程である。第１、第２工程（図３中のＡ、Ｂの領域）を過ぎたところでは、ロール２０の孔２０ａに不織布１０と開孔フィルム１１の第一、第二の凸部１３、１４は重なって嵌っているだけの状態になる。本工程では、消臭剤散布装置２２により、これらの積層体の上部から、第二の凸部１４の内部空間に消臭剤１６が供給される（図５（ｅ））。消臭剤散布装置２２はロール２０の回転速度に同期して第二の凸部１４の内部空間に定量的に消臭剤１６が落ち込むように制御できるものを特に制限はなく使用できる。そして、第二の凸部１４内に消臭剤１６が充填された状態になる（図６（ｆ））。
(3rd step)
As shown in FIG. 6, the third step is a step of supplying the deodorant 16 into the internal space of the second convex portion 14. After the first and second steps (areas A and B in FIG. 3), the first and second convex portions 13 and 14 of the nonwoven fabric 10 and the perforated film 11 overlap in the holes 20a of the roll 20. It's just stuck in place. In this step, the deodorant spraying device 22 supplies the deodorant 16 from the top of these stacked bodies to the internal space of the second convex portion 14 (FIG. 5(e)). The deodorant spraying device 22 may be any device that can be controlled so that the deodorant 16 falls quantitatively into the internal space of the second convex portion 14 in synchronization with the rotational speed of the roll 20 without any particular limitations. Then, the second convex portion 14 is filled with the deodorant 16 (FIG. 6(f)).
（第４工程）
図７に示すように、第４工程は、第二の凸部１４内に消臭剤１６が充填された、不織布１０と開孔シート１１との積層体中の開孔シート１１と、液透過性シート１２とを貼り合わせる工程である。本工程では、第３工程で消臭剤１６を第二の凸部１４の内部空間に供給したのち、接着剤供給装置２３により液透過性シート１２の表面（貼り合わせ面）にホットメルトなど接着剤を所定パターンであらかじめ塗布し、これを開孔シート１１上に供給して貼り合わせる（図７（ｇ））。こうして、消臭機能をもった立体シートであるトップシート２が得られる。
(4th step)
As shown in FIG. 7, in the fourth step, the perforated sheet 11 in the laminate of the nonwoven fabric 10 and the perforated sheet 11, in which the second convex portion 14 is filled with the deodorant 16, and the liquid permeable This is a step of pasting together the adhesive sheet 12. In this step, after the deodorant 16 is supplied into the internal space of the second convex portion 14 in the third step, the adhesive supply device 23 applies adhesive such as hot melt to the surface (bonding surface) of the liquid permeable sheet 12. The agent is applied in advance in a predetermined pattern, and this is supplied onto the perforated sheet 11 and bonded together (FIG. 7(g)). In this way, the top sheet 2, which is a three-dimensional sheet with a deodorizing function, is obtained.
［吸収性物品の製造方法］
吸収性物品１の製造方法としては、特に限定はなく、従来公知の方法を採用することができ、例えば、衣類側から、バックシート４、吸収体３、トップシート２の順に積層し、立体ギャザー５の幅方向一端をバックシート４の所定位置に固定するとともに、トップシート２とバックシート４とを一部又は全周に亘ってホットメルト接着剤やヒートエンボス、超音波エンボス、高周波エンボス等を用いて固定することで製造することができる。そして、これを包装体に個別包装した後、長手方向に３つ折りにして折り畳めばよい。
[Manufacturing method of absorbent article]
The method for manufacturing the absorbent article 1 is not particularly limited, and any conventionally known method can be adopted. For example, the back sheet 4, the absorbent body 3, and the top sheet 2 are laminated in this order from the clothing side to form a three-dimensional gather. 5 in the width direction is fixed at a predetermined position on the back sheet 4, and the top sheet 2 and the back sheet 4 are partially or entirely covered with hot melt adhesive, heat embossing, ultrasonic embossing, high frequency embossing, etc. It can be manufactured by using and fixing. Then, after wrapping this individually in a package, it may be folded into three in the longitudinal direction.
以下に実施例及び比較例を挙げ、本発明を具体的に説明する。本発明は、これらの実施例及び比較例により限定されるものではない。
（実施例及び比較例）
＜サンプルの作成方法＞
（立体トップシート）
坪量２５ｇ／ｍ２のエアスルー不織布を直径７ｍｍの孔に吸引し、第一の凸部を形成したのち、７５０μｍの開孔をもつ開孔フィルムを重ね、１２０℃に加熱した直径６ｍｍの半球状の金型で押圧することでエアスルー不織布と開孔フィルムが重なった第二の凸部を成形した。尚、第一、第二の凸部は幅６５ｍｍ長さ２３０ｍｍのシートの中央において、幅３０ｍｍ、長さ１５０ｍｍの領域に４３個できるように設計した。そして、第二の凸部の内部空間にトータルで１ｇになるように酸化亜鉛を分割していれ、開孔フィルム側に坪量１６ｇ／ｍ２のティシューを貼り立体トップシートを得た。
EXAMPLES The present invention will be specifically described below with reference to Examples and Comparative Examples. The present invention is not limited by these Examples and Comparative Examples.
(Example and comparative example)
<How to create a sample>
(3D top sheet)
An air-through nonwoven fabric with a basis weight of 25 g/ m2 was sucked into a hole with a diameter of 7 mm to form a first convex portion, and then a perforated film with an opening of 750 μm was layered, and a hemispherical fabric with a diameter of 6 mm was heated to 120°C. By pressing with a mold, a second convex portion in which the air-through nonwoven fabric and the apertured film overlapped was formed. The first and second protrusions were designed so that 43 of them could be formed in an area of 30 mm in width and 150 mm in length at the center of a sheet with a width of 65 mm and a length of 230 mm. Then, zinc oxide was divided into 1 g in total into the inner space of the second convex portion, and a tissue having a basis weight of 16 g/m 2 was attached to the apertured film side to obtain a three-dimensional top sheet.
＜吸収性物品の作製＞
幅方向両端近傍に立体ギャザーを固定した坪量３５ｇ／ｍ２のバックシート用フィルムの上に、フラッフパルプ２．５ｇ、ＳＡＰ ２．２ｇからなる長さ２００ｍｍ、最大幅７０ｍｍ、中央部で６０ｍｍに狭くなる砂時計形状の吸収体をのせ、立体トップシートを重ね、長さ２３０ｍｍ、最大幅７５ｍｍになるようにトムソン刃で打ち抜くことで吸収性物品を得た。また比較用のサンプルとして、酸化亜鉛を添加していない以外は実施例と同じ内容の吸収性物品を作製した。
<Production of absorbent article>
On top of a back sheet film with a basis weight of 35 g/m 2 with three-dimensional gathers fixed near both ends in the width direction, a sheet made of fluff pulp 2.5 g and SAP 2.2 g has a length of 200 mm, a maximum width of 70 mm, and a width of 60 mm at the center. An absorbent article was obtained by placing an absorbent body in the shape of a narrowing hourglass, overlapping a three-dimensional top sheet, and punching it out with a Thomson blade to a length of 230 mm and a maximum width of 75 mm. Moreover, as a sample for comparison, an absorbent article having the same content as the example except that zinc oxide was not added was produced.
＜測定方法：イソ吉草酸による消臭テスト＞
イソ吉草酸をヘキサンに溶解し２重量％のイソ吉草酸のヘキサン溶液を調整した。２０リットルのコック付きのＰＶＤＦバッグの一部をカットし、内部にシャーレを入れ、シャーレにイソ吉草酸のヘキサン溶液を２００マイクロリットルいれ、ＰＶＤＦバッグの開口部をアルミテープでふさぎ、コックから空気を１６リットル加え３０分置き、７０ｐｐｍのイソ吉草酸ガスを調整した。
別のＰＶＤＦバッグの一部をカットし、作製した吸収性物品を内部にいて、開口部をアルミテープでふさいだ。先に調製した７０ｐｐｍのイソ吉草酸ガス３リットルをコックから加えた。３０分後と６０分後のイソ吉草酸の濃度を酢酸用のガス検知管（ＧＡＳＴＥＣ ８１Ｌまたは８１）を用いて測定した。結果を表１に示す。
<Measurement method: Deodorization test using isovaleric acid>
Isovaleric acid was dissolved in hexane to prepare a 2% by weight hexane solution of isovaleric acid. Cut a part of a 20 liter PVDF bag with a stopcock, put a Petri dish inside it, put 200 microliters of isovaleric acid in hexane solution in the Petri dish, cover the opening of the PVDF bag with aluminum tape, and let air out from the stopcock. Add 16 liters and leave for 30 minutes to adjust 70 ppm of isovaleric acid gas.
A part of another PVDF bag was cut, the fabricated absorbent article was placed inside, and the opening was covered with aluminum tape. Three liters of the 70 ppm isovaleric acid gas prepared earlier was added from the cock. The concentration of isovaleric acid after 30 minutes and 60 minutes was measured using a gas detection tube for acetic acid (GASTEC 81L or 81). The results are shown in Table 1.
＜測定結果＞
パルプ自体がイソ吉草酸を吸着しやすいため、酸化亜鉛を添加しない場合でもイソ吉草酸の濃度は低下するが、実施例で使用したパルプの重量であれば１０から２０ｐｐｍの間ぐらいが限界であり、それ以上は吸着しない。しかしながら、本実施例では酸化亜鉛を１ｇと高く配合できるため悪臭をより吸収できる（本発明並みの量の酸化亜鉛を、塗工によりトップシートに添加することは不可能である）。
<Measurement results>
Since the pulp itself easily adsorbs isovaleric acid, the concentration of isovaleric acid will decrease even if zinc oxide is not added, but if the weight of the pulp used in the example is used, the limit is between 10 and 20 ppm. , it will not absorb any more. However, in this example, as high as 1 g of zinc oxide can be blended, bad odors can be better absorbed (it is impossible to add zinc oxide in the same amount as in the present invention to the top sheet by coating).
以上、本発明を、実施形態を用いて説明したが、本発明の技術的範囲は上記の実施形態の範囲には限定されないことは言うまでもなく、上記実施形態に、多様な変更又は改良を加えることが可能であることが当業者に明らかである。また、そのような変更又は改良を加えた形態も本発明の技術的範囲に含まれ得ることが、特許請求の範囲の記載から明らかである。 Although the present invention has been described above using the embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope of the above embodiments, and various changes or improvements can be made to the above embodiments. It is clear to the person skilled in the art that this is possible. Furthermore, it is clear from the claims that forms with such changes or improvements may also be included within the technical scope of the present invention.
１ 吸収性物品
２ トップシート
３ 吸収体
４ バックシート
５ 立体ギャザー
１０ 不織布
１１ 開孔フィルム
１２ 液透過性シート
１３ 第一の凸部
１４ 第二の凸部
１５ 第二の凸部の内部空間
１６ 消臭剤
２０ サクションロール
２０ａ 孔
２１ 型押しロール
２１ａ 凸部用押し型
２２ 消臭剤散布装置
２３ 接着剤供給装置
２５ リブ
２６ 開孔
1 Absorbent article 2 Top sheet 3 Absorber 4 Back sheet 5 Three-dimensional gathers 10 Nonwoven fabric 11 Perforated film 12 Liquid permeable sheet 13 First convex portion 14 Second convex portion 15 Internal space of second convex portion 16 Disposal Odor agent 20 Suction roll 20a Hole 21 Embossing roll 21a Embossing mold for convex portions 22 Deodorant spraying device 23 Adhesive supply device 25 Rib 26 Opening
Claims (7)
その内部が中空である、互いに離隔した複数の第一の凸部を有する液透過性の不織布と、
前記不織布と重ね合わせたときに前記第一の凸部と対応する位置にあり、その内部が中空である複数の第二の凸部、及び、開孔径が５００μｍ以上９００μｍ以下の範囲にある複数の開孔を有し、前記不織布が上側になるように重ねられる前記開孔フィルムと、
前記開孔フィルムの下に貼合わされる液透過性のシートと、
前記第二の凸部と前記液透過性のシートとで囲まれた、前記第二の凸部の内部空間に収納された消臭剤と、
を備えることを特徴とする、吸収性物品用立体トップシート。 A three-dimensional top sheet for absorbent articles used as a top sheet of absorbent articles,
a liquid-permeable nonwoven fabric that is hollow inside and has a plurality of first convex portions spaced apart from each other;
a plurality of second convex portions that are hollow inside and are located at positions corresponding to the first convex portions when superimposed on the nonwoven fabric; and a plurality of second convex portions each having an opening diameter in the range of 500 μm or more and 900 μm or less. the perforated film having perforations and stacked so that the nonwoven fabric is on the upper side;
a liquid-permeable sheet laminated under the perforated film;
a deodorizer contained in an internal space of the second convex portion surrounded by the second convex portion and the liquid-permeable sheet;
A three-dimensional top sheet for absorbent articles, comprising:
前記トップシートが、請求項１～６のいずれか１項記載の吸収性物品用立体トップシートであることを特徴とする、吸収性物品。
An absorbent article comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body interposed between the top sheet and the back sheet,
An absorbent article, wherein the top sheet is the three-dimensional top sheet for absorbent articles according to any one of claims 1 to 6 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019180864A JP7382195B2 (en) | 2019-09-30 | 2019-09-30 | Three-dimensional top sheet for absorbent articles and absorbent articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019180864A JP7382195B2 (en) | 2019-09-30 | 2019-09-30 | Three-dimensional top sheet for absorbent articles and absorbent articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2021053246A JP2021053246A (en) | 2021-04-08 |
| JP7382195B2 true JP7382195B2 (en) | 2023-11-16 |
Family
ID=75271843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019180864A Active JP7382195B2 (en) | 2019-09-30 | 2019-09-30 | Three-dimensional top sheet for absorbent articles and absorbent articles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7382195B2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003290290A (en) | 2002-02-04 | 2003-10-14 | Nippon Shokubai Co Ltd | Absorbent structure, its production process, and absorbent article comprising said absorbent structure |
| JP2006271650A (en) | 2005-03-29 | 2006-10-12 | Daio Paper Corp | Absorbent article and its surface sheet |
| JP2008245959A (en) | 2007-03-30 | 2008-10-16 | Nippon Paper Crecia Co Ltd | Absorbent article |
| JP2009106464A (en) | 2007-10-30 | 2009-05-21 | Yamatani Inc | Odor-absorbing sheet and method of manufacturing the same |
| JP2016067749A (en) | 2014-09-30 | 2016-05-09 | ユニ・チャーム株式会社 | Absorbent article |
-
2019
- 2019-09-30 JP JP2019180864A patent/JP7382195B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003290290A (en) | 2002-02-04 | 2003-10-14 | Nippon Shokubai Co Ltd | Absorbent structure, its production process, and absorbent article comprising said absorbent structure |
| JP2006271650A (en) | 2005-03-29 | 2006-10-12 | Daio Paper Corp | Absorbent article and its surface sheet |
| JP2008245959A (en) | 2007-03-30 | 2008-10-16 | Nippon Paper Crecia Co Ltd | Absorbent article |
| JP2009106464A (en) | 2007-10-30 | 2009-05-21 | Yamatani Inc | Odor-absorbing sheet and method of manufacturing the same |
| JP2016067749A (en) | 2014-09-30 | 2016-05-09 | ユニ・チャーム株式会社 | Absorbent article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021053246A (en) | 2021-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2441038C (en) | Absorbent article having hydrophobic leak protection zones | |
| JP5868110B2 (en) | Absorbent articles | |
| CN105431120B (en) | Absorbent article with pocket and associated method | |
| JP5820706B2 (en) | Absorbent articles | |
| US20040220539A1 (en) | Absorbent article with improved absorbency performance | |
| JP7382195B2 (en) | Three-dimensional top sheet for absorbent articles and absorbent articles | |
| JP2017080028A (en) | Absorbent article | |
| JP6410228B2 (en) | Absorbent article and manufacturing method thereof | |
| JP7338108B2 (en) | absorbent article | |
| JP7286280B2 (en) | Absorbent body and absorbent article with said absorbent body | |
| JP2021065585A (en) | Absorbent article | |
| JP6701556B2 (en) | Absorbent article | |
| JP7171986B2 (en) | absorbent article | |
| JP7344146B2 (en) | absorbent articles | |
| JP7454447B2 (en) | absorbent articles | |
| JP7488688B2 (en) | Absorbent articles | |
| US20230165736A1 (en) | Embossed absorbent systems and absorbent articles including the same | |
| JP7298967B2 (en) | absorbent article | |
| JP7436137B2 (en) | absorbent articles | |
| RU2746547C1 (en) | Disposable hygiene product | |
| JP7063064B2 (en) | Absorbent article | |
| JP7067200B2 (en) | Absorbent article | |
| JP2009291283A (en) | Absorbent article | |
| JP2022175672A (en) | absorbent article | |
| JP2021159542A (en) | Absorber and absorbent article |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220902 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230526 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230606 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230721 |
|
| 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: 20231031 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20231106 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 7382195 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |