JPS63117754A - Absorbable article - Google Patents
Absorbable articleInfo
- Publication number
- JPS63117754A JPS63117754A JP61263543A JP26354386A JPS63117754A JP S63117754 A JPS63117754 A JP S63117754A JP 61263543 A JP61263543 A JP 61263543A JP 26354386 A JP26354386 A JP 26354386A JP S63117754 A JPS63117754 A JP S63117754A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- hydrophobic polymer
- leak
- fiber base
- present
- 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.)
- Granted
Links
- 230000002745 absorbent Effects 0.000 claims description 31
- 239000002250 absorbent Substances 0.000 claims description 31
- 239000000835 fiber Substances 0.000 claims description 28
- 229920001600 hydrophobic polymer Polymers 0.000 claims description 28
- 229920000642 polymer Polymers 0.000 claims description 22
- 230000009477 glass transition Effects 0.000 claims description 16
- 239000011324 bead Substances 0.000 claims description 15
- 239000002131 composite material Substances 0.000 claims description 8
- 239000012466 permeate Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 16
- 230000035699 permeability Effects 0.000 description 12
- 239000000203 mixture Substances 0.000 description 10
- 210000001124 body fluid Anatomy 0.000 description 9
- 239000010839 body fluid Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 8
- -1 polyethylene Polymers 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 7
- 239000010408 film Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000003094 microcapsule Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- 208000010201 Exanthema Diseases 0.000 description 2
- 206010021639 Incontinence Diseases 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 210000001217 buttock Anatomy 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 201000005884 exanthem Diseases 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 238000007646 gravure printing Methods 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002175 menstrual effect Effects 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 206010037844 rash Diseases 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229920005570 flexible polymer Polymers 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 210000004392 genitalia Anatomy 0.000 description 1
- 210000004251 human milk Anatomy 0.000 description 1
- 235000020256 human milk Nutrition 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、生理用ナプキン、使い捨ておむつ、失禁者用
パッド、春用パッド、母乳パッド等の吸収性物品に関し
、更に詳しくは、防漏シートとして、体液不透過性で且
つ透湿性を有するばかりでなく、自己非接着型のズレ止
め効果（アンチスリップ性）を有するシートを用いてな
る吸収性物品に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to absorbent articles such as sanitary napkins, disposable diapers, incontinent pads, spring pads, and breast milk pads, and more specifically to leak-proof sheets. The present invention relates to an absorbent article using a sheet that is not only impermeable to body fluids and moisture permeable, but also has a self-adhesive non-slip effect (anti-slip property).
従来、生理用ナプキン、使い捨ておむつ、母乳パッド、
失禁者用パッド等の吸収性物品はパルプ、吸収紙等から
なる吸収層と、防漏を目的とした防水紙、又はポリエチ
レンフィルム等をラミネートした一般にポリラミ防水紙
と呼ばれる防漏シートと、表面及び外側を被覆してなる
表面シート及び両面粘着テープ等のズレ止め材から構成
されている。Traditionally, sanitary napkins, disposable diapers, breast pads,
Absorbent articles such as incontinence pads have an absorbent layer made of pulp, absorbent paper, etc., a leak-proof sheet laminated with waterproof paper or polyethylene film to prevent leakage, and a surface and It consists of a surface sheet covering the outside and a slip-preventing material such as double-sided adhesive tape.
当該防漏シートとしては、従来その機能として、経血や
尿、乳、便等の体液が漏れ出すのを防止する為に、ポリ
エチレン等の合成樹脂フィルムや、紙又は不織布等の基
台に、ポリエチレン等の合成樹脂フィルムをラミネート
した所謂ポリラミ防水紙が用いられてきた。この様な防
漏シートは、殆ど蒸気透過性を有さない為に、吸収性物
品に一旦体液が吸収されると、その後は体液量が増加す
る事はあっても蒸散によって減少する事は殆どない。従
って、体液が蒸散するとすれば、吸収性物品の使用面か
らのみであり、使用者は、陰部や臀部近傍の湿度が増加
し、「むれ」あるいは、不快感を生じる事が多く、吸収
性物品使用中の「むれ」が原因となって、「かぶれ」や
「炎症」等の疾患を起こすことも多々ある。Conventionally, the function of the leak-proof sheet is to prevent body fluids such as menstrual blood, urine, milk, and feces from leaking out, and to prevent the leakage of body fluids such as menstrual blood, urine, milk, and feces. So-called polylaminated waterproof paper laminated with a synthetic resin film such as polyethylene has been used. This kind of leak-proof sheet has almost no vapor permeability, so once body fluid is absorbed into the absorbent article, the amount of body fluid may increase after that, but it rarely decreases due to transpiration. do not have. Therefore, if body fluids evaporate, it is only from the surface of the absorbent article that is used, and the user often experiences "stuffiness" or discomfort due to increased humidity near the genitals and buttocks. "Stuffiness" during use often causes diseases such as "rash" and "inflammation."
またズレ止め材に関しては、生理用ナプキンにおけるズ
レ止めテープは１０数年前に初めて設置され、現在に至
っている。その間材料的には両面粘着テープ、あるいは
ホットメルトタイプを用い、形状的には、粘着テープの
場合には、縦１０〜１５ｍｎ＋、巾約４０〜５０ｍｎ＋
、また、ホットメルトの場合には、長さ１６０〜１９０
ｍｍ、巾約３〜５ｍｍに貼布又は塗布し、その上面を
離型紙で覆ったものが主として提供されてきた。Regarding anti-slip materials, anti-slip tapes for sanitary napkins were first installed over 10 years ago and are still used today. For the material used, double-sided adhesive tape or hot melt type is used. In the case of adhesive tape, the length is 10 to 15 mm + and the width is approximately 40 to 50 mm +.
, and in the case of hot melt, the length is 160 to 190
It has mainly been provided that the adhesive is pasted or coated to a width of about 3 to 5 mm, and the upper surface is covered with a release paper.
しかしこれらの従来のズレ止めテープでは使用装着時に
正規の位置を決定する事が困難であり、その結果、フィ
ツト性が損なわれ、違和感をもたらす原因となる。又、
基本的に股間前側と臀部側とは、歩行時、又は、運動時
の動きが異なり、ズレ又は生理用ナプキン自体が移動す
ることになり、十分な効果が見られずしばしばモレの原
因となる。これは吸収体の性能を阻害するばかりでなく
、使用者に精神的不安を与える事は言うまでもない。However, with these conventional anti-slip tapes, it is difficult to determine the proper position during use and installation, resulting in poor fit and discomfort. or,
Basically, the front side of the crotch and the buttocks move differently when walking or exercising, resulting in misalignment or movement of the sanitary napkin itself, which is not sufficiently effective and often causes leakage. Needless to say, this not only impairs the performance of the absorber, but also causes mental anxiety to the user.
従って、使用時に「むれ」がなく、且つ装着を容易にし
装着時に股間の複雑な形状に正しくフィツトして、高い
ズレ止め効果を有する吸収性物品が一日も早く出現する
事が待ち望まれる。Therefore, it is hoped that an absorbent article will appear as soon as possible that does not cause "stuffiness" during use, is easy to wear, properly fits the complex shape of the crotch when worn, and has a high anti-slip effect.
そこで本発明者らは、これら従来の問題点を解決すべく
鋭意検討を重ねた結果、本発明に至った。Therefore, the inventors of the present invention have conducted extensive studies to solve these conventional problems, and as a result, have arrived at the present invention.
本発明の目的は、使用時における「むれ」を解消し、尚
且つ使用時における装着位置の決定を容易にし、使用中
の種々の股間の動きに対して有効なズレ防止力を発揮す
る透湿性且つアンチスリップ性を有する吸収性物品を提
供する事にある。The purpose of the present invention is to eliminate "stuffiness" during use, facilitate the determination of the wearing position during use, and provide moisture permeability that effectively prevents slippage during various movements of the crotch during use. Another object of the present invention is to provide an absorbent article having anti-slip properties.
本発明はかかる目的を達成し、更に使用者に有益な吸収
性物品を提供すべくなされたものであり、具体的には製
造時においてあまり高度な技術が要求されず、且つ、有
効な透湿性及びアンチスリップ性を有する吸収性物品に
関するものである。The present invention has been made to achieve the above object and provide an absorbent article that is more beneficial to the user. The present invention also relates to an absorbent article having anti-slip properties.
即ち、本発明は、液透過性の表面シート、液不透過性の
防漏シート及び両シートの間に配置された吸収層を有す
る吸収性物品において、防漏シートが、シート状繊維基
台とガラス転移温度が０℃以下の疎水性高分子と発泡さ
れた発泡性ポリマービーズとからなる複合体であり、シ
ート状繊維基台の少なくとも片面が疎水性高分子により
被覆され、且つ発泡性ポリマービーズは疎水性高分子に
よりシート状繊維基台上に固定されていることを特徴と
する吸収性物品を提供するものである。That is, the present invention provides an absorbent article having a liquid-permeable top sheet, a liquid-impermeable leak-proof sheet, and an absorbent layer disposed between the two sheets, in which the leak-proof sheet is connected to a sheet-like fiber base. A composite consisting of a hydrophobic polymer with a glass transition temperature of 0° C. or less and foamed foamed polymer beads, in which at least one side of a sheet-like fiber base is coated with the hydrophobic polymer, and the foamed polymer beads provides an absorbent article characterized in that it is fixed on a sheet-like fiber base by a hydrophobic polymer.
以下、本発明の実施態様を図面を用いて説明するが、本
発明がこれらに限定されるものでない事は言うまでもな
い。Embodiments of the present invention will be described below with reference to the drawings, but it goes without saying that the present invention is not limited thereto.
第１図＋ａ）〜（ｄｌは、本発明の吸収性物品の各種実
施例を示す生理用ナプキンの横断面図である。1+a) to (dl) are cross-sectional views of sanitary napkins showing various embodiments of the absorbent article of the present invention.
本発明の吸収性物品は簡単には表面シート１、吸収層２
、及び防漏シート３から構成されているが、本発明は防
漏シート３に特徴がある。即ち、本発明の防漏シートは
、シート状繊維基台の少なくとも片面に、ガラス転移温
度がＱ ’Ｃ以下の疎水性高分子と熱発泡性ポリマーと
の混合物を、印刷又は塗布し、シート状繊維基台中に浸
透した状態で乾燥、次いで加熱発泡せしめる事によって
得られるものである。The absorbent article of the present invention can be briefly described as having a top sheet 1, an absorbent layer 2,
, and a leak-proof sheet 3. However, the present invention is characterized by the leak-proof sheet 3. That is, the leak-proof sheet of the present invention is produced by printing or coating a mixture of a hydrophobic polymer and a thermally foamable polymer having a glass transition temperature of Q'C or less on at least one side of a sheet-like fiber base. It is obtained by drying it in a state in which it has penetrated into the fiber base, and then heating and foaming it.
従来、透湿膜の製造方法としては、湿式製膜法が公知で
ある。即ち、疎水性ポリマー溶液を疎水性ポリマーに対
しては非溶媒であり、疎水性ポリマー溶液の溶媒とは自
由に混和し得る液体で処理し、ポリマーを凝固させるこ
とにより膜に微細な孔を形成する技術である。しかしこ
の方法で均一な孔を形成することは極めて困難である。Conventionally, a wet film forming method is known as a method for manufacturing a moisture permeable film. That is, a hydrophobic polymer solution is treated with a liquid that is a non-solvent for the hydrophobic polymer but is freely miscible with the solvent of the hydrophobic polymer solution, and the polymer is coagulated to form fine pores in the membrane. It is a technology that However, it is extremely difficult to form uniform pores using this method.
一方、疎水性ポリマー溶液に予め低分子物質や無機塩等
を添加し、製膜後、ポリマーには非溶媒でこれら添加物
を溶出できる溶媒にて溶出し、透湿膜を製造する技術が
公知である（特開昭４８−１９７０４号公報等）。この
技術では透湿性を付与するには添加物を増加させる必要
があり、従って防水性が低下する欠点がある。更にこれ
ら低分子物質や無機塩を均一に混合製膜すれば、これら
の物質を完全に溶出させるのは極めて困難となり、均質
な透湿膜が得難い欠点がある。On the other hand, there is a known technology in which a low-molecular substance, an inorganic salt, etc. are added in advance to a hydrophobic polymer solution, and after film formation, the polymer is eluted with a non-solvent solvent that can elute these additives to produce a moisture-permeable membrane. (Japanese Unexamined Patent Publication No. 48-19704, etc.). This technique requires an increase in additives in order to impart moisture permeability, and therefore has the drawback of reduced waterproofness. Furthermore, if these low-molecular substances and inorganic salts are uniformly mixed to form a film, it is extremely difficult to completely elute these substances, resulting in the disadvantage that it is difficult to obtain a homogeneous moisture-permeable film.
従来、透湿膜を製造するには上記のような欠点があり、
厳密な製造条件と複雑な工程が必要であり、生産性も劣
っていたので。体液吸収性物品の防漏シートとして使用
するには甚だ不十分なものであった。Traditionally, manufacturing moisture permeable membranes has the above drawbacks.
Strict manufacturing conditions and complicated processes were required, and productivity was low. This was extremely inadequate for use as a leak-proof sheet for body fluid absorbent articles.
本発明の防漏シートは、シート状繊維基台の少なくとも
片面に、ガラス転移温度が０℃以下の疎水性高分子と熱
発泡性ポリマーとの混合物を印刷又は塗布し、シート状
繊維基台中に浸透した状態で乾燥次いで加熱発泡せしめ
る事によって、疎水性高分子がシート状繊維基台中に浸
遇し、繊維基台の繊維間隙が、疎水性高分子薄膜にて被
覆された構造の透湿膜となる。これは従来技術と異なり
、塗工乾燥という簡単な工程で製造され、生産性に優れ
、吸収性物品としても十分に使用できるものである。The leak-proof sheet of the present invention is produced by printing or coating a mixture of a hydrophobic polymer and a thermally foamable polymer with a glass transition temperature of 0°C or less on at least one side of a sheet-like fiber base, and By drying the permeated state and then heating and foaming, the hydrophobic polymer penetrates into the sheet-like fiber base, and the fiber gaps in the fiber base are covered with the hydrophobic polymer thin film. becomes. Unlike conventional techniques, this product is manufactured by a simple process of coating and drying, has excellent productivity, and can be fully used as an absorbent article.
本発明において、ガラス転移温度が０℃以下の疎水性高
分子としては種々のものが使用可能であるが、例えば（
メタ）アクリル酸メチル、（メタ）アクリル酸ブチル、
（メタ）アクリル酸２−エチルヘキシル等の（メタ）ア
クリル酸アルキルエステルのポリマーや、複数の（メタ
）アクリル酸アルキルエステルを主成分としたアクリル
樹脂やスチレン・ブタジェンゴム（ＳＢＲ）、カルボキ
シ変性ＳＢＲ、ニトリル・ブタジェンゴム（Ｎ、Ｂ、Ｒ
）、ブタジェンゴム（Ｂ、Ｒ）等の合成ゴムの他、ポリ
ウレタン樹脂、ポリ塩化ビニル樹脂、ポリ塩化ビニリデ
ン樹脂等が挙げられる。In the present invention, various hydrophobic polymers having a glass transition temperature of 0°C or less can be used, such as (
Methyl acrylate, butyl (meth)acrylate,
Polymers of (meth)acrylic acid alkyl esters such as 2-ethylhexyl (meth)acrylate, acrylic resins containing multiple (meth)acrylic acid alkyl esters as main components, styrene-butadiene rubber (SBR), carboxy-modified SBR, and nitrile.・Butadiene rubber (N, B, R
), butadiene rubber (B, R), and other synthetic rubbers, as well as polyurethane resins, polyvinyl chloride resins, polyvinylidene chloride resins, and the like.
これらの樹脂は、単独でも複数の樹脂を混合したもので
も使用することができる。これらの樹脂は使用に際し、
水に分散したエマルションの形態及び有機溶剤に溶かし
た溶液の形態のいずれでもよく、これらの形態を得る為
に用いられる乳化剤、有機溶剤は一般的に知られたもの
で良（、又、方法も公知の方法を用い、作成される。又
、これらの樹脂は必要に応じ、架橋剤を含有する事も可
能である。These resins can be used alone or in a mixture of a plurality of resins. When using these resins,
It may be in the form of an emulsion dispersed in water or in the form of a solution dissolved in an organic solvent.The emulsifier and organic solvent used to obtain these forms may be generally known ones (and the method may also be used). These resins can be prepared using a known method. These resins can also contain a crosslinking agent if necessary.
本発明においては、ポリマーのガラス転移温度を０℃以
下にする目的で上記ポリマーに必要に応じ可塑剤等を添
加配合することができる。In the present invention, a plasticizer or the like may be added to the above polymer as necessary in order to lower the glass transition temperature of the polymer to 0° C. or lower.
本発明において使用される熱発泡性ポリマービーズとし
ては、熱可塑性樹脂を共重合させて殻壁を構成し、その
内部にブタンガス等を包み込んだ熱発泡性ポリマービー
ズ（例えば、商品名マツモトマイクロスフェア−１松本
油脂製薬０＠製）が用いられる。The heat-foamable polymer beads used in the present invention include heat-foamable polymer beads (for example, Matsumoto Microspheres, a product name 1 (manufactured by Matsumoto Yushi Seiyaku 0@) is used.
本発明において使用されるガラス転移温度Ｏ℃以下の疎
水性高分子と熱発泡性ポリマービーズとの重量比（固形
物換算）は９５対５乃至４０対６０、好ましくは９０対
１０乃至５０対５０である。ガラス転移温度Ｏ℃以下の
疎水性高分子の重量比が９５対５以上ではズレ防止力が
不十分であり、又４０対６０以下では発泡後、熱発泡性
ポリマービーズの脱落が見られ好ましくない。The weight ratio (in terms of solid matter) of the hydrophobic polymer with a glass transition temperature of 0° C. or lower and the heat-expandable polymer beads used in the present invention is from 95:5 to 40:60, preferably from 90:10 to 50:50. It is. If the weight ratio of the hydrophobic polymer with a glass transition temperature of 0° C. or lower is 95:5 or more, the anti-slip force is insufficient, and if it is less than 40:60, the thermally foamable polymer beads will fall off after foaming, which is not preferable. .
ガラス転移温度０°Ｃ以下の疎水性高分子と熱発泡性ポ
リマービーズの混合物は、公知の方法により混合する事
ができ、混合物の安定性、印刷適性、塗工適性を向上さ
せるために増粘剤の添加も可能である。A mixture of hydrophobic polymers with a glass transition temperature of 0°C or lower and thermally foamable polymer beads can be mixed by a known method, and the mixture may be thickened to improve the stability, printability, and coating suitability of the mixture. It is also possible to add agents.
本発明においてシート状繊維基台に塗布されるガラス転
移温度Ｏ″Ｃ以下の疎水性高分子と熱発泡性ポリマービ
ーズとの混合物の重量は、発泡後の固形分重量として０
．１ｇ／ｍ２〜３０ｇ／ｍ”、好ましくは０．５ｇ／ｍ
” 〜２０ｇ／ｆｆｌ”であり、希望する透湿性、防漏
性、アンチスリップ性の性能によって、任意調整可能で
ある。In the present invention, the weight of the mixture of a hydrophobic polymer having a glass transition temperature of O''C or lower and thermally foamable polymer beads applied to a sheet-like fiber base is 0 as the solid content weight after foaming.
．． 1 g/m2 to 30 g/m", preferably 0.5 g/m
"~20g/ffl" and can be arbitrarily adjusted depending on the desired performance of moisture permeability, leak-proofing, and anti-slip properties.
一般的な傾向として、塗工量が多くなると防温性及びア
ンチスリップ性は高くなり、一方塗工量を少なくすれば
透湿性は高くなる。As a general tendency, the larger the coating amount, the higher the heat protection and anti-slip properties, while the smaller the coating amount, the higher the moisture permeability.
又、本発明におけるシート状繊維基台としては、例えば
木材パルプ、レーヨン、木綿などのセルロース繊維や、
ポリエチレン、ポリプロピレン、ポリエステル、ビニロ
ン、ポリエチレン−ポリプロピレン複合繊維、ポリエチ
レン−ポリエステル複合繊維、エチレン−酢ビ共重合体
、エチレン−エチルアクリレート共重合体等、−般に紙
や不織布等に用いられる繊維素材を乾式もしくは湿式法
によりシート化したものであればいずれでも良く、蒸気
等が通過できるだけの繊維間隙を有しているものが使用
可能であるが本発明がこれらの素材に限定されるもので
ない事は言うまでもない。Further, as the sheet-like fiber base in the present invention, for example, cellulose fibers such as wood pulp, rayon, cotton, etc.
Polyethylene, polypropylene, polyester, vinylon, polyethylene-polypropylene composite fiber, polyethylene-polyester composite fiber, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, etc. - Fiber materials commonly used for paper and nonwoven fabrics, etc. Any material formed into a sheet by a dry or wet method may be used, and any material having fiber gaps large enough to allow steam to pass through can be used, but the present invention is not limited to these materials. Needless to say.
また防水性を考慮して必要に応じてサイズ処理を施す事
も可能である。It is also possible to carry out size processing as necessary in consideration of waterproofness.
混合物の塗布方法としてはスクリーン印刷、グラビア印
刷、フレキソ印刷等の公知の印刷や、スプレー塗工、ロ
ール塗工等の公知の塗工法が利用される。As a method for applying the mixture, known printing methods such as screen printing, gravure printing, and flexo printing, and known coating methods such as spray coating and roll coating are used.
疎水性高分子エマルションと熱発泡性ポリマービーズの
混合物が塗工された複合体を乾燥し、次いで発泡させる
方法としては、周知の方法、例えば熱風、赤外線、電磁
放射線、スチーム等を用いる方法が挙げられる。Methods for drying and then foaming a composite coated with a mixture of a hydrophobic polymer emulsion and thermally foamable polymer beads include well-known methods, such as methods using hot air, infrared rays, electromagnetic radiation, steam, etc. It will be done.
第２図に示す如く、本発明における防漏シートに用いら
れる複合体４は、表面に突出し、複雑な凸凹形状を形成
する発泡された発泡性ポリマービーズ（マイクロカプセ
ル部）５とこれとシート状繊維基台７をつなぐガラス転
移温度Ｏ℃以下の疎水性高分子部６とからなる。As shown in FIG. 2, the composite 4 used in the leak-proof sheet of the present invention consists of foamed polymer beads (microcapsules) 5 that protrude from the surface and form a complex uneven shape, and a sheet-shaped It consists of a hydrophobic polymer portion 6 having a glass transition temperature of 0° C. or lower, which connects the fiber base 7.
本発明の防漏シートが透湿防漏性及びアンチスリップ性
を有する理由は必ずしも明確ではないが、透湿防漏性に
関しては、シート状繊維基台中の繊維が疎水性高分子中
を貫通する構造を多数保持しており、繊維と疎水性高分
子との界面においてミクロ層分離が生じて微細な孔が形
成されその結果好ましい透湿防漏性が発揮されると考え
られる。またアンチスリップ性に関しては、複雑凸凹構
造を有する発泡されたマイクロカプセル部は通常それと
接する基布に対して柔軟であるが為、基布に対する食い
つきが良く、尚且つマイクロカプセル部が柔軟なポリマ
ーで結合されているが為、マイクロカプセル部にがかる
ズレ応力をゴム的な弾性により吸収緩和するので高いズ
レ防止力を発揮するものと考えられる。The reason why the leak-proof sheet of the present invention has moisture-permeable leak-proof property and anti-slip property is not necessarily clear, but regarding moisture-permeable leak-proof property, the fibers in the sheet-like fiber base penetrate through the hydrophobic polymer. It is thought that microlayer separation occurs at the interface between the fibers and the hydrophobic polymer, forming fine pores, and as a result, favorable moisture permeability and leakproof properties are exhibited. Regarding anti-slip properties, foamed microcapsules with a complex uneven structure are usually flexible with respect to the base fabric in contact with them, so they have a good grip on the base fabric, and the microcapsules are made of a flexible polymer. Since it is bonded, the shearing stress applied to the microcapsule part is absorbed and alleviated by rubber-like elasticity, so it is thought that it exhibits a high shearing prevention force.
生理用ナプキンや使い捨ておむつ等の吸収性物品の防漏
性は、防漏シートの耐水圧（ＪＩＳ Ｌ−１０９２）が
５０ｃｍ以上あれば満足される（長時間着用の場合、耐
水圧１００ｃｍ以上の方が好ましい）。The leak-proof properties of absorbent articles such as sanitary napkins and disposable diapers are satisfied if the leak-proof sheet has a water pressure resistance (JIS L-1092) of 50 cm or more (for long-term wear, those with a water pressure resistance of 100 cm or more) is preferred).
又、透湿度（ＪＩＳ Ｚ−０２０８）の値は６００ ｇ
／ｍ２・２４ｈｒ以上であれば「むれ」や「かぶれ」に
対する防止効果が発現される。Also, the moisture permeability (JIS Z-0208) value is 600 g
/m2・24hr or more, the effect of preventing "stuffiness" and "rash" will be exhibited.
本発明の防漏シートは、上記の内容を満たす様に条件が
選ばれて製造され、体液不透過性、透湿性を有する。The leak-proof sheet of the present invention is manufactured under conditions selected to satisfy the above-mentioned contents, and has body fluid impermeability and moisture permeability.
本発明の吸収性物品は、上述の様に構成され、体液不透
過性で透湿性があり、尚かつアンチスリップ性を有する
ので、使用時「むれ」がなく且つ装着を容易にし、装着
時に股間の複雑な形状に正しくフィツトして高いズレ防
止効果を発揮するものである。The absorbent article of the present invention is configured as described above, and is impermeable to body fluids, moisture permeable, and has anti-slip properties, so that it does not get stuffy when used and is easy to wear. It fits correctly into the complex shape of the sheet and exhibits a high slip-preventing effect.
以下実施例により本発明を更に詳細に説明するが、本発
明はこれらの実施例のみに限定されるものではない。The present invention will be explained in more detail with reference to Examples below, but the present invention is not limited to these Examples.
尚、透湿度に関してはＪＩＳ Ｚ−０２０８、また耐水
圧に関してはＪＩＳ Ｌ−１０９２に準じて測定を行な
い、ズレ防止力に関しては次の様にして測定を行った。The moisture permeability was measured according to JIS Z-0208, the water pressure resistance was measured according to JIS L-1092, and the anti-slip force was measured as follows.
ス±」Ｕ比ガ
第３図に示す如く、可動式女性腰部モデル８に第４図の
様に試験サンプル１０を装着させ、ショーツをはかせた
後、５０ｍ／ｍｉｎに相当する速度で１０分間歩行運動
させ、試験サンプル１０の位置と装着時の位置を測定し
、このズした距離を乾燥時のズレ防止力とした。As shown in Figure 3, the test sample 10 was attached to the movable female waist model 8 as shown in Figure 4, and the shorts were put on, and then walked for 10 minutes at a speed equivalent to 50 m/min. The test sample 10 was moved, and the position of the test sample 10 and the position when it was worn were measured, and this shift distance was taken as the shift prevention force during drying.
また５ｇの疑似血液を装着状態で滴下用チューブ９によ
り試験サンプル１０に吸収させた後、同速度で１０分間
歩行運動をさせた時のズレを同方法で測定し吸収時のズ
レ防止力とした。In addition, after absorbing 5 g of simulated blood into the test sample 10 using the dripping tube 9, the displacement was measured using the same method when walking at the same speed for 10 minutes, and the displacement prevention force during absorption was determined. .
試験サンプルは第１図（１））の構成で行い、いずれも
吸収層２としては綿状パルプ２．０ｇ、吸収紙１．２ｇ
、高吸収ポリマー０．３ｇを用いた。又、表面シート１
としては２０ｇ／ｍ”のポリオレフィン系繊維（ポリエ
チレン−ポリプロピレン複合繊維／ポリエステルの重量
比３０／７０のもの）を用いた。The test samples were made with the configuration shown in Figure 1 (1)), and in each case, the absorbent layer 2 was 2.0 g of cotton-like pulp and 1.2 g of absorbent paper.
, 0.3 g of superabsorbent polymer was used. Also, top sheet 1
A 20 g/m'' polyolefin fiber (polyethylene-polypropylene composite fiber/polyester weight ratio of 30/70) was used.
実施例−１
自己架橋性アクリルエマルションＡＥ −５１６（日本
合成ゴム■製、固形分４５％、ガラス転移温度４８℃）
１７８０ｇにマツモトマイクロスフェア−Ｆ−３０を
２８０ｇ、増粘剤としてカルボキシメチルセルロース（
ＣＭＣ）を１６．５ ｇ及び水を１２７０ｇ加え、ホモ
ミキサーにて１時間混合し、混合物を得た。Example-1 Self-crosslinking acrylic emulsion AE-516 (manufactured by Japan Synthetic Rubber, solid content 45%, glass transition temperature 48°C)
280g of Matsumoto Microsphere-F-30 was added to 1780g, and carboxymethylcellulose (
16.5 g of CMC) and 1270 g of water were added and mixed for 1 hour using a homomixer to obtain a mixture.
グラビア印刷機（平野金属■製、グラビアロール、ベタ
板格子４０メツシユ）を用い、固形分が８ ｇ／ｍ”と
なる様にワックス系サイズ剤処理紙（パルプ１００％、
坪ｆｆ１２５ｇ／ｍＪ上に印刷した。Using a gravure printing machine (manufactured by Hirano Metal, gravure roll, 40 mesh solid plate grid), wax-based sizing agent-treated paper (100% pulp,
Printed on tsubo ff125g/mJ.
印刷後、６０℃の熱風循環式乾燥炉にて、予備乾燥の後
、１１０”Ｃの熱風循環式乾燥炉にて加熱処理を行い、
透湿性アンチスリップシートを得た。After printing, pre-dry in a hot air circulation drying oven at 60°C, then heat treatment in a hot air circulation drying oven at 110"C.
A moisture permeable anti-slip sheet was obtained.
これを第１図（ｂｌの如く構成する事により本発明品を
得た。A product of the present invention was obtained by constructing this as shown in FIG.
実施例−２
熱発泡性ポリマービーズとしてマツモトマイクロスフェ
ア−Ｆ−３０を用い、シート状繊維基台、ガラス転移温
度Ｏ℃以下の疎水性高分子の種類を表−１の如く種々変
化させ実施例１と同様に本発明品を得た。Example 2 Using Matsumoto Microspheres-F-30 as thermally foamable polymer beads, the sheet-like fiber base and the type of hydrophobic polymer with a glass transition temperature of 0°C or less were varied as shown in Table 1. A product of the present invention was obtained in the same manner as in Example 1.
実施例１及び２で得られた吸収性物品の透湿性、防漏性
及びズレ防止力を評価し、その結果を表−１に示した。The absorbent articles obtained in Examples 1 and 2 were evaluated for their moisture permeability, leak-proofing properties, and anti-slip ability, and the results are shown in Table 1.
尚、比較品として生理用ナプキンや使い捨ておむつ等の
吸収性物品に使用されているポリラミ防水紙及びポリエ
チレンシートについて同様に透湿性、防漏性及びズレ防
止力を評価し、その結果を表−１に示した。In addition, as comparative products, we similarly evaluated the moisture permeability, leak-proofing properties, and anti-slip properties of polylaminated waterproof paper and polyethylene sheets used in absorbent articles such as sanitary napkins and disposable diapers, and the results are shown in Table 1. It was shown to.
表−１より本発明品が高い透湿、防漏性及びズレ防止力
を有する事は明らかである。From Table 1, it is clear that the products of the present invention have high moisture permeability, leakproof properties, and anti-slip properties.
第１図は本発明の吸収性物品の種々、実施態様を示す横
断面図であり、第２図はシート状繊維基台とガラス転移
温度が０℃以下の疎水性高分子と発泡された発泡性ポリ
マービーズとからなる本発明に係わる複合体の断面拡大
図、第３図は可動式女性腰部モデルの斜視図、第４図は
可動式女性腰部モデルに試験片を装着した状態を示す斜
視図である。
１：液透過性表面シート
２：吸収層
３：液不透過性防漏シート
４：シート状繊維基台とガラス転移温度Ｑ ”Ｃ以下の
疎水性高分子と発泡された発泡性ポリマービーズとから
なる複合体
５：発泡性ポリマービーズ
６：ガラス転移温度が０℃以下の疎水性高分子７：シー
ト状繊維基台
８：可動式女性腰部モデル
９：液注入チューブ
１０：試験サンプルFIG. 1 is a cross-sectional view showing various embodiments of the absorbent article of the present invention, and FIG. 2 shows a sheet-like fiber base, a hydrophobic polymer having a glass transition temperature of 0° C. or less, and foamed foam. FIG. 3 is a perspective view of a movable female waist model, and FIG. 4 is a perspective view showing a state in which a test piece is attached to the movable female waist model. It is. 1: Liquid-permeable surface sheet 2: Absorbent layer 3: Liquid-impermeable leak-proof sheet 4: Made of a sheet-like fiber base, a hydrophobic polymer with a glass transition temperature of Q"C or lower, and foamed foamed polymer beads. Composite 5: Expandable polymer beads 6: Hydrophobic polymer with a glass transition temperature of 0° C. or lower 7: Sheet-like fiber base 8: Movable female waist model 9: Liquid injection tube 10: Test sample
Claims (2)
及び両シートの間に配置された吸収層を有する吸収性物
品において、防漏シートが、シート状繊維基台とガラス
転移温度が０℃以下の疎水性高分子と発泡された発泡性
ポリマービーズとからなる複合体であり、シート状繊維
基台の少なくとも片面が疎水性高分子により被覆され、
且つ発泡性ポリマービーズは疎水性高分子によりシート
状繊維基台上に固定されていることを特徴とする吸収性
物品。1. In an absorbent article having a liquid-permeable top sheet, a liquid-impermeable leak-proof sheet, and an absorbent layer disposed between both sheets, the leak-proof sheet has a glass transition temperature of 0°C with respect to the sheet-like fiber base. A composite consisting of the following hydrophobic polymer and foamed foamed polymer beads, in which at least one side of a sheet-like fiber base is coated with the hydrophobic polymer,
An absorbent article characterized in that the expandable polymer beads are fixed on a sheet-like fiber base by a hydrophobic polymer.
る特許請求の範囲第１項記載の吸収性物品。2. The absorbent article according to claim 1, wherein the hydrophobic polymer permeates into the sheet-like fiber base.
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61263543A JPS63117754A (en) | 1986-11-05 | 1986-11-05 | Absorbable article |
| MYPI87001566A MY100464A (en) | 1986-09-17 | 1987-09-05 | Absorbent article. |
| ES87113041T ES2021659B3 (en) | 1986-09-17 | 1987-09-07 | ABSORBING ARTICLE. |
| DE8787113041T DE3770226D1 (en) | 1986-09-17 | 1987-09-07 | ABSORBENT ARTICLE. |
| EP19870113041 EP0260566B1 (en) | 1986-09-17 | 1987-09-07 | Absorbent article |
| US07/094,908 US4850991A (en) | 1986-09-17 | 1987-09-10 | Absorbent article |
| KR1019870010169A KR910000853B1 (en) | 1986-09-17 | 1987-09-14 | Absorbent article |
| PH35823A PH25007A (en) | 1986-09-17 | 1987-09-15 | Absorbent article |
| CA 546996 CA1299356C (en) | 1986-09-17 | 1987-09-16 | Absorbent article |
| CN87106372A CN1013342B (en) | 1986-09-17 | 1987-09-17 | Absorbent article |
| SG122192A SG122192G (en) | 1986-09-17 | 1992-12-01 | Absorbent article |
| HK16693A HK16693A (en) | 1986-09-17 | 1993-03-04 | Absorbent article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61263543A JPS63117754A (en) | 1986-11-05 | 1986-11-05 | Absorbable article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63117754A true JPS63117754A (en) | 1988-05-21 |
| JPH0245899B2 JPH0245899B2 (en) | 1990-10-12 |
Family
ID=17390999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61263543A Granted JPS63117754A (en) | 1986-09-17 | 1986-11-05 | Absorbable article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63117754A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5232970A (en) * | 1990-08-31 | 1993-08-03 | The Dow Chemical Company | Ceramic-filled thermally-conductive-composites containing fusible semi-crystalline polyamide and/or polybenzocyclobutenes for use in microelectronic applications |
| JP2008142206A (en) * | 2006-12-08 | 2008-06-26 | Kao Corp | Absorbent article |
| JP2010000282A (en) * | 2008-06-23 | 2010-01-07 | Oji Nepia Co Ltd | Disposable diaper |
| JP4927725B2 (en) * | 2004-06-23 | 2012-05-09 | デュボアス・リミテッド | Beverage container |
-
1986
- 1986-11-05 JP JP61263543A patent/JPS63117754A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5232970A (en) * | 1990-08-31 | 1993-08-03 | The Dow Chemical Company | Ceramic-filled thermally-conductive-composites containing fusible semi-crystalline polyamide and/or polybenzocyclobutenes for use in microelectronic applications |
| JP4927725B2 (en) * | 2004-06-23 | 2012-05-09 | デュボアス・リミテッド | Beverage container |
| JP2008142206A (en) * | 2006-12-08 | 2008-06-26 | Kao Corp | Absorbent article |
| JP2010000282A (en) * | 2008-06-23 | 2010-01-07 | Oji Nepia Co Ltd | Disposable diaper |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0245899B2 (en) | 1990-10-12 |
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