JP3805719B2

JP3805719B2 - Hygiene products

Info

Publication number: JP3805719B2
Application number: JP2002162223A
Authority: JP
Inventors: 伊藤　　博
Original assignee: Daiki Co Ltd
Current assignee: Daiki Co Ltd
Priority date: 1997-12-31
Filing date: 2002-06-03
Publication date: 2006-08-09
Anticipated expiration: 2018-06-03
Also published as: JP2003094544A

Description

【０００１】
【産業上の利用分野】
本発明は、衛生用品、即ち、人又は動物用の衛生用品に関し、特に、ラミネート紙廃材、プラスチック製有機物廃材、紙廃材、例えば、紙おむつ廃材粉砕物、尿パッド廃材粉砕物、生理用ナプキン廃材粉砕物、動物用紙おむつ廃材粉砕物、動物用シーツ廃材粉砕物、ラミネート紙廃材粉砕物、紙ナプキン若しくはプラスチックが被着されている紙の廃材粉砕物等の廃材を利用した衛生用品、即ち、人用のおむつ、生理用ナプキン、尿パッド又は動物用おむつ若しくは動物用シーツ等の人又は動物用の衛生用品に関する。
また、本発明は、特に、就寝時、休養時及び排泄時に使用する使い捨て用の人用の紙おむつ、生理用紙ナプキン若しくは尿パッド又は愛玩動物用のおむつ若しくは動物用シーツ等の衛生用品に関する。
【０００２】
【従来の技術】
従来の使い捨て用の例えば人用のおむつや動物用シーツ等の人又は動物用の衛生用品は、上面を形成する透水性の多孔質層部と、下面を形成するプラスチック製の不透水性膜層部とを備え、前記透水性の多孔質層部の下面に接して配置される吸水性の上部紙層部と、前記不透水性膜層部の上面に接して配置される吸水性の下部紙層部を備え、前記吸水性の上部紙層部と、前記吸水性の下部紙層部との間に、高吸水性樹脂及びフラツフ等の紙粉を含む吸水性層部を備えて形成されている。
【０００３】
【発明が解決しようとする課題】
このように、従来の使い捨て用の紙おむつ、生理用パッド、尿パッド又は動物用シーツ等の衛生用品の吸水性層部には、高吸水性樹脂と共に紙粉が使用されている。この従来の衛生用品においては、吸水性層部に使用される紙粉として、パルプ粉砕物が使用されているが、最近では、パルプ粉砕物が入手困難であり、しかも比較的高価であり、バルプ粉砕物の使用が困難となり、問題とされている。そこで、最近の使い捨て用の衛生用品は、吸水性層部のパルプ粉砕物の使用量を減少させ、そのパルプ粉砕物の減少に伴う吸水量の減少を補うように、吸水性樹脂を増加させて、吸水性層部を形成している。しかし、このように、パルプ粉砕物を減少させ、吸水性樹脂を増加させた吸水性層部を有する使い捨て用の衛生用品は、パルプ粉砕物の使用量を少なくするために、従来の衛生用品に比して、比較的薄く形成され、弾力性に乏しくなり、比較的堅い感じを与えるために、問題とされている。
【０００４】
一方、ラミネート紙は、牛乳パック、紙製の皿、紙製の茶碗、紙コップ等の食器類に使用されるが、成形するためのラミネート紙の裁断の際には、ラミネート紙の裁断屑が大量に発生するが、プラスチックフィルムを原料に使用しているために、燃焼熱が高く、その処理が問題とされている。
また紙おむつ、生理用ナプキン、尿パッド、動物用紙おむつ及び動物用シーツ等の衛生用品の製造時においても検査不良の紙おむつ等の衛生用品の廃品が大量に発生し、またその裁断工程においても、例えば、紙おむつ裁断屑や生理用ナプキン裁断屑等の衛生用品の裁断屑が発生し、その処理が問題とされている。
本発明は、従来の紙おむつ、生理用ナプキン、尿パッド、や動物用シーツの原材料及び弾力性に係る問題点並びに、事務用紙廃材、ラミネート紙廃材、生理用ナプキン廃材、失禁パッド廃材、尿パッド廃材及び紙オムツ廃材等の衛生用品廃材の処分の問題点を一挙に解決することを目的としている。
【０００５】
【課題を解決するための手段】
本発明は、人用の紙おむつや又は動物用シーツの原材料として、ラミネート紙廃材、紙おむつ廃材、生理用ナプキン廃材、尿パッド廃材等のプラスチックフィルム及び紙料を含有する廃材材料を使用して、比較的弾力性及び吸水性を有する衛生用品、即ち、人用の紙おむつ、生理用ナプキン若しくは尿パッド又は動物用おむつ又は動物用シーツ等を提供することを目的としている。
【０００６】
即ち、本発明は、上面を形成する透水性の多孔質層部と、下面を形成するプラスチック製の不透水性膜層部と、前記多孔質層部の下面に接して位置する吸水性の紙層部を備える衛生用品において、紙層部と不透水性膜層部の間に、プラスチック廃材粉、紙廃材粉及び吸水性樹脂粉を含む吸水性層部を備えており、該吸水性層部のプラスチック廃材粉及び紙廃材粉の少なくとも一部には、ラミネート紙廃材粉砕物若しくはプラスチックが被着されている紙の廃材粉砕物、紙おむつ廃材粉砕物、尿パッド廃材粉砕物、生理用ナプキン廃材粉砕物、動物用紙おむつ廃材粉砕物又は動物用シーツ廃材粉砕物の中の二種類以上の廃材粉砕物の混合物が含有されることを特徴とする衛生用品にあり、また、本発明は、上面を形成する透水性の多孔質層部と、下面を形成するプラスチック製の不透水性膜層部と、前記多孔質層部の下面に接して位置する吸水性の上部紙層部と、前記不透水性膜層部の上面に接して配置される吸水性の下部紙層部を備える衛生用品において、上部紙層部と下部紙層部の間に、プラスチック廃材粉、紙廃材粉及び吸水性樹脂粉を含む吸水性層部を備えており、該吸水性層部のプラスチック廃材粉及び紙廃材粉の少なくとも一部には、ラミネート紙廃材粉砕物若しくはプラスチックが被着されている紙の廃材粉砕物と、紙おむつ廃材粉砕物、尿パッド廃材粉砕物、生理用ナプキン廃材粉砕物、動物用紙おむつ廃材粉砕物又は動物用シーツ廃材粉砕物の中の二種類以上の廃材粉砕物の混合物が含有されることを特徴とする衛生用品にあり、さらに、本発明は、上面を形成する透水性の多孔質層部と、下面を形成するプラスチック製の不透水性膜層部と、前記多孔質層部の下面に接して位置する吸水性の上部紙層部と、前記不透水性膜層部の上面に接して配置される吸水性の下部紙層部を備える衛生用品において、上部紙層部と下部紙層部の間に、中間吸水性紙層部により上層部及び下層部に仕切られて形成されているプラスチック廃材粉、紙廃材粉及び吸水性樹脂粉を含む吸水性層部を備えており、該吸水性層部のプラスチック廃材粉及び紙廃材粉の少なくとも一部には、ラミネート紙廃材粉砕物若しくはプラスチックが被着されている紙の廃材粉砕物、紙おむつ廃材粉砕物、尿パッド廃材粉砕物、生理用ナプキン廃材粉砕物、動物用紙おむつ廃材粉砕物又は動物用シーツ廃材粉砕物の中の二種類以上の廃材粉砕物の混合物が含有されることを特徴とする衛生用品にある。
【０００７】
【発明の実施の形態】
本発明において、衛生用品は、紙おむつ、尿パッド、生理用ナプキン、動物用紙おむつ及び動物用シーツを意味する。本発明の衛生用品は、従来の紙おむつや動物用のシーツ等の衛生用品と同様に、排泄用として使用されるものであるが、その他に、休養及び就寝用として使用されるものである。
本発明において、衛生用品は、その上面は、透水性の多孔質層部、例えばポリプロピレン樹脂、ポリエチレン樹脂、ナイロン樹脂、ビニロン樹脂等のプラスチック繊維製又はレーヨン繊維製の不織布層部又はポリエチレン樹脂、ポリプロピレン樹脂、塩化ビニル樹脂等のプラスチック製の多孔膜で形成することができ、下面は、ポリエチレン樹脂、ポリプロピレン樹脂等のプラスチック製の不透水性膜層部で形成することができる。
【０００８】
本発明において、吸水性の紙層部は、一方で、前記多孔質層部の下面に接して上部紙層部として設け、さらに他方で、前記不透水性膜層部の上面に接して下部紙層部として設けることができる。このように、吸水性紙層部を上下に設けると、上部紙層部と下部紙層部の間に吸水性層部が挟まれるように設けることができるので、上部紙層部と下部紙層部の間に吸水性層部を挟んで、エンボス処理等の処理ができるので、上部紙層部と下部紙層部の間に、吸水性層部を固定できるので好ましい。しかし、本発明においては、前記多孔質層部の下のみに、その下面に接して吸水性の紙層部を設けることができる。また、吸水性層部は、中間吸水性紙層部で仕切って、上部吸水性層部及び下部吸水性層部に二分して形成することができる。
何れの場合においても、この吸水性の紙層部は、吸水紙又はクレープ紙で形成されるのが、良好な吸水性を確保できるので好ましい。
本発明において使用される廃材の粉砕物の紙おむつ廃材粉の粉砕物、尿パッド廃材の粉砕物、生理用ナプキン廃材の粉砕物、動物用紙おむつ廃材の粉砕物、動物用シーツ廃材の粉砕物、ラミネート紙廃材粉砕物、紙ナプキン廃材粉砕物、及びプラスチックが被着されている紙の裁断屑等の廃材の粉砕物は、粉砕等により、５ｍｍ以下の粒度、好ましくは３ｍｍ以下の粒度に形成するのが好ましい。
【０００９】
本発明においては、前記吸水性の紙層部間に、又は前記吸水性の紙層部に接して、プラスチック廃材粉、紙廃材粉及び吸水性樹脂の混合物を含む吸水性層部を設けることができる。この吸水性層部に使用されるプラスチック廃材粉としては、ポリエチレンフィルム廃材粉砕物、ポリプロピレンフィルム廃材粉砕物、ゴム材料廃材粉砕物等があり、紙廃材粉としては、パンチ屑及び／又は帳簿用紙の裁断屑等の屑紙の粉砕物が紙廃材粉として使用できるが、紙おむつ廃材破砕物、生理用ナプキン廃材粉砕物、尿パッド廃材粉砕物、動物用紙おむつ廃材粉砕物、動物用シーツ廃材粉砕物又は紙ナプキン廃材破砕物、或いはこれらの廃材粉砕物の二以上の廃材粉砕混合物も同様に使用することができ、また前記廃材粉砕物又は前記廃材粉砕混合物を分級して得られる分級産物の中、分級処理前の廃材粉砕物又は廃材粉砕混合物に比して紙材料の含有率が大きい分級処理産物も同様に使用することができる。
【００１０】
本発明において、吸水性層部は、プラスチック廃材粉、紙廃材粉及び吸水性樹脂粉で形成される。本発明において、前記プラスチック廃材粉、紙廃材粉及び吸水性樹脂粉を含む吸水性層部の少なくとも一部には、紙おむつ廃材粉の粉砕物、尿パッド廃材の粉砕物、生理用ナプキン廃材の粉砕物、動物用紙おむつ廃材の粉砕物又は動物用シーツ廃材の粉砕物或いはこれら廃材の粉砕物の中の二種類以上の廃材の粉砕混合物を使用することができるすることができる。
本発明において使用されるプラスチック材料を含む廃材の粉砕物の紙おむつ廃材粉の粉砕物、尿パッド廃材の粉砕物、生理用ナプキン廃材の粉砕物、動物用紙おむつ廃材の粉砕物、動物用シーツ廃材の粉砕物、ラミネート紙廃材粉砕物、及びプラスチック又はゴムが被着されている紙の裁断屑等の廃材の粉砕物は、粉砕等により、５ｍｍ以下の粒度、好ましくは３ｍｍ以下の粒度に形成すると、プラスチック材料の保水性が向上する上に、プラスチック材料及びゴム材料の存在が略感知されないようになり、感触も向上するので好ましい。
【００１１】
本発明において、吸水性層部のプラスチック廃材粉砕物の少なくとも一部には、紙おむつ廃材の粉砕物、尿パッド廃材の粉砕物、生理用ナプキン廃材の粉砕物、動物用紙おむつ廃材の粉砕物、動物用シーツ廃材の粉砕物、ラミネート紙廃材粉砕物若しくはプラスチックが被着されている紙の裁断屑等の廃材の粉砕物又はこれら廃材の粉砕物の二種類以上の廃材の粉砕混合物、或いは前記廃材の粉砕物又は廃材の粉砕混合物の分級処理産物の中、分級処理前の前記廃材の粉砕物又は廃材粉砕混合物に比してプラスチック材料の含有率が大きい分級処理産物を使用することができる。
【００１２】
本発明において、プラスチック廃材粉、紙廃材粉及び吸水性樹脂廃材粉を含む吸水性層部における紙廃材粉及び吸水性樹脂廃材粉の少なくとも一部には、紙おむつ廃材粉砕物、尿パッド廃材粉砕物、生理用ナプキン廃材粉砕物、動物用紙おむつ廃材粉砕物若しくは動物用シーツ廃材粉砕物又はこれら廃材粉砕物の二種類以上の廃材粉砕混合物、或いは前記廃材粉砕物又は廃材粉砕混合物の分級処理産物の中、分級処理前の廃材粉砕物に比して紙材料及び吸水性樹脂の含有率が大きい分級処理産物を使用することができる。
【００１３】
本発明において、プラスチック廃材粉、紙廃材粉及び吸水性樹脂粉を含む吸水性層部の紙廃材粉の少なくとも一部には、紙おむつ廃材粉砕物、尿パッド廃材粉砕物、生理用ナプキン廃材粉砕物、動物用紙おむつ廃材粉砕物、動物用シーツ廃材粉砕物、ラミネート紙廃材粉砕物、紙ナプキン廃材粉砕物若しくはプラスチックが被着されている紙廃材粉砕物又はこれら廃材粉砕物の二種類以上の廃材粉砕混合物、或いは前記廃材粉砕物又は廃材粉砕混合物の分級処理産物の中、分級処理前の廃材粉砕物又は廃材粉砕混合物に比して、プラスチック材料、紙材料又は吸水性樹脂の含有率が大きい分級処理産物を使用することができる。
【００１４】
本発明において、プラスチック廃材粉、紙廃材粉及び吸水性樹脂粉を含む吸水性層部の吸水性樹脂粉の少なくとも一部には、紙おむつ廃材粉砕物、尿パッド廃材粉砕物、若しくは生理用ナプキン廃材粉砕物、又はこれら廃材粉砕物の二種類以上の廃材粉砕混合物、或いは前記廃材粉砕物又は廃材粉砕混合物の分級処理産物の中、分級処理前の廃材粉砕物又は廃材粉砕混合物に比して吸水性樹脂粉の含有率が大きい分級処理産物を使用することができる。
【００１５】
本発明おいて、前記吸水性樹脂粉として、吸水性樹脂及び高吸水性樹脂を使用することができる。また吸水性樹脂として、疎水性繊維に吸水性を付与した、所謂、吸水性繊維を使用することができる。この場合、吸水性繊維は、そのまま成形して、又は吸水性繊維成形体又は吸水性繊維成形体粉砕物として使用することができる。
吸水性繊維を使用する場合は、吸水性繊維は、吸水性樹脂に代えて使用することができるが、上部紙層部及び下部紙層部間に吸水性繊維成形体及び／又は吸水性繊維成形体粉砕物を配置して吸水性層部を形成することができる。吸水性繊維成形体は、布帛又は不織布に形成して、上部紙層部及び下部紙層部間に配置又は固定して形成することができる。
【００１６】
本発明において、前記吸水性樹脂粉の少なくとも一部には、吸水性樹脂（高吸水性樹脂を含む）、吸水性繊維（高吸水性繊維を含む）、吸水性繊維成形体又は吸水性繊維成形体粉砕物、或いはこれらの二種類以上の吸水性材料混合物と、紙おむつ廃材粉砕物、尿パッド廃材粉砕物、若しくは生理用ナプキン廃材粉砕物、又はこれら廃材粉砕物の二種類以上の廃材粉砕混合物、或いは前記廃材粉砕物又は廃材粉砕混合物の分級処理産物の中、分級処理前の廃材粉砕物又は廃材粉砕混合物に比して吸水性樹脂粉の含有率が大きい分級処理産物との混合物を使用することができる。
【００１７】
本発明において、前記吸水性樹脂粉の少なくとも一部が、紙おむつ廃材粉砕物、尿パッド廃材粉砕物、生理用ナプキン廃材粉砕物、動物用紙おむつ廃材粉砕物若しくは動物用シーツ廃材粉砕物又はこれら廃材粉砕物の二種類以上の廃材粉砕混合物、或いは前記廃材粉砕物又は廃材粉砕混合物の分級処理産物の中、分級処理前の廃材粉砕物又は廃材粉砕混合物に比して吸水性樹脂粉の含有率が大きい分級処理産物である場合、吸水性樹脂又は吸水性繊維は、粉砕物プラスチック廃材粉及び／又は紙廃材粉とは別個に紙層部上に供給するのが、吸水性樹脂の吸水によりホッパー等の供給口が詰まるのを防止することができるので好ましい。
【００１８】
本発明において、前記吸水性樹脂粉として、紙おむつ廃材粉砕物、尿パッド廃材粉砕物、生理用ナプキン廃材粉砕物、動物用紙おむつ廃材粉砕物、動物用シーツ廃材粉砕物若しくはラミネート紙廃材粉砕物又はこれら廃材粉砕物の二種類以上の廃材粉砕混合物、或いは前記廃材粉砕物又は廃材粉砕混合物の分級処理産物の中、分級処理前の廃材粉砕物又は廃材粉砕混合物に比して吸水性樹脂粉の含有率が大きい分級処理産物を使用する場合には、プラスチック廃材粉砕物及び紙廃材粉砕物としては、ラミネート紙廃材の粉砕物、紙おむつ廃材粉砕物、尿パッド廃材粉砕物、生理用ナプキン廃材粉砕物、動物用紙おむつ廃材粉砕物若しくは動物用シーツ廃材粉砕物又はこれら二以上の廃材粉砕混合物、或いは前記廃材粉砕物又は廃材粉砕混合物の分級処理産物の中、分級処理前の廃材粉砕物又は廃材粉砕混合物に比してプラスチック材料及び紙材料の含有率が大きい分級処理産物を使用することができる。
【００１９】
本発明において、プラスチック廃材及び紙廃材の粉砕粉の混合物としては、牛乳パック、紙製の皿、紙製の茶碗、紙コップ等の食器類などのラミネート紙製品や紙ナプキン等の製造時の裁断屑を粉砕した粉砕粉が使用でき、また、プラスチック材料及び紙材料を含む紙おむつ廃材粉砕物、尿パッド廃材粉砕物、生理用ナプキン廃材粉砕物、動物用紙おむつ廃材粉砕物若しくは動物用シーツ粉砕物或いはこれらの粉砕混合物を使用することができ、或いはこれら粉砕物又は粉砕混合物の分級処理産物の中、分級処理前の廃材粉砕物又は廃材粉砕混合物に比してプラスチック材料及び紙材料の含有率が大きい分級処理産物を使用することができる。紙おむつ廃材、尿パッド廃材、又は生理用ナプキン廃材は、プラスチック材料、紙材料及び吸水性樹脂を含んでいるので、プラスチック廃材、紙廃材及び吸水性樹脂廃材を含む粉砕混合物として、紙おむつ粉砕物及び生理用ナプキン粉砕物の製造時に発生する紙粉、所謂集塵ロスが使用できる。
【００２０】
本発明において、紙廃材粉及び吸水性樹脂粉の混合物は、プラスチック廃材粉層の間に挟持され、その表裏両面に吸水紙が設けられている所謂ポリマーシートの裁断屑等のポリマーシート廃材粉砕粉を使用することができる。ポリマーシート廃材を使用する場合には、多孔質層部の下面に接する吸水性の紙層部及び不透水性膜層部上面に接する吸水性の紙層部を省略することができる。本発明において、吸水性樹脂廃材に含まれる高吸水性樹脂又は吸水性樹脂は、吸水性の高いものを使用すると、使用量を少なくできるので好ましい。
【００２１】
本発明において吸水性樹脂は、高吸水性樹脂及び高級水性樹脂に比して吸水能力が低い吸水性樹脂を意味する。本発明において、同様に、吸水性繊維は、高吸水性繊維及び高級水性繊維に比して吸水能力が低い吸水性樹脂を意味する。
本発明において、高吸水性樹脂は、紙おむつには、２５乃至４０重量％、好ましくは、３０乃至３５重量％含有され、特に３３重量％含有されるが、動物用シーツには５乃至１５重量％、好ましくは、７乃至１２重量％含有され、特に１０重量％含有されるので、例えば、紙おむつ廃材粉砕物を使用して、動物用シーツを製造するときは、高吸水性樹脂の量が多すぎることとなるので、高吸水性樹脂は、紙おむつ廃材粉砕物から分級等の分離手段により少なくとも一部分離され、一部製品化されるが、逆に、動物用シーツ廃材粉砕物を原料として紙おむつを製造する場合には、高吸水性樹脂の量が不足することとなるので、この不足する高吸水性樹脂の量を外部から添加することが必要となる。
【００２２】
本発明において、動物用シーツに吸水性を保持させるために、高吸水性樹脂が配合される。本発明において使用される高吸水性樹脂は、人工尿で自重の３０倍から１００倍程度の水を吸収しても、形を保持できる樹脂であるのが好ましい。このような高吸水性樹脂としては、例えば、ビニルエステルとエチレン系不飽和カルボン酸又はその誘導体との共重合体鹸化物、澱粉とアクリル酸のグラフト重合体、ポリアクリル酸の架橋物、ビニルアルコールとアクリル酸の共重合体、ポリアクリロニトリルの部分加水分解物、カルボキシメチルセルロースの架橋物、ポリエチレングリコールの架橋物、キトサンの塩又はプルランのゲルなどがある。これらは、吸水性材料粉に単独で又はこれら２種以上を混合して使用される。
【００２３】
本発明においては、高吸水性樹脂は、例えば紙おむつ廃材から回収された高吸水性樹脂含有物を使用することができる。このような再生高吸水性樹脂は、人工尿で吸水倍率が１０〜３０ｇ／ｇとその吸水性能は乏しいが、動物用シーツではこの程度の吸水効果で十分使用できることがわかった。使用する高吸水性樹脂の粒度は、５０乃至５００μｍであり
【００２４】
廃材の紙粉に、木粉及びパンチ屑の粉砕物を加える場合には、木粉及びパンチ屑の粉砕物の量は、前記紙粉の３〜２０重量％以下、好ましくは３〜１０重量％以下である。
本発明において、プラスチック廃材、紙材料廃材及び吸水性材料廃材は、夫々、その吸水性及び保水性を増すために、５ｍｍ以下、好ましくは３ｍｍの粒度に粉砕されて使用される。
【００２５】
【作用】
本発明において、シーツは、上面を形成する透水性の多孔質層部と、下面を形成するプラスチック製の不透水性膜層部と、前記多孔質層部の下面に接して位置する吸水性の紙層部と、前記吸水性の紙層部の下面に接して位置してプラスチック廃材粉、紙廃材粉及び吸水性樹脂の混合物を含む混合層部を備えており、前記不透水性膜層部は、前記混合層部の下方に位置して配置されているので、人又は動物の排泄した尿の吸収が良く、また保水性が良く、さらに弾力性があり、寝具として良好である。
【００２６】
また、本発明において、シーツは、上面を形成する透水性の多孔質層部と、下面を形成するプラスチック製の不透水性膜層部と、前記多孔質層部の下面に接して位置する吸水性の上部紙層部と、前記不透水性膜層部の上面に接して配置される吸水性の下部紙層部を備える衛生用品において、上部紙層部と下部紙層部の間に、プラスチック廃材粉、紙廃材粉及び吸水性樹脂粉を含む吸水性層部を備えるので、人又は動物の排泄した尿の吸収が良く、また保水性が良く、さらに弾力性があり、寝具として良好である。
【００２７】
ポリエチレンフィルム、ポリプロピレンフィルム及び／又はゴム材料等のプラスチック材料は、燃焼熱が高く、燃焼炉を痛めて問題とされているが、本発明においては、プラスチックフィルムを、紙おむつ廃材、紙ナプキン廃材及びラミネート紙廃材に含有される紙料と混合してシーツとすることにより、プラスチックフィルムを含めた分シーツの燃焼熱を高めることができ、使用後にシーツに付着する尿及び汗等の水分により、燃焼熱が低下しても、プラスチックフィルムの混合により、使用後のシーツの燃焼不良を改善でき、プラスチックフィルム廃材の処理が容易となり、廃材処理費用を低くすることができる。
【００２８】
【実施例】
以下、本発明の実施の態様の例を説明するが、本発明は、以下の説明及び例示によって何等制限されるものではない。
図１は、本発明の一実施例の衛生用品の説明図である。図２は本発明の別の実施例の衛生用品の説明図である。図３は、図１及び図２に示した実施例と異なる本発明の一実施例の衛生用品の説明図である。図４は、本発明の衛生用品を製造する工程を示す概略の工程図である。図１乃至図４において対応する箇所には同一の符号が付されている。
【００２９】
図１において、衛生用品１は、底面部が不透水性膜層部２で形成され、該不透水性膜層部２の上に、下部吸水性紙層部３が形成され、該下部吸水性紙層部３の上に、高吸水性樹脂量の必要量が包含されている廃材粉砕粉により吸水性層部４が形成され、その上に上部吸水性紙層部５が配置されており、その上を覆って、透水性の多孔質層部６が形成されており、前記透水性の多孔質層部６の端部は、最下層の前記不透水性膜層部２の端部ととホットメルト接着等により接着又は接合されて衛生用品１が形成されている。
本例において、上部吸水性紙層部３、吸水性層部４及び下部吸水性紙層部５は、重ねられて、エンボス加工されて、シート状に一体化されている。
【００３０】
例１
本実施例は、図１に示す衛生用品１の構成を、人用の紙おむつに適用した事例である。図１において、６．１重量部のポリエチレンフィルムで不透水性膜層部２が設けられ、該不透水性膜層部２の上に、４．３重量部の吸水紙で下部吸水性紙層部３が設けられ、該下部吸水性紙層部３の上に、５０．６重量部の粒度３ｍｍ以下の紙おむつ粉砕粉３で吸水性層部４が形成され、その上に４．３重量部の吸水紙４で上部吸水性紙層部が設けられ、その上を、４．７重量部のポリプロピレン不織布５で覆って、透水性の多孔質層部６が形成されており、該ポリプロピレン不織布５の端部は、最下層の前記ポリエチレンフィルム２の端部とホットメルト接着剤を介してホットメルト接着されて、人用の紙おむつが形成されている。
本例において、上部吸水性紙層部、吸水性層部及び下部吸水性紙層部は、重ねられて、エンボス加工されて、シート状に一体化されている。本例において、本例の人用の紙おむつは、使用前の燃焼熱が、６５３１キロカロリー（ｋｃａｌ）／ｋｇであるが、人の一回の排尿量に相当する３００ｍｌの疑似尿で濡れた後のシーツの燃焼熱は７１７ｋｃａｌ／ｋｇであり、燃焼不良にはならない。
【００３１】
例２
本実施例は、図１に示す衛生用品１の構成を、動物用シーツに適用した事例である。図１において、３重量部のポリエチレンフィルムで不透水性膜層部２が設けられ、該不透水性膜層部２の上に、２．１重量部の吸水紙で下部吸水性紙層部３が設けられ、該下部吸水性紙層部３の上に、１７．６重量部の粒度３ｍｍ以下の紙おむつ粉砕粉３で吸水性層部４が形成され、その上に４．７重量部の吸水紙４で上部吸水性紙層部が設けられ、その上を、２．２重量部のポリプロピレン不織布５で覆って、透水性の多孔質層部６が形成され、該ポリプロピレン不織布５の端部は、最下層の前記ポリエチレンフィルム２の端部とホットメルト接着剤を介してホットメルト接着されて、動物用シーツが形成される。
本例においても、例１の場合と同様に、上部吸水性紙層部、吸水性層部及び下部吸水性紙層部は、重ねられて、エンボス加工されて、シート状に一体化されている。
本例の動物用シーツは、使用前の燃焼熱が、６４０８キロカロリー（ｋｃａｌ）／ｋｇであるが、子犬の五回の排尿量に相当する７５ｍｌの疑似尿で濡れた後のシーツの燃焼熱は１３５４ｋｃａｌ／ｋｇであり、燃焼不良にはならない。
【００３２】
例３
本実施例は、図１に示す衛生用品１の構成を、動物用シーツに適用した事例であるが、吸水性層部が上下面に吸水性紙が設けられている高吸水性繊維板で形成されている事例である。図１において、動物用シーツ１は、底部の不透水性膜層部２が３重量部のポリエチレンシートで形成されており、不透水性膜層部２の上に、上下面に吸水性紙層部４を備える不織布タイプの板状の高吸水性繊維（１５０ｇ／ｍ2）の２０．３重量部を配置して、吸水性層部３を形成する。この吸水性層部３の上に、２．２重量部のポリプロピレン不織布５を配置して、透水性の多孔質層部６が形成され、、該ポリプロピレン不織布５の端部は、最下層の前記ポリエチレンフィルム２の端部とホットメルト接着剤を介してホットメルト接着されて、動物用シーツが形成される。
本例における動物用シーツの使用前の燃焼熱は５５６０キロカロリー（ｋｃａｌ）／ｋｇであるが、子犬の五回の排尿量に相当する７５ｍｌの疑似尿で濡れた後のシーツの燃焼熱は９３３ｋｃａｌ／ｋｇであり、燃焼不良にはならない。
【００３３】
例４
本実施例は、図１に示す衛生用品１の構成を、動物用シーツに適用した事例である。図１において、３重量部のポリエチレンフィルムで、底部を形成する不透水性膜層部２が設けられ、該不透水性膜層部２の上に、２．１重量部の吸水紙で下部吸水性紙層部３が設けられ、該下部吸水性紙層部３の上に、１７．６重量部の粒度３ｍｍ以下の紙おむつ粉砕粉３で吸水性層部４が形成され、その上に該不透水性膜層部２の上に、１７．６重量部の粒度３ｍｍ以下の紙おむつ裁断屑の粉砕粉で吸水性層部４が形成され、その上に４．７重量部の吸水紙４で上部吸水性紙層部５が設けられ、その上を、２．８重量部のポリプロピレン不織布で覆って、透水性の多孔質層部６が形成されており、該ポリプロピレン不織布６の端部は、最下層の前記ポリエチレンフィルム２の端部とホットメルト接着剤を介してホットメルト接着されて、動物用シーツが形成されている。
本例の動物用シーツにおいて、使用前の燃焼熱は、６０９４キロカロリー（ｋｃａｌ）／ｋｇであるが、子犬の五回の排尿量に相当する７５ｍｌの疑似尿で濡れた後においても、燃焼熱は１８５２ｋｃａｌであり、本例の動物用シーツは燃焼不良にはならない。
【００３４】
図２において、衛生用品１は、図１に示した衛生用品１と吸水性層部の構造が相違するものである。本例の衛生用品１においては、底面部が不透水性膜層部２で形成され、該不透水性膜層部２の上に、下部吸水性紙層部３が形成され、該下部吸水性紙層部３の上に、高吸水性樹脂量が必要量より少ない廃材粉砕粉７及び高吸水性樹脂の不足する分を補う高吸水性樹脂粉８により吸水性層部４が形成され、その上に、上部吸水性紙層部４が配置され、その上を覆って、透水性の多孔質層部６が形成され、前記透水性の多孔質層部６の端部は、最下層の前記不透水性膜層部２の端部ととホットメルト接着等により接着又は接合されて、衛生用品１が形成されている。
本例において、上部吸水性紙層部３、吸水性層部４及び下部吸水性紙層部５は、重ねられて、エンボス加工されて、シート状に一体化されている。
【００３５】
例５
本実施例は、図２に示す衛生用品１の構成を、人用の紙おむつに適用した事例である。図２において、６．１重量部のポリエチレンフィルムで不透水性膜層部２が設けられ、該不透水性膜層部２の上に、２．１重量部の吸水紙で下部吸水性紙層部３が設けられ、該下部吸水性紙層部３の上に、高吸水性樹脂の含有量が２４重量％の粒度３ｍｍ以下の紙おむつ粉砕粉３の３４．１重量部が載置され、その上に１１．７重量部の高吸水性樹脂粉が供給されて、高吸水性樹脂含有量が３３重量％の吸水性層部４が形成され、該吸水性層部４の上に、９．５重量部の吸水紙４で上部吸水性紙層部が載置され、その上を、４．４重量部のポリプロピレン不織布５で覆って、透水性の多孔質層部６が形成され、該ポリプロピレン不織布５の端部は、最下層の前記ポリエチレンフィルム２の端部とホットメルト接着剤を介してホットメルト接着されて、人用の紙おむつ１が形成されている。
本例においても、前記例１乃至例３の場合と同様に、上部吸水性紙層部、吸水性層部及び下部吸水性紙層部は、重ねられて、エンボス加工されて、シート状に一体化されている。
本例の人用の紙おむつは、使用前の燃焼熱が、５５７７キロカロリー（ｋｃａｌ）／ｋｇであるが、人の一回の排尿量に相当する３００ｍｌの疑似尿で濡れた後のシーツの燃焼熱は５３６ｋｃａｌ／ｋｇであり、燃焼不良にはならない。
【００３６】
例６
本実施例は、図２に示す衛生用品１の構成を、動物用シーツに適用した事例である。図２において、３重量部のポリエチレンフィルムで不透水性膜層部２が設けられ、該不透水性膜層部２の上に、２．１重量部の吸水紙で下部吸水性紙層部３が設けられ、該下部吸水性紙層部３の上に、３ｍｍ以下の粒度に粉砕されたラミネート紙廃材粉砕粉７の１６．９重量部が載置され、その上に３重量部の高吸水性樹脂粉が供給されて、吸水性層部４が形成され、該吸水性層部４の上に、４．７重量部の吸水紙で上部吸水性紙層部４が設けられ、その上を、２．２重量部のポリプロピレン不織布５で覆って、透水性の多孔質層部６が形成され、前記ポリプロピレン不織布５の端部は、最下層のポレエチレンフィルム２の端部とホットメルト接着剤を介してホットメルト接着させて動物用シーツが形成された。
本例においても、前記例１乃至例４の場合と同様に、上部吸水性紙層部、吸水性層部及び下部吸水性紙層部は、重ねられて、エンボス加工されて、シート状に一体化されている。本例において使用されたラミネート紙は、ポリプロピレンフィルムが２０重量パーセント被覆されているものを使用した。本例における動物用シーツの使用前の燃焼熱は５５２０ｋｃａｌ／ｋｇであるが、子犬の五回の排尿量に相当する７５ｍｌの疑似尿で濡れた後のシーツの燃焼熱は２００９ｋｃａｌ／ｋｇであり、燃焼不良にはならない。
【００３７】
例７
本実施例は、例５に示した動物用シーツの事例において、ラミネート紙廃材粉砕粉に代えて、紙おむつ廃材粉砕粉を分級して高吸水性樹脂及び綿状パルプを回収した残りの分級産物、即ち分級前の紙おむつ廃材粉砕粉の高吸水性樹脂含有量より高吸水性樹脂含有量低い分級産物を使用した事例である。
図２において、３重量部のポリエチレンフィルムで不透水性膜層部２が設けられ、該不透水性膜層部２の上に、２．１重量部の吸水紙で下部吸水性紙層部３が設けられ、該下部吸水性紙層部３の上に、３ｍｍ以下の粒度の紙おむつ廃材粉砕粉の高吸水性樹脂含有量の低い分級産物７の１６．９重量部が載置され、その上に３重量部の高吸水性樹脂粉が供給されて、吸水性層部４が形成され、該吸水性層部４の上に、４．７重量部の吸水紙で上部吸水性紙層部４が設けられ、その上を、２．２重量部のポリプロピレン不織布５で覆って、透水性の多孔質層部６が形成され、前記ポリプロピレン不織布５の端部は、最下層のポレエチレンフィルム２の端部とホットメルト接着剤を介してホットメルト接着させて動物用シーツが形成された。
本例においても、前記例１乃至例５の場合と同様に、上部吸水性紙層部、吸水性層部及び下部吸水性紙層部は、重ねられて、エンボス加工されて、シート状に一体化されている。本例における動物用シーツは、子犬の五回の排尿量に相当する７５ｍｌの疑似尿で濡れた後においても、燃焼不良にはならない。
【００３８】
図３において、衛生用品１は、底面部が不透水性膜層部２で形成され、該不透水性膜層部２の上に、高吸水性樹脂量の必要量が包含されている廃材粉砕粉により吸水性層部４が形成され、その上に上部吸水性紙層部５が配置されており、その上を覆って、透水性の多孔質層部６が形成されており、前記透水性の多孔質層部６の端部は、最下層の前記不透水性膜層部２の端部ととホットメルト接着等により接着又は接合されて衛生用品１が形成されている。
【００３９】
例８
本実施例は、図３に示す衛生用品１の構成を、動物用シーツに適用した事例である。図３において、３重量部のポリエチレンフィルムで、底部を形成する不透水性膜層部２が設けられ、該不透水性膜層部２の上に、１７．６重量部の粒度３ｍｍ以下の紙おむつ裁断屑の粉砕粉で吸水性層部４が形成され、その上に４．７重量部の吸水紙４で上部吸水性紙層部５が設けられ、その上を、２．８重量部のポリプロピレン不織布で覆って、透水性の多孔質層部６が形成されており、該ポリプロピレン不織布６の端部は、最下層の前記ポリエチレンフィルム２の端部とホットメルト接着剤を介してホットメルト接着されて、動物用シーツが形成されている。
本例の動物用シーツにおいて、使用前の燃焼熱は、６０９４キロカロリー（ｋｃａｌ）／ｋｇであるが、子犬の五回の排尿量に相当する７５ｍｌの疑似尿で濡れた後においても、燃焼熱は１８５２ｋｃａｌであり、本例の動物用シーツは燃焼不良にはならない。
【００４０】
図４には、本発明の一実施例の衛生用品１の製造工程が示されている。衛生用品１は、ポリエチレンフィルムにより形成された不透水性膜層部２により底部が形成され、該不透水性膜層部２上に吸水紙が配置されて下部吸水性紙層部３が形成され、その上に、紙おむつ廃材粉砕粉７が層状に配置され、その上に高吸水性樹脂８が供給され、高吸水性樹脂８は、紙おむつ廃材粉砕粉７中に分散混入して、紙おむつ廃材粉砕粉と共に、吸水性層部４を形成し、その吸水性層部４の上に、吸水紙が配置されて、上部吸水性紙層部５が形成され、その上を、ポリプロピレン不織布で覆って、透水性の多孔質層部６を形成する。
【００４１】
図３において、下側吸水紙３のロール９は、下側吸水紙送り出しローラ１０により引き出されて、紙おむつ廃材粉砕粉７供給ローラ１１に送られる。紙おむつ廃材粉砕粉供給ローラ１１の上方には、紙おむつ廃材１２の供給部１３に接続する粉砕機１４が設けられており、供給された紙おむつ廃材を粉砕機１４により３ｍｍ以下の粒度に粉砕し、この粉砕された紙おむつ廃材粉砕粉は供給ローラ１１から下側吸水紙３の上に供給される。紙おむつ廃材粉砕粉が供給された下側吸水紙３は、吸水紙３上に紙おむつ廃材粉砕粉の量が一定となるように調整されて、水の噴霧箇所１５に送られて、水噴霧器１６から水が下側吸水紙３上に一定量載置されている紙おむつ廃材粉砕粉上に噴霧される。水が噴霧された紙おむつ廃材粉砕粉を載せた下側吸水紙３は、高吸水性樹脂８の散布箇所１７に送られる。水が噴霧された紙おむつ廃材粉砕粉は、下側吸水紙３と共に、高吸水性樹脂７の散布箇所１４に送られる。該散布箇所１４に送られた紙おむつ廃材粉砕粉は、散布箇所１４で高吸水性樹脂散布機１８から高吸水性樹脂８が散布される。紙おむつ廃材粉砕粉７に散布された高吸水性樹脂８は紙おむつ廃材粉砕粉中に分散混合されて、吸水性層部４を形成する。
【００４２】
紙おむつ廃材粉砕粉７に高吸水性樹脂８が散布されて吸水性層部４が形成された下側吸水紙３は、上側吸水紙５の供給箇所１９に送られて、上側吸水紙５のロール２０から、吸水性層部４の上方に上側吸水紙５が載せられる。吸水性層部４の下側及び上側に吸水紙３及び５が配置された吸水性層部を有する積層物２１は、エンボス機２２に送られてエンボスが形成される。エンボスが形成された吸水性層部有する積層物２１は、マットカッター２３に送られて、長さ４５０ｍｍの吸水性層部を有する積層物２１に切断される。切断された吸水性層部を有する積層物２１の下方には、下方からバックフィルム用のポリエチレンフィルム２がポリエチレンフィルム２のロール２４から供給され、吸水性層部を有する積層物２１はポリエチレンフィルム２の上に載せられて、ポリプロピレン不織布６を被せる箇所２５に送られる。
ポリプロピレン不織布６は、ポリプロピレン不織布６のロール２６から送られ、途中ホットメルト接着剤が噴霧器２７から、ポリプロピレン不織布６の接着箇所に噴霧される。ホットメルト接着剤が噴霧されたポリプロピレン不織布５は、積層物上に載せられる。ポリプロピレン不織布が載せられた吸水性層部の積層物は、サイドシール機２８に送られて、両側部は、圧着されて、ホットメルト接着剤により接着される。両側部が接着された積層物は、エンドシール機２９に送られて長手方向両端部が接着され、製品カッター３０に送られ、所定の寸法に切断され製品として送られる。製品カッター３０で切断された製品は、搬送路３１により折り機によって折られ包装機により包装されて出荷される。
【００４３】
【発明の効果】
本発明において、シーツは、上面を形成する透水性の多孔質層部と、下面を形成するプラスチック製の不透水性膜層部と、前記多孔質層部の下面に接して位置する吸水性の紙層部と、前記吸水性の紙層部の下面に接して位置してプラスチック廃材粉、紙廃材粉及び吸水性樹脂の混合物を含む吸水性層部を備えており、前記不透水性膜層部は、前記吸水性層部の下方に位置して配置されているので、弾力性を有し、人又は動物が、休養時及び就寝時に使用して、肌触りが良く、筋肉痛を防止することができる。
【００４４】
本発明においては、プラスチックフィルムを含む紙おむつ廃材、生理用ナプキン廃材及び尿パッド廃材等の衛生用品廃材並びにラミネート紙廃材等の紙廃材を紙おむつ、動物用シーツ等の衛生用品製造原料とするので廃材の有効利用を図ることができ、またプラスチック材料やゴム質の材料を粉砕して細かい粒子又は粉砕片とするので、プラスチック材料やゴム質の材料に保水性を持たせることができ、綿状パルプが減少しても、適当な弾性等を保つことができ、また、使用後の尿及び汗等の水分により、シーツの燃焼熱が低下しても、その分プラスチックフィルムの混合により、使用後のシーツの燃焼熱を高めることができ、使用後のシーツの燃焼不良を解消することができ、シーツの焼却が容易となり、またプラスチックフィルムの処分も有効且つ容易となり、廃材処理費用を低くすることができる。
【図面の簡単な説明】
【図１】本発明の一実施例の動物用シーツの説明図である。
【図２】発明の別の一実施例の動物用シーツの説明図である。
【図３】図１及び図２に示した実施例と異なる本発明の一実施例の衛生用品の説明図である。
【図４】本発明の衛生用品を製造する工程を示す概略の工程図である。
【符号の説明】
１衛生用品、人用紙おむつ、動物用シーツ
２上側吸水紙、上部吸水紙層部
３高吸水性ポリマーシート
４吸水性層部
５下側吸水紙、下部吸水紙層部
６ポリプロピレン不織布
７紙おむつ紙廃材粉砕粉
８高吸水性樹脂
９下側吸水紙のロール
１０下側吸水紙３の送り出しローラ
１１紙おむつ廃材粉７の砕粉供給ローラ
１２紙おむつ廃材
１３紙おむつ廃材供給部
１４粉砕機
１５水噴霧箇所
１６水噴霧器
１７高吸水性樹脂の散布箇所
１８高吸水性樹脂の散布機
１９上側吸水紙４の供給箇所
２０上側吸水紙のロール
２１積層物
２２エンボス機
２３マットカッター
２４ポリレエチレンフィルム２のロール
２５ポリプロピレン不織布５を被せる箇所
２６ポリプロピレン不織布のロール
２７ホットメルト接着剤噴霧器
２８サイドシール器
２９エンドシール機
３０製品カッター
３１搬送路[0001]
[Industrial application fields]
The present invention relates to a sanitary product, that is, a sanitary product for humans or animals, and in particular, laminated paper waste material, plastic organic waste material, paper waste material, for example, diaper waste material ground material, urine pad waste material ground material, sanitary napkin waste material ground material Products, animal paper diaper waste pulverized material, animal sheets waste material pulverized material, laminated paper waste material pulverized material, paper napkin or sanitary ware using waste material such as pulverized paper waste material coated with plastic, i.e. for humans The present invention relates to sanitary articles for humans or animals such as diapers, sanitary napkins, urine pads, animal diapers or animal sheets.
The present invention also relates to sanitary articles such as disposable paper diapers, sanitary paper napkins or urine pads used for bedtime, rest and excretion, diapers for pets, or sheets for animals.
[0002]
[Prior art]
Conventional sanitary articles for humans or animals such as disposable diapers and animal sheets for disposable use have a water-permeable porous layer part forming an upper surface and a plastic impermeable film layer forming a lower surface. A water-absorbing upper paper layer portion disposed in contact with the lower surface of the water-permeable porous layer portion, and a water-absorbing lower paper disposed in contact with the upper surface of the water-impermeable film layer portion. A layer portion, and formed between the water-absorbing upper paper layer portion and the water-absorbing lower paper layer portion with a water-absorbing layer portion containing paper powder such as a highly water-absorbing resin and fluff. Yes.
[0003]
[Problems to be solved by the invention]
As described above, paper powder is used together with a highly water-absorbent resin in the water-absorbing layer portion of sanitary articles such as conventional disposable paper diapers, sanitary pads, urine pads, or animal sheets. In this conventional sanitary product, a pulp pulverized product is used as the paper powder used in the water-absorbing layer. Recently, however, the pulp pulverized product is difficult to obtain and relatively expensive. The use of the pulverized material becomes difficult and is a problem. Therefore, recent disposable sanitary products have reduced the amount of pulp pulverized material used in the water-absorbent layer, and increased the amount of water-absorbing resin to compensate for the decrease in water absorption due to the decrease in pulp pulverized material. The water absorbing layer portion is formed. However, in this way, disposable sanitary goods having a water-absorbing layer portion with reduced pulp pulverized material and increased water-absorbing resin are used in conventional sanitary products in order to reduce the amount of pulp pulverized material used. Compared to this, it is a problem because it is formed relatively thin, has poor elasticity, and gives a relatively firm feeling.
[0004]
Laminated paper, on the other hand, is used in tableware such as milk cartons, paper plates, paper teacups, paper cups, etc., but when cutting laminated paper for molding, a large amount of laminated paper is scraped. However, since a plastic film is used as a raw material, the combustion heat is high, and its treatment is a problem.
In addition, large quantities of sanitary items such as paper diapers, which are poorly inspected, are produced even during the manufacture of sanitary products such as paper diapers, sanitary napkins, urine pads, animal paper diapers, and animal sheets. In addition, sanitary articles such as paper diaper cutting waste and sanitary napkin cutting waste are generated, and their disposal is a problem.
The present invention relates to problems relating to raw materials and elasticity of conventional paper diapers, sanitary napkins, urine pads, animal sheets, office paper waste, laminated paper waste, sanitary napkin waste, incontinence pad waste, urine pad waste And it aims to solve the problems of disposal of sanitary ware waste such as paper diaper waste at once.
[0005]
[Means for Solving the Problems]
The present invention uses, as raw materials for human disposable diapers or animal sheets, laminated paper waste materials, disposable diaper waste materials, sanitary napkin waste materials, waste material materials containing plastic materials such as urine pad waste materials, and comparison. It is an object of the present invention to provide a sanitary article having high elasticity and water absorption, that is, a human disposable diaper, a sanitary napkin or a urine pad, an animal diaper, or an animal sheet.
[0006]
That is, the present invention relates to a water-permeable porous layer portion forming an upper surface, a plastic impermeable membrane layer portion forming a lower surface, and a water-absorbing paper positioned in contact with the lower surface of the porous layer portion. In a sanitary article including a layer portion, a water absorbent layer portion containing plastic waste material powder, paper waste material powder and water absorbent resin powder is provided between the paper layer portion and the water-impermeable film layer portion, and the water absorbent layer portion At least a part of the plastic waste powder and paper waste powder of the paper is pulverized laminate paper waste or plastic waste paper, diaper waste crushed material, urine pad waste pulverized material, sanitary napkin waste pulverized A sanitary product comprising a mixture of two or more kinds of waste pulverized material in a crushed material, animal paper diaper waste material or animal sheet waste material , and the present invention forms an upper surface. A water-permeable porous layer A plastic impermeable membrane layer portion forming a lower surface, a water-absorbing upper paper layer portion located in contact with the lower surface of the porous layer portion, and an upper surface of the impermeable membrane layer portion. In the sanitary ware provided with a water-absorbing lower paper layer part, a water-absorbing layer part containing plastic waste material powder, paper waste material powder and water-absorbing resin powder is provided between the upper paper layer part and the lower paper layer part , At least a part of the plastic waste material powder and paper waste material powder of the water-absorbing layer part is a laminated paper waste material pulverized material or a paper waste material pulverized material coated with plastic, a paper diaper waste pulverized material, and a urine pad waste material pulverized material. A sanitary product characterized by containing a mixture of two or more kinds of waste material pulverized material in sanitary napkin waste material, animal paper diaper waste material or animal sheet waste material Invention forms the upper surface A water-permeable porous layer part, a plastic water-impermeable film layer part forming a lower surface, a water-absorbing upper paper layer part located in contact with the lower surface of the porous layer part, and the water-impermeable film In a sanitary product having a water-absorbing lower paper layer portion disposed in contact with the upper surface of the layer portion, the upper water layer portion and the lower paper layer portion are partitioned by an intermediate water absorbent paper layer portion between the upper paper layer portion and the lower paper layer portion. A water-absorbing layer portion including plastic waste material powder, paper waste material powder and water-absorbing resin powder formed, and at least part of the plastic waste material powder and paper waste material powder of the water-absorbing layer portion is laminated. Paper waste material crushed material or plastic waste paper crushed material, paper diaper waste pulverized material, urine pad waste pulverized material, sanitary napkin waste pulverized material, animal paper diaper waste pulverized material or animal sheet waste pulverized material Two or more types of waste crushed material In a sanitary product characterized by containing a mixture of
[0007]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, sanitary goods mean paper diapers, urine pads, sanitary napkins, animal paper diapers, and animal sheets. The sanitary article of the present invention is used for excretion as well as sanitary articles such as conventional paper diapers and animal sheets, but is also used for rest and sleeping.
In the present invention, the sanitary product has a water-permeable porous layer portion, for example, a nonwoven fabric layer portion made of plastic fiber such as polypropylene resin, polyethylene resin, nylon resin, vinylon resin, or rayon fiber, or polyethylene resin, polypropylene. It can be formed with a porous film made of plastic such as resin or vinyl chloride resin, and the lower surface can be formed with a water-impermeable film layer made of plastic such as polyethylene resin or polypropylene resin.
[0008]
In the present invention, the water-absorbing paper layer portion is provided on the one hand as the upper paper layer portion in contact with the lower surface of the porous layer portion, and on the other hand, the lower paper is in contact with the upper surface of the water-impermeable film layer portion. It can be provided as a layer part. Thus, when the water absorbent paper layer portion is provided up and down, the water absorbent layer portion can be provided between the upper paper layer portion and the lower paper layer portion. Since the water-absorbing layer portion is sandwiched between the portions and an embossing treatment or the like can be performed, the water-absorbing layer portion can be fixed between the upper paper layer portion and the lower paper layer portion, which is preferable. However, in the present invention, a water-absorbing paper layer portion can be provided in contact with the lower surface only under the porous layer portion. Further, the water-absorbing layer part can be divided into an upper water-absorbing layer part and a lower water-absorbing layer part by partitioning with an intermediate water-absorbing paper layer part.
In any case, it is preferable that the water-absorbing paper layer portion is formed of water-absorbing paper or crepe paper because good water absorption can be secured.
Waste material crushed waste paper diaper waste powder ground material, urine pad waste material ground material, sanitary napkin waste material ground material, animal paper diaper waste material ground material, animal sheet waste material ground material, laminate Paper waste material pulverized material, paper napkin waste material pulverized material, and waste material pulverized material such as paper scraps coated with plastic are formed into a particle size of 5 mm or less, preferably 3 mm or less, by pulverization or the like. Is preferred.
[0009]
In the present invention, a water-absorbing layer portion containing a mixture of plastic waste material powder, paper waste material powder and a water-absorbing resin is provided between or in contact with the water-absorbing paper layer portion. it can. Examples of plastic waste material powder used in this water-absorbing layer include polyethylene film waste material, polypropylene film waste material, rubber material waste material, etc., and paper waste material powder includes punch scraps and / or book paper. Waste paper crushed materials such as cutting waste can be used as paper waste material powder, but waste paper diaper waste material, sanitary napkin waste material ground material, urine pad waste material ground material, animal paper diaper waste material ground material, animal sheet waste material ground material or Paper napkin waste material crushed material, or two or more waste material pulverized mixtures of these waste material pulverized materials can also be used in the same manner, and among the classified products obtained by classifying the waste material pulverized material or the waste material pulverized mixture, classification A classified treatment product having a high content of paper material as compared with the pulverized waste material or waste material pulverized mixture before treatment can also be used.
[0010]
In the present invention, the water absorbent layer portion is formed of plastic waste material powder, paper waste material powder, and water absorbent resin powder. In the present invention, at least a part of the water-absorbing layer portion containing the plastic waste material powder, paper waste material powder and water-absorbent resin powder is pulverized paper diaper waste material, urine pad waste material, sanitary napkin waste material It is possible to use a pulverized product, a crushed product of animal paper diaper waste, a crushed product of animal sheet waste, or a pulverized mixture of two or more kinds of waste materials in the crushed product of these waste materials.
Waste crushed paper diaper powder containing plastic material used in the present invention, pulverized waste urine pad waste, ground sanitary napkin waste, ground animal diaper waste, animal sheet waste When the pulverized material, the laminated paper waste material pulverized material, and the pulverized material of waste material such as paper scraps coated with plastic or rubber are formed into a particle size of 5 mm or less, preferably 3 mm or less, by pulverization or the like, It is preferable because the water retention of the plastic material is improved and the presence of the plastic material and the rubber material is hardly perceived and the touch is improved.
[0011]
In the present invention, at least a part of the plastic waste material pulverized material of the water-absorbing layer portion includes a pulverized material of waste paper diaper, a pulverized material of urine pad waste, a ground material of sanitary napkin waste material, a ground material of animal paper diaper waste material, an animal Sheet waste crushed material, laminated paper waste pulverized material, waste material pulverized material such as paper scraps coated with plastic, or a pulverized mixture of two or more kinds of these waste materials, Among the classification treatment products of the pulverized product or the pulverized mixture of waste materials, classification treatment products having a higher plastic material content than the pulverized waste material or the pulverized waste material mixture before the classification treatment can be used.
[0012]
In the present invention, at least part of the paper waste material powder and the water absorbent resin waste material powder in the water absorbent layer portion including the plastic waste material powder, the paper waste material powder, and the water absorbent resin waste material powder includes a diaper waste material pulverized material and a urine pad waste material pulverized material. , Sanitary napkin waste pulverized material, animal paper diaper waste pulverized material or animal sheet waste pulverized material, or two or more kinds of waste material pulverized mixture of these waste material pulverized products, or classification processing products of the waste material pulverized material or waste material pulverized mixture In addition, it is possible to use a classification treatment product having a high content of the paper material and the water-absorbent resin as compared with the pulverized waste material before the classification treatment.
[0013]
In the present invention, at least a part of the paper waste material powder of the water absorbent layer portion including the plastic waste material powder, the paper waste material powder and the water absorbent resin powder is a diaper waste material ground material, a urine pad waste material ground material, a sanitary napkin waste material ground material , Animal paper diaper waste pulverized material, animal sheets waste material pulverized material, laminated paper waste material pulverized material, paper napkin waste material pulverized material, paper waste material crushed material on which plastic is applied, or two or more types of waste material pulverized material Among the mixture, or the waste material pulverized product or the waste material pulverized mixture classification treatment product, the classification treatment having a higher content of plastic material, paper material or water absorbent resin than the waste material pulverized material or waste material pulverized mixture before the classification treatment The product can be used.
[0014]
In the present invention, at least a part of the water absorbent resin powder of the water absorbent layer portion including plastic waste powder, paper waste material powder, and water absorbent resin powder is a diaper waste pulverized material, a urine pad waste pulverized material, or a sanitary napkin waste material Among the pulverized product, or two or more kinds of pulverized waste material mixture, or the classification product of the pulverized waste material or the pulverized waste material mixture, the water absorption compared to the pulverized waste material or the pulverized waste material mixture before the classification treatment. A classification treatment product having a high resin powder content can be used.
[0015]
In the present invention, a water absorbent resin and a highly water absorbent resin can be used as the water absorbent resin powder. As the water-absorbing resin, so-called water-absorbing fibers obtained by imparting water absorption to hydrophobic fibers can be used. In this case, the water-absorbent fiber can be molded as it is or used as a water-absorbent fiber molded body or a pulverized water-absorbent fiber molded body.
When water-absorbing fibers are used, the water-absorbing fibers can be used in place of the water-absorbing resin, but the water-absorbing fiber molded body and / or water-absorbing fiber molding is formed between the upper paper layer portion and the lower paper layer portion. A water-absorbing layer part can be formed by disposing a pulverized body. The water-absorbent fiber molded body can be formed by forming a fabric or a nonwoven fabric and arranging or fixing between the upper paper layer portion and the lower paper layer portion.
[0016]
In the present invention, at least a part of the water absorbent resin powder includes a water absorbent resin (including a highly water absorbent resin), a water absorbent fiber (including a highly water absorbent fiber), a water absorbent fiber molded body, or a water absorbent fiber molded article. Pulverized body, or a mixture of two or more of these water-absorbing materials, diaper waste pulverized material, urine pad waste pulverized material, sanitary napkin pulverized material, or pulverized mixture of two or more of these waste pulverized materials, Alternatively, among the classification treatment products of the waste material pulverized product or the waste material pulverized mixture, a mixture with a classification treatment product having a higher content of water-absorbent resin powder than the waste material pulverized product or the waste material pulverized mixture before the classification treatment is used. Can do.
[0017]
In the present invention, at least a part of the water-absorbent resin powder is a diaper waste pulverized material, a urine pad waste pulverized material, a sanitary napkin waste pulverized material, an animal paper diaper waste pulverized material or an animal sheet waste pulverized material, or a pulverized waste material thereof. Among the two or more types of waste material pulverized mixture, or the waste material pulverized product or the waste material pulverized mixture classification treatment product, the content of the water-absorbent resin powder is larger than the waste material pulverized material or the waste material pulverized mixture before classification treatment. In the case of a classification treatment product, the water-absorbing resin or water-absorbing fiber is supplied onto the paper layer part separately from the pulverized plastic waste material powder and / or paper waste material powder. It is preferable because the supply port can be prevented from being clogged.
[0018]
In the present invention, as the water-absorbent resin powder, waste paper diaper waste, urine pad waste ground, sanitary napkin waste ground, animal paper diaper waste ground, animal sheet waste ground or laminated paper waste ground or these Content of water-absorbent resin powder compared to waste pulverized mixture or waste material pulverized mixture before classification treatment among two or more kinds of waste pulverized mixture, or the waste material pulverized product or classification treatment product of waste material pulverized mixture In the case of using classification processing products with a large size, plastic waste pulverized material and paper waste pulverized material include laminated paper waste material, paper diaper waste material, urine pad waste material, sanitary napkin waste material, animal Paper diaper waste pulverized material or animal sheet waste pulverized material or a mixture of two or more waste materials crushed, or the waste material pulverized material or waste material pulverized mixture Among the classification treatment products, it is possible to use the classification treatment product content is larger plastic materials and paper materials than the waste material ground product before classification treatment or waste material ground mixture.
[0019]
In the present invention, the mixture of pulverized powder of plastic waste material and paper waste material includes cutting waste at the time of manufacturing laminated paper products such as milk cartons, paper plates, paper teacups, tableware such as paper cups, and paper napkins. Pulverized pulverized powder, diaper waste pulverized material containing plastic material and paper material, urine pad waste pulverized material, sanitary napkin waste pulverized material, animal paper diaper waste pulverized material or animal sheet crushed material or these Among these pulverized products or classified processing products of the pulverized mixture, classification with a higher content of plastic material and paper material than the pulverized waste material or pulverized mixed material before classification treatment Processed products can be used. Paper diaper waste, urine pad waste, or sanitary napkin waste contains plastic material, paper material and water-absorbent resin, so as a pulverized mixture containing plastic waste material, paper waste and water-absorbent resin waste, Paper dust generated during the manufacture of the crushed napkin product, so-called dust collection loss can be used.
[0020]
In the present invention, the mixture of the paper waste material powder and the water absorbent resin powder is sandwiched between the plastic waste material powder layers, and the polymer sheet waste material pulverized powder such as so-called polymer sheet cutting waste provided with water absorbent paper on both sides Can be used. When the polymer sheet waste material is used, the water-absorbing paper layer portion in contact with the lower surface of the porous layer portion and the water-absorbing paper layer portion in contact with the upper surface of the water-impermeable film layer portion can be omitted. In the present invention, it is preferable to use a highly water-absorbent resin or a water-absorbent resin contained in the water-absorbent resin waste material because it can reduce the amount used.
[0021]
In the present invention, the water-absorbing resin means a water-absorbing resin having a low water-absorbing ability as compared with the high water-absorbing resin and the higher water-based resin. In the present invention, similarly, the water-absorbing fiber means a water-absorbing resin having a low water-absorbing ability as compared with the high water-absorbing fiber and the higher water-based fiber.
In the present invention, the superabsorbent resin is contained in paper diapers in an amount of 25 to 40% by weight, preferably 30 to 35% by weight, particularly 33% by weight, but in animal sheets, 5 to 15% by weight. 7 to 12% by weight, preferably 10% by weight, so that, for example, when animal sheets are produced using crushed paper diaper waste, the amount of the superabsorbent resin is too large. Therefore, the superabsorbent resin is at least partially separated from the pulverized waste material of the disposable diaper by separation means such as classification, and partly commercialized, but conversely, the diaper is produced from the crushed waste material of animal sheets. In this case, since the amount of the superabsorbent resin is insufficient, it is necessary to add the insufficient amount of the superabsorbent resin from the outside.
[0022]
In the present invention, a highly water-absorbing resin is blended in order to keep the animal sheets water-absorbing. The superabsorbent resin used in the present invention is preferably a resin that can retain its shape even when artificial urine absorbs about 30 to 100 times its own weight of water. Examples of such highly water-absorbent resins include saponified copolymers of vinyl esters and ethylenically unsaturated carboxylic acids or derivatives thereof, graft polymers of starch and acrylic acid, crosslinked products of polyacrylic acid, and vinyl alcohol. And a copolymer of acrylic acid, a partial hydrolyzate of polyacrylonitrile, a crosslinked product of carboxymethyl cellulose, a crosslinked product of polyethylene glycol, a chitosan salt or a pullulan gel. These are used alone or in admixture of two or more in the water-absorbing material powder.
[0023]
In the present invention, as the superabsorbent resin, for example, a superabsorbent resin-containing material recovered from waste paper disposable diapers can be used. Such a regenerated highly water-absorbent resin is artificial urine and has a water absorption capacity of 10 to 30 g / g, which is poor in water absorption performance. However, it has been found that animal sheets can be sufficiently used with this level of water absorption effect. The particle size of the superabsorbent resin used is 50 to 500 μm.
In the case of adding a pulverized product of wood powder and punch scrap to the waste paper powder, the amount of the pulverized product of wood powder and punch scrap is 3 to 20% by weight or less, preferably 3 to 10% by weight of the paper powder. It is as follows.
In the present invention, plastic waste material, paper material waste material and water absorbent material waste material are used after being pulverized to a particle size of 5 mm or less, preferably 3 mm, in order to increase their water absorption and water retention.
[0025]
[Action]
In the present invention, the sheet comprises a water-permeable porous layer portion that forms an upper surface, a plastic water-impermeable film layer portion that forms a lower surface, and a water-absorbing water layer positioned in contact with the lower surface of the porous layer portion. A paper layer portion, and a mixed layer portion including a mixture of plastic waste material powder, paper waste material powder and water absorbent resin, located in contact with the lower surface of the water absorbent paper layer portion, and the water-impermeable film layer portion Is positioned below the mixed layer portion, so that it absorbs urine excreted by humans or animals, has good water retention, has elasticity, and is good as a bedding.
[0026]
In the present invention, the sheet includes a water-permeable porous layer portion that forms an upper surface, a plastic water-impermeable film layer portion that forms a lower surface, and a water-absorbing material positioned in contact with the lower surface of the porous layer portion. In a sanitary article comprising a water-soluble upper paper layer portion and a water-absorbing lower paper layer portion disposed in contact with the upper surface of the water-impermeable film layer portion, a plastic is provided between the upper paper layer portion and the lower paper layer portion. Since it has a water-absorbing layer part containing waste material powder, paper waste material powder, and water-absorbent resin powder, it absorbs urine excreted by humans or animals, has good water retention, has elasticity, and is good as a bedding. .
[0027]
Plastic materials such as polyethylene film, polypropylene film and / or rubber material have high heat of combustion and are hurting the combustion furnace. In the present invention, plastic film is used as waste paper diapers, waste paper napkins and laminates. By mixing with the paper stock contained in the paper waste material, the heat of combustion of the sheet including the plastic film can be increased, and the heat of combustion due to moisture such as urine and sweat adhering to the sheet after use. However, the mixing of the plastic film can improve the combustion failure of the sheet after use, facilitate the processing of the plastic film waste material, and reduce the waste material processing cost.
[0028]
【Example】
Examples of embodiments of the present invention will be described below, but the present invention is not limited to the following descriptions and examples.
FIG. 1 is an explanatory diagram of a sanitary product according to an embodiment of the present invention. FIG. 2 is an explanatory diagram of a sanitary product according to another embodiment of the present invention. FIG. 3 is an explanatory diagram of a sanitary product according to an embodiment of the present invention different from the embodiment shown in FIGS. 1 and 2. FIG. 4 is a schematic process diagram showing a process for producing the sanitary article of the present invention. Corresponding portions in FIGS. 1 to 4 are denoted by the same reference numerals.
[0029]
In FIG. 1, a sanitary product 1 has a bottom portion formed of a water-impermeable film layer portion 2, and a lower water-absorbent paper layer portion 3 is formed on the water-impermeable film layer portion 2. On the paper layer part 3, the water absorbent layer part 4 is formed by waste material pulverized powder containing the necessary amount of the super absorbent polymer amount, and the upper water absorbent paper layer part 5 is disposed thereon, A water-permeable porous layer portion 6 is formed so as to cover it, and an end portion of the water-permeable porous layer portion 6 is connected to an end portion of the water-impermeable membrane layer portion 2 as a lowermost layer. The sanitary product 1 is formed by bonding or bonding by hot melt bonding or the like.
In this example, the upper water-absorbing paper layer portion 3, the water-absorbing layer portion 4 and the lower water-absorbing paper layer portion 5 are overlapped, embossed, and integrated into a sheet shape.
[0030]
Example 1
This example is an example in which the configuration of the sanitary product 1 shown in FIG. 1 is applied to a disposable diaper for humans. In FIG. 1, a water-impermeable film layer portion 2 is provided by 6.1 parts by weight of a polyethylene film, and a lower water-absorbent paper layer is formed by 4.3 parts by weight of water-absorbing paper on the water-impermeable film layer portion 2. 3 is provided, and the water absorbent layer 4 is formed on the lower water absorbent paper layer 3 with 50.6 parts by weight of a paper diaper pulverized powder 3 having a particle size of 3 mm or less, and 4.3 parts by weight thereon. The water absorbent paper 4 is provided with an upper water absorbent paper layer portion, which is covered with 4.7 parts by weight of a polypropylene nonwoven fabric 5 to form a water permeable porous layer portion 6. The end of this is hot melt bonded to the end of the lowermost polyethylene film 2 via a hot melt adhesive to form a disposable diaper for humans.
In this example, the upper water-absorbent paper layer portion, the water-absorbent layer portion, and the lower water-absorbent paper layer portion are overlapped, embossed, and integrated into a sheet shape. In this example, the disposable diaper for human use in this example has a heat of combustion before use of 6531 kilocalories (kcal) / kg, but after getting wet with 300 ml of pseudo urine equivalent to the amount of urination once per person. The heat of combustion of the sheet is 717 kcal / kg, which does not cause a combustion failure.
[0031]
Example 2
In this embodiment, the configuration of the sanitary product 1 shown in FIG. 1 is applied to an animal sheet. In FIG. 1, a water-impermeable film layer portion 2 is provided by 3 parts by weight of a polyethylene film, and a lower water-absorbent paper layer portion 3 is formed by 2.1 parts by weight of water-absorbing paper on the water-impermeable film layer portion 2. The water absorbent layer portion 4 is formed on the lower water absorbent paper layer portion 3 with 17.6 parts by weight of a paper diaper pulverized powder 3 having a particle size of 3 mm or less, and 4.7 parts by weight of the water absorbent layer is formed thereon. The upper water-absorbing paper layer portion is provided by paper 4 and the water-permeable porous layer portion 6 is formed by covering the upper water-absorbing paper layer portion with 2.2 parts by weight of the polypropylene nonwoven fabric 5. The animal sheet is formed by hot-melt bonding to the end of the lowermost polyethylene film 2 via a hot-melt adhesive.
Also in this example, as in the case of Example 1, the upper water-absorbent paper layer portion, the water-absorbent layer portion, and the lower water-absorbent paper layer portion are overlapped, embossed, and integrated into a sheet shape. .
The animal sheet of this example has a combustion heat before use of 6408 kcal / kg, but the heat of combustion of the sheet after wetting with 75 ml of simulated urine equivalent to the urine output of the puppy five times is It is 1354 kcal / kg and does not cause poor combustion.
[0032]
Example 3
This example is an example in which the configuration of the sanitary product 1 shown in FIG. 1 is applied to an animal sheet, but the water-absorbing layer portion is formed of a highly water-absorbing fiberboard provided with water-absorbing paper on the upper and lower surfaces. This is an example. In FIG. 1, a veterinary sheet 1 has a water-impermeable film layer 2 at the bottom formed of 3 parts by weight of a polyethylene sheet, and a water-absorbent paper layer on the upper and lower surfaces on the water-impermeable film layer 2. 20.3 parts by weight of a non-woven type plate-like superabsorbent fiber (150 g / m 2) provided with a portion 4 is arranged to form the water absorbent layer portion 3. On this water-absorbing layer portion 3, 2.2 parts by weight of the polypropylene nonwoven fabric 5 is arranged to form a water-permeable porous layer portion 6, and the end of the polypropylene nonwoven fabric 5 is the lowermost layer. An animal sheet is formed by hot melt bonding to the end of the polyethylene film 2 via a hot melt adhesive.
The heat of combustion before use of the animal sheet in this example is 5560 kilocalories (kcal) / kg, but the heat of combustion of the sheet after wetting with 75 ml of simulated urine equivalent to the amount of urination of the puppy five times is 933 kcal / kg and does not cause poor combustion.
[0033]
Example 4
In this embodiment, the configuration of the sanitary product 1 shown in FIG. 1 is applied to an animal sheet. In FIG. 1, a water-impermeable membrane layer portion 2 that forms a bottom portion is provided by 3 parts by weight of a polyethylene film, and a water-absorbing lower layer is absorbed on the water-impermeable membrane layer portion 2 by 2.1 parts by weight of absorbent paper. The water-absorbing paper layer portion 3 is provided, and the water-absorbing layer portion 4 is formed on the lower water-absorbing paper layer portion 3 with 17.6 parts by weight of a paper diaper pulverized powder 3 having a particle size of 3 mm or less. On the water permeable membrane layer portion 2, the water absorbent layer portion 4 is formed by pulverized powder of 17.6 parts by weight of paper diaper cutting waste having a particle size of 3 mm or less, and the upper portion is formed by 4.7 parts by weight of the water absorbent paper 4. A water-absorbing paper layer portion 5 is provided, and the water-permeable paper layer portion 5 is covered with 2.8 parts by weight of a polypropylene nonwoven fabric to form a water-permeable porous layer portion 6. It is hot-melt bonded to the end of the lower polyethylene film 2 via a hot-melt adhesive, Use sheets are formed.
In the animal sheet of this example, the heat of combustion before use is 6094 kilocalories (kcal) / kg, but even after wetting with 75 ml of simulated urine equivalent to the urine output of the puppy five times, the heat of combustion is It is 1852 kcal, and the animal sheet of this example does not cause poor combustion.
[0034]
In FIG. 2, the sanitary product 1 is different from the sanitary product 1 shown in FIG. In the sanitary product 1 of this example, the bottom surface portion is formed of the water-impermeable film layer portion 2, the lower water-absorbent paper layer portion 3 is formed on the water-impermeable film layer portion 2, and the lower water-absorbent film layer portion 2 is formed. On the paper layer part 3, the water-absorbing layer part 4 is formed by the waste water-pulverized powder 7 having a super-absorbent resin amount less than the required amount and the super-absorbent resin powder 8 that compensates for the shortage of the super-absorbent resin, The upper water-absorbent paper layer portion 4 is disposed on the upper water-permeable paper layer portion 4 so as to cover the upper water-permeable paper layer portion 4. The water-permeable porous layer portion 6 is formed at the end of the water-permeable porous layer portion 6. The sanitary article 1 is formed by being bonded or bonded to the end portion of the water-impermeable film layer portion 2 by hot melt bonding or the like.
In this example, the upper water-absorbing paper layer portion 3, the water-absorbing layer portion 4 and the lower water-absorbing paper layer portion 5 are overlapped, embossed, and integrated into a sheet shape.
[0035]
Example 5
In this embodiment, the configuration of the sanitary product 1 shown in FIG. 2 is applied to a disposable diaper for humans. In FIG. 2, a water-impermeable film layer portion 2 is provided by 6.1 parts by weight of a polyethylene film, and a lower water-absorbent paper layer is formed by 2.1 parts by weight of water-absorbing paper on the water-impermeable film layer portion 2. Part 3 is provided, and 34.1 parts by weight of the diaper pulverized powder 3 having a particle size of 3 mm or less having a superabsorbent resin content of 24% by weight is placed on the lower water absorbent paper layer part 3. 11.7 parts by weight of the superabsorbent resin powder is supplied on top to form the superabsorbent layer part 4 having a superabsorbent resin content of 33% by weight. The upper water-absorbing paper layer portion is placed with 5 parts by weight of water-absorbing paper 4, and the water-permeable porous layer portion 6 is formed by covering the upper water-absorbing paper layer portion with 4.4 parts by weight of the polypropylene nonwoven fabric 5. The end of the nonwoven fabric 5 is hot-melt bonded to the end of the lowermost polyethylene film 2 via a hot-melt adhesive. Is, disposable diapers 1 for people is formed.
Also in this example, as in Examples 1 to 3, the upper water-absorbent paper layer portion, the water-absorbent layer portion and the lower water-absorbent paper layer portion are overlapped, embossed, and integrated into a sheet shape. It has become.
The paper diaper for human use in this example has a combustion heat before use of 5577 kilocalories (kgal) / kg, but the heat of combustion of the sheets after getting wet with 300 ml of pseudo urine equivalent to one urine output per person Is 536 kcal / kg and does not result in poor combustion.
[0036]
Example 6
This embodiment is an example in which the configuration of the sanitary product 1 shown in FIG. 2 is applied to an animal sheet. In FIG. 2, a water-impermeable film layer portion 2 is provided by 3 parts by weight of a polyethylene film, and a lower water-absorbent paper layer portion 3 is formed on the water-impermeable film layer portion 2 by 2.1 parts by weight of water-absorbing paper. 16.9 parts by weight of the laminated paper waste material pulverized powder 7 pulverized to a particle size of 3 mm or less is placed on the lower water-absorbing paper layer part 3, and 3 parts by weight of high water absorption is placed thereon. The water absorbent layer portion 4 is formed by supplying the water-soluble resin powder, and the upper water absorbent paper layer portion 4 is provided on the water absorbent layer portion 4 with 4.7 parts by weight of water absorbent paper. The water-permeable porous layer portion 6 is formed by covering with 2.2 parts by weight of the polypropylene nonwoven fabric 5, and the end portion of the polypropylene nonwoven fabric 5 is the end portion of the lowermost polyethylene film 2 and the hot melt adhesive. The animal sheets were formed by hot melt bonding.
Also in this example, as in Examples 1 to 4, the upper water-absorbent paper layer portion, the water-absorbent layer portion and the lower water-absorbent paper layer portion are overlapped, embossed, and integrated into a sheet shape. It has become. The laminated paper used in this example was a polypropylene film coated with 20 weight percent. The heat of combustion before the use of the animal sheets in this example is 5520 kcal / kg, but the heat of combustion of the sheets after getting wet with 75 ml of simulated urine corresponding to the amount of urination of the puppy five times is 2009 kcal / kg, It does not result in poor combustion.
[0037]
Example 7
In this example, in the case of the animal sheets shown in Example 5, instead of the laminated paper waste material pulverized powder, the remaining classified product obtained by classifying the paper diaper waste pulverized powder and recovering the superabsorbent resin and the cotton pulp, That is, this is an example of using a classified product having a high water-absorbing resin content lower than the high water-absorbing resin content of the pulverized waste paper diaper powder before classification.
In FIG. 2, a water-impermeable film layer portion 2 is provided by 3 parts by weight of a polyethylene film, and a lower water-absorbent paper layer portion 3 is formed on the water-impermeable film layer portion 2 by 2.1 parts by weight of water-absorbing paper. 16.9 parts by weight of the classification product 7 having a low water-absorbing resin content of the diaper waste paper pulverized powder having a particle size of 3 mm or less is placed on the lower water-absorbing paper layer 3, 3 parts by weight of the superabsorbent resin powder is supplied to form a water absorbent layer 4, and the upper water absorbent paper layer 4 is formed on the water absorbent layer 4 with 4.7 parts by weight of water absorbent paper. Is coated with 2.2 parts by weight of the polypropylene non-woven fabric 5 to form a water-permeable porous layer 6, and the end of the polypropylene non-woven fabric 5 is the bottom layer of the polyethylene film 2. An animal sheet was formed by hot melt bonding with the end portion and a hot melt adhesive.
Also in this example, as in the case of Examples 1 to 5, the upper water-absorbent paper layer portion, the water-absorbent layer portion and the lower water-absorbent paper layer portion are overlapped, embossed, and integrated into a sheet shape. It has become. The animal sheet in this example does not become defective in combustion even after being wetted with 75 ml of pseudo urine corresponding to the urine output of the puppy five times.
[0038]
In FIG. 3, the sanitary product 1 has a bottom portion formed of a water-impermeable film layer portion 2, and a waste material pulverization in which a necessary amount of a superabsorbent resin is included on the water-impermeable film layer portion 2. A water-absorbing layer portion 4 is formed of powder, an upper water-absorbing paper layer portion 5 is disposed thereon, and a water-permeable porous layer portion 6 is formed so as to cover the water-absorbing layer portion 4. The end portion of the porous layer portion 6 is bonded or joined to the end portion of the water-impermeable film layer portion 2 as the lowermost layer by hot melt bonding or the like to form the sanitary article 1.
[0039]
Example 8
This example is an example in which the configuration of the sanitary product 1 shown in FIG. 3 is applied to an animal sheet. In FIG. 3, a water-impermeable membrane layer portion 2 that forms a bottom portion is provided by 3 parts by weight of a polyethylene film, and a 17.6 parts by weight paper diaper having a particle size of 3 mm or less is formed on the water-impermeable membrane layer portion 2. The water-absorbing layer 4 is formed from the pulverized powder of cutting waste, and the upper water-absorbing paper layer 5 is provided on the water-absorbing paper 4 by 4.7 parts by weight, and 2.8 parts by weight of polypropylene on the upper part. A water-permeable porous layer portion 6 is formed by covering with a nonwoven fabric, and the end of the polypropylene nonwoven fabric 6 is hot-melt bonded to the end of the lowermost polyethylene film 2 via a hot-melt adhesive. Thus, an animal sheet is formed.
In the animal sheet of this example, the heat of combustion before use is 6094 kilocalories (kcal) / kg, but even after wetting with 75 ml of simulated urine equivalent to the urine output of the puppy five times, the heat of combustion is It is 1852 kcal, and the animal sheet of this example does not cause poor combustion.
[0040]
FIG. 4 shows a manufacturing process of the sanitary article 1 according to one embodiment of the present invention. The sanitary product 1 has a bottom formed by a water-impermeable film layer portion 2 formed of a polyethylene film, and a water-absorbing paper is disposed on the water-impermeable film layer portion 2 to form a lower water-absorbing paper layer portion 3. The diaper waste material pulverized powder 7 is disposed in layers on the diaper waste material, and the superabsorbent resin 8 is supplied on the diaper waste material pulverized powder 7. Along with the powder, the water-absorbing layer part 4 is formed, the water-absorbing paper is arranged on the water-absorbing layer part 4, the upper water-absorbing paper layer part 5 is formed, and the top is covered with a polypropylene nonwoven fabric, A water-permeable porous layer portion 6 is formed.
[0041]
In FIG. 3, the roll 9 of the lower water absorbent paper 3 is pulled out by the lower water absorbent paper feed roller 10 and sent to the paper diaper waste material crushed powder 7 supply roller 11. Above the paper diaper waste material pulverized powder supply roller 11, a pulverizer 14 connected to the supply unit 13 for the paper diaper waste material 12 is provided, and the supplied paper diaper waste material is pulverized to a particle size of 3 mm or less by the pulverizer 14. The crushed paper diaper waste material pulverized powder is supplied onto the lower water absorbent paper 3 from the supply roller 11. The lower absorbent paper 3 supplied with the diaper waste pulverized powder is adjusted so that the amount of the diaper waste pulverized powder becomes constant on the absorbent paper 3 and sent to the water spray point 15 from the water sprayer 16. Water is sprayed on the paper diaper waste material pulverized powder placed on the lower absorbent paper 3 by a certain amount. The lower water-absorbing paper 3 on which the diaper waste material pulverized powder sprayed with water is placed is sent to the sprayed portion 17 of the superabsorbent resin 8. The paper diaper waste material pulverized powder sprayed with water is sent together with the lower water absorbent paper 3 to the sprayed portion 14 of the highly water absorbent resin 7. The diaper waste material pulverized powder sent to the spraying part 14 is sprayed with the superabsorbent resin 8 from the superabsorbent resin sprayer 18 at the spraying part 14. The superabsorbent resin 8 dispersed in the diaper waste material pulverized powder 7 is dispersed and mixed in the diaper waste material pulverized powder to form the water absorbent layer portion 4.
[0042]
The lower water absorbent paper 3 in which the water absorbent layer 8 is formed by spreading the super absorbent resin 8 on the paper diaper waste material pulverized powder 7 is sent to the supply location 19 of the upper water absorbent paper 5 to roll the upper water absorbent paper 5 20, the upper water absorbent paper 5 is placed above the water absorbent layer portion 4. The laminate 21 having the water-absorbing layer portion in which the water-absorbing papers 3 and 5 are disposed on the lower side and the upper side of the water-absorbing layer portion 4 is sent to an embossing machine 22 to form emboss. The laminate 21 having the water-absorbing layer portion on which the emboss is formed is sent to the mat cutter 23 and cut into the laminate 21 having the water-absorbing layer portion having a length of 450 mm. Below the laminate 21 having the cut water-absorbing layer portion, the polyethylene film 2 for the back film is supplied from below from the roll 24 of the polyethylene film 2, and the laminate 21 having the water-absorbing layer portion is the polyethylene film 2. And is sent to a place 25 where the polypropylene nonwoven fabric 6 is covered.
The polypropylene nonwoven fabric 6 is fed from the roll 26 of the polypropylene nonwoven fabric 6, and the hot melt adhesive is sprayed from the sprayer 27 onto the bonded portion of the polypropylene nonwoven fabric 6 on the way. The polypropylene nonwoven fabric 5 sprayed with the hot melt adhesive is placed on the laminate. The laminate of the water-absorbing layer part on which the polypropylene nonwoven fabric is placed is sent to the side sealing machine 28, and both side parts are pressure-bonded and bonded by a hot melt adhesive. The laminate having both side portions bonded thereto is sent to the end seal machine 29, and both end portions in the longitudinal direction are bonded together, sent to the product cutter 30, cut into a predetermined size, and sent as a product. The product cut by the product cutter 30 is folded by a folding machine along the conveyance path 31, packed by a packaging machine, and shipped.
[0043]
【The invention's effect】
In the present invention, the sheet comprises a water-permeable porous layer portion that forms an upper surface, a plastic water-impermeable film layer portion that forms a lower surface, and a water-absorbing water layer positioned in contact with the lower surface of the porous layer portion. A water layer comprising a paper layer part and a mixture of plastic waste material powder, paper waste material powder and water absorbent resin, located in contact with the lower surface of the water absorbent paper layer part, and the water-impermeable film layer Since the part is located below the water-absorbing layer part, the part has elasticity and is used by a person or animal at rest and at bedtime to have a good touch and prevent muscle pain Can do.
[0044]
In the present invention, waste paper diapers including plastic film, sanitary napkin waste and urine pad waste, and waste paper such as laminated paper waste are used as raw materials for manufacturing sanitary goods such as paper diapers and animal sheets. It can be used effectively, and the plastic material or rubbery material is crushed into fine particles or crushed pieces, so that the plastic material or rubbery material can have water retention, Even if it decreases, it can maintain appropriate elasticity and the like, and even if the heat of combustion of the sheet decreases due to moisture such as urine and sweat after use, the sheet after use can be mixed by the plastic film. The heat of combustion can be increased, the defective combustion of the sheets after use can be eliminated, the incineration of the sheets becomes easy, and the disposal of plastic film Enabled and easy, you are possible to lower the waste treatment costs.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of an animal sheet according to an embodiment of the present invention.
FIG. 2 is an explanatory view of an animal sheet according to another embodiment of the present invention.
FIG. 3 is an explanatory diagram of a sanitary product according to an embodiment of the present invention different from the embodiment shown in FIGS. 1 and 2;
FIG. 4 is a schematic process diagram showing a process for manufacturing the sanitary article of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hygiene article, human paper diaper, animal sheet 2 Upper water absorption paper, upper water absorption paper layer part 3 High water absorption polymer sheet 4 Water absorption layer part 5 Lower water absorption paper, lower water absorption paper layer part 6 Polypropylene nonwoven fabric 7 Paper diaper paper waste material Pulverized powder 8 Superabsorbent resin 9 Lower water absorbent paper roll 10 Lower water absorbent paper 3 feed roller 11 Paper diaper waste material powder 7 crushed powder supply roller 12 Paper diaper waste material 13 Paper diaper waste material supply unit 14 Crusher 15 Water spray point 16 Water Sprayer 17 Superabsorbent resin spraying part 18 Superabsorbent resin sprayer 19 Upper water absorbent paper 4 supply part 20 Upper water absorbent paper roll 21 Laminate 22 Embossing machine 23 Mat cutter 24 Polyethylene film 2 roll 25 Polypropylene Location 26 for covering nonwoven fabric 5 Roll of polypropylene nonwoven fabric 27 Hot melt adhesive sprayer 28 Side seal device 29 Ndoshiru machine 30 product cutter 31 transport path

Claims

Sanitary article comprising a water-permeable porous layer part forming an upper surface, a plastic water-impermeable film layer part forming a lower surface, and a water-absorbing paper layer part positioned in contact with the lower surface of the porous layer part in, between the paper layer portion and the impermeable film layer portion, the plastic waste powder comprises a water-absorbent layer portion including paper waste powder and the water-absorbing resin powder, plastic waste powder and paper water-absorbing layer portion At least a part of the waste material powder is a laminate paper waste pulverized material or a plastic waste paper crushed material, paper diaper waste pulverized material, urine pad waste pulverized material, sanitary napkin waste pulverized material, animal paper diaper waste material A sanitary article characterized by containing a mixture of two or more kinds of crushed material or crushed material of animal sheet waste material .

A water-permeable porous layer part forming an upper surface, a plastic impermeable film layer part forming a lower surface, a water-absorbing upper paper layer part located in contact with the lower surface of the porous layer part, and In sanitary ware comprising a water-absorbing lower paper layer portion disposed in contact with the upper surface of the water-impermeable film layer portion, between the upper paper layer portion and the lower paper layer portion, plastic waste material powder, paper waste material powder and water absorption A water-absorbing layer portion containing resin powder is provided, and at least part of the plastic waste material powder and paper waste material powder of the water-absorbing layer portion is crushed laminate paper waste material or paper waste material crushed paper And a mixture of two or more types of waste pulverized material in crushed disposable diapers, ground urine pad waste, sanitary sanitary napkin waste, animal paper diaper waste or animal sheet waste Hygiene products characterized by that.

A water-permeable porous layer part forming an upper surface, a plastic impermeable film layer part forming a lower surface, a water-absorbing upper paper layer part located in contact with the lower surface of the porous layer part, and In a sanitary article having a water-absorbing lower paper layer portion disposed in contact with the upper surface of the water-impermeable film layer portion, an upper water-absorbing paper layer portion and an upper layer portion are interposed between the upper paper layer portion and the lower paper layer portion. A water-absorbing layer part including plastic waste material powder, paper waste material powder and water-absorbing resin powder formed by partitioning into a lower layer part, and at least part of the plastic waste material powder and paper waste material powder of the water-absorbing layer part For example, pulverized laminated paper waste or plastic waste paper , diaper waste pulverized, urine pad waste, sanitary napkin waste, animal paper diaper waste or animal sheets More than two kinds of crushed waste Hygiene, characterized in that the mixture of the waste material ground material is contained.