JP3784213B2

JP3784213B2 - Absorber and sheet and packaging material using the absorber

Info

Publication number: JP3784213B2
Application number: JP21821299A
Authority: JP
Inventors: 伊藤　　博
Original assignee: Daiki Co Ltd
Current assignee: Daiki Co Ltd
Priority date: 1998-11-02
Filing date: 1999-07-30
Publication date: 2006-06-07
Anticipated expiration: 2019-07-30
Also published as: JP2000198176A

Description

【０００１】
【発明の属する技術分野】
本発明は、吸収体に関し、特に、プラスチック廃材及び紙廃材を利用し、シート、マツト又はシーツ等の薄手或いは厚手の敷物又は包装材料として使用することができ、吸収機能及び／又は保水等の湿度調節機能を有する薄手又は厚手の吸収体に関する。
【０００２】
このような本発明のプラスチック廃材及び紙廃材を利用した吸収体が使用される敷物としては、雨天の場合に、屋根の無いイベント会場の雨天の日の雨による床の濡れ防止用吸水性マット、雨の日の自動車、列車若しくは飛行機などの乗り物の床の濡れ防止用吸水性マット、雨の日の病院、サービスエリア、デパート、ホテル、店舗、オフィスビル若しくはレジャー施設の床の濡れ防止用吸水性マツト、冷蔵庫内の濡れの防止用吸水性マット、調理場の床の濡れの防止用吸水性マット、並びに炊事場又は調理場の生ゴミのドリップ吸収用の吸収シート、給水設備、給湯設備又は便器若しくは洗面具等の衛生器具を備える床の濡れ防止用吸水性マット、冷蔵庫の周囲の床の濡れの防止用吸水性マット、ガソリンスタンド若しくは厨房用の吸油性敷マット、レジャーマツト若しくはマッサージ療法用シーツ、並びにベット用補助マットなどがある。またこの他に、吸収体が使用される包装用のシートとしては、野菜、青果物若しくは花卉類の保水又は調湿機能を有する包装材料、鮮魚、生肉、総菜食品又は弁当等の保水又は調湿機能を有する包装材料、並びに種子、菌株、幼苗若しくは球根の包装材料などがある。また、以上の他に、吸収体が使用される掃除用のシートとしては、機械類や窓の掃除用、建築物の天井部、壁部、床部若しくは窓部等の結露及び濡れの拭き取り用のウエス又は雑巾として使用される吸水性マット又は吸水性シートがある。
【０００３】
そしてまた、本発明の吸収体は、園芸植物の栽培時における水蒸発防止用又は吸油性による廃油処理用の使い捨て用の吸収体として使用でき、また、本発明の吸収体は、シーツ内部の吸水層部、及び使い捨て用の吸収性マット又は吸水性マットの吸水層部に使用でき、さらに、本発明の吸収体は、紙おむつ、尿パッド、及び生理用ナプキン等の使い捨て用の衛生材料の吸水部材として使用でき、さらにまた、本発明の吸収体は、動物用シーツ、ペットシーツ等の愛玩動物用の排泄物処理材の吸水部材として使用でき、さらに、本発明の吸収体は、冷凍水産物の運搬の際に、水産物が氷解した水に濡れるのを防止する吸水性シート、又は鉢植えを被う水蒸発防止用の吸水性シート、鉢植えの下に敷く吸水性シート、水槽の回りに配置する吸水性シート、結露防止用シート等に使用する吸水性シートとして使用でき、さらにまた、傘立ての受部等の滴の垂れる箇所に配置して、傘等から落ちる水滴を吸収する水滴吸収マットとして使用することができる。また、本発明の吸収体は、乗り物のヘッドカバー用のマットとして、又はヘルメット又は帽子内の蒸れ防止用マットとして、さらに、例えばウォシュレット便器での排便後のトイレットペーパーシートとして使用することができる。
【０００４】
【従来の技術】
従来、例えば、床の濡れは、布製の雑巾又は使い捨て用の雑巾や、雑巾、ウエス、スポンジ等の各種の吸収体を取り付けた棒雑巾を使用して拭かれており、また洗面所等の予め水等で濡れる箇所には、吸水性のマットを敷いて床の濡れるのを防止している。
また、一方、使い捨て用の人や動物用シーツには、前記不透水性膜の内側に接して上部吸水性紙層部を設け、シーツ底部の不透水性薄層部の内側に接して、下部吸水性紙層部を設け、前記上下の紙層部間に、高吸水性樹脂を含む紙粉が配置されている。
また、現在、大量の紙製品が生産され、消費されているが、夫々の用途に応じた印刷段階及び製本段階等で、大量の裁断屑が発生し、その量は膨大であり、再生されている。
【０００５】
【発明が解決しようとする課題】
しかし、布製の雑巾や棒雑巾は、繰り返し使用するものであり、使用済みの雑巾を再使用できるようにするためには、濯いだり、また付着する水を絞って除いたり、濯ぐ水を取り替えたりするなどの多くの手間を要し問題である。また、従来の使い捨て用のシーツには、紙粉及び高吸水性樹脂が使用されており、殊に、紙粉には、パルプ粉砕物が使用されている。しかし、パルプ粉砕物は、最近では入手困難であり、しかも比較的高価となっているために、コスト的にその使用が問題とされている。
そこで、使い捨て用のシーツでは、パルプ粉砕物を減少させると共に、パルプ粉砕物に代えて、高吸水性樹脂が使用されている。しかし、パルプ粉砕物を減少させて、高吸水性樹脂を使用した使い捨て用のシーツ等の吸収体は、パルプ粉砕物の使用量が少ないために、比較的薄く形成され、弾力性が乏しくなって、比較的堅い吸収体となり、使い捨て用のおむつ等にとって、パルプ粉砕物の減少が問題とされている。
また、一方、水産物を輸送する場合には、水産物を藁や紙の上に配置して搬送するが、氷解等により藁や紙が濡れ、搬送される水産物が濡れた藁や紙と接触を続けることとなって問題である。
【０００６】
さらに、紙おむつや生理用ナプキンは、大量に製造され、また大量に消費されるが、製造時の裁断の際には、原材料の紙粉及び高吸水性樹脂を含む吸水層部やプラスチックフィルムの裁断屑が大量に発生する。プラスチックフィルム裁断屑は、プラスチック材料の燃焼熱が高く、その処理が問題とされており、また、紙オムツの製造時に大量に発生する検査不良の紙オムツも、その処理が問題とされている。
さらにまた、古紙を再生する段階では、プラスチック材料や金属材料の混入は問題とされるために、壁紙等の建築材として使用される、例えば、化学繊維紙、無機繊維紙、金属繊維紙及び金属酸化物を含有する繊維紙並びにプラスチックフィルム廃材などは除かれて原料として使用されておらず、問題とされている。
本発明は、従来の雑巾やマット等の吸収体の原材料や再使用に係る問題点、或いはシーツの吸収体の原材料及び弾力性に係る問題点並びに、無機繊維紙、プラスチックフィルム廃材や紙オムツ廃材の処分の問題点を解決することを目的としている。
【０００７】
【課題を解決するための手段】
本発明者は、プラスチック材料を含有する不良衛生材料及び衛生材料裁断屑等の衛生材料廃物を粉砕した粉砕物を吸収体に使用することにより、吸収体の吸収能を損なうことなく、吸収体として使用できること及びプラスチック材料の存在が使用後の吸収体の燃焼熱を高めて、自己燃焼継続が可能となり、また焼却処理の際にも燃料の節約を果たすこと、チタン紙廃材、アルミナ紙廃材、チタン酸カリウム紙廃材及びアルミナ・シリカ紙などを吸収体の原料とすることにより、吸収体に臭気等を除去する機能を付与できること発見して本発明に至った。
また、本発明は、各種マット或いは人又は動物用シーツの吸収体の原材料として、プラスチックフィルム等の不透水性膜並びに紙粉又は金属を含有する紙廃材或いは紙おむつ及び生理用ナプキン等の衛生材料の廃材を使用して、比較的吸水性が大きい吸収体、及びまた該吸収体を使用して比較的弾力性のある人又は動物用シーツを提供することを目的としている。
【０００８】
即ち、本発明は、上面を形成する上部吸水性紙層部と、下面を形成する下部吸水性紙層部と、前記上部及び下部吸水性紙層部間に配設され、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含むと共に、少なくとも上部に界面活性剤を含んで形成されている吸水性混合層部とを備えており、前記上部吸水性紙層部、吸水性混合層部及び下部吸水性紙層部は、合わせられて一体に形成されていることを特徴とする吸収体にあり、また、本発明は、上面を形成する上部吸水性紙層部と、下面を形成する下部吸水性紙層部と、前記上部及び下部吸水性紙層部間に配設され、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含むと共に、少なくとも上部に界面活性剤を含んで形成されている吸水性混合層部とを備えており、前記上部吸水性紙層部、吸水性混合層部及び下部吸水性紙層部は、合わせられて積層体に形成されており、少なくともその一方の面にエンボスによる凹凸模様が形成されていることを特徴とする吸収体にあり、さらに、本発明は、上面を形成する上部吸水性紙層部と、下面を形成する下部吸水性紙層部と、前記上部及び下部吸水性紙層部間に配設されている中間吸水性紙層部と、上部吸水性紙層部及び中間吸水性紙層部の間に配設されている吸水性樹脂及び少なくとも一部に界面活性剤を含む吸水性樹脂含有層部と、前記中間吸水性紙層部及び下部吸水性紙層部間に配設され、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含む下部吸水性混合層部とを備えており、前記上部吸水性紙層部、吸水性樹脂含有層部、中間吸水性紙層部、吸水性混合層部及び下部吸水性紙層部は、合わせられて積層体に形成されており、少なくともその一方の面にエンボス皺が形成されていることを特徴とする吸収体にあり、さらにまた、本発明は、上面を形成する上部吸水性紙層部と、下面を形成する下部吸水性紙層部と、前記上部及び下部吸水性紙層部間に配設されている中間吸水性紙層部と、上部吸水性紙層部及び中間吸水性紙層部の間に配設されている吸水性樹脂含有層部と、前記中間吸水性紙層部及び上部吸水性紙層部間に配設され、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含むと共に、少なくとも上部に界面活性剤を含んで形成されている上部吸水性混合層部と、前記中間吸水性紙層部及び下部吸水性紙層部間に配設され、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含んでいる下部吸水性混合層部とを備えており、前記上部吸水性紙層部、吸水性樹脂含有層部、中間吸水性紙層部、上部及び下部吸水性混合層部並びに下部吸水性紙層部は、合わせられて積層体に形成されており、少なくともその一方の面にエンボスによる凹凸模様が形成されていることを特徴とする吸収体にある。
【０００９】
そしてまた、本発明は、上面を形成する透水性薄層部と、下面を形成する透水性又は不透水性薄層部と、前記透水性薄層部の下面に接して位置する上部吸水性紙層部と、前記透水性又は不透水性薄層部の上面に接して配置される下部吸水性紙層部と、前記上部吸水性紙層部と下部吸水性紙層部の間に配設され、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含むと共に、少なくとも上部に界面活性剤を含んでいる吸水性混合層部とを備えており、前記上部吸水性紙層部、吸水性混合層部及び下部吸水性紙層部は、合わせられて積層体に形成されており、少なくともその一方の面にエンボスによる凹凸模様が形成されていることを特徴とするシーツにあり、さらに、本発明は、上面を形成する透水性薄層部と、下面を形成する透水性又は不透水性薄層部と、前記透水性薄層部の下面に接して位置する上部吸水性紙層部と、前記透水性又は不透水性薄層部の上面に接して配置される下部吸水性紙層部と、前記上部及び下部吸水性紙層部間に配設されている中間吸水性紙層部と、上部吸水性紙層部及び中間吸水性紙層部の間に配設され、吸水性樹脂及び少なくとも一部に界面活性剤を含む吸水性樹脂含有層部と、前記中間吸水性紙層部及び下部吸水性紙層部間に配設され、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含む下部吸水性混合層部とを備えており、前記上部吸水性紙層部、吸水性樹脂含有層部、中間吸水性紙層部、下部吸水性混合層部及び下部吸水性紙層部は、合わせられて積層体に形成されており、少なくともその一方の面にエンボスによる凹凸模様が形成されていることを特徴とするシーツにあり、さらにまた、本発明は、上面を形成する透水性薄層部と、下面を形成する透水性又は不透水性薄層部と、前記透水性薄層部の下面に接して位置する上部吸水性紙層部と、前記透水性又は不透水性薄層部の上面に接して配置される下部吸水性紙層部と、前記上部及び下部吸水性紙層部間に配設されている中間吸水性紙層部と、上部吸水性紙層部及び中間吸水性紙層部の間に配設され、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含むと共に、少なくとも上部に界面活性剤を含んでいる上部吸水性混合層部と、前記中間吸水性紙層部及び下部吸水性紙層部間に配設され、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含んでいる下部吸水性混合層部とを備えており、前記上部吸水性紙層部、上部吸水性混合層部、中間吸水性紙層部、下部吸水性混合層部及び下部吸水性紙層部は、合わせられて積層体に形成されており、少なくともその一方の面にエンボスによる凹凸模様が形成されていることを特徴とするシーツにある。
【００１０】
そしてまた、本発明は、上面を形成する透水性薄層部と、下面を形成する透水性又は不透水性薄層部と、前記透水性薄層部の下面に接して位置する上部吸水性紙層部と、前記透水性又は不透水性薄層部の上面に接して配置される下部吸水性紙層部と、前記上部吸水性紙層部と下部吸水性紙層部の間に配設され、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含むと共に、少なくとも上部に界面活性剤を含んでいる吸水性混合層部とを備えており、前記上部吸水性紙層部、吸水性混合層部及び下部吸水性紙層部は、合わせられて積層体に形成されており、少なくともその一方の面にエンボスによる凹凸模様が形成されていることを特徴とする包装材料にあり、さらに、本発明は、上面を形成する透水性薄層部と、下面を形成する透水性又は不透水性薄層部と、前記透水性薄層部の下面に接して位置する上部吸水性紙層部と、前記透水性乃至不透水性薄層部の上面に接して配置される下部吸水性紙層部と、前記上部又は下部吸水性紙層部間に配設されている中間吸水性紙層部と、上部吸水性紙層部及び中間吸水性紙層部の間に配設され、吸水性樹脂及び少なくとも一部に界面活性剤を含む吸水性樹脂含有層部と、前記中間吸水性紙層部及び下部吸水性紙層部間に配設され、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含む下部吸水性混合層部とを備えており、前記上部吸水性紙層部、吸水性樹脂含有層部、中間吸水性紙層部、吸水性混合層部及び下部吸水性紙層部は、合わせられて積層体に形成されており、少なくともその一方の面にエンボスによる凹凸模様が形成されていることを特徴とする包装材料にあり、さらにまた、本発明は、上面を形成する透水性薄層部と、下面を形成する透水性又は不透水性薄層部と、前記透水性薄層部の下面に接して位置する上部吸水性紙層部と、前記透水性又は不透水性薄層部の上面に接して配置される下部吸水性紙層部と、前記上部及び下部吸水性紙層部間に配設されている中間吸水性紙層部と、上部吸水性紙層部及び中間吸水性紙層部の間に配設され、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含むと共に、少なくとも上部に界面活性剤を含む上部吸水性混合層部と、中間吸水性紙層部及び上部吸水性紙層部の間に配設され、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含む下部吸水性混合層部とを備えており、前記上部吸水性紙層部、中間吸水性紙層部、上部及び下部吸水性混合層部及び下部吸水性紙層部は、合わせられて積層体に形成されており、少なくともその一方の面にエンボスによる凹凸模様が形成されていることを特徴とする包装材料にある。
【００１１】
【発明の実施の形態】
本発明において、吸収体は、従来の吸収体と相違して、各種用途の吸収体として使用でき、また、直接シーツとして及びシーツ用として使用でき、さらに直接包装材料として及び包装材料用として使用できるものである。本発明の吸収体をシーツとしてまた包装材料として使用する場合は、本発明の吸収体は、シーツ又は包装材料としての大きさに製造することができる。しかし、本発明の吸収体の上面に、透水性の不織布を配置し、該吸収体の下に不透水性の防水シートを配置して、シート状に一体に形成して、例えば、動物用シーツとして、排泄時に尿等が漏れないようにすることができ、また、その他シーツとして、休養及び就寝用などの各種のシーツなどに使用することができ、またマットとして、上方及び／又は下方から水を吸収できる敷物とすることができ、さらに包装材料として、表面側及び／又は裏面側から水分の調整を行うことができる包装材料としての使用することができる。
【００１２】
本発明において、吸収体は、その上部には、上面を形成する上部吸収性紙層部が設けられ、底部には、下面を形成する下部吸収性紙層部が設けられる。本発明において、上部及び下部吸収性紙層部は、水の吸収速度の大きい薄葉紙等で形成されるのが好ましい。本発明においては、シーツ又は包装材料とする場合には、上面を透水性薄層部で形成し、底面を透水性又は不透水性のプラスチックフィルムで形成することができる。この場合は、下部吸収性紙層部の下面に接して不透水性のプラスチックフィルム層部が設けられる。本発明において、底面を不透水性薄層部とする場合には、底部は、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材料製の不透水性のフィルム層部で形成することができる。本発明において、前記上部及び下部の紙層部間には、プラスチック廃材粉砕物、パルプ廃材粉砕物及び吸水性樹脂を含む吸収性混合層部が設けられる。
【００１３】
本発明の吸収体において、上部吸収性紙層部及び下部吸収性紙層部間に設けられている吸収性混合層部としては、プラスチック廃材粉砕物、パルプ廃材粉砕物及び吸水性樹脂を含み、エンボスによる凹凸模様、即ちエンボス加工により形成された凹凸模様を付して比較的柔軟な板状体に加圧成形される。本発明において、エンボス模様は、３ｍｍ未満、好ましくは２ｍｍ以下の幅を有する複数の凸部又は皺を含める複数の凸条により形成される。このようにエンボスによる凹凸模様を有する比較的柔軟な板状体とすることにより、床の部分によく密着して、床の水滴等を吸収し易くできるので好ましい。
【００１４】
本発明において、吸収体は、その上部紙層部は、シーツ又は包装材料の上面を形成する透水性薄層部を支持するものであり、透水性薄層部を透過する水を速やかに吸収できる材料製であるのが好ましく、一般に、一枚以上の薄葉紙により形成される。本発明において、前記上部及び下部の紙層部間には、プラスチック廃材粉砕物、パルプ廃材粉砕物及び吸水性樹脂を含む吸収性混合層部が設けられる。本発明において、吸収性混合層部は、パルプ材を、パルプ廃材粉砕物、プラスチック廃材粉砕物及び吸水性樹脂の混合物で代用されるが、パルプ廃材もパルプ材料と同様に比較的高価であり、その入手も難しいために、使用されるプラスチック廃材粉砕物の量は、使用されるパルプ廃材粉砕物の量よりも大きくなっている。
【００１５】
本発明者は、プラスチック廃材粉砕物の使用が、吸収体において、保水性を増加でき、また弾力性を増加できることを発見し、さらにプラスチック廃材粉砕物の表面に界面活性剤を付着させることにより、プラスチック廃材粉砕物の吸水速度を増加させることができることを発見して、本発明に至った。
本発明において、プラスチック廃材粉砕物、パルプ廃材粉砕物及び吸水性樹脂で形成される吸収性混合層部の少なくとも一部、例えば上部に、界面活性剤を付着させることにより、吸収性混合層部の水の吸水速度を増加することができる。
本発明においては、吸収体の吸収性混合層部に界面活性剤を付着させることにより、吸収性混合層部の吸水速度を高めることができ、吸収体に吸収されないで吸収体の表面に残留する水の残留時間を著しく短縮することができる。したがって、本発明の吸収体を使用してシーツ又は包装材料としたときに、吸収体の上部に配置された透水性薄層部、例えば不織布上に水が残留しないようにすることができ、不織布に比較的乾いた感触を与えることができる。
【００１６】
本発明においては、吸収体の吸水速度を大きくするために、吸収体の上部及び下部は、吸水性紙層部により形成される。この吸水性紙層部は、その吸収速度を大きくするために、一以上のティッシュペーパー、レーヨン紙又は複合紙等の薄葉紙を、一枚づつ合わせて若しくは貼り合わせて形成され、又は予め合わせて一体にされた複数の薄葉紙により形成された吸水紙から形成することができる。薄葉紙の枚数を多くすると、吸収体の吸水速度を大きくすることができる。この場合、薄葉紙については、水に濡れて発色する発色剤又は水と反応して発色する発色剤により着色することができる。吸水紙としては、薄葉紙と化学繊維紙を貼り合わせ加工した吸収性を有する複合紙を使用することができる。
【００１７】
本発明においては、吸収体の保水能力を大きくするために、前記上部及び下部の吸水性紙層部間に、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含む吸水性混合層部が設けられ、前記上部及び下部の吸水性紙層部並びに吸水性混合層部は、一体に合わされて、又は一体に貼り合わされて、少なくとも上面に凸部を有する吸収体を形成することができる。本発明において、吸収体に臭気等の除去機能をもたせるときは、吸水性混合層部に、チタン紙廃材粉砕物、アルミナ紙廃材粉砕物、チタン酸カリウム紙廃材粉砕物又はアルミナシリカ紙廃材粉砕物などの無機繊維紙廃材粉砕物或いは前記無機繊維紙廃材粉砕物の二種以上の粉砕物を配合することができる。さらに本発明においては、吸収体に臭気等の除去機能を持たせるために、前記、無機繊維廃材粉砕物に加えて、タルク、ゼオライト又はベントナイト等の無機質の吸着剤を配合することができる。
【００１８】
本発明において、前記上部及び下部の吸水性紙層部間には、中間吸水性紙層部を設けることができる。この場合、中間吸水性紙層部は、前記上部及び下部の吸水性紙層部と同様に、少なくとも一枚の吸水性に優れる薄葉紙で形成することができるが、吸水性を増加させるために、複数の薄葉紙を、一枚づつ合わせて又は貼り合わせて形成することができ、また、予め合わせて一体にされた複数の薄葉紙により形成することができる。薄葉紙は、水に反応して発色する発色剤により着色されているものとすることができる。上部及び中間吸水性紙層部間には、吸水性樹脂含有層部又は吸水性混合層部が設けられる。前記吸水性樹脂含有層部は、吸水性樹脂を含有すれば足りるが、吸水性樹脂以外に、プラスチック廃材粉砕物及び／又は紙廃材粉砕物を含有させることができ、また、前記吸水性混合層部とは異なる割合で、紙廃材粉砕物及び吸水性樹脂を含ませて形成することができる。この場合においても、吸収体に臭気等の除去機能をもたせるときは、吸水性混合層部に使用する紙廃材に、チタン紙廃材、アルミナ紙廃材、チタン酸カリウム紙廃材又はアルミナシリカ紙廃材等の不良無機繊維紙又は無機繊維紙廃材の粉砕物を使用することができる。このような不良無機繊維紙又は無機繊維紙廃材の粉砕物としては、不良チタン紙若しくはチタン紙廃材の粉砕物、不良アルミナ紙若しくはアルミナ紙廃材の粉砕物、不良チタン酸カリウム紙若しくはチタン酸カリウム紙廃材の粉砕物、不良アルミナ・シリカ紙若しくはアルミナ・シリカ紙廃材の粉砕物又は不良炭素繊維紙若しくは炭素繊維紙廃材の粉砕物或いは前記粉砕物の二以上の混合物がある。
【００１９】
本発明においては、吸収体は、シーツ又は包装材料に使用することができる。吸収体をシーツ又は包装材料とする場合、上面を形成する部材は、その目的に応じて、乾式又は湿式の不織布等の透水性のある薄層部とすることができる。透水性の薄層部は、水透過の程度に応じた大きさの孔を有するプラスチックフィルム又は水透過の程度に応じた透水機能を有する湿式又は乾式の不織布とすることができる。本発明において、吸収体をシーツに使用する場合には、下面となる側を不透水性のプラスチックフィルム等の不透水性の薄層部により形成することができる。このように形成された不透水性薄層部は、下部吸水性紙層部の下面に接して設けられ、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材料製の不透水性のプラスチックフィルムで形成することができる。しかし、本発明において、包装材料の場合には、下面となる薄層部は、包装される材料に応じて、透水性の薄層部とすることができる。透水性の薄層部とする場合には、水透過の程度に応じた大きさの孔を有するプラスチックフィルム又は水透過の程度に応じた透水機能を有する湿式又は乾式の不織布とすることができる。このように吸収体上部及び底部を構成すると、例えば、雨等で濡れた床面に配置することにより、床面を濡らす水を自動的に吸い取ることができ、床面の濡れを拭き取る必要がなくなり、その手間を省くことができる。このように透水性の薄層部を有するシーツは、乗り物の敷物、傘立ての敷物、洗面所の敷物、便器の周囲等の敷物として使用して、夫々の床の濡れを防止することができる。また、透水性の薄層部を、複数の毛細管状の細かい孔を有する材料により形成することにより、例えば青果物又は鮮魚等を包装する包装材料とすると、薄層部に所望寸法の孔を通して、包装された青果物や鮮魚等の被包装材料の水分を適度に調整することができる。
【００２０】
本発明において、プラスチック廃材としては、一般に廃棄される例えば厚さ２ｍｍ以下の合成樹脂繊維廃材、フィルム又はシート状合成樹脂廃材、フィルム又はシート状合成ゴム廃材、プラスチックフィルム廃材があり、５ｍｍ以下、好ましくは３ｍｍ以下の粒度に粉砕されて、吸水性混合層部に、紙廃材粉砕物と共に使用される。このように、プラスチック廃材を５ｍｍ以下、好ましくは３ｍｍ以下の粒度に粉砕すると、保水機能が増大するので好ましい。プラスチック廃材粉砕物は、前記のプラスチック廃材の粉砕物の他に、５ｍｍ以下、好ましくは３ｍｍ以下に粉砕された紙おむつ廃材粉砕物、乳パツド廃材粉砕物、尿パッド廃材粉砕物、生理用ナプキン廃材粉砕物又はラミネート紙廃材粉砕物或いは前記粉砕物の二以上の混合物を分級等により分離された分離産物の中、プラスチック物質に富む分離産物、例えば、主成分としてプラスチック物質を含有する分離産物を使用することができる。
【００２１】
本発明において、紙廃材粉砕物は、粒度が５ｍｍ以下における紙廃材を粉砕した粉砕物であり、例えば、不良紙おむつ若しくは紙おむつ廃材の粉砕物、不良乳パッド若しくは乳パッド廃材の粉砕物、不良尿パッド若しくは尿パッド廃材の粉砕物、不良生理用ナプキン若しくは生理用ナプキン廃材の粉砕物、不良高吸収性繊維若しくは高吸収性繊維廃材、不良感熱紙若しくは感熱紙廃材の粉砕物、不良紙管若しくは紙管廃材の粉砕物、不良紙器若しくは紙器廃材の粉砕物、新聞紙廃材の粉砕物、不良段ボール若しくは段ボール廃材の粉砕物、段ボール原紙の廃材の粉砕物、木材パルプ廃材の粉砕物、古紙パルプ廃材の粉砕物、非木材パルプ廃材の粉砕物、古紙の粉砕物、不良紙管若しくは紙管廃材、不良無機繊維紙若しくは無機繊維紙廃材の粉砕物、不良化学繊維紙若しくは化学繊維紙廃材の粉砕物、乾式若しくは湿式の不良不織布又は乾式若しくは湿式不織布廃材の粉砕物或いは不良ラミネート紙若しくはラミネート紙廃材の粉砕物、不良プリクラロール若しくはプリクラロール廃材の粉砕物、不良感熱紙若しくは感熱紙廃材の粉砕物、不良防臭紙若しくは防臭紙廃材の粉砕物、不良防虫紙若しくは防虫紙廃材の粉砕物、不良吸水紙若しくは吸水紙廃材の粉砕物、不良複写用紙若しくは複写用紙廃材の粉砕物、使用済み紙製容器の粉砕物、不良磁気記録紙若しくは磁気記録紙廃材の粉砕物、或いは前記粉砕物の二以上の混合物などがある。
【００２２】
本発明において、紙廃材粉砕物に使用される紙廃材としては、印刷工場、製紙工場、衛生品製造工場、食品容器製造工場などから排出される、印刷された用紙の不良品、裁断屑及び穿孔屑、文書細断屑、各種紙の不良品及び裁断屑、紙を含む衛生用品の不良品及び裁断屑、並びに食品容器の不良品及び食品容器用紙材の裁断屑などの廃材、例えば、印刷用紙、印刷情報用紙、包装用紙、衛生用紙及び雑種紙等の屑、古紙、新聞紙屑、不織布屑、段ボール屑、紙管屑、紙器屑、感熱紙廃材、衛生材料屑、段ボール原紙の廃材、紙器用原紙の廃材、木材パルプ廃材、古紙パルプ廃材、非木材パルプ廃材等のなどがあり、また、これらの他に、鉄道、飛行機、又は高速道路から排出される使用済み切符などがあり、さらに、これらの他に、高速道路等の各種サービスエリア、各種レジャー施設、駐車場、各種飲料製造工場から排出される使用済み紙製容器、例えば、使用済みの紙コップ及び紙トレー、不良品の紙コップなどがある。これらの紙廃材は、粒度が５ｍｍ以下、好ましくは３ｍｍ以下の粉砕物に粉砕される。これらの紙廃材の粉砕物は、一種類の紙廃材の粉砕物又は二種類以上の紙廃材の粉砕物の混合物として、吸収体に使用される。
【００２３】
このような吸収体に使用されるプラスチック廃材粉砕物及び紙廃材粉砕物としては、プラスチック材料及びパルプ材料を含有する製品の不良品の粉砕物及び該製品の製造時に発生する裁断屑等の廃材の粉砕物がある。このようなプラスチック廃材粉砕物及び紙廃材粉砕物としては、例えば、紙を含む衛生用品の不良品の粉砕物及びその裁断屑の粉砕物があり、特に、不良紙おむつの粉砕物、紙おむつの裁断屑の粉砕物、不良乳パッドの粉砕物、乳パッドの裁断屑の粉砕物、不良尿パッドの粉砕物、尿パッドの裁断屑の粉砕物、不良生理用ナプキンの粉砕物、生理用ナプキンの裁断屑の粉砕物、不良ラミネート紙加工品の粉砕物又はラミネート紙の裁断屑の粉砕物など、或いはこれら粉砕物の二以上の混合物がある。また、プラスチック廃材粉砕物及び紙廃材粉砕物としては、前記の紙廃材粉砕物の他に、プラスチック及びパルプを含む廃材の粉砕物、例えば不良紙おむつの粉砕物、紙おむつの裁断屑の粉砕物、不良乳パッドの粉砕物、乳パッドの裁断屑の粉砕物、不良尿パッドの粉砕物、尿パッドの裁断屑の粉砕物、不良生理用ナプキンの粉砕物、生理用ナプキンの裁断屑の粉砕物、不良ラミネート紙加工品の粉砕物又は使用済みラミネート紙廃材若しくはラミネート紙の裁断屑の粉砕物についての分級処理により分離されたパルプに富む分級産物及びプラスチックに富む分級産物或いは前記プラスチック及びパルプを含む廃材の粉砕物の二以上の混合粉砕物についての分級処理等により分離されたパルプに富む分級産物及びプラスチックに富む分級産物がある。さらにこれらの他に、パルプ含有率が小さいが、上質紙、電算機用紙、事務用紙又は印刷用紙等の文書細断機により細断された細断屑、即ちシュレッダー屑紙、パンチ屑紙、チタン紙、アルミナ紙、アルミナシリカ紙、チタン酸カリウム紙若しくは炭素繊維紙又は湿式若しくは乾式不織布或いはこれらの二以上の紙廃材の組み合わせ及び／又はこれらの紙廃材と上記の紙廃材との組み合わせを、吸収体を構成する紙廃材として使用することができる。本発明において、チタン紙、アルミナ紙、アルミナシリカ紙及びチタン酸カリウム紙は、夫々、二酸化チタン、アルミナ、アルミナシリカ又はチタン酸カリウムを含有する繊維紙であり、例えば、壁紙等として使用されるものである。
【００２４】
本発明においては、吸収体の質感及び弾力感を増すために、吸水性混合層部に使用されるプラスチック廃材粉砕物の含有量は、紙廃材粉砕物含有量に比して多くすることができる。この場合には、バルプ廃材粉砕物の含有量が低下した分、吸水性混合層部の吸水速度が低下することとなり、吸収体の表面には、水が可成の間吸収されないで残留することとなるので、本発明においては、吸収体の表面に夫々独立した複数の凹部又は一部で互いに連続する凹部を形成し、該凹部に、吸収体の表面に残留する水を流入させて収容するようにしている。しかし、凹部に流入した水は、吸水性混合層部の吸水速度が小さいために、吸水性混合層部に吸収されないで残留する。
【００２５】
そこで、本発明においては、吸収体の少なくとも一方の面に、界面活性剤を付着させて、吸収体の水の吸収速度を増加させており、また吸水性樹脂を混合して、吸水性混合層部の保水能力及び吸水能力を増加させている。このように、界面活性剤を吸収体の例えば表面及び／又は裏面に付着させることにより、凹部に溜まる水を吸収体に速やかに吸収させることができ、吸水性樹脂を混合することにより、吸水性混合層部に水を吸水保持させることができる。本発明においては、吸収体表面に凹部を形成することにより、水に接触する表面積を増加させ、さらに凹部に界面活性剤を付着させることにより、吸収体の吸水速度を増加させることによって、吸収体による速やかな吸水を行うことができる。界面活性剤としては、ドデシルベンゼンスルホン酸ナトリウム等の陰イオン界面活性剤が好ましいが、これらの外にラウリルトリメチルアンモニウムクロライド等の陽イオン界面活性剤、オクチルフェニールエーテル等の非イオン界面活性剤などがある。
本発明においては、このように吸収体の表面に、凹部又は凸部を形成し、界面活性剤を付着させることにより、吸収体の表面に水が残留するのを緩和することができる。
【００２６】
本発明においては、シーツを形成する場合には、不織布層部を、吸収体に形成された凸部に支持させるようにして、吸収体の表面上に不織布層部を形成すると、シーツの表面の不織布層部が濡れて、該不織布層部から水が滲み出るのを防止することができるので好ましい。本発明においては、吸収体及びシーツの吸水能力を大きくするために、吸収体の上部及び下部には、薄葉紙で形成された吸水性紙層部が設けられる。吸収体の保水能力を大きくするために、前記上部及び下部の吸水性紙層部間に、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含む吸水性混合層部が設けられ、前記上部及び下部の吸水性紙層部並びに吸水性混合層部は、一体に貼り合わされて吸収体が形成される。
【００２７】
本発明において、上部吸水性紙層部、下部吸水性紙層部、並びに前記上部及び下部の紙層部間に設けられているプラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含む吸水性混合層部は、エンボスを付されて比較的柔軟な板状体に加圧成形される。このように比較的柔軟な板状体とすることにより、床の部分によく密着して、床の水滴等を吸収し易くなるので好ましい。
本発明において、上部及び下部吸水性紙層部間に、中間吸水性紙層部を配設することが出来る。このように吸水性紙層部を三層にすると、上部及び中間吸水性紙層部間の上部の吸水性紙層部間に、吸水性樹脂含有層部を形成することができる。吸水性のみを要し弾力性を必要としない場合は、吸水性樹脂のみを配置することができるが、吸水性のみでなく弾力性を必要とする場合には、吸水性樹脂にプラスチック廃材粉を加えて弾力性を与えることができる。
【００２８】
本発明において、シーツは、上面を形成する透水性薄層部を有しており、この透水性薄層部は、例えばポリプロピレン、ポリエチレン、ナイロン若しくはビニロン等のプラスチック繊維製の不織布又はポリエチレン、ポリプロピレン、塩化ビニル樹脂等のプラスチック材料製の多孔膜で形成することができ、下部は、不透水性のプラスチックフィルム層部であり、プラスチックフィルム層部は、吸収体の場合と同様に、ポリエチレン、ポリプロピレン等のプラスチック製の不透水性の薄層部で形成することができる。本発明において、前記透水性薄層部の内側には、その内側面に接して吸水性紙層部を設けることができる。本発明において、透水性薄層部は、殺菌性及び消臭性が付与されたものを使用すると、使用中に、付着する汗や尿などにより発する臭気を減少させるので好ましい。また、本発明において、生分解プラスチック材料の不透水性膜及び透水性膜層部、並びに生分解プラスチック材料含有の吸水性混合層部を使用すると、得られた吸収体、シーツ及び包装材料を土中に埋めて廃棄することができるので好ましい。本発明の包装材料において、上下両面を透水性とする場合には、上下両面を、不織布等の透水性薄層部とすることができる。
本発明において、透水性薄層部は、例えば、２５ｍｌの水を、例えば洗浄壜のノズルより、１０秒以内に、直径２ｃｍの円内に注入したときに、その全量が透過する時間が２０秒以内のものが好ましく、ここで透過する時間、即ち透水性はさらに短くなる程好ましい。
【００２９】
本発明において、上部、中間部及び下部吸水性紙層部は、吸収紙、吸水紙又はクレープ紙等の薄葉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。また、本発明において、吸水紙には、パルプと化学繊維を液中に分散させ、抄紙して製造した複合紙を使用することができる。薄葉紙に例えばポリプロピレン製の化学繊維紙等の化学繊維紙を貼り合わせた吸水性又は透水性を有する複合紙を使用することができる。本発明において、吸水性の紙層部は、前記透水性薄層部の下面に接して上部吸水性紙層部として設け、また、下部吸水性紙層部は、その侭、吸収体の底部を形成してもよく、底面を不透水性のプラスチック製の薄層部で形成して、底面を補強する事ができる。この場合には、前記下部吸水性紙層部は、該不透水性のププラスチック製の薄層部の内面、即ち上面に接して設けることができる。底部を該不透水性のプラスチック製の薄層部で形成する場合には、底面からの水等の液の吸収を図るために、プラスチック製の薄層部に孔を開けておくのが好ましい。孔の大きさは、底面の機械的強度を維持する上で、小さく形成するのが好ましい。孔の形状は、角形、円形等種々の形状に形成でき、大きさは例えば、３０ｍｍ以下、好ましくは２０ｍｍ以下、更に好ましくは１０ｍｍ以下とするのが好ましい。
【００３０】
本発明においては、前記吸水性の紙層部に接して、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含む吸水性混合層部が設けられる。この吸水性混合層部において、パルプ含有率に比してプラスチック物質含有率が大きく設定されており、紙廃材粉砕物にプラスチック廃材粉砕物を混合して形成される。紙廃材粉砕物が、紙粉、乳パッド廃材粉砕物、尿パツド廃材粉砕物、又は生理用ナプキン廃材粉砕物の場合は、これら廃材粉砕物は、比較的高いプラスチック物質含有率ではあるが、比較的高いパルプ含有率及び高吸水性樹脂含有率であるので、さらに、プラスチック廃材粉砕物、例えば合成樹脂繊維廃材粉砕物、レーヨン繊維廃材粉砕物、ポリエチレンフィルム廃材粉粉砕物、ポリプロピレンフィルム廃材粉砕物、合成ゴム廃材粉砕物を加えて混合することができる。また、紙廃材粉砕物としては、パルプ含有率の低い、例えばパンチ屑若しくは帳簿用紙の裁断屑等の屑紙、又はそれら粉砕物を分級してパルプ含有率が高められた紙廃材粉砕物が使用できる。さらにこれらの他に、紙廃材粉砕物としては、紙おむつ廃材粉砕物、乳パッド廃材粉砕物、ヒップパツド廃材粉砕物、又は生理用ナプキン廃材粉砕物、或いは前記廃材粉砕物の二以上の廃材粉砕物混合物について、分級処理して得られるパルプに富む分級産物を使用することができる。
【００３１】
本発明において、紙廃材として、不良品の紙おむつ、乳パッド、ヒップパツド又は生理用ナプキン等の不良品の衛生材料を使用すると、プラスチック材料、紙粉及び吸水性樹脂を含んでいるので、加えるプラスチック廃材粉砕物及び高吸水性樹脂の量を少なくできることとなり、混合作業が簡単化されることとなり好ましい。前記衛生材料の製造時に発生する裁断屑、及び裁断時発生する粉塵の集塵された所謂集塵ロスは、プラスチック材料及びパルプ材料粉の紙粉を含有するので、例えば粉砕してプラスチック廃材粉砕物及び紙廃材粉砕物として使用できる。これらの衛生材料製造時に発生する裁断屑又は集塵ロスは、吸水性樹脂又は高吸水性樹脂の含有量が少ないので、吸水性樹脂又は高吸水性樹脂を添加混合することが必要である。本発明において、パルプ材料として、殺菌性及び消臭性を有するパルプ廃材の屑を使用すると、ことができる。
【００３２】
本発明において、吸収体は、その表側及び裏側の夫々に吸水紙等の薄葉紙により吸水性紙層部が形成される。吸水紙等の薄葉紙は、例えば、一枚の坪量が１２．５ｇ／ｍ2のティシュペーパとすることができ、上下に夫々一枚宛配置することができる。本発明において、吸収体が、人又は動物用シーツとして使用されるときは、例えば、上面の吸水紙を二枚とし、最上部に位置する吸水紙を検査用吸水紙とすることができる。この場合、該吸水紙には、一般に使用されるｐＨ検出試薬を含有するインク、タンパク質検出試薬を含有するインク、潜血検出試薬を含有するインク又はウロビリノーゲン検出試薬含有するインク或いは前記検出試薬の二以上を印刷することができる。このように、上部の吸水紙を少なくとも二枚とし、その最上部の吸水紙に、検出試薬を印刷することにより、印刷された検出試薬に、紙粉及び高吸水性樹脂の影響を避けることができ、正確な検出を行うことができるので好ましい。また、本発明において、薄葉紙として、殺菌性を有する薄葉紙を使用すると、吸収体、シーツ及び包装材料の使用において、吸収体、シーツ又は包装材料に付着する汗や尿などにより発する臭気を減少させるので好ましい。
【００３３】
本発明において、吸水性樹脂含有層部は、吸水性樹脂のみで形成してもよく、また吸水性樹脂の他に種々の吸水性材料を配合して、例えば吸収性混合層部とすることができる。吸収体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。廃油処理等に使用する場合は、吸油性の高い吸水性樹脂が使用される。
【００３４】
本発明において、廃材に含ませる吸水性樹脂は、吸水性の高い所謂高吸水性樹脂を使用すると、その使用量を少なくできるので好ましい。
本発明において、吸水性樹脂の用語は、高級水性樹脂の他に、高級水性樹脂に比して吸水能力が低い吸水性樹脂をも意味する。
本発明において、不良紙おむつ廃材のみを使用する場合には、高吸水性樹脂は、吸収体の１４乃至２８重量％となり、高い吸水性を維持することができるので好ましい。
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、吸収体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であるのが好ましい。
【００３５】
廃材の紙粉に、パンチ屑の粉砕物を加える場合には、パンチ屑の粉砕物の粒度を小さくして、その使用量は、前記紙粉の３乃至２０重量％以下、好ましくは３乃至１０重量％以下とするのが好ましい。
本発明において、吸水性混合層部に使用されプラスチック廃材並びにパルプ廃材及び吸水性樹脂廃材は、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のが好ましい。
本発明において、吸水紙を上下に夫々一枚宛（吸収体の全重量の１２重量％）配置したときの吸収体の組成は、吸水性樹脂の含有量が１４乃至２８重量％であり、紙廃材粉砕物（紙粉）のパルプ含有量が４０重量％以下であり、プラスチック廃材粉砕物の含有量は５０重量％以下であるのが好ましい。
【００３６】
【作用】
本発明において、吸収体は、上面を形成する上部吸水性紙層部と、下面を形成する下部吸水性紙層部と、前記上部及び下部吸水性紙層部間に、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含むと共に、少なくとも上部に界面活性剤を含んで形成されている吸水性混合層部とを備え、前記上部吸水性紙層部、吸水性混合層部及び下部吸水性紙層部は、合わせわせられて一体に形成されているので、吸収体を床の上に配置した場合、吸収体は、床に落ちる水滴を吸収するが、吸収体の表は比較的乾いた状態を維持する事ができ、また、床が濡れるのを防止することができる。
したがって、例えば、露天のイベント会場の床や運動場の地面の雨による濡れの防止、調理場の床、洗面所の床、冷蔵庫の周囲の床、及びトイレの床等に敷いて、床の水滴を吸収して、床の濡れを防止することができる。また例えば、ベット用補助マットに使用して、夜尿症の患者のベットの濡れを防止することができる。建築物の天井部、壁部又は窓部等の結露の拭き取り用の吸水性マットとして使用して、窓等の結露を除去することができる。また園芸用の水の蒸発防止用の吸水性マットとして、予め湿らせて鉢植え等に被せて使用すると、保水による鉢植えからの水の蒸発を防止することができる。吸水性マットを例えば水産物の下に敷いて、又は吸水性マットを袋状に形成して、水産物を包んで、水産物を氷解した水に接触することなく運搬することができる。
【００３７】
また本発明は、上面を形成する上部吸水性紙層部と、下面を形成する不透水性薄層部と、該不透水性薄層部に下面を接して設けられている下部吸水性紙層部と、前記上部及び下部吸水性紙層部間にプラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂を含むと共に、少なくとも上部に界面活性剤を含んで形成されている吸収性粉砕物混合層を備えており、前記上部吸水性紙層部、吸水性樹脂含有層部、中間吸水性紙層部、吸水性混合層部及び下部吸水性紙層部は合わせられて一体に形成されており、その一方の面にエンボス皺、即ち、２ｍｍ以下の大きさの複数の凹部又は凸部からなる模様が形成されるので、プラスチックフィルム等の不透水性薄層部に穴を開けて、プラスチックフィルム等の不透水性薄層部を透水性とし、濡れた床の水を下面からも吸水できるようにすることができる。また本発明の吸収体及びシーツにおいては、上面から侵入する水が尿などの比較的大量の場合であっても、表面部に水の溜まりを形成しないで、エンボス皺により表面積が増加させられ、界面活性剤が塗布等により付着されて濡れ易くなっているために、吸水性混合層部に、界面活性剤の作用により、比較的速やかに吸収させることができる。このように、本発明の吸収体及びシーツは、使用するパルプ材料の量を半減させて、その分プラスチック廃材の粉砕物で補っても、所定の機械的強度を保って、床に落ちる水滴を吸収し、水場の濡れを解消することができる。したがって、例えば傘立ての受部に配置して、濡れた傘から流れ落ちる水滴を吸収するので、傘立てに水が溜まることがなくなる。
【００３８】
さらに本発明の吸収体及びシーツは、例えば上面を形成する不織布等の透水性の透水性薄層部と、下面を形成するプラスチックフィルム等の不透水性薄層部と、前記透水性薄層部の下面に接して配置されている上部吸水性紙層部と、前記上部吸水性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を含むと共に、少なくとも上部に界面活性剤を含んで形成されている吸水性混合層部と、前記吸水性混合層部の下面に接して配置されている下部吸水性紙層部とを備え、さらに前記不透水性薄層部を、前記下部吸水性紙層部の下方に位置して配置させており、さらに、前記上部吸水性紙層部、吸水性樹脂含有層部、中間吸水性紙層部、吸水性混合層部及び下部吸水性紙層部を、貼り合わせられて一体に形成させており、その一方の面に、エンボス皺、即ち、２ｍｍ以下の大きさの複数の凹部又は凸部からなる皺を形成しているので、プラスチック廃材を吸収体及びシーツの素材として有効に使用することができ、しかも得られた吸収体及びシーツは、人又は動物の排泄した尿が、吸収体及びシーツの表面に目に見えるように溜まることを避けることができ、吸収が良く、また保水性が良くて外に流出することがなく、さらに弾力性があり、動物用シーツとして、またマットや寝具として使用して良好である。
本発明のシーツ及び包装材料においては、ポリエチレンフィルム廃材及びポリプロピレンフィルム廃材等のプラスチックフィルム廃材は、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廃材を、紙おむつ廃材、生理用ナプキン廃材等の衛生材料紙廃材に含有される紙料と混合して吸収体とすることにより、プラスチックフィルム廃材を含めた分だけ吸収体の燃焼熱を高められるので、使用後に吸収体に付着する雨水、水、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廃材の混合により、使用後の吸収体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。
【００３９】
本発明は、上部吸水性紙層部と下部吸水性紙層部との間に配設される吸水性混合層部を、チタン紙廃材の粉砕物、アルミナ紙廃材の粉砕物、チタン酸カリウム紙廃材の粉砕物、アルミナ・シリカ紙廃材の粉砕物若しくは炭素繊維紙廃材などの無機繊維紙廃材の粉砕物又は前記無機繊維紙廃材粉砕物の二以上の混合物を紙廃材の少なくとも一部に使用し、これにプラスチック廃材粉砕物及び吸水性樹脂を配合して、吸収体とするので、吸収体中の無機繊維紙廃材粉砕物の臭気除去機能により、シーツとして使用して、使用時にシーツに発生する臭気を除去することができ、使用後のシーツの臭気を緩和することができる。また、青果物の包装に使用するときは、青果物より発生する成熟ホルモンのエチレンを除去することにより、青果物の新鮮さを保持することができる。
本発明において、透水性とは、透水する性質を意味し、例えば、２０秒以下で水又は疑似尿の一定量（２５ｍｌ）を２ｃｍの円内に注入したときに、その全量の水又は疑似尿が透過するに要する時間（秒）で求められ、透過する時間の短い方が長い方より透水性に優れる。
【００４０】
【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一層の吸水性混合層部を有する吸収体の断面構造の概略を示す概略の部分断面図である。図２は、図１に示す実施例の吸収体の断面構造を有する、本発明の一実施例の吸収体についての幅方向の概略の断面構造を示す断面図である。図３は、前記図１に示す実施例の吸収体の断面構造を有する本発明の他の一実施例の吸収体についての幅方向の概略の断面構造を示す断面図である。図４は、前記図１又は図４に示す実施例の吸収体の断面構造を有するが、図２及び３に示す実施例の吸収体とは異なる本発明の他の一実施例の吸収体についての幅方向の概略の断面構造を示す断面図である。図５は、前記図１に示す実施例の吸収体を使用した本発明の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図６は、前記図１に示す断面構造を有する本発明の一実施例の吸収体を使用する本発明の一実施例の吸水性マットについての概略の断面構造を示す概略の部分断面図である。図７は、前記図２に示す本発明の実施例の吸収体を使用する本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図８は、前記図３に示す本発明の実施例の吸収体を使用する本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図９は、前記図３に示す実施例の吸収体を使用する本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図１０は、前記図４に示す実施例の吸収体を使用する本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図１１は、前記図７に示す実施例の動物用シーツの吸水性混合層部を、吸水性樹脂を偏在させた吸水性混合層部とした本発明の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図１２は、前記図９に示す実施例の動物用シーツの吸水性混合層部を、吸水性樹脂を偏在させた吸水性混合層部とした本発明の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図１３は、前記図１０に示す実施例の動物用シーツにおける吸水性混合層部を、吸水性樹脂を偏在させた吸水性混合層部とした本発明の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図１４は、本発明の他の一実施例の上下二層の吸水性混合層部を有する吸収体の断面構造の概略を示す概略の部分断面図である。図１５は、前記図５に示す実施例の吸収体を使用する動物用シーツについての概略の断面構造を示す概略の部分断面図である。図１６は、前記図１５に示す実施例の断面構造を有する動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図１７は、前記図１５に示す実施例の断面構造を有する動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図１８は、前記図１６に示す実施例の動物用シーツにおける吸水性混合層部を、吸水性樹脂が偏在する吸水性混合層部とした本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図１９は、前記図１７に示す実施例の動物用シーツにおける吸水性混合層部を、吸水性樹脂が偏在する吸水性混合層部とした本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図２０は、吸水性樹脂で形成された上部吸収性混合層部を有する吸収体を使用した本発明の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図２１は、吸水性樹脂で形成された上部吸収性混合層部を有する吸収体を使用した図２０とは異なる本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。図２２は、前記図９及び図１０に示す動物用シーツを製造する工程の概略を示す概略の工程図である。図２３は、前記図２２、図１６及び図１７に示す本発明の実施例の動物用シーツを製造する工程を示す概略の工程図である。図２４は、前記図１８及び１９に示す本発明の実施例の動物用シーツを製造する工程を示す概略の工程図である。図２５は、前記図２０及び２１に示す本発明の実施例の動物用シーツを製造する工程を示す概略の工程図である。前記図１乃至図３２において対応する箇所には同一の符号が付されている。また、図２、図８、図９、図１２、図１６、図１８及び図２０は、図式的に描き易く、吸収体１、上部吸水紙４及び下部吸水紙２、吸収性混合層部３、上部及び下部吸収性混合層部１８及び２０を上方に突き出た山形に誇張して描かれているが、これらの図に示される吸収体１、吸収性マット１１、動物用シーツ１１及び包装材料１１は、何れも厚さが薄いので、例えば上部吸水紙及び下部吸水紙の長さは概略同一である。
【００４１】
図１乃至図４に示す本発明の一実施例において、吸水体１は、その侭、吸収体１として、吸収性マット用、各種シーツ用及び包装材料用であり、一枚以上の薄葉紙で形成されている吸水紙を下部吸水紙２にして底面を形成し、該下部吸水紙２の上に、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂の混合物を載置して、吸水性混合層部３を形成し、この吸水性混合層部３の上には、一枚以上の薄葉紙で形成されている吸水紙を上面を形成する上部吸水紙４として載置し、加圧成形して形成される。
これらの実施例の吸収体１においては、例えば、吸収体１の上面５及び下面６には、エンボス皺が設けられて一体に成形されている。
【００４２】
例１
図２に示す実施例においては、上部吸水紙４は、その幅方向が、下部吸水紙２の幅方向の長さと略等しく形成されている。図３に示す実施例においては、下部吸水紙２は、その幅方向が、上部吸水紙４の幅方向の長さより大きく形成されている。図４に示す実施例においては、下部吸水紙２及び上部吸水紙４の幅方向の長さは、互いに重なり合うように、同一に又は略等しく形成されている。
本例は、以上のように形成されているので、一枚以上の薄葉紙で形成された吸水紙を配置して下部吸水紙２とし、その上に、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂の混合物を載置して吸水性混合層部３を形成する。この形成された吸水性混合層部３の上に、一枚以上の薄葉紙で形成された吸水紙を上部吸水紙として載置して、加圧成形して、吸収体１の上面５及び下面６には、エンボス皺が形成されている。
【００４３】
本例において、吸収体１の吸水速度を大きくするために、吸収体１の粉砕物混合層３の上に、界面活性剤水溶液を噴霧して付着させることができる。この場合、界面活性剤（図示されていない）が噴霧により付着された粉砕物混合層の上に、一枚以上の薄葉紙で形成される吸水紙を上部吸水紙４として配置することができる。本例においては、吸水性混合層部を、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂の混合物を載置して形成するが、プラスチック廃材粉砕物と紙廃材粉砕物の混合物１６を下部吸水紙２の上に載置し、その上一面に、吸水性樹脂１７を散布して、吸水性混合層部３を形成することができる。
本例の吸収体１について、吸水テストが夫々行われた。これらの例における吸水テストは、疑似尿２５ｍｌを分析用の洗浄ビンのノズルより１０秒以内に吸収体の直径２０ｍｍの円内に加え、加えられた疑似尿が、円内の吸収体表面に吸収されないで表面に残留する時間を測定して行われた。界面活性剤を付着させない吸収体の場合は、疑似尿の残留した時間は約３〜４秒であったが、界面活性剤を付着させた吸収体は、疑似尿の残留する時間は、約２〜３秒であり、界面活性剤を付着させない吸収体に比して、疑似尿の残留時間は１／４乃至１／２ほど短縮され、界面活性剤の使用が有効であることが確認された。
疑似尿は、水道水１０００ミリリットル（ｍｌ）に食塩１０グラム（ｇ）及びアンモニア水１０ｍｌを加えて、混合撹拌して溶解させて調製された。
【００４４】
例２
図３に示す実施例は、吸収体１は、幅３００ｍｍ、長さ４５０ｍｍの動物用シーツ用である。本例において、幅３４０ｍｍ、長さ４００ｍｍの下部吸水紙２（１．７ｇ）の上に、プラスチック類（５６重量％）、パルプ類（４０重量％）及び高吸水性樹脂（４重量％）を含む不良紙おむつの分級品の４ｍｍ以下の粉砕物（３６．９ｇ）を配合して吸水性混合層部３を形成した。該吸水性混合層部３の上に、幅２８０ｍｍ、長さ４００ｍｍの上部吸水紙４（１．４ｇ）を配置して、下部吸水紙２の幅方向両端部７を上部吸水紙４の幅方向の端部８の上に折り重ねて、エンボス加工した。このエンボス加工過程で、２ｍｍ以下の幅のエンボス、即ち凹凸模様が上面５及び下面６に形成される。本例において、吸収体１の厚さは０．５５ｍｍであり、エンボスを形成して、吸収体１として一体に形成されている。
本例の吸収体１においては、不良紙おむつ３の粉砕物層３の上部には、陰イオン界面活性剤のドデシルベンゼンスルホン酸ナトリウム１ｍｌを７４ｍｌの水で希釈したドデシルベンゼンスルホン酸ナトリウム溶液の１．５ｍｌを噴霧した層（図示されていない）を形成されており、この界面活性剤溶液が噴霧された吸水性混合層部３の上に、上部吸水紙４（１．４ｇ）が配置されている。このように作製された吸収体について、疑似尿２５ｍｌを注射器により１０秒以内に吸収体の一点に加えて、一点に加えられた疑似尿が、吸収体に吸収されないで表面に残留する時間を測定したところ全量が吸収されるに要した時間は約１乃至２秒であった。この結果は、従来のパルプ及び高吸水性樹脂を使用した吸収体と同様であった。
本例における吸収体１の燃焼熱は、６６８４キロカロリー（ｋｃａｌ）／ｋｇであるが、例えば、シーツ及びマットに使用して、倍量の水を吸水した後においても、燃焼不良にはならない。
【００４５】
例３
図２、図３及び図４において、吸収体１は、上部吸水紙４の幅方向の両端部８の上に下部吸水紙２の幅方向の両端部７を折り重ねて、又は上部吸水紙４の幅方向の両端部８と下部吸水紙２の幅方向の両端部７を重ね合わせて、エンボス加工が施されて形成することができる。下部吸水紙２の幅方向の両端部７を、吸水性混合層部３の幅方向の両端部の上に、夫々折り重ね、その折り重ねた下部吸水紙２の両端部７の上に接触して上部吸水紙４を配置して、吸収体を形成ることができる。
図２、図３及び図４に示す実施例において、吸水性混合層部３としては、プラスチック類（５６重量％）、パルプ類（４０重量％）及び高吸水性樹脂（４重量％）を含む不良紙おむつの分級品の４ｍｍ以下の粉砕物３（３６．９ｇ）が使用されているが、プラスチック廃材粉砕物と紙廃材粉砕物の混合物を下部吸水紙２の上に載置して、プラスチック廃材粉砕物と紙廃材粉砕物の吸水性混合層部１６を形成し、その上に、吸水性樹脂１７を散布して、吸水性樹脂の偏った吸水性混合層部３を形成することができる。この場合、高吸水性樹脂の散布される量は、吸水性混合層部３に、所望の吸水能力及び保水能力を付与するために、実験等により決定するのが好ましい（図１１、図１２及び図１３参照）。
【００４６】
例４
図５に示す実施例の動物用シーツ１１においては、図１の実施例における吸収体１が使用されている。本例の動物用シーツ１１においては、前記吸収体１の下部吸水紙２の下に、プラスチック製のフィルム１２が配置されており、該吸収体１の上部吸水紙４の上には、上部吸水紙の上を覆って、不織布１３が配置されている。この不織布１３の端部１４は、最下層のプラスチックフィルム１２の端部１５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いる。上部吸水紙４の端部９と下部吸水紙２の端部１０を重ね合わせているときは、該両端部は、ホットメルト接着時に熱圧着させることができる。
上部吸水紙４の端部８の上に下部吸水紙２の端部７が折り曲げて重ね合わせられているときには、該両端部７及び８は、糊付け、エンボス加工により、成形時に圧着させることができる。
【００４７】
前記図５に示す実施例において動物用シーツは、以上のように形成されているので、一枚以上の薄葉紙により形成される吸水紙を下部吸水紙２としてプラスチックフィルム１２の上に載置されており、前記下部吸水紙２の上に、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂の混合物を載置して、吸水性混合層部３を形成する。該吸水性混合層部３の上に、一枚以上の薄葉紙により形成される吸水紙を上部吸水紙４として載置して、加圧成形して、吸収体１の上面にエンボスによる凹凸模様を形成して、吸収体１として一体に形成される。このように形成された吸収体１を、プラスチックフィルム１２の上に載せ、プラスチックフィルム１２の上に載せられている吸収体１の上を不織布１３で覆い、不織布１３の端部１４とプラスチックフィルム１２の端部１５とホットメルト接着により接合し、所定寸法に裁断して、動物用シーツ１１を形成する。
【００４８】
本例において、動物用シーツ１１の吸水速度を大きくするために、粉砕物混合層３の上に、界面活性剤水溶液を噴霧して付着させることができる。この場合、界面活性剤が噴霧により付着された粉砕物混合層の上に、一枚以上の薄葉紙で形成される吸水紙を上部吸水紙４として配置して吸収体１を形成し、この形成された吸収体１をプラスチックフィルム１２の上に載せ、プラスチックフィルム１２の上に載せられている吸収体１の上を不織布１３で覆い、不織布１３の端部１４とプラスチックフィルム１２の端部１５とホットメルト接着により接合し、所定寸法に裁断して、比較的吸水速度の大きい動物用シーツ１１を形成する。
本例の動物用シーツ１１について、吸水テストが行われた。本例における吸水テストは、疑似尿２５ｍｌを注射器により１０秒以内に動物用シーツ１１の不織布１３の一点に加えて、その加えられた疑似尿が、シーツに吸収されないで表面に残留する時間を測定して行われた。界面活性剤を付着させない場合でも、吸収体の表面に、エンボスによる３ｍｍ未満の凹凸模様が形成されて、不織布１３の下に疑似尿の残留液の液溜部を形成しているので、動物用シーツ１１の不織布１３の上面に加えられた疑似尿は、１秒以下又は２秒以下の間に不織布を透過し、即ち、シーツに吸収されて消失した。界面活性剤を付着させた吸収体の場合には、動物用シーツ１１の上面に残留する疑似尿が、不織布に留まることがなく、１乃至２秒以内に不織布を透過し、シーツに吸収されて消失した。
【００４９】
例５
図６に示す本発明の実施例において、吸収体１は、吸収性マット用である。図６に示す実施例においては、下部吸水紙２の上に、吸水性混合層部３を覆って、上部吸水紙４が設けられる。本例において、上部及び下部の吸水紙の端部を固定するために、下部吸水紙２の端部７を上部吸水紙４の端部８の上に折り曲げ重ねて、上下の吸水紙の端部を互いに固定して形成することができる。この場合、下部吸水紙２の幅は上部吸水紙４の幅に比して大きく形成され、例えば、本例においては、下部吸水紙２の幅は、上部吸水紙４に対し６０ｍｍ大きく形成されている。さらにまた、図６に示す実施例においては、下部吸水紙２の端部９を上部吸水紙４の端部１０に重ねて、上下の吸水紙の端部を互いに固定して形成することもできる。この場合は、下部吸水紙２の幅は上部吸水紙４の幅と同寸法又は略同寸法に形成される。
本例において、吸収性マット１１は、吸収体１の上部吸水紙４の上に、ポリプロピレンとポリエチレンの複合プラスチック不織布１３が配置され、下部吸水紙２の下に、透水用の孔２１を有するプラスチックフィルム１２が配置されて一体に形成されている。
【００５０】
例６
図７に示す実施例において、吸収体１は、幅４００ｍｍ、長さ６００ｍｍの動物用シーツ用又は足拭き用マット用である。本例において、幅３６０ｍｍ、長さ５６０ｍｍの下部吸水紙２（１６ｇ／ｍ2）３．２ｇの上に、紙おむつ粉砕粉２０ｇ及びパルプ系不織布１３ｇの紙廃材粉砕物及び高吸水性樹脂４ｇを含む３ｍｍ以下の粉砕物を配合して吸水性混合層部３を形成した。該吸水性混合層部３の上に、幅３６０ｍｍ、長さ５６０ｍｍの上部吸水紙４（１６ｇ／ｍ2）３．２ｇを配置して、前記下部吸水紙２の幅方向両端部１０を前記上部吸水紙９の幅方向の端部８の上に重ね合わせて、板状に圧縮成形した。この圧縮成形の過程で、２ｍｍ以下の幅のエンボスを有する上面５及び下面６が形成された。
図８は、前記図４に示す実施例の吸収体を使用した本発明の一実施例の動物用シーツを示すものである。
【００５１】
例７
図９に示す実施例は、図８と同様に、前記図４に示す実施例の吸収体を使用した本発明の一実施例の動物用シーツを示すものである。
前記図９に示す動物用シーツは、ペツトシーツとして、幅３００ｍｍ、長さ４５０ｍｍの寸法のシート状に形成され、１枚当たりの重量は３２．４ｇである。
本例のペツトシーツ１１において、吸収体１は、幅２９０ｍｍ、長さ４００ｍｍの寸法に形成されている。本例において、吸収体１は、薄葉紙で形成されている下部吸水紙２（１２．５ｇ／ｍ2）が、１．７重量部であり、幅３４０ｍｍ、長さ４００ｍｍの大きさに形成されている。下部吸水紙２の上に、紙廃材混合物粉砕物２６重量部及びこれに分散混合する高吸水性樹脂４重量部で形成されている吸水性混合層部３が形成されており、吸水性混合層部３の紙廃材混合物粉砕物は、段ボール屑４０重量％（１０．４重量部）、レーヨン紙廃材３０重量％（７重量部）及びチタン紙３０重量％（７重量部）を含んでいる。本例において、吸水性混合層部３の上には、幅２８０ｍｍ、長さ４００ｍｍの大きさの薄葉紙で形成されている上部吸水紙４（１２．５ｇ／ｍ2）１．４重量部を載置し、その両端部８の上に下部吸水紙４の端部７を折り重ねて、エンボス加工され、３ｍｍ未満の幅の凸条による凹凸模様が形成される。本例において、この吸収体１の上部吸水紙４の上には、ポリプロピレン製の不織布（１８ｇ／ｍ2）２．４重量部を載置し、また、吸収体１の下部吸水紙２の下に、厚さ２０μｍで比重０．９２のポリエチレン製の防水シート２．５重量部を配置して形成される。
本例においては、チタン紙廃材を粉砕して使用したが、チタン紙廃材粉砕物に代えて、又はその一部に代えて、アルミナ紙廃材粉砕物、チタン酸カリウム廃材粉砕物、アルミナシリカ廃材粉砕物或いはこれら二以上の紙廃材粉砕物を使用することができる。
【００５２】
本例により得られるペツトシーツについては、エチレンガス、アンモニア、ピリジン、トリメチルアミン、酢酸、硫化水素及びメチルメルカプタンについての、吸着試験が行われた。エチレンガス、アンモニア、ピリジン、トリメチルアミン、酢酸、硫化水素及びメチルメルカプタンについて、吸着能を有するが、特に酢酸についての吸着能に優れていることがわかった。
本例のペツトシーツ１１においては、吸水性混合層部３の上部には、陰イオン界面活性剤のドデシルベンゼンスルホン酸ナトリウム１ｍｌを７４ｍｌの水で希釈したドデシルベンゼンスルホン酸ナトリウム溶液の１．５ｍｌを噴霧した層が形成される。この場合、界面活性剤溶液が噴霧された吸水性混合層部３の上に、上部吸水紙４（１．４ｇ）が配置され、その上に不織布１３が配置される。このように作製されたペツトシーツについて、疑似尿２５ｍｌを注射器により１０秒以内に吸収体の一点に加えて、一点に加えられた疑似尿が、吸収体に吸収されないで表面に残留する時間を測定したところ全量が吸収されるに要した時間は１秒であった。
【００５３】
例８
前記図１０に示す実施例は、幅４００ｍｍ、長さ６００ｍｍの寸法を有し、一枚当たりの重量が５２．７ｇの動物用シーツ１１及び足拭きマット１１の例である。本例において、前記動物用シーツ１１及び足拭きマット１１には、幅３６０ｍｍ、長さ５６０ｍｍの上部吸水紙４（１６ｇ／ｍ2）３．２ｇ及び幅３６０ｍｍ、長さ５６０ｍｍの下部吸水紙２（１６ｇ／ｍ2）３．２ｇを有し、前記上部吸水紙４の端部８の上に下部吸水紙２の端部が重ねられており、前記上部及び下部の吸水紙の間に、紙おむつ粉砕粉２０ｇ及びパルプ系不織布粉砕粉１３ｇの紙廃材混合物粉砕粉及び高吸水性樹脂４ｇを含み、３ｍｍ以下の粒度の吸水性粉砕物混合物で形成された下部吸水性混合層部１８を有する吸収体１が設けられている。本例の動物用シーツ１１及び足拭きマット１１においては、吸収体１は、エンボスによる凹凸模様が形成されている。本例において、該上部吸水紙の上方に、幅４００ｍｍ、長さ６００ｍｍのポリプロピレン製の不織布（１８ｇ／ｍ2）の４．３ｇが配置され、下部吸水紙２の下には、幅４００ｍｍ、長さ６００ｍｍのポリエチレンフィルム４．６ｇの上に配置されており、その発熱量は５５０３ｋｃａｌ／ｋｇであった。動物用シーツとして、２０ｃｃの疑似尿を１０秒以内で１点に注入して吸水テストをしたが、不織布上面での疑似尿の残留は殆ど確認できなかった。また、足拭きマットとしては、従来のタオルマットと感触に差がなく、使用後もタオルマットと同様に乾燥後繰り返し使用可能であった。
【００５４】
例９
本例は、前記図１０に示す断面構造を有する包装材料についての本発明の一実施例である。
前記図１０に示す包装材料は、野菜、鮮魚、果実又は花卉用のガス吸収性包装材料として、幅３１５ｍｍ、長さ６４０ｍｍの寸法のシート状に形成され、１枚当たりの重量は４０ｇである。
本例のシート状の包装材料１１において、吸収体１は、幅３００ｍｍ、長さ５９０ｍｍの寸法に形成されている。本例において、吸収体１は、下部吸水紙２（１６ｇ／ｍ2）が、２．８重量部であり、幅３００ｍｍ、長さ５９０ｍｍの大きさに形成されている。下部吸水紙２の上に、２４．２重量部の紙廃材混合物粉砕物１６と、これに分散混合する３重量部の高吸水性樹脂１７とで形成されている吸水性混合層部１８が形成されており、吸水性混合層部１８における紙廃材混合物粉砕物１６は、紙おむつ不良品４０重量％、不織布３０重量％及びチタン紙３０重量％を含んでいる。本例において、吸水性混合層部１８の上には、幅３００ｍｍ、長さ５９０ｍｍの大きさの上部吸水紙４（１６ｇ／ｍ2）２．８重量部が幅方向端部８の上に下部吸水紙２の端部７を重ね合わせて、上面に直径３ｍｍの複数の凸部を設けて形成される。本例のシート状の包装材料１１は、この吸収体１の上部吸水紙４の上には、ポリプロピレンとポリエチレンの複合プラスチック不織布１３（１８ｇ／ｍ2）の３．６重量部を載置し、また、吸収体１の下部吸水紙２の下に、ポリエチレンフィルム（１８ｇ／ｍ2）３．６重量部を配置して形成される。
本例の包装材料を、野菜、鮮魚、果実又は花卉用として使用することができる。特に、野菜、果実又は花卉の乾燥を防ぐためには、包装材料の含水率が１５乃至５０重量％となるように水に濡らせて使用するのが好ましい。
本例においては、チタン紙廃材を粉砕して使用したが、チタン紙廃材粉砕物に代えて、又はその一部に代えて、アルミナ紙廃材粉砕物、チタン酸カリウム廃材粉砕物、アルミナシリカ廃材粉砕物或いはこれら二以上の紙廃材粉砕物を使用することができる。
本例により得られる包装材料については、エチレンガス、アンモニア、ピリジン、トリメチルアミン、酢酸、硫化水素及びメチルメルカプタンについての、吸着試験が行われた。エチレンガス、アンモニア、ピリジン、トリメチルアミン、酢酸、硫化水素及びメチルメルカプタンについて、吸着能を有するが、特に酢酸についての吸着能に優れていることがわかった。
本例の包装材料１１においては、吸水性混合層部３の上部には、陰イオン界面活性剤のドデシルベンゼンスルホン酸ナトリウム１ｍｌを７４ｍｌの水で希釈したドデシルベンゼンスルホン酸ナトリウム溶液の１．５ｍｌを噴霧した層が形成される。この場合、界面活性剤溶液が噴霧された吸水性混合層部３の上に、上部吸水紙４（１．４ｇ）が配置され、その上に不織布１６が配置される。このように作製された包装材料について、水２５ｍｌを注射器により１０秒以内に吸収体の一点に加えて、一点に加えられた水が、吸収体に吸収されないで表面に残留する時間を測定したところ、全量の水が吸収されるに要した時間は１秒であった。この結果は、従来のパルプと高吸水性樹脂を使用する吸収体と比較して、同様であった。
【００５５】
例１０
本例は、前記図１０に示す断面構造を有する吸収性シートについての本発明の一実施例である。
前記図１０に示す断面構造の吸収性シートは、例えば、自動車床マット用、洗面所用及びトイレ用の吸水性マットとして使用されるものであり、幅３１５ｍｍ、長さ６４０ｍｍの寸法のシート状に形成され、１枚当たりの重量は４２ｇである。本例の吸収性シート１１において、吸収体１は、幅３００ｍｍ、長さ５９０ｍｍの寸法に形成されている。本例において、吸収体１は、薄葉紙のカラーペーパーで形成されている下部吸水紙２（２０ｇ／ｍ2）が、３．５重量部であり、幅３００ｍｍ、長さ５９０ｍｍの大きさに形成されている。下部吸水紙２の上に、２５．８重量部の紙廃材混合物粉砕物１６及びこれに分散混合する２重量部の高吸水性樹脂で形成されている吸水性混合層部３が形成されており、吸水性混合層部３の紙廃材混合物粉砕物は、新聞紙廃材３０重量％、使用済み切符１０重量％、レーヨン紙廃材３０重量％及びチタン紙３０重量％を含んでいる。本例において、吸水性混合層部３の上には、幅３００ｍｍ、長さ５９０ｍｍの大きさの薄葉紙のカラーペーパーで形成されている上部吸水紙４（２０ｇ／ｍ2）３．５重量部が幅方向端部８に、該下部吸水紙２の端部７を重ね合わせて、エンボス加工されて、２ｍｍ以下の幅の凸条による凹凸模様が形成される。本例において、この吸収体１の上部吸水紙４の上には、ポリプロピレンとポリエチレンの複合プラスチック不織布（１８ｇ／ｍ2）３．６重量部を載置し、また、吸収体１の下部吸水紙２の下に、ポリプロピレンとポリエチレンの複合プラスチック不織布（１８ｇ／ｍ2）３．６重量部を配置して形成される。
本例の吸収性マットを、自動車床マット用、洗面所用又はトイレ用として使用することができる。特に、野菜、果実又は花卉の乾燥を防ぐように使用するときには、包装材料の含水率が１５乃至５０重量％となるように水に濡らせて使用するのが好ましい。
本例においては、チタン紙廃材を粉砕して使用したが、チタン紙廃材粉砕物に代えて、又はその一部に代えて、アルミナ紙廃材粉砕物、チタン酸カリウム廃材粉砕物、アルミナシリカ廃材粉砕物或いはこれら二以上の紙廃材粉砕物を使用することができる。
本例により得られる吸収性マットについては、エチレンガス、アンモニア、ピリジン、トリメチルアミン、酢酸、硫化水素及びメチルメルカプタンについての、吸着試験が行われた。エチレンガス、アンモニア、ピリジン、トリメチルアミン、酢酸、硫化水素及びメチルメルカプタンについて、吸着能を有するが、特に酢酸についての吸着能に優れていることがわかった。
本例の吸収性マット１１においては、吸水性混合層部３の上部には、陰イオン界面活性剤のドデシルベンゼンスルホン酸ナトリウム１ｍｌを７４ｍｌの水で希釈したドデシルベンゼンスルホン酸ナトリウム溶液の１．５ｍｌを噴霧した層が形成される。この場合、界面活性剤溶液が噴霧された吸水性混合層部３の上に、３．５重量部の上部吸水紙４が配置され、その上に不織布１６が配置される。このように作製された吸収性マットについて、水２５ｍｌを注射器により１０秒以内に吸収体の一点に加えて、一点に加えられた水が、吸収体に吸収されないで表面に残留する時間を測定したところ全量が吸収されるに要した時間は１秒であった。この結果は、従来のパルプと高吸水性樹脂を使用する吸収体と比較して、同様であった。
【００５６】
図１１、図１２及び図１３は、本発明の他の一実施例の動物用シーツについての幅方向の断面の概略の断面図である。
図１１乃至図１３に示す実施例において、動物用シーツ１１には、前記吸収体１の下部吸水紙２の下に、プラスチック製のフィルム１２が配置されている。該吸収体１の上部吸水紙４の上には、上部吸水紙の上を覆って、不織布１３が配置されており、該不織布１３の端部１４は、最下層のプラスチックフィルム１２の端部１５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いる。
本例は、以上のように形成されているので、薄葉紙を配置して下部吸水紙２とし、その上に、プラスチック廃材粉砕物と紙廃材粉砕物の混合物１６を載置し、その上に、吸水性樹脂１７を散布して、吸水性混合層部３を形成する。該吸水性混合層部３の上に、一枚以上の薄葉紙により形成されている吸水紙を上部吸水紙４として載置して、エンボス加工により加圧成形され、吸収体１の上面５に複数の２ｍｍ以下の幅の凸条による凹凸模様を形成させて、吸収体１として一体に形成される。このように形成された吸収体１を、プラスチックフィルム１２の上に載せ、プラスチックフィルム１２の上に載せられている吸収体１の上を不織布１３で覆い、不織布１３の端部１４とプラスチックフィルム１２端部１５とホットメルト接着により接合し、所定寸法に裁断して、動物用シーツ１１を形成する。本例において、動物用シーツ１１の吸水速度を大きくするために、粉砕物混合層３の上に、界面活性剤水溶液を噴霧して付着させることができる。この場合、界面活性剤が噴霧により付着された粉砕物混合層の上に、薄葉紙を上部吸水紙４として配置して吸収体１を形成し、この形成された吸収体１をプラスチックフィルム１２の上に載せ、プラスチックフィルム１２の上に載せられている吸収体１の上を不織布１３で覆い、不織布１３の端部１４とプラスチックフィルム１２端部１５とホットメルト接着により接合し、所定寸法に裁断して、比較的吸水速度の大きい動物用シーツ１１を形成する。
本例の動物用シーツ１１について、吸水テストが行われた。本例における吸水テストは、疑似尿２５ｍｌを注射器により１０秒以内に動物用シーツ１１の不織布１３の一点に加えて、その加えられた疑似尿が、吸収体に吸収されないで表面に残留する時間を測定して行われた。
界面活性剤を付着させた吸収体の場合には、動物用シーツ１１の上面に残留する疑似尿が、不織布に留まることがなく、殆ど瞬時に不織布を透過し、シーツに吸収されて消失した。
【００５７】
例１１
図２０及び図２１に示す実施例は、前記図８に示す実施例の吸収体１を備える動物用シーツ１１、吸水性マット１１又は包装材料１１の一実施例を示すものであり、図２０に示す実施例は、動物用シーツ１１又は包装材料１１の事例であり、底部のプラスチックフィルム１２は水を透水しない性質を有している。図２１に示す実施例においては、吸水性マット１１又は包装材料の事例であり、底部のプラスチックフィルム１２は透水する性質を有しており、本例においては、該プラスチックフィルム１２には、水を透水する孔２１が形成されている。
図２２に示す実施例は、前記図９に示す実施例の吸収体１を備える吸水性マット１１又は包装材料１１の一実施例を示すものであって、底部のプラスチックフィルム１２には水を透水する孔が形成されている。
本例において、吸収体１は、一枚以上の薄葉紙で形成されている吸水紙を下部吸水紙２にして底面を形成し、該下部吸水紙２の上に、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂の混合物を載置して、下部吸水性混合層部１８を形成し、この下部吸水性混合層部１８の上には、一枚以上の薄葉紙で形成されている吸水紙を中間吸水紙１９として載置し、該中間吸水紙１９の上に、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂の混合物を載置して、上部吸水性混合層部２０を形成し、上部吸水性混合層部２０の上には、一枚以上の薄葉紙で形成されている吸水紙を、上面を形成する上部吸水紙４として載置し、加圧成形して、吸収体１として形成される。
本例の吸収体１において、吸収体１の上部又は全体に、その上面に又は上方に向けて複数の凸部５を形成すると共に、該凸部５を隔てるように囲み一部で互いに連続する凹部６を形成して、或いは複数の凹部６を形成すると共に、該凹部６を隔てるように囲み一部で互いに連続する凸部５を形成して、吸収体１として一体に形成される。
本例においては、上部吸水性混合層部２０は、プラスチック廃材粉砕物、紙廃材粉砕物及び吸水性樹脂の混合物により形成されているが、上部吸水性混合層部２０は、吸水性樹脂のみで形成してもよく、又はプラスチック廃材粉砕物及び紙廃材粉砕物の混合物で形成した層に吸水性樹脂を散布して形成してもよい。本例において、吸収体１の吸水速度を大きくするために、上部吸水性混合層部２０の上に、界面活性剤水溶液を噴霧して、界面活性剤を付着させることができる。この場合、界面活性剤が噴霧により付着された吸水性混合層部の上に、一枚以上の薄葉紙で形成されている吸水紙を上部吸水紙４として配置することができる。
本例の吸収体１について、吸水テストが行われた。本例における吸水テストは、疑似尿又は水２５ｍｌを注射器により１０秒以内に吸収体の一点に加えて、一点に加えられた疑似尿又は水が、吸収体に吸収されないで表面に残留する時間を測定して行われた。界面活性剤を付着させた吸収体は、界面活性剤を付着させない場合に比して、疑似尿の残留時間は１／４ほど短縮され、界面活性剤の使用が有効であることが確認された。
本例においては、中間吸水紙１９の上に形成される上部吸水混合層部２０は、中間吸水紙１９の上にプラスチック廃材粉砕物と紙廃材粉砕物の混合物２１を載置し、その上に、吸水性樹脂１７を散布して、上部吸水性混合層部２０を形成することができる。
【００５８】
例１２
図１５に示す実施例は、図１４に示す実施例の吸収体を使用した本発明の他の一実施例の動物用シーツについての概略の断面図であり、図１６に示す実施例は、図１４に示す吸収体を使用した本発明の他の一実施例の吸収性マットについての幅方向の断面の概略の断面図である。図１７に示す実施例の動物用シーツは、図１４に示す吸収体を使用した本発明の他の一実施例の吸収性マットについての幅方向の断面の概略の断面図である。図１８及び図１９に示す実施例は、図１４に示す実施例の吸収体の上部及び下部の吸水性混合層部を、吸水性樹脂が偏って配分された上部及び下部の吸水性混合層部とした吸収体を使用する本発明の他の一実施例の動物用シーツについての幅方向の断面の概略の断面図である。図２０及び図２１に示す実施例は、図１４に示す実施例の吸収体の上部吸水性混合層部が、吸水性樹脂又は界面活性剤及び吸水性樹脂で形成された吸収体を使用した本発明の他の一実施例の動物用シーツについての幅方向の断面の概略の断面図である。
【００５９】
例１３
図１６に示す実施例の吸収性マットは、夫々、本発明の他の一実施例の吸収性マットの断面構造の概略を示すものである。これらの例の吸収性マット１１は、例えば、幅３００ｍｍ、長さ４５０ｍｍの吸収性マット１１の例である。図１６に示す実施例の吸収性マット１１には、図１４に示す実施例における吸収体１が使用されている。本例においては、前記吸収体１の下部吸水紙２の下に、約５〜７ｍｍの径の円形の孔２１が３０〜４０％の開口面積で形成されているポリエチレンフィルム１２（２．５ｇ）が配置されており、該吸収体１の上部吸水紙４の上には、上部吸水紙４の上を覆って、ポリプロピレン不織布１３（２．４ｇ）が配置されている。本例において、透水孔２１を有する透水性のポリエチレンフィルム１２を使用するが、透水孔２１を有するポリエチレンフィルム１２に代えて、水を透水する性質を有するポリエチレン製の不織布及びポリプロピレン製の不織布等の水を透水する性質を有する不織布を使用することができる。
【００６０】
例１４
図１７に示す実施例の動物用シーツにおいて、吸収体１は、底部を形成するプラスチックフィルム１２が不透水性である。本例において、下部吸水性混合層部１８は、混合物粉砕物の、ポリエチレンフィルム１６重量％含有のラミネート加工紙屑１０重量％、新聞紙屑１５重量％、段ボール屑１５重量％、プラスチックフィルム屑５５重量％及び高吸水性樹脂５重量％を含む混合物を３ｍｍ以下の粒度に粉砕した混合物粉砕物により形成されているが、この下部吸水性混合層部１８は、前記混合物粉砕物に代えて、チタン紙屑３０重量％、プラスチック含有率が５０重量％の生理用ナプキン不良品１０重量％、紙おむつ、生理用ナプキン等の衛生材料の裁断屑２０重量％、プラスチックフィルム屑３０重量％及び高吸水性樹脂１０重量％を３ｍｍ以下の粒度に粉砕した混合物粉砕物を使用して形成することができる。この場合、吸収体１の組成は、プラスチック類含有率が５５重量％、パルプ類含有率が２３重量％、二酸化チタン等の無機繊維紙廃材９重量％及び高吸水性樹脂１３重量％となる。本例のマットにおいて、中間吸水紙１９の両幅方向の端部２２の上には、下部吸水紙２の両幅方向の端部７が折り重ねられており、上部吸水性混合層部２０は上部吸水紙４と中間吸水紙１９の間に固定され、上部吸水性混合層部の上に上部吸水紙が載せられ、その上に不織布が載せられて、一体に形成される。
【００６１】
例１５
図１８及び図１９に示す実施例は、動物用シーツの事例である。本例において、下部吸水紙２の上に下部吸水性混合層部１８が形成される。本例において、下部吸水性混合層部１８は、プラスチック廃材粉砕物と紙廃材粉砕物の混合物１６を載置し、その上に、吸水性樹脂１７を散布して、吸水性樹脂の分布が偏って形成される。該下部吸水性混合層部１８の上に、一枚以上の薄葉紙により形成されている吸水紙を中間吸水紙１９として載置し、中間吸水紙１９の端部２２の上には、下部吸水紙２の両幅方向の端部７が折り重ねられて、下部吸水紙２と中間吸水紙１９の間に下部吸水性混合層部１８が固定される。本例において、中間吸水紙１９の上には上部吸水性混合層部２０が形成される。この下部吸水性混合層部１８は、プラスチック廃材粉砕物と紙廃材粉砕物の混合物７６を載置し、その上に、吸水性樹脂１７を散布して形成され、上部吸水性混合層部２０は、下部吸水性混合層部１８と同様に、プラスチック廃材粉砕物と紙廃材粉砕物の混合物７８を載置し、その上に、吸水性樹脂７９を散布して形成される。該上部吸水性混合層部２０の上に、一枚以上の薄葉紙により形成されている吸水紙を上部吸水紙４として載置し、エンボス加工により、吸収体１として一体に形成される。この吸収体１の上部又は全体に、エンボスによる凹凸模様が形成される。
本例においては、前記吸収体１の下部吸水紙２の下には、ポリエチレンフィルム１２（２．５ｇ）が配置されている。該吸収体１の上部吸水紙４の上には、上部吸水紙の上を覆って、ポリプロピレン不織布１３（２．４ｇ）が配置されており、ポリプロピレン不織布１３の端部１４は、最下層のポリエチレンフィルム１２の端部１５とホットメルト接着剤を介して、ホットメルト接着により接合し、所定寸法に裁断して、動物用シーツ１１を形成する。
【００６２】
例１６
図２０及び図２１に示す実施例は、幅３００ｍｍ、長さ４５０ｍｍの動物用シーツ１１の例である。本例における動物用シーツ１１には、図１４に示す実施例における吸収体１の上部吸水性混合層部が高吸水性樹脂で形成された吸収体１が使用されている。本例においては、前記吸収体１の下部吸水紙２の下に、ポリエチレンフィルム１２（２．５ｇ）が配置されている。該吸収体１の上部吸水紙４の上には、上部吸水紙の上を覆って、ポリプロピレン不織布１３（２．４ｇ）が配置されており、ポリプロピレン不織布１３の端部１４は、最下層のポリエチレンフィルム１２の端部１５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いる。
本例において、２８０ｍｍ、長さ４００ｍｍの上部吸水紙４（１．４ｇ）及び幅３４０ｍｍ、長さ４００ｍｍの下部吸水紙２（１．７ｇ）の間には、幅２８０ｍｍ、長さ４００ｍｍの中間吸水紙１９（１．４ｇ）が設けられている。
前記下部吸水紙２と中間吸水紙１９の間には、ポリエチレンフィルム１６重量％含有のラミネート加工紙屑１０重量％、新聞紙屑１５重量％、段ボール屑１５重量％、プラスチックフィルム屑５５重量％及び高吸水性樹脂５重量％を含む混合物を３ｍｍ以下の粒度に粉砕した吸水性粉砕物混合物（２５．６ｇ）が下部吸水性混合層部１８として充填されている。本例においては、上部吸水紙４と中間吸水紙８の間には、高吸水性樹脂（２ｇ）が上部吸水性混合層部２０として充填されている。
本例における吸収体１の組成は、プラスチック類５２．５重量％、パルプ類３５．６重量％及び高吸水性樹脂１１．９重量％である。
本例においては、動物用シーツ１１には、上部吸水紙４、上部吸水性混合層部２０、中間吸水紙１９、下部吸水性混合層部１８及び下部吸水紙２は、合わされて、上面に７ｍｍ径の複数の凸部５及び該凸部５を囲み一部で互いに連続する凹部６を形成して、板状に圧縮成形されている。本例において、吸収体１の厚さは１．４ｍｍであり、凸部の高さは吸収体の厚さを含めて、２．７ｍｍであった。
本例の吸収性マット１１の吸収体１においては、上部吸収性混合層部２０の上部には、陰イオン界面活性剤のドデシルベンゼンスルホン酸ナトリウム１ｍｌを７４ｍｌの水で希釈したドデシルベンゼンスルホン酸ナトリウム溶液の１．５ｍｌを噴霧して、陰イオン界面活性剤のドデシルベンゼンスルホン酸ナトリウムの付着層が形成されている。この界面活性剤溶液が噴霧された上部吸収性混合層部２０の上に、上部吸水紙４が配置されている。
本例における吸収性マット１１は、使用前の燃焼熱は、７０９０キロカロリー（ｋｃａｌ）／ｋｇであるが、倍量の水を吸水した後においても、燃焼不良にはならない。
本例の動物用シーツにおいては、例えば吸収性シーツの事例を示す図１４を参照して分かるように、下部吸水紙２の端部７は中間吸水紙１９の端部２２の上に折り曲げ重ねられており、下部吸水紙２の端部７で中間吸水紙１９の端部２２を押さえて、下部吸水性混合層部１８の混合物粉砕物を両吸水紙間に安定して保持している。
【００６３】
例１７
図２２は、図９に示した動物用シーツを製造する実施例の工程を示している。
本例において、動物用シーツ１１は、幅３４０ｍｍ、長さ４００ｍｍの下部吸水紙２（１．７ｇ）と幅２８０ｍｍ、長さ４００ｍｍの上部吸水紙４（１．４ｇ）上部吸水紙４の間には、プラスチック類（５６重量％）、パルプ類（４０重量％）及び高吸水性樹脂（４重量％）を含む不良紙おむつの分級品の４ｍｍ以下の粉砕物（２５ｇ）が、吸水性混合層部３として配置されており、この吸水性混合層部３の粉砕物の上部には、界面活性剤が噴霧等による塗布により付着している。前記上部吸水紙４、下部吸水紙２及び吸水性混合層部３は、上面にエンボス加工により、板状に圧縮成形されて一体に形成されている。吸収体１の上部吸水紙４の上面はポリプロピレン製の不織布１３で被われており、吸収体１の下部吸水紙２の下面はポリエチレンフィルム１２で被われている。
下部吸水紙２のロール２５は、吸水紙送り出しローラ２６により引き出されて、不良紙おむつの比較的プラスチックに富む分級物粉砕物２７の供給ローラ２８の下方に送られる。不良紙おむつの比較的プラスチックに富む分級物粉砕物２７は、供給管２９を経て、粉砕機３０で４ｍｍ以下の粒度に粉砕されて、不良紙おむつの比較的プラスチックに富む分級品粉砕物２７として、供給ローラ３０から下部吸水紙２の上に供給され、吸水性混合層部３を形成する。本例において、前記不良紙おむつのプラスチックに富む分級品粉砕物２７は、プラスチック類の含有率が５６重量％であり、パルプ類の含有率が４０重量％であり、また高吸水性樹脂の含有率が４重量％であった。不良紙おむつのプラスチックに富む分級品粉砕物２７の下部吸水紙２の上への供給は、下部吸水紙２上に不良紙おむつのプラスチックに富む分級品粉砕物の量が一定となるように調整される。不良紙おむつのプラスチックに富む分級粉砕物２７が供給された下部吸水紙２は、界面活性剤３１の噴霧箇所３２に送られて、界面活性剤３１の噴霧器３３から界面活性剤３１が下部吸水紙２上の不良紙おむつ分級品のプラスチックに富む粉砕物上に噴霧される。
界面活性剤３１が噴霧された下部吸水紙２は、上部吸水紙４の供給箇所３４に送られて、上部吸水紙４のロール３５から、引き出しローラ３６により引き出され、供給ローラ３７から界面活性剤３１が噴霧された紙おむつ分級品のプラスチックに富む粉砕物上に供給される。下部及び上部吸水紙２及び４が配置された帯状成層物は、成型機３８に送られて下部吸水紙２の端部７、上部吸水紙４の端部８脳絵に重ねられて、エンボス加工により一体に圧縮成形される。エンボスによる凹凸模様が形成された帯状成層成形体３９は、帯状成形体カッター４０に送られて、長さ４００ｍｍの成層成形体に切断される。帯状成形体カッター４０により切断されて得られた成層成形体の下方には、下方からバックフィルム用のポリエチレンフィルム１２がポリエチレンフィルム１２のロール４１から供給ローラ４２から供給され、成層成形体はポリエチレンフィルム１２の上に載せられて、ポリプロピレン不織布１３を被せる箇所４３に送られる。
ポリプロピレン不織布１３は、ポリプロピレン不織布１３のロール４４から供給ローラ４５により引き出されて、不織布１３を供給する箇所に送られる。この不織布が送られる過程で、ホットメルト接着剤が噴霧器４６から噴霧される。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１３は、成層成形体上に載せられる。ポリプロピレン不織布１３が載せられた成層成形体は、サイドシール機４７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成層成形体は、エンドシール機４８に送られて長手方向両端部が接着され、製品カッター４９に送られ、所定の寸法に切断されて、製品は、製品送り路５０から送られる。製品カッター４９で切断された製品は、折り機（図示されていない）によって折られ、包装機（図示されていない）により包装されて出荷される。
【００６４】
例１８
図２３は、図１７に示す本発明の実施例の動物用シーツを製造する工程の一実施例の工程図を示している。本例において、重量（グラム）は動物用シーツ一枚当たりの重量を示す。
本例の動物用シーツ１１には、吸収体１の、幅３４０ｍｍ、長さ４００ｍｍの下部吸水紙２（１．７ｇ）の下に、ポリエチレンフィルム１２（２．５ｇ）が配置されおり、該吸収体１の、幅２８０ｍｍ、長さ４００ｍｍの上部吸水紙４（１．４ｇ）の上には、該上部吸水紙４の上を覆って、ポリプロピレン不織布１３（２．４ｇ）が配置されており、前記ポリプロピレン不織布１３の端部１４は、前記ポリエチレンフィルム１２の端部１５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いる。本例における吸収体１は、前記上部吸水紙４及び下部吸水紙２の間に、幅２８０ｍｍ、長さ４００ｍｍの中間吸水紙８（１．４ｇ）が配置されている。
本例において、前記下部吸水紙２と中間吸水紙１９の間には、ポリエチレンフィルム１６重量％含有のラミネート加工紙屑１０重量％、新聞紙屑１５重量％、段ボール屑１５重量％、プラスチックフィルム屑５５重量％及び高吸水性樹脂５重量％を含む下部紙廃材混合物５１（２０ｇ）を３ｍｍ以下の粒度に粉砕して形成した下部紙廃材粉砕物混合物層が配置されて、下部吸水性混合層部１８が形成されており、また、上部吸水紙４と中間吸水紙１９の間には、ポリエチレンフィルム１６重量％含有のラミネート加工紙屑１０重量％、新聞紙屑１５重量％、段ボール屑１５重量％、プラスチックフィルム屑５５重量％及び高吸水性樹脂５重量％を含む上部紙廃材粉砕物混合物２３（１０ｇ）を３ｍｍ以下の粒度に粉砕した上部紙廃材粉砕物混合層部２３が配置されて、上部吸水性混合層部２０が形成されている。
【００６５】
例１９
図２３において、下部吸水性紙層部を形成する下部吸水紙２のロール２５は、下部吸水紙２の送り出しローラ２６により引き出されて、下部吸水性混合層部１８を形成するために、下部紙廃材粉砕物混合物１６の供給ローラ５２の下方に送られる。下部紙廃材混合物５１は、供給管５３を経て、粉砕機５４で３ｍｍ以下の粒度に粉砕されて、下部紙廃材粉砕物混合物１６として、供給ローラ５２から下部吸水紙２の上に供給される。本例において、下部紙廃材粉砕物混合物１６は、ポリエチレンフィルム１６重量％含有のラミネート加工紙屑１０重量％、新聞紙屑１５重量％、段ボール屑１５重量％、プラスチックフィルム屑５５重量％及び高吸水性樹脂５重量％を含み、３ｍｍ以下の粒度に粉砕した紙廃材混合物粉砕物の重量は、２０重量部であった。この粉砕された下部紙廃材粉砕物混合物は、下部吸水紙２の上で、前記下部廃材混合物粉砕物の量が一定となるように、供給ローラ５２から下部吸水紙２の上に供給されて下部吸水性混合層部１８を形成する。下部吸水性混合層部１８が形成された下部吸水紙２は、界面活性剤の噴霧箇所５５に送られて、界面活性剤噴霧器５６から界面活性剤の７５倍に水で希釈された界面活性剤の希釈水溶液５７が、下部吸水紙２の上に形成された下部吸水性混合層部１８上に噴霧される。界面活性剤希釈水溶液５７が噴霧された下部吸水性混合層部１８は下部吸水紙２と共に、中間吸水性紙層部を形成する中間吸水紙１９の供給箇所６０に送られる。一方、中間吸水紙１９は、中間吸水紙１９のロール６１から、中間吸水紙１９の供給箇所６０に送られ、そこで、中間吸水紙１９の供給ローラ６２に案内されて、高吸水性樹脂１７が散布された下部吸水性混合層部１８の上に、中間吸水紙１９が載置される。前記下部吸水性混合層部１８の上に中間吸水紙１９が配置された下部吸水紙２は、折り畳み器（図示されていない）を経て、エンボス加工用圧縮機６３に送られ、そこで下部吸水紙２の幅方向両端部７を中間吸水紙１９の端部２２の上方に折り曲げて、次いで圧縮され、中間吸水紙１９を安定させる。下部吸水紙２の端部７を中間吸水紙１９の端部２２の上に折り曲げた下部吸水紙２は、上部吸水性混合層部２０を形成するために、上部紙廃材混合物７１の粉砕物供給ローラ７２の下方に送られる。上部紙廃材混合物７１は、供給管７３を経て、粉砕機７４に送られ、粉砕機７４で３ｍｍ以下の粒度に粉砕されて、上部紙廃材粉砕物混合物として、供給ローラ７２から中間吸水紙１９及び下部吸水紙２の幅方向両端部の上に供給される。本例において、上部紙廃材粉砕物混合物の組成は、下部吸水性混合層部１８の下部紙廃材粉砕物混合物１６と同様に、ポリエチレンフィルム１６重量％含有のラミネート加工紙屑１０重量％、新聞紙屑１５重量％、段ボール屑１５重量％、プラスチックフィルム屑５５重量％及び高吸水性樹脂５重量％を含み、この上部紙廃材粉砕物混合物２３の重量は、１０重量部であった。この３ｍｍ以下の粒度に粉砕された上部紙廃材粉砕物混合物は、中間吸水紙１９の上で、上部紙廃材粉砕物混合物の量が一定となるように、供給ローラ７２から中間吸水紙１９及び下部吸水紙２の幅方向両端部７の上に供給されて上部吸水性混合層部２０を形成する。上部吸水性混合層部２０が形成された下部吸水紙２は、界面活性剤の噴霧箇所６６に送られて、界面活性剤噴霧器６７から界面活性剤の７５倍に希釈された界面活性剤の希釈水溶液６８が、中間吸水紙１９及び下部吸水紙２の幅方向両端部７の上に形成された上部吸水性混合層部２０に噴霧される。界面活性剤希釈水溶液６８が噴霧された上部吸水性混合層部２０は下部吸水紙２と共に、上部吸水紙４の供給箇所３４に送られ、そこで、上部吸水紙４が載せられる。上部吸水紙４は、上部吸水紙４のロール３５から、引き出しローラ３６を介して引き出され、供給ローラ３７により、高吸水性樹脂２４が散布された上部吸水性混合層部２０上に供給され、配置される。下部吸水紙２の上に、下部吸水性混合層部１８、中間吸水紙１９、上部吸水性混合層部２０及び上部吸水紙４がその順に配置された帯状成層成形体は、エンボス加工機３８に送られ成形されて、エンボスによる凹凸模様が形成される。前記帯状成層成形体に前記凸部５及び凹部６が形成された帯状成層成形体は、帯状成形体カッター４０に送られて、長さ４００ｍｍの成層成形体に切断される。帯状成形体カッター４０により切断された成層成形体の下方には、下方からバックフィルム用のポリエチレンフィルム１２がポリエチレンフィルム１２のロール４１から引き出されて、供給ローラ４２から供給され、成層成形体はポリエチレンフィルム１２の上に載せられて、ポリプロピレン不織布１３を被せる箇所４５に送られる。
ポリプロピレン不織布１３は、ポリプロピレン不織布１３のロール４４から送られ、途中ホットメルト接着剤が噴霧器４６から噴霧される。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１３は、成層成形体上に載せられる。ポリプロピレン不織布１３が載せられた成層成形体は、サイドシール機４７に送られて、不織布１３の幅方向両側端部１４及びポリエチレンフィルム１２の幅方向両側端部１５は、圧着されて、ホットメルト接着剤により接着される。両側端部が接着された成層成形体は、エンドシール機４８に送られて長手方向両端部が接着され、製品カッター４９に送られ、所定の寸法に切断されて、製品とされ、この製品は、製品送り路５０から送られる。製品カッター４９で切断された製品は、折り機（図示されていない）によって折られ、包装機（図示されていない）により包装されて出荷される。
【００６６】
例２０
本例は、図２３に示す製造工程を適用して、図１６に示す吸収性マツトを製造することができる。本例において、示される重量は、吸収性マット一枚当たりの重量である。
本例の吸収性マツト１１には、吸収体１の幅３４０ｍｍ、長さ４００ｍｍの下部吸水紙２（１．７ｇ）の下に、約５〜７ｍｍの径の円形の孔２１が１０〜３０％の開口面積で形成されているポリエチレンフィルム１２（２．５ｇ）が配置されおり、該吸収体１の幅２８０ｍｍ、長さ４００ｍｍの上部吸水紙４（１．４ｇ）の上には、該上部吸水紙４の上を覆って、ポリプロピレン不織布１３（２．４ｇ）が配置されており、前記ポリプロピレン不織布１３の端部１４は、前記ポリエチレンフィルム１２の端部１５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いる。本例における吸収体１は、前記上部吸水紙４及び下部吸水紙２の間に、幅２８０ｍｍ、長さ４００ｍｍの中間吸水紙１９（１．４ｇ）が配置されている。
本例において、前記下部吸水紙２と中間吸水紙１９の間には、プラスチック材料３５重量％、パルプ材料５０重量％及び高吸水性樹脂１５重量％を含む不良紙おむつ２７を３ｍｍ以下の粒度に粉砕した不良紙おむつ廃材粉砕物の２０ｇが下部吸水性混合層部１８として充填されており、また、上部吸水紙４と中間吸水紙１９の間には、前記不良紙おむつ廃材粉砕物の１０ｇが充填されて、上部吸水性混合層部２０を形成している。
図１６に示す実施例の吸収性マツト１１を製造する場合は、図１７に示す実施例の動物用シーツ１１と同様の製造工程により製造されるが、吸収性マット１１を製造する場合には、図２４に示す実施例の動物用シーツ１１を製造する場合に比して、唯、吸収体１の下に配置されるバックフィルム用のポリエチレンフィルム１２に、約５〜７ｍｍの径の円形の孔１１が３０〜４０％の開口面積で形成されている点で相違するにすぎない。
【００６７】
例２１
図２４は、図１８及び図１９に示す本発明の実施例の動物用シーツを製造する工程の一実施例の工程図を示している。本例において、重量（グラム）は動物用シーツ一枚当たりの重量を示す。
本例の動物用シーツ１１には、吸収体１の、幅３４０ｍｍ、長さ４００ｍｍの下部吸水紙２（１．７ｇ）の下に、ポリエチレンフィルム１２（２．５ｇ）が配置されおり、該吸収体１の、幅２８０ｍｍ、長さ４００ｍｍの上部吸水紙４（１．４ｇ）の上には、該上部吸水紙４の上を覆って、ポリプロピレン不織布１３（２．４ｇ）が配置されており、前記ポリプロピレン不織布１３の端部１４は、前記ポリエチレンフィルム１２の端部１５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いる。本例における吸収体１は、前記上部吸水紙４及び下部吸水紙２の間に、幅２８０ｍｍ、長さ４００ｍｍの中間吸水紙８（１．４ｇ）が配置されている。
本例において、前記下部吸水紙２と中間吸水紙１９の間には、ポリエチレンフィルム１６重量％含有のラミネート加工紙屑１０重量％、新聞紙屑１５重量％、段ボール屑１５重量％及びプラスチックフィルム屑５５重量％を含む下部紙廃材混合物５１（２０ｇ）を３ｍｍ以下の粒度に粉砕して形成した下部紙廃材粉砕物混合物層１６に、５重量％の高吸水性樹脂１７が散布して、下部吸水性混合層部１８が形成されており、また、上部吸水紙４と中間吸水紙１９の間には、ポリエチレンフィルム１６重量％含有のラミネート加工紙屑１０重量％、新聞紙屑１５重量％、段ボール屑１５重量％及びプラスチックフィルム屑５５重量％を含む上部紙廃材粉砕物混合物２３（１０ｇ）を３ｍｍ以下の粒度に粉砕した上部紙廃材粉砕物混合層部２３に高吸水性樹脂２４の５重量％が散布されて、上部吸水性混合層部２０が形成されている。
【００６８】
例２２
図２４において、下部吸水性紙層部を形成する下部吸水紙２のロール２５は、下部吸水紙２の送り出しローラ２６により引き出されて、下部吸水性混合層部１８を形成するために、下部紙廃材粉砕物混合物１６の供給ローラ５２の下方に送られる。下部紙廃材混合物５１は、供給管５３を経て、粉砕機５４で３ｍｍ以下の粒度に粉砕されて、下部紙廃材粉砕物混合物１６として、供給ローラ５２から下部吸水紙２の上に供給される。本例において、下部紙廃材粉砕物混合物１６は、ポリエチレンフィルム１６重量％含有のラミネート加工紙屑１０重量％、新聞紙屑１５重量％、段ボール屑１５重量％及びプラスチックフィルム屑５５重量％を含み、３ｍｍ以下の粒度に粉砕した紙廃材混合物粉砕物１６の重量は、２０ｇであった。この粉砕された下部紙廃材粉砕物混合物１６は、下部吸水紙２の上で、下部廃材混合物粉砕物１６の量が一定となるように、供給ローラ５２から下部吸水紙２の上に供給されて下部吸水性混合層部１８を形成する。下部吸水性混合層部１８が形成された下部吸水紙２は、界面活性剤の噴霧箇所５５に送られて、界面活性剤噴霧器５６から界面活性剤の７５倍に水で希釈された界面活性剤の希釈水溶液５７が、下部吸水紙２の上に形成された下部吸水性混合層部１８上に噴霧される。下部吸水性混合層部１８に界面活性剤希釈水溶液５７が噴霧された下部吸水紙２は、高吸水性樹脂１７の散布箇所５８に送られ、そこで高吸水性樹脂散布装置５９から、高吸水性樹脂１７が散布され、散布された高吸水性樹脂１７は、一部が、界面活性剤希釈水溶液５７が噴霧された部分に付着し、他の一部が移動して下部紙廃材粉砕物混合物１６内に混入する。高吸水性樹脂１７が散布されて下部紙廃材粉砕物混合物１６中に混入された下部吸水性混合層部１８は、下部吸水紙２と共に、中間吸水性紙層部を形成する中間吸水紙１９の供給箇所６０に送られる。一方、中間吸水紙１９は、中間吸水紙１９のロール６１から、中間吸水紙１９の供給箇所６０に送られ、そこで、中間吸水紙１９の供給ローラ６２に案内されて、中間吸水紙１９が、高吸水性樹脂１７が散布された下部吸水性混合層部１８の上に載せられる。前記下部吸水性混合層部１８の上に中間吸水紙１９が配置された下部吸水紙２は、折り畳み器（図示されていない）を経て、圧縮機６３に送られ、そこで下部吸水紙２の幅方向両端部７を中間吸水紙１９の端部２２の上方に折り曲げて、加圧され、中間吸水紙１９を安定させる。下部吸水紙２の端部７を中間吸水紙１９の端部２２の上に折り曲げた下部吸水紙２は、上部吸水性混合層部２０を形成するために、上部紙廃材粉砕物混合物２３の供給ローラ６５の下方に送られる。上部紙廃材混合物６４は、供給管５３′を経て、粉砕機５４′に送られ、粉砕機５４′で３ｍｍ以下の粒度に粉砕されて、上部紙廃材粉砕物混合物２３として、供給ローラ６５から中間吸水紙１９及び下部吸水紙２の幅方向両端部の上に供給される。本例において、上部紙廃材粉砕物混合物２３の組成は、下部吸水性混合層部１８の下部紙廃材粉砕物混合物１６と同様に、ポリエチレンフィルム１６重量％含有のラミネート加工紙屑１０重量％、新聞紙屑１５重量％、段ボール屑１５重量％及びプラスチックフィルム屑５５重量％を含み、この上部紙廃材粉砕物混合物２３の重量は、１０ｇであった。この３ｍｍ以下の粒度に粉砕された上部紙廃材粉砕物混合物２３は、中間吸水紙１９の上で、上部紙廃材粉砕物混合物２３の量が一定となるように、供給ローラ６５から中間吸水紙１９及び下部吸水紙２の幅方向両端部７の上に供給されて上部吸水性混合層部２０を形成する。上部吸水性混合層部２０が形成された下部吸水紙２は、界面活性剤の噴霧箇所６６に送られて、界面活性剤噴霧器６７から界面活性剤の７５倍に希釈された界面活性剤の希釈水溶液６８が、中間吸水紙１９及び下部吸水紙２の幅方向両端部７の上に形成された上部吸水性混合層部２０に噴霧される。上部吸水性混合層部２０に界面活性剤希釈水溶液６８が噴霧された下部吸水紙２は、高吸水性樹脂２４の散布箇所６９に送られ、高吸水性樹脂散布装置７０から、高吸水性樹脂２４が散布され、この散布された高吸水性樹脂２４は、一部が、界面活性剤希釈水溶液６８が噴霧された部分に付着し、他の一部が移動して上部紙廃材粉砕物混合物２３内に混入する。散布された高吸水性樹脂２４の一部が混入された上部吸水性混合層部２０は、下部吸水紙２と共に、上部吸水紙４の供給箇所３４に送られ、そこで、上部吸水紙４が載せられる。上部吸水紙４は、上部吸水紙４のロール３５から、引き出しローラ３６を介して引き出され、供給ローラ４５により、高吸水性樹脂２４が散布された上部吸水性混合層部２０上に供給され、配置される。下部吸水紙２の上に、下部吸水性混合層部１８、中間吸水紙１９、上部吸水性混合層部２０及び上部吸水紙４がその順に配置された帯状成層物は、エンボス加工成型機３８に送られ成形されて、概略２ｍｍの複数の凸条を有するエンボスによる凹凸模様が形成される。前記帯状成層物に前記エンボスによる凹凸模様が形成された帯状成層成形体は、帯状成形体カッター４０に送られて、長さ４００ｍｍの成層成形体に切断される。帯状成成層形体を切断して得られた成層成形体の下方には、下方からバックフィルム用のポリエチレンフィルム１２がポリエチレンフィルム１２のロール４１から引き出されて、供給ローラ４２から供給され、成層成形体はポリエチレンフィルム１２の上に載せられて、ポリプロピレン不織布１３を被せる箇所４５に送られる。
ポリプロピレン不織布１３は、ポリプロピレン不織布１３のロール４４から送られ、途中ホットメルト接着剤が噴霧器４６から噴霧される。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１３は、成層成形体上に載せられる。ポリプロピレン不織布１３が載せられた成層成形体は、サイドシール機４７に送られて、不織布１３の幅方向両側端部１４及びポリエチレンフィルム１２の幅方向両側端部１５は、圧着されて、ホットメルト接着剤により接着される。両側端部が接着された成層成形体は、エンドシール機４８に送られて長手方向両端部が接着され、製品カッター４９に送られ、所定の寸法に切断されて、製品とされ、この製品は、製品送り路５０から送られる。製品カッター４９で切断された製品は、折り機（図示されていない）によって折られ、包装機（図示されていない）により包装されて出荷される。
【００６９】
例２３
図２５は、本発明の図２０及び２１に示す動物用シーツを製造する工程の一実施例の工程図を示している。本例において、示される重量は、動物用シーツ一枚当たりの重量である。
本例の動物用シーツ１１には、吸収体１の幅３４０ｍｍ、長さ４００ｍｍの下部吸水紙２（１．７ｇ）の下に、ポリエチレンフィルム１２（２．５ｇ）が配置されおり、該吸収体１の幅２８０ｍｍ、長さ４００ｍｍの上部吸水紙４（１．４ｇ）の上には、該上部吸水紙４の上を覆って、ポリプロピレン不織布１３（２．４ｇ）が配置されており、前記ポリプロピレン不織布１３の端部１４は、前記ポリエチレンフィルム１２の端部１５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いる。本例における吸収体１は、前記上部吸水紙４及び下部吸水紙２の間に、幅２８０ｍｍ、長さ４００ｍｍの中間吸水紙８（１．４ｇ）が配置されている。
本例において、前記下部吸水紙２と中間吸水紙１９の間には、ポリエチレンフィルム１６重量％含有のラミネート加工紙屑１０重量％、新聞紙屑１５重量％、段ボール屑１５重量％、プラスチックフィルム屑５５重量％及び高吸水性樹脂５重量％を含み、３ｍｍ以下の粒度に粉砕された紙おむつ廃材混合物粉砕物（２５．６ｇ）が下部吸水性混合層部１８として充填されており、また、上部吸水紙４と中間吸水紙１９の間には、高吸水性樹脂（２ｇ）が充填されて、上部吸水性混合層部２０を形成している。
【００７０】
図２５において、下部吸水性紙層部を形成する下部吸水紙２のロール２５は、下部吸水紙２の送り出しローラ２６により引き出されて、紙おむつ廃材混合物粉砕物２７の供給ローラ２８の下方に送られる。紙おむつ廃材２７は、供給管２９を経て、粉砕機３０で３ｍｍ以下の粒度に粉砕されて、紙おむつ廃材混合物粉砕物２７として、供給ローラ２８から下部吸水紙２の上に供給される。紙おむつ廃材混合物粉砕物１６は、ポリエチレンフィルム１６重量％含有のラミネート加工紙屑１０重量％、新聞紙屑１５重量％、段ボール屑１５重量％、プラスチックフィルム屑５５重量％及び高吸水性樹脂５重量％を含有する。この粉砕された紙おむつ廃材混合物粉砕物１６は、下部吸水紙２の上で、紙おむつ廃材混合物粉砕物１６の量が一定となるように、供給ローラ２８から下部吸水紙２の上に供給されて下部吸水性混合層部１８を形成する。下部吸水性混合層部１８が形成された下部吸水紙２は、中間吸水性紙層部を形成する中間吸水紙１９の供給箇所６０に送られる。一方、中間吸水紙１９は、中間吸水紙１９のロール６１から、中間吸水紙１９の供給箇所６０に送られ、そこで、中間吸水紙１９の供給ローラ６２に案内されて、中間吸水紙１９が下部吸水性混合層部１８の上に載せられる。前記下部吸水性混合層部１８の上に中間吸水紙１９が配置された下部吸水紙２は、折り畳み器（図示されていない）を経由して圧縮機６３に送られ、そこで下部吸水紙２は、端部７が中間吸水紙の端部２２の上に折り畳まれて加圧され圧縮されて、下部吸水紙２の端部７を中間吸水紙１９の端部２２の上方に折り曲げて、中間吸水紙１９を安定させる。下部吸水紙２の端部７を中間吸水紙１９の端部２２の上に折り曲げられ圧縮された下部吸水紙２は、界面活性剤６８の噴霧箇所６６に送られて、界面活性剤噴霧器６７から界面活性剤６８が、中間吸水紙１９の上に噴霧される。界面活性剤が噴霧された中間吸水紙１９は、高吸水性樹脂２４が高吸水性樹脂供給箇所６９に送られて、高吸水性樹脂散布装置７０から、高吸水性樹脂６８が散布され、高吸水性樹脂６８のみにより上部吸水性混合層部２０が形成される。高吸水性樹脂６８が散布されて中間吸水紙１９の上に上部吸水性混合層部２０が形成された下部吸水紙２は、上部吸水紙４の供給箇所３４に送られ、そこで、上部吸水紙４が載せられる。上部吸水紙４は、上部吸水紙４のロール３５から、送り出しローラ３６により、高吸水性樹脂２４が散布された上部吸水性混合層部２０上に供給される。下部吸水紙２の上に、中間吸水紙１９及び上部吸水紙４が配置された帯状成層物は、エンボス加工成型機３８に送られてそこで成形され、概略２ｍｍ以下の幅の凸条で形成されるエンボスによる凹凸模様が形成され、該エンボスによる凹凸模様が形成された帯状成層成形体は、帯状成形体カッター４０に送られて、長さ４５０ｍｍの成層成形体に切断される。帯状成形体カッター４０により切断されて得られた成層成形体の下方には、下方からバックフィルム用のポリエチレンフィルム１２がポリエチレンフィルム１２のロール４１から引き出されて、供給ローラ４２から供給され、成層成形体はポリエチレンフィルム１２の上に載せられて、ポリプロピレン不織布１３を被せる箇所６９に送られる。
ポリプロピレン不織布１３は、ポリプロピレン不織布１３のロール４４から送られ、途中ホットメルト接着剤が噴霧器４６から噴霧される。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１３は、成層成形体上に載せられる。ポリプロピレン不織布１３が載せられた成層成形体は、サイドシール機４７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成層成形体は、エンドシール機４８に送られて長手方向両端部が接着され、製品カッター４９に送られ、所定の寸法に切断されて、製品は、製品送り路５０から送られる。製品カッター４９で切断された製品は、折り機（図示されていない）によって折られ、包装機（図示されていない）により包装されて出荷される。
【００７１】
【発明の効果】
本発明において、吸収体は、上面を形成する上部吸収性紙層部と、下面を形成する下部吸収性紙層部と、前記上部及び下部紙層部間に、上部が界面活性剤溶液で処理されたプラスチック廃材粉砕物、パルプ廃材粉砕物及び吸水性樹脂を含む吸水性混合層部を備えるので、プラスチック廃材含有率が高くなっても、吸収体及びシーツの水の吸収速度を比較的高くでき、例えば床の上に配置して、床に水滴が落ちても、床を乾いた状態に保つことができる。したがって、例えば床等に配置して、床の水に濡れるのを防止でき、また露天のイベント会場の場合には、通路に敷くことにより、雨天の日でも通路を乾いた状態に維持でき、来場した人達に通路の濡れによる不快感を与えることなく、またさらにシーツに使用して、人又は動物が、弾力性を有し、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。
本発明においては、吸収体は、プリクラロール、感熱紙、セロハン、木材パルプ、古紙パルプ、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等の衛生材料廃材を吸収体原料とするので、使用後の尿及び汗等の水分により、吸収体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、使用後の吸収体の燃焼熱を高めることができ、使用後の吸収体の燃焼不良を解消することができ、吸収体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、衛生材料廃材の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一層の吸水性混合層部を有する吸収体の断面構造の概略を示す概略の部分断面図である。
【図２】図１に示す実施例の吸収体の断面構造を有する、本発明の一実施例の吸収体についての幅方向の概略の断面構造を示す断面図である。
【図３】前記図１に示す実施例の吸収体の断面構造を有する本発明の他の一実施例の吸収体についての幅方向の概略の断面構造を示す断面図である。
【図４】前記図１又は図４に示す実施例の吸収体の断面構造を有するが、図２及び３に示す実施例の吸収体とは異なる本発明の他の一実施例の吸収体についての幅方向の概略の断面構造を示す断面図である。
【図５】前記図１に示す実施例の吸収体を使用した本発明の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図６】前記図１に示す断面構造を有する本発明の一実施例の吸収体を使用する本発明の一実施例の吸水性マットについての概略の断面構造を示す概略の部分断面図である。
【図７】前記図２に示す本発明の実施例の吸収体を使用する本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図８】前記図３に示す本発明の実施例の吸収体を使用する本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図９】前記図３に示す実施例の吸収体を使用する本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図１０】前記図４に示す実施例の吸収体を使用する本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図１１】前記図７に示す実施例の動物用シーツの吸水性混合層部を、吸水性樹脂を偏在させた吸水性混合層部とした本発明の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図１２】前記図９に示す実施例の動物用シーツの吸水性混合層部を、吸水性樹脂を偏在させた吸水性混合層部とした本発明の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図１３】前記図１０に示す実施例の動物用シーツにおける吸水性混合層部を、吸水性樹脂を偏在させた吸水性混合層部とした本発明の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図１４】本発明の他の一実施例の上下二層の吸水性混合層部を有する吸収体の断面構造の概略を示す概略の部分断面図である。
【図１５】前記図５に示す実施例の吸収体を使用する動物用シーツについての概略の断面構造を示す概略の部分断面図である。
【図１６】前記図１５に示す実施例の断面構造を有する動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図１７】前記図１５に示す実施例の断面構造を有する動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図１８】前記図１６に示す実施例の動物用シーツにおける吸水性混合層部を、吸水性樹脂が偏在する吸水性混合層部とした本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図１９】前記図１７に示す実施例の動物用シーツにおける吸水性混合層部を、吸水性樹脂が偏在する吸水性混合層部とした本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図２０】吸水性樹脂で形成された上部吸収性混合層部を有する吸収体を使用した本発明の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図２１】吸水性樹脂で形成された上部吸収性混合層部を有する吸収体を使用した図２０とは異なる本発明の他の一実施例の動物用シーツについての幅方向の概略の断面構造を示す概略の部分断面図である。
【図２２】前記図９及び図１０に示す動物用シーツを製造する工程の概略を示す概略の工程図である。
【図２３】前記図２２、図１６及び図１７に示す本発明の実施例の動物用シーツを製造する工程を示す概略の工程図である。
【図２４】前記図１８及び１９に示す本発明の実施例の動物用シーツを製造する工程を示す概略の工程図である。
【図２５】前記図２０び２１に示す本発明の実施例の動物用シーツ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吸収体
２下部吸収紙
３吸水性混合層部
４上部吸収紙
５上面
６下面
７、９下部吸収紙の幅方向端部
８、１０上部吸収紙の幅方向端部
１１動物用シーツ、吸水性マット又は包装材料
１２プラスチックフィルム、ポリエチレンフィルム
１３不織布、ポリプロピレン不織布
１４不織布１３の端部
１５プラスチックフィルム１２の端部
１６紙廃材混合物粉砕物
１７、２４吸水性樹脂
１８下部吸水性混合層部
１９中間吸水性混合層部
２０上部吸水性混合層部
２１プラスチック廃材粉砕物と紙廃材粉砕物の混合物
２２中間吸収紙の幅方向の端部
２３上部紙廃材粉砕物混合物
２５下部吸収紙２のロール
２６吸水紙引き出しローラ
２７不良紙おむつ分級品又は紙おむつ廃材粉砕物混合物
２８不良紙おむつ分級品の供給ローラ
２９不良紙おむつ分級品の供給管
３０不良紙おむつ分級品の粉砕機
３１界面活性剤
３２界面活性剤３１の噴霧箇所
３３界面活性剤３１の噴霧器
３４上部吸水紙４の供給箇所
３５上部吸水紙４のロール
３６上部吸水紙４の引き出しローラ
３７上部吸水紙４の供給ローラ
３８エンボス加工成型機
３９帯状成層体
４０帯状成形体カッター
４１ポリエチレンフィルム１２のロール
４２ポリエチレンフィルム１２の供給ローラ
４３ポリプロピレン不織布１３を被せる箇所
４４ポリプロピレン不織布１３のロール
４５ポリプロピレン不織布１３の供給ローラ
４６ホットメルト接着剤の噴霧器
４７サイドシール機
４８エンドシール機
４９製品カッター
５０製品送り路
５１下部紙廃材
５２下部紙廃材粉砕物混合物１６の供給ローラ
５３下部紙廃材混合物５１の供給管
５３′ 上部紙廃材混合物６４の供給管
５４下部紙廃材混合物５１の粉砕機
５４′ 上部紙廃材混合物６４の粉砕機
５５界面活性剤希釈水溶液噴霧箇所
５６界面活性剤希釈水溶液の噴霧器
５７界面活性剤希釈水溶液
５８高吸水性樹脂の散布箇所
５９高吸水性樹脂の散布機
６０中間吸水紙１９の供給箇所
６１中間吸水紙１９のロール
６２中間吸水紙１９の供給ローラ
６３圧縮機
６４上部紙廃材混合物
６５上部紙廃材混合物６５の供給ローラ
６６界面活性剤希釈水溶液６８の噴霧箇所
６７界面活性剤希釈水溶液６８のの噴霧器
６８界面活性剤希釈水溶液
６９高吸水性樹脂２４の散布箇所
７０高吸水性樹脂散布装置
７１不良紙おむつ廃材
７２不良紙おむつ廃材粉砕物
７３紙廃材混合物の供給管
７４紙廃材混合物の粉砕機[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an absorbent body, and in particular, uses plastic waste and paper waste, and can be used as thin or thick rugs or packaging materials such as sheets, mats, or sheets, and has an absorption function and / or humidity such as water retention. The present invention relates to a thin or thick absorber having an adjustment function.
[0002]
As a rug in which the absorbent body using the plastic waste material and paper waste material of the present invention is used, in the case of rain, a water-absorbing mat for preventing floor wetness due to rain on a rainy day in an event venue without a roof, Water-absorbing mats for preventing wet floors of vehicles such as cars, trains or airplanes on rainy days, water-absorbing mats for floors of rainy day hospitals, service areas, department stores, hotels, stores, office buildings or leisure facilities Mats, water-absorbing mats for preventing wetting in refrigerators, water-absorbing mats for preventing wetting of kitchen floors, as well as absorbent sheets, water supply facilities, hot water supply facilities or toilets for drip absorption of kitchen garbage or kitchen garbage Or water-absorbing mats for preventing floor wetting with sanitary instruments such as toiletries, water-absorbing mats for preventing floor wetting around refrigerators, oil-absorbing for gas stations or kitchens Mat, leisure mat or massage therapy for sheets, as well as such as the betting auxiliary mat. In addition to this, as a packaging sheet in which the absorbent body is used, a packaging material having a water retention or humidity conditioning function for vegetables, fruits and flowers, fresh fish, raw meat, prepared foods, a lunch box, etc. As well as packaging materials for seeds, strains, seedlings or bulbs. In addition to the above, the cleaning sheet in which the absorber is used is for cleaning machinery and windows, and for wiping condensation and wetness on the ceiling, walls, floors, windows, etc. of buildings. There are water-absorbing mats or water-absorbing sheets used as waste cloths or cloths.
[0003]
Further, the absorbent body of the present invention can be used as a disposable absorbent body for preventing water evaporation at the time of cultivation of horticultural plants or for treating waste oil due to oil absorption, and the absorbent body of the present invention is a water absorbent inside a sheet. The absorbent body of the present invention can be used for a layer part and a disposable absorbent mat or a water absorbent layer part of a water absorbent mat, and the absorbent body of the present invention is a water absorbent member for disposable sanitary materials such as disposable diapers, urine pads, and sanitary napkins. Furthermore, the absorbent body of the present invention can be used as a water-absorbing member for excrement disposal materials for pets such as animal sheets and pet sheets. Furthermore, the absorbent body of the present invention can transport frozen marine products. Water-absorbing sheet for preventing marine products from getting wet with defrosted water, water-absorbing sheet for preventing water evaporation covering potted plant, water-absorbing sheet laid under potted plant, water-absorbing sheet placed around the water tank Can be used as a water-absorbent sheet for use in sheet and dew condensation prevention sheets, and also used as a water-absorbing mat for absorbing water drops falling from umbrellas, etc. can do. In addition, the absorbent body of the present invention can be used as a mat for a vehicle head cover or as a mat for preventing dampness in a helmet or a hat, and further, for example, as a toilet paper sheet after defecation in a washlet toilet.
[0004]
[Prior art]
Conventionally, for example, floor wetness has been wiped using cloth cloths or disposable cloth cloths, or stick cloths with various absorbent bodies such as cloth cloths, waste cloths, sponges, etc. In places that get wet with water or the like, a water-absorbing mat is laid to prevent the floor from getting wet.
On the other hand, disposable sheets for humans and animals are provided with an upper water-absorbent paper layer portion in contact with the inside of the water-impermeable membrane, and in contact with the inside of the water-impermeable thin layer portion at the bottom of the sheet. A water-absorbing paper layer portion is provided, and paper powder containing a highly water-absorbing resin is disposed between the upper and lower paper layer portions.
In addition, a large amount of paper products are currently produced and consumed, but a large amount of cutting waste is generated in the printing and binding stages according to each application, and the amount is enormous and recycled. Yes.
[0005]
[Problems to be solved by the invention]
However, cloth cloths and bar cloths are used repeatedly, so that the used cloth can be reused by rinsing, squeezing away the adhering water, and removing the rinsing water. It is a problem that requires a lot of trouble such as replacement. Also, conventional disposable sheets use paper powder and highly water-absorbent resin, and in particular, pulverized pulp is used for paper powder. However, pulp pulverized materials are difficult to obtain these days and are relatively expensive, so their use is problematic in terms of cost.
Therefore, disposable sheets reduce the amount of pulverized pulp and use a superabsorbent resin instead of the pulverized pulp. However, an absorbent body such as a disposable sheet using a superabsorbent resin with a reduced pulp pulverized material is formed relatively thin due to a small amount of pulp pulverized material used, resulting in poor elasticity. Therefore, it becomes a relatively stiff absorber, and reduction of pulp pulverized material is a problem for disposable diapers and the like.
On the other hand, when transporting marine products, the marine products are transported by placing them on the jars or paper, but the jars and paper get wet due to thawing of ice, etc., and the marine products being transported keep in contact with the wet jars and paper. It is a problem.
[0006]
In addition, paper diapers and sanitary napkins are manufactured in large quantities and consumed in large quantities. However, when cutting at the time of manufacture, cutting of the water-absorbing layer or plastic film containing raw paper dust and superabsorbent resin is performed. A large amount of waste is generated. Plastic film cutting waste has a high heat of combustion of plastic material, and its processing is a problem, and processing of paper diapers that are poorly inspected in the production of paper diapers is also a problem.
Furthermore, at the stage of recycling used paper, since mixing of plastic materials and metal materials is a problem, it is used as a building material such as wallpaper. For example, chemical fiber paper, inorganic fiber paper, metal fiber paper and metal Oxidized fiber paper, plastic film waste, etc. are excluded and are not used as raw materials, and are problematic.
The present invention relates to problems related to the raw materials and reuse of absorbent materials such as conventional cloths and mats, or sheets. Absorber The object is to solve the problems related to raw materials and elasticity and the disposal of inorganic fiber paper, plastic film waste and paper diaper waste.
[0007]
[Means for Solving the Problems]
The present inventor uses a pulverized product obtained by pulverizing sanitary material waste such as defective sanitary material and sanitary material cutting waste containing plastic material as an absorber without impairing the absorption capacity of the absorber. The ability to be used and the presence of plastic materials increase the combustion heat of the absorber after use, allowing self-combustion to continue, and also saving fuel during incineration, titanium paper waste, alumina paper waste, titanium It has been discovered that by using potassium acid paper waste and alumina / silica paper as a raw material of the absorber, the absorber can be given a function of removing odor and the like, and the present invention has been achieved.
In addition, the present invention provides a raw material for absorbent materials for various mats or sheets for humans or animals, such as water-impermeable membranes such as plastic films, paper waste materials containing paper powder or metal, or sanitary materials such as disposable diapers and sanitary napkins. It is an object to provide an absorbent body with relatively high water absorption using waste materials, and also a sheet for humans or animals that is relatively elastic using the absorbent body.
[0008]
That is, the present invention An upper water-absorbing paper layer portion that forms an upper surface, a lower water-absorbing paper layer portion that forms a lower surface, and a plastic waste material pulverized material, a paper waste material pulverized material, and a water absorbing material disposed between the upper and lower water-absorbing paper layer portions. And a water-absorbing mixed layer portion formed by containing a surfactant at least at the top, and the upper water-absorbing paper layer portion, the water-absorbing mixed layer portion, and the lower water-absorbing paper layer portion. Is in the absorbent body characterized by being combined and integrally formed, and The present invention relates to an upper water-absorbing paper layer portion forming an upper surface, a lower water-absorbing paper layer portion forming a lower surface, and a plastic waste material crushed material and paper waste material disposed between the upper and lower water-absorbing paper layer portions. A water-absorbing mixed layer portion including a pulverized product and a water-absorbing resin, and at least an upper portion containing a surfactant, and the upper water-absorbing paper layer portion, the water-absorbing mixed layer portion, and the lower water-absorbing portion. The absorbent paper layer portion is formed into a laminated body, and the absorbent body is characterized in that an uneven pattern by embossing is formed on at least one surface thereof, further, The present invention includes an upper water-absorbing paper layer portion that forms an upper surface, a lower water-absorbing paper layer portion that forms a lower surface, and an intermediate water-absorbing paper layer portion disposed between the upper and lower water-absorbing paper layer portions. A water-absorbing resin disposed between the upper water-absorbing paper layer portion and the intermediate water-absorbing paper layer portion, and a water-absorbing resin-containing layer portion containing at least part of a surfactant, and the intermediate water-absorbing paper layer And a lower water absorbent mixed layer portion including a plastic waste material pulverized material, a paper waste material pulverized material and a water absorbent resin, disposed between the upper water absorbent paper layer portion and the lower water absorbent paper layer portion. The resin-containing layer part, the intermediate water absorbent paper layer part, the water absorbent mixed layer part, and the lower water absorbent paper layer part are combined to form a laminate, and at least one surface thereof has an embossed ridge formed thereon. In the absorber, characterized by Furthermore, The present invention includes an upper water-absorbing paper layer portion that forms an upper surface, a lower water-absorbing paper layer portion that forms a lower surface, and an intermediate water-absorbing paper layer portion disposed between the upper and lower water-absorbing paper layer portions. A water absorbent resin-containing layer portion disposed between the upper water absorbent paper layer portion and the intermediate water absorbent paper layer portion, and between the intermediate water absorbent paper layer portion and the upper water absorbent paper layer portion. An upper water-absorbing mixed layer part including at least an upper part containing a surfactant, and the intermediate water-absorbing paper layer part and the lower water-absorbing part. A lower water absorbent mixed layer portion disposed between the paper layer portions and including a plastic waste material pulverized material, a paper waste material pulverized material, and a water absorbent resin, the upper water absorbent paper layer portion containing the water absorbent resin Layer part, middle water absorbent paper layer part, upper and lower water absorbent mixed layer part and lower water absorbent paper layer It is formed aligned in the stack, in the absorber, wherein the uneven pattern by embossing are formed on at least one surface.
[0009]
The present invention also provides a water-permeable thin layer portion that forms an upper surface, a water-permeable or water-impermeable thin layer portion that forms a lower surface, and an upper water-absorbent paper positioned in contact with the lower surface of the water-permeable thin layer portion. A layer portion, a lower water absorbent paper layer portion disposed in contact with an upper surface of the water permeable or impermeable thin layer portion, and disposed between the upper water absorbent paper layer portion and the lower water absorbent paper layer portion. , A plastic waste material pulverized product, a paper waste material pulverized product, and a water absorbent resin, and at least an upper part, a water absorbent mixed layer part containing a surfactant, and the upper water absorbent paper layer part, the water absorbent mixed part The layer portion and the lower water-absorbent paper layer portion are combined to form a laminate, and at least one surface thereof has an uneven pattern formed by embossing. The water-permeable thin layer part that forms the upper surface and the water-permeable material that forms the lower surface Is a water-impermeable thin layer portion, an upper water-absorbent paper layer portion positioned in contact with the lower surface of the water-permeable thin layer portion, and a lower water absorption disposed in contact with the upper surface of the water-permeable or water-impermeable thin layer portion. Disposed between the absorbent paper layer portion, the intermediate absorbent paper layer portion disposed between the upper and lower absorbent paper layer portions, the upper absorbent paper layer portion and the intermediate absorbent paper layer portion, A water-absorbing resin and a water-absorbing resin-containing layer portion containing a surfactant in at least a portion thereof, and disposed between the intermediate water-absorbing paper layer portion and the lower water-absorbing paper layer portion. And a lower water absorbent mixed layer portion containing a water absorbent resin, the upper water absorbent paper layer portion, the water absorbent resin-containing layer portion, the intermediate water absorbent paper layer portion, the lower water absorbent mixed layer portion, and the lower water absorbent layer. The paper layer part is combined to form a laminate, and at least one surface of it is embossed with embossed patterns. The present invention further includes a water permeable thin layer portion forming an upper surface, a water permeable or impermeable thin layer portion forming a lower surface, and the water permeable thin layer. An upper water absorbent paper layer portion positioned in contact with the lower surface of the layer portion; a lower water absorbent paper layer portion disposed in contact with the upper surface of the water permeable or impermeable thin layer portion; and the upper and lower water absorbent paper An intermediate water-absorbent paper layer portion disposed between the layer portions, an upper water-absorbent paper layer portion and an intermediate water-absorbent paper layer portion, and disposed of between the plastic waste material, the paper waste material ground material and the water-absorbent resin And at least the upper water-absorbing mixed layer portion containing the surfactant, and the intermediate water-absorbent paper layer portion and the lower water-absorbent paper layer portion are disposed between the plastic waste material and the paper waste material. And a lower water-absorbing mixed layer portion containing water and a water-absorbing resin, Water-absorbent paper layer, Upper part Water-absorbing mixed layer part, intermediate water-absorbing paper layer part, Lower water absorbing mixed layer And the lower water-absorbent paper layer portion is formed into a laminate by being combined, and at least one surface thereof has an uneven pattern formed by embossing.
[0010]
The present invention also provides a water-permeable thin layer portion that forms an upper surface, a water-permeable or water-impermeable thin layer portion that forms a lower surface, and an upper water-absorbent paper positioned in contact with the lower surface of the water-permeable thin layer portion. A layer portion, a lower water absorbent paper layer portion disposed in contact with an upper surface of the water permeable or impermeable thin layer portion, and disposed between the upper water absorbent paper layer portion and the lower water absorbent paper layer portion. , A plastic waste material pulverized product, a paper waste material pulverized product, and a water absorbent resin, and at least an upper part, a water absorbent mixed layer part containing a surfactant, and the upper water absorbent paper layer part, the water absorbent mixed part The layer part and the lower water-absorbent paper layer part are combined to form a laminate, and at least one surface thereof has a concavo-convex pattern formed by embossing. The invention includes a water permeable thin layer portion that forms an upper surface and a water permeable material that forms a lower surface. Alternatively, the water-impermeable thin layer portion, the upper water-absorbent paper layer portion positioned in contact with the lower surface of the water-permeable thin layer portion, and the lower water absorption disposed in contact with the upper surface of the water-permeable or water-impermeable thin layer portion. Disposed between the absorbent paper layer portion, the intermediate absorbent paper layer portion disposed between the upper or lower absorbent paper layer portion, the upper absorbent paper layer portion and the intermediate absorbent paper layer portion, A water-absorbing resin and a water-absorbing resin-containing layer portion containing a surfactant in at least a portion thereof, and disposed between the intermediate water-absorbing paper layer portion and the lower water-absorbing paper layer portion. And an upper water absorbent paper layer portion, a water absorbent resin-containing layer portion, an intermediate water absorbent paper layer portion, a water absorbent mixed layer portion, and a lower water absorbent paper. The layer portions are combined to form a laminate, and at least one surface has an uneven pattern by embossing. The present invention further includes a water-permeable thin layer portion that forms an upper surface, a water-permeable or water-impermeable thin layer portion that forms a lower surface, and the water-permeable layer. An upper water-absorbing paper layer portion located in contact with the lower surface of the thin layer portion; a lower water-absorbing paper layer portion disposed in contact with the upper surface of the water-permeable or water-impermeable thin layer portion; and the upper and lower water-absorbing paper layers. Disposed between the intermediate water-absorbent paper layer portion disposed between the paper layer portions, the upper water-absorbent paper layer portion, and the intermediate water-absorbent paper layer portion. It is disposed between the upper water-absorbing mixed layer portion containing the resin and at least the upper part of the water-absorbing mixed layer portion, the intermediate water-absorbing paper layer portion, and the upper water-absorbing paper layer portion. And a lower water absorbent mixed layer portion containing a water absorbent resin, and the upper water absorbent paper layer portion. ,During The intermediate water-absorbing paper layer portion, the upper and lower water-absorbing mixed layer portions, and the lower water-absorbing paper layer portion are combined to form a laminate, and at least one surface thereof has an uneven pattern formed by embossing. It is in the packaging material characterized by this.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, unlike the conventional absorber, the absorber can be used as an absorber for various uses, and can be used as a direct sheet and as a sheet, and further as a direct packaging material and as a packaging material. Is. When the absorbent body of the present invention is used as a sheet or a packaging material, the absorbent body of the present invention can be manufactured in a size as a sheet or a packaging material. However, a water-permeable nonwoven fabric is disposed on the upper surface of the absorbent body of the present invention, a water-impermeable waterproof sheet is disposed under the absorbent body, and is integrally formed into a sheet shape. Urine etc. can be prevented from leaking during excretion, and other sheets can be used for various sheets for resting and sleeping, etc. It can be used as a packaging material that can adjust moisture from the front surface side and / or the back surface side.
[0012]
In the present invention, the absorber is provided with an upper absorbent paper layer portion that forms an upper surface at the top, and a lower absorbent paper layer portion that forms a lower surface at the bottom. In the present invention, the upper and lower absorbent paper layer portions are preferably formed from thin paper or the like having a high water absorption rate. In the present invention, when a sheet or a packaging material is used, the upper surface can be formed of a water-permeable thin layer portion, and the bottom surface can be formed of a water-permeable or water-impermeable plastic film. In this case, a water-impermeable plastic film layer portion is provided in contact with the lower surface of the lower absorbent paper layer portion. In the present invention, when the bottom surface is an impermeable thin layer portion, the bottom portion can be formed of an impermeable film layer portion made of a plastic material such as polyethylene resin or polypropylene resin. In the present invention, an absorbent mixed layer portion including a plastic waste material pulverized material, a pulp waste material pulverized material, and a water absorbent resin is provided between the upper and lower paper layer portions.
[0013]
In the absorbent body of the present invention, the absorbent mixed layer portion provided between the upper absorbent paper layer portion and the lower absorbent paper layer portion includes a plastic waste material pulverized product, a pulp waste material pulverized product and a water absorbent resin, An uneven pattern formed by embossing, that is, an uneven pattern formed by embossing, is applied to a relatively flexible plate-like body. In the present invention, the embossed pattern is formed by a plurality of ridges including a plurality of protrusions or ridges having a width of less than 3 mm, preferably 2 mm or less. Thus, it is preferable to use a relatively flexible plate-like body having a concavo-convex pattern by embossing, because it can be in close contact with the floor portion and easily absorb water droplets on the floor.
[0014]
In the present invention, the upper paper layer portion of the absorbent body supports the water-permeable thin layer portion that forms the upper surface of the sheet or the packaging material, and can quickly absorb water that passes through the water-permeable thin layer portion. It is preferably made of a material and is generally formed of one or more thin papers. In the present invention, an absorbent mixed layer portion including a plastic waste material pulverized material, a pulp waste material pulverized material, and a water absorbent resin is provided between the upper and lower paper layer portions. In the present invention, the absorbent mixed layer portion substitutes the pulp material with a mixture of pulp waste material pulverized product, plastic waste material pulverized product and water absorbent resin, but the pulp waste material is also relatively expensive like the pulp material, Since it is difficult to obtain, the amount of pulverized plastic waste material used is larger than the amount of pulverized pulp waste material used.
[0015]
The present inventor has discovered that the use of a pulverized plastic waste product can increase water retention and elasticity in the absorber, and further, by attaching a surfactant to the surface of the pulverized plastic waste product, The present inventors have found that the water absorption speed of the plastic waste material pulverized product can be increased, and have reached the present invention.
In the present invention, by adsorbing a surfactant on at least a part of, for example, the upper part of the absorbent mixed layer part formed of the plastic waste material pulverized product, the pulp waste material pulverized product and the water absorbent resin, The water absorption rate can be increased.
In the present invention, by adsorbing the surfactant to the absorbent mixed layer portion of the absorber, the water absorption rate of the absorbent mixed layer portion can be increased, and it remains on the surface of the absorber without being absorbed by the absorber. The remaining time of water can be remarkably shortened. Accordingly, when the absorbent body of the present invention is used as a sheet or a packaging material, water can be prevented from remaining on the water-permeable thin layer portion disposed on the absorbent body, for example, the nonwoven fabric. Can be given a relatively dry feel.
[0016]
In the present invention, in order to increase the water absorption speed of the absorber, the upper and lower portions of the absorber are formed by the water-absorbing paper layer portion. In order to increase the absorption speed, the water-absorbent paper layer is formed by combining or pasting together one or more thin papers such as tissue paper, rayon paper, or composite paper one by one, or by combining them together in advance. It can be formed from a water absorbent paper formed by a plurality of thin papers. When the number of thin paper sheets is increased, the water absorption speed of the absorber can be increased. In this case, the thin paper can be colored with a color former that develops color when wet with water or a color former that develops color when reacted with water. As the water-absorbing paper, composite paper having absorbency obtained by bonding thin paper and chemical fiber paper can be used.
[0017]
In the present invention, in order to increase the water holding capacity of the absorbent body, a water absorbent mixed layer portion including a plastic waste material pulverized material, a paper waste material pulverized material, and a water absorbent resin is disposed between the upper and lower water absorbent paper layer portions. The upper and lower water-absorbing paper layer portions and the water-absorbing mixed layer portion may be integrated or bonded together to form an absorbent body having at least a convex portion on the upper surface. In the present invention, when the absorber has a function of removing odor or the like, the water-absorbing mixed layer portion is crushed titanium paper waste, pulverized alumina paper waste, pulverized potassium titanate paper waste or pulverized alumina silica paper waste. The inorganic fiber paper waste material pulverized material such as the above, or two or more pulverized materials of the inorganic fiber paper waste material pulverized material can be blended. Furthermore, in the present invention, an inorganic adsorbent such as talc, zeolite or bentonite can be blended in addition to the inorganic fiber waste material pulverized product in order to give the absorber a function of removing odor and the like.
[0018]
In the present invention, an intermediate water-absorbing paper layer portion can be provided between the upper and lower water-absorbing paper layer portions. In this case, the intermediate water-absorbent paper layer portion can be formed of at least one thin paper sheet excellent in water absorbency, similar to the upper and lower water-absorbent paper layer portions, in order to increase the water absorbency, A plurality of thin papers can be formed one by one or bonded together, and can be formed by a plurality of thin papers that are integrated together in advance. The thin paper can be colored with a color former that develops color in response to water. Between the upper part and the intermediate water absorbent paper layer part, a water absorbent resin-containing layer part or a water absorbent mixed layer part is provided. The water-absorbing resin-containing layer portion only needs to contain a water-absorbing resin. However, in addition to the water-absorbing resin, plastic waste material pulverized material and / or paper waste material pulverized material can be contained. The paper waste material pulverized product and the water-absorbent resin can be included at a ratio different from the part. Even in this case, when the absorbent has a function of removing odors, etc., the paper waste material used for the water-absorbing mixed layer portion is, for example, titanium paper waste material, alumina paper waste material, potassium titanate paper waste material or alumina silica paper waste material. A pulverized product of defective inorganic fiber paper or inorganic fiber paper waste material can be used. Examples of the pulverized product of such defective inorganic fiber paper or inorganic fiber paper waste material include defective titanium paper or pulverized titanium paper waste material, defective alumina paper or pulverized alumina paper waste material, defective potassium titanate paper or potassium titanate paper. There is a pulverized product of waste material, a pulverized product of defective alumina / silica paper or alumina / silica paper waste material, a pulverized product of defective carbon fiber paper or carbon fiber paper waste material, or a mixture of two or more of the pulverized products.
[0019]
In the present invention, the absorbent body can be used for a sheet or a packaging material. When the absorbent body is used as a sheet or a packaging material, the member forming the upper surface can be a water-permeable thin layer portion such as a dry or wet nonwoven fabric depending on the purpose. The water-permeable thin layer portion can be a plastic film having pores having a size corresponding to the degree of water permeation or a wet or dry nonwoven fabric having a water permeability function according to the degree of water permeation. In this invention, when using an absorber for a sheet | seat, the side used as a lower surface can be formed with a water-impermeable thin layer part, such as a water-impermeable plastic film. The impermeable thin layer portion thus formed is provided in contact with the lower surface of the lower water-absorbent paper layer portion, and may be formed of an impermeable plastic film made of a plastic material such as polyethylene resin or polypropylene resin. it can. However, in the present invention, in the case of a packaging material, the thin layer portion serving as the lower surface can be a water-permeable thin layer portion depending on the material to be packaged. In the case of a water-permeable thin layer part, a plastic film having pores having a size corresponding to the degree of water permeation or a wet or dry nonwoven fabric having a water permeation function according to the degree of water permeation can be used. When the upper and bottom portions of the absorber are configured in this way, for example, by placing on the floor surface wetted by rain or the like, water that wets the floor surface can be automatically sucked away, and it is not necessary to wipe off the floor surface. , You can save the trouble. Thus, the sheet having a water-permeable thin layer portion can be used as a vehicle rug, an umbrella rug, a toilet rug, a rug around a toilet, and the like to prevent wetting of each floor. . In addition, by forming the water-permeable thin layer portion from a material having a plurality of capillary tubular fine holes, for example, a packaging material for packaging fruits and vegetables or fresh fish, the thin layer portion is passed through holes of a desired size and packaged. It is possible to appropriately adjust the moisture content of the packaging materials such as fruits and vegetables and fresh fish.
[0020]
In the present invention, the plastic waste material is generally discarded, for example, a synthetic resin fiber waste material having a thickness of 2 mm or less, a film or sheet-like synthetic resin waste material, a film or sheet-like synthetic rubber waste material, or a plastic film waste material, preferably 5 mm or less, preferably Is pulverized to a particle size of 3 mm or less and used in the water-absorbing mixed layer portion together with the pulverized paper waste material. Thus, it is preferable to grind the plastic waste material to a particle size of 5 mm or less, preferably 3 mm or less because the water retention function is increased. In addition to the above-mentioned pulverized plastic waste, the pulverized plastic waste is crushed paper diaper, pulverized milk pad waste, urine pad waste, sanitary napkin waste, pulverized to 5 mm or less, preferably 3 mm or less. Among the separated products separated by classification or the like, the separated product rich in plastic material, for example, the separated product containing the plastic material as a main component is used. be able to.
[0021]
In the present invention, the paper waste material pulverized product is a pulverized product obtained by pulverizing paper waste material having a particle size of 5 mm or less. For example, a defective paper diaper or a pulverized paper diaper waste material, a defective milk pad or a crushed material of milk pad waste material, a defective urine pad Or pulverized material of urine pad waste, pulverized sanitary napkin or sanitary napkin waste, crushed material of defective superabsorbent fiber or superabsorbent fiber, defective thermal paper or thermal paper waste, defective paper tube or paper tube Waste material crushed material, waste paper container or paper container waste material, newspaper waste material ground material, defective cardboard or corrugated cardboard waste material, corrugated base paper waste material ground material, wood pulp waste material ground material, waste paper pulp waste material ground material Non-wood pulp waste material, waste paper ground material, defective paper tube or paper tube waste material, defective inorganic fiber paper or inorganic fiber paper waste material powder , Crushed material of defective chemical fiber paper or chemical fiber paper waste, dry or wet defective nonwoven fabric or pulverized dry or wet nonwoven fabric waste or pulverized defective laminated paper or laminated paper waste material, Pulverized product, crushed product of defective thermal paper or thermal paper waste material, pulverized product of defective deodorant paper or deodorized paper waste, pulverized product of defective insect proof paper or insect proof paper, crushed product of defective absorbent paper or absorbent paper, defective copy paper Alternatively, there may be a pulverized product of copy paper waste, a pulverized product of used paper containers, a pulverized product of defective magnetic recording paper or magnetic recording paper waste, or a mixture of two or more of the pulverized products.
[0022]
In the present invention, the paper waste material used for the paper waste material pulverized product includes defective products of printed paper, cutting waste and perforations discharged from a printing factory, a paper factory, a sanitary product manufacturing factory, a food container manufacturing factory, etc. Waste materials such as waste paper, shredded paper scraps, various paper defectives and cutting scraps, defective sanitary products including paper and cutting scraps, and food container defectives and food container paper cutting scraps such as printing paper , Printing information paper, wrapping paper, sanitary paper and hybrid paper waste, waste paper, newspaper waste, non-woven fabric waste, corrugated paper waste, paper tube waste, paper waste, thermal paper waste, sanitary material waste, corrugated base paper waste, paper container There are raw paper waste, wood pulp waste, waste paper pulp waste, non-wood pulp waste, etc., and besides these, there are used tickets discharged from railways, airplanes, and highways, etc. Besides the highway Various service area, various leisure facilities, parking, used paper containers discharged from various beverage production plants, for example, used paper cups and paper trays, and the like defective paper cup. These paper waste materials are pulverized into a pulverized product having a particle size of 5 mm or less, preferably 3 mm or less. The pulverized material of these paper waste materials is used for the absorber as a mixture of one type of paper crushed material or a mixture of two or more types of pulverized paper waste materials.
[0023]
The plastic waste material pulverized product and paper waste material pulverized product used in such an absorber include pulverized product defective products containing plastic materials and pulp materials, and waste materials such as cutting waste generated during the production of the products. There is a pulverized product. Examples of such plastic waste material pulverized material and paper waste material pulverized material include, for example, pulverized products of defective sanitary products including paper and pulverized products thereof, and in particular, pulverized products of defective paper diapers and cutting scraps of paper diapers. Crushed product, bad milk pad pulverized product, milk pad cutting crushed product, defective urine pad crushed product, urine pad cutting crushed product, defective sanitary napkin crushed product, sanitary napkin crushed product , Pulverized product of defective laminated paper, crushed product of laminated paper cutting waste, etc., or a mixture of two or more of these pulverized products. In addition to the pulverized waste plastic material and pulverized paper waste material, in addition to the pulverized paper waste material, the pulverized waste material containing plastic and pulp, for example, the pulverized waste paper diaper, the crushed waste paper diaper, Milk pad grind, milk pad cutting waste, bad urine pad grinding, urine pad cutting waste, bad sanitary napkin ground, sanitary napkin cutting waste, bad Pulp-rich classified product and plastic-rich classified product or waste material containing plastic and pulp separated by classification treatment of pulverized product of laminated paper product or used laminated paper waste material or crushed material of laminated paper cutting waste Pulp-rich classification products and plastic-rich classification products separated by classification treatment of two or more mixed pulverized pulverized products A. In addition to these, the pulp content is small, but shredded by a document shredding machine such as fine paper, computer paper, office paper or printing paper, that is, shredder waste paper, punch waste paper, titanium Absorb paper, alumina paper, alumina silica paper, potassium titanate paper or carbon fiber paper or wet or dry nonwoven fabric or a combination of two or more paper waste materials and / or a combination of these paper waste materials and the above paper waste materials. It can be used as paper waste material that constitutes the body. In the present invention, titanium paper, alumina paper, alumina silica paper, and potassium titanate paper are fiber papers containing titanium dioxide, alumina, alumina silica, or potassium titanate, respectively, and are used as wallpaper, for example. It is.
[0024]
In the present invention, in order to increase the texture and elasticity of the absorbent body, the content of the plastic waste material pulverized material used in the water-absorbing mixed layer portion can be increased compared to the content of the paper waste material pulverized material. . In this case, the water absorption speed of the water-absorbing mixed layer portion is reduced by the amount of the crushed waste of the valve, and the water remains on the surface of the absorber without being absorbed during the formation. Therefore, in the present invention, a plurality of independent recesses or a plurality of recesses that are continuous with each other are formed on the surface of the absorber, and water remaining on the surface of the absorber is introduced into the recess and accommodated. I am doing so. However, the water that has flowed into the recess remains without being absorbed by the water-absorbing mixed layer portion because the water absorption speed of the water-absorbing mixed layer portion is small.
[0025]
Therefore, in the present invention, a surfactant is attached to at least one surface of the absorbent body to increase the water absorption rate of the absorbent body, and the water absorbent resin is mixed to form a water absorbent mixed layer. Water retention capacity as well as Increases water absorption capacity. In this way, by adhering the surfactant to, for example, the front surface and / or the back surface of the absorber, the water accumulated in the recesses can be quickly absorbed by the absorber, and the water absorbent resin is mixed. Combine By doing so, water can be absorbed and retained in the water-absorbing mixed layer portion. In the present invention, by forming a concave portion on the surface of the absorber, the surface area in contact with water is increased, and further, a surfactant is attached to the concave portion, thereby increasing the water absorption rate of the absorber. Can absorb water quickly. As the surfactant, anionic surfactants such as sodium dodecylbenzenesulfonate are preferable, but in addition to these, cationic surfactants such as lauryltrimethylammonium chloride, nonionic surfactants such as octylphenyl ether, etc. is there.
In this invention, it can relieve | moderate that water remains on the surface of an absorber by forming a recessed part or a convex part in the surface of an absorber in this way, and making a surfactant adhere.
[0026]
In the present invention, when forming a sheet, when the nonwoven fabric layer portion is formed on the surface of the absorbent body so that the nonwoven fabric layer portion is supported by the convex portions formed on the absorbent body, It is preferable because the nonwoven fabric layer can be prevented from getting wet and water from seeping out from the nonwoven fabric layer. In the present invention, in order to increase the water absorption capability of the absorber and the sheet, a water absorbent paper layer portion formed of thin paper is provided on the upper and lower portions of the absorber. In order to increase the water retention capacity of the absorbent body, a water absorbent mixed layer portion including a plastic waste material pulverized material, a paper waste material pulverized material and a water absorbent resin is provided between the upper and lower water absorbent paper layer portions. The lower water-absorbing paper layer portion and the water-absorbing mixed layer portion are bonded together to form an absorbent body.
[0027]
In the present invention, the upper water-absorbent paper layer portion, the lower water-absorbent paper layer portion, and the plastic waste crushed material, the paper waste material pulverized material and the water-absorbent resin provided between the upper and lower paper layer portions The mixed layer portion is embossed and pressure-molded into a relatively flexible plate-like body. Such a relatively flexible plate-like body is preferable because it adheres well to the floor portion and easily absorbs water droplets on the floor.
In the present invention, an intermediate water absorbent paper layer portion can be disposed between the upper and lower water absorbent paper layer portions. When the water-absorbing paper layer portion has three layers as described above, a water-absorbing resin-containing layer portion can be formed between the upper water-absorbing paper layer portion between the upper portion and the intermediate water-absorbing paper layer portion. If only water absorption is required and elasticity is not required, only water absorbent resin can be placed.However, if not only water absorption but also elasticity is required, plastic waste powder can be added to the water absorption resin. In addition, elasticity can be given.
[0028]
In the present invention, the sheet has a water-permeable thin layer portion that forms an upper surface. The water-permeable thin layer portion is made of, for example, a nonwoven fabric made of plastic fibers such as polypropylene, polyethylene, nylon, or vinylon, or polyethylene, polypropylene, It can be formed of a porous film made of a plastic material such as vinyl chloride resin, the lower part is a water-impermeable plastic film layer part, and the plastic film layer part is made of polyethylene, polypropylene, etc. as in the case of the absorber It can be formed of a plastic impermeable thin layer portion. In the present invention, a water-absorbent paper layer portion can be provided on the inner side of the water-permeable thin layer portion in contact with the inner surface thereof. In the present invention, it is preferable to use a water-permeable thin layer portion to which bactericidal and deodorizing properties are imparted, since the odor generated by sweat or urine that adheres during use is reduced. In the present invention, when the water-impermeable membrane and the water-permeable membrane layer portion of the biodegradable plastic material and the water-absorbing mixed layer portion containing the biodegradable plastic material are used, the obtained absorbent body, sheets and packaging material are soiled. It is preferable because it can be buried and discarded. In the packaging material of this invention, when making upper and lower surfaces water-permeable, both upper and lower surfaces can be made into a water-permeable thin layer part, such as a nonwoven fabric.
In the present invention, for example, 25 ml of water is injected into a circle having a diameter of 2 cm within 10 seconds from, for example, a washing tub nozzle, and the total amount of the water-permeable thin layer portion is 20 seconds. The permeation time here, that is, the water permeability, is more preferable as it is further shortened.
[0029]
In the present invention, the upper, middle and lower water-absorbing paper layer portions are preferably formed of thin paper such as absorbent paper, water-absorbing paper, or crepe paper, because good water absorption can be secured. In the present invention, a composite paper produced by dispersing pulp and chemical fibers in a liquid and making paper can be used as the water absorbent paper. For example, a composite paper having water absorption or water permeability obtained by bonding a chemical fiber paper such as a chemical fiber paper made of polypropylene to a thin paper can be used. In the present invention, the water-absorbing paper layer portion is provided as an upper water-absorbing paper layer portion in contact with the lower surface of the water-permeable thin layer portion. It may be formed, and the bottom surface can be reinforced by forming the bottom surface with a thin layer made of impermeable plastic. In this case, the lower water absorbent paper layer portion can be provided in contact with the inner surface, that is, the upper surface of the impermeable thin layer portion made of plastic. When the bottom portion is formed of the impermeable plastic thin layer portion, it is preferable to make a hole in the plastic thin layer portion in order to absorb liquid such as water from the bottom surface. The size of the hole is preferably small in order to maintain the mechanical strength of the bottom surface. The shape of the hole can be formed in various shapes such as a square and a circle, and the size is, for example, 30 mm or less, preferably 20 mm or less, and more preferably 10 mm or less.
[0030]
In the present invention, a water-absorbing mixed layer portion including a plastic waste material pulverized product, a paper waste material pulverized product, and a water-absorbing resin is provided in contact with the water-absorbing paper layer portion. In this water-absorbing mixed layer portion, the plastic substance content is set larger than the pulp content, and the waste plastic pulverized material is mixed with the pulverized plastic waste material. If the paper waste material is paper powder, milk pad waste material, urine pad waste material, or sanitary napkin waste material, these waste material grinds have a relatively high plastic substance content. High pulp content and high water-absorbing resin content, plastic waste material pulverized material such as synthetic resin fiber waste material, rayon fiber waste material, polyethylene film waste material powder, polypropylene film waste material Synthetic rubber waste pulverized product can be added and mixed. In addition, as waste paper waste material, low waste pulp content, for example, waste paper such as punch waste or book cutting paper waste, or waste paper ground material with increased pulp content by classifying the ground waste it can. In addition to these, as the paper waste material pulverized product, the paper diaper waste pulverized product, the milk pad waste pulverized product, the hip pad waste pulverized product, the sanitary napkin waste pulverized product, or a mixture of two or more waste pulverized products of the waste pulverized product. The classification product rich in pulp obtained by classification can be used.
[0031]
In the present invention, when a sanitary material such as a defective paper diaper, milk pad, hip pad or sanitary napkin is used as a paper waste material, it contains a plastic material, paper powder and a water-absorbing resin. The amount of the pulverized product and the superabsorbent resin can be reduced, and the mixing operation is simplified, which is preferable. The so-called dust collection loss collected during cutting of the sanitary material and the dust generated during cutting contains plastic material and paper powder of pulp material powder. It can also be used as pulverized paper waste. Since the cutting waste or dust collection loss generated during the production of these sanitary materials has a low content of the water-absorbing resin or the highly water-absorbing resin, it is necessary to add and mix the water-absorbing resin or the highly water-absorbing resin. In the present invention, the waste pulp waste material having bactericidal and deodorizing properties can be used as the pulp material.
[0032]
In the present invention, the absorbent body has a water absorbent paper layer portion formed of thin paper such as water absorbent paper on each of the front side and the back side. Thin paper such as water-absorbing paper can be, for example, a tissue paper having a basis weight of 12.5 g / m 2, and can be arranged one by one above and below. In the present invention, when the absorbent body is used as a sheet for humans or animals, for example, two water-absorbing papers on the upper surface can be used, and the water-absorbing paper located on the top can be used as the water-absorbing paper for inspection. In this case, the water-absorbing paper includes two or more inks containing a commonly used pH detection reagent, an ink containing a protein detection reagent, an ink containing a occult blood detection reagent, an ink containing a urobilinogen detection reagent, or the detection reagent. Can be printed. In this way, by using at least two upper absorbent papers and printing the detection reagent on the uppermost absorbent paper, it is possible to avoid the influence of paper dust and superabsorbent resin on the printed detection reagent. This is preferable because accurate detection can be performed. In the present invention, if a thin paper having a sterilizing property is used as the thin paper, the use of the absorbent body, the sheet, and the packaging material reduces the odor generated by sweat or urine adhering to the absorbent body, the sheet, or the packaging material. preferable.
[0033]
In the present invention, the water-absorbing resin-containing layer portion may be formed only of the water-absorbing resin, or various water-absorbing materials may be blended in addition to the water-absorbing resin to form an absorbent mixed layer portion, for example. it can. In order to maintain the water absorption in the absorber, a highly water absorbent resin is blended. 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. When used for waste oil treatment or the like, a water-absorbing resin having a high oil-absorbing property is used.
[0034]
In the present invention, it is preferable to use a so-called highly water-absorbent resin having high water absorbability because the amount of the water-absorbent resin contained in the waste material can be reduced.
In the present invention, the term water-absorbing resin means a water-absorbing resin having a low water-absorbing ability as compared with a high-grade water-based resin, in addition to a high-grade water-based resin.
In the present invention, when only the waste paper diaper waste material is used, the highly water-absorbent resin is preferably 14 to 28% by weight of the absorbent body and can maintain high water absorption.
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 has a water absorption capacity of 10 to 30 g / g, which is artificial urine, and is poor in water absorption performance. The particle size of the superabsorbent resin used is preferably 50 to 500 μm.
[0035]
When adding the pulverized product of the punch scrap to the waste paper powder, the particle size of the pulverized punch scrap is reduced, and the amount used is 3 to 20% by weight or less, preferably 3 to 10% of the paper powder. It is preferable to set it as the weight% or less.
In the present invention, plastic waste materials and pulp waste materials and water absorbent resin waste materials used in the water absorbent mixed layer portion 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 properties. Preferably it is done.
In the present invention, the composition of the absorbent when the water-absorbent paper is placed one above the other (12% by weight of the total weight of the absorbent) is 14 to 28% by weight of water absorbent resin, The pulp content of the waste material ground material (paper powder) is preferably 40% by weight or less, and the content of the plastic waste material ground material is preferably 50% by weight or less.
[0036]
[Action]
In the present invention, the absorbent comprises an upper water-absorbent paper layer portion forming an upper surface, a lower water-absorbent paper layer portion forming a lower surface, and a plastic waste material pulverized material, paper between the upper and lower water-absorbent paper layer portions. A water-absorbing mixed layer portion including a ground material and a water-absorbing resin, and at least an upper portion containing a surfactant, the upper water-absorbing paper layer portion, the water-absorbing mixed layer portion, and the lower water-absorbing portion. Since the paper layer portions are united and formed integrally, when the absorber is placed on the floor, the absorber absorbs water drops falling on the floor. Is the ratio A relatively dry state can be maintained, and the floor can be prevented from getting wet.
Therefore, for example, prevent rain from getting wet on the floor of an outdoor event venue or the ground of a playground, laying on the floor of a kitchen, the floor of a washroom, the floor around a refrigerator, and the floor of a toilet, etc., absorb water drops on the floor Thus, the floor can be prevented from getting wet. Further, for example, it can be used as an auxiliary mat for a bed to prevent the bed of a patient with nocturnal enuresis from getting wet. It can be used as a water-absorbing mat for wiping off the condensation on the ceiling, wall or window of the building, thereby removing the condensation on the windows. Moreover, when it is used as a water-absorbing mat for preventing the evaporation of water for horticulture, it is preliminarily dampened and used on a potted plant or the like, so that evaporation of water from the potted plant due to water retention can be prevented. The water-absorbing mat can be laid under, for example, a fishery product, or the water-absorbing mat can be formed into a bag shape to wrap the fishery product, and the fishery product can be transported without contact with the defrosted water.
[0037]
The present invention also provides an upper water-absorbent paper layer portion forming an upper surface, an impermeable thin layer portion forming a lower surface, and a lower water-absorbent paper layer provided in contact with the lower surface of the impermeable thin layer portion. And an absorbent pulverized material mixture layer formed by containing a plastic waste material, a paper waste material pulverized material, and a water absorbent resin between the upper part and the lower and upper water-absorbing paper layer parts, and at least an upper part containing a surfactant. The upper water-absorbent paper layer portion, the water-absorbent resin-containing layer portion, the intermediate water-absorbent paper layer portion, the water-absorbent mixed layer portion and the lower water-absorbent paper layer portion are combined and integrally formed, Since an embossed ridge, that is, a pattern consisting of a plurality of recesses or projections having a size of 2 mm or less, is formed on one surface thereof, a hole is made in a water-impermeable thin layer portion such as a plastic film, and a plastic film, etc. Water impervious thin layer is made water permeable, wet floor water It can also allow water from the lower surface. Further, in the absorbent body and sheets of the present invention, even when the water entering from the upper surface is a relatively large amount such as urine, the surface area is increased by the embossing pad without forming a pool of water on the surface portion, Since the surfactant is attached by coating or the like and is easily wetted, the water-absorbing mixed layer portion can be absorbed relatively quickly by the action of the surfactant. As described above, the absorbent body and the sheet of the present invention halve the amount of pulp material to be used, and even if it is supplemented with pulverized plastic waste, water drops falling on the floor are maintained with a predetermined mechanical strength. Absorbs and eliminates water wetting. Therefore, for example, it is arranged in the receiving part of the umbrella stand and absorbs water drops flowing from the wet umbrella, so that water does not collect in the umbrella stand.
[0038]
Furthermore, the absorbent body and the sheet of the present invention include, for example, a water-permeable thin layer portion such as a nonwoven fabric forming an upper surface, a water-impermeable thin layer portion such as a plastic film forming a lower surface, and the water-permeable thin layer portion. An upper water-absorbing paper layer portion disposed in contact with the lower surface of the upper water-absorbing paper layer, and disposed in contact with the lower surface of the upper water-absorbing paper layer portion, including plastic waste material powder, paper waste material powder and water-absorbing resin, A water-absorbing mixed layer portion formed to include a surfactant; and a lower water-absorbing paper layer portion disposed in contact with the lower surface of the water-absorbing mixed layer portion, and further the impermeable thin layer portion Is disposed below the lower water absorbent paper layer portion, and further, the upper water absorbent paper layer portion, the water absorbent resin-containing layer portion, the intermediate water absorbent paper layer portion, the water absorbent mixed layer portion, and The lower water-absorbent paper layer is bonded and formed integrally. On one surface, embossed wrinkles, i.e., forming a plurality of recesses or wrinkles consisting of projections of less size 2mm Because Plastic waste can be used effectively as a material for absorbent bodies and sheets, and the obtained absorbent bodies and sheets allow urine excreted by humans or animals to accumulate on the surfaces of the absorbent bodies and sheets. It can be avoided, absorbs well, has good water retention, does not flow out, and has elasticity, and is suitable for use as a bed sheet for animals, as a mat or bedding.
In the sheets and packaging materials of the present invention, plastic film waste materials such as polyethylene film waste material and polypropylene film waste material have a high combustion heat and are a problem because they hurt the combustion furnace. Used as sanitary materials such as disposable diaper waste, sanitary napkin waste, etc., by mixing with paper stock contained in paper waste to increase the combustion heat of the absorber, including plastic film waste. Even if the heat of combustion decreases due to moisture such as rainwater, water, urine, and sweat that adheres to the absorber later, mixing the plastic film waste material can improve the combustion failure of the absorber after use, and treat the plastic film waste material. This makes it easy to reduce waste disposal costs.
[0039]
The present invention relates to a water-absorbing mixed layer portion disposed between an upper water-absorbing paper layer portion and a lower water-absorbing paper layer portion, a pulverized product of titanium paper waste material, a pulverized product of alumina paper waste material, and potassium titanate paper. Waste paper pulverized material, alumina / silica paper waste material pulverized material, carbon fiber paper waste material or other inorganic fiber paper waste material pulverized material, or a mixture of two or more inorganic fiber paper waste material pulverized materials is used as at least part of the paper waste material. , Since the plastic waste material and water-absorbent resin are blended into this to make an absorbent body, it is used as a sheet by the odor removal function of the inorganic fiber paper waste material ground material in the absorbent body. The odor can be removed and the odor of the sheet after use can be reduced. Further, when used for packaging fruits and vegetables, the freshness of the fruits and vegetables can be maintained by removing ethylene, a mature hormone generated from the fruits and vegetables.
In the present invention, the water permeability means the property of water permeation. For example, when a fixed amount (25 ml) of water or pseudo urine is injected into a 2 cm circle within 20 seconds or less, the total amount of water or pseudo urine is injected. It is calculated | required in time (second) required for permeation | transmission, and the one where the permeation | transmission time is short is excellent in water permeability than the one where it is long.
[0040]
【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 a schematic partial cross-sectional view showing an outline of a cross-sectional structure of an absorbent body having a single water-absorbing mixed layer portion according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing a schematic cross-sectional structure in the width direction of the absorber of one embodiment of the present invention having the cross-sectional structure of the absorber of the embodiment shown in FIG. FIG. 3 is a cross-sectional view showing a schematic cross-sectional structure in the width direction of an absorbent body according to another embodiment of the present invention having the cross-sectional structure of the absorbent body according to the embodiment shown in FIG. 4 has the cross-sectional structure of the absorbent body of the embodiment shown in FIG. 1 or FIG. 4, but is different from the absorbent body of the embodiment shown in FIGS. 2 and 3 with respect to the absorbent body of another embodiment of the present invention. It is sectional drawing which shows the general | schematic cross-section of the width direction. FIG. 5 is a schematic partial cross-sectional view showing a schematic cross-sectional structure in the width direction of an animal sheet of one embodiment of the present invention using the absorbent body of the embodiment shown in FIG. FIG. 6 is a schematic partial cross-sectional view showing a schematic cross-sectional structure of a water absorbent mat according to an embodiment of the present invention using the absorbent body according to the embodiment of the present invention having the cross-sectional structure shown in FIG. . FIG. 7 is a schematic partial sectional view showing a schematic sectional structure in the width direction of an animal sheet of another embodiment of the present invention using the absorbent body of the embodiment of the present invention shown in FIG. . FIG. 8 is a schematic partial cross-sectional view showing a schematic cross-sectional structure in the width direction of an animal sheet of another embodiment of the present invention using the absorbent body of the embodiment of the present invention shown in FIG. . FIG. 9 is a schematic partial sectional view showing a schematic sectional structure in the width direction of an animal sheet of another embodiment of the present invention using the absorbent body of the embodiment shown in FIG. FIG. 10 is a schematic partial cross-sectional view showing a schematic cross-sectional structure in the width direction of an animal sheet of another embodiment of the present invention using the absorbent body of the embodiment shown in FIG. FIG. 11 shows the width of the animal sheet of one embodiment of the present invention in which the water-absorbing mixed layer portion of the animal sheet of the embodiment shown in FIG. 7 is a water-absorbing mixed layer portion in which a water-absorbing resin is unevenly distributed. It is a general | schematic fragmentary sectional view which shows the general | schematic cross-section of a direction. FIG. 12 shows the width of the animal sheet of one embodiment of the present invention in which the water-absorbing mixed layer portion of the animal sheet of the embodiment shown in FIG. 9 is a water-absorbing mixed layer portion in which a water-absorbing resin is unevenly distributed. It is a general | schematic fragmentary sectional view which shows the general | schematic cross-section of a direction. FIG. 13 shows the width of the animal sheet according to one embodiment of the present invention in which the water-absorbing mixed layer portion in the animal sheet of the embodiment shown in FIG. 10 is a water-absorbing mixed layer portion in which a water-absorbing resin is unevenly distributed. It is a general | schematic fragmentary sectional view which shows the general | schematic cross-section of a direction. FIG. 14 is a schematic partial cross-sectional view showing an outline of a cross-sectional structure of an absorbent body having two upper and lower water-absorbing mixed layer portions according to another embodiment of the present invention. FIG. 15 is a schematic partial cross-sectional view showing a schematic cross-sectional structure of an animal sheet using the absorbent body of the embodiment shown in FIG. 16 is a schematic partial sectional view showing a schematic sectional structure in the width direction of the animal sheet having the sectional structure of the embodiment shown in FIG. FIG. 17 is a schematic partial sectional view showing a schematic sectional structure in the width direction of the animal sheet having the sectional structure of the embodiment shown in FIG. FIG. 18 shows an animal sheet according to another embodiment of the present invention in which the water-absorbing mixed layer portion in the animal sheet of the embodiment shown in FIG. 16 is a water-absorbing mixed layer portion in which the water-absorbing resin is unevenly distributed. It is a general | schematic fragmentary sectional view which shows the general | schematic cross-section of the width direction. FIG. 19 shows an animal sheet according to another embodiment of the present invention in which the water-absorbing mixed layer portion in the animal sheet of the embodiment shown in FIG. 17 is a water-absorbing mixed layer portion in which the water-absorbing resin is unevenly distributed. It is a general | schematic fragmentary sectional view which shows the general | schematic cross-section of the width direction. FIG. 20 is a schematic partial cross-sectional view showing a schematic cross-sectional structure in the width direction of an animal sheet of one embodiment of the present invention using an absorbent body having an upper absorbent mixed layer portion formed of a water absorbent resin. It is. FIG. 21 is a schematic cross-sectional structure in the width direction of an animal sheet of another embodiment of the present invention different from FIG. 20 using an absorbent body having an upper absorbent mixed layer portion formed of a water absorbent resin. It is a general | schematic fragmentary sectional view which shows. FIG. 22 is a schematic process diagram showing an outline of a process for manufacturing the animal sheet shown in FIGS. 9 and 10. FIG. 23 is a schematic process diagram showing a process for manufacturing the animal sheet of the embodiment of the present invention shown in FIGS. 22, 16 and 17. FIG. 24 is a schematic process diagram showing a process of manufacturing the animal sheet of the embodiment of the present invention shown in FIGS. FIG. 25 is the same as FIG. as well as FIG. 22 is a schematic process diagram showing a process for producing the animal sheet of the embodiment of the present invention shown in FIG. 21; Corresponding portions in FIGS. 1 to 32 are denoted by the same reference numerals. 2, FIG. 8, FIG. 9, FIG. 12, FIG. 16, FIG. 18 and FIG. 20 are easy to draw diagrammatically, the absorbent body 1, the upper absorbent paper 4, the lower absorbent paper 2, and the absorbent mixed layer section 3. The upper and lower absorbent mixed layer portions 18 and 20 are exaggeratedly drawn in a mountain shape protruding upward, and the absorbent body 1, the absorbent mat 11, the animal sheet 11 and the packaging material shown in these drawings are shown. No. 11 has a small thickness. For example, the lengths of the upper absorbent paper and the lower absorbent paper are approximately the same.
[0041]
In one embodiment of the present invention shown in FIGS. 1 to 4, the water absorbent 1 is used as an absorbent body 1 for absorbent mats, various sheets, and packaging materials, and is formed of one or more thin papers. The lower water-absorbing paper 2 is used as the lower water-absorbing paper 2 to form a bottom surface. On the lower water-absorbing paper 2, a plastic waste material pulverized material, a paper waste material pulverized material and a water-absorbing resin mixture are placed. A layer portion 3 is formed, and on this water-absorbing mixed layer portion 3, a water-absorbing paper formed of one or more thin papers is placed as an upper water-absorbing paper 4 forming an upper surface, and pressure-molded. It is formed.
In the absorbent body 1 according to these embodiments, for example, the upper surface 5 and the lower surface 6 of the absorbent body 1 are provided with embossed ridges and are integrally formed.
[0042]
Example 1
In the embodiment shown in FIG. 2, the width of the upper absorbent paper 4 is substantially equal to the length of the lower absorbent paper 2 in the width direction. In the embodiment shown in FIG. 3, the width of the lower absorbent paper 2 is larger than the length of the upper absorbent paper 4 in the width direction. In the embodiment shown in FIG. 4, the widths of the lower absorbent paper 2 and the upper absorbent paper 4 in the width direction are the same or substantially the same so as to overlap each other.
Since this example is formed as described above, a water absorbent paper formed of one or more thin papers is arranged to form the lower water absorbent paper 2, and a plastic waste material pulverized product, a paper waste material pulverized product, and a water absorbent The water-absorbing mixed layer portion 3 is formed by placing a mixture of the functional resin. On the water-absorbing mixed layer portion 3 thus formed, a water-absorbing paper formed of one or more thin papers is placed as an upper water-absorbing paper, and pressure-molded, and the upper surface 5 and the lower surface 6 of the absorbent body 1. Is formed with an embossed ridge.
[0043]
In this example, in order to increase the water absorption speed of the absorbent body 1, the surfactant aqueous solution can be sprayed and adhered onto the pulverized product mixed layer 3 of the absorbent body 1. In this case, a water absorbent paper formed of one or more thin papers can be disposed as the upper water absorbent paper 4 on the pulverized product mixed layer to which a surfactant (not shown) is adhered by spraying. In this example, the water-absorbing mixed layer portion is formed by placing a mixture of plastic waste material pulverized material, paper waste material pulverized material and water-absorbing resin, but the mixture 16 of plastic waste material pulverized material and paper waste material pulverized material is formed in the lower part. The water-absorbing mixed layer portion 3 can be formed by placing on the water-absorbing paper 2 and spraying the water-absorbing resin 17 on the entire surface thereof.
A water absorption test was performed on the absorbent body 1 of this example. In these water absorption tests, 25 ml of simulated urine was added to a 20 mm diameter circle within 10 seconds from the nozzle of the washing bottle for analysis, and the added pseudo urine was absorbed on the surface of the absorber in the circle. This was done by measuring the time remaining on the surface. In the case of the absorber to which the surfactant is not attached, the time for which the pseudo urine remains was about 3 to 4 seconds. However, in the case of the absorber to which the surfactant is attached, the time for which the pseudo urine remains is about 2 -3 seconds, compared to an absorbent that does not attach a surfactant, the residual time of pseudo urine was shortened by 1/4 to 1/2, and it was confirmed that the use of a surfactant is effective. .
The simulated urine was prepared by adding 10 grams (g) of sodium chloride and 10 ml of aqueous ammonia to 1000 milliliters (ml) of tap water, mixing and stirring to dissolve.
[0044]
Example 2
In the embodiment shown in FIG. 3, the absorbent body 1 is for an animal sheet having a width of 300 mm and a length of 450 mm. In this example, plastics (56% by weight), pulps (40% by weight), and superabsorbent resin (4% by weight) are placed on the lower absorbent paper 2 (1.7 g) having a width of 340 mm and a length of 400 mm. The water-absorbing mixed layer portion 3 was formed by blending a pulverized product (36.9 g) of 4 mm or less of the classified product of the defective paper diaper included. An upper water absorbent paper 4 (1.4 g) having a width of 280 mm and a length of 400 mm is arranged on the water absorbent mixed layer portion 3, and both widthwise end portions 7 of the lower water absorbent paper 2 are arranged in the width direction of the upper water absorbent paper 4. Folded on the end 8 of the plate and embossed. In this embossing process, an emboss having a width of 2 mm or less, that is, an uneven pattern is formed on the upper surface 5 and the lower surface 6. In this example, the thickness of the absorber 1 is 0.55 mm, and is formed as an integral body as the absorber 1 with embossing.
In the absorbent body 1 of the present example, on the upper part of the pulverized material layer 3 of the defective paper diaper 3, 1 ml of a sodium dodecylbenzenesulfonate solution obtained by diluting 1 ml of anionic surfactant sodium dodecylbenzenesulfonate with 74 ml of water. A layer (not shown) sprayed with 5 ml is formed, and an upper absorbent paper 4 (1.4 g) is disposed on the water-absorbing mixed layer portion 3 sprayed with this surfactant solution. . For the thus prepared absorber, 25 ml of pseudo urine is added to one point of the absorber within 10 seconds with a syringe, and the time that the pseudo urine added to the point remains on the surface without being absorbed by the absorber is measured. As a result, it took about 1 to 2 seconds to absorb the whole amount. This result was the same as that of the absorber using the conventional pulp and super absorbent polymer.
The combustion heat of the absorbent body 1 in this example is 6684 kilocalories (kcal) / kg, but for example, it does not cause poor combustion even after absorbing double the amount of water used for sheets and mats.
[0045]
Example 3
2, 3, and 4, the absorbent body 1 folds the widthwise ends 7 of the lower absorbent paper 2 on the widthwise ends 8 of the upper absorbent paper 4. And Alternatively, both end portions 8 in the width direction of the upper water absorbent paper 4 and both end portions 7 in the width direction of the lower water absorbent paper 2 can be overlapped and embossed. Both ends 7 in the width direction of the lower absorbent paper 2 are folded on both ends in the width direction of the water-absorbing mixed layer portion 3, and are contacted on both ends 7 of the folded lower absorbent paper 2. Thus, the upper absorbent paper 4 can be arranged to form the absorbent body.
In the embodiment shown in FIGS. 2, 3 and 4, the water-absorbing mixed layer portion 3 includes plastics (56% by weight), pulps (40% by weight), and highly water-absorbing resin (4% by weight). The pulverized product 3 (36.9 g) of 4 mm or less of the classified product of the defective paper diaper is used, but the plastic waste material is placed on the lower absorbent paper 2 by placing a mixture of the plastic waste material and the paper waste material. The water-absorbing mixed layer portion 16 of the pulverized product and the paper waste material pulverized product can be formed, and the water-absorbing resin 17 can be sprayed thereon to form the water-absorbing mixed layer portion 3 in which the water-absorbing resin is biased. In this case, the amount of the superabsorbent resin sprayed is preferably determined by experiments or the like in order to give the water absorbent mixed layer portion 3 the desired water absorption capacity and water retention capacity (FIGS. 11, 12, and 12). (See FIG. 13).
[0046]
Example 4
In the animal sheet 11 of the embodiment shown in FIG. 5, the absorbent body 1 in the embodiment of FIG. 1 is used. In the animal sheet 11 of this example, a plastic film 12 is disposed under the lower absorbent paper 2 of the absorbent body 1, and the upper water absorbent is disposed on the upper absorbent paper 4 of the absorbent body 1. A non-woven fabric 13 is disposed over the paper. The end 14 of the nonwoven fabric 13 is hot-melt bonded to the end 15 of the lowermost plastic film 12 via a hot-melt adhesive. When the end portion 9 of the upper absorbent paper 4 and the end portion 10 of the lower absorbent paper 2 are overlapped, the both end portions can be thermocompression bonded during hot melt bonding.
When the end portion 7 of the lower absorbent paper 2 is folded and superimposed on the end portion 8 of the upper absorbent paper 4, the both end portions 7 and 8 can be pressure-bonded during molding by gluing and embossing. .
[0047]
In the embodiment shown in FIG. 5, since the animal sheet is formed as described above, the water absorbent paper formed of one or more thin papers is placed on the plastic film 12 as the lower absorbent paper 2. The mixture of the plastic waste material pulverized material, the paper waste material pulverized material, and the water absorbent resin is placed on the lower water absorbent paper 2 to form the water absorbent mixed layer portion 3. A water absorbent paper formed of one or more thin papers is placed on the water absorbent mixed layer portion 3 as an upper water absorbent paper 4 and is pressure-molded to form an uneven pattern by embossing on the upper surface of the absorbent body 1. And formed integrally as the absorbent body 1. The absorbent body 1 thus formed is placed on the plastic film 12, the absorbent body 1 placed on the plastic film 12 is covered with the nonwoven fabric 13, and the end 14 of the nonwoven fabric 13 and the plastic film 12 are covered. The animal sheet 11 is formed by joining to the end portion 15 by hot melt bonding and cutting to a predetermined size.
[0048]
In this example, in order to increase the water absorption speed of the animal sheet 11, the surfactant aqueous solution can be sprayed and adhered onto the pulverized material mixture layer 3. In this case, the absorbent body 1 is formed by disposing the water absorbent paper formed of one or more thin papers as the upper water absorbent paper 4 on the pulverized product mixed layer to which the surfactant is adhered by spraying. The absorbent body 1 placed on the plastic film 12 is covered, and the absorbent body 1 placed on the plastic film 12 is covered with the nonwoven fabric 13, and the end 14 of the nonwoven fabric 13 and the end 15 of the plastic film 12 are hot. It joins by melt adhesion, it cuts into a predetermined dimension, and forms the sheet 11 for animals with a comparatively large water absorption speed.
A water absorption test was performed on the animal sheet 11 of this example. In the water absorption test in this example, 25 ml of simulated urine is added to one point of the nonwoven fabric 13 of the animal sheet 11 within 10 seconds by a syringe, and the time that the added pseudo urine remains on the surface without being absorbed by the sheet is measured. Was done. Even when the surfactant is not adhered, the surface of the absorbent body is formed with a concavo-convex pattern of less than 3 mm by embossing, and a liquid urine reservoir for pseudo urine is formed under the nonwoven fabric 13. The pseudo urine added to the upper surface of the nonwoven fabric 13 of the sheet 11 permeated the nonwoven fabric within 1 second or less or 2 seconds or less, that is, absorbed by the sheet and disappeared. In the case of the absorbent body to which the surfactant is attached, the pseudo urine remaining on the upper surface of the animal sheet 11 does not stay on the nonwoven fabric, and passes through the nonwoven fabric within 1 to 2 seconds and is absorbed by the sheet. Disappeared.
[0049]
Example 5
In the embodiment of the present invention shown in FIG. 6, the absorbent body 1 is for an absorbent mat. In the embodiment shown in FIG. 6, the upper water absorbent paper 4 is provided on the lower water absorbent paper 2 so as to cover the water absorbent mixed layer portion 3. In this example, in order to fix the end portions of the upper and lower absorbent papers, the end portions 7 of the lower absorbent paper 2 are folded over the end portions 8 of the upper absorbent paper 4 to end the upper and lower absorbent papers. Can be fixed to each other. In this case, the width of the lower absorbent paper 2 is formed larger than the width of the upper absorbent paper 4. For example, in this example, the width of the lower absorbent paper 2 is 60 mm larger than the upper absorbent paper 4. Yes. Furthermore, in the embodiment shown in FIG. 6, the end 9 of the lower absorbent paper 2 can be overlapped with the end 10 of the upper absorbent paper 4 and the ends of the upper and lower absorbent paper can be fixed to each other. . In this case, the width of the lower absorbent paper 2 is formed to be the same or substantially the same as the width of the upper absorbent paper 4.
In this example, the absorbent mat 11 is a plastic in which a composite plastic nonwoven fabric 13 of polypropylene and polyethylene is disposed on the upper water absorbent paper 4 of the absorbent body 1, and a water permeable hole 21 is provided below the lower water absorbent paper 2. The film 12 is disposed and formed integrally.
[0050]
Example 6
In the embodiment shown in FIG. 7, the absorbent body 1 is for animal sheets or foot wipe mats having a width of 400 mm and a length of 600 mm. In this example, the lower absorbent paper 2 (16 g / m 2) 3.2 g having a width of 360 mm and a length of 560 mm, 3 mm containing 20 g of paper diaper pulverized powder and 13 g of pulp-based nonwoven fabric and 4 g of superabsorbent resin. The water-absorbing mixed layer portion 3 was formed by blending the following pulverized product. On the water-absorbing mixed layer portion 3, 3.2 g of an upper water-absorbing paper 4 (16 g / m 2) having a width of 360 mm and a length of 560 mm is disposed. The paper 9 was superimposed on the widthwise end portion 8 and compression-molded into a plate shape. In the compression molding process, an upper surface 5 and a lower surface 6 having embossments with a width of 2 mm or less were formed.
FIG. 8 shows an animal sheet of one embodiment of the present invention using the absorbent body of the embodiment shown in FIG.
[0051]
Example 7
The embodiment shown in FIG. 9 shows an animal sheet of one embodiment of the present invention using the absorbent body of the embodiment shown in FIG. 4 as in FIG.
The animal sheet shown in FIG. 9 is formed as a sheet having a width of 300 mm and a length of 450 mm as a pet sheet, and the weight per sheet is 32.4 g.
In the pet sheet 11 of this example, the absorbent body 1 is formed to have a width of 290 mm and a length of 400 mm. In this example, the absorbent body 1 has a lower absorbent paper 2 (12.5 g / m @ 2) formed of thin paper, which is 1.7 parts by weight, and has a width of 340 mm and a length of 400 mm. . On the lower water absorbent paper 2, there is formed a water absorbent mixed layer portion 3 formed of 26 parts by weight of a pulverized paper waste mixture and 4 parts by weight of a super absorbent polymer dispersed and mixed therewith. The pulverized product of the paper waste material mixture in Part 3 contains 40% by weight (10.4 parts by weight) of corrugated cardboard waste, 30% by weight (7 parts by weight) of rayon paper waste, and 30% by weight (7 parts by weight) of titanium paper. In this example, 1.4 parts by weight of the upper absorbent paper 4 (12.5 g / m 2) made of thin paper having a width of 280 mm and a length of 400 mm is placed on the water absorbent mixed layer part 3. And the edge part 7 of the lower water absorbent paper 4 is folded on the both ends 8, and it embosses, and the uneven | corrugated pattern by the protruding item | line of width less than 3 mm is formed. In this example, 2.4 parts by weight of a polypropylene non-woven fabric (18 g / m 2) is placed on the upper absorbent paper 4 of the absorbent body 1, and under the lower absorbent paper 2 of the absorbent body 1. In addition, 2.5 parts by weight of a waterproof sheet made of polyethylene having a thickness of 20 μm and a specific gravity of 0.92 is formed.
In this example, the titanium paper waste material was pulverized and used, but instead of the titanium paper waste material or a part thereof, the alumina paper waste material, potassium titanate waste material, alumina silica waste material grinding Or a pulverized product of these two or more paper waste materials can be used.
[0052]
The pet sheets obtained in this example were subjected to adsorption tests for ethylene gas, ammonia, pyridine, trimethylamine, acetic acid, hydrogen sulfide and methyl mercaptan. It has been found that ethylene gas, ammonia, pyridine, trimethylamine, acetic acid, hydrogen sulfide and methyl mercaptan have adsorbing ability, but are particularly excellent in acetic acid adsorbing ability.
In the pet sheet 11 of this example, 1.5 ml of a sodium dodecylbenzenesulfonate solution obtained by diluting 1 ml of anionic surfactant sodium dodecylbenzenesulfonate with 74 ml of water is sprayed on the upper part of the water-absorbing mixed layer portion 3. Layer is formed. In this case, the upper water absorbent paper 4 (1.4 g) is disposed on the water absorbent mixed layer portion 3 sprayed with the surfactant solution, and the nonwoven fabric 13 is disposed thereon. For the pet sheets thus prepared, 25 ml of pseudo urine was added to one point of the absorber within 10 seconds by a syringe, and the time that the pseudo urine added to one point remained on the surface without being absorbed by the absorber was measured. However, the time required for the entire amount to be absorbed was 1 second.
[0053]
Example 8
The embodiment shown in FIG. 10 is an example of the animal sheet 11 and the foot wipe mat 11 having a width of 400 mm and a length of 600 mm and a weight per sheet of 52.7 g. In this example, the animal sheet 11 and the foot cleaning mat 11 have an upper water absorbent paper 4 (16 g / m @ 2) of 3.2 g and a width of 360 mm and a lower water absorbent paper 2 (16 g) of 360 mm wide and 560 mm long. / M2) 3.2 g, the end of the lower absorbent paper 2 is overlaid on the end 8 of the upper absorbent paper 4, and 20 g of diaper pulverized powder between the upper and lower absorbent paper And a pulp-based nonwoven fabric pulverized powder 13 g of a paper waste material mixture pulverized powder and a superabsorbent resin 4 g, and an absorbent body 1 having a lower water absorbent mixed layer portion 18 formed of a water absorbent pulverized mixture having a particle size of 3 mm or less is provided. It has been. In the animal sheet 11 and the foot-wiping mat 11 of this example, the absorbent body 1 is formed with an uneven pattern by embossing. In this example, 4.3 g of polypropylene nonwoven fabric (18 g / m 2) having a width of 400 mm and a length of 600 mm is disposed above the upper absorbent paper, and under the lower absorbent paper 2 is a width of 400 mm and a length. It was arranged on 4.6 g of 600 mm polyethylene film, and its calorific value was 5503 kcal / kg. As an animal sheet, 20 cc of pseudo urine was injected into one point within 10 seconds and a water absorption test was carried out, but almost no pseudo urine remained on the upper surface of the nonwoven fabric. Moreover, as a foot wipe mat, there was no difference in a touch with the conventional towel mat, and it was usable repeatedly after drying like a towel mat after use.
[0054]
Example 9
This example is an embodiment of the present invention for a packaging material having the cross-sectional structure shown in FIG.
The packaging material shown in FIG. 10 is formed into a sheet having a width of 315 mm and a length of 640 mm as a gas-absorbing packaging material for vegetables, fresh fish, fruits or flowers, and the weight per sheet is 40 g.
In the sheet-like packaging material 11 of this example, the absorbent body 1 is formed to have a width of 300 mm and a length of 590 mm. In this example, the absorbent body 1 is formed such that the lower absorbent paper 2 (16 g / m @ 2) is 2.8 parts by weight and has a width of 300 mm and a length of 590 mm. A water-absorbing mixed layer portion 18 formed of 24.2 parts by weight of the waste paper mixture pulverized material 16 and 3 parts by weight of the superabsorbent resin 17 dispersed and mixed therewith is formed on the lower absorbent paper 2. The paper waste material mixture pulverized product 16 in the water-absorbing mixed layer portion 18 contains 40% by weight of a defective paper diaper, 30% by weight of nonwoven fabric, and 30% by weight of titanium paper. In this example, 2.8 parts by weight of the upper water absorbent paper 4 (16 g / m 2) having a width of 300 mm and a length of 590 mm is placed on the water absorbent mixed layer portion 18 on the widthwise end portion 8. The end portions 7 of the paper 2 are overlapped, and a plurality of convex portions having a diameter of 3 mm are provided on the upper surface. In the sheet-like packaging material 11 of this example, 3.6 parts by weight of a composite plastic nonwoven fabric 13 (18 g / m 2) of polypropylene and polyethylene is placed on the upper absorbent paper 4 of the absorbent body 1. Under the lower absorbent paper 2 of the absorbent body 1, 3.6 parts by weight of a polyethylene film (18 g / m 2) is disposed.
The packaging material of this example can be used for vegetables, fresh fish, fruits or florets. In particular, in order to prevent the drying of vegetables, fruits or flower buds, it is preferable to use the packaging material wetted with water so that the moisture content of the packaging material is 15 to 50% by weight.
In this example, the titanium paper waste material was pulverized and used, but instead of the titanium paper waste material or a part thereof, the alumina paper waste material, potassium titanate waste material, alumina silica waste material grinding Or a pulverized product of these two or more paper waste materials can be used.
The packaging material obtained in this example was subjected to an adsorption test for ethylene gas, ammonia, pyridine, trimethylamine, acetic acid, hydrogen sulfide and methyl mercaptan. It has been found that ethylene gas, ammonia, pyridine, trimethylamine, acetic acid, hydrogen sulfide and methyl mercaptan have adsorbing ability, but are particularly excellent in acetic acid adsorbing ability.
In the packaging material 11 of this example, 1.5 ml of a sodium dodecylbenzenesulfonate solution obtained by diluting 1 ml of anionic surfactant sodium dodecylbenzenesulfonate with 74 ml of water is placed on the upper part of the water-absorbing mixed layer portion 3. A sprayed layer is formed. In this case, the upper water absorbent paper 4 (1.4 g) is disposed on the water absorbent mixed layer portion 3 sprayed with the surfactant solution, and the nonwoven fabric 16 is disposed thereon. For the packaging material thus prepared, 25 ml of water was added to one point of the absorber within 10 seconds by a syringe, and the time that the water added to the point remained on the surface without being absorbed by the absorber was measured. The time required to absorb the entire amount of water was 1 second. This result was the same compared with the absorber which uses the conventional pulp and super absorbent polymer.
[0055]
Example 10
This example is an embodiment of the present invention for an absorbent sheet having the cross-sectional structure shown in FIG.
The absorbent sheet having the cross-sectional structure shown in FIG. 10 is used, for example, as a water absorbent mat for automobile floor mats, toilets, and toilets, and is formed into a sheet shape having dimensions of 315 mm in width and 640 mm in length. The weight per sheet is 42 g. In the absorbent sheet 11 of this example, the absorbent body 1 is formed to have a width of 300 mm and a length of 590 mm. In this example, the absorbent body 1 is made of a lower absorbent paper 2 (20 g / m @ 2) made of thin paper color paper, which is 3.5 parts by weight, and has a width of 300 mm and a length of 590 mm. Yes. On the lower water-absorbing paper 2, a water-absorbing mixed layer portion 3 formed of 25.8 parts by weight of the waste paper mixture mixture 16 and 2 parts by weight of the superabsorbent resin dispersed and mixed therewith is formed. The pulverized paper waste material mixture in the water-absorbing mixed layer portion 3 contains 30% by weight of newsprint paper waste, 10% by weight of used ticket, 30% by weight of waste paper from rayon paper, and 30% by weight of titanium paper. In this example, 3.5 parts by weight of the upper water absorbent paper 4 (20 g / m 2) formed of thin paper color paper having a width of 300 mm and a length of 590 mm is provided on the water absorbent mixed layer part 3. The end portion 7 of the lower absorbent paper 2 is superposed on the direction end portion 8 and embossed to form a concavo-convex pattern with ridges having a width of 2 mm or less. In this example, 3.6 parts by weight of a composite plastic nonwoven fabric (18 g / m 2) of polypropylene and polyethylene is placed on the upper absorbent paper 4 of the absorbent body 1, and the lower absorbent paper 2 of the absorbent body 1. Is formed by placing 3.6 parts by weight of a composite plastic nonwoven fabric of polypropylene and polyethylene (18 g / m @ 2).
The absorbent mat of this example can be used for automobile floor mats, toilets or toilets. In particular, when it is used so as to prevent drying of vegetables, fruits or flowers, it is preferable to use it soaked in water so that the moisture content of the packaging material is 15 to 50% by weight.
In this example, the titanium paper waste material was pulverized and used, but instead of the titanium paper waste material or a part thereof, the alumina paper waste material, potassium titanate waste material, alumina silica waste material grinding Or a pulverized product of these two or more paper waste materials can be used.
The absorbent mat obtained in this example was subjected to adsorption tests for ethylene gas, ammonia, pyridine, trimethylamine, acetic acid, hydrogen sulfide and methyl mercaptan. It has been found that ethylene gas, ammonia, pyridine, trimethylamine, acetic acid, hydrogen sulfide and methyl mercaptan have adsorbing ability, but are particularly excellent in acetic acid adsorbing ability.
In the absorbent mat 11 of this example, 1.5 ml of a sodium dodecylbenzenesulfonate solution obtained by diluting 1 ml of anionic surfactant sodium dodecylbenzenesulfonate with 74 ml of water is provided above the water-absorbing mixed layer portion 3. A sprayed layer is formed. In this case, 3.5 parts by weight of the upper water absorbent paper 4 is disposed on the water absorbent mixed layer portion 3 sprayed with the surfactant solution, and the nonwoven fabric 16 is disposed thereon. For the absorbent mat thus prepared, 25 ml of water was added to one point of the absorber within 10 seconds by a syringe, and the time that the water added to one point remained on the surface without being absorbed by the absorber was measured. However, the time required for the entire amount to be absorbed was 1 second. This result was the same compared with the absorber which uses the conventional pulp and super absorbent polymer.
[0056]
11, FIG. 12 and FIG. 13 are schematic cross-sectional views of a cross-section in the width direction of an animal sheet according to another embodiment of the present invention.
In the embodiment shown in FIGS. 11 to 13, a plastic film 12 is disposed on the animal sheet 11 below the lower absorbent paper 2 of the absorbent body 1. A nonwoven fabric 13 is disposed on the upper absorbent paper 4 of the absorbent body 1 so as to cover the upper absorbent paper, and an end portion 14 of the nonwoven fabric 13 is an end portion 15 of the lowermost plastic film 12. And it is hot melt bonded via hot melt adhesive.
Since this example is formed as described above, the thin paper is arranged to form the lower absorbent paper 2, and the mixture 16 of the plastic waste material and the paper waste material is placed thereon, on which Water-absorbing resin 17 is sprayed to form water-absorbing mixed layer portion 3. A water absorbent paper formed of one or more thin papers is placed on the water absorbent mixed layer portion 3 as an upper water absorbent paper 4 and is pressure-molded by embossing, and a plurality of the water absorbent paper is formed on the upper surface 5 of the absorbent body 1. The concave / convex pattern is formed by ridges having a width of 2 mm or less, and the absorbent body 1 is integrally formed. The absorbent body 1 thus formed is placed on the plastic film 12, the absorbent body 1 placed on the plastic film 12 is covered with the nonwoven fabric 13, and the end 14 of the nonwoven fabric 13 and the plastic film 12 are covered. It joins with the edge part 15 by hot-melt adhesion, and it cuts to a predetermined dimension, and forms the sheet 11 for animals. In this example, in order to increase the water absorption speed of the animal sheet 11, the surfactant aqueous solution can be sprayed and adhered onto the pulverized material mixture layer 3. In this case, an absorbent body 1 is formed by placing thin paper as the upper absorbent paper 4 on the pulverized product mixed layer to which the surfactant is adhered by spraying, and the formed absorbent body 1 is placed on the plastic film 12. The absorbent body 1 placed on the plastic film 12 is covered with the nonwoven fabric 13 and bonded to the end portion 14 of the nonwoven fabric 13 and the end portion 15 of the plastic film 12 by hot melt bonding, and cut into a predetermined dimension. Thus, the animal sheet 11 having a relatively high water absorption rate is formed.
A water absorption test was performed on the animal sheet 11 of this example. In the water absorption test in this example, 25 ml of simulated urine was added to one point of the nonwoven fabric 13 of the animal sheet 11 within 10 seconds by a syringe, and the added pseudo urine remained on the surface without being absorbed by the absorber. It was done by measuring.
In the case of the absorbent body to which the surfactant was adhered, the pseudo urine remaining on the upper surface of the animal sheet 11 did not stay on the nonwoven fabric, but passed through the nonwoven fabric almost instantaneously and was absorbed by the sheet and disappeared.
[0057]
Example 11
The embodiment shown in FIGS. 20 and 21 shows an embodiment of the animal sheet 11, the water absorbent mat 11 or the packaging material 11 provided with the absorbent body 1 of the embodiment shown in FIG. The embodiment shown is an example of an animal sheet 11 or packaging material 11, and the plastic film 12 at the bottom has a property of not allowing water to pass through. In the embodiment shown in FIG. 21, it is an example of a water-absorbing mat 11 or a packaging material, and the bottom plastic film 12 has a water-permeable property. In this example, the plastic film 12 is supplied with water. A water-permeable hole 21 is formed.
The embodiment shown in FIG. 22 shows an embodiment of the water absorbent mat 11 or the packaging material 11 provided with the absorbent body 1 of the embodiment shown in FIG. 9, and water is permeable to the plastic film 12 at the bottom. Holes are formed.
In this example, the absorbent body 1 has a water absorbent paper formed of one or more thin papers as a lower water absorbent paper 2 to form a bottom surface, and a plastic waste material pulverized product and a paper waste material crushed on the lower water absorbent paper 2. The lower water-absorbing mixed layer portion 18 is formed by placing a mixture of the product and the water-absorbing resin, and the water-absorbing paper formed of one or more thin papers is formed on the lower water-absorbing mixed layer portion 18. Placed as an intermediate water absorbent paper 19, on the intermediate water absorbent paper 19, a mixture of plastic waste material pulverized material, paper waste material pulverized material and water absorbent resin, to form the upper water absorbent mixed layer portion 20, On the upper water-absorbing mixed layer portion 20, water-absorbing paper formed of one or more thin papers is placed as the upper water-absorbing paper 4 that forms the upper surface, and is formed by pressing to form the absorbent body 1. Is done.
In the absorbent body 1 of this example, a plurality of convex portions 5 are formed on the upper surface or the whole of the absorbent body 1 on the upper surface or upward, and are partially continuous with each other so as to separate the convex portions 5. The absorbent body 1 is integrally formed by forming the recessed part 6 or a plurality of recessed parts 6 and forming the projecting parts 5 that surround the recessed parts 6 and are continuous with each other.
In this example, the upper water-absorbing mixed layer portion 20 is formed of a mixture of a plastic waste material pulverized material, a paper waste material pulverized material, and a water-absorbing resin. It may be formed, or may be formed by spraying a water-absorbing resin on a layer formed of a mixture of a pulverized plastic waste material and a pulverized paper waste material. In this example, in order to increase the water absorption speed of the absorbent body 1, a surfactant aqueous solution can be sprayed onto the upper water absorbent mixed layer portion 20 to adhere the surfactant. In this case, the water absorbent paper formed of one or more thin papers can be disposed as the upper water absorbent paper 4 on the water absorbent mixed layer portion to which the surfactant is adhered by spraying.
A water absorption test was performed on the absorbent body 1 of this example. In the water absorption test in this example, 25 ml of simulated urine or water was added to one point of the absorber within 10 seconds with a syringe, and the time for the pseudo urine or water added to the point to remain on the surface without being absorbed by the absorber. It was done by measuring. Compared to the case where the surfactant is not adhered, the absorbent to which the surfactant is adhered has a shortened residual time of pseudo urine by about ¼, and it was confirmed that the use of the surfactant is effective. .
In this example, the upper water-absorbing mixed layer portion 20 formed on the intermediate water-absorbing paper 19 places a mixture 21 of the plastic waste material pulverized material and the paper waste material pulverized material on the intermediate water-absorbing paper 19. The upper water-absorbing mixed layer portion 20 can be formed by spraying the water-absorbing resin 17.
[0058]
Example 12
The embodiment shown in FIG. 15 is a schematic sectional view of an animal sheet of another embodiment of the present invention using the absorbent body of the embodiment shown in FIG. 14, and the embodiment shown in FIG. It is sectional drawing of the outline of the cross section of the width direction about the absorbent mat of other one Example of this invention using the absorber shown in FIG. The animal sheet of the embodiment shown in FIG. 17 is a schematic cross-sectional view of the cross section in the width direction of the absorbent mat of another embodiment of the present invention using the absorbent body shown in FIG. In the embodiment shown in FIGS. 18 and 19, the upper and lower water-absorbing mixed layer portions of the absorbent body of the embodiment shown in FIG. 14 are divided into the upper and lower water-absorbing mixed layer portions in which the water-absorbing resin is unevenly distributed. It is general | schematic sectional drawing of the cross section of the width direction about the sheet | seat for animals of other one Example of this invention which uses the made absorbent body. The embodiment shown in FIGS. 20 and 21 uses the absorbent body in which the upper water-absorbing mixed layer portion of the absorber shown in FIG. 14 is formed of a water-absorbing resin or a surfactant and a water-absorbing resin. It is general | schematic sectional drawing of the cross section of the width direction about the sheet | seat for animals of other one Example of invention.
[0059]
Example 13
The absorbent mat of the embodiment shown in FIG. 16 shows the outline of the cross-sectional structure of the absorbent mat of another embodiment of the present invention. The absorbent mat 11 in these examples is an example of the absorbent mat 11 having a width of 300 mm and a length of 450 mm, for example. In the absorbent mat 11 of the embodiment shown in FIG. 16, the absorbent body 1 in the embodiment shown in FIG. 14 is used. In this example, a polyethylene film 12 (2.5 g) in which a circular hole 21 having a diameter of about 5 to 7 mm is formed with an opening area of 30 to 40% under the lower absorbent paper 2 of the absorbent body 1. A polypropylene nonwoven fabric 13 (2.4 g) is disposed on the upper absorbent paper 4 of the absorbent body 1 so as to cover the upper absorbent paper 4. In this example, the water-permeable polyethylene film 12 having the water-permeable holes 21 is used, but instead of the polyethylene film 12 having the water-permeable holes 21, a polyethylene nonwoven fabric and a polypropylene nonwoven fabric having the property of allowing water to permeate are used. A nonwoven fabric having a property of allowing water to pass through can be used.
[0060]
Example 14
In the animal sheet of the embodiment shown in FIG. 17, the absorbent body 1 has a water-impermeable plastic film 12 forming the bottom. In this example, the lower water-absorbing mixed layer portion 18 is 10% by weight of laminated paper waste containing 15% by weight of polyethylene film, 15% by weight of newspaper waste, 15% by weight of cardboard waste, and 55% by weight of plastic film waste. And a mixture containing 5% by weight of the superabsorbent resin is pulverized into a mixture having a particle size of 3 mm or less. Sanitary napkin defective product 10% by weight, plastic content rate 50% by weight, sanitary materials such as disposable diapers and sanitary napkins 20% by weight, plastic film scraps 30% by weight and superabsorbent resin 10% by weight Can be formed by using a pulverized mixture obtained by pulverizing the material to a particle size of 3 mm or less. In this case, the composition of the absorbent body 1 is 55% by weight of plastics, 23% by weight of pulps, 9% by weight of waste inorganic fiber paper such as titanium dioxide, and 13% by weight of superabsorbent resin. In the mat of this example, the end portions 7 in the width direction of the lower absorbent paper 2 are folded on the end portions 22 in the width direction of the intermediate absorbent paper 19, and the upper water absorbent mixed layer portion 20 is It is fixed between the upper water absorbent paper 4 and the intermediate water absorbent paper 19, and the upper water absorbent paper is placed on the upper water absorbent mixed layer portion, and the nonwoven fabric is placed thereon, so that they are integrally formed.
[0061]
Example 15
The embodiment shown in FIGS. 18 and 19 is an example of an animal sheet. In this example, the lower water absorbent mixed layer portion 18 is formed on the lower water absorbent paper 2. In this example, the lower water-absorbing mixed layer portion 18 places the mixture 16 of the plastic waste material pulverized material and the paper waste material pulverized material, and sprays the water-absorbing resin 17 thereon, so that the distribution of the water-absorbing resin is biased. Formed. A water absorbent paper formed of one or more thin papers is placed on the lower water absorbent mixed layer portion 18 as an intermediate water absorbent paper 19, and the lower water absorbent paper is placed on the end 22 of the intermediate water absorbent paper 19. 2 and the end portions 7 in both width directions are folded, and the lower water absorbent mixed layer portion 18 is fixed between the lower water absorbent paper 2 and the intermediate water absorbent paper 19. In this example, an upper water absorbent mixed layer portion 20 is formed on the intermediate water absorbent paper 19. The lower water-absorbing mixed layer portion 18 is formed by placing a mixture 76 of a plastic waste material pulverized material and a paper waste material pulverized material and spraying a water-absorbing resin 17 thereon, and the upper water-absorbing mixed layer portion 20 is Similarly to the lower water-absorbing mixed layer portion 18, a mixture 78 of a plastic waste material pulverized product and a paper waste material pulverized product is placed, and a water-absorbing resin 79 is sprayed thereon. A water absorbent paper formed of one or more thin papers is placed on the upper water absorbent mixed layer portion 20 as the upper water absorbent paper 4 and is integrally formed as the absorbent body 1 by embossing. An uneven pattern by embossing is formed on the top or the whole of the absorber 1.
In this example, a polyethylene film 12 (2.5 g) is disposed under the lower absorbent paper 2 of the absorbent body 1. A polypropylene nonwoven fabric 13 (2.4 g) is disposed on the upper absorbent paper 4 of the absorbent body 1 so as to cover the upper absorbent paper, and the end 14 of the polypropylene nonwoven fabric 13 is the lowermost polyethylene. The animal sheet 11 is formed by joining with the end 15 of the film 12 via hot melt adhesive and hot melt bonding and cutting to a predetermined size.
[0062]
Example 16
The embodiment shown in FIGS. 20 and 21 is an example of the animal sheet 11 having a width of 300 mm and a length of 450 mm. In the animal sheet 11 in this example, the absorbent body 1 in which the upper water-absorbing mixed layer portion of the absorbent body 1 in the embodiment shown in FIG. 14 is formed of a highly water-absorbing resin is used. In this example, a polyethylene film 12 (2.5 g) is disposed under the lower absorbent paper 2 of the absorbent body 1. A polypropylene nonwoven fabric 13 (2.4 g) is disposed on the upper absorbent paper 4 of the absorbent body 1 so as to cover the upper absorbent paper, and the end 14 of the polypropylene nonwoven fabric 13 is the lowermost polyethylene. The film 12 is hot-melt bonded to the end 15 of the film 12 via a hot-melt adhesive.
In this example, between the upper absorbent paper 4 (1.4 g) of 280 mm and length 400 mm and the lower absorbent paper 2 (1.7 g) of width 340 mm and length 400 mm, intermediate water absorption of width 280 mm and length 400 mm. Paper 19 (1.4 g) is provided.
Between the lower absorbent paper 2 and the intermediate absorbent paper 19, 10% by weight of laminated paper waste containing 16% by weight of polyethylene film, 15% by weight of newsprint waste, 15% by weight of corrugated paper waste, 55% by weight of plastic film waste and high water absorption. The lower water-absorbent mixed layer portion 18 is filled with a water-absorbent pulverized mixture (25.6 g) obtained by pulverizing a mixture containing 5% by weight of a functional resin to a particle size of 3 mm or less. In this example, a highly water absorbent resin (2 g) is filled as the upper water absorbent mixed layer portion 20 between the upper water absorbent paper 4 and the intermediate water absorbent paper 8.
The composition of the absorbent body 1 in this example is 52.5% by weight of plastics, 35.6% by weight of pulps, and 11.9% by weight of a superabsorbent resin.
In this example, the upper water-absorbing paper 4, the upper water-absorbing mixed layer portion 20, the intermediate water-absorbing paper 19, the lower water-absorbing mixed layer portion 18 and the lower water-absorbing paper 2 are combined in the animal sheet 11 and 7 mm on the upper surface. A plurality of convex portions 5 having a diameter and concave portions 6 that surround the convex portions 5 and are continuous with each other are formed, and are compressed into a plate shape. In this example, the thickness of the absorber 1 was 1.4 mm, and the height of the convex portion was 2.7 mm including the thickness of the absorber.
In the absorbent body 1 of the absorbent mat 11 of this example, the upper absorbent mixed layer portion 20 has an upper portion of the upper absorbent mixed layer portion 20 in which 1 ml of anionic surfactant sodium dodecylbenzenesulfonate is diluted with 74 ml of water. An adhesion layer of anionic surfactant sodium dodecylbenzenesulfonate is formed by spraying 1.5 ml of the solution. The upper absorbent paper 4 is disposed on the upper absorbent mixed layer portion 20 sprayed with this surfactant solution.
The absorbent mat 11 in this example has a combustion heat before use of 7090 kilocalories (kcal) / kg. However, even after double the amount of water is absorbed, it does not cause poor combustion.
In the animal sheet of this example, as can be seen with reference to FIG. 14 showing an example of an absorbent sheet, the end 7 of the lower absorbent paper 2 is folded over the end 22 of the intermediate absorbent paper 19. The end 22 of the intermediate water absorbent paper 19 is pressed by the end 7 of the lower water absorbent paper 2 to stably hold the pulverized mixture of the lower water absorbent mixed layer 18 between the two water absorbent papers.
[0063]
Example 17
FIG. 22 shows a process of the embodiment for manufacturing the animal sheet shown in FIG.
In this example, the animal sheet 11 is placed between a lower absorbent paper 2 (1.7 g) having a width of 340 mm and a length of 400 mm and an upper absorbent paper 4 (1.4 g) having a width of 280 mm and a length of 400 mm. Is a pulverized product (25 g) of 4 mm or less of a classified product of defective paper diapers containing plastics (56 wt%), pulps (40 wt%) and a superabsorbent resin (4 wt%). The surfactant is attached to the upper part of the pulverized product of the water-absorbing mixed layer portion 3 by application by spraying or the like. The upper water absorbent paper 4, the lower water absorbent paper 2 and the water absorbent mixed layer portion 3 are integrally formed by compression molding into a plate shape on the upper surface by embossing. The upper surface of the upper absorbent paper 4 of the absorbent body 1 is covered with a polypropylene nonwoven fabric 13, and the lower surface of the lower absorbent paper 2 of the absorbent body 1 is covered with a polyethylene film 12.
The roll 25 of the lower water absorbent paper 2 is pulled out by the water absorbent paper feed roller 26 and fed below the supply roller 28 for the crushed material 27 of the defective plastic diaper, which is relatively rich in plastic. The crushed material 27 of the defective paper diaper, which is relatively rich in plastic, is pulverized to a particle size of 4 mm or less by the pulverizer 30 through the supply pipe 29, and is supplied as the pulverized material 27, which is relatively rich in plastic of the defective paper diaper. It is supplied from the roller 30 onto the lower water absorbent paper 2 to form the water absorbent mixed layer portion 3. In this example, the classified product pulverized product 27 rich in plastic of the defective paper diaper has a plastic content of 56% by weight, a pulp content of 40% by weight, and a high water-absorbent resin content. Was 4% by weight. The supply of the crushed product 27 of the defective paper diaper rich in plastic onto the lower absorbent paper 2 is adjusted so that the amount of the pulverized product of the classified product rich in defective diaper on the lower absorbent paper 2 is constant. . The lower absorbent paper 2 to which the classified pulverized product 27 rich in plastics of defective paper diapers is supplied is sent to the spraying portion 32 of the surfactant 31, and the surfactant 31 is transferred from the sprayer 33 of the surfactant 31 to the lower absorbent paper 2. Spray on top of the defective diaper classified plastic rich crushed material above.
The lower absorbent paper 2 sprayed with the surfactant 31 is sent to the supply location 34 of the upper absorbent paper 4, pulled out from the roll 35 of the upper absorbent paper 4 by the drawing roller 36, and from the supply roller 37. 31 is supplied on a plastic-rich pulverized product of a sprayed paper diaper class. The belt-like stratified product in which the lower and upper absorbent papers 2 and 4 are arranged is sent to the molding machine 38 and superimposed on the end 7 of the lower absorbent paper 2 and the end 8 of the upper absorbent paper 4 and embossed. Are integrally formed by compression. The band-shaped stratified compact 39 on which the concavo-convex pattern formed by embossing is sent to the band-shaped compact 40 and is cut into a stratified compact having a length of 400 mm. Below the stratified molded body obtained by cutting with the strip-shaped molded body cutter 40, the polyethylene film 12 for the back film is supplied from the lower side from the roll 41 of the polyethylene film 12 from the supply roller 42, and the stratified molded body is a polyethylene film. 12 and is sent to a portion 43 where the polypropylene nonwoven fabric 13 is covered.
The polypropylene non-woven fabric 13 is drawn from the roll 44 of the polypropylene non-woven fabric 13 by the supply roller 45 and sent to the location where the non-woven fabric 13 is supplied. The hot melt adhesive is sprayed from the sprayer 46 in the process of feeding the nonwoven fabric. The polypropylene nonwoven fabric 13 sprayed with the hot melt adhesive is placed on the stratified compact. The stratified compact on which the polypropylene nonwoven fabric 13 is placed is sent to the side seal machine 47, and both side portions are pressure-bonded and bonded by a hot melt adhesive. The stratified molded body with both side parts bonded is sent to the end seal machine 48 and bonded at both ends in the longitudinal direction, sent to the product cutter 49, cut to a predetermined size, and the product is sent from the product feed path 50. Sent. The product cut by the product cutter 49 is folded by a folding machine (not shown), packaged by a packaging machine (not shown), and shipped.
[0064]
Example 18
FIG. 23 shows a process diagram of an embodiment of a process for producing the animal sheet of the embodiment of the present invention shown in FIG. In this example, the weight (gram) represents the weight per sheet for animal.
In the animal sheet 11 of this example, a polyethylene film 12 (2.5 g) is disposed under the lower absorbent paper 2 (1.7 g) having a width of 340 mm and a length of 400 mm of the absorbent body 1. On the upper absorbent paper 4 (1.4 g) having a width of 280 mm and a length of 400 mm of the body 1, a polypropylene nonwoven fabric 13 (2.4 g) is disposed so as to cover the upper absorbent paper 4. The end 14 of the polypropylene nonwoven fabric 13 is hot-melt bonded to the end 15 of the polyethylene film 12 via a hot-melt adhesive. In the absorbent body 1 in this example, an intermediate absorbent paper 8 (1.4 g) having a width of 280 mm and a length of 400 mm is disposed between the upper absorbent paper 4 and the lower absorbent paper 2.
In this example, between the lower absorbent paper 2 and the intermediate absorbent paper 19, 10% by weight of laminated paper waste containing 16% by weight of polyethylene film, 15% by weight of newspaper waste, 15% by weight of corrugated paper waste, and 55% by weight of plastic film waste. Lower paper waste material mixture 51 (20 g) containing 5% by weight and high water absorption resin is pulverized to a particle size of 3 mm or less, and a lower paper waste material pulverized material mixture layer is disposed. In addition, between the upper water absorbent paper 4 and the intermediate water absorbent paper 19, 10% by weight of laminated paper waste containing 16% by weight of polyethylene film, 15% by weight of newsprint paper, 15% by weight of corrugated paper waste, plastic film waste Upper paper waste material pulverized material mixture 23 (10 g) containing 55% by weight and superabsorbent resin 5% by weight was pulverized to a particle size of 3 mm or less. And the layer 23 is disposed, the upper absorbent mixture layer portion 20 is formed.
[0065]
Example 19
In FIG. 23, the roll 25 of the lower water absorbent paper 2 forming the lower water absorbent paper layer portion is pulled out by the feed roller 26 of the lower water absorbent paper 2 to form the lower water absorbent mixed layer portion 18. The waste material mixture 16 is fed below the supply roller 52. The lower paper waste material mixture 51 is pulverized to a particle size of 3 mm or less by a pulverizer 54 through a supply pipe 53 and supplied as a lower paper waste material pulverized material mixture 16 from the supply roller 52 onto the lower absorbent paper 2. In this example, the lower paper waste material pulverized mixture 16 is composed of 10% by weight of laminated paper waste containing 16% by weight of polyethylene film, 15% by weight of newsprint waste, 15% by weight of corrugated paper waste, 55% by weight of plastic film waste, and a superabsorbent resin. The weight of the pulverized paper waste material mixture containing 5% by weight and pulverized to a particle size of 3 mm or less was 20 parts by weight. The pulverized lower paper waste material mixture is supplied onto the lower water absorbent paper 2 from the supply roller 52 so that the amount of the lower waste material mixture pulverized material is constant on the lower water absorbent paper 2. The water absorbing mixed layer portion 18 is formed. The lower water absorbent paper 2 on which the lower water absorbent mixed layer portion 18 is formed is sent to the spray area 55 of the surfactant, and the surfactant is diluted with water from the surfactant sprayer 56 to 75 times the surfactant. The diluted aqueous solution 57 is sprayed on the lower water absorbent mixed layer portion 18 formed on the lower water absorbent paper 2. The lower water absorbent mixed layer portion 18 sprayed with the surfactant diluted aqueous solution 57 is sent together with the lower water absorbent paper 2 to the supply location 60 of the intermediate water absorbent paper 19 forming the intermediate water absorbent paper layer portion. On the other hand, the intermediate water-absorbing paper 19 is sent from the roll 61 of the intermediate water-absorbing paper 19 to the supply location 60 of the intermediate water-absorbing paper 19, where it is guided to the supply roller 62 of the intermediate water-absorbing paper 19 and An intermediate water absorbent paper 19 is placed on the dispersed lower water absorbent mixed layer portion 18. The lower water absorbent paper 2 in which the intermediate water absorbent paper 19 is disposed on the lower water absorbent mixed layer portion 18 is sent to an embossing compressor 63 through a folding device (not shown), where the lower water absorbent paper is provided. 2 in the width direction, both ends 7 are bent above the end 22 of the intermediate water-absorbing paper 19 and then compressed to stabilize the intermediate water-absorbing paper 19. The lower absorbent paper 2 in which the end 7 of the lower absorbent paper 2 is folded on the end 22 of the intermediate absorbent paper 19 is used to supply the crushed material of the upper paper waste material mixture 71 in order to form the upper absorbent mixture layer 20. It is sent below the roller 72. The upper paper waste material mixture 71 is sent to the pulverizer 74 via the supply pipe 73, and is pulverized to a particle size of 3 mm or less by the pulverizer 74, and is fed from the supply roller 72 to the intermediate water absorbing paper 19 and the upper paper waste material pulverized material mixture. It is supplied on both ends in the width direction of the lower absorbent paper 2. In this example, the composition of the pulverized mixture of upper paper waste material is 10% by weight of laminated paper waste containing 16% by weight of polyethylene film and 15% of waste paper waste paper, as in the case of the lower paper waste material pulverized material mixture 16 of the lower water absorbent mixed layer portion 18. The weight of the upper paper waste material pulverized mixture 23 was 10 parts by weight, including 15% by weight, 15% by weight of corrugated cardboard, 55% by weight of plastic film waste, and 5% by weight of a superabsorbent resin. The upper paper waste material pulverized product mixture pulverized to a particle size of 3 mm or less is fed from the supply roller 72 to the intermediate water absorbent paper 19 and the lower part so that the amount of the upper paper waste material pulverized product mixture is constant on the intermediate water absorbent paper 19. The upper water-absorbing mixed layer portion 20 is formed by being supplied on both ends 7 in the width direction of the water absorbent paper 2. The lower absorbent paper 2 on which the upper water-absorbing mixed layer portion 20 is formed is sent to the spray area 66 of the surfactant, and the surfactant diluted from the surfactant sprayer 67 to 75 times the surfactant is diluted. The aqueous solution 68 is sprayed on the upper water-absorbing mixed layer portion 20 formed on the both ends 7 in the width direction of the intermediate water-absorbing paper 19 and the lower water-absorbing paper 2. The upper water absorbent mixed layer portion 20 sprayed with the surfactant diluted aqueous solution 68 is sent together with the lower water absorbent paper 2 to the supply location 34 of the upper water absorbent paper 4 where the upper water absorbent paper 4 is placed. The upper water absorbent paper 4 is pulled out from the roll 35 of the upper water absorbent paper 4 through the drawing roller 36, and is supplied by the supply roller 37 onto the upper water absorbent mixed layer portion 20 on which the high water absorbent resin 24 is dispersed, Be placed. The band-shaped stratified molded article in which the lower water absorbent paper layer 2, the intermediate water absorbent paper 19, the upper water absorbent paper mixture layer part 20 and the upper water absorbent paper 4 are arranged in that order on the lower water absorbent paper 2 is transferred to the embossing machine 38. Embossed uneven pattern sent and molded Shape Made. The strip-shaped stratified molded body in which the convex portions 5 and the concave portions 6 are formed on the strip-shaped stratified molded body is sent to the strip-shaped molded body cutter 40 and cut into a stratified molded body having a length of 400 mm. Below the stratified molded body cut by the belt-shaped molded body cutter 40, the polyethylene film 12 for the back film is drawn from the roll 41 of the polyethylene film 12 from below and supplied from the supply roller 42, and the stratified molded body is made of polyethylene. It is placed on the film 12 and sent to a location 45 where the polypropylene nonwoven fabric 13 is covered.
The polypropylene nonwoven fabric 13 is fed from the roll 44 of the polypropylene nonwoven fabric 13, and the hot melt adhesive is sprayed from the sprayer 46 on the way. The polypropylene nonwoven fabric 13 sprayed with the hot melt adhesive is placed on the stratified compact. The stratified compact on which the polypropylene nonwoven fabric 13 is placed is sent to the side sealing machine 47, and the width direction both side end portions 14 of the nonwoven fabric 13 and the width direction both side end portions 15 of the polyethylene film 12 are pressure-bonded and hot melt bonded. Bonded by the agent. The stratified molded body with both ends bonded is sent to an end seal machine 48 and bonded at both ends in the longitudinal direction, sent to a product cutter 49, cut into a predetermined dimension, and made into a product. Sent from the product feed path 50. The product cut by the product cutter 49 is folded by a folding machine (not shown), packaged by a packaging machine (not shown), and shipped.
[0066]
Example 20
In this example, the absorbent mat shown in FIG. 16 can be manufactured by applying the manufacturing process shown in FIG. In this example, the weight shown is the weight per absorbent mat.
In the absorbent mat 11 of this example, a circular hole 21 having a diameter of about 5 to 7 mm is formed under the lower absorbent paper 2 (1.7 g) having a width of 340 mm and a length of 400 mm of the absorbent body 1 to 10 to 30%. A polyethylene film 12 (2.5 g) formed with an opening area of 2 mm is disposed, and the upper water absorbing paper 4 (1.4 g) having a width of 280 mm and a length of 400 mm of the absorbent body 1 is placed on the upper water absorbing paper. A polypropylene non-woven fabric 13 (2.4 g) is disposed so as to cover the paper 4, and the end 14 of the polypropylene non-woven 13 is connected to the end 15 of the polyethylene film 12 via a hot-melt adhesive. It is glued. In the absorbent body 1 in this example, an intermediate absorbent paper 19 (1.4 g) having a width of 280 mm and a length of 400 mm is disposed between the upper absorbent paper 4 and the lower absorbent paper 2.
In this example, a defective paper diaper 27 containing 35% by weight of a plastic material, 50% by weight of a pulp material and 15% by weight of a superabsorbent resin is pulverized between the lower absorbent paper 2 and the intermediate absorbent paper 19 to a particle size of 3 mm or less. 20 g of the waste paper diaper waste material crushed material is filled as the lower water absorbent mixed layer portion 18, and 10 g of the waste paper diaper waste material crushed material is filled between the upper water absorbent paper 4 and the intermediate water absorbent paper 19. The upper water-absorbing mixed layer portion 20 is formed.
When the absorbent mat 11 of the embodiment shown in FIG. 16 is manufactured, it is manufactured by the same manufacturing process as the animal sheet 11 of the embodiment shown in FIG. 17, but when manufacturing the absorbent mat 11, Compared with the case where the animal sheet 11 of the embodiment shown in FIG. 24 is manufactured, a circular hole having a diameter of about 5 to 7 mm is formed only in the polyethylene film 12 for the back film disposed under the absorbent body 1. 11 differs only in that it is formed with an opening area of 30 to 40%.
[0067]
Example 21
FIG. 24 is a process chart showing an embodiment of the process for manufacturing the animal sheet of the embodiment of the present invention shown in FIGS. 18 and 19. In this example, the weight (gram) represents the weight per sheet for animal.
In the animal sheet 11 of this example, a polyethylene film 12 (2.5 g) is disposed under the lower absorbent paper 2 (1.7 g) having a width of 340 mm and a length of 400 mm of the absorbent body 1. On the upper absorbent paper 4 (1.4 g) having a width of 280 mm and a length of 400 mm of the body 1, a polypropylene nonwoven fabric 13 (2.4 g) is disposed so as to cover the upper absorbent paper 4. The end 14 of the polypropylene nonwoven fabric 13 is hot-melt bonded to the end 15 of the polyethylene film 12 via a hot-melt adhesive. In the absorbent body 1 in this example, an intermediate absorbent paper 8 (1.4 g) having a width of 280 mm and a length of 400 mm is disposed between the upper absorbent paper 4 and the lower absorbent paper 2.
In this example, between the lower absorbent paper 2 and the intermediate absorbent paper 19, 10% by weight of laminated paper waste containing 16% by weight of polyethylene film, 15% by weight of newspaper waste, 15% by weight of cardboard waste and 55% by weight of plastic film waste. % Of the lower paper waste material mixture 51 (20 g) containing 5% by weight of the lower paper waste material mixture layer 16 formed by pulverizing to a particle size of 3 mm or less. A layer portion 18 is formed, and between the upper absorbent paper 4 and the intermediate absorbent paper 19, 10% by weight of laminated paper waste containing 16% by weight of polyethylene film, 15% by weight of newspaper waste, and 15% by weight of corrugated paper waste. And 55% by weight of plastic film waste The 5% by weight of the superabsorbent resin 24 is dispersed in the upper paper waste material pulverized material mixture layer portion 23 obtained by pulverizing the upper paper waste material mixture mixture 23 (10 g) to a particle size of 3 mm or less. Is formed.
[0068]
Example 22
In FIG. 24, the roll 25 of the lower water absorbent paper 2 forming the lower water absorbent paper layer portion is pulled out by the feed roller 26 of the lower water absorbent paper 2 to form the lower water absorbent mixed layer portion 18. The waste material mixture 16 is fed below the supply roller 52. The lower paper waste material mixture 51 is pulverized to a particle size of 3 mm or less by a pulverizer 54 through a supply pipe 53 and supplied as a lower paper waste material pulverized material mixture 16 from the supply roller 52 onto the lower absorbent paper 2. In this example, the lower paper waste material pulverized mixture 16 includes 10% by weight of laminated paper waste containing 16% by weight of polyethylene film, 15% by weight of newsprint waste, 15% by weight of cardboard waste and 55% by weight of plastic film waste, and 3 mm or less. The weight of the pulverized paper waste material mixture 16 pulverized to a particle size of 20 g was 20 g. The pulverized lower paper waste material mixture 16 is supplied onto the lower water absorbent paper 2 from the supply roller 52 so that the amount of the lower waste material mixture pulverized material 16 is constant on the lower water absorbent paper 2. The lower water absorbing mixed layer portion 18 is formed. The lower water absorbent paper 2 on which the lower water absorbent mixed layer portion 18 is formed is sent to the spray area 55 of the surfactant, and the surfactant is diluted with water from the surfactant sprayer 56 to 75 times the surfactant. The diluted aqueous solution 57 is sprayed on the lower water absorbent mixed layer portion 18 formed on the lower water absorbent paper 2. The lower water absorbent paper 2 in which the surfactant diluted aqueous solution 57 is sprayed on the lower water absorbent mixed layer portion 18 is sent to the spraying portion 58 of the super absorbent polymer 17, where the super absorbent polymer spraying device 59 provides the super absorbent polymer. Resin 17 is sprayed, and the sprayed superabsorbent resin 17 is partially , The surfactant-diluted aqueous solution 57 adheres to the sprayed part, and the other part moves and mixes in the lower paper waste material pulverized product mixture 16. Superabsorbent resin 17 is sprayed and the lower paper waste material mixture 16 is mixed. Mixed The lower water-absorbing mixed layer portion 18 is fed together with the lower water-absorbing paper 2 to the supply location 60 of the intermediate water-absorbing paper 19 that forms the intermediate water-absorbing paper layer portion. On the other hand, the intermediate water-absorbing paper 19 is sent from the roll 61 of the intermediate water-absorbing paper 19 to the supply location 60 of the intermediate water-absorbing paper 19, where it is guided to the supply roller 62 of the intermediate water-absorbing paper 19, It is placed on the lower water-absorbing mixed layer portion 18 on which the superabsorbent resin 17 is dispersed. The lower water absorbent paper 2 in which the intermediate water absorbent paper 19 is disposed on the lower water absorbent mixed layer portion 18 is sent to the compressor 63 via a folder (not shown), where the width of the lower water absorbent paper 2 is increased. Both ends 7 in the direction are bent above the end 22 of the intermediate water-absorbing paper 19 and are pressed to stabilize the intermediate water-absorbing paper 19. The lower absorbent paper 2 in which the end 7 of the lower absorbent paper 2 is folded on the end 22 of the intermediate absorbent paper 19 is supplied with the upper paper waste material mixture 23 to form the upper absorbent mixed layer portion 20. It is sent below the roller 65. The upper paper waste material mixture 64 is sent to the pulverizer 54 ′ through the supply pipe 53 ′, and is pulverized to a particle size of 3 mm or less by the pulverizer 54 ′. The absorbent paper 19 and the lower absorbent paper 2 are supplied on both ends in the width direction. In this example, the composition of the pulverized mixture of upper paper waste material 23 is 10% by weight of laminated paper waste containing 16% by weight of polyethylene film and the waste of newsprint paper, as in the case of the lower paper waste material pulverized mixture 16 of the lower water absorbing mixed layer portion 18. It contained 15% by weight, 15% by weight of cardboard waste and 55% by weight of plastic film waste, and the weight of this upper paper waste material mixture mixture 23 was 10 g. The upper paper waste material pulverized mixture mixture 23 pulverized to a particle size of 3 mm or less is fed from the supply roller 65 to the intermediate water absorbent paper 19 so that the amount of the upper paper waste material pulverized mixture mixture 23 is constant on the intermediate water absorbent paper 19. And it supplies on the width direction both ends 7 of the lower water absorbing paper 2, and forms the upper water absorbing mixed layer part 20. FIG. The lower absorbent paper 2 on which the upper water-absorbing mixed layer portion 20 is formed is sent to the spray area 66 of the surfactant, and the surfactant diluted from the surfactant sprayer 67 to 75 times the surfactant is diluted. The aqueous solution 68 is sprayed on the upper water-absorbing mixed layer portion 20 formed on the both ends 7 in the width direction of the intermediate water-absorbing paper 19 and the lower water-absorbing paper 2. The lower water absorbent paper 2 in which the surfactant diluted aqueous solution 68 is sprayed on the upper water absorbent mixed layer portion 20 is sent to the spraying portion 69 of the high water absorbent resin 24, and the high water absorbent resin spraying device 70 supplies the highly water absorbent resin. 24 is sprayed, and the sprayed superabsorbent resin 24 is partly , The surfactant-diluted aqueous solution 68 adheres to the sprayed portion, and the other part moves and mixes in the upper paper waste material pulverized product mixture 23. The upper water-absorbing mixed layer portion 20 mixed with a part of the sprayed superabsorbent resin 24 is sent together with the lower water-absorbing paper 2 to the supply location 34 of the upper water-absorbing paper 4, where the upper water-absorbing paper 4 is placed. It is done. The upper water absorbent paper 4 is pulled out from the roll 35 of the upper water absorbent paper 4 through the drawing roller 36, and is supplied by the supply roller 45 onto the upper water absorbent mixed layer portion 20 on which the highly water absorbent resin 24 is dispersed, Be placed. On the lower water absorbent paper 2, the belt-like layered product in which the lower water absorbent mixed layer portion 18, the intermediate water absorbent paper 19, the upper water absorbent mixed layer portion 20 and the upper water absorbent paper 4 are arranged in that order is placed on the embossing molding machine 38. The concavo-convex pattern is formed by embossing having a plurality of ridges of approximately 2 mm. The band-shaped stratified molded body in which the uneven pattern by the embossing is formed on the band-shaped stratified article is sent to the band-shaped molded body cutter 40 and cut into a stratified molded body having a length of 400 mm. Below the stratified molded product obtained by cutting the belt-shaped stratified molded product, the polyethylene film 12 for the back film is drawn from the roll 41 of the polyethylene film 12 from below and supplied from the supply roller 42, and the stratified molded product is obtained. Is placed on the polyethylene film 12 and sent to the location 45 where the polypropylene nonwoven fabric 13 is covered.
The polypropylene nonwoven fabric 13 is fed from the roll 44 of the polypropylene nonwoven fabric 13, and the hot melt adhesive is sprayed from the sprayer 46 on the way. The polypropylene nonwoven fabric 13 sprayed with the hot melt adhesive is placed on the stratified compact. The stratified compact on which the polypropylene nonwoven fabric 13 is placed is sent to the side sealing machine 47, and the width direction both side end portions 14 of the nonwoven fabric 13 and the width direction both side end portions 15 of the polyethylene film 12 are pressure-bonded and hot melt bonded. Bonded by the agent. The stratified molded body with both ends bonded is sent to an end seal machine 48 and bonded at both ends in the longitudinal direction, sent to a product cutter 49, cut into a predetermined dimension, and made into a product. Sent from the product feed path 50. The product cut by the product cutter 49 is folded by a folding machine (not shown), packaged by a packaging machine (not shown), and shipped.
[0069]
Example 23
FIG. 25 shows a flow chart of one embodiment of a process for producing the animal sheet shown in FIGS. 20 and 21 of the present invention. In this example, the weight shown is the weight per animal sheet.
In the animal sheet 11 of this example, a polyethylene film 12 (2.5 g) is disposed under the lower absorbent paper 2 (1.7 g) having a width of 340 mm and a length of 400 mm of the absorbent body 1. On the upper absorbent paper 4 (1.4 g) having a width of 280 mm and a length of 400 mm, a polypropylene nonwoven fabric 13 (2.4 g) is disposed so as to cover the upper absorbent paper 4. The end 14 of the nonwoven fabric 13 is hot-melt bonded to the end 15 of the polyethylene film 12 via a hot-melt adhesive. In the absorbent body 1 in this example, an intermediate absorbent paper 8 (1.4 g) having a width of 280 mm and a length of 400 mm is disposed between the upper absorbent paper 4 and the lower absorbent paper 2.
In this example, between the lower absorbent paper 2 and the intermediate absorbent paper 19, 10% by weight of laminated paper waste containing 16% by weight of polyethylene film, 15% by weight of newspaper waste, 15% by weight of corrugated paper waste, and 55% by weight of plastic film waste. % Of the water absorbent resin and 5% by weight of the superabsorbent resin and pulverized paper diaper waste mixture mixture (25.6 g) pulverized to a particle size of 3 mm or less is filled as the lower water absorbent mixed layer portion 18. The intermediate water absorbent paper 19 is filled with a highly water absorbent resin (2 g) to form an upper water absorbent mixed layer portion 20.
[0070]
In FIG. 25, the roll 25 of the lower water absorbent paper 2 forming the lower water absorbent paper layer portion is pulled out by the feed roller 26 of the lower water absorbent paper 2 and sent below the supply roller 28 of the diaper waste material mixture pulverized material 27. . The disposable diaper waste material 27 is pulverized to a particle size of 3 mm or less by a pulverizer 30 through a supply pipe 29 and supplied as a diaper waste material mixture pulverized material 27 from the supply roller 28 onto the lower absorbent paper 2. Paper diaper waste mixture pulverized product 16 contains 10% by weight of laminated paper waste containing 16% by weight of polyethylene film, 15% by weight of newspaper waste, 15% by weight of cardboard waste, 55% by weight of plastic film waste and 5% by weight of superabsorbent resin To do. The crushed paper diaper waste material mixture pulverized product 16 is supplied onto the lower water absorbent paper 2 from the supply roller 28 so that the amount of the paper diaper waste material mixture pulverized material 16 is constant on the lower water absorbent paper 2. The water absorbing mixed layer portion 18 is formed. The lower water absorbent paper 2 on which the lower water absorbent mixed layer portion 18 is formed is sent to the supply location 60 of the intermediate water absorbent paper 19 that forms the intermediate water absorbent paper layer portion. On the other hand, the intermediate water-absorbing paper 19 is fed from the roll 61 of the intermediate water-absorbing paper 19 to the supply location 60 of the intermediate water-absorbing paper 19, where it is guided to the supply roller 62 of the intermediate water-absorbing paper 19, It is placed on the water-absorbing mixed layer portion 18. The lower water absorbent paper 2 in which the intermediate water absorbent paper 19 is disposed on the lower water absorbent mixed layer portion 18 is sent to the compressor 63 via a folding device (not shown), where the lower water absorbent paper 2 is The end 7 is folded onto the end 22 of the intermediate water-absorbing paper, pressurized and compressed, and the end 7 of the lower water-absorbing paper 2 is bent above the end 22 of the intermediate water-absorbing paper 19 to obtain the intermediate water-absorbing paper. The paper 19 is stabilized. The lower water-absorbing paper 2 which is bent and compressed with the end portion 7 of the lower water-absorbing paper 2 on the end portion 22 of the intermediate water-absorbing paper 19 is sent to the spraying portion 66 of the surfactant 68, and from the surfactant sprayer 67. A surfactant 68 is sprayed onto the intermediate water absorbent paper 19. The intermediate water-absorbing paper 19 sprayed with the surfactant is supplied with the superabsorbent resin 24 to the superabsorbent resin supply point 69, and the superabsorbent resin spray device 70 scatters the superabsorbent resin 68. The upper water absorbent mixed layer portion 20 is formed only by the water absorbent resin 68. The lower water-absorbing paper 2 in which the upper water-absorbing mixed layer 68 is formed on the intermediate water-absorbing paper 19 by being sprayed with the high water-absorbing resin 68 is sent to the supply location 34 of the upper water-absorbing paper 4. 4 is placed. The upper water absorbent paper 4 is supplied from the roll 35 of the upper water absorbent paper 4 by the feed roller 36 onto the upper water absorbent mixed layer portion 20 on which the highly water absorbent resin 24 is dispersed. The belt-like layered product in which the intermediate water-absorbing paper 19 and the upper water-absorbing paper 4 are arranged on the lower water-absorbing paper 2 is sent to an embossing molding machine 38 and formed there, and is formed with a ridge having a width of approximately 2 mm or less. An uneven pattern is formed by embossing. Like The formed belt-like stratified compact is sent to the belt-shaped compact cutter 40 and cut into a stratified compact having a length of 450 mm. Below the stratified molded body obtained by cutting with the strip-shaped molded body cutter 40, the polyethylene film 12 for the back film is drawn from below from the roll 41 of the polyethylene film 12 and supplied from the supply roller 42, and stratified molding is performed. The body is placed on the polyethylene film 12 and sent to the location 69 where the polypropylene nonwoven fabric 13 is placed.
The polypropylene nonwoven fabric 13 is fed from the roll 44 of the polypropylene nonwoven fabric 13, and the hot melt adhesive is sprayed from the sprayer 46 on the way. The polypropylene nonwoven fabric 13 sprayed with the hot melt adhesive is placed on the stratified compact. The stratified compact on which the polypropylene nonwoven fabric 13 is placed is sent to the side seal machine 47, and both side portions are pressure-bonded and bonded by a hot melt adhesive. The stratified molded body with both side parts bonded is sent to the end seal machine 48 and bonded at both ends in the longitudinal direction, sent to the product cutter 49, cut to a predetermined size, and the product is sent from the product feed path 50. Sent. The product cut by the product cutter 49 is folded by a folding machine (not shown), packaged by a packaging machine (not shown), and shipped.
[0071]
【The invention's effect】
In the present invention, the absorber is treated with a surfactant solution between the upper absorbent paper layer portion forming the upper surface, the lower absorbent paper layer portion forming the lower surface, and the upper and lower paper layer portions. Since it has a water-absorbing mixed layer part containing the plastic waste material pulverized, pulp waste material pulverized material and water-absorbing resin, the absorption rate of water in the absorber and sheets can be made relatively high even when the plastic waste material content increases. For example, it can be placed on the floor, and even if water drops fall on the floor, the floor can be kept dry. Therefore, for example, it can be placed on the floor to prevent it from getting wet with water on the floor, and in the case of an open-air event venue, it can be kept dry even on rainy days by laying in the aisle. Use it on sheets without causing discomfort due to wet passages, and the person or animal is elastic and used at rest and at bedtime to feel better and prevent muscle pain can do.
In the present invention, the absorber is used as a raw material for sanitary materials such as waste paper diaper, sanitary napkin waste, etc., including photokura roll, thermal paper, cellophane, wood pulp, waste paper pulp, plastic film. Even if the heat of combustion of the absorber decreases due to moisture such as urine and sweat, the heat of combustion of the absorber after use can be increased by mixing the plastic film. This can be eliminated, the incineration of the absorber is facilitated, the disposal of the plastic film is also effective and easy, and the processing cost of the sanitary material waste can be reduced.
[Brief description of the drawings]
FIG. 1 is a schematic partial cross-sectional view showing an outline of a cross-sectional structure of an absorbent body having a single water-absorbing mixed layer portion according to an embodiment of the present invention.
2 is a cross-sectional view showing a schematic cross-sectional structure in the width direction of an absorbent body according to an embodiment of the present invention having the cross-sectional structure of the absorbent body according to the embodiment shown in FIG. 1;
FIG. 3 is a cross-sectional view showing a schematic cross-sectional structure in the width direction of an absorbent body according to another embodiment of the present invention having the cross-sectional structure of the absorbent body according to the embodiment shown in FIG. 1;
4 shows an absorbent body according to another embodiment of the present invention having a cross-sectional structure of the absorbent body according to the embodiment shown in FIG. 1 or 4 but different from the absorbent body according to the embodiment shown in FIGS. It is sectional drawing which shows the general | schematic cross-section of the width direction.
FIG. 5 is a schematic partial cross-sectional view showing a schematic cross-sectional structure in the width direction of an animal sheet of one embodiment of the present invention using the absorbent body of the embodiment shown in FIG. 1;
6 is a schematic partial cross-sectional view showing a schematic cross-sectional structure of a water absorbent mat according to an embodiment of the present invention using the absorbent body according to an embodiment of the present invention having the cross-sectional structure shown in FIG. .
7 is a schematic partial cross-sectional view showing a schematic cross-sectional structure in the width direction of an animal sheet of another embodiment of the present invention using the absorbent body of the embodiment of the present invention shown in FIG. 2. FIG. .
8 is a schematic partial cross-sectional view showing a schematic cross-sectional structure in the width direction of an animal sheet of another embodiment of the present invention that uses the absorbent body of the embodiment of the present invention shown in FIG. 3. FIG. .
9 is a schematic partial cross-sectional view showing a schematic cross-sectional structure in the width direction of an animal sheet of another embodiment of the present invention using the absorbent body of the embodiment shown in FIG. 3; FIG.
10 is a schematic partial cross-sectional view showing a schematic cross-sectional structure in the width direction of an animal sheet of another embodiment of the present invention using the absorbent body of the embodiment shown in FIG.
11 shows the width of an animal sheet according to an embodiment of the present invention in which the water-absorbing mixed layer portion of the animal sheet of the embodiment shown in FIG. 7 is a water-absorbing mixed layer portion in which a water-absorbing resin is unevenly distributed. It is a general | schematic fragmentary sectional view which shows the general | schematic cross-section of a direction.
12 shows the width of the animal sheet according to one embodiment of the present invention, in which the water-absorbing mixed layer portion of the animal sheet of the embodiment shown in FIG. 9 is a water-absorbing mixed layer portion in which a water-absorbing resin is unevenly distributed. It is a general | schematic fragmentary sectional view which shows the general | schematic cross-section of a direction.
13 shows the width of the animal sheet according to one embodiment of the present invention in which the water-absorbing mixed layer portion in the animal sheet of the embodiment shown in FIG. 10 is a water-absorbing mixed layer portion in which a water-absorbing resin is unevenly distributed. It is a general | schematic fragmentary sectional view which shows the general | schematic cross-section of a direction.
FIG. 14 is a schematic partial cross-sectional view showing an outline of a cross-sectional structure of an absorbent body having two upper and lower water-absorbing mixed layer portions according to another embodiment of the present invention.
15 is a schematic partial cross-sectional view showing a schematic cross-sectional structure of an animal sheet using the absorbent body of the embodiment shown in FIG.
16 is a schematic partial sectional view showing a schematic sectional structure in the width direction of the animal sheet having the sectional structure of the embodiment shown in FIG. 15;
17 is a schematic partial cross-sectional view showing a schematic cross-sectional structure in the width direction of the animal sheet having the cross-sectional structure of the embodiment shown in FIG. 15;
FIG. 18 is a diagram illustrating an animal sheet according to another embodiment of the present invention in which the water-absorbing mixed layer portion in the animal sheet of the embodiment shown in FIG. 16 is a water-absorbing mixed layer portion in which the water-absorbing resin is unevenly distributed. It is a general | schematic fragmentary sectional view which shows the general | schematic cross-section of the width direction.
FIG. 19 shows an animal sheet according to another embodiment of the present invention in which the water-absorbing mixed layer portion in the animal sheet of the embodiment shown in FIG. 17 is a water-absorbing mixed layer portion in which the water-absorbing resin is unevenly distributed. It is a general | schematic fragmentary sectional view which shows the general | schematic cross-section of the width direction.
FIG. 20 is a schematic partial cross-sectional view showing a schematic cross-sectional structure in the width direction of an animal sheet of one embodiment of the present invention using an absorbent body having an upper absorbent mixed layer portion formed of a water absorbent resin. It is.
FIG. 21 is a schematic cross-sectional structure in the width direction of an animal sheet of another embodiment of the present invention different from FIG. 20 using an absorbent body having an upper absorbent mixed layer portion formed of a water absorbent resin. It is a general | schematic fragmentary sectional view which shows.
22 is a schematic process diagram showing an outline of a process for manufacturing the animal sheet shown in FIGS. 9 and 10. FIG.
23 is a schematic process diagram showing a process of manufacturing the animal sheet of the embodiment of the present invention shown in FIGS. 22, 16 and 17. FIG.
FIG. 24 is a schematic process chart showing a process for manufacturing the animal sheet of the embodiment of the present invention shown in FIGS. 18 and 19;
FIG. 25 is a schematic process diagram showing a process of manufacturing the animal sheet of the embodiment of the present invention shown in FIGS. 20 and 21.
[Explanation of symbols]
1 Absorber
2 Lower absorbent paper
3 Water-absorbing mixed layer
4 Upper absorbent paper
5 Top surface
6 Bottom
7, 9 Width direction edge of lower absorbent paper
8, 10 Width direction edge of upper absorbent paper
11 Animal sheets, absorbent mats or packaging materials
12 Plastic film, polyethylene film
13 Nonwoven fabric, polypropylene nonwoven fabric
14 End of nonwoven fabric 13
15 End of plastic film 12
16 Paper waste mixture pulverized product
17, 24 Water-absorbing resin
18 Lower water absorption mixed layer
19 Intermediate water-absorbing mixed layer
20 Upper water-absorbing mixed layer
21 Mixture of plastic waste and paper waste
22 Edge of intermediate absorbent paper in width direction
23 Mixture of crushed material from upper paper waste
25 Roll of lower absorbent paper 2
26 Absorbent paper drawer roller
27 Defective paper diaper classification or paper diaper waste material pulverized mixture
28 Supply roller for defective diaper classification
29 Supply pipe for defective diaper classified products
30 Crusher for defective paper diaper classification
31 Surfactant
32 Spraying point of surfactant 31
33 Nebulizer for surfactant 31
34 Supply point of upper absorbent paper 4
35 Roll of upper absorbent paper 4
36 Drawer roller for upper absorbent paper 4
37 Supply roller for upper absorbent paper 4
38 Embossing molding machine
39 Banded stratified body
40 Band shaped body cutter
41 Roll of polyethylene film 12
42 Supply roller of polyethylene film 12
43 Place to cover the polypropylene nonwoven fabric 13
44 Roll of polypropylene nonwoven fabric 13
45 Supply roller for polypropylene nonwoven fabric 13
46 Hot melt adhesive sprayer
47 Side sealing machine
48 End sealing machine
49 Product cutter
50 Product feed path
51 Waste bottom paper
52 Feed roller for lower paper waste material mixture 16
53 Supply Pipe for Lower Paper Waste Mixture 51
53 'Supply pipe for upper paper waste mixture 64
54 Crusher for Waste Paper Mixture 51
54 'Crusher for upper paper waste mixture 64
55 Spraying place of diluted surfactant aqueous solution
56 Nebulizer for dilute aqueous surfactant
57 Surfactant diluted aqueous solution
58 Application place of super absorbent polymer
59 Superabsorbent resin sprayer
60 Supply point of intermediate absorbent paper 19
61 Roll of intermediate absorbent paper 19
62 Supply roller for intermediate water absorbing paper 19
63 Compressor
64 Upper paper waste mixture
65 Supply roller for upper paper waste material mixture 65
66 Sprayed portion of surfactant-diluted aqueous solution 68
67 Nebulizer of surfactant aqueous solution 68
68 Surfactant diluted aqueous solution
69 Spraying point of super absorbent polymer 24
70 Super absorbent polymer spraying device
71 Waste paper diaper waste
72 Waste diaper waste material crushed material
73 Supply pipe for paper waste mixture
74 Crusher for waste paper mixture

Claims

An upper water-absorbing paper layer portion that forms an upper surface, a lower water-absorbing paper layer portion that forms a lower surface, and a plastic waste material pulverized material, a paper waste material pulverized material, and a water absorbing material disposed between the upper and lower water-absorbing paper layer portions. And a water-absorbing mixed layer portion formed by containing a surfactant at least at the top, and the upper water-absorbing paper layer portion, the water-absorbing mixed layer portion, and the lower water-absorbing paper layer portion. Is an absorbent body characterized by being combined and integrally formed.

An upper water-absorbing paper layer portion that forms an upper surface, a lower water-absorbing paper layer portion that forms a lower surface, and a plastic waste material pulverized material, a paper waste material pulverized material, and a water absorbing material disposed between the upper and lower water-absorbing paper layer portions. And a water-absorbing mixed layer portion formed by containing a surfactant at least at the top, and the upper water-absorbing paper layer portion, the water-absorbing mixed layer portion, and the lower water-absorbing paper layer portion. Are combined to form a laminated body, and at least one surface thereof has an uneven pattern formed by embossing.

An upper water absorbent paper layer portion forming an upper surface, a lower water absorbent paper layer portion forming a lower surface, an intermediate water absorbent paper layer portion disposed between the upper and lower water absorbent paper layer portions, and an upper water absorbent A water absorbent resin disposed between the absorbent paper layer portion and the intermediate water absorbent paper layer portion and a water absorbent resin-containing layer portion containing at least a surfactant, and the intermediate water absorbent paper layer portion and the lower water absorbent An upper water absorbent paper layer portion, a water absorbent resin-containing layer, and a lower water absorbent mixed layer portion including a plastic waste material pulverized material, a paper waste material pulverized material, and a water absorbent resin. Part, intermediate water-absorbent paper layer part, water-absorbent mixed layer part and lower water-absorbent paper layer part are combined to form a laminate, and at least one surface thereof has an embossed ridge formed thereon. Absorber.

An upper water absorbent paper layer portion forming an upper surface, a lower water absorbent paper layer portion forming a lower surface, an intermediate water absorbent paper layer portion disposed between the upper and lower water absorbent paper layer portions, and an upper water absorbent A water-absorbing resin-containing layer portion disposed between the absorbent paper layer portion and the intermediate water-absorbent paper layer portion, and disposed between the intermediate water-absorbent paper layer portion and the upper water-absorbent paper layer portion, and pulverized plastic waste material An upper water-absorbing mixed layer portion including at least an upper portion and a surfactant, and between the intermediate water-absorbing paper layer portion and the lower water-absorbing paper layer portion. And a lower water-absorbent mixed layer portion containing a plastic waste material pulverized material, a paper waste material pulverized material, and a water-absorbent resin, the upper water-absorbent paper layer portion, the water-absorbent resin-containing layer portion, the middle The water absorbent paper layer, upper and lower water absorbent mixed layer and lower water absorbent paper layer It is being formed in the laminate, the absorber, wherein the uneven pattern by embossing on at least one surface is formed.

The absorbent according to claim 3 or 4, wherein the lower water-absorbing mixed layer portion contains a surfactant at least in an upper portion thereof.

The absorbent body according to any one of claims 1 to 4, wherein the water-absorbing mixed layer portion has a plastic substance content larger than a pulp content.

The absorbent body according to claim 1, wherein both or one of the upper water-absorbing paper layer portion and the lower water-absorbing paper layer portion is a paper layer portion formed of rayon paper, thin paper, or composite paper.

The at least one of the upper water absorbent paper layer portion, the intermediate water absorbent paper layer portion, and the lower water absorbent paper layer portion is a paper layer portion formed of rayon paper, thin paper, or composite paper. The absorber according to 2 or 3.

Paper waste material pulverized product is a pulverized product having a particle size of 5 mm or less, pulverized paper diaper or paper diaper waste material, defective milk pad or crushed material of milk pad waste material, pulverized urine pad or urine pad waste material, poor physiological use Napkin or sanitary napkin waste material crushed material, defective superabsorbent fiber or superabsorbent fiber waste material, defective thermal paper or thermal paper waste material crushed material, defective paper tube or pulverized paper tube waste material, defective paper container or paper container waste material Pulverized material, waste paper waste material, defective corrugated cardboard or corrugated paper waste material, waste paper ground material, defective inorganic fiber paper or inorganic fiber paper waste material, defective chemical fiber paper or chemical fiber paper waste material, dry type Or wet defective non-woven fabric or dry or wet non-woven fabric waste, defective pre-cra roll or pre-cra roll waste, poor thermal paper The thermal paper waste material, the defective cellophane or the cellophane waste material, the wood pulp waste material, the defective laminated paper or the pulverized material of the laminated paper, or a mixture of two or more of the pulverized materials. The absorber as described in.

The pulverized product of defective inorganic fiber paper or inorganic fiber paper waste material is crushed product of defective titanium paper or titanium paper waste material, defective alumina paper or alumina paper waste material, defective potassium titanate paper or potassium titanate paper waste material The pulverized product of defective alumina / silica paper or alumina / silica paper waste material, or the pulverized product of defective carbon fiber paper or carbon fiber paper waste material, or a mixture of two or more of the pulverized products. Absorber.

The absorbent according to claim 9, wherein the pulverized product of chemical fiber paper waste is a pulverized product of recycled fiber paper waste, a crushed product of semi-synthetic fiber paper waste, or a mixture of two or more of the pulverized products.

Paper waste material pulverized product is a pulverized product having a particle size of 5 mm or less, pulverized product of defective paper diaper, pulverized product of defective milk pad, pulverized product of defective urine pad, pulverized product of defective sanitary napkin, pulverized material of waste paper diaper, Milk pad waste material, urine pad waste material, sanitary napkin waste material, dry or wet non-woven fabric waste material, superabsorbent fiber waste material or laminated paper waste material or the above ground product The absorbent according to any one of claims 1 to 4, which is a separated product separated from one or more pulverized products and containing pulp as a main component.

The absorbent according to any one of claims 1 to 4, wherein the pulverized plastic waste material has a particle size of 5 mm or less, and is a pulverized plastic film waste material or a pulverized plastic sheet waste material.

The plastic waste material pulverized product is a pulverized product having a particle size of 5 mm or less. The diaper waste material pulverized product, the milk pad waste material pulverized product, the urine pad waste material pulverized product, the sanitary napkin waste material pulverized product, the laminated paper waste product crushed product or the crushed product The absorber according to any one of claims 1 to 4, wherein the absorbent is a separated product separated from one or more pulverized products and containing a plastic substance as a main component.

A water-permeable thin layer portion forming an upper surface, a water-permeable or water-impermeable thin layer portion forming a lower surface, an upper water-absorbent paper layer portion positioned in contact with the lower surface of the water-permeable thin layer portion, and the water-permeable property Or a lower water-absorbent paper layer portion disposed in contact with the upper surface of the water-impermeable thin layer portion, and disposed between the upper water-absorbent paper layer portion and the lower water-absorbent paper layer portion. The upper water-absorbing paper layer portion, the water-absorbing mixed layer portion, and the lower water-absorbing paper, comprising a waste material pulverized product and a water-absorbing resin, and at least an upper portion and a water-absorbing mixed layer portion containing a surfactant. The sheet is characterized in that the layer portions are combined to form a laminate, and at least one surface thereof is provided with an uneven pattern by embossing.

A water-permeable thin layer portion forming an upper surface, a water-permeable or water-impermeable thin layer portion forming a lower surface, an upper water-absorbent paper layer portion positioned in contact with the lower surface of the water-permeable thin layer portion, and the water-permeable property Alternatively, the lower water-absorbing paper layer portion disposed in contact with the upper surface of the water-impermeable thin layer portion, the intermediate water-absorbing paper layer portion disposed between the upper and lower water-absorbing paper layer portions, and the upper water-absorbing paper layer portion. A water-absorbing resin-containing layer portion that is disposed between the paper layer portion and the intermediate water-absorbing paper layer portion and includes a water-absorbing resin and at least a part of a surfactant, and the intermediate water-absorbing paper layer portion and the lower water-absorbing paper A lower water-absorbing mixed layer portion disposed between the layer portions and including a plastic waste material pulverized material, a paper waste material pulverized material, and a water-absorbing resin, the upper water-absorbing paper layer portion, the water-absorbing resin-containing layer portion, The intermediate water absorbent paper layer portion, the lower water absorbent mixed layer portion and the lower water absorbent paper layer portion are combined to form a laminate. , Sheets, characterized in that the uneven pattern by embossing on at least one surface is formed.

A water-permeable thin layer portion forming an upper surface, a water-permeable or water-impermeable thin layer portion forming a lower surface, an upper water-absorbent paper layer portion positioned in contact with the lower surface of the water-permeable thin layer portion, and the water-permeable property Alternatively, the lower water-absorbing paper layer portion disposed in contact with the upper surface of the water-impermeable thin layer portion, the intermediate water-absorbing paper layer portion disposed between the upper and lower water-absorbing paper layer portions, and the upper water-absorbing paper layer portion. An upper water-absorbing mixed layer portion disposed between the paper layer portion and the intermediate water-absorbent paper layer portion, including a plastic waste material pulverized product, a paper waste material pulverized material, and a water-absorbing resin, and at least a surfactant. And a lower water-absorbing mixed layer portion disposed between the intermediate water-absorbing paper layer portion and the lower water-absorbing paper layer portion and containing a plastic waste material pulverized material, a paper waste material pulverized material, and a water-absorbing resin. the upper absorbent paper layer portion, the upper water-absorbent mixture layer portion, an intermediate water absorbing paper layer portion, a lower water absorption mixing Layer portion and a lower water absorbing paper layer portion is formed aligned with the laminate sheets, characterized in that it is uneven pattern by embossing on at least one surface is formed.

The sheet according to claim 16 or 17, wherein the lower water-absorbing mixed layer portion contains a surfactant at least at an upper portion thereof.

The water-absorbing mixed layer portion includes a plastic waste material pulverized material, a paper waste material pulverized material, and a water-absorbing resin, and the plastic substance content is larger than the pulp content. Sheets described in.

The sheet according to claim 15, wherein both or one of the upper water absorbent paper layer portion and the lower water absorbent paper layer portion is a paper layer portion formed of rayon paper, thin paper, or composite paper.

The at least one of the upper water absorbent paper layer portion, the intermediate water absorbent paper layer portion, and the lower water absorbent paper layer portion is a paper layer portion formed of rayon paper, thin paper, or composite paper. The sheet according to 16 or 17.

Paper waste material pulverized product is a pulverized product having a particle size of 5 mm or less, pulverized paper diaper or paper diaper waste material, defective milk pad or crushed material of milk pad waste material, pulverized urine pad or urine pad waste material, poor physiological use Napkin or sanitary napkin waste material crushed material, defective superabsorbent fiber or superabsorbent fiber waste material, defective thermal paper or thermal paper waste material crushed material, defective paper tube or pulverized paper tube waste material, defective paper container or paper container waste material Pulverized material, waste paper waste material, defective corrugated cardboard or corrugated paper waste material, waste paper ground material, defective inorganic fiber paper or inorganic fiber paper waste material, defective chemical fiber paper or chemical fiber paper waste material, dry type Or wet defective non-woven fabric or dry or wet non-woven fabric waste, defective pre-cra roll or pre-cra roll waste, poor thermal paper The thermal paper waste material, the defective cellophane or the cellophane waste material, the wood pulp waste material, the defective laminated paper or the pulverized product of the laminated paper waste material, or a mixture of two or more of the pulverized products. Sheets described in.

The pulverized product of defective inorganic fiber paper or inorganic fiber paper waste material is crushed product of defective titanium paper or titanium paper waste material, defective alumina paper or alumina paper waste material, defective potassium titanate paper or potassium titanate paper waste material 23. A pulverized product of defective alumina / silica paper or alumina / silica paper waste material, or a pulverized product of defective carbon fiber paper or carbon fiber paper waste material, or a mixture of two or more of the pulverized products. Sheets.

23. The sheet according to claim 22, wherein the pulverized product of chemical fiber paper waste is a pulverized product of recycled fiber paper waste, a crushed product of semi-synthetic fiber paper waste, or a mixture of two or more of the pulverized products.

The waste paper pulverized product is a pulverized product having a particle size of 5 mm or less. The pulverized product of a defective paper diaper, the pulverized product of a defective milk pad, the pulverized product of a defective urine pad, the pulverized product of a defective sanitary napkin, the pulverized product of waste paper diaper, Milk pad waste pulverized material, urine pad waste pulverized material, sanitary napkin waste pulverized material or laminated paper waste pulverized material, or a separated product containing pulp as a main component. The sheet according to any one of claims 15 to 17, wherein the sheet is provided.

The sheet according to any one of claims 15 to 17, wherein the pulverized plastic waste is a pulverized plastic film waste or a pulverized plastic sheet with a particle size of 5 mm or less.

The plastic waste material pulverized product is a pulverized product having a particle size of 5 mm or less. The diaper waste material pulverized product, the milk pad waste material pulverized product, the urine pad waste material pulverized product, the paper napkin waste product pulverized product or the laminated paper waste product crushed product or one of the pulverized products. The sheet according to any one of claims 15 to 17, wherein the sheet is a separated product containing a plastic substance as a main component separated from the pulverized product.

Permeability thin layer portion, sheets as claimed in any one of claims 15 to 17, wherein characterized in that it is a dry nonwoven fabric or wet-laid nonwoven fabric.

The sheet according to any one of claims 15 to 17, wherein the water-impermeable thin layer portion is a plastic film or a flexible plastic sheet.

The sheet according to any one of claims 15 to 17, wherein the water-impermeable thin layer portion is a plastic film or a flexible plastic sheet in which a plurality of holes are formed.

A water-permeable thin layer portion forming an upper surface, a water-permeable or water-impermeable thin layer portion forming a lower surface, an upper water-absorbent paper layer portion positioned in contact with the lower surface of the water-permeable thin layer portion, and the water-permeable property Or a lower water-absorbent paper layer portion disposed in contact with the upper surface of the water-impermeable thin layer portion, and disposed between the upper water-absorbent paper layer portion and the lower water-absorbent paper layer portion. The upper water-absorbing paper layer portion, the water-absorbing mixed layer portion, and the lower water-absorbing paper, comprising a waste material pulverized product and a water-absorbing resin, and at least an upper portion and a water-absorbing mixed layer portion containing a surfactant. A packaging material, wherein the layer portions are combined to form a laminate, and at least one surface thereof has an uneven pattern formed by embossing.

A water-permeable thin layer portion forming an upper surface, a water-permeable or water-impermeable thin layer portion forming a lower surface, an upper water-absorbent paper layer portion positioned in contact with the lower surface of the water-permeable thin layer portion, and the water-permeable property Or a lower water-absorbing paper layer portion disposed in contact with the upper surface of the water-impermeable thin layer portion, an intermediate water-absorbing paper layer portion disposed between the upper or lower water-absorbing paper layer portions, and an upper water-absorbing layer. A water-absorbing resin-containing layer portion that is disposed between the paper layer portion and the intermediate water-absorbing paper layer portion and includes a water-absorbing resin and at least a part of a surfactant, and the intermediate water-absorbing paper layer portion and the lower water-absorbing paper A lower water-absorbing mixed layer portion disposed between the layer portions and including a plastic waste material pulverized material, a paper waste material pulverized material, and a water-absorbing resin, the upper water-absorbing paper layer portion, the water-absorbing resin-containing layer portion, The intermediate water absorbent paper layer part, the water absorbent mixed layer part and the lower water absorbent paper layer part are combined and formed into a laminate, Without even the packaging material, characterized in that concave and convex pattern by emboss it is formed on one surface thereof.

A water-permeable thin layer portion forming an upper surface, a water-permeable or water-impermeable thin layer portion forming a lower surface, an upper water-absorbent paper layer portion positioned in contact with the lower surface of the water-permeable thin layer portion, and the water-permeable property Or a lower water-absorbing paper layer portion disposed in contact with the upper surface of the water-impermeable thin layer portion; an intermediate water-absorbing paper layer portion disposed between the upper and lower water-absorbing paper layer portions; An upper water-absorbing mixed layer portion disposed between the paper layer portion and the intermediate water-absorbent paper layer portion, including a plastic waste material pulverized material, a paper waste material pulverized material, and a water-absorbing resin, and at least an upper portion containing a surfactant; The upper water-absorbing paper layer portion is disposed between the intermediate water-absorbing paper layer portion and the upper water-absorbing paper layer portion, and includes a lower water-absorbing mixed layer portion including a plastic waste material pulverized material, a paper waste material pulverized material, and a water-absorbing resin. sex paper layer portion, the water-absorbent paper layer portion between the medium, the upper and lower water-absorbent mixture layer portion and a lower water absorbing paper layer portion Are formed aligned in the laminate, the packaging material characterized by uneven pattern by embossing on at least one surface is formed.

The packaging material according to claim 32 or 33, wherein the lower water-absorbing mixed layer portion contains a surfactant in at least an upper portion thereof.

The water-absorbing mixed layer portion includes a plastic waste material pulverized material, a paper waste material pulverized material, and a water-absorbing resin, and the plastic substance content is larger than the pulp content. Packaging material as described in.

32. The packaging material according to claim 31, wherein both or one of the upper water absorbent paper layer portion and the lower water absorbent paper layer portion is a paper layer portion formed of rayon paper, thin paper, or composite paper.

The at least one of the upper water absorbent paper layer portion, the intermediate water absorbent paper layer portion, and the lower water absorbent paper layer portion is a paper layer portion formed of rayon paper, thin paper, or composite paper. The packaging material according to 32 or 33.

Paper waste material pulverized product is a pulverized product having a particle size of 5 mm or less, pulverized paper diaper or paper diaper waste material, defective milk pad or crushed material of milk pad waste material, pulverized urine pad or urine pad waste material, poor physiological use Napkin or sanitary napkin waste material crushed material, defective superabsorbent fiber or superabsorbent fiber waste material, defective thermal paper or thermal paper waste material crushed material, defective paper tube or pulverized paper tube waste material, defective paper container or paper container waste material Pulverized material, waste paper waste material, defective corrugated cardboard or corrugated paper waste material, waste paper ground material, defective inorganic fiber paper or inorganic fiber paper waste material, defective chemical fiber paper or chemical fiber paper waste material, dry type Or wet defective non-woven fabric or dry or wet non-woven fabric waste, defective pre-cra roll or pre-cra roll waste, poor thermal paper The heat-sensitive paper waste material, the defective cellophane or the cellophane waste material, the wood pulp waste material, the crushed material of the defective laminated paper or the laminated paper waste material, or a mixture of two or more of the pulverized materials. Packaging material as described in.

The pulverized product of defective inorganic fiber paper or inorganic fiber paper waste material is crushed product of defective titanium paper or titanium paper waste material, defective alumina paper or alumina paper waste material, defective potassium titanate paper or potassium titanate paper waste material The pulverized product of defective alumina / silica paper or alumina / silica paper waste material, or the pulverized product of defective carbon fiber paper or carbon fiber paper waste material, or a mixture of two or more of the pulverized products. Packaging material.

The packaging material according to claim 38, wherein the pulverized product of chemical fiber paper waste is a pulverized product of recycled fiber paper waste, a crushed product of semi-synthetic fiber paper waste, or a mixture of two or more of the pulverized products.

The waste paper pulverized product is a pulverized product having a particle size of 5 mm or less. The pulverized product of a defective paper diaper, the pulverized product of a defective milk pad, the pulverized product of a defective urine pad, the pulverized product of a defective sanitary napkin, the pulverized product of waste paper diaper, Pulverized waste of dairy pad waste, pulverized waste of urine pad, pulverized waste of sanitary napkin, pulverized superabsorbent fiber waste or pulverized laminate paper waste or one or more of the pulverized main components The packaging material according to any one of claims 31 to 33, wherein the packaging material is a separated product containing as a pulp.

The packaging material according to any one of claims 31 to 32, wherein the plastic waste material pulverized product has a particle size of 5 mm or less, and is a pulverized product of plastic film waste material or pulverized plastic sheet waste material.

The plastic waste material pulverized product is a pulverized product having a particle size of 5 mm or less. The packaging material according to any one of claims 31 to 33, wherein the packaging material is a separated product containing a plastic substance as a main component, which is separated from one or more products.

34. A packaging material according to claim 31 to 33, wherein the moisture content is 5 to 15 weight percent.

34. A packaging material according to claims 31 to 33, wherein the moisture content is 15 to 40 weight percent.

The packaging material is for packaging vegetables, fruits and vegetables, fresh fish, raw meat, prepared foods, lunch boxes, seeds, strains, seedlings, bulbs or horticultural plants, and has a water evaporation prevention function. 34 to 33 packaging material.

The packaging material according to any one of claims 31 to 33, wherein the water-permeable or water-impermeable thin layer portion forming the lower surface is a plastic film or a flexible plastic sheet.

The packaging according to any one of claims 31 to 33, wherein the water-permeable or water-impermeable thin layer portion forming the lower surface is a plastic film or a flexible plastic sheet in which holes are formed. material.