JPH11140776A - Water-soluble nonwoven fabric or molded fabric - Google Patents
Water-soluble nonwoven fabric or molded fabricInfo
- Publication number
- JPH11140776A JPH11140776A JP9322309A JP32230997A JPH11140776A JP H11140776 A JPH11140776 A JP H11140776A JP 9322309 A JP9322309 A JP 9322309A JP 32230997 A JP32230997 A JP 32230997A JP H11140776 A JPH11140776 A JP H11140776A
- Authority
- JP
- Japan
- Prior art keywords
- water
- fabric
- soluble
- nonwoven fabric
- soluble nonwoven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Nonwoven Fabrics (AREA)
- Materials For Medical Uses (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、水可溶性の成型物
に関し、更に詳しくは、水溶性樹脂を含浸した水可溶性
ポリビニルアルコール系不織布又は布帛（以下まとめて
不織布と省略する）を構成成分とする積層体からなる水
可溶性不織布成型物に関し、焼却をせずとも水に溶解す
ることで、下水に廃棄可能な水可溶性不織布成型物に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-soluble molded article, and more particularly, to a water-soluble polyvinyl alcohol-based nonwoven fabric or cloth impregnated with a water-soluble resin (hereinafter collectively referred to as nonwoven fabric). TECHNICAL FIELD The present invention relates to a water-soluble nonwoven fabric formed from a laminate, which can be disposed in sewage by being dissolved in water without incineration.
【０００２】[0002]
【従来の技術】従来より、日本の国においては、国土が
狭いために、廃棄物の処理においては、一部はリサイク
ル（再生）にかけられたり、産業廃棄物として処理場で
処理されたりするが、大部分のものは焼却され処理され
ている。近年では産業廃棄物処理場も満杯になり始め、
新たに産業廃棄物処理場となる候補地も少なく、廃棄物
の焼却においては、ダイオキシンの問題が発生し難儀し
ている。2. Description of the Related Art Conventionally, in Japan, due to the small land area, some wastes are recycled (regenerated) or treated as industrial waste at a treatment plant. Most are incinerated and disposed of. In recent years, industrial waste treatment plants have also become full,
There are few new candidate sites for industrial waste disposal, and incineration of waste is difficult due to the problem of dioxin.
【０００３】特に、近年、病院や介護老人ホームで発生
する廃棄物（いわゆる医療用廃棄物）が増加して、これ
らの処理の手間や工数の問題が話題になっている。特
に、手術使用後のメスやカンシを置くためのプラスチッ
クトレー、患者の使用したプラスチック洗面器、患者よ
り摘出した部位や体液を処置するためのプラスチックト
レー等のプラスチック成型物を廃棄するには、そのま
ま、再生工場や、廃棄物処理場送りとするわけにもいか
ず、消毒後に、再生工場や、廃棄物処理場送りとするた
め大変手間がかかったり、或いはそのまま焼却する時
は、焼却すればダイオキシンが発生するという大変に頭
の痛い問題があり、急加速的にこれらに対する改善が要
求されつづけている。[0003] In particular, in recent years, the amount of waste (so-called medical waste) generated in hospitals and nursing homes for the elderly has increased, and the problem of the labor and man-hours of these treatments has become a hot topic. In particular, in order to dispose of plastic moldings such as plastic trays for placing scalpels and candies after surgery, plastic basins used by patients, and plastic trays for treating parts and body fluids removed from patients, It is not possible to send to a recycling plant or a waste disposal site, but after disinfection, it takes a lot of trouble to send to a regeneration plant or a waste disposal site, or when incinerated as it is, dioxin can be reduced by incineration There is a very painful problem that it will occur, and there is a continuing need for rapid improvement.
【０００４】[0004]
【発明が解決しようとする課題】プラスチックの成型物
の処理として、再生溶融処理でもなく、産業廃棄物処理
場送りでもなく、焼却でもないものというと溶解しかな
いが、強酸、強アルカリ、溶剤での溶解処理はこれらの
廃液の問題が発生するので実用的ではないので、水での
溶解となる。成型物を水溶性にするためには、水溶性樹
脂を使用する必要があるが、水溶性成型物を、無垢材で
形成した場合は、強度はあるが、水に溶解するのに時間
がかかりすぎ実用的でない。又、高速で水に溶解するよ
うに分子設計した樹脂を無垢材料として使用する時は、
吸湿にて柔らかくなりすぎ使用にたえない。水溶性成型
物を水溶性樹脂の発泡体で形成したりする手段もあるが
この場合は、水に溶解する時間は短いが、強度の問題が
あり薄物はできないので実用には値しない。廃棄処理の
ために、早く水に溶け、下水廃棄でき、薄く軽く、強度
があり、吸湿で柔らかくならない水可溶性成型物が望ま
れるところである。特に、医療用や介護用で使用し汚染
される成型物は、薄く軽く、強度があり、吸湿で柔らか
くならなく、水で溶かすときに早く溶け、手軽に消毒で
きると同時に下水に廃棄できるものが望まれている。The plastic molded product is not melted, not recycled, sent to an industrial waste disposal site, and is not incinerated. Dissolution treatment is not practical because of the problem of these waste liquids, and is dissolved in water. In order to make the molded product water-soluble, it is necessary to use a water-soluble resin.However, when the water-soluble molded product is made of solid material, it has strength but takes time to dissolve in water. Too practical. Also, when using a resin that is molecularly designed to dissolve in water at high speed as a solid material,
It becomes too soft due to moisture absorption and cannot be used. There is also a means of forming a water-soluble molded article with a water-soluble resin foam, but in this case, although the time for dissolving in water is short, there is a problem of strength and a thin material cannot be used, so that it is not practical. For disposal treatment, a water-soluble molded product that dissolves in water quickly, can be disposed of sewage, is thin, light, strong, and does not become soft due to moisture absorption is desired. In particular, molded products that are used and contaminated for medical or nursing care are those that are thin, light, strong, do not soften due to moisture absorption, dissolve quickly when dissolved in water, can be easily disinfected, and can be disposed of in sewage. Is desired.
【０００５】[0005]
【課題を解決するための手段】しかるに、本発明者はか
かる課題を解決すべく鋭意研究を重ねた結果、水可溶性
不織布からなる水可溶性成型物において、水可溶性不織
布又は布帛に水溶性樹脂が含浸されてなる成型物、特に
２枚以上の水可溶性ポリビニルアルコール系不織布を積
層してなる水可溶性不織布成型物において、少なくとも
１枚の水可溶性ポリビニルアルコール系不織布に水溶性
樹脂を含浸させる場合、水可溶性不織布成型物が上記目
的を達成できることを見いだし本発明を完成するに到っ
た。Means for Solving the Problems However, as a result of intensive studies to solve such problems, the present inventor has found that a water-soluble nonwoven fabric or a fabric is impregnated with a water-soluble resin in a water-soluble molded product made of a water-soluble nonwoven fabric. When a water-soluble resin is impregnated into at least one water-soluble polyvinyl alcohol-based nonwoven fabric, particularly when the water-soluble nonwoven fabric is formed by laminating two or more water-soluble polyvinyl alcohol-based nonwoven fabrics, The present inventors have found that a nonwoven fabric molding can achieve the above object, and have completed the present invention.
【０００６】[0006]
【発明の実施の形態】本発明について具体的に説明す
る。本発明の最大の特徴は、水溶性樹脂を含浸した水可
溶性不織布を積層体の１成分として使用する点にある。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described specifically. The greatest feature of the present invention is that a water-soluble nonwoven fabric impregnated with a water-soluble resin is used as one component of the laminate.
【０００７】以下、本発明の成型物で使用される基材に
ついて述べる。まず、水可溶性不織布を構成する繊維と
しては特に限定はないが、ポリビニルアルコール系繊
維、ポリビニルアルコール系樹脂と他の水溶性樹脂との
コンジュゲート繊維や海島繊維が好ましい。本発明にお
ける水溶性樹脂は、水好ましくは５０℃以上の熱水に可
溶のものであれば特には限定しない。かかる水溶性樹脂
としては、ポリビニルアルコール系樹脂、オキシアルキ
レン基含有ポリビニルアルコール系樹脂、ポリビニルピ
ロリドン系樹脂、澱粉系樹脂、カルボキシメチルセルロ
ース、メチルセルロース、ポリエチレンオキサイド、各
種多糖体等があるが、好ましくは、ポリビニルアルコー
ル系樹脂、オキシアルキレン基含有ポリビニルアルコー
ル系樹脂、ポリビニルピロリドン系樹脂が実用的であ
る。工業的には、ホットメルト接着性を有するものが更
には好ましい。ホットメルト接着性を有するものとして
は、平均重合度３００〜８００、ケン化度９０モル％以
上のポリビニルアルコール系樹脂やオキシアルキレン基
を０．１〜１０モル％程度含有するポリビニルアルコー
ル系樹脂、ポリビニルピロリドン系樹脂が挙げられ、こ
れらの樹脂にに可塑剤としてグリセリン、ジグリセリ
ン、ポリエチレングリコール等を配合したものが更に実
用的である。特に好ましくは、水に溶解廃棄後に、自然
界の中で生分解性する樹脂つまりポリビニルアルコール
系樹脂やオキシアルキレン基含有ポリビニルアルコール
系樹脂が下水廃棄の上で一番好ましい。Hereinafter, the base material used in the molded article of the present invention will be described. First, the fibers constituting the water-soluble nonwoven fabric are not particularly limited, but polyvinyl alcohol-based fibers, conjugate fibers of polyvinyl alcohol-based resins with other water-soluble resins, and sea-island fibers are preferred. The water-soluble resin in the present invention is not particularly limited as long as it is soluble in water, preferably in hot water of 50 ° C. or higher. Examples of such a water-soluble resin include a polyvinyl alcohol-based resin, an oxyalkylene group-containing polyvinyl alcohol-based resin, a polyvinyl pyrrolidone-based resin, a starch-based resin, carboxymethylcellulose, methylcellulose, polyethylene oxide, various polysaccharides, and the like. Alcohol resins, oxyalkylene group-containing polyvinyl alcohol resins, and polyvinylpyrrolidone resins are practical. Industrially, those having hot melt adhesiveness are more preferable. Examples of those having hot melt adhesiveness include polyvinyl alcohol resins having an average degree of polymerization of 300 to 800 and a saponification degree of 90 mol% or more, polyvinyl alcohol resins containing about 0.1 to 10 mol% of oxyalkylene groups, polyvinyl Pyrrolidone resins are mentioned, and those obtained by blending glycerin, diglycerin, polyethylene glycol or the like as a plasticizer with these resins are more practical. Particularly preferably, a resin that is biodegradable in nature after being dissolved and disposed in water, that is, a polyvinyl alcohol-based resin or an oxyalkylene group-containing polyvinyl alcohol-based resin is most preferable in terms of sewage disposal.
【０００８】本発明の水可溶性不織布成型体で使用する
水可溶性ポリビニルアルコール系不織布とは水可溶性ポ
リビニルアルコール系繊維をスパンレース法、スパンボ
ンド法、メルトブロー法、ケミカルボンド法、ニードル
パンチ法あるいはスデチボンド法等の公知の方法で製造
される不織布であり、また、かかる水可溶性ポリビニル
アルコール系布帛とは、水可溶性ポリビニルアルコール
系繊維で、平織、綾織等に製織された織物や、たて編
み、横編み、トリコット編み等の編み物等を意味する。The water-soluble polyvinyl alcohol-based non-woven fabric used in the water-soluble non-woven fabric molding of the present invention is a water-soluble polyvinyl alcohol-based non-woven fabric formed by spun lace method, spun bond method, melt blow method, chemical bond method, needle punch method or sdeti bond method. And the like, and such a water-soluble polyvinyl alcohol-based fabric is a water-soluble polyvinyl alcohol-based fiber, woven into a plain weave, a twill weave, or the like, a warp knit, a flat knit. And knitting such as tricot knitting.
【０００９】本発明で使用する水可溶性ポリビニルアル
コール系繊維は、水可溶性ポリビニルアルコール系樹脂
を原料として紡糸される。かかる水可溶性ポリビニルア
ルコール系樹脂としては、通常酢酸ビニルを重合したポ
リ酢酸ビニルをケン化して製造されるものであるが、本
発明では、これに限定されるものでなく、少量の不飽和
カルボン酸（塩、エステル、アミド、ニトリル、等を含
む）、オレフィン類、ビニルエーテル類、不飽和スルホ
ン酸塩類等、酢酸ビニルと共重合可能な成分を含有して
いてもよい。できあがった水可溶性不織布成型物がある
程度の耐水性をもつことが好ましいため、好ましくは７
０℃以上の温水で溶解する例えばケン化度８０〜１００
モル％、平均重合度１００〜５５００の水可溶性ポリビ
ニルアルコール系樹脂（変性ポリビニルアルコールも含
む）が好ましい、紡糸にあたっては、水系、溶剤系、こ
れらの混合溶媒系であっても特には限定しない。又、紡
糸に際してグリセリン、ジグリセリン当の可塑剤を添加
してもよい。The water-soluble polyvinyl alcohol fiber used in the present invention is spun from a water-soluble polyvinyl alcohol resin. Such a water-soluble polyvinyl alcohol-based resin is usually produced by saponifying polyvinyl acetate obtained by polymerizing vinyl acetate. However, the present invention is not limited to this, and a small amount of unsaturated carboxylic acid may be used. (Including salts, esters, amides, nitriles, etc.), olefins, vinyl ethers, unsaturated sulfonates, and the like, may contain components copolymerizable with vinyl acetate. Since it is preferable that the completed water-soluble nonwoven fabric molded article has a certain degree of water resistance,
Dissolves in warm water of 0 ° C or more, for example, a saponification degree of 80 to 100
A water-soluble polyvinyl alcohol-based resin (including a modified polyvinyl alcohol) having a mole% of 100 to 5500 in average degree of polymerization is preferable. In spinning, there is no particular limitation even if it is an aqueous system, a solvent system, or a mixed solvent system thereof. Further, a plasticizer such as glycerin or diglycerin may be added during spinning.
【００１０】かかる繊維を使用した水可溶性ポリビニル
アルコール系不織布に水溶性樹脂を含浸させる方法とし
ては、上記の水溶性樹脂を水、溶剤、またはこれらの混
合溶剤等の溶媒に溶解した樹脂液に、不織布を付着させ
ることにより含浸できるし、水溶性樹脂自体がホットメ
ルト接着性がある時は、水溶性樹脂を溶融させたホット
メルト液に付着させることで含浸できる。As a method of impregnating a water-soluble resin into a water-soluble polyvinyl alcohol-based nonwoven fabric using such fibers, a resin solution obtained by dissolving the above water-soluble resin in a solvent such as water, a solvent, or a mixed solvent thereof is used. It can be impregnated by attaching a nonwoven fabric, or when the water-soluble resin itself has hot-melt adhesiveness, it can be impregnated by attaching the water-soluble resin to a molten hot-melt liquid.
【００１１】含浸のより具体的な方法としては、溶媒を
使用する時は、スプレー法、どぶ漬け法（ディップ
法）、コーター法、上掛け法により塗布することがで
き、ホットメルト液を使用する時は、スプレーコーター
法、カーテンコーター法、スパイラルコーター法、Ｔダ
イ押し出しコーター法、上掛け法により含浸することが
できる。As a more specific method of impregnation, when a solvent is used, it can be applied by a spray method, a dip method (dip method), a coater method, or an overlay method, and a hot melt liquid is used. At the time, impregnation can be performed by a spray coater method, a curtain coater method, a spiral coater method, a T-die extrusion coater method, or an overcoating method.
【００１２】本発明の水可溶性不織布成型物を製造する
方法について述べる。本水可溶性不織布成型物を成型す
るにあたり型が必要であり、金型、木型、樹脂型等何で
もよい。これらの型を使用して水可溶性不織布成型物を
成型する方法に二つの方法がある。ひとつは、型に、水
可溶性ポリビニルアルコール系不織布を沿わし、水溶性
樹脂を含浸させた上に、型に押さえ付けながら、熱、熱
風等で水溶性樹脂を乾固する型どり法であり、もう一つ
の方法は、水可溶性ポリビニルアルコール系不織布に、
上記方法で水溶性樹脂を含浸させた後に、それらの少な
くとも一枚以上の枚数のシートを、型に沿わして成型す
る真空成型法又は圧縮成型法である。The method for producing the water-soluble nonwoven fabric molding of the present invention will be described. A mold is required for molding the water-soluble nonwoven fabric molded article, and any mold such as a mold, a wooden mold, and a resin mold may be used. There are two methods for molding a water-soluble nonwoven fabric molding using these molds. One is a molding method in which a water-soluble polyvinyl alcohol-based nonwoven fabric is placed along a mold, impregnated with a water-soluble resin, and then pressed down on the mold while drying the water-soluble resin with heat, hot air, etc. One method is for water-soluble polyvinyl alcohol-based nonwoven fabric,
A vacuum molding method or a compression molding method in which at least one or more sheets are impregnated with a water-soluble resin by the above method and then molded along a mold.
【００１３】工業的には後者の方法が効率的で採算性が
ある。２枚以上の不織布を使用する場合、水溶性樹脂層
が不織布の間に介在するように設計するのが実用的であ
る。 かかる水可溶性不織布成型物の厚みは０．０４ｍｍ〜３
ｍｍの厚みの範囲が好ましく、厚みが、０．０４ｍｍ未
満の時は強度が不足して不都合であり、３ｍｍを越える
時は水への溶解時間がかかり過ぎたり、成型時の絞り性
が悪くなり不都合である。水溶性樹脂層の厚みは総計で
０．０１〜３．０ｍｍ好ましくは０．１〜１．０ｍｍが
適当である。Industrially, the latter method is efficient and profitable. When two or more nonwoven fabrics are used, it is practical to design so that the water-soluble resin layer is interposed between the nonwoven fabrics. The thickness of such a water-soluble nonwoven molded product is 0.04 mm to 3 mm.
When the thickness is less than 0.04 mm, the strength is insufficient, which is inconvenient. When the thickness is more than 3 mm, it takes too much time to dissolve in water, or the drawability during molding becomes poor. It is inconvenient. The total thickness of the water-soluble resin layer is suitably from 0.01 to 3.0 mm, preferably from 0.1 to 1.0 mm.
【００１４】上記工程後に、型打ち抜きや、切り抜きに
より余分な部分が除去され水可溶性不織布成型物が形成
されるが、完成された水可溶性不織布成型物には、ある
程度の耐水性がある方が好ましく、できあがった水溶性
不織布成型物の表面に撥水剤を塗布するが、水溶性樹脂
をフイルム化する時にフッ素系撥水剤を添加しておくの
が好ましい。フッ素系撥水剤は、水可溶性不織布成型物
の表面にマイグレートして耐水性を増し、水滴、体液等
が付着しても膨潤することなく使用に耐えることができ
る。尚、水溶性不織布に最初に撥水剤処理をする方法も
可能であり実用的ではあるが、前記方法と比較して若干
成型性が低下する。After the above process, an excess portion is removed by die-cutting or cutting to form a water-soluble nonwoven molded product. It is preferable that the completed water-soluble nonwoven molded product has a certain degree of water resistance. A water repellent is applied to the surface of the formed water-soluble nonwoven fabric, and it is preferable to add a fluorine-based water repellent when the water-soluble resin is formed into a film. The fluorine-based water repellent migrates to the surface of the water-soluble nonwoven fabric molding to increase water resistance, and can withstand use without swelling even when water droplets, body fluids, etc. adhere. Although a method of first treating the water-soluble nonwoven fabric with a water-repellent agent is possible and practical, the moldability is slightly reduced as compared with the above method.
【００１５】本発明の水可溶性不織布成型体は、包装箱
や、包装箱の中の製品（例えばメロン、お酒、ハム、ビ
デオカメラ、シーエービング、テレビ等）に沿った型の
衝撃緩衝用中敷きやクッション材、衣料用の仮芯地、シ
シュウ用基材、使い捨て食器等として使用してもよい
が、かかる水可溶性不織布成型物を、医療用又は介護用
として使用することが、該成型物の特性を活用した使用
形態であり、好ましい。医療用又は介護用として使用さ
れた手術着、オイフ、ドレープ、シーツ、メス、カン
シ、ピンセット等の手術セットや、寝具、オムツ、雑
巾、手拭き、食器等は、細菌汚染されているが、これら
を水溶性不織布成型物に入れたり包んだりする使用法が
一番好ましい。The molded article of the water-soluble nonwoven fabric according to the present invention is a shock absorbing insole of a type along a packaging box or a product in the packaging box (for example, melon, alcohol, ham, video camera, seaving, television, etc.). And cushioning material, temporary interlining for clothing, substrate for tissue, disposable tableware and the like, but such a water-soluble nonwoven molded product may be used for medical or nursing care, This is a use form utilizing characteristics and is preferable. Surgical gowns, oifs, drapes, sheets, scalpels, kansi, tweezers, and other surgical sets used for medical or nursing care, as well as bedding, diapers, rags, hand towels, tableware, etc., are contaminated with bacteria. The most preferred use is to put or wrap in a water-soluble nonwoven molded product.
【００１６】かくして使用後に細菌汚染された水可溶性
不織布成型物を、消毒剤入りの水、７０℃以上（更には
９５℃以上）の熱水、消毒剤入り７０℃以上の熱水（更
には９５℃以上）のいずれかで消毒溶解することが好ま
しく本発明の効果が遺憾なく発揮でき、重金属が混入し
ていない限りは、下水廃棄も可能となる。又、高圧下で
１００℃以上の熱水による溶解法も殺菌面からは極めて
効率的である。水可溶性不織布成型物の形態としては、
シーツ状、袋状であっても、筒状であっても、箱状であ
っても、トレー状であってもよいが、手軽に投げ入れが
できるためにはトレー状が好ましい。特に、病院では、
金網容器の上に、本発明のトレーを置き、使用汚染され
たメスや、カンシや、ピンセット等の手術用具を置き、
熱水にて、消毒溶解すれば、そのまま、再度、あらたな
手術に使用でき、病院の省力化に非常に役立つ。尚、こ
の時感染防止のためかかるトレーの上を本発明の上蓋や
シーツで覆っても良い。Thus, the water-soluble nonwoven fabric molded article which has been contaminated with bacteria after use can be treated with disinfectant-containing water, hot water of 70 ° C. or more (furthermore, 95 ° C. or more), hot water of disinfectant with 70 ° C. or more (further 95%). (° C. or higher), it is preferable to disinfect and dissolve, and the effects of the present invention can be exhibited without any regret, and sewage disposal is also possible as long as heavy metals are not mixed. Also, a dissolution method using hot water of 100 ° C. or more under high pressure is extremely efficient from the sterilization point of view. As the form of the water-soluble nonwoven molded product,
It may be sheet-like, bag-like, tubular, box-like, or tray-like, but the tray-like is preferred for easy throwing. Especially in hospitals,
Place the tray of the present invention on the wire netting container, place a scalpel or contaminated scalpel used, surgical tools such as tweezers,
If disinfecting and dissolving with hot water, it can be used again for new surgery as it is, which is very useful for saving labor in hospitals. At this time, the tray may be covered with an upper lid or sheets of the present invention to prevent infection.
【００１７】医療用又は介護用の水可溶性不織布成型物
として使用する場合に、水溶性樹脂にヨウ素等の各種抗
菌剤や、フィブリル化繊維等でできた繊維状バインダー
等を添加して安全性を更に高めてもよい。When used as a molded article of a water-soluble nonwoven fabric for medical or nursing care, the safety is improved by adding various antibacterial agents such as iodine, a fibrous binder made of fibrillated fibers, etc. to a water-soluble resin. It may be further increased.
【００１８】[0018]
【実施例】以下、実施例を挙げて本発明を具体的に説明
する。 実施例１ 平均重合度１８００、平均ケン度９９．３モル％のＰＶ
Ａを９０℃の水に溶解し樹脂濃度１５重量％の紡糸原液
を調製した。該原液を孔径０．５ｍｍ、孔数１０００の
口金より飽和芒硝浴へ単繊維繊度が１．５デニールにな
るように吐出させ、糸絛を形成せしめた。しかる後１４
０〜２００℃で８倍延伸し乾燥後、繊維長４５ｍｍに切
断した。The present invention will be specifically described below with reference to examples. Example 1 PV having an average degree of polymerization of 1800 and an average degree of saponification of 99.3 mol%
A was dissolved in 90 ° C. water to prepare a spinning stock solution having a resin concentration of 15% by weight. The stock solution was discharged from a die having a hole diameter of 0.5 mm and a number of holes of 1,000 into a saturated sodium sulfate bath so as to have a single fiber fineness of 1.5 denier, thereby forming a yarn. After 14
The film was stretched 8 times at 0 to 200 ° C., dried, and then cut into a fiber length of 45 mm.
【００１９】上記繊維を平板上にウエブ状に含浸し、ノ
ズル孔０．１ｍｍのノズルから圧力１００ｋｇ／ｃｍ2
の水を水柱状流に噴射させ、圧力ロールで脱水、１００
℃で乾燥して目付７０ｇ／ｍ2のＰＶＡ不織布を製造し
た。一方、平均重合度５００、平均ケン度９９．０モル
％のＰＶＡの２０重量％水溶液（グリセリン１重量％含
有）を調製しこれに上記ＰＶＡ不織布を２枚浸漬して、
固形分付着量がいずれも８ｇ／ｍ2の含漬不織布を得
た。これを熱融着させて全体の厚み０．８ｍｍの水可溶
性不織布成型物を製造した。該成型物の性質を表１に示
す。尚、各物性値は下記によって測定した。A flat plate is impregnated with the above fibers in a web form, and a pressure of 100 kg / cm 2 is applied from a nozzle having a nozzle hole of 0.1 mm.
Of water is jetted into a water columnar flow, dehydrated with a pressure roll, 100
By drying at a temperature of 70 ° C., a PVA nonwoven fabric having a basis weight of 70 g / m 2 was produced. On the other hand, a 20% by weight aqueous solution (containing 1% by weight of glycerin) of PVA having an average degree of polymerization of 500 and an average degree of saponity of 99.0 mol% was prepared, and two pieces of the PVA nonwoven fabric were immersed in the aqueous solution.
An impregnated nonwoven fabric having a solid content of 8 g / m 2 was obtained. This was heat-sealed to produce a water-soluble nonwoven molded article having a total thickness of 0.8 mm. Table 1 shows the properties of the molded product. In addition, each physical property value was measured as follows.
【００２０】（１）熱水溶解性 ３０×３０ｍｍの試験片を３００ｇの熱水中に投入し、
４００ｒｐｍの撹拌下に昇温を続け溶解率が９５％以上
となる温度を測定した。 （２）耐水圧 ＪＩＳ Ｌ １０９２の耐水度試験Ａ法（低水圧）の静
圧法に準じる （３）剛軟度 ＪＩＳ Ｌ １０８５（４１．５度カンチレバー法 ２
０ｃｍ×２０ｃｍ×３枚）に準じる。ＭＤ方向、ＴＤ方
向の平均値 （４）剛軟度の変化 上記の（３）の３０℃、８０ＲＨ％、７日後の変化量
（ｍｍ）を測定 （５）引張強度 ＪＩＳ Ｌ １９１２，６，４による。ＭＤ方向、ＴＤ
方向の平均値(1) Solubility in hot water A test piece of 30 × 30 mm was put into 300 g of hot water,
The temperature was raised while stirring at 400 rpm, and the temperature at which the dissolution rate became 95% or more was measured. (2) Water resistance According to the static pressure method of water resistance test A method (low water pressure) of JIS L 1092 (3) Bending resistance JIS L 1085 (41.5 degree cantilever method 2)
0 cm x 20 cm x 3). Average value in MD direction and TD direction (4) Change in bending resistance Measure the change (mm) after 7 days at 30 ° C., 80 RH% in (3). (5) Tensile strength JIS L 1912,6,4 by. MD direction, TD
Mean value in direction
【００２１】実施例２ 圧力ロールで脱水後の不織布をフッ素系樹脂エマルジョ
ン（大原パラジュウム化学社製 パラガード８２３）に
浸漬し撥水処理した後、脱水乾燥し樹脂分着量０．０１
重量％の不織布を製造した以外は実施例１と同一の実験
を行った。結果を表１に示す。Example 2 A non-woven fabric after dehydration with a pressure roll was immersed in a fluororesin emulsion (Paraguard 823, manufactured by Ohara Palladium Chemical Co., Ltd.) and subjected to a water-repellent treatment.
The same experiment as in Example 1 was performed, except that a non-woven fabric of weight% was manufactured. Table 1 shows the results.
【００２２】実施例３ 平均重合度１２００、平均ケン化度８９モル％のＰＶＡ
を使用した以外は実施例２と同一の実験を行った。結果
を表１に示す。Example 3 PVA having an average degree of polymerization of 1200 and an average degree of saponification of 89 mol%
The same experiment as in Example 2 was performed except that was used. Table 1 shows the results.
【００２３】実施例４ 実施例１のＰＶＡ水溶液にかえて、平均重合度５００、
平均ケン化度８８モル％、オキシエチレン（ｎ＝８）基
含量１．０モル％の変性ＰＶＡ水溶液を用いた以外は実
施例１と同一の実験を行った。結果を表１に示す。Example 4 An average degree of polymerization of 500 was used in place of the aqueous PVA solution of Example 1.
The same experiment as in Example 1 was conducted except that a modified PVA aqueous solution having an average saponification degree of 88 mol% and an oxyethylene (n = 8) group content of 1.0 mol% was used. Table 1 shows the results.
【表１】 実施例１ 実施例２ 実施例３ 実施例４ 熱水溶解性（℃） ９０ ９０ ６０ ７５ 耐水圧（ｍｍ／Ａｑ） ２１０ ４７０ ４３０ ３７０ 剛軟度（ｍｍ） ４５ ６５ ６０ ５５ 剛軟度の変化（ｍｍ） −１ −１ −１ −３ 引張強度（ｋｇｆ／５ｃｍ） ３２ ３４ ２６ ２４ Table 1 Example 1 Example 2 Example 3 Example 4 Hot water solubility (° C.) 90 90 60 75 Water pressure resistance (mm / Aq) 210 470 430 370 Bending degree (mm) 45 65 60 55 55 Degree change (mm) -1 -1 -1 -3 Tensile strength (kgf / 5 cm) 32 34 26 24
【００２４】[0024]
【発明の効果】本発明では廃棄処理のために、早く水に
溶け、下水廃棄でき、薄く軽く、強度があり、吸湿で柔
らかくならない水溶性不織布成型物が得られ、特に医療
用途や介護用途に有用である。According to the present invention, a water-soluble non-woven fabric molded product that dissolves in water quickly, can be disposed of in sewage, is thin, light, strong, and does not become soft due to moisture absorption can be obtained. Useful.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 長谷川 健二 大阪市北区大淀中一丁目１番88号 日本合 成化学工業株式会社内 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Kenji Hasegawa 1-188 Oyodonaka, Kita-ku, Osaka-shi Nippon Gosei Chemical Industry Co., Ltd.
Claims (14)
含浸されてなることを特徴とする水可溶性の不織布又は
布帛成型物。1. A water-soluble non-woven fabric or fabric formed by impregnating a water-soluble non-woven fabric or fabric with a water-soluble resin.
ルコール系不織布又は布帛からなることを特徴とする請
求項１記載の水可溶性の不織布又は布帛成型物。2. The water-soluble nonwoven fabric or fabric molded product according to claim 1, wherein the water-soluble nonwoven fabric or fabric comprises a polyvinyl alcohol-based nonwoven fabric or fabric.
層してなり、その少なくとも１枚の水可溶性不織布又は
布帛に水溶性樹脂が含浸されてなることを特徴とする請
求項１記載の水可溶性の不織布又は布帛成型物。3. The water according to claim 1, wherein two or more water-soluble nonwoven fabrics or fabrics are laminated, and at least one water-soluble nonwoven fabric or fabric is impregnated with a water-soluble resin. Soluble nonwoven fabric or fabric molding.
アルコール系不織布又は布帛であることを特徴とする請
求項３記載の水可溶性の不織布又は布帛成型物。4. The water-soluble nonwoven fabric or fabric molded product according to claim 3, wherein the water-soluble nonwoven fabric or fabric is a polyvinyl alcohol-based nonwoven fabric or fabric.
樹脂、ポリオキシアルキレン基含有ポリビニルアルコー
ル系樹脂、ポリビニルピロリドン系樹脂、ポリアルキレ
ンオキシドから選ばれる少なくとも１種であることを特
徴とする請求項１〜４いずれか記載の水可溶性の不織布
又は布帛成型物。5. The method according to claim 1, wherein the water-soluble resin is at least one selected from a polyvinyl alcohol-based resin, a polyvinyl alcohol-based resin containing a polyoxyalkylene group, a polyvinyl pyrrolidone-based resin, and a polyalkylene oxide. 4. The water-soluble nonwoven fabric or fabric molded product according to any one of 4.
することを特徴とする請求項１〜５いずれか記載の水可
溶性の不織布又は布帛成型物。6. The water-soluble nonwoven fabric or fabric molding according to claim 1, wherein the water-soluble resin has hot melt adhesiveness.
成型又は真空成型により容器に成型されてなることを特
徴とする請求項１〜６いずれか記載の水可溶性の不織布
又は布帛成型物。7. The water-soluble nonwoven fabric or fabric molded product according to claim 1, wherein the water-soluble nonwoven fabric or fabric molded product is molded into a container by compression molding or vacuum molding.
形されてなることを特徴とする請求項７記載の水可溶性
の不織布又は布帛成型物。8. The water-soluble nonwoven fabric or fabric molding according to claim 7, which is formed into a tray by compression molding or vacuum molding.
処理されてなることを特徴とする請求項１〜８いずれか
記載の水可溶性の不織布又は布帛成型物。9. The water-soluble nonwoven fabric or fabric molding according to any one of claims 1 to 8, wherein the water-soluble nonwoven fabric or fabric molding is subjected to a water-repellent treatment.
てなることを特徴とする請求項９記載の水可溶性の不織
布又は布帛成型物。10. The water-soluble nonwoven fabric or fabric molded product according to claim 9, which is subjected to a water-repellent treatment using a fluorine-based water-repellent agent.
撥水処理してなることを特徴とする請求項９〜１０いず
れか記載の水可溶性の不織布又は布帛成型物。11. A method in which a water-repellent agent coexists in a water-soluble resin,
The water-soluble nonwoven fabric or molded fabric according to any one of claims 9 to 10, which is subjected to a water-repellent treatment.
ことを特徴とする請求項１〜１１いずれか記載の水可溶
性の不織布又は布帛成型物。12. The water-soluble nonwoven fabric or fabric molding according to claim 1, which is used as a medical or nursing care base.
剤入りの７０℃以上の熱水のいずれかで消毒溶解するこ
とを特徴とする請求項１〜１２いずれか記載の水可溶性
の不織布又は布帛成型物。13. The water-soluble nonwoven fabric according to claim 1, wherein the non-woven fabric is disinfected and dissolved after use by using hot water of 70 ° C. or higher or hot water of 70 ° C. or higher containing a disinfectant. Or a fabric molding.
に、１００℃以上の熱水、又は消毒剤入りの１００℃以
上の熱水のいずれかで消毒溶解することを特徴とする請
求項１〜１３いずれか記載の水可溶性の不織布又は布帛
成型物。14. The method according to claim 1, wherein after using as a medical or nursing care base, disinfecting and dissolving is performed with hot water of 100 ° C. or higher or hot water of 100 ° C. or higher containing a disinfectant. 13. The water-soluble nonwoven fabric or fabric molded product according to any one of items 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9322309A JPH11140776A (en) | 1997-11-07 | 1997-11-07 | Water-soluble nonwoven fabric or molded fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9322309A JPH11140776A (en) | 1997-11-07 | 1997-11-07 | Water-soluble nonwoven fabric or molded fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11140776A true JPH11140776A (en) | 1999-05-25 |
Family
ID=18142197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9322309A Pending JPH11140776A (en) | 1997-11-07 | 1997-11-07 | Water-soluble nonwoven fabric or molded fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11140776A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001003255A (en) * | 1999-06-23 | 2001-01-09 | Kuraray Co Ltd | Water-soluble nonwoven fabric for agricultural chemical packaging |
| JP2019529256A (en) * | 2016-07-25 | 2019-10-17 | ソルバッグ・エセペアＳＯＬＵＢＡＧ ＳｐＡ | Water-degradable bag |
| CN115125731A (en) * | 2022-06-28 | 2022-09-30 | 广东冠豪新材料研发有限公司 | Water-soluble polyvinyl alcohol non-woven fabric product and preparation method thereof |
| JP2022549309A (en) * | 2019-09-30 | 2022-11-24 | モノソル リミテッド ライアビリティ カンパニー | Nonwoven Water Soluble Composite Structure |
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| JP2001003255A (en) * | 1999-06-23 | 2001-01-09 | Kuraray Co Ltd | Water-soluble nonwoven fabric for agricultural chemical packaging |
| JP2019529256A (en) * | 2016-07-25 | 2019-10-17 | ソルバッグ・エセペアＳＯＬＵＢＡＧ ＳｐＡ | Water-degradable bag |
| JP2022549309A (en) * | 2019-09-30 | 2022-11-24 | モノソル リミテッド ライアビリティ カンパニー | Nonwoven Water Soluble Composite Structure |
| CN115125731A (en) * | 2022-06-28 | 2022-09-30 | 广东冠豪新材料研发有限公司 | Water-soluble polyvinyl alcohol non-woven fabric product and preparation method thereof |
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