JPH03286727A - Hydrolyzable nonwoven fabric and production thereof - Google Patents
Hydrolyzable nonwoven fabric and production thereofInfo
- Publication number
- JPH03286727A JPH03286727A JP2089728A JP8972890A JPH03286727A JP H03286727 A JPH03286727 A JP H03286727A JP 2089728 A JP2089728 A JP 2089728A JP 8972890 A JP8972890 A JP 8972890A JP H03286727 A JPH03286727 A JP H03286727A
- Authority
- JP
- Japan
- Prior art keywords
- water
- fibers
- nonwoven fabric
- woven fabric
- soluble
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000000835 fiber Substances 0.000 claims abstract description 61
- 229920005989 resin Polymers 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 29
- 239000000470 constituent Substances 0.000 claims description 22
- 239000004744 fabric Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 26
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 230000003116 impacting effect Effects 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 20
- 238000001035 drying Methods 0.000 description 13
- 239000004372 Polyvinyl alcohol Substances 0.000 description 12
- 229920002451 polyvinyl alcohol Polymers 0.000 description 12
- 238000007127 saponification reaction Methods 0.000 description 5
- 238000004049 embossing Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 102000009123 Fibrin Human genes 0.000 description 1
- 108010073385 Fibrin Proteins 0.000 description 1
- BWGVNKXGVNDBDI-UHFFFAOYSA-N Fibrin monomer Chemical compound CNC(=O)CNC(=O)CN BWGVNKXGVNDBDI-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229950003499 fibrin Drugs 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000008149 soap solution Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000003232 water-soluble binding agent Substances 0.000 description 1
Landscapes
- Sanitary Thin Papers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〉
本発明は、例えば使用後水洗トイレなどで洗い流せる清
掃布なとの基布として使用することができる不ｌｌｌ布
であって、多量の水に漬けることにより構成繊維間がバ
ラバラに分離して、水と共に洗い流すことができる水解
性不織布及びその製造方法に間する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is a non-woven fabric that can be used as a base fabric for cleaning cloths that can be washed away in flush toilets after use. To provide a water-disintegrable nonwoven fabric whose constituent fibers are separated by soaking and which can be washed away with water, and a method for producing the same.
（従来の技術）
従来、この種の不織布としては、熱水可溶性樹脂、例え
ば熱水可溶性ポリビニルアルコール繊維若しくは粉末を
、パルプなどの構成ｍ維とともに砂槽内に投入し、これ
を抄紙機の金網上に抄い上げて乾燥するといった従来よ
り知られた湿式法により製造されたものがある。(Prior Art) Conventionally, this type of nonwoven fabric has been produced by putting a hot water soluble resin, for example, hot water soluble polyvinyl alcohol fibers or powder, into a sand tank together with constituent fibers such as pulp, and then inserting it into a wire mesh of a paper machine. Some products are manufactured by a conventionally known wet method, such as papering and drying.
この方法では、例えば熱水可溶性ポリビニルアルコール
ｍ維は、乾燥工程の初期において、金網上に抄い上げら
れた繊維層の水分率が３０〜６０％、温度８０℃前後の
条件で接着性を示し、この接着後、ｌ！維離層乾燥が完
了する。従って、ｍ離層の目付があまり大きいと水分量
が増えて、繊維の接着はできるが、乾燥が十分にできな
いという事態が生じる。これを解決するためには、乾燥
温度を上げるか、乾燥時間を長くすれば良いが、乾燥温
度を上げると水分の蒸発が早くなりすぎて接着が不十分
のままで乾燥が進行してしまい、一方、乾燥時間を延ば
すと生産速度が遅くなり生産性が低下する。この様に、
上記方法では温熱状態での接着と繊維層の乾燥とを一工
程で行うため、繊維層の水分量、生産速度、乾燥温度な
どの制約を受け、高い目付の繊維層の処理は実質的に難
しく、通常５０ ｇｉＩＩ２が限界とされていた。また
、この方法により得られる不１ａ布は見掛密度が０．４
ｇ／ｃｍ”以上、多くの場合は０．５ｇ／ｃｒｙ３以上
と緻密な構造となっていた。このため、不織布に嵩高性
がなく、ハンドリング性及びクリーニング性に劣り、汚
れを十分に拭き取ることができないという不具合があっ
た。In this method, for example, hot water-soluble polyvinyl alcohol m-fibers exhibit adhesive properties when the moisture content of the fiber layer formed on a wire mesh is 30 to 60% and the temperature is around 80°C in the early stage of the drying process. , after this gluing, l! Fibrin layer drying is completed. Therefore, if the basis weight of the m-lamination layer is too large, the moisture content will increase, and although the fibers can be bonded, a situation will arise in which sufficient drying cannot be achieved. To solve this problem, you can either raise the drying temperature or lengthen the drying time, but if you raise the drying temperature, the moisture evaporates too quickly and the drying progresses without adhesion. On the other hand, extending the drying time slows down the production rate and reduces productivity. Like this,
In the above method, bonding in a heated state and drying of the fiber layer are performed in one step, so it is subject to restrictions such as the moisture content of the fiber layer, production speed, drying temperature, etc., and it is practically difficult to process a fiber layer with a high basis weight. , 50 gII2 was usually considered to be the limit. In addition, the non-1a fabric obtained by this method has an apparent density of 0.4
g/cm" or more, and in many cases 0.5 g/cry3 or more, and had a dense structure. For this reason, the nonwoven fabric lacked bulk and had poor handling and cleaning properties, making it difficult to wipe away dirt sufficiently. There was a problem that I couldn't do it.
又、別の不織布としては、乾式法により形成した繊維ウ
ェブに水溶性バインダーを含浸し乾燥したものがある。Another type of nonwoven fabric is one obtained by impregnating a fibrous web formed by a dry process with a water-soluble binder and drying it.
ところが、このものは、水に漬けることによって容易に
バインダーが溶けてしまい、ウェット強度が無く、洗浄
液等を含浸させた湿潤用の清掃布として使用することが
できないものであった。However, the binder of this cloth easily dissolves when soaked in water, and it lacks wet strength, making it impossible to use it as a wet cleaning cloth impregnated with a cleaning liquid or the like.
更に、別の不織布としては、不織布形成後に繊維を化学
処理によって水溶性としたものがある。Furthermore, other nonwoven fabrics include those in which the fibers are chemically treated to become water-soluble after the nonwoven fabric is formed.
ところが、この不縁布にあっては、特定の１ｍ雄でしか
不織布を構成することができず、又、繊維を水溶性化す
る処理は大変に煩雑であった。However, this non-woven fabric can only be made of a specific 1m fiber, and the treatment to make the fibers water-soluble is very complicated.
（発明が解決しようとする課題）
本発明は、このような事情に鑑みなされたものであり、
クリーニング性及びハンドリング性に劣る、清掃布の基
布として使用できる程度のウェット強度が出せない、特
定の繊維でしか構成できず、製造工程がＴＬ雑であると
いった従来のこの種の不ｍ布における課題の解決を図っ
たものである。(Problem to be solved by the invention) The present invention has been made in view of the above circumstances,
Conventional non-woven fabrics of this type have poor cleaning and handling properties, cannot produce enough wet strength to be used as a base fabric for cleaning cloths, can only be composed of specific fibers, and have complicated manufacturing processes. This is an attempt to solve the problem.
本発明は、例えば使用後水洗トイレなどで洗い流せる清
掃布なとの基布として使用することができる不縁布であ
って、多量の水に漬けることにより構成縁ｉ間がバラバ
ラに分離して、水と共に洗い流すことができる水解性不
織布及びその製造方法を提供しようとするものである。The present invention is a non-woven fabric that can be used as a base fabric for a cleaning cloth that can be washed away in a flush toilet after use, for example, and when soaked in a large amount of water, the constituent edges I separate into pieces. The present invention aims to provide a water-disintegrable nonwoven fabric that can be washed away with water and a method for producing the same.
（課題を解決するための手段及び作用）上記目的を達成
するため、請求項１記教の発明にあっては、 「パルプ
等の構成繊維相互間が水溶性熱融着性樹脂により熱ｌ！
Ｉ！着されている目付５０〜３００ｇ／ｍ２で見掛密度
０．０６〜０．４ｇ／ ｃ ｍ ３の水解性不織布」を
その要旨とした。(Means and effects for solving the problem) In order to achieve the above object, in the invention of claim 1, ``The constituent fibers of pulp etc. are heated by a water-soluble heat-fusible resin.
I! The gist of the nonwoven fabric is ``a water-decomposable nonwoven fabric with a fabric weight of 50 to 300 g/m2 and an apparent density of 0.06 to 0.4 g/cm3''.
請求項１記載の水解性不織布を第１図及び第２図に従っ
て説明する。The water-disintegrable nonwoven fabric according to claim 1 will be explained with reference to FIGS. 1 and 2.
本発明の水解性不織布（１）を構成する繊ｍ（２）とし
ては、パルプ！！維或はレーヨン繊維が好適に用いられ
ており、これら構成縁１’！ （２）がランダムな状態
で集積され、構成繊維（２）相互が水溶性熱融着性樹脂
（３）により熱融着されているのである。The fiber m(2) constituting the water-disintegrable nonwoven fabric (1) of the present invention is pulp! ! fiber or rayon fiber is preferably used, and these constituent edges 1'! (2) are accumulated in a random state, and the constituent fibers (2) are thermally fused to each other by the water-soluble heat-fusible resin (3).
水溶性熱融着性樹脂（３）としては、例えば重合度が５
００以下でありケン化度が２０−１００モル％の範回の
ポリビニルアルコール（ＰＶＡ）の繊維又は粉末を挙げ
ることができる。このポリビニルアルコールは、紙用の
水溶性接着剤として従来より知られた重合度が５００〜
２０００、ケン化度が８０〜１００モル％の範囲のポリ
ビニルアルコールとは異なり、水溶性とともに熱融着性
を備えたものである。尚、水溶性熱融着性樹脂（３）と
しては、水溶性と熱＃１着性とを兼備した合成樹脂であ
るならば何でもよく、上記ポリビニルアルコールに限定
されるものではない。For example, the water-soluble heat-fusible resin (3) has a polymerization degree of 5.
Polyvinyl alcohol (PVA) fibers or powder having a saponification degree of 0.00 or less and a saponification degree ranging from 20 to 100 mol% can be mentioned. This polyvinyl alcohol has a polymerization degree of 500 to 500, which is conventionally known as a water-soluble adhesive for paper.
Unlike polyvinyl alcohol having a saponification degree of 80 to 100 mol %, it has water solubility and heat-fusibility. The water-soluble heat-fusible resin (3) may be any synthetic resin that has both water-solubility and thermal #1 adhesion, and is not limited to the above-mentioned polyvinyl alcohol.
この水溶性熱融着性樹脂（３）により構成繊維（２）相
互が熱融着されて成る水解性不織布（１）にあっては、
その目付が５０〜３００ｇ／ｍ２ 好ましくは７０〜
１８０ｇ／ｍ２ 見ｍ密度が０．０６〜０．４ｇ／ｃｍ
” 好ましくは０．０８〜０゜１５ｇ／ｃｍ３の範囲
となっている。In the water-disintegrable nonwoven fabric (1) in which the constituent fibers (2) are heat-fused to each other by the water-soluble heat-fusible resin (3),
Its basis weight is 50~300g/m2, preferably 70~
180g/m2 M density is 0.06~0.4g/cm
” It is preferably in the range of 0.08 to 0.15 g/cm3.
上に述べた如く、本発明の水解性不織布の見掛密度は０
．０６〜０．４ｇ／ｃｍ’の範囲となっているが、この
数値は、例えば清掃布としての一定のクリーニング性を
確保するための数値、つまり当該不縁布において！Ｉ！
維相互間に所定のＦｉｉ間を確保するための数値なので
ある。従って、例えばこの数値を大きくすればするほど
当該不織布は緻密な構造となり嵩高性がなくなりクリー
ニング性は低くなることになる。また、目付は５０〜３
００ｇ／ｍ２の範囲となっているが、この数値は、シー
トとして使用したときの取り扱い性を考慮したものであ
る。As mentioned above, the apparent density of the water-disintegrable nonwoven fabric of the present invention is 0.
．． This value is in the range of 06 to 0.4 g/cm', for example, to ensure a certain level of cleaning performance as a cleaning cloth, that is, for the non-woven cloth. I!
This is a value to ensure a predetermined Fii distance between fibers. Therefore, for example, the larger this value is, the more dense the structure of the nonwoven fabric becomes, the less bulky it is, and the lower the cleaning performance becomes. Also, the basis weight is 50-3
This value is in the range of 00 g/m2, but this value takes into account the ease of handling when used as a sheet.
本発明の不織布は、構成ｍ維がランダムに絡み合うと共
に、各構成Ｊ！Ｉ維間には前述した水溶性熱融着性樹脂
が分散した状態となっており、各構成繊維相互はこの水
溶性熱融着性樹脂によって熱融着され結合された状態と
なっている。In the nonwoven fabric of the present invention, m fibers are randomly intertwined, and J! The above-mentioned water-soluble heat-fusible resin is dispersed in the I fibers, and the constituent fibers are thermally fused and bonded to each other by the water-soluble heat-fusible resin.
以上述べた如く構成された当該不織布（１）にあっては
、多量の水に浸すことにより、構成繊維（２）相互を結
合している水溶性熱融着性樹脂（３）が溶解し、当該不
ｍ布（１）は構成繊維（２）のみからなる積層体となり
、流水、その他の衝撃、引っ張り、引裂により容易に構
成繊維間がバラバラに分離するようになっている。また
、上に示した範囲内の目付及び見掛密度のものの場合、
洗浄液などを付着させてウェットな状態としても、使用
に耐え得るウェット強度が維持できるようになっている
。In the nonwoven fabric (1) constructed as described above, by soaking it in a large amount of water, the water-soluble heat-fusible resin (3) that binds the constituent fibers (2) to each other dissolves, The non-mold fabric (1) is a laminate consisting only of the constituent fibers (2), and the constituent fibers are easily separated by running water, other impacts, pulling, or tearing. In addition, if the weight and apparent density are within the range shown above,
It is designed to maintain wet strength that can withstand use even when it is wet with cleaning liquid or the like.
このような水解性不織布の用途としては、使用後、水洗
トイレなどで流せる清掃布の基布として、或は人体やプ
ラスチック、陶磁器等の表面洗浄を行う石鹸液などの洗
浄液を含浸させた湿潤用の清掃布として使用することが
できる。Such water-disintegrable nonwoven fabrics can be used as base fabrics for cleaning cloths that can be flushed away in flush toilets after use, or as wet cloths impregnated with cleaning liquids such as soap solutions for cleaning the human body, plastics, ceramics, etc. Can be used as a cleaning cloth.
次に、請求項２記載の発明を、第１図、第２図、第３図
、第４図、第５図に従って説明する。Next, the invention according to claim 2 will be explained with reference to FIGS. 1, 2, 3, 4, and 5.
請求項２記載の発明は、 「パルプ繊維等の構成繊維と
水溶性熱融着性樹脂とをエアーレイ法により混合集積し
てウエブを形威し、次いで加熱加圧処理して構成繊維相
互間を水溶性熱融着性樹脂によって結合させることを特
徴とする水解性不織布の製造方法」をその要旨とした。The invention as claimed in claim 2 is, ``Constituent fibers such as pulp fibers and water-soluble heat-fusible resin are mixed and aggregated by an air-lay method to form a web, and then heated and pressurized to bond the constituent fibers together. The gist of the paper was ``A method for producing a water-disintegrable nonwoven fabric characterized by bonding using a water-soluble heat-fusible resin.''
請求項２記載の水解性不縁布の製造方法にあっては、
ａ：パルプ繊維等の構成繊維と水溶性熱融着性樹脂とを
エアーレイ法により混合集積してウエブを形成する工程
と、
ｂ：加熱加圧処理して構成繊維相互間を水溶性熱融着性
樹脂によって結合させる工程とに分けることができる。The method for producing a water-disintegrable non-woven fabric according to claim 2 includes: a: mixing and condensing constituent fibers such as pulp fibers and a water-soluble heat-fusible resin by an air-lay method to form a web; b: The process can be divided into a step of applying heat and pressure treatment to bond the constituent fibers together using a water-soluble heat-fusible resin.
まず、工程ａについて説明する。First, step a will be explained.
パルプ繊維或はレーヨン繊維等の構成繊維と、水溶性熱
融着性樹脂、例えば重合度が５００以下でありケン化度
が２０〜１００モル％の範囲のポリビニルアルコール（
ＰＶＡ）の繊維又は粉末とをエアーレイ法によって均一
に混合してシート状に集積し繊維ウエブを形成する。尚
、この場合、予め水易分散性！（４）を配しておき、こ
の水易分散性紙（４）上に繊維を集積するようにしても
良い。また、前記！ｌＩ維ウェブの上下に水易分散性紙
（４）（４）を配するようにしても良い。Constituent fibers such as pulp fibers or rayon fibers, water-soluble heat-fusible resin, such as polyvinyl alcohol with a degree of polymerization of 500 or less and a degree of saponification of 20 to 100 mol% (
PVA) fibers or powder are uniformly mixed by an air-lay method and accumulated into a sheet to form a fibrous web. In addition, in this case, it is easy to disperse in water! (4) may be provided and the fibers may be accumulated on this water easily dispersible paper (4). Also, the above! Water easily dispersible papers (4) (4) may be arranged above and below the II fiber web.
次いでこれを加熱加圧処理して、水溶性熱融着性樹脂（
３）を熱融着させ、構成繊維（２）相互間を水溶性熱融
着性樹脂（３）で結合する。Next, this is heated and pressure treated to form a water-soluble heat-fusible resin (
3) are thermally fused, and the constituent fibers (2) are bonded to each other using a water-soluble heat-fusible resin (3).
加熱加圧処理は、加熱エンボスローラ（５）等を用い、
１２０〜２３０℃、５〜１００Ｋｇ／ｃｍ２の条件の下
、前記工程により得た繊維ウエブをローラ（５）（５）
間に通すことにより行う。The heating and pressure treatment uses a heated embossing roller (5), etc.
Under the conditions of 120 to 230°C and 5 to 100 Kg/cm2, the fibrous web obtained in the above step is passed through rollers (5) (5).
This is done by passing it in between.
（実施例）
１８ｇ／ｗ＋２の水易分散性紙上にエアーレイ法により
粉砕パルプ繊維６０８／−と６０メツシユを通過する粉
末状のポリビニルアルコール樹脂（重合度＋５０ 。(Example) Powdered polyvinyl alcohol resin (degree of polymerization +50) passed through 608/- and 60 meshes of crushed pulp fibers by air-laying on 18 g/w+2 water-dispersible paper.
ケン化度７０モル％）６８１１Ｉ２とを均一に混合し集
積してシート状とし、更にこの上に水易分散性紙を積層
した後加熱エンボスロールを用い、１９０℃、８０にｇ
／ｌＮの条件で熱処理を施し三層構造の水解性不織布を
得た。6811I2 (saponification degree: 70 mol%) was uniformly mixed and aggregated to form a sheet, and after laminating water-easily dispersible paper on top of this, using a heated embossing roll, it was heated to 80 g at 190°C.
A water-disintegrable nonwoven fabric with a three-layer structure was obtained by heat treatment under the conditions of /lN.
得られた水解性不織布は多量の水に浸すことにより吸水
し、中心に配された層を構成する水溶性熱融着性樹脂で
あるポリビニルアルコールＩＩＭＦｌが溶解し、同じく
層を構成するパルプ繊維のみの積層体となり、流水、そ
の他の衝撃、引っ張り、弓裂により簡単に水分散し、水
と共に洗い流すことができる。The obtained water-disintegrable nonwoven fabric absorbs water by soaking it in a large amount of water, and the polyvinyl alcohol IIMFl, which is a water-soluble heat-fusible resin that makes up the center layer, dissolves, and only the pulp fibers that make up the layer also dissolve. It becomes a laminate and can be easily dispersed by running water, other impacts, pulling, or cracking, and can be washed away with water.
又、得られた水解性不織布は０．４重量部程度の含水量
では水溶性熱融着性樹脂であるポリビニルアルコール樹
脂が溶解することはなく、例えばムース状の石鹸液など
の洗浄液を該シートに付着させた程度の水分ではシート
強度を保ち、人体は勿論プラスチック、陶磁器等の表面
洗浄時の拭き取り特性、−船釣に言われるウェット強度
、耐摩耗性、リントフリー性等を備えている。また、ア
ルコール（水／アルコール： ３０／Ｔｏ ）などの含
浸ではその強度が十分に保持される。In addition, the obtained water-disintegrable nonwoven fabric does not dissolve the polyvinyl alcohol resin, which is a water-soluble heat-fusible resin, at a water content of about 0.4 parts by weight. The sheet maintains its strength even when the moisture is attached to it, and it has wiping properties when cleaning surfaces such as the human body, plastics, and ceramics, and has the wet strength, abrasion resistance, and lint-free properties required for boat fishing. Furthermore, impregnation with alcohol (water/alcohol: 30/To) maintains its strength sufficiently.
（発明の効果）
上記構成を備えたことにより、請求項１記載の水解性不
織布によれば、多量の水に浸すことにより、構成繊維相
互を結合している水溶性熱融着性樹脂が溶解し、構成繊
維のみからなるＭ履体となる。このため、流水、その他
の衝撃、引っ張り、引裂により簡単にＩＩ維間がバラバ
ラに分離し、水と共ζこ洗い流すことができる。また、
請求項１記載の水解性不ｍ布においては、目付が５０〜
３００ｇ／ｍ２で見掛密度０−０６〜０．４ｇ／ｃｍ”
であり粗く嵩高なものとなっている。このため、クリー
ニング性に優れ汚れを十分に拭き取ることができる。更
に、この水解性不織布は、構成ａｍ相互間が水溶性熱融
着性樹脂によって熱融着されており、例えば洗浄液など
を含浸させた湿潤用の清掃布として使用することができ
る。(Effects of the Invention) With the above structure, the water-disintegrable nonwoven fabric according to claim 1 can be immersed in a large amount of water to dissolve the water-soluble heat-fusible resin that binds the constituent fibers together. However, the M shoe body is made of only the constituent fibers. Therefore, the II fibers can be easily separated into pieces by running water, other impacts, pulling, or tearing, and can be washed away together with water. Also,
The water-disintegrable non-m fabric according to claim 1 has a basis weight of 50 to
Apparent density 0-06~0.4g/cm at 300g/m2
It is coarse and bulky. Therefore, the cleaning property is excellent and dirt can be sufficiently wiped off. Furthermore, this water-disintegrable nonwoven fabric has its constituent parts am heat-sealed by a water-soluble heat-fusible resin, and can be used, for example, as a wet cleaning cloth impregnated with a cleaning liquid.
又、請求項２記載の水解性不織布の製造方法によれば、
エアーレイ法によって繊維を集積するようにしたため、
従来の方法においては限界とされていた目付５０ｇ／ｍ
２を上回り、見掛密度が０゜４ ｇ ／ ｃ ｍ ’を
下回る高目付、低密度の不ｍ布を得ることができ、得ら
れた不織布はクリーニング性に優れており、しかも引張
強度や耐摩耗性に優れており、ウェットな状態でも使用
に耐え得る強度を備えた不織布を得ることができる。Moreover, according to the method for producing a water-disintegrable nonwoven fabric according to claim 2,
Because the fibers were accumulated using the air lay method,
Fabric weight of 50g/m, which was considered to be the limit in conventional methods.
It is possible to obtain a high basis weight, low density nonwoven fabric with an apparent density of more than 2 and an apparent density of less than 0°4 g/cm', and the obtained nonwoven fabric has excellent cleaning properties, and has low tensile strength and durability. It is possible to obtain a nonwoven fabric that has excellent abrasion resistance and is strong enough to withstand use even in wet conditions.
第１図は本発明の水解性不織布を模式的に示した拡大断
面図、第２図は本発明の水解性不織布の別の例を模式的
に示した拡大断面図、第３図は水易分散性紙上に繊維を
集積した状態を模式的に示した拡大断面図、第４図は繊
維ウェブの上下に水易分散性紙を配した状態を模式的に
示した拡大断面図、第５図は第４図に示した繊維ウエブ
を熱エンボスロール間に通している状態を模式的に示し
た拡大断面図である。
符号の説明
（２）・・・構成Ｈ＆Ｉ、
（３）・−・水溶性熱融着性樹脂、
（４）・・・水易分散性紙、
（５）・・・熱エンボスロール。FIG. 1 is an enlarged sectional view schematically showing a water-disintegrable nonwoven fabric of the present invention, FIG. 2 is an enlarged sectional view schematically showing another example of the water-disintegrable nonwoven fabric of the present invention, and FIG. FIG. 4 is an enlarged sectional view schematically showing a state in which fibers are accumulated on dispersible paper; FIG. 5 is an enlarged sectional view schematically showing a state in which the fiber web shown in FIG. 4 is passed between hot embossing rolls. Explanation of symbols (2)...Constitution H&I, (3)...Water-soluble heat-fusible resin, (4)...Water easily dispersible paper, (5)...Hot embossing roll.
Claims (2)
樹脂により熱融着されている目付５０〜３００ｇ／ｍ＾
２で見掛密度０．０６〜０．４ｇ／ｃｍ＾３の水解性不
織布。(1) Fabric weight of 50 to 300 g/m^ in which constituent fibers such as pulp fibers are heat-fused with water-soluble heat-fusible resin.
2 is a water-disintegrable nonwoven fabric with an apparent density of 0.06 to 0.4 g/cm^3.
をエアーレイ法により混合集積してウエブを形成し、次
いで加熱加圧処理して構成繊維相互間を水溶性熱融着性
樹脂によって結合させることを特徴とする水解性不織布
の製造方法。(2) Constituent fibers such as pulp fibers and water-soluble heat-fusible resin are mixed and aggregated using an air-lay method to form a web, and then heated and pressurized to bond the constituent fibers with water-soluble heat-fusible resin. A method for producing a water-disintegrable nonwoven fabric, the method comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2089728A JP2955872B2 (en) | 1990-04-03 | 1990-04-03 | Water-disintegratable nonwoven fabric and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2089728A JP2955872B2 (en) | 1990-04-03 | 1990-04-03 | Water-disintegratable nonwoven fabric and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03286727A true JPH03286727A (en) | 1991-12-17 |
| JP2955872B2 JP2955872B2 (en) | 1999-10-04 |
Family
ID=13978820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2089728A Expired - Fee Related JP2955872B2 (en) | 1990-04-03 | 1990-04-03 | Water-disintegratable nonwoven fabric and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2955872B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06136655A (en) * | 1992-07-02 | 1994-05-17 | Honshu Paper Co Ltd | Production of water-soluble paper |
| GB2284820A (en) * | 1993-12-16 | 1995-06-21 | Kimberly Clark Co | Flushable compositions |
| WO2015182784A1 (en) * | 2014-05-30 | 2015-12-03 | 山田 菊夫 | Fiber sheet |
-
1990
- 1990-04-03 JP JP2089728A patent/JP2955872B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06136655A (en) * | 1992-07-02 | 1994-05-17 | Honshu Paper Co Ltd | Production of water-soluble paper |
| GB2284820A (en) * | 1993-12-16 | 1995-06-21 | Kimberly Clark Co | Flushable compositions |
| GB2284820B (en) * | 1993-12-16 | 1998-04-15 | Kimberly Clark Co | Flushable compositions |
| WO2015182784A1 (en) * | 2014-05-30 | 2015-12-03 | 山田 菊夫 | Fiber sheet |
| CN106457751A (en) * | 2014-05-30 | 2017-02-22 | 山田菊夫 | Fiber sheet |
| JPWO2015182784A1 (en) * | 2014-05-30 | 2017-04-20 | 山田 菊夫 | Fiber sheet |
| JP2018138164A (en) * | 2014-05-30 | 2018-09-06 | 山田 菊夫 | Fiber sheet |
| CN106457751B (en) * | 2014-05-30 | 2019-10-08 | 山田菊夫 | Fibre sheet material |
| US10441978B2 (en) | 2014-05-30 | 2019-10-15 | Kikuo Yamada | Fiber sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2955872B2 (en) | 1999-10-04 |
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