JPH06280163A - Production of moisture-permeable waterproof coating cloth - Google Patents
Production of moisture-permeable waterproof coating clothInfo
- Publication number
- JPH06280163A JPH06280163A JP8929693A JP8929693A JPH06280163A JP H06280163 A JPH06280163 A JP H06280163A JP 8929693 A JP8929693 A JP 8929693A JP 8929693 A JP8929693 A JP 8929693A JP H06280163 A JPH06280163 A JP H06280163A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- coating
- moisture
- cloth
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は，防水性能と透湿性能の
優れた透湿防水性コーティング布帛の製造方法に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a moisture-permeable waterproof coated cloth having excellent waterproof and moisture-permeable properties.
【０００２】[0002]
【従来の技術】コーティング方法には，従来から湿式コ
ーティング法と乾式コーティング法があり，湿式コーテ
ィング用樹脂は，通常Ｎ，Ｎ−ジメチルホルムアミドを
主溶媒としているため揮発性が低く，このことが原因
で，メチルエチルケトン，トルエン，酢酸エチル等を主
溶媒としている乾式コーティング用樹脂と比較して，コ
ーティング加工時に基布表面，すなわちコーティング面
の裏面への樹脂洩れが生じやすいという問題を有してい
た。2. Description of the Related Art Conventional coating methods include wet coating methods and dry coating methods. Since resins for wet coating usually use N, N-dimethylformamide as a main solvent, they are low in volatility. However, compared with a dry coating resin containing methyl ethyl ketone, toluene, ethyl acetate, etc. as a main solvent, there is a problem that resin leakage is likely to occur on the surface of the base cloth, that is, the back surface of the coating surface during the coating process.
【０００３】この樹脂洩れを防ぐため，コーティングに
使用する基布を高密度化したり，基布に撥水加工を施し
たり，また，カレンダー加工により基布の目潰しを行っ
たりする手段を講じているが，樹脂洩れを完全に防止す
ることは難しく，利用できる基布は限定された基布とな
る場合が多い。In order to prevent this resin leakage, measures are taken to densify the base cloth used for coating, to make the base cloth water repellent, and to calender the base cloth by calendering. However, it is difficult to completely prevent resin leakage, and the usable base fabric is often a limited base fabric.
【０００４】また，使用する基布の繊維径が太い場合
（例えばナイロンフィラメント２００デニール以上の織
物）には，カレンダー加工を行っても基布の凹凸感が強
くて平滑性に乏しいため，１回のコーティング加工で完
全に樹脂皮膜を形成しようとすると厚塗りをしなければ
ならず，厚塗りにより何とか樹脂被覆したとしても，得
られるコーティング布帛の耐水圧は不十分となりやす
い。When the fiber diameter of the base cloth used is large (for example, a woven fabric having a nylon filament of 200 denier or more), the base cloth has a strong unevenness and lacks smoothness even if calendering is performed. In order to completely form a resin film by the coating process described above, thick coating must be applied, and even if the resin is coated by thick coating, the water resistance of the resulting coated fabric tends to be insufficient.
【０００５】一方，湿式コーティング用樹脂としては，
一般にポリウレタン樹脂が最も多く用いられており，通
常アニオン系界面活性剤，ノニオン系界面活性剤，親水
性高分子等を併用して透湿度の向上をはかっているが，
厚塗りとなるため，１回のコーティングで得られる透湿
度は６０００ｇ／ｍ2・２４ｈ以下になってしまって十
分ではなく，特に，厚地織物にコーティングを行う場合
には，透湿度が２０００〜５０００ｇ／ｍ2・２４ｈ以
下と大きく低下するだけでなく，耐水圧も高々0.３〜0.
４kgf／cm2 程度の性能しか得られていないのが現状で
ある。On the other hand, as a resin for wet coating,
In general, polyurethane resin is most often used, and usually anionic surfactants, nonionic surfactants, hydrophilic polymers, etc. are used together to improve water vapor transmission rate.
Since it is a thick coating, the water vapor transmission rate obtained by one coating is less than 6000 g / m 2 · 24 h, which is not sufficient. Especially, when coating a thick fabric, the water vapor transmission rate is 2000 to 5000 g. / M 2 · 24h or less, and not only the water pressure resistance is at most 0.3 to 0.
At present, only performance of about 4 kgf / cm 2 is obtained.
【０００６】[0006]
【発明が解決しようとする課題】本発明はこのような現
状に鑑みて行われたもので，布帛の裏面への樹脂洩れを
生じることなく，優れた防水性能と透湿性能を兼ね備え
た透湿防水性コーティング布帛を製造することを目的と
するものである。SUMMARY OF THE INVENTION The present invention has been made in view of such a situation as described above, and does not cause resin leakage to the back surface of a fabric, and has excellent moisture permeability and moisture permeability. The purpose is to produce a waterproof coated fabric.
【０００７】[0007]
【課題を解決するための手段】本発明は，上記目的を達
成するもので，次の構成よりなるものである。すなわ
ち，本発明は，「繊維布帛上に，アクリル樹脂および／
またはポリウレタン樹脂を主体とする合成重合体溶液を
塗布し，乾式製膜する第１工程，該樹脂膜上に平均粒径
が１μｍ以下で，かつＮ，Ｎ−ジメチルホルムアミドの
吸着量が２００ミリリットル／１００ｇ以上の無機微粉
末を１重量％以上含有させたポリウレタン樹脂主体の合
成重合体溶液を塗布し，湿式製膜する第２工程よりなる
ことを特徴とする透湿防水性コーティング布帛の製造方
法」を要旨とするものである。SUMMARY OF THE INVENTION The present invention achieves the above object and has the following configuration. That is, the present invention relates to "on a fiber cloth, acrylic resin and / or
Alternatively, a first step of applying a synthetic polymer solution mainly composed of a polyurethane resin to form a dry film, having an average particle diameter of 1 μm or less on the resin film, and adsorbing 200 ml of N, N-dimethylformamide / A method for producing a moisture-permeable waterproof coating fabric, comprising a second step of applying a synthetic polymer solution mainly composed of a polyurethane resin containing 100 g or more of inorganic fine powder in an amount of 1% by weight or more and performing wet film formation ” Is the gist.
【０００８】以下，本発明について詳細に説明を行う。The present invention will be described in detail below.
【０００９】本発明で用いられる繊維布帛としては，ナ
イロン６やナイロン６６で代表されるポリアミド系合成
繊維，ポリエチレンテレフタレートで代表されるポリエ
ステル系合成繊維，ポリアクリロニトリル系合成繊維，
ポリビニルアルコール系合成繊維，トリアセテート等の
半合成繊維，あるいはナイロン６／木綿，ポリエチレン
テレフタレート／木綿等の混合繊維からなる織物，編
物，不織布等を挙げることができる。The fiber cloth used in the present invention includes polyamide synthetic fibers represented by nylon 6 and nylon 66, polyester synthetic fibers represented by polyethylene terephthalate, polyacrylonitrile synthetic fibers,
Examples thereof include woven fabrics, knitted fabrics, non-woven fabrics and the like made of polyvinyl alcohol synthetic fibers, semi-synthetic fibers such as triacetate, or mixed fibers such as nylon 6 / cotton and polyethylene terephthalate / cotton.
【００１０】本発明では，上記の繊維布帛に撥水剤処理
を施したものを用いてもよい。これは，樹脂溶液の布帛
内部への浸透を防ぐための一手段である。この場合の撥
水剤としては，パラフィン系撥水剤やポリシロキサン系
撥水剤，フッ素系撥水剤等の公知のものでよく，その処
理も，一般に行われているパディング法，スプレー法等
の公知の方法で行えばよい。特に良好な撥水性を必要と
する場合には，フッ素系撥水剤を使用し，例えば，アサ
ヒガード７３０（旭硝子株式会社製，フッ素系撥水剤エ
マルジョン）を５％の水分散液でパディング（絞り率３
５％）した後，１６０℃で１分間の熱処理を行う方法等
によって行えばよい。In the present invention, the above-mentioned fiber cloth treated with a water repellent may be used. This is one means for preventing the penetration of the resin solution into the fabric. In this case, the water repellent may be a known one such as a paraffin water repellent, a polysiloxane water repellent, or a fluorine water repellent, and the treatment thereof is also a commonly used padding method, spray method, or the like. The known method may be used. When particularly good water repellency is required, a fluorine-based water repellent is used. For example, Asahi Guard 730 (Asahi Glass Co., Ltd., fluorine-based water repellent emulsion) is padded with a 5% aqueous dispersion ( Aperture ratio 3
5%), and then heat treatment at 160 ° C. for 1 minute.
【００１１】本発明では，上記繊維布帛上に，第１工程
としてアクリル樹脂および／またはポリウレタン樹脂を
主体とする合成重合体の溶液を塗布し，乾燥して樹脂膜
を形成する，いわゆる乾式コーティング法による製膜を
行う。In the present invention, a so-called dry coating method in which a solution of a synthetic polymer mainly containing an acrylic resin and / or a polyurethane resin is applied on the above-mentioned fiber cloth and dried to form a resin film in the first step To form a film.
【００１２】ここで用いるアクリル樹脂は，主としてア
クリル酸，メタクリル酸，または，これらの誘導体の重
合体から成っていれば何れでもよく，一般には，アクリ
ル酸メチル，アクリル酸エチル，アクリル酸ブチルなど
のアクリル酸エステル，メタクリル酸メチル，メタクリ
ル酸エチル，メタクリル酸ブチルなどのメタクリル酸エ
ステルを主成分とした重合体を用いる。The acrylic resin used here may be any one mainly composed of a polymer of acrylic acid, methacrylic acid, or a derivative thereof, and is generally methyl acrylate, ethyl acrylate, butyl acrylate or the like. Polymers containing methacrylic acid esters such as acrylic acid ester, methyl methacrylate, ethyl methacrylate, butyl methacrylate, etc. as the main component are used.
【００１３】ここでいうアクリル樹脂を主体とする合成
重合体とは，上述のアクリル樹脂を５０〜１００％含む
合成重合体をいい，その他の合成重合体として，例えば
アクリロニトリル，アクリルアミド，ウレタン，酢酸ビ
ニル，塩化ビニル，スチレン等からなる高分子が５０％
未満の範囲で含まれていてもよく，その形態は共重合体
でもブレンドでもよい。The synthetic polymer mainly composed of acrylic resin as used herein means a synthetic polymer containing 50 to 100% of the above-mentioned acrylic resin, and other synthetic polymers such as acrylonitrile, acrylamide, urethane and vinyl acetate. 50% of polymers composed of vinyl chloride, styrene, etc.
It may be contained in the range below, and the form may be a copolymer or a blend.
【００１４】また本発明で用いるポリウレタン樹脂は，
ポリイソシアネートとポリオールを反応せしめて得られ
る共重合体であり，イソシアネート成分として，芳香族
ジイソシアネート，脂肪族ジイソシアネート，脂環族ジ
イソシアネートの単独またはこれらの混合物を用い，例
えば，トリレン2,４−ジイソシアネート，４，4'−ジフ
ェニルメタンジイソシアネート，1,６−ヘキサンジイソ
シアネート，1,４−シクロヘキサンジイソシアネート等
を用い，また，ポリオール成分としては，ポリエーテル
ポリオール，ポリエステルポリオールを用い，ポリエー
テルポリオールは，ポリエチレングリコール，ポリプロ
ピレングリコール，ポリテトラメチレングリコール等を
用い，ポリエステルポリオールは，エチレングリコー
ル，プロピレングリコール等のジオールとアジピン酸，
セバチン酸等の２塩基酸との反応生成物やカプロラクト
ン等の開環重合物を用いる。The polyurethane resin used in the present invention is
A copolymer obtained by reacting a polyisocyanate and a polyol, wherein an aromatic diisocyanate, an aliphatic diisocyanate, an alicyclic diisocyanate alone or a mixture thereof is used as an isocyanate component, for example, tolylene 2,4-diisocyanate, 4,4'-diphenylmethane diisocyanate, 1,6-hexane diisocyanate, 1,4-cyclohexane diisocyanate, etc. are used, and as the polyol component, polyether polyol or polyester polyol is used, and the polyether polyol is polyethylene glycol, polypropylene. Glycol, polytetramethylene glycol, etc. are used. Polyester polyols include diols such as ethylene glycol, propylene glycol and adipic acid,
A reaction product with a dibasic acid such as sebacic acid or a ring-opening polymer such as caprolactone is used.
【００１５】本発明でいうポリウレタン樹脂を主体とす
る合成重合体とは，上述のポリウレタン樹脂を５０〜１
００％含む合成重合体をいい，その他の合成重合体とし
て，例えば，アクリロニトリル，アクリルアミド，酢酸
ビニル，塩化ビニル，スチレン等からなる高分子や，ポ
リブタジエン，ポリアミノ酸などを５０％未満の範囲で
含まれていてもよく，その形態は共重合体でもブレンド
でもよい。これらの合成重合体は，フッ素やシリコン等
で変性された化合物も本発明で使用することができる。The synthetic polymer mainly composed of polyurethane resin in the present invention means the above-mentioned polyurethane resin in an amount of 50 to 1
A synthetic polymer containing 00%, and other synthetic polymers include, for example, polymers consisting of acrylonitrile, acrylamide, vinyl acetate, vinyl chloride, styrene, etc., and polybutadiene, polyamino acid, etc. in a range of less than 50%. The form may be a copolymer or a blend. As for these synthetic polymers, compounds modified with fluorine, silicon or the like can also be used in the present invention.
【００１６】本発明でいう“および／または”なる語句
は，双方のうちの一方または両方を意味するものとす
る。The term "and / or" as used in the present invention shall mean one or both of both.
【００１７】前述のアクリル樹脂および／またはポリウ
レタン樹脂を主体とする合成重合体の溶媒としては，メ
チルエチルケトン，酢酸エチル，トルエン，Ｎ，Ｎ−ジ
メチルホルムアミド，ジオキサン，イソプロピルアルコ
ール，水などを適宜用いればよいが，基布内部への樹脂
溶液の浸透性，加工コストからみて，揮発性の高いメチ
ルエチルケトン，酢酸エチル，トルエン，イソプロピル
アルコールなどを主溶媒として用いる方が有利である。As a solvent for the above-mentioned synthetic polymer mainly composed of acrylic resin and / or polyurethane resin, methyl ethyl ketone, ethyl acetate, toluene, N, N-dimethylformamide, dioxane, isopropyl alcohol, water or the like may be appropriately used. However, in view of the permeability of the resin solution into the inside of the base cloth and the processing cost, it is more advantageous to use highly volatile methyl ethyl ketone, ethyl acetate, toluene, isopropyl alcohol, etc. as the main solvent.
【００１８】本発明における第１工程の乾式コーテイン
グ加工では，乾燥樹脂膜重量が１０ｇ／m2以下, 好まし
くは５ｇ／m2以下になるように，基布のコーティング面
の凹部を主体にコーティングを行う。第１工程での樹脂
塗布量が多いと透湿度低下を招くので，８０００ｇ／
m2．24 hrs以上の透湿度が得られるように, 塗布量を極
力少なくする方が望ましい。In the dry coating process of the first step in the present invention, coating is performed mainly on the concave portion of the coating surface of the base fabric so that the dry resin film weight is 10 g / m 2 or less, preferably 5 g / m 2 or less. To do. If the amount of resin applied in the first step is large, the moisture permeability will decrease, so 8000 g /
m 2 . It is desirable to minimize the coating amount so that a moisture vapor transmission rate of 24 hrs or more can be obtained.
【００１９】コーテイングに際しては，ナイフコータ
ー，コンマコーター，リバースコーター等を用いて適宜
行えばよいが，樹脂塗布量からみてナイフコーターを用
いるのが最も適している。The coating may be appropriately performed using a knife coater, a comma coater, a reverse coater or the like, but the knife coater is most suitable in view of the resin coating amount.
【００２０】本発明では上述の第１工程での乾式コーテ
イングによる製膜後，その樹脂膜上に平均粒径が１μｍ
以下で，かつＮ，Ｎ−ジメチルホルムアミドの吸着量が
２00ミリリットル／１00ｇ以上の無機微粉末を１重量％
以上含有させたポリウレタン樹脂主体の合成重合体溶液
を塗布し，湿式製膜する第２工程の製膜を行う。In the present invention, after the film formation by the dry coating in the above-mentioned first step, the average particle size is 1 μm on the resin film.
1% by weight of an inorganic fine powder having an adsorption amount of N, N-dimethylformamide of 200 ml / 100 g or more
The synthetic polymer solution mainly composed of the polyurethane resin contained above is applied, and the film is formed in the second step of wet film formation.
【００２１】ポリウレタン樹脂主体の合成重合体溶液
は，前述の第１工程で用いたものと同一組成のものを用
いることができるが，主溶媒としては，Ｎ，Ｎ−ジメチ
ルホルムアミド等のような極性有機溶媒を使用するとよ
い。本発明では，このポリウレタン樹脂主体の合成重合
体溶液に，平均粒径が１μｍ以下で，かつ，Ｎ，Ｎ−ジ
メチルホルムアミドの吸着量が２００ミリリットル／１
００ｇ以上の無機微粉末を，合成重合体に対して１重量
％以上含有せしめて用いる。The polyurethane polymer-based synthetic polymer solution may have the same composition as that used in the first step, but the main solvent is a polar solvent such as N, N-dimethylformamide. It is recommended to use an organic solvent. In the present invention, this polyurethane resin-based synthetic polymer solution has an average particle size of 1 μm or less and an adsorption amount of N, N-dimethylformamide of 200 ml / 1.
An inorganic fine powder of 00 g or more is used by being contained in an amount of 1% by weight or more based on the synthetic polymer.
【００２２】この無機微粉末は，上記性能を有する無機
物であればいずれでも使用できる。無機物を微粉化する
には公知の方法を用いればよい。特に，ハロゲン化金属
の気相酸化法あるいは燃焼加水分解法，電弧法等の乾式
法によって得られる金属酸化物の微粉末がよく，中でも
上記方法により製造される無機微粉末として，二酸化ケ
イ素微粉末が安価でかつ多量に生産されているのでこれ
を利用するとよい。As the inorganic fine powder, any inorganic substance having the above-mentioned properties can be used. A known method may be used for pulverizing the inorganic material. In particular, fine powders of metal oxides obtained by a vapor phase oxidation method of a metal halide, a combustion hydrolysis method, an electric arc method or the like are preferable. Among them, as the inorganic fine powders produced by the above method, silicon dioxide fine powders are preferable. Is cheap and is produced in large quantities, so it is good to use it.
【００２３】これらの方法により得られた微粉末は，一
般的に粒径が0.０５μｍ以下であると同時に，非常に多
いＮ，Ｎ−ジメチルホルムアミド吸着量を示し，合成重
合体樹脂溶液中に添加せしめる無機微粉末として好適で
ある。さらに該微粉末の表面を疎水性に改質したものを
用いれば，コーティング膜の耐漏水性向上の面からみ
て，より一層好適である。The fine powders obtained by these methods generally have a particle size of 0.05 μm or less and, at the same time, show a very large amount of N, N-dimethylformamide adsorbed, and are dispersed in a synthetic polymer resin solution. It is suitable as an inorganic fine powder to be added. Further, if the surface of the fine powder is modified to be hydrophobic, it is more preferable from the viewpoint of improving the water leakage resistance of the coating film.
【００２４】上述のＮ，Ｎ−ジメチルホルムアミド吸着
量とは，無機微粉末５ｇをガラス平板上に置き，Ｎ，Ｎ
−ジメチルホルムアミドを１滴滴下するごとにステンレ
ス製のへらを用いて練り合わせる作業を繰り返し，Ｎ，
Ｎ−ジメチルホルムアミドの１滴で急激に軟らかくなる
直前の吸着量を意味している。その測定方法はＪＩＳＫ
−５１０１の吸油量測定法に準じて行うが，その際煮あ
まに油の代わりにＮ，Ｎ−ジメチルホルムアミドを用い
て行い，無機微粉末１００ｇ当りのＮ，Ｎ−ジメチルホ
ルムアミドの吸着量（単位：ミリリットル）で表わす。The above-mentioned amount of N, N-dimethylformamide adsorbed means that 5 g of inorganic fine powder is placed on a glass plate and N, N
-Every time one drop of dimethylformamide is dropped, the work of kneading with a spatula made of stainless steel is repeated,
This means the amount of adsorption of one drop of N-dimethylformamide immediately before it suddenly becomes soft. The measuring method is JISK
According to the oil absorption measuring method of -5101, but using N, N-dimethylformamide instead of oil in the boiling linseed, and the adsorption amount of N, N-dimethylformamide per 100 g of inorganic fine powder (unit: : Milliliter).
【００２５】本発明で用いる無機微粉末は，その平均粒
径が１μｍ以下で，かつＮ，Ｎ−ジメチルホルムアミド
吸着量が２００ミリリットル／１００ｇ以上であること
が必要であり，無機微粉末の平均粒径が0.１μｍ以下
で，かつ，Ｎ，Ｎ−ジメチルホルムアミドの吸着量が３
００ミリリットル／１００ｇ以上のものであれば，本発
明の効果の点でより一層好ましい。平均粒径が１μｍを
超えると，得られるコーティング膜の微細孔の孔径が大
きくなり過ぎ，防水性能を低下させるので好ましくな
く，また，Ｎ，Ｎ−ジメチルホルムアミドの吸着量が２
００ミリリットル／１００ｇ未満では，コーティング膜
の微細孔の数が少なくなり，透湿性能があまり向上しな
いので好ましくない。The inorganic fine powder used in the present invention is required to have an average particle size of 1 μm or less and an N, N-dimethylformamide adsorption amount of 200 ml / 100 g or more. The diameter is 0.1 μm or less, and the adsorption amount of N, N-dimethylformamide is 3
The amount of 100 ml / 100 g or more is more preferable in terms of the effect of the present invention. When the average particle size exceeds 1 μm, the pore size of the fine pores of the obtained coating film becomes too large, which lowers the waterproof performance, which is not preferable, and the adsorption amount of N, N-dimethylformamide is 2
When it is less than 100 ml / 100 g, the number of fine pores in the coating film is small and the moisture permeability is not so improved, which is not preferable.
【００２６】本発明で用いる無機微粉末の量は，ポリウ
レタン樹脂主体の合成重合体からなる樹脂層に対し，実
質的に均一に１重量％以上含有していることが必要であ
り，さらに好ましくは３重量％以上含有している方がよ
い。１重量％未満では，得られるコーティング膜の微細
孔の数が少なくなり過ぎて，透湿性能があまり向上しな
い。The amount of the inorganic fine powder used in the present invention should be substantially uniformly 1% by weight or more based on the resin layer composed of the synthetic polymer mainly composed of polyurethane resin, and more preferably. It is better to contain 3% by weight or more. If it is less than 1% by weight, the number of fine pores of the obtained coating film is too small, and the moisture permeability is not improved so much.
【００２７】また，無機微粉末は必ずしも高純度なもの
である必要はなく，不純物として他の無機物質，例え
ば，顔料，充填剤等が含有されていても何ら差し支えな
い。The inorganic fine powder does not necessarily have to be highly pure, and may contain other inorganic substances such as pigments and fillers as impurities.
【００２８】第２工程のコーティングに際しては，ナイ
フコーター，コンマコーター，リバースコーター等を適
宜使用し，乾燥樹脂膜が１０〜５０ｇ／m2になるように
塗布量を調節してコーテイングを行い，続いて０〜３０
℃の水中に0.５〜１０分間浸漬して樹脂分の湿式凝固を
行う。以下，４０〜６０℃の温水中で５〜１５分間の洗
浄後，通常の方法で乾燥し樹脂被膜を形成する。In the coating in the second step, a knife coater, a comma coater, a reverse coater or the like is appropriately used, coating is performed by adjusting the coating amount so that the dry resin film is 10 to 50 g / m 2. 0-30
Wet solidification of the resin component is carried out by immersing in 0.5 ° C. water for 0.5 to 10 minutes. Thereafter, after washing in warm water of 40 to 60 ° C. for 5 to 15 minutes, it is dried by a usual method to form a resin film.
【００２９】本発明では，第１工程のコーティングの
際，樹脂層と繊維布帛間の耐剥離性を向上させる目的
で，また，第２工程のコーティングの際，樹脂層と樹脂
層間の耐剥離性を向上させる目的で，樹脂溶液に樹脂や
繊維布帛との親和性の高い化合物を併用してもよく，そ
の化合物としては，イソシアネート化合物を併用すると
よい。イソシアネート化合物としては，2,４−トリレン
ジイソシアネート，ジフェニルメタンジイソシアネー
ト，イソフォロンジイソシアネート，ヘキサメチレンジ
イソシアネートまたはこれらのジイソシアネート類３モ
ルと活性水素を含有する化合物（例えば，トリメチロー
ルプロパン，グリセリン等）１モルとの付加反応によっ
て得られるトリイソシアネート類が使用できる。上記の
イソシアネート類は，イソシアネート基が遊離した形の
ものであっても，あるいはフェノール，メチルエチルケ
トオキシム等を付加させることにより安定させ，その後
の熱処理によりブロックを解離させる形のものであって
も，いずれでも使用でき，作業性や用途等により適宜使
い分ければよい。In the present invention, for the purpose of improving the peeling resistance between the resin layer and the fiber cloth during the coating in the first step, and for the peeling resistance between the resin layer and the resin layer during the coating in the second step. For the purpose of improving the resin composition, a compound having a high affinity with the resin or the fiber cloth may be used together with the resin solution, and an isocyanate compound may be used together as the compound. As the isocyanate compound, 2,4-tolylene diisocyanate, diphenylmethane diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate or 3 mol of these diisocyanates and 1 mol of a compound containing active hydrogen (eg, trimethylolpropane, glycerin, etc.) The triisocyanates obtained by the addition reaction of can be used. The above isocyanates may be in a form in which the isocyanate group is free, or in a form in which the block is dissociated by the subsequent heat treatment after being stabilized by adding phenol, methylethylketoxime, or the like. However, it can be used, and it may be properly used depending on workability and purpose.
【００３０】イソシアネート化合物を使用する際の使用
量としては，ポリウレタン樹脂主体の合成重合体に対し
て0.１〜１０重量％の割合で使用することが望ましい。
使用量が0.１％未満であれば，布帛に対する樹脂層の接
着力が低く，また，１０％を超えると，風合が硬化する
傾向が認められるようになるので好ましくない。The isocyanate compound is preferably used in an amount of 0.1 to 10% by weight based on the synthetic polymer mainly composed of polyurethane resin.
If the amount used is less than 0.1%, the adhesive force of the resin layer to the fabric is low, and if it exceeds 10%, the texture tends to harden, which is not preferable.
【００３１】本発明において，防水性をさらに向上させ
る目的で，第２工程における湿式コーティング後にコー
ティング布帛に撥水処理を行ってもよい。撥水処理に際
しては，前述のような一般に実施されている公知の撥水
処理方法を採用すればよい。また，さらに防水性能を向
上させたいときは，本発明の湿式コーティング層の上に
乾燥膜厚が0.５〜２μｍ程度の無孔のポリウレタン樹脂
層等を形成させればよい。湿式コーティング層が高耐水
圧を有しているため，薄膜でも防水性能が相乗的に向上
し，かつ透湿性能の低下も少ない。In the present invention, for the purpose of further improving waterproofness, the coated cloth may be subjected to a water repellent treatment after the wet coating in the second step. For the water repellent treatment, the well-known water repellent treatment method that is generally carried out as described above may be adopted. In order to further improve the waterproof performance, a non-porous polyurethane resin layer having a dry film thickness of about 0.5 to 2 μm may be formed on the wet coating layer of the present invention. Since the wet coating layer has high water pressure resistance, the waterproof performance is synergistically improved even with a thin film, and the moisture permeability is not significantly reduced.
【００３２】[0032]
【作 用】本発明方法のごとく，第１工程で樹脂液の乾
式コーティングを行うと，乾式コーティングは樹脂液の
コーティングをコントロールし易いので，コーティング
に際して基布コーティング面の凹部を主体に極力薄くコ
ーティングを行うことができ，樹脂液が基布の裏面まで
侵入することがなく，しかも，基布内部への浸透も少な
くなり，基布表面の外観が非常に良好になる。このよう
な状態で，第２工程の樹脂液の湿式コーティングを行う
と，樹脂膜は第１工程で形成された外観の良好な樹脂膜
上に形成されるので，非常に薄く均一な樹脂膜を形成す
ることができる。そして第２工程において，平均粒径が
１μｍ以下で，かつ，Ｎ，Ｎ−ジメチルホルムアミドの
吸着量が２００ミリリットル／１００ｇ以上の無機微粉
末を均一に分散させたポリウレタン樹脂主体の合成重合
体溶液を布帛にコーティングして湿式凝固を行うと，凝
固液である水と樹脂溶媒であるＮ，Ｎ−ジメチルホルム
アミドが混和し，樹脂液から溶媒が速やかに離脱してい
くことにより樹脂が凝固するが，その際，平均粒径が１
μｍ以下で，かつＮ，Ｎ−ジメチルホルムアミドの吸着
量が２００ミリリットル／１００ｇ以上の無機微粉末が
該樹脂溶液中に均一に分散していると，無機微粉末の表
面は他の部分に比べて樹脂溶液中におけるＮ，Ｎ−ジメ
チルホルムアミドの濃度が高く，言い換えれば，ポリウ
レタン樹脂主体の合成重合体の濃度が低い状態にあり，
このために湿式凝固過程においては，凝固液である水が
まず無機微粉末表面のＮ，Ｎ−ジメチルホルムアミドと
置き替わり，無機微粉末の周囲で速やかに凝固が始ま
り，その後に樹脂全体が凝固するので，結果的に凝固速
度が速くなり，ポリウレタン樹脂特有のハニカム構造の
他に，１μｍ以下の微細孔を無数に有する非常にポーラ
スな形態となる。この形成された微細孔の微細性によ
り，優れた防水性能が発揮されるとともに，無数に存在
する微細な有孔により，高透湿性能が発揮されるように
なる。[Operation] When the dry coating of the resin liquid is performed in the first step as in the method of the present invention, the dry coating is easy to control the coating of the resin liquid. The resin liquid does not enter the back surface of the base cloth, and the penetration into the inside of the base cloth is reduced, so that the appearance of the base cloth surface becomes very good. When the wet coating of the resin liquid in the second step is performed in such a state, the resin film is formed on the resin film having a good appearance formed in the first step, so that a very thin and uniform resin film is formed. Can be formed. Then, in the second step, a synthetic polymer solution mainly composed of a polyurethane resin, in which an inorganic fine powder having an average particle size of 1 μm or less and an adsorption amount of N, N-dimethylformamide of 200 ml / 100 g or more is uniformly dispersed, is prepared. When the cloth is coated and wet coagulated, water as a coagulating liquid and N, N-dimethylformamide as a resin solvent are mixed, and the resin is coagulated due to the rapid separation of the solvent from the resin liquid. At that time, the average particle size is 1
If the inorganic fine powder having a particle size of less than or equal to μm and an adsorption amount of N, N-dimethylformamide of 200 ml / 100 g or more is uniformly dispersed in the resin solution, the surface of the inorganic fine powder is compared with other parts. The concentration of N, N-dimethylformamide in the resin solution is high, in other words, the concentration of the synthetic polymer mainly composed of polyurethane resin is low,
For this reason, in the wet coagulation process, water as a coagulating liquid first replaces N, N-dimethylformamide on the surface of the inorganic fine powder, solidification rapidly starts around the inorganic fine powder, and then the entire resin solidifies. Therefore, as a result, the solidification rate becomes faster, and in addition to the honeycomb structure peculiar to polyurethane resin, it becomes a very porous form having countless fine pores of 1 μm or less. Due to the fineness of the formed fine pores, excellent waterproof performance is exhibited, and due to the innumerable fine pores, high moisture permeability is exhibited.
【００３３】本発明では無数に形成された微細な有孔に
より透湿性能が向上しているので，高透湿防水性布帛に
特有の，着用時に圧力が加わったとき問題が発生しやす
い漏水性に対しても非常に有効である。さらに，本発明
の無機微粉末は，着用側の樹脂層の全体に均一に存在し
ているので，樹脂層表面はポリウレタン樹脂特有のぬめ
り感を消し，ドライタッチにするとともに，着用側の樹
脂層全体の耐摩耗性と樹脂膜強度が向上する。In the present invention, the moisture permeation performance is improved by the innumerable minute pores, so that the water leakage characteristic of the highly moisture-permeable waterproof fabric is likely to cause a problem when pressure is applied during wearing. Is also very effective against. Further, since the inorganic fine powder of the present invention is uniformly present in the entire resin layer on the wear side, the resin layer surface eliminates the slimy feeling peculiar to the polyurethane resin to give a dry touch, and the resin layer on the wear side. Overall wear resistance and resin film strength are improved.
【００３４】[0034]
【実施例】以下，実施例により本発明をさらに具体的に
説明するが，実施例におけるコーティング布帛の性能の
測定は，次の方法で行った。 （１）耐水圧 ： ＪＩＳ Ｌ−１０９２（高水圧法） （２）透湿度 ： ＪＩＳ Ｌ−１０９９（Ａ−１法） （３）樹脂洩れ性 ： 基布表面への樹脂洩れ状況を肉
眼で観察した。 （４）漏水性 ： ブンデスマン法（ＪＩＳ Ｌ−１０
９２の参考試験法）に準じて，３６０分後の漏水量を測
定し，さらに，水の浸透による樹脂皮膜面の状況を肉眼
で観察した。 （５）摩耗強力 ：ＪＩＳ Ｌ−１０８４（Ａ−１法） （６）剥離強度 ：コーティング面にホットメルトテー
プを経方向に接着して，ＪＩＳ Ｌ−１０８９法に準じ
て測定した。EXAMPLES The present invention will be described in more detail with reference to the following examples. The performance of the coated fabrics in the examples was measured by the following method. (1) Water pressure resistance: JIS L-1092 (high water pressure method) (2) Moisture vapor transmission rate: JIS L-1099 (A-1 method) (3) Resin leakage: Visual observation of resin leakage to the base fabric surface did. (4) Water leakage: Bundesmann method (JIS L-10
92 reference test method), the amount of water leakage after 360 minutes was measured, and the state of the resin film surface due to water penetration was visually observed. (5) Abrasion strength: JIS L-1084 (method A-1) (6) Peel strength: A hot melt tape was adhered to the coating surface in the longitudinal direction, and the strength was measured according to JIS L-1089 method.
【００３５】実施例 １ 経糸，緯糸の双方にナイロンハイマルチフィラメント７
０デニール／６８フィラメントを用いた，経糸密度１１
０本／インチ，緯糸密度８０本／インチの平織物を製織
して，通常の方法で精練および染色（三菱化成株式会社
製，酸性染料のDiacid Light Yellow ２ＧＰ １％owf)
を行った後，フッ素系撥水剤エマルジョンのアサヒガー
ド７１０（旭硝子株式会社製）３％水分散液でパディン
グ（絞り率４０％）して乾燥後，１６０℃で１分間の熱
処理を行った。次に，鏡面ロールをもつカレンダー加工
機を用いて，温度１７０℃，圧力３０kg／cm2 ，速度３
０ｍ／分の条件でカレンダー加工を行い，コーティング
用の基布を得た。Example 1 Nylon high multifilament 7 for both warp and weft
Warp density 11 using 0 denier / 68 filament
Weaving a plain weave with 0 yarns / inch and weft density of 80 yarns / inch, and scouring and dyeing in the usual way (Diacid Light Yellow 2GP 1% owf, acid dye manufactured by Mitsubishi Kasei Co., Ltd.)
After that, the product was padded with a 3% aqueous dispersion of Asahi Guard 710 (made by Asahi Glass Co., Ltd.) of a fluorine-based water repellent emulsion (squeeze ratio: 40%), dried, and then heat-treated at 160 ° C. for 1 minute. Next, using a calendering machine with a mirror surface roll, temperature 170 ° C, pressure 30 kg / cm 2 , speed 3
Calendar processing was performed under the condition of 0 m / min to obtain a base fabric for coating.
【００３６】ここで，まず第１工程として，下記処方１
に示す組成で固形分濃度１８％，粘度１１０００ｃｐ／
２５℃のポリウレタン樹脂溶液を，ナイフコータを用い
て上記基布のカレンダー面に塗布量１５ｇ／ｍ2(乾燥樹
脂膜重量2.７ｇ／m2）にて塗布した後，８０℃で３分間
の乾燥を行った。Here, as the first step, the following prescription 1
18% solids concentration, viscosity 11,000 cp /
A 25 ° C polyurethane resin solution was applied to the calender surface of the above base fabric using a knife coater at a coating amount of 15 g / m 2 (dry resin film weight 2.7 g / m 2 ) and then dried at 80 ° C for 3 minutes. I went.
【００３７】処方１ クリスコートＰ−１０２１Ｆ ６０部 （大日本インキ化学工業株式会社製，二液型アクリル樹
脂） クリスボン６８０７ ４０部 （大日本インキ化学工業株式会社製，二液型ウレタン樹
脂） クリスボンＣＬ−３ ２部 （大日本インキ化学工業株式会社製，イソシアネート化
合物） メチルエチルケトン １５部 トルエン １０部Prescription 1 Chriscoat P-1021F 60 parts (Dainippon Ink and Chemicals Incorporated, two-component acrylic resin) Crisbon 6807 40 parts (Dainippon Ink and Chemicals Incorporated, two-component urethane resin) Crisbon CL -3 2 parts (manufactured by Dainippon Ink and Chemicals, Inc., isocyanate compound) Methyl ethyl ketone 15 parts Toluene 10 parts
【００３８】次に，第２工程として，上記塗布面に下記
処方２に示す組成で固形分濃度２４％，粘度１５０００
ｃｐ／２５℃のポリウレタン樹脂溶液を，ナイフオーバ
ーロールコータを用いて，塗布量８０ｇ／ｍ2(乾燥樹脂
膜重量19.2ｇ／m2）にて塗布した後，直ちに１５℃の水
中に６０秒間浸漬して樹脂分を凝固させ，続いて５０℃
の温水中で１０分間の洗浄を行い，乾燥し，本発明の透
湿防水性コーテイング布帛を得た。Next, in the second step, the composition having the composition shown in the following Formulation 2 was used, and the solid content concentration was 24% and the viscosity was 15,000.
A polyurethane resin solution of cp / 25 ° C was applied at a coating amount of 80 g / m 2 (dry resin film weight of 19.2 g / m 2 ) using a knife over roll coater and then immediately immersed in water at 15 ° C for 60 seconds. To solidify the resin component, then 50 ℃
Was washed in warm water for 10 minutes and dried to obtain the moisture-permeable and waterproof coating fabric of the present invention.
【００３９】処方２ ラックスキン１７４０−２９Ｂ １００部 （セイコ−化成株式会社製，エステル型ポリウレタン樹
脂） レザミンＸ−１００ １部 （大日精化工業株式会社製，イソシアネート化合物） Ｎ，Ｎ−ジメチルホルムアミド ３０部 アエロジルＲ−９７４ ３部 （日本アエロジル株式会社製，平均粒径0.０１２μｍ，
Ｎ，Ｎ−ジメチルホルムアミド吸着量３５０ミリリット
ル／１００ｇの疎水性二酸化ケイ素微粉末）Formulation 2 Laxkin 1740-29B 100 parts (Seiko Chemical Co., Ltd., ester type polyurethane resin) Resamine X-100 1 part (Dainichi Seika Chemicals Co., Ltd., isocyanate compound) N, N-dimethylformamide 30 Part Aerosil R-974 3 parts (manufactured by Nippon Aerosil Co., Ltd., average particle size 0.012 μm,
N, N-dimethylformamide adsorption amount 350 ml / 100 g of hydrophobic silicon dioxide fine powder)
【００４０】本発明との比較のため，本実施例において
処方２のアエロジルＲ−９７４に代えて，クリスタライ
トＶＸ−Ｓ２（龍森株式会社製，平均粒径５μｍ，Ｎ，
Ｎ−ジメチルホルムアミド吸着量が３８ミリリットル／
１００ｇの二酸化ケイ素微粉末）を同量使用するほか
は，本実施例とまったく同一の方法により比較用の透湿
防水性コーティング布帛（比較例１とする。）を得た。For comparison with the present invention, in this example, instead of Aerosil R-974 of the formulation 2, Crystallite VX-S2 (manufactured by Tatsumori Co., average particle size 5 μm, N,
N-dimethylformamide adsorption capacity is 38 ml /
A moisture-permeable waterproof coating fabric for comparison (referred to as Comparative Example 1) was obtained by the same method as in this example except that the same amount of 100 g of silicon dioxide fine powder was used.
【００４１】また，本発明との比較のため，本実施例に
おいて，処方２からアエロジルＲ−９７４を省くほか
は，本実施例とまったく同一の方法により，比較用の透
湿防水性コーティング布帛（比較例２とする。）を得
た。For comparison with the present invention, in the present Example, the moisture-permeable waterproof coating fabric for comparison (for comparison) was prepared in the same manner as in the present Example except that Aerosil R-974 was omitted from Formulation 2. Comparative Example 2) was obtained.
【００４２】さらに，本発明との比較のため，本実施例
において第１工程を省き，上記基布のカレンダー面に下
記処方２の樹脂液を塗布量９０ｇ／ｍ2(乾燥樹脂膜重量
21.6ｇ／m2）にて１回塗布するほかは，本実施例とまっ
たく同一の方法により比較用のコーティング布帛（比較
例３とする。）を得た。Further, for comparison with the present invention, the first step was omitted in this example, and a resin solution of the following formulation 2 was applied to the calender surface of the above base cloth at a coating amount of 90 g / m 2 (dry resin film weight).
A coated fabric for comparison (referred to as Comparative Example 3) was obtained by the same method as in this example except that the coating was applied once at 21.6 g / m 2 ).
【００４３】本発明および比較用のコーティング布帛の
性能を測定，評価し，その結果を合わせて表１に示し
た。The performances of the present invention and the comparative coated fabrics were measured and evaluated, and the results are shown in Table 1 together.
【００４４】[0044]
【表１】 [Table 1]
【００４５】表１より明らかなように，本発明方法で製
造した透湿防水性コーティング布帛は，基布表面への樹
脂洩れがなく，優れた耐水圧と透湿度を有するととも
に，漏水性，耐剥離性，耐摩耗性も良好であることがわ
かる。As is clear from Table 1, the moisture-permeable and waterproof coating fabric produced by the method of the present invention has no resin leakage onto the surface of the base fabric, has excellent water pressure resistance and moisture permeability, and has water leakage and resistance. It can be seen that the peelability and wear resistance are also good.
【００４６】実施例 ２ 経糸，緯糸の双方にナイロンフィラメント２１０デニー
ル／３６フィラメントを用いた経糸密度６５本／イン
チ，緯糸密度５０本／インチの平織物を製織し，以下，
前記実施例１と同一の方法によりコーティング用の基布
を得た。Example 2 A plain woven fabric having a warp density of 65 yarns / inch and a weft yarn density of 50 yarns / inch, in which nylon filament 210 denier / 36 filaments was used for both the warp yarn and the weft yarn, was woven.
A base fabric for coating was obtained by the same method as in Example 1.
【００４７】ここで，まず第１工程として，下記処方３
に示す組成で固形分濃度２０％，粘度１００００ｃｐ／
２５℃のポリウレタン樹脂溶液を，ナイフコータを用い
て上記基布のカレンダー面に塗布量１５ｇ／ｍ2(乾燥樹
脂膜重量3.０ｇ／m2）にて塗布した後，８０℃で３分間
の乾燥を行った。Here, as the first step, the following prescription 3
In the composition shown in, the solid content concentration is 20%, the viscosity is 10,000 cp /
The polyurethane resin solution at 25 ° C was applied to the calender surface of the above base cloth at a coating amount of 15 g / m 2 (dry resin film weight 3.0 g / m 2 ) using a knife coater, and then dried at 80 ° C for 3 minutes. I went.
【００４８】処方３ ハイムレンＮＰＵ−５ １００部 （大日精化工業株式会社製，一液型ウレタン樹脂） イソプロピルアルコール １１部 トルエン １１部Formulation 3 Heimren NPU-5 100 parts (Dainichi Seika Kogyo Co., Ltd., one-component urethane resin) Isopropyl alcohol 11 parts Toluene 11 parts
【００４９】次に第２工程として，前記実施例１の処方
２において，アエロジルＲ−９７４に代えてアルミナＡ
ＫＰ−Ｇ０１５（住友化学工業株式会社製，平均粒径0.
０３μｍ，Ｎ，Ｎ−ジメチルホルムアミド吸着量３１０
ミリリットル／１００ｇの疎水性三酸化二アルミニウム
微粉末）を同量使用するほかは，実施例１の第２工程と
全く同一の方法により，本発明の透湿防水性コーティン
グ布帛を製造した。Next, in the second step, in the formulation 2 of Example 1, alumina A was used in place of Aerosil R-974.
KP-G015 (Sumitomo Chemical Co., Ltd., average particle size 0.
03 μm, N, N-dimethylformamide adsorption amount 310
The moisture-permeable waterproof coating fabric of the present invention was produced by the same method as in the second step of Example 1 except that the same amount of milliliter / 100 g of hydrophobic dialuminum trioxide fine powder) was used.
【００５０】本発明との比較のため，本実施例において
第２工程のコーティング樹脂液処方からアルミナＡＫＰ
−Ｇ０１５を省くほかは，本実施例とまったく同一の方
法により比較用のコーティング布帛（比較例４とす
る。）を得た。For comparison with the present invention, the coating resin liquid formulation of the second step in the present example was changed to alumina AKP.
A coated fabric for comparison (referred to as Comparative Example 4) was obtained by the same method as in this example except that -G015 was omitted.
【００５１】また，本発明との比較のため，本実施例に
おいて第１工程を省き，上記基布のカレンダー面に第２
工程の樹脂液を塗布量９０ｇ／ｍ2(乾燥樹脂膜重量21.6
ｇ／m2）にて１回塗布するほかは，本実施例と全く同一
の方法により比較用の透湿防水性コーティング布帛（比
較例５とする。）を得た。For comparison with the present invention, the first step is omitted in this embodiment, and the second surface is formed on the calender surface of the base cloth.
90 g / m 2 of resin liquid applied in the process (dry resin film weight 21.6
g / m 2 ) was applied once, and a moisture-permeable waterproof coating fabric for comparison (referred to as Comparative Example 5) was obtained by the same method as in this Example.
【００５２】本発明および比較用のコーティング布帛の
性能を測定，評価し，その結果を合わせて表２に示し
た。The performances of the present invention and the coated fabric for comparison were measured and evaluated, and the results are shown together in Table 2.
【００５３】[0053]
【表２】 [Table 2]
【００５４】表２より明らかなように，本発明方法で製
造した透湿防水性コーティング布帛は，基布表面への樹
脂洩れがなく，優れた耐水圧と透湿度を有するととも
に，耐剥離性，耐摩耗性も良好であることがわかる。As is clear from Table 2, the moisture-permeable and waterproof coating fabric produced by the method of the present invention has no resin leakage to the surface of the base fabric, has excellent water pressure resistance and moisture permeability, and has peeling resistance, It can be seen that the wear resistance is also good.
【００５５】[0055]
【発明の効果】本発明方法によれば，コーティング時に
布帛の裏面への樹脂洩れを生じることなく，優れた耐水
圧と透湿度を有する透湿防水性コーティング布帛を製造
することができる。さらに，本発明のコーティング布帛
は，コーティング樹脂層の耐剥離性，耐摩耗性にも優れ
ている。本発明方法では，第１工程の乾式コーティング
加工で樹脂液を薄く塗布するので，基布表面へ樹脂洩れ
を生じやすい基布に対して有効であり，コーティング操
業上非常に有利である。本発明のコーティング布帛は，
その優れた性能から，特に雨衣，外衣等の衣料に適した
素材である。According to the method of the present invention, it is possible to produce a moisture-permeable waterproof coated cloth having excellent water pressure resistance and moisture permeability without causing resin leakage to the back surface of the cloth during coating. Further, the coated fabric of the present invention is excellent in peeling resistance and abrasion resistance of the coating resin layer. According to the method of the present invention, since the resin liquid is thinly applied by the dry coating process in the first step, it is effective for the base cloth which is likely to cause resin leakage to the surface of the base cloth, and is very advantageous in the coating operation. The coated fabric of the present invention is
Due to its excellent performance, it is a material particularly suitable for clothing such as rainwear and outerwear.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｄ０６Ｍ 101:16 Ｄ０６Ｍ 15/564 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location // D06M 101: 16 D06M 15/564
Claims (1)
たはポリウレタン樹脂を主体とする合成重合体溶液を塗
布し，乾式製膜する第１工程，該樹脂膜上に平均粒径が
１μｍ以下で，かつＮ，Ｎ−ジメチルホルムアミドの吸
着量が２００ミリリットル／１００ｇ以上の無機微粉末
を１重量％以上含有させたポリウレタン樹脂主体の合成
重合体溶液を塗布し，湿式製膜する第２工程よりなるこ
とを特徴とする透湿防水性コーティング布帛の製造方
法。1. A first step of applying a synthetic polymer solution mainly composed of an acrylic resin and / or a polyurethane resin onto a fiber cloth to form a dry film, the average particle diameter of which is 1 μm or less on the resin film, And the second step of applying a synthetic polymer solution mainly composed of a polyurethane resin containing 1% by weight or more of an inorganic fine powder having an N, N-dimethylformamide adsorption amount of 200 ml / 100 g or more and performing wet film formation A method for producing a moisture-permeable waterproof coating fabric, which is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8929693A JPH06280163A (en) | 1993-03-23 | 1993-03-23 | Production of moisture-permeable waterproof coating cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8929693A JPH06280163A (en) | 1993-03-23 | 1993-03-23 | Production of moisture-permeable waterproof coating cloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06280163A true JPH06280163A (en) | 1994-10-04 |
Family
ID=13966718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8929693A Pending JPH06280163A (en) | 1993-03-23 | 1993-03-23 | Production of moisture-permeable waterproof coating cloth |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06280163A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002129479A (en) * | 2000-10-16 | 2002-05-09 | Unitica Fibers Ltd | Method for producing moisture-permeating waterproof coated cloth having soft feeling |
| KR100403451B1 (en) * | 2001-01-13 | 2003-10-30 | 벤텍스 주식회사 | A dry typed non-porous waterproof and breathable fabric |
| JP2012007273A (en) * | 2010-06-28 | 2012-01-12 | Toyobo Specialties Trading Co Ltd | Coated stretch knitted fabric |
| JP2015172263A (en) * | 2014-03-12 | 2015-10-01 | ユニチカトレーディング株式会社 | Moisture-permeable water-proof fabric |
| WO2019115677A1 (en) * | 2017-12-14 | 2019-06-20 | Ewald Dörken Ag | Construction composite film |
-
1993
- 1993-03-23 JP JP8929693A patent/JPH06280163A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002129479A (en) * | 2000-10-16 | 2002-05-09 | Unitica Fibers Ltd | Method for producing moisture-permeating waterproof coated cloth having soft feeling |
| KR100403451B1 (en) * | 2001-01-13 | 2003-10-30 | 벤텍스 주식회사 | A dry typed non-porous waterproof and breathable fabric |
| JP2012007273A (en) * | 2010-06-28 | 2012-01-12 | Toyobo Specialties Trading Co Ltd | Coated stretch knitted fabric |
| JP2015172263A (en) * | 2014-03-12 | 2015-10-01 | ユニチカトレーディング株式会社 | Moisture-permeable water-proof fabric |
| WO2019115677A1 (en) * | 2017-12-14 | 2019-06-20 | Ewald Dörken Ag | Construction composite film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5204403A (en) | Moisture permeable and waterproof coated fabric and method for manufacturing same | |
| JP5230286B2 (en) | Moisture permeable waterproof fabric | |
| JPH07229070A (en) | Production of coated fabric having moisture transmission and waterproofness | |
| JP2615288B2 (en) | Moisture permeable waterproof coating fabric | |
| JP2004169233A (en) | Moisture-permeable and waterproof coating fabric and method for producing the same | |
| JPH06280163A (en) | Production of moisture-permeable waterproof coating cloth | |
| JPH06108365A (en) | Moisture-permeable water-proofing coating cloth and its production | |
| JPH0754277A (en) | Production of moisture-permeable water-proofing coated cloth | |
| JP3834123B2 (en) | Moisture permeable waterproof coating fabric and method for producing the same | |
| JPH0860558A (en) | Production of soft moisture-permeable waterproof fabric | |
| JPH06272168A (en) | Moisture-permeable and waterproof-coated fabric | |
| JPH06270343A (en) | Production of humidity permeable waterproof coating fabric | |
| JPH10251976A (en) | Moisture-permeable and waterproof coated fabric | |
| JP2951442B2 (en) | Coating fabric and method for producing the same | |
| JP2002129479A (en) | Method for producing moisture-permeating waterproof coated cloth having soft feeling | |
| JPH04146275A (en) | Moisture permeable waterproofing cloth having excellent waterproofing performance | |
| JPH09316784A (en) | Production of moisture-permeable waterproof fabric | |
| JPH08246339A (en) | Heat-insulating, moisture-permeating, and water-proofing web | |
| JPH06123077A (en) | Moisture-permeable water-proofing coated cloth | |
| JPH0748779A (en) | Coated cloth | |
| JPH06123068A (en) | Production of waterproofing coated fabric having water vapor permeability | |
| JPH07166479A (en) | Production of cloth having moisture-permeable water-proof coating | |
| JPH09187896A (en) | Manufacture of moisture permeable water prevention coating fabric | |
| JPH07292576A (en) | Moisture-permeable waterproof coating cloth having soft feeling | |
| JPH07216752A (en) | Production of moisture-permeable waterproof fabric |