JPS6354829B2 - - Google Patents
Info
- Publication number
- JPS6354829B2 JPS6354829B2 JP56088809A JP8880981A JPS6354829B2 JP S6354829 B2 JPS6354829 B2 JP S6354829B2 JP 56088809 A JP56088809 A JP 56088809A JP 8880981 A JP8880981 A JP 8880981A JP S6354829 B2 JPS6354829 B2 JP S6354829B2
- Authority
- JP
- Japan
- Prior art keywords
- isocyanate
- water
- coating
- parts
- waterproof
- 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.)
- Expired
Links
- 239000012948 isocyanate Substances 0.000 claims description 16
- 150000002513 isocyanates Chemical class 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 11
- 230000015271 coagulation Effects 0.000 claims description 9
- 238000005345 coagulation Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000003672 processing method Methods 0.000 claims description 7
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 2
- 239000002798 polar solvent Substances 0.000 claims description 2
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 description 16
- 239000000243 solution Substances 0.000 description 13
- 229920002635 polyurethane Polymers 0.000 description 12
- 239000004814 polyurethane Substances 0.000 description 12
- 230000035699 permeability Effects 0.000 description 11
- 229920000642 polymer Polymers 0.000 description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- 238000004132 cross linking Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- -1 aliphatic alcohols Chemical class 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000012770 industrial material Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000002940 repellent Effects 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 210000003660 reticulum Anatomy 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
本発明は透湿性、防水性コーテイング加工方法
に関し、更に詳しく述べるならば繊維基材に対し
て剥離強度に優れた透湿性、防水性コーテイング
を与えることのできる加工方法に関する。
従来より、繊維基材に天然ゴム、合成ゴム、ア
クリル樹脂あるいは、ポリウレタン樹脂などを被
覆した防水性布帛がレインコート、カツパ、スキ
ーウエアなどの防水衣料やテント、ターポリンそ
の他の産業資材に使用されている。しかしながら
これらの防水性布帛は透湿性に乏しく、レインコ
ート、カツパ、スキーウエア等の防水衣料は着用
時に発汗によるムレが発生し、非常に不快感を与
える。またテント等の産業資材では、実用上透湿
性がないため、その内部に水蒸気が凝結するなど
の欠点を有する。一方透湿性を強調した防水性布
帛としては高密度組織の布帛に単なる撥水加工を
施したものがあるが、その耐水圧は布帛の組織密
度によつて若干の違いがあるけれども、一般には
150mmH2Oの耐水性を得ることは困難である。
又、合成樹脂に各種の発泡剤、その他を添加併
用して該樹脂の多孔質膜を形成する加工方法が知
られているが、この加工方法では球形ないし楕円
形の気孔が生成し、しかも気孔径が巨大でかつ独
立気孔が大部分であるため十分な通気性、透湿性
が得難い欠点がある。更に、特公昭45−3299号に
は通気性および透湿性を付与する製造方法はポリ
ウレタン重合体の極性有機溶液中にイソシアネー
ト類を添加した溶液を塗工し、次に水溶液中に浸
漬してポリウレタン微多孔質皮膜を形成させる凝
固法が提案されている。しかし、この方法では溶
液の経時変化に対する粘度の安定性が悪く、塗工
ムラが出来やすく品質が不安定となる。又水溶液
中にイソシアネート類と水とが反応して水溶液中
に抽出され、本来の架橋効果が全くない基布との
接着強度が弱く、皮膜が剥離する。したがつて衣
料産業資材関係等の用途に対しては問題がある。
これらの欠点を解決するためにポリウレタン重
合体にイソシアネート類とフエノール類または非
イオン界面活性剤を添加してブロツクイソシアネ
ートの状態にして水浴中で凝固する方法が特開昭
55−80583号に報告されている。この加工方法で
は水溶液中でイソシアネート類と水とは反応しな
いが乾燥、熱処理工程において170℃以上の高温
熱処理をしなければ、ブロツクイソシヤネートが
解離しない。しかしながら、170℃以上の高温で
熱処理をするとウレタン重合体の変色、劣化の問
題が発生し、高温熱処理が実際の作業工程上不可
能である。このために上記のブロツクイソシヤネ
ートでは、140〜150℃の作業工程の熱処理条件で
解離せず、完全に架橋が行なわれないので基布と
皮膜の剥離強度の向上がみられない。
本発明は上記の欠点を改善した、優れた透湿
性、防水性を与えるコーテイング加工方法を提供
するものである。
本発明によれば即ち透湿性、防水性コーテイン
グ加工方法が提供されるものであつて、この方法
は有機極性溶媒中にポリウレタンエラストマー、
イソシアネート及びアルコールを溶解、混合して
塗工液とし、この塗工液を繊維基材に塗工しもし
くは含浸させ、次いでこれを凝固浴中に浸漬し、
その後これを水洗、乾燥及び熱処理することを特
徴とする。
即ち、ポリウレタン重合体溶液中にイソシアネ
ート類及びアルコール類、好ましくは脂肪族アル
コール類をそれぞれ所定量添加して調合した溶液
を基布上に塗工し、次に水溶液中に浸漬凝固し
て、多孔質の皮膜を形成し、乾燥、熱処理するこ
とにより、耐久性のあるすぐれた透湿性、防水性
を有し、かつ剥離強度の優れた皮膜を形成するコ
ーテイング加工方法である。
好ましくは、ポリウレタン重合体溶液中に添加
されるポリイソシアネート類としては、40℃以下
で安定なジイソシアネート類、トリイソシアネー
ト類などのイソシアネート基を2個以上有する化
合物が挙げられ、たとえば、2,4―又は2,6
―トリレンジイソシアネート、ジフエニルメタン
―4,4′―ジイソシアネート、1,4―ナフタレ
ンジイソシアネート、ヘキサメチレンジイソシア
ネート、イソホロンジイソシアネートなどのジイ
ソシアネート類およびこれらのジイソシアネート
類3モルと活性水素を有する化合物(たとえばト
リメチロールプロパン、グリセリンなど)1モル
との付加反応によつて得られるトリイソシアネー
ト類から任意に選択出来る。そしてこれらは1重
量部〜10重量部、好ましくは5重量部〜8重量部
の量で添加されるのがよい。脂肪族アルコール類
は、たとえば、メタノール、エタノール、プロパ
ノール、ブタノール、オクチルアルコールなどか
ら任意に選択使用することができ、これらは1重
量部〜10重量部、好ましくは、5重量部〜8重量
部の量で用いられるのがよい。これらを秤量混合
した溶液をナイフコーター、パイプコーター、リ
バースロールコーター等の塗工機を用いて基布上
に塗工し、次に水浴で浸漬凝固することにより、
直径5ミクロン以下の微細気孔のポリウレタン重
合体多孔質皮膜が形成される。次にこれを乾燥し
て120〜150℃の範囲内で3〜10分間、好ましくは
140〜150℃の範囲で5分〜7分間の熱処理をする
と、これにより、剥離強度の優れた透湿性、防水
性コーテイング布が得られるのである。
本発明について更に詳細にのべると、ポリウレ
タン重合体溶液中にイソシアネート類のイソシア
ネート基を遊離した形で浸漬凝固することはイソ
シアネート基と水とが容易に反応して凝固溶液中
に抽出され、架橋効果が全くなくなる。従つて水
と反応しないように最初にイソシアネート基を封
鎖すれば、イソシアネート基は水と反応しないた
めに水溶液中に容易に抽出しなくなり、そのため
架橋剤が残り架橋効果があらわれて、剥離強度の
優れた皮膜を形成することが出来るのである。し
かしながら熱処理によつてブロツクイソシアネー
トが解離しなければ、十分な架橋効果は生じな
い。本発明は上記の欠点を改善するものであつ
て、例えば、ポリウレタン重合体溶液中にイソシ
アネート類を1重量部〜10重量部と脂肪族アルコ
ール類を1重量部〜10重量部混合してブロツクイ
ソシアネートを作成した溶液を基布即ち編織物に
リバースロールコーター等を用いて塗工し、凝固
槽で10〜30℃の温度範囲で10〜20分間浸漬乾燥
し、次に温度100〜150℃で3〜5分間の熱処理を
することにより、剥離強度に優れた透湿性、防水
性コーテイング布帛が得られるのである。
以下、例によつて本発明を更に説明する。
実施例 1
ポリウレタン重合体CR8006HV(大日本インキ
化学工業(株))100部、ジメチルホルムアミド50部、
イソシアネートとしてコロネートし(日本ポリウ
レタン工業(株))5部及びイソプロピルアルコール
5部を混合した溶液を作成し、これをオーバーナ
イフロールコーターでナイロンタフタ(210本ク
ラス)に塗工し、凝固槽で温度20℃で10分間凝固
し、次いでこれを乾燥(150℃×1分)し、150℃
で3分間熱処理する。その後フツ素系撥水剤(ア
サヒガードAG710、旭ガラス(株))3%O.W.S.を
パツテイング熱処理する。その結果、表1に示す
如く剥離強度に優れた透湿性、防水性を有する布
帛が得られた。
The present invention relates to a method for processing a moisture-permeable, waterproof coating, and more specifically, to a processing method that can provide a moisture-permeable, waterproof coating with excellent peel strength to a fiber base material. Traditionally, waterproof fabrics made of fibers coated with natural rubber, synthetic rubber, acrylic resin, or polyurethane resin have been used for waterproof clothing such as raincoats, bonnets, and ski wear, as well as tents, tarpaulins, and other industrial materials. There is. However, these waterproof fabrics have poor moisture permeability, and waterproof clothing such as raincoats, jackets, and ski wear can become stuffy due to sweating when worn, causing extreme discomfort. In addition, industrial materials such as tents have drawbacks such as water vapor condensing inside them because they have no practical moisture permeability. On the other hand, waterproof fabrics that emphasize moisture permeability include fabrics with a high-density structure that are simply treated with water repellency, but the water pressure resistance varies slightly depending on the fabric's fabric density, but in general,
It is difficult to obtain water resistance of 150mmH 2 O. Furthermore, a processing method is known in which a porous membrane is formed from a synthetic resin by adding various foaming agents and others, but this processing method produces spherical or elliptical pores, and Since the pore size is large and most of the pores are independent, it has the disadvantage that it is difficult to obtain sufficient air permeability and moisture permeability. Furthermore, Japanese Patent Publication No. 45-3299 describes a manufacturing method for imparting air permeability and moisture permeability to a polyurethane polymer by applying a solution of isocyanates added to a polar organic solution of a polyurethane polymer, and then immersing it in an aqueous solution. A coagulation method that forms a microporous film has been proposed. However, with this method, the stability of the viscosity of the solution over time is poor, and coating unevenness is likely to occur, resulting in unstable quality. Also, isocyanates and water react with each other in the aqueous solution and are extracted into the aqueous solution, resulting in weak adhesive strength with the base fabric, which has no inherent crosslinking effect, and the film peels off. Therefore, there are problems when it comes to uses such as materials for the clothing industry. In order to solve these drawbacks, JP-A-Sho proposed a method in which isocyanates and phenols or nonionic surfactants are added to polyurethane polymers to form blocked isocyanates, which are coagulated in a water bath.
No. 55-80583. In this processing method, isocyanates and water do not react in an aqueous solution, but the blocked isocyanate does not dissociate unless high-temperature heat treatment of 170°C or higher is performed in the drying and heat treatment steps. However, heat treatment at a high temperature of 170°C or higher causes problems such as discoloration and deterioration of the urethane polymer, making high-temperature heat treatment impossible in practice. For this reason, the above-mentioned block isocyanate does not dissociate under the heat treatment conditions of the working process at 140 to 150° C., and is not completely crosslinked, so that no improvement in the peel strength between the base fabric and the coating is observed. The present invention provides a coating method that improves the above-mentioned drawbacks and provides excellent moisture permeability and waterproof properties. According to the present invention, a moisture-permeable and waterproof coating processing method is provided, which comprises: polyurethane elastomer in an organic polar solvent;
Isocyanate and alcohol are dissolved and mixed to form a coating liquid, this coating liquid is applied or impregnated onto a fiber base material, and then this is immersed in a coagulation bath,
It is then characterized by washing with water, drying, and heat treating. That is, a solution prepared by adding predetermined amounts of isocyanates and alcohols, preferably aliphatic alcohols, to a polyurethane polymer solution is applied onto a base fabric, and then immersed in an aqueous solution to solidify the porous material. This is a coating processing method that forms a durable film with excellent moisture permeability, waterproofness, and peel strength by forming a high-quality film, followed by drying and heat treatment. Preferably, the polyisocyanates added to the polyurethane polymer solution include compounds having two or more isocyanate groups, such as diisocyanates and triisocyanates, which are stable at 40°C or lower, such as 2,4- Or 2,6
- Diisocyanates such as tolylene diisocyanate, diphenylmethane-4,4'-diisocyanate, 1,4-naphthalene diisocyanate, hexamethylene diisocyanate, and isophorone diisocyanate, and compounds having 3 moles of these diisocyanates and active hydrogen (for example, trimethylolpropane, It can be arbitrarily selected from triisocyanates obtained by an addition reaction with 1 mole of glycerin, etc.). These are preferably added in an amount of 1 to 10 parts by weight, preferably 5 to 8 parts by weight. The aliphatic alcohol can be arbitrarily selected from, for example, methanol, ethanol, propanol, butanol, octyl alcohol, etc., and these can be used in an amount of 1 to 10 parts by weight, preferably 5 to 8 parts by weight. It is best used in quantity. A solution obtained by weighing and mixing these is coated onto the base fabric using a coating machine such as a knife coater, pipe coater, or reverse roll coater, and then immersed in a water bath for coagulation.
A polyurethane polymer porous film with micropores of 5 microns or less in diameter is formed. Next, dry this for 3 to 10 minutes within the range of 120 to 150°C, preferably
Heat treatment in the range of 140 to 150°C for 5 to 7 minutes yields a moisture permeable and waterproof coated fabric with excellent peel strength. To explain the present invention in more detail, immersion coagulation of isocyanate groups in a free form in a polyurethane polymer solution means that the isocyanate groups and water easily react with water and are extracted into the coagulation solution, resulting in a crosslinking effect. completely disappears. Therefore, if the isocyanate group is first blocked so that it does not react with water, the isocyanate group will not react with water and will not be easily extracted into an aqueous solution.Therefore, the crosslinking agent will remain and the crosslinking effect will appear, resulting in excellent peel strength. Therefore, it is possible to form a film with a high temperature. However, unless the blocked isocyanate is dissociated by heat treatment, a sufficient crosslinking effect will not occur. The present invention aims to improve the above-mentioned drawbacks. For example, by mixing 1 to 10 parts by weight of isocyanates and 1 to 10 parts by weight of aliphatic alcohols in a polyurethane polymer solution, blocked isocyanates can be prepared. The prepared solution is applied to a base fabric, i.e., a knitted fabric, using a reverse roll coater, etc., and immersed in a coagulation bath for 10 to 20 minutes at a temperature range of 10 to 30°C, and then dried at a temperature of 100 to 150°C for 3 By performing heat treatment for ~5 minutes, a moisture permeable and waterproof coated fabric with excellent peel strength can be obtained. The invention will now be further explained by way of examples. Example 1 100 parts of polyurethane polymer CR8006HV (Dainippon Ink & Chemicals Co., Ltd.), 50 parts of dimethylformamide,
A solution was prepared by mixing 5 parts of coronate (Nippon Polyurethane Industry Co., Ltd.) as an isocyanate and 5 parts of isopropyl alcohol, and this was coated on nylon taffeta (210 class) using an over-knife roll coater, and the temperature was lowered in a coagulation tank. Solidify at 20°C for 10 minutes, then dry (150°C x 1 minute) and heat at 150°C.
Heat-treat for 3 minutes. After that, a fluorine-based water repellent (Asahi Guard AG710, Asahi Glass Co., Ltd.) 3% OWS is applied and heat treated. As a result, as shown in Table 1, a fabric with excellent peel strength, moisture permeability, and waterproof properties was obtained.
【表】
尚、比較例はイソプロピルアルコールを用いな
かつた以外は上記と全く同じ操作を繰り返したも
のである。
実施例 2
ポリウレタン重合体CR8006HV(大日本インキ
化学工業(株))100部、ジメチルホルムアミド50部、
イソシアネートとしてコロネートし(日本ポリウ
レタン工業(株))5部及びメタノール5部を混合し
た溶液を作成し、オーバーナイフロールコーター
でナイロンタフタ(210本)に塗工し、凝固槽で
温度30℃で10分間凝固し、次いでこれを乾燥
(150℃×1分)し、140℃で5分間熱処理する。
その後フツ素系撥水剤(アサヒガードAG710旭
ガラス(株))3%(O.W.S)をパツテイング熱処理
する。その結果、表2に示す如く剥離強度の優れ
た透湿性、防水性を有する布帛が得られた。[Table] In the comparative example, the same operation as above was repeated except that isopropyl alcohol was not used. Example 2 100 parts of polyurethane polymer CR8006HV (Dainippon Ink & Chemicals Co., Ltd.), 50 parts of dimethylformamide,
A solution was prepared by mixing 5 parts of coronate (Nippon Polyurethane Industry Co., Ltd.) as an isocyanate and 5 parts of methanol, and it was coated on nylon taffeta (210 pieces) using an over-knife roll coater, and coated in a coagulation tank at a temperature of 30°C for 10 minutes. After coagulating for minutes, it is then dried (150°C x 1 minute) and heat treated at 140°C for 5 minutes.
After that, heat treatment is applied by applying a fluorine-based water repellent (Asahi Guard AG710 manufactured by Asahi Glass Co., Ltd.) 3% (OWS). As a result, as shown in Table 2, a fabric with excellent peel strength, moisture permeability, and waterproof properties was obtained.
【表】
比較例は、上記の操作においてメタノールを用
いなかつた場合である。[Table] A comparative example is a case where methanol was not used in the above operation.
Claims (1)
ー、イソシアネート及びアルコールを溶解、混合
して塗工液とし、この塗工液を繊維基材に塗工し
もしくは含浸させ、次いでこれを凝固浴中に浸漬
し、その後これを水洗、乾燥及び熱処理すること
を特徴とする透湿性、防水性コーテイング加工方
法。 2 イソシアネートとしてイソシアネート基を2
個以上有する化合物が用いられる特許請求の範囲
第1項記載の方法。 3 アルコールとして脂肪族アルコールが用いら
れる特許請求の範囲第1項記載の方法。[Scope of Claims] 1 A coating solution is obtained by dissolving and mixing a polyurethane elastomer, isocyanate, and alcohol in an organic polar solvent, and this coating solution is applied or impregnated onto a fiber base material, and then this is applied to a coagulation bath. A moisture-permeable and waterproof coating processing method characterized by immersing the coating in water, followed by washing, drying and heat treatment. 2 Isocyanate group as isocyanate
2. The method according to claim 1, wherein a compound having 1 or more is used. 3. The method according to claim 1, wherein an aliphatic alcohol is used as the alcohol.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8880981A JPS57205586A (en) | 1981-06-11 | 1981-06-11 | Moisture permeable and water-proof coating process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8880981A JPS57205586A (en) | 1981-06-11 | 1981-06-11 | Moisture permeable and water-proof coating process |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57205586A JPS57205586A (en) | 1982-12-16 |
JPS6354829B2 true JPS6354829B2 (en) | 1988-10-31 |
Family
ID=13953210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8880981A Granted JPS57205586A (en) | 1981-06-11 | 1981-06-11 | Moisture permeable and water-proof coating process |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57205586A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02125923A (en) * | 1988-10-31 | 1990-05-14 | Mazda Motor Corp | Exhaust turbo supercharger |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61138778A (en) * | 1984-12-07 | 1986-06-26 | Unitika Ltd | Breathable waterproofing cloth and its production |
JPS6278276A (en) * | 1985-09-25 | 1987-04-10 | 帝國産業株式会社 | Composite string like product |
US6203872B1 (en) | 1998-07-23 | 2001-03-20 | Akzo Nobel Nv | Waterproof and water vapour permeable lining |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5580583A (en) * | 1978-12-06 | 1980-06-17 | Daiichi Lace Kk | Production of coating cloth |
-
1981
- 1981-06-11 JP JP8880981A patent/JPS57205586A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5580583A (en) * | 1978-12-06 | 1980-06-17 | Daiichi Lace Kk | Production of coating cloth |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02125923A (en) * | 1988-10-31 | 1990-05-14 | Mazda Motor Corp | Exhaust turbo supercharger |
Also Published As
Publication number | Publication date |
---|---|
JPS57205586A (en) | 1982-12-16 |
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