JPH09228253A - Waterproof fabric and its production - Google Patents
Waterproof fabric and its productionInfo
- Publication number
- JPH09228253A JPH09228253A JP5083696A JP5083696A JPH09228253A JP H09228253 A JPH09228253 A JP H09228253A JP 5083696 A JP5083696 A JP 5083696A JP 5083696 A JP5083696 A JP 5083696A JP H09228253 A JPH09228253 A JP H09228253A
- Authority
- JP
- Japan
- Prior art keywords
- polyurethane resin
- hydrophilic polyurethane
- waterproof
- water
- fabric
- 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
- 239000004744 fabric Substances 0.000 title claims abstract description 69
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000009833 condensation Methods 0.000 claims abstract description 35
- 230000005494 condensation Effects 0.000 claims abstract description 35
- 239000012982 microporous membrane Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- 239000011259 mixed solution Substances 0.000 claims description 6
- 229920005862 polyol Polymers 0.000 claims description 6
- 150000003077 polyols Chemical class 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 229920001451 polypropylene glycol Polymers 0.000 claims description 4
- 239000011342 resin composition Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 abstract description 24
- 239000000463 material Substances 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 26
- 239000000243 solution Substances 0.000 description 24
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 11
- 230000002940 repellent Effects 0.000 description 10
- 239000005871 repellent Substances 0.000 description 10
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 230000001112 coagulating effect Effects 0.000 description 8
- 239000004677 Nylon Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 229920001778 nylon Polymers 0.000 description 7
- 239000011527 polyurethane coating Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000003431 cross linking reagent Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 239000012948 isocyanate Substances 0.000 description 5
- 150000002513 isocyanates Chemical class 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 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 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
- 239000003495 polar organic solvent Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000005056 polyisocyanate Substances 0.000 description 3
- 229920001228 polyisocyanate Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 239000011240 wet gel Substances 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 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
- 238000009685 knife-over-roll coating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000007763 reverse roll coating Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 238000010345 tape casting Methods 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
- 239000003021 water soluble solvent Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はスポーツ用衣類に好
適に使用される高透湿性、低結露性、及び高耐水圧を併
せ持つ防水加工布およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof cloth having high moisture permeability, low dew condensation property, and high water pressure resistance, which is preferably used for sports clothes and a method for producing the same.
【０００２】[0002]
【従来の技術】従来の透湿防水加工布は、主としてポリ
ウレタン樹脂を水に可溶な溶剤に溶解させてなるポリウ
レタン溶液を布帛にコーティングし、これを湿式ゲル化
させて製造されており、溶剤が水によって置換されると
きに布帛上に形成される多孔質のポリウレタン被膜が雨
やその他の水は通さないが、湿気（水蒸気）を通すとい
うものであった。かかる透湿防水加工布は、例えば特開
昭６０−４７９５４号公報に記載されている。しかしな
がら、従来の多孔質のポリウレタン被膜では、膜表面及
び多孔膜内に一度結露が発生し、物理的通路が封鎖され
ると水蒸気の移動は極端に低下し、より結露が促進され
るので快適性が非常に低下する問題があった。2. Description of the Related Art A conventional moisture-permeable and waterproof cloth is manufactured by coating a cloth with a polyurethane solution prepared by dissolving a polyurethane resin in a water-soluble solvent and then wet-geling the cloth. The porous polyurethane coating formed on the fabric when water is replaced by water does not allow rain or other water to pass, but allows moisture (water vapor) to pass. Such a moisture-permeable and waterproof cloth is described in, for example, JP-A-60-47954. However, with conventional porous polyurethane coatings, once dew condensation occurs on the membrane surface and inside the porous membrane, the movement of water vapor is extremely reduced when the physical passage is blocked, and dew condensation is further promoted, which is comfortable. There was a problem that it was very low.
【０００３】また、透湿防水加工布を得るのにポリウレ
タン樹脂として透湿性ポリウレタン樹脂を使用する方法
が特開平４−２０２８５７号公報で提案されている。こ
の方法により得られた透湿防水加工布は汗の水滴を吸収
することは出来るが、一旦水分を吸収すると容易に水分
を放出しないため表面がべとつく欠点があった。そこ
で、特開平４−２０２８５７号公報に記載の発明では、
この様な欠点を改良するために水に溶解せず水分を吸収
しても異常に膨潤しないレーヨンや絹などの天然繊維の
粉末を透湿性ポリウレタン樹脂に含有させることによ
り、適度な水分を吸収しても加工布の表面がべとつかな
いようにすることが提案されている。Further, Japanese Patent Laid-Open No. 4-202857 proposes a method of using a moisture permeable polyurethane resin as a polyurethane resin for obtaining a moisture permeable and waterproof cloth. The moisture-permeable and waterproof cloth obtained by this method can absorb water drops of sweat, but once it absorbs water, it does not easily release water, and thus has a drawback that the surface is sticky. Therefore, in the invention described in Japanese Patent Laid-Open No. 4-202857,
In order to improve such drawbacks, the moisture-permeable polyurethane resin contains a powder of natural fiber such as rayon or silk, which does not dissolve in water and does not swell abnormally even if it absorbs water. Even so, it has been proposed to prevent the surface of the work cloth from becoming sticky.
【０００４】しかしながら、かかる透湿防水加工布は、
天然繊維の粉末をいかに細かく粉砕して混合しても加工
布の樹脂塗布面にいろいろな問題を生ぜしめ、結局高耐
水圧を有する透湿防水加工布とはならない、という欠点
を有している。However, such a breathable waterproof cloth is
It has the drawback that no matter how finely pulverized and mixed the powder of natural fiber, various problems will occur on the resin-coated surface of the work cloth, and eventually it will not be a breathable waterproof cloth with high water pressure resistance. .
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上記のごと
き問題を解決し、高透湿性、高耐水圧に加えて低結露性
を併せ持つ新規な透湿防水加工布およびその製造方法を
提供しようとするものである。DISCLOSURE OF THE INVENTION The present invention solves the above problems and provides a novel moisture-permeable waterproof cloth having high moisture permeability, high water pressure resistance and low dew condensation, and a method for producing the same. It is what
【０００６】[0006]
【課題を解決するための手段】本発明者らの検討によれ
ば、本発明の課題は下記により達成され得ることが判明
した。According to the studies made by the present inventors, it was found that the objects of the present invention can be achieved by the following.
【０００７】［１］布帛の少なくとも片面に親水性ポリ
ウレタン樹脂を含むポリウレタン樹脂組成物から主とし
てなる微多孔質膜層を有し、耐水圧が３０００〜４００
００ｍｍＨ2 Ｏであり、透湿度 が６０００〜１２００
０ｇ／ｍ2 ・２４時間であり、かつ結露量が１０ｇ／ｍ
2 以下であることを特徴とする防水加工布帛。[1] A microporous membrane layer mainly composed of a polyurethane resin composition containing a hydrophilic polyurethane resin is provided on at least one surface of the cloth, and the water pressure resistance is 3000 to 400.
00 mmH 2 O and water vapor transmission rate of 6000 to 1200
0g / m 2 · 24 hours, and the amount of condensation is 10g / m
A waterproof fabric characterized by being 2 or less.
【０００８】［２］結露量が４ｇ／ｍ2 以下であること
を特徴とする上記［１］の防水加工布帛。[2] The waterproof fabric according to the above [1], which has a dew condensation amount of 4 g / m 2 or less.
【０００９】［３］親水性ポリウレタン樹脂のポリオー
ル成分の２０〜６０モル％がポリエチレングリコールお
よびポリプロピレングリコールのうち少なくともいずか
一方であることを特徴とする上記［１］もしくは［２］
の防水加工布帛。[3] The above-mentioned [1] or [2], wherein 20-60 mol% of the polyol component of the hydrophilic polyurethane resin is at least one of polyethylene glycol and polypropylene glycol.
Waterproof fabric.
【００１０】［４］微多孔質膜層の厚みが１５〜１５０
μｍであることを特徴とする上記［１］〜［３］のいず
れかに記載の防水加工布帛。[4] The thickness of the microporous membrane layer is 15 to 150.
The waterproof cloth according to any one of the above [1] to [3], which has a thickness of μm.
【００１１】［５」微多孔質膜層の空孔率が１０〜７５
％であることを特徴とする上記［１］〜［４］のいずれ
かに記載の防水加工布帛。[5] The porosity of the microporous membrane layer is 10 to 75.
%, The waterproof fabric according to any one of [1] to [4] above.
【００１２】「６］微多孔質膜層が親水性ポリウレタン
樹脂および非親水性ポリウレタン樹脂の混合により形成
されることを特徴とする上記［１］〜［５］のいずれか
に記載の防水加工布帛。[6] The waterproof cloth according to any one of the above [1] to [5], wherein the microporous membrane layer is formed by mixing a hydrophilic polyurethane resin and a non-hydrophilic polyurethane resin. .
【００１３】［７］親水性ポリウレタン樹脂と親水性ポ
リウレタン樹脂との混合比が１：３〜３：１であること
を特徴とする上記「６］の防水加工布帛。[7] The waterproof fabric according to the above [6], wherein the mixing ratio of the hydrophilic polyurethane resin and the hydrophilic polyurethane resin is 1: 3 to 3: 1.
【００１４】［８］布帛の少なくとも片面に親水性ポリ
ウレタン樹脂および非親水性ポリウレタン樹脂の混合溶
液を付与せしめて微多孔質膜層を形成することを特徴と
する防水加工布帛の製造方法。[8] A method for producing a waterproof cloth, which comprises applying a mixed solution of a hydrophilic polyurethane resin and a non-hydrophilic polyurethane resin to at least one surface of the cloth to form a microporous membrane layer.
【００１５】［９］親水性ポリウレタン樹脂および非親
水性ポリウレタン樹脂の混合溶液中の親水性ポリウレタ
ン樹脂と親水性ポリウレタン樹脂との混合比が１：３〜
３：１であることを特徴とする上記［８］の防水加工布
帛の製造方法。[9] The mixing ratio of the hydrophilic polyurethane resin and the hydrophilic polyurethane resin in the mixed solution of the hydrophilic polyurethane resin and the non-hydrophilic polyurethane resin is 1: 3 to.
The method for producing a waterproof fabric according to the above [8], which is 3: 1.
【００１６】すなわち、本発明者らは、鋭意研究した結
果、布帛の少なくとも片面に親水性ポリウレタン樹脂お
よび非親水性ポリウレタン樹脂の混合溶液を付与せしめ
て微多孔質膜層を形成することを特徴とする防水加工布
帛の製造方法により、布帛の少なくとも片面に親水性ポ
リウレタン樹脂を含むポリウレタン樹脂組成物から主と
してなる微多孔質膜層を有し、耐水圧が３０００〜４０
０００ｍｍＨ2 Ｏであり、透湿度が６０００〜１２００
０ｇ／ｍ2 ・２４時間であり、かつ結露量が１０ｇ／ｍ
2 以下であることを特徴とする新規にして優れた防水加
工布帛を取得したのである。That is, the inventors of the present invention have conducted extensive studies and found that a microporous membrane layer is formed by applying a mixed solution of a hydrophilic polyurethane resin and a non-hydrophilic polyurethane resin to at least one surface of a fabric. The method for producing a waterproof fabric according to claim 1, which has a microporous membrane layer mainly composed of a polyurethane resin composition containing a hydrophilic polyurethane resin on at least one surface of the fabric and has a water pressure resistance of 3000 to 40.
000 mmH 2 O and water vapor transmission rate of 6000 to 1200
0g / m 2 · 24 hours, and the amount of condensation is 10g / m
We have obtained a new and excellent waterproof fabric, which is characterized in that it is 2 or less.
【００１７】すなわち、透湿性の優れた親水性ポリウレ
タン樹脂と非透湿性であり、したがって成膜性の優れた
非親水性ポリウレタン樹脂とをブレンドすることによ
り、湿式ゲル化させたときに形成される多孔膜の壁自体
に透湿性を持たせ、結露発生によって物理的通路が封鎖
されても、透湿性の低下が小さく、低結露性の防水加工
布が得られ、かつこのものは高い耐水圧を有し、表面の
べとつきが少ないものであることを見出したのである。That is, a hydrophilic polyurethane resin having excellent moisture permeability and a non-hydrophilic polyurethane resin having non-moisture permeability and therefore excellent in film-forming property are blended to form a wet gel. Even if the physical passages are blocked by the generation of dew condensation, the deterioration of the moisture permeability is small, and a waterproof cloth with low dew condensation can be obtained, and this one has high water pressure resistance. It has been found that it has a low stickiness on the surface.
【００１８】[0018]
【発明の実施の形態】以下、本発明をさらに詳しく説明
する。本発明において、防水加工布帛の耐水圧は、３０
００〜４００００ｍｍＨ2 Ｏであることが必要である。
３０００ｍｍＨ2 Ｏ未満であると、防水性が不充分であ
り、４００００ｍｍＨ2 Ｏを超えると、耐水圧が勝ちす
ぎ、かんじんの透湿性が損なわれてしまう。また、本発
明において、防水加工布帛の透湿度が６０００〜１２０
００ｇ／ｍ2 ・２４時間であることが必要である。防水
加工布帛の透湿度は、この範囲が衣料素材として、快適
性に優れる。さらに、本発明において結露量が１０ｇ／
ｍ2 以下であることが必要である。この値を超えると、
防水加工布帛の表面のべとつきが出てきて、好ましくな
いのである。本発明において結露量が４ｇ／ｍ2 以下で
あることが好ましい。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. In the present invention, the waterproof fabric has a water pressure resistance of 30.
It is necessary to be 00 to 40,000 mmH 2 O.
If it is less than 3000 mmH 2 O, the waterproof property is insufficient, and if it exceeds 40000 mmH 2 O, the water pressure resistance is too high and the moisture permeability of the dust is impaired. Further, in the present invention, the moisture permeability of the waterproof cloth is 6000 to 120.
It is necessary to be 00 g / m 2 · 24 hours. The water vapor permeability of the waterproof fabric is excellent in comfort as a clothing material in this range. Further, in the present invention, the amount of dew condensation is 10 g /
It must be m 2 or less. If this value is exceeded,
This is not preferable because the surface of the waterproof cloth becomes sticky. In the present invention, the amount of dew condensation is preferably 4 g / m 2 or less.
【００１９】本発明において、上記した高い耐水圧、透
湿性および低結露性を達成するために、微多孔質膜層の
厚みが１５〜１５０μｍであることが好ましく、また、
微多孔質膜層の空孔率が１０〜７５％であることが好ま
しい。In the present invention, in order to achieve the above-mentioned high water pressure resistance, moisture permeability and low dew condensation property, it is preferable that the thickness of the microporous membrane layer is 15 to 150 μm.
The porosity of the microporous membrane layer is preferably 10 to 75%.
【００２０】本発明において、耐水圧の測定は、ＪＩＳ
規格Ｌ−１０９２により、透湿度の測定は、ＪＩＳ規格
Ｌ−１０９９（Ａ−１）による。また、結露量の測定
は、次のとおりである。すなわち、５００ｃｃのビーカ
ーに４０℃の温湯を５００ｃｃ入れ、試験布のコーティ
ング面が下になるようにかぶせ、温度１０℃、湿度６０
％ＲＨの恒温槽に１時間放置したのち、コーティング部
分に付着した、すなわち結露した水滴量を重量で測定し
た。In the present invention, the water pressure resistance is measured according to JIS
According to the standard L-1092, the moisture permeability is measured according to JIS standard L-1099 (A-1). The measurement of the amount of dew condensation is as follows. That is, put 500 cc of hot water at 40 ° C. in a 500 cc beaker, cover it with the coated surface of the test cloth facing down, and keep the temperature at 10 ° C. and humidity at 60
After left in a thermostatic bath of% RH for 1 hour, the amount of water droplets attached to the coated portion, that is, dewed, was measured by weight.
【００２１】本発明において使用される親水性ポリウレ
タン樹脂としては、厚み１２μの乾式無孔質膜とした場
合透湿度３，０００〜６，０００ｇ／ｍ2 ・２４時間で
あるポリウレタン樹脂が好ましい。この透湿度が３，０
００ｇ／ｍ2 ・２４時間以上が好ましいのは、布帛に充
分な透湿性を付与し、かつ低結露性を付与するからであ
る。また、この透湿度が６，０００ｇ／ｍ2 ・２４時間
以下が好ましいのは、これを超えると高い耐水圧が得ら
れにくくなるからである。The hydrophilic polyurethane resin used in the present invention is preferably a polyurethane resin having a moisture permeability of 3,000 to 6,000 g / m 2 · 24 hours when a dry non-porous membrane having a thickness of 12 μm is used. This water vapor transmission rate is 3,0
00 g / m 2 · 24 hours or more is preferable because it imparts sufficient moisture permeability to the fabric and low dew condensation property. Further, the moisture permeability is preferably 6,000 g / m 2 · 24 hours or less, because if it exceeds this, it becomes difficult to obtain a high water pressure resistance.
【００２２】本発明において使用される非親水性ポリウ
レタン樹脂としては、厚み１２μの乾式無孔質膜とした
場合透湿度０〜１０００ｇ／ｍ2 ・２４時間であるポリ
ウレタン樹脂が好ましい。この透湿度が１０００ｇ／ｍ
2 ・２４時間を超えると所望の製膜性の改善が得らにく
く、結局所望の透湿防水加工布を与え難くなるからであ
る。The non-hydrophilic polyurethane resin used in the present invention is preferably a polyurethane resin having a moisture permeability of 0 to 1000 g / m 2 · 24 hours when a dry non-porous membrane having a thickness of 12 μm is used. This moisture vapor transmission rate is 1000 g / m
This is because if it exceeds 2 · 24 hours, it is difficult to obtain the desired improvement in film-forming property, and it becomes difficult to give the desired moisture-permeable and waterproof cloth after all.
【００２３】本発明において、それらの親水性ポリウレ
タン樹脂とそれらの親水性ポリウレタン樹脂との混合比
が１：３〜３：１であることが好ましい。この混合比が
１：３未満では、低結露性の達成効果が不足気味にな
り、３：１を超えると透湿防水加工布の表面にべとつき
が生じる傾向が出てくるのである。In the present invention, it is preferable that the mixing ratio of the hydrophilic polyurethane resin and the hydrophilic polyurethane resin is 1: 3 to 3: 1. If the mixing ratio is less than 1: 3, the effect of achieving low dew condensation tends to be insufficient, and if it exceeds 3: 1, the surface of the moisture-permeable and waterproof cloth tends to become sticky.
【００２４】本発明において、微多孔質膜層を布帛の少
なくとも片面に形成させるには、親水性ポリウレタン樹
脂と親水性ポリウレタン樹脂の混合液を付与する方法が
好ましい。In the present invention, in order to form the microporous membrane layer on at least one side of the cloth, a method of applying a mixed solution of hydrophilic polyurethane resin and hydrophilic polyurethane resin is preferable.
【００２５】かかる親水性ポリウレタン樹脂としては、
ポリオール成分の２０〜６０モル％がポリエチレングリ
コール及び又はポリプロピレングリコールであるポリウ
レタン樹脂が、好ましく用いられる。特に好ましいのは
ポリオール成分の２０〜６０モル％がポリエチレングリ
コールであるポリウレタン樹脂である。この場合、他の
ポリオール成分としては特に制限はないが、例えばポリ
エステルグリコール、ポリカーボネートグリコール、お
よび他のポリエーテルクリコールが使用される。 本発
明の親水性ポリウレタン樹脂を構成するポリイソシアネ
ート成分としては、公知の脂肪族ならびに芳香族ポリイ
ソシアネートが使用でき、例えば、ヘキサメチレンジイ
ソシアネート、トルエンジイソシアネート、キシレンジ
イソシアネート、イソホロンジイソシアネート、及び
４，４´−ジフェニルメタンジイソシアネートが挙げら
れる。As the hydrophilic polyurethane resin,
A polyurethane resin in which 20 to 60 mol% of the polyol component is polyethylene glycol and / or polypropylene glycol is preferably used. Particularly preferred is a polyurethane resin in which 20 to 60 mol% of the polyol component is polyethylene glycol. In this case, the other polyol component is not particularly limited, but for example, polyester glycol, polycarbonate glycol, and other polyether glycol are used. As the polyisocyanate component constituting the hydrophilic polyurethane resin of the present invention, known aliphatic and aromatic polyisocyanates can be used, for example, hexamethylene diisocyanate, toluene diisocyanate, xylene diisocyanate, isophorone diisocyanate, and 4,4′- Diphenylmethane diisocyanate may be mentioned.
【００２６】本発明において、非親水性ポリウレタン樹
脂としては、ポリイソシアネート成分が４，４´−ジフ
ェニルメタンジイソシアネート（以下ＭＤＩと省略す
る）であるポリウレタン樹脂が好ましく用いられる。In the present invention, as the non-hydrophilic polyurethane resin, a polyurethane resin whose polyisocyanate component is 4,4'-diphenylmethane diisocyanate (hereinafter abbreviated as MDI) is preferably used.
【００２７】本発明において、ポリウレタン樹脂を極性
有機溶剤に溶解してポリウレタン樹脂溶液を調整し、こ
れを布帛にコーティングする。かかる極性有機溶剤とし
ては、例えば、ジメチルホルムアミド、ジメチルアセト
アミド、ジメチルスルホキサイド、Ｎ−メチルピロリド
ン、およびヘキサメチレンホスホンアミド等が挙げられ
る。ポリウレタン樹脂溶液中に助剤、例えば、フッ素系
撥水剤や架橋剤を添加しても良いことは勿論である。In the present invention, the polyurethane resin is dissolved in a polar organic solvent to prepare a polyurethane resin solution, which is then coated on a cloth. Examples of the polar organic solvent include dimethylformamide, dimethylacetamide, dimethylsulfoxide, N-methylpyrrolidone, and hexamethylenephosphonamide. Needless to say, an auxiliary agent such as a fluorine-based water repellent or a cross-linking agent may be added to the polyurethane resin solution.
【００２８】本発明において、布帛としては各種合成繊
維の平織物（タフタ）、綾織物、又は編物、天然繊維や
半合成繊維の各種生地、不織布などが使用できる。な
お、この布帛に浸透防止のために、予め撥水剤による処
理を施しておくことが望ましい。 ポリウレタン樹脂溶
液の布帛へのコーティング量は、ウエットにて５０〜５
００ｇ／ｍ2 の範囲が好ましく、５０ｇ／ｍ2 未満では
ポリウレタン多孔質皮膜が薄くなりすぎて耐水圧が得に
くいし、一方、５００ｇ／ｍ2 を超えると所定以上の効
果の向上は望めないし、逆に透湿性に悪影響が出やすく
なる。In the present invention, as the cloth, a plain woven fabric (taffeta) of various synthetic fibers, a twill woven fabric, or a knitted fabric, various woven fabrics of natural fibers or semi-synthetic fibers, and non-woven fabrics can be used. In addition, it is desirable that the cloth be previously treated with a water repellent to prevent penetration. The amount of the polyurethane resin solution coated on the cloth is 50 to 5 by wet.
Ranges preferably 200 g / m 2, to difficult to obtain a water pressure resistance too thin polyurethane porous film is less than 50 g / m 2, whereas, to not be expected improvement of a predetermined or more effects exceeding 500 g / m 2, On the contrary, the moisture permeability tends to be adversely affected.
【００２９】本発明において、コーティング方法として
はナイフコーティング、ナイフオーバーロールコーティ
ング、リバースロールコーティングなど各種のコーティ
ング方法が使用出来る。ポリウレタン樹脂溶液を布帛に
コーティングした後、これを水を主体とする凝固液に浸
漬し、極性有機溶剤を水中に除去することにより、ポリ
ウレタン樹脂をゲル化させるのである。いわゆる湿式ゲ
ル化を行うのである。この凝固液としては、水だけでも
良いが、その凝固スピードを制御するためにポリウレタ
ン樹脂溶液で使ったのと同じ極性有機溶剤を４０％以下
の範囲で予めこの水に溶解させておいても良い。湿式ゲ
ル化が終了したら、常法に従い水洗・乾燥して防水加工
布を得る。In the present invention, various coating methods such as knife coating, knife over roll coating and reverse roll coating can be used as the coating method. After coating the fabric with the polyurethane resin solution, the fabric is dipped in a coagulating liquid mainly composed of water to remove the polar organic solvent into the water, thereby gelling the polyurethane resin. So-called wet gelation is performed. As the coagulating liquid, only water may be used, but the same polar organic solvent used in the polyurethane resin solution may be previously dissolved in the water in the range of 40% or less in order to control the coagulating speed. . After the completion of the wet gelation, it is washed with water and dried according to a conventional method to obtain a waterproof cloth.
【００３０】かくして得られる本発明にかかる防水加工
布は耐水圧３，０００ｍｍＨ2 Ｏ以上の高耐水圧を有
し、しかも透湿度６，０００ｍ2 ・２４時間以上の高透
湿性を持ち、かつ結露量１０ｇ／ｍ2 以下の低結露性を
併せ備えているのである。結露量は、４ｇ／ｍ2 以下が
好ましい。The waterproof cloth according to the present invention obtained thus have a water pressure resistance 3,000mmH 2 O or more high water pressure resistance, yet it has a moisture permeability 6,000 m 2 · 24 hours or more of high moisture, and dew It also has a low dew condensation amount of 10 g / m 2 or less. The amount of dew condensation is preferably 4 g / m 2 or less.
【００３１】[0031]
【実施例】次に、実施例により本発明をさらに詳しく説
明するが本発明はこれらに限定されるものではない。EXAMPLES Next, the present invention will be described in more detail by way of examples, which should not be construed as limiting the invention thereto.
【００３２】［実施例１］７０デニールのナイロンフィ
ラメントヤーンで構成されたナイロンタフタに、フッ素
系撥水剤にて撥水処理を行った。すなわち、撥水剤アサ
ヒガードＡＧ７１０（明成化学（株）製）を３重量％含
有した水分散液に上記タフタを浸漬し、絞り率４０％に
ピックアップしヒートセッターにて１３０℃×３０秒の
乾熱熱処理を施した。Example 1 Nylon taffeta composed of 70 denier nylon filament yarn was subjected to water repellent treatment with a fluorine-based water repellent. That is, the taffeta was immersed in an aqueous dispersion containing 3% by weight of a water repellent Asahi Guard AG710 (manufactured by Meisei Chemical Co., Ltd.), picked up at a squeezing ratio of 40%, and dried at 130 ° C. for 30 seconds with a heat setter. Heat treatment was applied.
【００３３】親水性ポリウレタン樹脂溶液は次のように
して調整した。すなわち、ポリオールとして平均分子量
２０００のポリテトラメチレグリコール及び平均分子量
２０００のポリエチレングリコール、及び平均分子量２
０００のポリプロピレングリコールを５０℃のジメチル
ホルムアミド（以下ＤＭＦという）中に攪拌溶解させ、
ジイソシアネートとしてＭＤＩをモル比で０．２／０．
１５／０．１５／３．０で投入し、約１時間攪拌して、
プレポリマーを得た。次に、鎖伸長剤としてエチレング
リコールを上記モル比２．５を滴下してポリマー化反応
を生じさせ、ＤＭＦにて適宜希釈し３０重量％のポリウ
レタン樹脂溶液を得た。かくして得られたポリウレタン
樹脂は、厚み１２μの乾式無孔質膜が透湿度５，８００
ｇ／ｍ2・２４時間であるポリウレタン樹脂であった。The hydrophilic polyurethane resin solution was prepared as follows. That is, as the polyol, polytetramethyl glycol having an average molecular weight of 2000 and polyethylene glycol having an average molecular weight of 2000, and an average molecular weight of 2
000 polypropylene glycol was dissolved in dimethylformamide (hereinafter referred to as DMF) at 50 ° C. with stirring,
MDI was used as the diisocyanate in a molar ratio of 0.2 / 0.
Charge at 15 / 0.15 / 3.0, stir for about 1 hour,
A prepolymer was obtained. Next, ethylene glycol as a chain extender was added dropwise at the above molar ratio of 2.5 to cause a polymerization reaction, and was appropriately diluted with DMF to obtain a 30 wt% polyurethane resin solution. The polyurethane resin thus obtained has a water vapor permeability of 5,800 when the dry non-porous film having a thickness of 12 μm is used.
The polyurethane resin was g / m 2 · 24 hours.
【００３４】この親水性ポリウレタン樹脂７０重量部
に、厚み１２μの乾式無孔質膜が透湿度５００ｇ／ｍ2
・２４時間である非親水性ポリウレタン樹脂すなわちク
リスボン８１６６（大日本インキ化学工業（株）製）５
重量部、ＤＭＦ５０重量部、撥水剤アサヒガードＡＧ６
５０（明成化学（株）製）５重量部、ブロックイソシア
ネート系架橋剤バーノックＤ−５００（大日本インキ化
学工業（株）製）１重量部を加えて混合した。この樹脂
溶液を、上記で得られたナイロンタフタに１５０ｇ／ｍ
2 の割合でコーティングし、ＤＭＦを１０重量％含有し
た水溶液を凝固液とする浴槽中に３０℃にて３分間浸漬
してポリウレタン塗布液を湿式ゲル化させ、ついで８０
℃温湯にて１０分間水洗し、１１０℃にて熱風乾燥後、
１６０℃にて３分間の熱処理を行なった。得られた布帛
について、耐水圧、透湿度、及び結露量を測定した。結
果を表１に示した。A dry non-porous membrane having a thickness of 12 μ was applied to 70 parts by weight of this hydrophilic polyurethane resin, and the moisture permeability was 500 g / m 2.
・ Non-hydrophilic polyurethane resin for 24 hours, namely Chris Bonn 8166 (manufactured by Dainippon Ink and Chemicals, Inc.) 5
Parts by weight, DMF 50 parts by weight, water repellent Asahi Guard AG6
5 parts by weight of 50 (manufactured by Meisei Chemical Co., Ltd.) and 1 part by weight of block isocyanate cross-linking agent Barnock D-500 (manufactured by Dainippon Ink and Chemicals, Inc.) were added and mixed. 150 g / m of this resin solution was added to the nylon taffeta obtained above.
The coating solution is coated at a ratio of 2 and immersed in a bath containing an aqueous solution containing 10% by weight of DMF as a coagulating solution at 30 ° C. for 3 minutes to wet-form the polyurethane coating solution, and then 80
Wash with warm water at ℃ for 10 minutes, dry with hot air at 110 ℃,
Heat treatment was performed at 160 ° C. for 3 minutes. With respect to the obtained cloth, the water pressure resistance, the water vapor transmission rate, and the amount of dew condensation were measured. The results are shown in Table 1.
【００３５】表１において各データの測定方法は下記の
通りである。The measurement method of each data in Table 1 is as follows.
【００３６】耐水圧：ＪＩＳ規格 Ｌ−１０９２による 透湿度：ＪＩＳ規格 Ｌ−１０９９（Ａ−１）による 結露量：５００ｃｃのビーカーに４０℃の温湯を５００
ｃｃ入れ、試験布のコーティング面が下になるようにか
ぶせ、温度１０℃、湿度６０％ＲＨの恒温槽に１時間放
置したのち、コーティング部分に付着した、すなわち結
露した水滴量を重量で測定した。Water pressure resistance: According to JIS standard L-1092 Moisture vapor transmission rate: According to JIS standard L-1099 (A-1) Condensation amount: 500cc hot water at 40 ° C in a beaker of 500cc
After putting it in cc and covering it so that the coated surface of the test cloth was facing down, and leaving it in a thermostat at a temperature of 10 ° C. and a humidity of 60% RH for 1 hour, the amount of water droplets attached to the coated portion, that is, dew condensation was measured by weight. .
【００３７】べとつき感：結露量測定後、樹脂表面を手
でさわり評価した。Stickiness: After measuring the amount of dew condensation, the resin surface was touched and evaluated by hand.
【００３８】［実施例２］実施例１で得られた親水性ポ
リウレタン樹脂５０重量部に、実施例１と同じ非親水性
ポリウレタン樹脂クリスボン８１６６ ５０重量部、Ｄ
ＭＦ５０重量部、撥水剤アサヒガードＡＧ６５０（明成
化学（株）製）５重量部、ブロックイソシアネート系架
橋剤バーノックＤ−５００（大日本インキ化学工業
（株）製）１重量部を加えて混合した。この樹脂溶液
を、実施例１で用いたナイロンタフタに１５０ｇ／ｍ2
の割合でコーティングし、ＤＭＦを１０重量％含有した
水溶液を凝固液とする浴槽中に３０℃にて３分間浸漬し
てポリウレタン塗布液を湿式ゲル化させ、ついで８０℃
温湯にて１０分間水洗し、１１０℃にて熱風乾燥後、１
６０℃にて３分間の熱処理を行なった。得られた布帛に
ついて、耐水圧、透湿度、及び結露量を測定した。結果
を表１に示した。Example 2 50 parts by weight of the hydrophilic polyurethane resin obtained in Example 1 was added to 50 parts by weight of the same non-hydrophilic polyurethane resin Crisbon 8166 as in Example 1, D
50 parts by weight of MF, 5 parts by weight of water repellent Asahi Guard AG650 (manufactured by Meisei Chemical Co., Ltd.), and 1 part by weight of block isocyanate cross-linking agent Barnock D-500 (manufactured by Dainippon Ink and Chemicals, Inc.) were added and mixed. . 150 g / m 2 of this resin solution was applied to the nylon taffeta used in Example 1.
The coating solution is dipped in a bath containing an aqueous solution containing 10% by weight of DMF as a coagulating solution at 30 ° C. for 3 minutes to wet the polyurethane coating solution, and then at 80 ° C.
Rinse with warm water for 10 minutes, dry with hot air at 110 ° C, and then 1
Heat treatment was performed at 60 ° C. for 3 minutes. With respect to the obtained cloth, the water pressure resistance, the water vapor transmission rate, and the amount of dew condensation were measured. The results are shown in Table 1.
【００３９】［実施例３］実施例１で得られた親水性ポ
リウレタン樹脂３０重量部に、実施例１と同じ非親水性
ポリウレタン樹脂クリスボン８１６６ ７０重量部、Ｄ
ＭＦ５０重量部、撥水剤アサヒガードＡＧ６５０（明成
化学（株）製）５重量部、ブロックイソシアネート系架
橋剤バーノックＤ−５００（大日本インキ化学工業
（株）製）１重量部を加えて混合した。この樹脂溶液
を、実施例１で用いたナイロンタフタに１５０ｇ／ｍ2
の割合でコーティングし、ＤＭＦを１０重量％含有した
水溶液を凝固液とする浴槽中に３０℃にて３分間浸漬し
てポリウレタン塗布液を湿式ゲル化させ、ついで８０℃
温湯にて１０分間水洗し、１１０℃にて熱風乾燥後、１
６０℃にて３分間の熱処理を行なった。得られた布帛に
ついて、耐水圧、透湿度、及び結露量を測定した。結果
を表１に示した。Example 3 To 30 parts by weight of the hydrophilic polyurethane resin obtained in Example 1, 70 parts by weight of the same non-hydrophilic polyurethane resin Crisbon 8166 as in Example 1, D
50 parts by weight of MF, 5 parts by weight of water repellent Asahi Guard AG650 (manufactured by Meisei Chemical Co., Ltd.), and 1 part by weight of block isocyanate cross-linking agent Barnock D-500 (manufactured by Dainippon Ink and Chemicals, Inc.) were added and mixed. . 150 g / m 2 of this resin solution was applied to the nylon taffeta used in Example 1.
The coating solution is dipped in a bath containing an aqueous solution containing 10% by weight of DMF as a coagulating solution at 30 ° C. for 3 minutes to wet the polyurethane coating solution, and then at 80 ° C.
Rinse with warm water for 10 minutes, dry with hot air at 110 ° C, and then 1
Heat treatment was performed at 60 ° C. for 3 minutes. With respect to the obtained cloth, the water pressure resistance, the water vapor transmission rate, and the amount of dew condensation were measured. The results are shown in Table 1.
【００４０】［比較例１］従来品ポリウレタン樹脂クリ
スボン８１６６（大日本インキ化学工業（株）製）１０
０重量部、ＤＭＦ５０重量部、撥水剤アサヒガードＡＧ
６５０（明成化学（株）製）５重量部、ブロックイソシ
アネート系架橋剤バーノックＤ−５００（大日本インキ
化学工業（株）製）１重量部を加えて混合した混合樹脂
を実施例１で用いたナイロンタフタに１５０ｇ／ｍ2 の
割合でコーティングし、ＤＭＦを１０重量％含有した水
溶液を凝固液とする浴槽中に３０℃にて３分間浸漬して
ポリウレタン塗布液を湿式ゲル化させ、ついで８０℃温
湯にて１０分間水洗し、１４０℃にて熱風乾燥後、１６
０℃にて３分間の熱処理を行なった。得られた布帛につ
いて、耐水圧、透湿度、及び結露量を測定した。結果を
表１に示した。[Comparative Example 1] Conventional polyurethane resin Crisbon 8166 (manufactured by Dainippon Ink and Chemicals, Inc.) 10
0 parts by weight, DMF 50 parts by weight, water repellent Asahi Guard AG
A mixed resin obtained by adding 5 parts by weight of 650 (manufactured by Meisei Chemical Co., Ltd.) and 1 part by weight of a block isocyanate cross-linking agent Barnock D-500 (manufactured by Dainippon Ink and Chemicals, Inc.) was used in Example 1. Nylon taffeta was coated at a rate of 150 g / m 2 , and immersed in a bath containing an aqueous solution containing 10% by weight of DMF as a coagulating solution at 30 ° C. for 3 minutes to wet-form the polyurethane coating solution, and then at 80 ° C. Rinse with warm water for 10 minutes, dry with hot air at 140 ° C, then 16
Heat treatment was performed at 0 ° C. for 3 minutes. With respect to the obtained cloth, the water pressure resistance, the water vapor transmission rate, and the amount of dew condensation were measured. The results are shown in Table 1.
【００４１】［比較例２］実施例１で得られた親水性ポ
リウレタン樹脂１００重量部、ＤＭＦ５０重量部、撥水
剤アサヒガードＡＧ６５０（明成化学（株）製）５重量
部、ブロックイソシアネート系架橋剤バーノックＤ−５
００（大日本インキ化学工業（株）製）１重量部を加え
て混合した樹脂溶液を、実施例１で用いたナイロンタフ
タに１５０ｇ／ｍ2 の割合でコーティングし、ＤＭＦを
１０重量％含有した水溶液を凝固液とする浴槽中に３０
℃にて３分間浸漬してポリウレタン塗布液を湿式ゲル化
させ、ついで８０℃温湯にて１０分間水洗し、１１０℃
にて熱風乾燥後、１６０℃にて３分間の熱処理を行なっ
た。得られた布帛について、耐水圧、透湿度、及び結露
量を測定した。結果を表１に示した。Comparative Example 2 100 parts by weight of the hydrophilic polyurethane resin obtained in Example 1, 50 parts by weight of DMF, 5 parts by weight of water repellent Asahi Guard AG650 (manufactured by Meisei Chemical Co., Ltd.), blocked isocyanate cross-linking agent. Burnock D-5
Nylon taffeta used in Example 1 was coated with a resin solution prepared by adding 1 part by weight of 00 (manufactured by Dainippon Ink and Chemicals, Inc.) and mixing it at a rate of 150 g / m 2 , and contained 10% by weight of DMF. 30 in a bath with an aqueous solution as a coagulating liquid
Immerse the polyurethane coating solution in a wet gel at ℃ for 3 minutes, then wash with hot water at 80 ℃ for 10 minutes, 110 ℃
After being dried with hot air at 3, heat treatment was performed at 160 ° C. for 3 minutes. With respect to the obtained cloth, the water pressure resistance, the water vapor transmission rate, and the amount of dew condensation were measured. The results are shown in Table 1.
【００４２】[0042]
【表１】 この表１から明らかなように、従来品である非親水性ポ
リウレタン樹脂の使用例では、高耐水圧・高透湿性が得
られるものの結露性は悪くなっている。また親水性ポリ
ウレタンの使用により、結露性は改善されるものの、製
膜性が悪くなり、微多孔膜が形成されないため耐水圧・
透湿性が悪くなっているのである。加えて、結露性の測
定時にべとつき感があった。一方、本発明の実施例によ
り得られる加工布はいずれも高耐水圧と高透湿性を併せ
持ち、かつ結露性が向上し、べとつき感が無かった。[Table 1] As is clear from Table 1, in the use example of the conventional non-hydrophilic polyurethane resin, high water pressure resistance and high moisture permeability are obtained, but dew condensation is poor. In addition, although the use of hydrophilic polyurethane improves the dew condensation property, it deteriorates the film-forming property and does not form a microporous film, so the water pressure resistance and
The moisture permeability is poor. In addition, there was a sticky feeling when measuring the dew condensation property. On the other hand, each of the processed cloths obtained in the examples of the present invention had both high water pressure resistance and high moisture permeability, improved dew condensation and no sticky feeling.
【００４３】また、上記の実施例および比較例からする
と、使用するポリウレタン樹脂の混合比率が親水性樹脂
７０重量％の時（実施例１）耐水圧、透湿性が限界に近
く、また、親水性樹脂３０重量％の時（実施例３）では
結露性が限界に近くなっていることが認められる。Further, according to the above Examples and Comparative Examples, when the mixing ratio of the polyurethane resin used is 70% by weight of the hydrophilic resin (Example 1), the water pressure resistance and moisture permeability are close to the limit, and the hydrophilicity is high. When the resin content is 30% by weight (Example 3), it is recognized that the dew condensation property is close to the limit.
【００４４】[0044]
【発明の効果】本発明は、雨や海水などを通さず、しか
も蒸れず、結露によるべとつき感がないという非常に快
適な衣料用素非材として優れた有用性を発揮する透湿防
水加工布を提供できた。INDUSTRIAL APPLICABILITY The present invention is a breathable waterproof cloth which exhibits excellent usefulness as a very comfortable non-material for clothing that does not pass rain or seawater, does not get damp, and has no sticky feeling due to dew condensation. Could be provided.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 上本 雅則 京都市南区吉祥院落合町15番地 第一レー ス株式会社京都工場内 (72)発明者 古谷 武徳 京都市南区吉祥院落合町15番地 第一レー ス株式会社京都工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masanori Uemoto 15 Ochiai-cho, Kichijoin, Minami-ku, Kyoto Dai-Race Co., Ltd.Kyoto factory (72) Takenori Furuya 15 Ochiai-cho, Kichishoin, Minami-ku, Kyoto Ichirace Co., Ltd. Kyoto factory
Claims (9)
ン樹脂を含むポリウレタン樹脂組成物から主としてなる
微多孔質膜層を有し、耐水圧が３０００〜４００００ｍ
ｍＨ2 Ｏであり、透湿度が６０００〜１２０００ｇ／ｍ
2 ・２４時間であり、かつ結露量が１０ｇ／ｍ2 以下で
あることを特徴とする防水加工布帛。1. A microporous membrane layer composed mainly of a polyurethane resin composition containing a hydrophilic polyurethane resin on at least one side of a cloth, and the water pressure resistance is 3000 to 40,000 m.
mH 2 O and moisture vapor transmission rate of 6000 to 12000 g / m
A waterproof cloth which has a dew condensation amount of 10 g / m 2 or less for 2 to 24 hours.
とする請求項１記載の防水加工布帛。2. The waterproof fabric according to claim 1, which has a dew condensation amount of 4 g / m 2 or less.
の２０〜６０モル％がポリエチレングリコールおよびポ
リプロピレングリコールのうち少なくともいずか一方で
あることを特徴とする請求項１または請求項２記載の防
水加工布帛。3. The waterproof cloth according to claim 1 or 2, wherein 20 to 60 mol% of the polyol component of the hydrophilic polyurethane resin is at least one of polyethylene glycol and polypropylene glycol. .
あることを特徴とする請求項１〜３のいずれかに記載の
防水加工布帛。4. The waterproof cloth according to claim 1, wherein the microporous membrane layer has a thickness of 15 to 150 μm.
ることを特徴とする請求項１〜４のいずれかに記載の防
水加工布帛。5. The waterproof fabric according to claim 1, wherein the microporous membrane layer has a porosity of 10 to 75%.
よび非親水性ポリウレタン樹脂の混合により形成される
ことを特徴とする請求項１〜５のいずれかに記載の防水
加工布帛。6. The waterproof cloth according to any one of claims 1 to 5, wherein the microporous membrane layer is formed by mixing a hydrophilic polyurethane resin and a non-hydrophilic polyurethane resin.
レタン樹脂との混合比が１：３〜３：１であることを特
徴とする請求項６記載の防水加工布帛。7. The waterproof cloth according to claim 6, wherein the mixing ratio of the hydrophilic polyurethane resin and the non-hydrophilic polyurethane resin is 1: 3 to 3: 1.
ン樹脂および非親水性ポリウレタン樹脂の混合溶液を付
与せしめて微多孔質膜層を形成することを特徴とする防
水加工布帛の製造方法。8. A method for producing a waterproof fabric, which comprises applying a mixed solution of a hydrophilic polyurethane resin and a non-hydrophilic polyurethane resin to at least one surface of the fabric to form a microporous membrane layer.
リウレタン樹脂の混合溶液中の親水性ポリウレタン樹脂
と親水性ポリウレタン樹脂との混合比が１：３〜３：１
であることを特徴とする請求項８記載の防水加工布帛の
製造方法。9. A mixing ratio of hydrophilic polyurethane resin and hydrophilic polyurethane resin in a mixed solution of hydrophilic polyurethane resin and non-hydrophilic polyurethane resin is 1: 3 to 3: 1.
9. The method for manufacturing a waterproof cloth according to claim 8, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5083696A JP3746830B2 (en) | 1996-02-14 | 1996-02-14 | Waterproof fabric and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5083696A JP3746830B2 (en) | 1996-02-14 | 1996-02-14 | Waterproof fabric and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09228253A true JPH09228253A (en) | 1997-09-02 |
| JP3746830B2 JP3746830B2 (en) | 2006-02-15 |
Family
ID=12869840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5083696A Expired - Lifetime JP3746830B2 (en) | 1996-02-14 | 1996-02-14 | Waterproof fabric and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3746830B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002155472A (en) * | 2000-11-16 | 2002-05-31 | Toray Ind Inc | Moisture permeable waterproof insulation material |
| JP2014073671A (en) * | 2012-09-13 | 2014-04-24 | Tec One Company | Waterproof moisture-permeable composite membrane and waterproof moisture-permeable fabric containing waterproof moisture-permeable composite membrane |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103710988A (en) * | 2013-12-23 | 2014-04-09 | 昆山华阳复合材料科技有限公司 | Marten-simulated thin film fabric with functions of wind resistance, heat preservation and ventilation |
-
1996
- 1996-02-14 JP JP5083696A patent/JP3746830B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002155472A (en) * | 2000-11-16 | 2002-05-31 | Toray Ind Inc | Moisture permeable waterproof insulation material |
| JP2014073671A (en) * | 2012-09-13 | 2014-04-24 | Tec One Company | Waterproof moisture-permeable composite membrane and waterproof moisture-permeable fabric containing waterproof moisture-permeable composite membrane |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3746830B2 (en) | 2006-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4022000B2 (en) | Moisture permeable waterproof fabric and method for producing the same | |
| EP1568485B1 (en) | Waterproof and breathable composite film, and waterproof and breathable composite fabric | |
| US4560611A (en) | Moisture-permeable waterproof coated fabric | |
| JP4176259B2 (en) | Breathable waterproof fabric | |
| JPS6047954B2 (en) | Coating fabric and its manufacturing method | |
| JPH11124774A (en) | Moisture-permeable waterproof fabric and method for producing the same | |
| JPH09228253A (en) | Waterproof fabric and its production | |
| JPH07229070A (en) | Production of coated fabric having moisture transmission and waterproofness | |
| JPH0754277A (en) | Production of moisture-permeable water-proofing coated cloth | |
| JP5350316B2 (en) | Durable polyurethane resin composition for moisture permeable waterproof sheet, moisture permeable waterproof sheet and method for producing the same | |
| JP4783046B2 (en) | Moisture permeable waterproof fabric and method for producing the same | |
| JPH06108365A (en) | Moisture-permeable water-proofing coating cloth and its production | |
| JPH0860558A (en) | Production of soft moisture-permeable waterproof fabric | |
| JPH0578984A (en) | Moisture-permeable and waterproof coated cloth | |
| JPH06316871A (en) | Moisture-permeable water-proofing cloth and its production | |
| JP2006160918A (en) | Polyurethane resin composition and moisture-permeable water-proof sheet | |
| JPH06272168A (en) | Moisture-permeable and waterproof-coated fabric | |
| JPH0327184A (en) | Moisture-permeable waterproof fabric | |
| JP4328552B2 (en) | Anti-static moisture permeable waterproof fabric | |
| JPH0413469B2 (en) | ||
| JPH07166479A (en) | Production of cloth having moisture-permeable water-proof coating | |
| JPH08246339A (en) | Heat-insulating, moisture-permeating, and water-proofing web | |
| JPH04146275A (en) | Moisture permeable waterproofing cloth having excellent waterproofing performance | |
| JPH07363B2 (en) | Breathable waterproof fabric | |
| JP2002129479A (en) | Method for producing moisture-permeating waterproof coated cloth having soft feeling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040116 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040203 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050517 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050713 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20051122 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20051125 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091202 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091202 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101202 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101202 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111202 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121202 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131202 Year of fee payment: 8 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |