JP3631810B2 - Water repellent fabric and method for producing the same - Google Patents
Water repellent fabric and method for producing the same Download PDFInfo
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- JP3631810B2 JP3631810B2 JP17009195A JP17009195A JP3631810B2 JP 3631810 B2 JP3631810 B2 JP 3631810B2 JP 17009195 A JP17009195 A JP 17009195A JP 17009195 A JP17009195 A JP 17009195A JP 3631810 B2 JP3631810 B2 JP 3631810B2
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- repellent
- acrylic resin
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- 239000005871 repellent Substances 0.000 title claims description 76
- 239000004744 fabric Substances 0.000 title claims description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 55
- 230000002940 repellent Effects 0.000 title claims description 33
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000011347 resin Substances 0.000 claims description 43
- 229920005989 resin Polymers 0.000 claims description 43
- 229930195733 hydrocarbon Natural products 0.000 claims description 31
- 150000002430 hydrocarbons Chemical class 0.000 claims description 31
- 239000004215 Carbon black (E152) Substances 0.000 claims description 30
- 239000006185 dispersion Substances 0.000 claims description 28
- 229920006395 saturated elastomer Polymers 0.000 claims description 28
- 239000004925 Acrylic resin Substances 0.000 claims description 27
- 229920000178 Acrylic resin Polymers 0.000 claims description 27
- 239000011342 resin composition Substances 0.000 claims description 20
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 16
- 229910052710 silicon Inorganic materials 0.000 claims description 16
- 239000010703 silicon Substances 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 16
- 229910052731 fluorine Inorganic materials 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 11
- 239000011737 fluorine Substances 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 11
- 239000003960 organic solvent Substances 0.000 claims description 9
- 230000009477 glass transition Effects 0.000 claims description 6
- 125000001153 fluoro group Chemical group F* 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims 1
- 229920002050 silicone resin Polymers 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 238000000576 coating method Methods 0.000 description 18
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 17
- 239000007787 solid Substances 0.000 description 17
- 239000000243 solution Substances 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 11
- 239000012188 paraffin wax Substances 0.000 description 8
- 239000002904 solvent Substances 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 7
- -1 polyethylene Polymers 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000003431 cross linking reagent Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000009998 heat setting Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 239000005456 alcohol based solvent Substances 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007607 die coating method Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical group FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007763 reverse roll coating Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
【０００１】
【産業上の利用分野】
本発明は、スポーツウエアあるいはカジュアルウエアを始めとする衣料分野向けの撥水加工布帛およびその製造方法に関し、更に詳しくは、合成繊維や天然繊維等からなる布帛に撥水加工用樹脂として飽和鎖式炭化水素（Ａ）を主体に使用した撥水加工の改良に関するものであり、繰り返し洗濯による撥水性能の低下や古着感を与えるクラック模様の再現性低下が極めて少なく、洗濯耐久性に優れた撥水性能等を有する撥水加工布帛およびその製造方法に関するものである。
【０００２】
【従来の技術】
従来、繊維布帛に対する撥水加工方法としては、フッ素系撥水剤、シリコーン系撥水剤、パラフィン系撥水剤などの水分散水溶液または有機溶剤溶液を繊維布帛に塗布または含浸した後、加熱処理する等の方法が行われている。上記撥水剤の中で特に飽和鎖式炭化水素であるパラフィン系撥水剤で加工された布帛は、皺状の独特のクラック模様をもっている。この独特のクラック模様は、撥水加工布帛の一部分を手で掴んだ場合にその部分にうっすらと発生するしわ模様であり、このようなしわ模様は、いわゆる古着感を布帛に与えることから、ファッション衣料用として広く利用されている。
【０００３】
しかしながら、従来のパラフィン系撥水剤は水分散体の性状のものであり、これを用いた撥水加工方法では、初期の撥水性能がフッ素系撥水剤やシリコーン系撥水剤を用いた場合に比較して若干劣るばかりでなく、繰り返し洗濯によって撥水性能の低下や独特のクラック模様の再現性低下が著しいという欠点があり改善が望まれていた。
ここでいうクラック模様の再現性低下とは、クラック模様の発現状態つまり皺の状態が、繰り返し行われる洗濯により弱くなり初期品に比較して著しく異なる状態になることをいう。
【０００４】
【発明が解決しようとする課題】
本発明の目的は、飽和鎖式炭化水素（Ａ）を主体に使用した撥水加工において、長期間着用しても撥水性能の低下やクラック模様の再現性低下が極めて少なく、洗濯耐久性に優れた撥水性能等を得ることができる撥水加工布帛およびその製造方法を提供することにある。
【０００５】
【課題を解決するための手段】
本発明者らは、飽和鎖式炭化水素（Ａ）を用いた撥水加工布帛およびその製造方法について鋭意検討を重ねた結果、融点３０℃ないし１５０℃の飽和鎖式炭化水素（Ａ）１００重量部を必須の成分として、これにガラス転移温度が３０℃以下のアクリル系樹脂（Ｂ）またはアクリル系樹脂（Ｂ）とガラス転移温度が３０℃以下のシリコン系樹脂（Ｃ）を１０〜６００重量部を添加してなる樹脂組成物（Ｄ）を有機溶剤溶液または飽和鎖式炭化水素（Ａ）が分散体状態となりそれ以外の樹脂成分が溶解した有機溶剤分散体の形で布帛に塗布または含浸した後、これを該飽和鎖式炭化水素（Ａ）の融点以上の温度で且つアクリル系樹脂（Ｂ）またはアクリル系樹脂（Ｂ）とシリコン系樹脂（Ｃ）が皮膜形成するに十分な温度と時間で加熱処理することによってクラック模様発現性を有すると共にクラック模様の再現性に優れた撥水加工布帛が製造されることを見出し本発明に至ったものである。
【０００６】
本発明における飽和鎖式炭化水素（Ａ）は、一般式 ＣｎＨ２ｎ＋２で表すことができ、ｎは該炭化水素の融点が３０℃ないし１５０℃に相当する値である。この要件を満足するものであれば任意のものが使用でき、例えば、固形パラフィン、低分子ポリエチレンおよび低分子ポリプロピレン単独あるいは、低分子ポリエチレンや低分子ポリプロピレンを主体とした共重合体などを挙げることができる。これらの化合物は単独で使用しても２種以上を併用してもよい。
【０００７】
飽和鎖式炭化水素（Ａ）の形態としては、常温にて塊状や粉末状であっても使用することができる。たとえば、粒径が約１００μ以下であればそれままの状態で使用できるが、それ以上の場合は、下記方法にてペースト状にして使用することができる。ペースト状にするには、一旦融点以上の温度にて完全に溶解した後、飽和鎖式炭化水素（Ａ）の貧溶媒で且つ、飽和鎖式炭化水素（Ａ）の融点以上の沸点を有する溶剤を添加し、徐々に攪拌しながら冷却することによって微粒子状に飽和鎖式炭化水素（Ａ）が析出し、溶剤を含んだペースト状のものが得られる。添加する溶剤量は、飽和鎖式炭化水素（Ａ）に対し５０〜２００重量％が好ましい。
【０００８】
本発明におけるアクリル系樹脂（Ｂ）およびシリコン系樹脂（Ｃ）は、それぞれの樹脂のガラス転移温度が３０℃以下であって、樹脂皮膜が柔軟で繊維布帛の風合いを損なわないものであれば適宜市販のアクリル系樹脂およびシリコン系樹脂を使用することができる。アクリル系樹脂（Ｂ）またはアクリル系樹脂（Ｂ）とシリコン系樹脂（Ｃ）の混合系には、樹脂皮膜単独の強度や繊維布帛との剥離強度の向上等を目的として、樹脂タイプに合った架橋剤を添加することができる。これらの樹脂の溶媒としては、芳香族系、ケトン系、エステル系、アルコール系の溶剤や塩素含有溶剤等が使用できる。
アクリル系樹脂（Ｂ）またはアクリル系樹脂（Ｂ）とシリコン系樹脂（Ｃ）の添加量は、飽和鎖式炭化水素（Ａ）１００重量部に対して、１０〜６００重量部、より好ましくは２０〜３００重量部である。これらの樹脂は単独で使用しても２種以上を併用してもよい。また、併用する場合それぞれ樹脂の割合に関しても特に制限はない。
【０００９】
本発明における飽和鎖式炭化水素（Ａ）とアクリル系樹脂（Ｂ）または飽和鎖式炭化水素（Ａ）とアクリル系樹脂（Ｂ）とシリコン系樹脂（Ｃ）からなる樹脂組成物（Ｄ）には、必要に応じてフッ素系撥水剤（Ｅ）を添加することができる。
本発明におけるフッ素系撥水剤（Ｅ）の代表的なものとしては、フルオロカーボン基を側鎖に有する含フッ素共重合体があげられるが、該撥水剤（Ｅ）に含まれるフッ素原子は５重量％以上、より好ましくは１０重量％以上である。フッ素原子含有量の測定法としては、一定量の試料を燃焼フラスコ装置を用いて燃焼させた後、吸収液をイオンクロマト分析する方法などがある。添加量は、樹脂組成物（Ｄ）１００重量部に対して０．１〜２０重量部、より好ましくは０．５〜１０重量部であり、０．５重量部より少ないと撥水耐久性能に対する寄与が十分でなく、また１０重量部以上になると風合硬化や樹脂皮膜強度が低下する。もし、樹脂組成物（Ｄ）だけで十分な耐久撥水性能が得られる場合には、フッ素系撥水剤（Ｅ）を添加する必要はない。
【００１０】
上記樹脂を混合して得られる樹脂組成物（Ｄ）には、さらに必要に応じて酸化チタンや着色顔料等を添加してもよい。また、塗布する際には、アクリル系樹脂（Ｂ）および／またはシリコン系樹脂（Ｃ）やフッ素系撥水剤（Ｅ）の溶剤に使用される一種類以上の溶剤を用いて均一な有機溶剤溶液とするか、または飽和鎖式炭化水素（Ａ）のみが分散体状態となった有機溶剤分散体とすることができる。樹脂組成物（Ｄ）溶液の粘度、樹脂固形分は、それぞれ２５℃で５０〜４００００センチポイズ（ｃｐｓ）、より好ましくは２００〜２００００ｃｐｓ、３〜５０重量％の範囲で使用される。
【００１１】
本発明における布帛としては、織物、編物、不織布等があり、その構成繊維素材としては、綿、麻、羊毛、絹等の天然繊維、ナイロン、ポリエステル、ポリウレタン、アクリル等の合成繊維等の繊維が使用でき、それらの混紡・交繊品であってもよい。尚、塗布加工の前に該布帛を、前処理として通常の水系等の撥水加工を施しておくと、アクリル系樹脂（Ｂ）および／またはシリコン系樹脂（Ｃ）が布帛中に深く浸透するのが抑えられて風合いの柔軟化に効果がある。この場合でも飽和鎖式炭化水素（Ａ）は布帛中に浸透するため、クラック模様の発生現象に関しては撥水加工を施してない場合と同等である。
【００１２】
本発明における塗布方法としては、塗布液が飽和鎖式炭化水素（Ａ）の分散体状態の場合はロールコート、リバースロールコート、ナイフコート、ダイコート、グラビアロールコート、浸漬塗布等の公知の塗布方法によって塗布することができる。また、塗布液が溶液状態の場合は、シャワーコート、スプレーコート、スクリーンコート等の塗布方法を使用することも可能である。また加熱処理条件は、飽和鎖式炭化水素（Ａ）の融点以上の温度で且つアクリル系樹脂（Ｂ）および／またはシリコン系樹脂（Ｃ）が皮膜形成するに十分な温度と加熱時間が必要である。これらの条件は使用する樹脂成分に応じ適宜決定しうる。一般的には１００℃以上１分以上の温度と時間が用いられる。該塗布方法により塗布する樹脂組成物（Ｄ）の樹脂量は１〜３５ｇ／ｍ２、好ましくは３〜２０ｇ／ｍ２の範囲で塗布することにより、初期の性能を得ることができる。
【００１３】
本発明により片面のみ塗布加工された撥水加工布帛を衣料として使用するにあたっては塗布加工された面を表面として使用する場合と塗布加工されていない面を表面として使用する場合が考えられる。基本的には前者で使用されるか、飽和鎖式炭化水素（Ａ）が布帛中に浸透しているため、後者で使用することも可能である。しかしこの場合、撥水耐久性は前者に比較して劣る。
【００１４】
【発明の効果】
従来のパラフィン系撥水剤を用いた撥水加工方法では、初期の撥水性能がフッ素系撥水剤やシリコーン系撥水剤に比較して若干劣る場合があるばかりでなく、繰り返し洗濯による撥水性能の耐久性が不十分であり、また独特のクラック模様の再現性低下が著しかったが、本発明により、長期間着用しても撥水性能の低下や古着感を与えるクラック模様の再現性低下が極めて少なく、洗濯耐久撥水性に優れた撥水加工布帛を得ることができる。
【００１５】
以下、本発明を実施例により説明する。なお、例中「部」、「％」はそれぞれ「重量部」、「重量％」を示す。
【００１６】
【実施例】
１）評価方法
実施例によって本発明をさらに具体的に示すが、実施例における布帛の性能の評価は、下記の方法で行った。
【００１７】
▲１▼撥水性評価：ＪＩＳ Ｌ−１０９２（スプレー法）に準じて、撥水加工布帛の混合樹脂組成物塗布加工面を評価した。
＜評価基準＞
点数 布帛表面状態
１００： 表面に付着湿潤のないもの
９０： 表面にわずかに付着湿潤を示すもの
８０： 表面に部分的に湿潤を示すもの
７０： 表面に湿潤を示すもの
５０： 表面全体に湿潤を示すもの
０： 表裏両面が完全に湿潤を示すもの
【００１８】
▲２▼洗濯条件
家庭洗濯（ＪＩＳ Ｌ−０２１７、１０３法）５回、１０回、２０回後の試料について評価を行った。
【００１９】
▲３▼クラック模様の再現性評価
加工直後の布帛を基準にして、布帛の一部分を手で掴むハンドリングテストによりクラック模様の強弱を評価した。
＜評価基準＞
○印： 変化無し（加工直後と同等）
△印： クラック模様の発生程度が加工直後に比較して約半分
×印： クラック模様がほとんど発生しない
【００２０】
２）布帛の製造
布帛−１
経糸７０デニール４８フィラメント、緯糸１１５デニール７２フィラメントで、経糸密度１１５本／ｉｎｃｈ、緯糸密度７４本／ｉｎｃｈのナイロン６タフタを通常の方法で精錬、染色（ネビー）、乾燥し、１７０℃にて１分間熱セットを行って布帛を得た（仕上がり密度：経糸密度１２１本／ｉｎｃｈ、緯糸密度７８本／ｉｎｃｈ）。
【００２１】
布帛−２
布帛−１をフッ素系撥水剤エマルジョンのアサヒガードＡＧ−７１０（旭硝子株式会社製）５％水溶液に浸漬後ゴムロールにて絞液し（絞り率３４％）乾燥後１６０℃で１分間の熱処理を行い撥水加工布帛を得た。
【００２２】
布帛−３
経糸７０デニール４８ティラメント（ナイロン６）、緯糸３０番手（コットン）で、経糸密度１５４本／ｉｎｃｈ、緯糸密度５８本／ｉｎｃｈのナイロン／コットンタッサーを精錬、綿晒、染色（グリーン）、乾燥し、１７０℃にて１分間熱セットを行った後、フッ素系撥水剤エマルジョンのアサヒガードＡＧ−３１０（旭硝子株式会社製）５％水溶液に浸漬後ゴムロールにて絞液し（絞り率３８％）乾燥後１６０℃で１分間の熱処理を行い撥水加工布帛を得た（仕上がり密度：経糸密度１６０本／ｉｎｃｈ、緯糸密度５８本／ｉｎｃｈ）。
【００２３】
３）処方剤
処方−１
固形パラフィン（融点６８℃）１００部を１００℃に加熱溶解した後、トルエン１００部を添加して、固形パラフィンが微粒子状に析出するように、徐々に攪拌しながら冷却してペースト状の分散体を得た。
【００２４】
処方−２
下記処方によって混合樹脂組成物の分散体を得た。
飽和鎖式炭化水素（Ａ）の分散体
処方−１の固形パラフィン分散体 ２００部
（トルエン溶媒：固形分５０％）
アクリル系樹脂（Ｂ）溶液
パラクロン ＡＳ−３０００Ｅ（固形分３０％） ２００部
（根上工業株式会社製）
架橋剤成分
コロネート ＨＬ ５部
（日本ポリウレタン工業株式会社製）
フッ素系撥水剤（Ｅ）溶液
アサヒガード ＡＧ−５０５０（固形分２０％） １０部
（旭硝子株式会社製）
アサヒガード ＡＧ−５２０Ｎ（固形分１５％） ２０部
（旭硝子株式会社製）
上記、配合樹脂組成物にトルエンを適量添加して、樹脂分散体粘度を約５５００ｃｐｓ（２５℃）に調整した。
【００２５】
処方−３
下記処方によって混合樹脂組成物の分散体を得た。
飽和鎖式炭化水素（Ａ）の分散体
処方−１の固形パラフィン分散体 ２００部
（トルエン溶媒：固形分５０％）
アクリル系樹脂（Ｂ）溶液
パラクロン ＡＳ−３０００Ｅ（固形分３０％） ７５部
（根上工業株式会社製）
シリコン系樹脂（Ｃ）溶液
パラクロン ＰＥ−３０（（固形分３０％） １２５部
（根上工業株式会社製）
架橋剤成分
コロネート ＨＬ ４部
（日本ポリウレタン工業株式会社製）
フッ素系撥水剤（Ｅ）溶液
アサヒガード ＡＧ−５０５０（固形分２０％） １６部
（旭硝子株式会社製）
上記、配合樹脂組成物にトルエンを適量添加して、樹脂分散体粘度を約５５００ｃｐｓ（２５℃）に調整した。
【００２６】
処方−４
下記処方によって混合樹脂組成物の分散体を得た。
飽和鎖式炭化水素（Ａ）
低分子ポリエチレンワックス（融点１０２℃） １００部
（微粒子状ワックス：粒径３０μｍ以下）
アクリル系樹脂（Ｂ）溶液
パラクロン ＡＳ−３０００Ｅ（固形分３０％） ５０部
（根上工業株式会社製）
シリコン系樹脂（Ｃ）溶液
パラクロン ＰＥ−３０（（固形分３０％） ３００部
（根上工業株式会社製）
架橋剤成分
コロネート ＨＬ ５部
（日本ポリウレタン工業株式会社製）
上記、配合樹脂組成物にトルエンを適量添加して、樹脂分散体粘度を約４０００ｃｐｓ（２５℃）に調整した。
【００２７】
実施例１
布帛−１に処方−３の樹脂分散体をナイフコーターを用いて塗布速度２５ｍ／分、塗布量２６ｇ／ｍ２（Ｗｅｔ）の条件にて均一に塗布後、温度１３０℃で１分間乾燥を行い、次いで温度１５０℃で３分間の条件で加熱処理をして撥水加工布帛を得た。撥水加工布帛の物性は表１に示した様に、撥水性は良好であり、また繰り返し洗濯における撥水性能の低下やクラック模様の再現性低下が極めて少ない撥水加工布帛であった。
【００２８】
実施例２
布帛−２に処方−２の樹脂分散体をナイフコーターを用いて塗布速度２５ｍ／分、塗布量２３ｇ／ｍ２（Ｗｅｔ）の条件にて均一に塗布後、温度１３０℃で１分間乾燥を行い、次いで温度１５０℃で３分間の条件で加熱処理をして撥水加工布帛を得た。撥水加工布帛の物性は表１に示した様に、撥水性は良好であり、また繰り返し洗濯における撥水性能の低下やクラック模様の再現性低下が極めて少ない撥水加工布帛であった。
【００２９】
実施例３
布帛−２に処方−３の樹脂分散体をナイフコーターを用いて塗布速度２５ｍ／分、塗布量２５ｇ／ｍ２（Ｗｅｔ）の条件にて均一に塗布し、温度１３０℃で１分間乾燥を行い、次いで温度１５０℃で３分間の条件で加熱処理をして撥水加工布帛を得た。撥水加工布帛の物性は表１に示した様に、撥水性は良好であり、また繰り返し洗濯における撥水性能の低下やクラック模様の再現性低下が極めて少ない撥水加工布帛であった。
【００３０】
実施例４
布帛−２に処方−４の樹脂分散体をナイフコーターを用いて塗布速度２５ｍ／分、塗布量２１ｇ／ｍ２（Ｗｅｔ）の条件にて均一に塗布し、温度１３０℃で１分間乾燥を行い、次いで温度１５０℃で３分間の条件で加熱処理をして撥水加工布帛を得た。撥水加工布帛の物性は表１に示した様に、撥水性は良好であり、また繰り返し洗濯における撥水性能の低下やクラック模様の再現性低下が極めて少ない撥水加工布帛であった。
【００３１】
実施例５
布帛−３に処方−３の樹脂分散体をナイフコーターを用いて塗布速度２５ｍ／分、塗布量３０ｇ／ｍ２（Ｗｅｔ）の条件にて均一に塗布し、温度１３０℃で１分間乾燥を行い、次いで温度１５０℃で３分間の条件で加熱処理をして撥水加工布帛を得た。撥水加工布帛の物性は表１に示した様に、撥水性は良好であり、また繰り返し洗濯における撥水性能の低下やクラック模様の再現性低下が極めて少ない撥水加工布帛であった。
【００３２】
比較例１
布帛−１に対して、下記処方の飽和鎖式炭化水素（Ａ）がエマルジョンタイプになった処理液をナイフコーターを用いて塗布速度２５ｍ／分、塗布量２５ｇ／ｍ２（Ｗｅｔ）の条件にて塗布し、温度１３０℃で１分間で乾燥を行い、次いで温度１５０℃で３分間条件で加熱処理をして撥水加工布帛を得た。以上の撥水加工布帛の物性は表１に示した様に、初期の撥水性は概ね良好で、クラック模様も発生したが、繰り返し洗濯によりクラック模様の状態は極端に弱くなると同時に撥水性能も低下した。
パラヂウム ＨＹ（パラフィン，ポリエチレンのエマルジョン） １００部
パラゾール ＧＨ（アクリル共重合物のエマルジョン） ２０部
パラゾール Ｖ−８（アクリル系増粘剤） ２部
（上記３点共，大原パラヂウム化学株式会社製）
上記、樹脂組成物にアンモニア水溶液（１０％）を適量添加して、樹脂分散体粘度を約５０００ｃｐｓ（２５℃）に調整した。
【００３３】
比較例２
布帛−２に対して、比較例１と同じ処理液を塗布しようとしたが、布帛が撥水性を示すために水溶液タイプの処理液が粒状になり均一に塗布することができなかった。このため、この後の評価は行わなかった。
【００３４】
比較例３
処方−３から処方−１の固形パラフィン分散体を除外した混合樹脂組成物にトルエンを適量添加して、樹脂溶液粘度を約５５００ｃｐｓ（２５℃）に調整した。布帛−１にこの樹脂溶液をナイフコーターを用いて塗布速度２５ｍ／分、塗布量２５ｇ／ｍ２（Ｗｅｔ）の条件にて均一に塗布し、温度１３０℃で１分間乾燥を行い、次いで温度１５０℃で３分間の条件で加熱処理をして撥水加工布帛を得た。以上の撥水加工布帛の物性は表１に示した様に、初期の撥水性は実施例１とほぼ同等であるが、クラック模様は全く発生しなかった。また繰り返し洗濯による撥水性能は本発明の撥水布帛に比べ劣るものであった。
【００３５】
実施例１〜５、比較例１，３で得られた撥水加工布帛の繰り返し洗濯による撥水性能評価とクラック模様の再現性評価結果を表１に示した。
【００３６】
【表１】
[Industrial application fields]
The present invention relates to a water-repellent fabric for clothing such as sportswear or casual wear and a method for producing the same, and more particularly, to a fabric made of synthetic fiber or natural fiber as a water-repellent resin as a water-repellent resin. It relates to the improvement of water-repellent processing mainly using hydrocarbon (A), and the water-repellent performance due to repeated washing and the reproducibility of the crack pattern that gives a feeling of old clothes are extremely small, and the water-repellent property has excellent washing durability. The present invention relates to a water-repellent fabric having water performance and the like, and a method for producing the fabric.
[0002]
[Prior art]
Conventionally, as a water-repellent processing method for a fiber fabric, a water-dispersed aqueous solution or an organic solvent solution such as a fluorine-based water repellent, a silicone-based water repellent, or a paraffin-based water repellent is applied or impregnated on the fiber fabric, followed by heat treatment. The method of doing is performed. Among the water repellents, a fabric processed with a paraffinic water repellent, which is a saturated chain hydrocarbon, has a peculiar crack pattern. This unique crack pattern is a wrinkle pattern that is slightly generated when a part of a water-repellent fabric is gripped by hand. Such a wrinkle pattern gives the fabric a feeling of old clothes. Widely used for clothing.
[0003]
However, the conventional paraffinic water repellent is in the form of an aqueous dispersion, and in the water repellent processing method using this, the initial water repellent performance is the use of a fluorine water repellent or a silicone water repellent. In addition to being slightly inferior to the case, there has been a drawback that repeated water washing results in a significant decrease in water repellency and a decrease in reproducibility of unique crack patterns.
The reduction in the reproducibility of the crack pattern here means that the appearance of the crack pattern, that is, the state of wrinkles, is weakened by repeated washing and becomes significantly different from the initial product.
[0004]
[Problems to be solved by the invention]
The object of the present invention is to provide water-repellent finishing mainly using saturated chain hydrocarbons (A), and even when worn for a long period of time, the water-repellent performance and crack pattern reproducibility are extremely low, and the washing durability is improved. An object of the present invention is to provide a water-repellent fabric that can provide excellent water-repellent performance and the like, and a method for producing the fabric.
[0005]
[Means for Solving the Problems]
As a result of intensive studies on a water-repellent fabric using saturated chain hydrocarbon (A) and a method for producing the same, the present inventors have found that 100 weight of saturated chain hydrocarbon (A) having a melting point of 30 ° C. to 150 ° C. 10 parts by weight of an acrylic resin (B) having a glass transition temperature of 30 ° C. or lower and a silicon resin (C) having a glass transition temperature of 30 ° C. or lower. Part of the resin composition (D) is added or impregnated onto the fabric in the form of an organic solvent solution or an organic solvent dispersion in which the saturated chain hydrocarbon (A) is in a dispersion state and other resin components are dissolved. After that, the temperature is equal to or higher than the melting point of the saturated chain hydrocarbon (A) and a temperature sufficient to form a film of the acrylic resin (B) or the acrylic resin (B) and the silicon resin (C). Heat treatment in time Excellent water-repellent fabric reproducibility of crack pattern and have reached the present invention found to be produced and having a crack pattern expressing by the.
[0006]
The saturated chain hydrocarbon (A) in the present invention can be represented by the general formula C n H 2n + 2 , where n is a value corresponding to a melting point of the hydrocarbon of 30 ° C. to 150 ° C. Any material that satisfies this requirement can be used, such as solid paraffin, low molecular polyethylene and low molecular polypropylene alone, or a copolymer mainly composed of low molecular polyethylene or low molecular polypropylene. it can. These compounds may be used alone or in combination of two or more.
[0007]
The saturated chain hydrocarbon (A) may be used in the form of a lump or powder at room temperature. For example, if the particle size is about 100 μm or less, it can be used as it is, but if it is more than that, it can be used in the form of a paste by the following method. In order to form a paste, a solvent having a boiling point equal to or higher than the melting point of the saturated chain hydrocarbon (A) and a poor solvent of the saturated chain hydrocarbon (A) after being completely dissolved at a temperature equal to or higher than the melting point. Is added while the mixture is gradually stirred and cooled to precipitate fine chain hydrocarbon (A), and a paste containing a solvent is obtained. The amount of the solvent to be added is preferably 50 to 200% by weight with respect to the saturated chain hydrocarbon (A).
[0008]
The acrylic resin (B) and the silicon resin (C) in the present invention are appropriately selected as long as the glass transition temperature of each resin is 30 ° C. or less, and the resin film is flexible and does not impair the texture of the fiber fabric. Commercially available acrylic resins and silicon resins can be used. The acrylic resin (B) or a mixed system of the acrylic resin (B) and the silicon resin (C) is suitable for the resin type for the purpose of improving the strength of the resin film alone or the peel strength from the fiber fabric. A cross-linking agent can be added. As the solvent for these resins, aromatic solvents, ketone solvents, ester solvents, alcohol solvents, chlorine-containing solvents, and the like can be used.
The amount of acrylic resin (B) or acrylic resin (B) and silicon resin (C) added is 10 to 600 parts by weight, more preferably 20 parts per 100 parts by weight of saturated chain hydrocarbon (A). -300 parts by weight. These resins may be used alone or in combination of two or more. Moreover, when using together, there is no restriction | limiting in particular also regarding the ratio of each resin.
[0009]
In the resin composition (D) comprising the saturated chain hydrocarbon (A) and the acrylic resin (B) or the saturated chain hydrocarbon (A), the acrylic resin (B), and the silicon resin (C) in the present invention. Can add a fluorine-type water repellent (E) as needed.
A typical example of the fluorine-based water repellent (E) in the present invention is a fluorine-containing copolymer having a fluorocarbon group in its side chain, and the water repellent (E) contains 5 fluorine atoms. % By weight or more, more preferably 10% by weight or more. As a method for measuring the fluorine atom content, there is a method in which a certain amount of sample is burned using a combustion flask apparatus, and then the absorption liquid is subjected to ion chromatography analysis. The addition amount is 0.1 to 20 parts by weight, more preferably 0.5 to 10 parts by weight with respect to 100 parts by weight of the resin composition (D). The contribution is not sufficient, and when it is 10 parts by weight or more, the texture hardening and the resin film strength are lowered. If sufficient durable water repellency can be obtained only with the resin composition (D), it is not necessary to add the fluorine-based water repellent (E).
[0010]
To the resin composition (D) obtained by mixing the resin, titanium oxide, a coloring pigment, or the like may be added as necessary. Further, when applying, a uniform organic solvent using at least one kind of solvent used as a solvent for acrylic resin (B) and / or silicon resin (C) or fluorine-based water repellent (E) It can be set as a solution, or it can be set as the organic solvent dispersion in which only the saturated chain type hydrocarbon (A) became the dispersion state. The viscosity of the resin composition (D) solution and the resin solid content are used in the range of 50 to 40,000 centipoise (cps), more preferably 200 to 20000 cps and 3 to 50% by weight at 25 ° C., respectively.
[0011]
Examples of the fabric in the present invention include woven fabrics, knitted fabrics, and non-woven fabrics. The constituent fiber materials include natural fibers such as cotton, hemp, wool, and silk, and fibers such as synthetic fibers such as nylon, polyester, polyurethane, and acrylic. They can be used, and may be a blended or mixed product of them. In addition, if the cloth is subjected to a normal water-repellent process such as an aqueous system as a pretreatment before the coating process, the acrylic resin (B) and / or the silicon resin (C) penetrates deeply into the fabric. This is effective in softening the texture. Even in this case, since the saturated chain hydrocarbon (A) penetrates into the fabric, the phenomenon of generation of the crack pattern is equivalent to the case where the water-repellent processing is not performed.
[0012]
As a coating method in the present invention, when the coating solution is a dispersion of saturated chain hydrocarbon (A), known coating methods such as roll coating, reverse roll coating, knife coating, die coating, gravure roll coating, dip coating, etc. Can be applied. In addition, when the coating solution is in a solution state, a coating method such as shower coating, spray coating, or screen coating can be used. The heat treatment conditions are a temperature higher than the melting point of the saturated chain hydrocarbon (A) and a temperature and a heating time sufficient for the acrylic resin (B) and / or the silicon resin (C) to form a film. is there. These conditions can be appropriately determined according to the resin component used. Generally, a temperature and time of 100 ° C. or more and 1 minute or more are used. The initial performance can be obtained by applying the resin composition (D) applied by the application method in the range of 1 to 35 g / m 2 , preferably 3 to 20 g / m 2 .
[0013]
In using the water-repellent fabric coated only on one side according to the present invention as a garment, there are a case where the coated surface is used as a surface and a case where an uncoated surface is used as the surface. Basically, it is used in the former, or the saturated chain hydrocarbon (A) penetrates into the fabric, so that it can be used in the latter. However, in this case, the water repellency durability is inferior to the former.
[0014]
【The invention's effect】
In the conventional water repellent processing method using a paraffinic water repellent, the initial water repellent performance may be slightly inferior to that of a fluorinated water repellent or a silicone water repellent. The durability of water performance was insufficient, and the reproducibility of the unique crack pattern was remarkably reduced. It is possible to obtain a water-repellent fabric that is extremely less deteriorated and excellent in washing durability and water repellency.
[0015]
Hereinafter, the present invention will be described with reference to examples. In the examples, “parts” and “%” indicate “parts by weight” and “% by weight”, respectively.
[0016]
【Example】
1) Evaluation method The present invention will be described more specifically by way of examples. The performance of the fabrics in the examples was evaluated by the following methods.
[0017]
{Circle around (1)} Water Repellency Evaluation: According to JIS L-1092 (spray method), the mixed resin composition coated surface of the water repellent fabric was evaluated.
<Evaluation criteria>
Score Fabric surface condition 100: No adhesion on the surface 90: Exhibit slight adhesion on the surface 80: Partially wet on the surface 70: Exhibit wet on the surface 50: Exhaust on the entire surface What to indicate 0: Both front and back surfaces are completely wetted.
(2) Washing conditions The samples after 5 times, 10 times and 20 times of home washing (JIS L-0217, method 103) were evaluated.
[0019]
(3) Evaluation of reproducibility of crack pattern Based on the fabric immediately after processing, the strength of the crack pattern was evaluated by a handling test in which a part of the fabric was grasped by hand.
<Evaluation criteria>
○: No change (same as immediately after processing)
△ mark: About half of crack pattern generation immediately after processing × mark: Little crack pattern occurs [0020]
2) Fabric manufacturing fabric-1
Nylon 6 taffeta with warp density of 70 denier 48 filaments, weft 115 denier 72 filaments, warp density of 115 / inch, weft density of 74 / inch is refined, dyed (navy), dried by a usual method, and 1 at 170 ° C. Heat setting was performed for a minute to obtain a fabric (finished density: warp density 121 / inch, weft density 78 / inch).
[0021]
Fabric-2
Cloth-1 was immersed in a 5% aqueous solution of Asahi Guard AG-710 (manufactured by Asahi Glass Co., Ltd.), a fluorine-based water repellent emulsion, squeezed with a rubber roll (squeezing ratio 34%), dried, and then heat treated at 160 ° C. for 1 minute. A water repellent fabric was obtained.
[0022]
Fabric-3
Refining, cotton bleaching, dyeing (green) and drying of nylon / cotton tassers with warp density of 154 / inch and weft density of 58 / inch with warp 70 denier 48 tilament (nylon 6) and weft 30 count (cotton) , After heat setting at 170 ° C. for 1 minute, immersed in a 5% aqueous solution of Asahi Guard AG-310 (Asahi Glass Co., Ltd.), a fluorine-based water repellent emulsion, and then squeezed with a rubber roll (squeezing rate 38%) After drying, heat treatment was performed at 160 ° C. for 1 minute to obtain a water-repellent fabric (finished density: warp density 160 / inch, weft density 58 / inch).
[0023]
3) Prescription formulation-1
After 100 parts of solid paraffin (melting point 68 ° C.) is heated and dissolved at 100 ° C., 100 parts of toluene is added, and the solid paraffin precipitates into fine particles, and is cooled while gradually stirring to form a paste-like dispersion Got.
[0024]
Formula-2
A dispersion of the mixed resin composition was obtained by the following formulation.
200 parts of solid paraffin dispersion of dispersion formulation-1 of saturated chain hydrocarbon (A) (toluene solvent: solid content 50%)
Acrylic resin (B) solution Paraclone AS-3000E (solid content 30%) 200 parts (manufactured by Negami Kogyo Co., Ltd.)
Cross-linking agent component coronate HL 5 parts (manufactured by Nippon Polyurethane Industry Co., Ltd.)
Fluorine-based water repellent (E) solution Asahi Guard AG-5050 (solid content 20%) 10 parts (manufactured by Asahi Glass Co., Ltd.)
Asahi Guard AG-520N (solid content 15%) 20 parts (Asahi Glass Co., Ltd.)
An appropriate amount of toluene was added to the above blended resin composition to adjust the resin dispersion viscosity to about 5500 cps (25 ° C.).
[0025]
Formula 3
A dispersion of the mixed resin composition was obtained by the following formulation.
200 parts of solid paraffin dispersion of dispersion formulation-1 of saturated chain hydrocarbon (A) (toluene solvent: solid content 50%)
Acrylic resin (B) solution Paracron AS-3000E (solid content 30%) 75 parts (manufactured by Negami Kogyo Co., Ltd.)
Silicon resin (C) solution Paracron PE-30 ((solid content 30%) 125 parts (manufactured by Negami Industrial Co., Ltd.)
Cross-linking agent component coronate HL 4 parts (manufactured by Nippon Polyurethane Industry Co., Ltd.)
Fluorine-based water repellent (E) solution Asahi Guard AG-5050 (solid content 20%) 16 parts (Asahi Glass Co., Ltd.)
An appropriate amount of toluene was added to the above blended resin composition to adjust the resin dispersion viscosity to about 5500 cps (25 ° C.).
[0026]
Formula 4
A dispersion of the mixed resin composition was obtained by the following formulation.
Saturated chain hydrocarbon (A)
Low molecular weight polyethylene wax (melting point: 102 ° C.) 100 parts (particulate wax: particle size of 30 μm or less)
Acrylic resin (B) solution Paracron AS-3000E (solid content 30%) 50 parts (manufactured by Negami Industrial Co., Ltd.)
Silicon resin (C) solution Paracron PE-30 ((solid content 30%) 300 parts (manufactured by Negami Kogyo Co., Ltd.)
Cross-linking agent component coronate HL 5 parts (manufactured by Nippon Polyurethane Industry Co., Ltd.)
An appropriate amount of toluene was added to the above blended resin composition to adjust the resin dispersion viscosity to about 4000 cps (25 ° C.).
[0027]
Example 1
The resin dispersion of prescription-3 is applied uniformly to fabric-1 using a knife coater at a coating speed of 25 m / min and a coating amount of 26 g / m 2 (Wet), followed by drying at a temperature of 130 ° C. for 1 minute. Subsequently, heat treatment was performed at a temperature of 150 ° C. for 3 minutes to obtain a water-repellent fabric. As shown in Table 1, the water-repellent fabric had good water repellency, and was a water-repellent fabric that had very little deterioration in water repellency and repeated reproducibility of crack patterns in repeated washing.
[0028]
Example 2
After applying the resin dispersion of prescription-2 to fabric-2 uniformly using a knife coater under the conditions of an application rate of 25 m / min and an application amount of 23 g / m 2 (Wet), drying is performed at a temperature of 130 ° C. for 1 minute. Subsequently, heat treatment was performed at a temperature of 150 ° C. for 3 minutes to obtain a water-repellent fabric. As shown in Table 1, the water-repellent fabric had good water repellency, and was a water-repellent fabric that had very little deterioration in water repellency and repeated reproducibility of crack patterns in repeated washing.
[0029]
Example 3
The resin dispersion of prescription-3 is applied uniformly to fabric-2 using a knife coater at a coating speed of 25 m / min and a coating amount of 25 g / m 2 (Wet), and dried at a temperature of 130 ° C. for 1 minute. Subsequently, heat treatment was performed at a temperature of 150 ° C. for 3 minutes to obtain a water-repellent fabric. As shown in Table 1, the water-repellent fabric had good water repellency, and was a water-repellent fabric that had very little deterioration in water repellency and repeated reproducibility of crack patterns in repeated washing.
[0030]
Example 4
The resin dispersion of formulation-4 is applied uniformly to fabric-2 using a knife coater at a coating speed of 25 m / min and a coating amount of 21 g / m 2 (Wet), and dried at a temperature of 130 ° C. for 1 minute. Subsequently, heat treatment was performed at a temperature of 150 ° C. for 3 minutes to obtain a water-repellent fabric. As shown in Table 1, the water-repellent fabric had good water repellency, and was a water-repellent fabric that had very little deterioration in water repellency and repeated reproducibility of crack patterns in repeated washing.
[0031]
Example 5
The resin dispersion of prescription-3 is uniformly applied to fabric-3 using a knife coater under conditions of an application rate of 25 m / min and an application amount of 30 g / m 2 (Wet), and dried at a temperature of 130 ° C. for 1 minute. Subsequently, heat treatment was performed at a temperature of 150 ° C. for 3 minutes to obtain a water-repellent fabric. As shown in Table 1, the water-repellent fabric had good water repellency, and was a water-repellent fabric that had very little deterioration in water repellency and repeated reproducibility of crack patterns in repeated washing.
[0032]
Comparative Example 1
A treatment liquid in which the saturated chain hydrocarbon (A) having the following formulation is an emulsion type is applied to the fabric-1 using a knife coater under a coating speed of 25 m / min and a coating amount of 25 g / m 2 (Wet). And then dried at a temperature of 130 ° C. for 1 minute, and then heat-treated at a temperature of 150 ° C. for 3 minutes to obtain a water-repellent fabric. As shown in Table 1, the properties of the above water-repellent fabrics were generally good in initial water repellency and crack patterns were generated. Declined.
Palladium HY (Emulsion of paraffin and polyethylene) 100 parts Parazole GH (Emulsion of acrylic copolymer) 20 parts Parazole V-8 (acrylic thickener) 2 parts (all three above, manufactured by Ohara Palladium Chemical Co., Ltd.)
An appropriate amount of aqueous ammonia solution (10%) was added to the resin composition to adjust the resin dispersion viscosity to about 5000 cps (25 ° C.).
[0033]
Comparative Example 2
An attempt was made to apply the same treatment liquid as in Comparative Example 1 to Fabric-2. However, since the fabric exhibited water repellency, the aqueous solution-type treatment liquid became granular and could not be applied uniformly. For this reason, subsequent evaluation was not performed.
[0034]
Comparative Example 3
An appropriate amount of toluene was added to the mixed resin composition excluding the solid paraffin dispersions of Formulation-1 to Formulation-1 to adjust the resin solution viscosity to about 5500 cps (25 ° C.). The resin solution is uniformly applied to Fabric-1 using a knife coater under the conditions of an application rate of 25 m / min and an application amount of 25 g / m 2 (Wet), dried at 130 ° C. for 1 minute, and then at a temperature of 150 A water-repellent fabric was obtained by heat treatment at 3 ° C. for 3 minutes. As shown in Table 1, the properties of the water-repellent fabric described above were substantially equal to those of Example 1 in the initial water repellency, but no crack pattern was generated. Moreover, the water-repellent performance by repeated washing was inferior to the water-repellent fabric of the present invention.
[0035]
Table 1 shows the results of evaluating the water repellency by repeatedly washing the water repellent fabric obtained in Examples 1 to 5 and Comparative Examples 1 and 3, and the evaluation of the reproducibility of crack patterns.
[0036]
[Table 1]
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17009195A JP3631810B2 (en) | 1995-06-02 | 1995-06-02 | Water repellent fabric and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17009195A JP3631810B2 (en) | 1995-06-02 | 1995-06-02 | Water repellent fabric and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08325933A JPH08325933A (en) | 1996-12-10 |
| JP3631810B2 true JP3631810B2 (en) | 2005-03-23 |
Family
ID=15898487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17009195A Expired - Lifetime JP3631810B2 (en) | 1995-06-02 | 1995-06-02 | Water repellent fabric and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3631810B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10105234A1 (en) * | 2001-02-02 | 2002-08-29 | Schoeller Textil Ag Sevelen | Textile surface |
| JP6224487B2 (en) * | 2014-03-03 | 2017-11-01 | 帝人フロンティア株式会社 | Water-repellent fabric and method for producing the same |
| TWI686439B (en) | 2014-07-04 | 2020-03-01 | 瑞士商亞克羅瑪智財公司 | Fluorine-free water-repellent composition |
-
1995
- 1995-06-02 JP JP17009195A patent/JP3631810B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08325933A (en) | 1996-12-10 |
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