JP5670322B2 - 水蒸気透過性のプラスチック箔を含む多層複合材料、その製造方法、その利用方法 - Google Patents
水蒸気透過性のプラスチック箔を含む多層複合材料、その製造方法、その利用方法 Download PDFInfo
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Description
(A)水蒸気透過性のプラスチック箔と、
(B)必要に応じて少なくとも一種の接着層と
(C)ポリウレタン層の厚み全体を貫通する毛細管を有するポリウレタン層とを有成分として含む多層複合材料に関する。
(A)水蒸気透過性のプラスチック箔と、
(B)必要に応じて少なくとも一種の接着層と
(C)ポリウレタン層の厚み全体を貫通する毛細管を有するポリウレタン層とを成分として有する。
ポリウレタン水分散液を前もって加熱された型に塗布し、水を蒸着させ、次いで得られるポリウレタンフィルム(C)を箔(A)に転写する。
1)適当なら添加物及び/又は副原料を含む液体バインダーを、模様がもつ表面へ、例えば他の型またはオリジナルな模様へ塗布する工程と、
2)このバインダーを、例えば熱硬化、放射線硬化または養生により硬化させる工程と、
3)このように得られる型を分離し、適当ならそれを支持体に、例えば金属板または金属製シリンダに塗布する工程。
1)レーザー彫刻可能な層を、または支持体にレーザー彫刻可能な層を有する層複合物を提供する工程(ただし、このレーザー彫刻可能な層はバインダー、また好ましくは、添加物と副原料とを含んでいる)と、
2)このレーザー彫刻可能な層を、熱化学的に、光化学的にあるいは化学線により増幅する工程と、
3)レーザー彫刻可能な層に、表面構造を有する塗膜の表面構造に対応する表面構造をレーザーを用いて彫刻する工程。
(a)イソシアネート、好ましくはジイソシアネートと、
(b)通常分子量(Mw)が500〜10000g/molの範囲の、好ましくは500〜5000g/molの範囲、より好ましくは800〜3000g/molの範囲のイソシアネート反応性化合物と、
(c)分子量が50〜499g/molの範囲の鎖延長剤との間の、
適当なら
(d)触媒
(e)及び/又は副添加物材料の存在下での反応で製造される。
1,1−ジメチロールブタン酸、1,1−ジメチロールプロピオン酸または
AOはC2−C4−アルキレンオキシド、例えばブチレンオキシド、特にエチレンオキシド(CH2CH2O)、プロピレンオキシド(CH(CH3)CH2O)または(CH2CH(CH3)O)であり、
xは1〜50の整数、好ましくは5〜25の整数であり、
R6は、水素、およびC1−C30−アルキル、特にC1−C10−アルキル、例えばメチル、エチル、n−プロピル、イソプロピル、n−ブチル、イソブチル、sec−ブチル、tert−ブチル、n−ペンチル、イソペンチル、sec−ペンチル、ネオペンチル、1,2−ジメチルプロピル、イソアミル、n−ヘキシル、イソヘキシル、sec−ヘキシル、n−ヘプチル、n−オクチル、2−エチルヘキシル、n−ノニル、n−デシルから選ばれ、より好ましくはC1−C4−アルキル、例えばメチルや、エチル、n−プロピル、イソプロピル、n−ブチル、イソブチル、sec−ブチル、tert−ブチルから選ばれる。
合計20〜30質量%のポリウレタン(PU)、または合計20〜30質量%のポリウレタン(PU1)と(PU2)と、
1〜10%の、好ましくは2〜5質量%の硬化剤と、
1〜10質量%のシリコーン化合物(f)と、
0〜10%、好ましくは0.5〜5質量%のポリジアルキルシロキサン(g)とを含む。
10〜30質量%の軟質ポリウレタン(PU1)と
0〜20質量%の硬質ポリウレタン(PU2)とを含む。
I.1 ポリウレタン水分散液Disp.1の調整
以下のものを攪拌容器中で混合した。
7質量%の、ジイソシアネートとして重量比で13:10のヘキサメチレンジイソシアネート(a1.1)とイソホロンジイソシアネート(a1.2)と、ジオールとしてモル比で1:1:2のイソフタル酸、アジピン酸と1,4−ジヒドロキシメチルシクロヘキサン(異性体混合物)の重縮合で製造した、分子量Mwが800g/molのポリエステルジオール(b1.1)と5質量%の1,4−ブタンジオール(b1.2)と、3質量%のモノメチル化ポリエチレングリコール(c.1)と、3質量%のH2N−CH2CH2−NH−CH2CH2−COOHとから製造される軟質ポリウレタン(PU1.1)(%は、すべてポリエステルジオール(b1.1)に対する質量%、軟質ポリウレタン(PU1.1)の軟化点:62℃、軟化は55℃で開始、ショアA硬度:54)、を含む水分散液(粒子径:125nm,固体含量:40%)と、
65質量%の、イソホロンジイソシアネート(a1.2)、1,4−ブタンジオール、1,1−ジメチロールプロピオン酸、ヒドラジン水和物と、分子量Mwが4200g/mol、軟化点が195℃、ショアA硬度が86であるポリプロピレングリコールの反応で得られる硬質ポリウレタン(PU2.2)の水分散液(粒子径:150nm)と、
3.5質量%の化合物(V.1)の70質量%溶液(プロピレンカーボネート中)と、
2質量%のカーボンブラックと、
0.5質量%のポリウレタン系増粘剤と、
1質量%の、イソブタンを内蔵するポリ塩化ビニリデンマイクロバルーン(直径:20μm、(例えばアクゾノベルよりエキスパンセル(R)として市販)。
以下のものを攪拌容器中で混合した。
7質量%の、ジイソシアネートとして重量比で13:10のヘキサメチレンジイソシアネート(a1.1)とイソホロンジイソシアネート(a1.2)と、ジオールとしてモル比で1:1:2のイソフタル酸、アジピン酸と1,4−ジヒドロキシメチルシクロヘキサン(異性体混合物)の重縮合で製造した、分子量Mwが800g/molのポリエステルジオール(b1.1)と5質量%の1,4−ブタンジオール(b1.2)と、3質量%のモノメチル化ポリエチレングリコール(c.1)と、3質量%のH2N−CH2CH2−NH−CH2CH2−COOHとからせ製造される軟質ポリウレタン(PU1.1)(%は、すべてポリエステルジオール(b1.1)に対する質量%、軟質ポリウレタン(PU1.1)の軟化点:62℃、軟化は55℃で開始、ショアA硬度:54)と、
65質量%の、イソホロンジイソシアネート(a1.2)、1,4−ブタンジオール(b1.2)、1,1−ジメチロールプロピオン酸、ヒドラジン水和物と分子量Mwが4200g/molのポリプロピレングリコール(b1.3)との反応で得られる硬質ポリウレタン(PU2.2)、(軟化点:195℃、ショアA硬度:90)の水分散液と、
3.5質量%の、化合物(V.1)の70質量%溶液(プロピレンカーボネート中、NCO含量12%)と、
2質量%のカーボンブラック。
フルグレイン子牛皮革の模様を持つ表面の上に液体シリコーンを塗布した。ジ−n−ブチルビス(1−オキソネオデシルオキシ)スタナンのテトラエトキシシラン中25質量%溶液を酸性硬化剤として添加して、このシリコーンを硬化させ、厚みが2mmのシリコーンゴム層を形成し、これを型として用いた。この型を1.5mmの厚みのアルミニウム支持体上に貼り付けた。
IIの型を、加熱可能な面上におき、91℃に加熱した。その後、噴射ノズルからDisp.1を、88g/m2(湿重量)の量でその上に噴霧した。直径が0.46mmの噴射ノズル用いて65barの圧力で実施した塗布の間に、空気の混合はなかった。この後、91℃で表面のべとつきなくなるまで固化させた。
その後、型の上にポリウレタンフィルム(C.1)とともに存在している熱を保持したままの接着層(B.1)上に、噴霧後の銀面皮(D.1)を噴霧面側をこの接着層に向けて乗せて、プレス圧4barで110℃で15秒間圧縮した。この型を剥離して除いた。
Claims (16)
- (A)ドイツ工業規格DIN53333に準じて求められた水蒸気透過性が1.5mg/cm2hより大きなプラスチック箔と、
(B)必要に応じて少なくとも一種の接着層と、
(C)当該ポリウレタン層の厚み全体を貫通する、平均の直径が0.005〜0.05mmの範囲の毛細管を有するポリウレタン層とを成分として含み、
水蒸気透過性プラスチック箔(A)が、フッ素系高分子および化学変性ポリエステルの自己支持性フィルム/シートから選ばれ、その厚みが0.5μm〜0.5mmの範囲にあり、
ポリウレタン層(C)が模様を示し、その平均厚みが15〜300μmの範囲にあることを特徴とする多層複合材料。 - 前記接着層(B)が硬化した有機接着剤の層を含む請求項1に記載の多層複合材料。
- さらに皮、織物、紙、およびバット材料から選ばれる中間層(D)を有する請求項1又は2に記載多層複合材料。
- 前記ポリウレタン層(C)がベルベット状の外観を有する請求項1〜3のいずれか一項に記載多層複合材料。
- ベルベット状の外観の表面に、平均長が20〜500μmの範囲の短毛が、毛間の平均距離50〜350μmで形成されている請求項4に記載多層複合材料。
- 前記接着層(B)が硬化した有機接着剤の断続層を含む請求項1〜5のいずれか一項に記載多層複合材料。
- フッ素系高分子がポリテトラフルオロエチレンを含む請求項1〜6のいずれか一項に記載多層複合材料。
- 型を用いてポリウレタン層(C)を形成し、少なくとも一種の有機接着剤を均一または部分的にプラスチック箔(A)及び/又はポリウレタン層(C)に塗布し、ついでポリウレタン層(C)を、点状、線状、または面状に水蒸気透過性プラスチック箔(A)に貼り付けることからなる請求項1〜7のいずれか一項に記載多層複合材料の製造方法
- ポリウレタン層(C)がシリコーン型を用いて形成される請求項8に記載の方法。
- 前記シリコーン型がレーザー彫刻により構造化されたシリコーン型を含む請求項8または9に記載の方法。
- 前記型が、レーザーにより平均深さが50〜250μmの範囲にあり中心−中心間距離が50〜250μmの範囲にある窪みを形成して構造化される請求項8〜10のいずれか一項に記載の方法。
- プラスチック箔(A)と接着層(B)の間、接着層(B)とポリウレタン層(C)の間、または二枚の接着層(B)の間に中間層(D)が設置される請求項8〜11のいずれか一項に記載の方法。
- 請求項1〜7のいずれか一項に記載の多層複合材料の包装材として利用する方法。
- 請求項1〜7のいずれか一項に記載の多層複合材料からなる、あるいはそれを用いて得られる包装材料。
- 請求項1〜7のいずれか一項に記載の多層複合材料のアパレル製品の構成要素として利用する方法。
- 請求項1〜7のいずれか一項に記載の多層複合材料を用いて得られるアパレル製品。
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