JPWO2017175632A1 - 布帛および多層構造布帛および繊維製品 - Google Patents
布帛および多層構造布帛および繊維製品 Download PDFInfo
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- JPWO2017175632A1 JPWO2017175632A1 JP2018510553A JP2018510553A JPWO2017175632A1 JP WO2017175632 A1 JPWO2017175632 A1 JP WO2017175632A1 JP 2018510553 A JP2018510553 A JP 2018510553A JP 2018510553 A JP2018510553 A JP 2018510553A JP WO2017175632 A1 JPWO2017175632 A1 JP WO2017175632A1
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Images
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Abstract
Description
乾熱収縮率(%)=((試験前の長さ(mm)―試験後の長さ(mm))/(試験前の長さ(mm))×100
熱収縮率差HAB(%)=(糸Aの乾熱収縮率(%))―(糸Bの乾熱収縮率(%))
また、前記の熱収縮率が大きい糸Aおよび/または熱収縮率が小さい糸Bが、メタ系アラミド繊維および/またはパラ系アラミド繊維を含むことが好ましい。また、前記の熱収縮率が大きい糸Aがメタ系アラミド繊維を50重量%以上含み、かつ熱収縮率が小さい糸Bがパラ系アラミド繊維を50重量%以上含むことが好ましい。また、300℃、5分間の乾熱処理を施したときの厚み差D(下記式)が1.3mm以上であることが好ましい。
厚み差D=(処理後の生地厚みd2)―(処理前の生地厚みd1)
また、温度300℃、5分間の乾熱処理を施すことにより、経方向または緯方向にストライプ状に連続している凹凸構造を発現することが好ましい。また、布帛の片面に透湿防水膜が積層されていることが好ましい。その際、前記の透湿防水膜が、フッ素系フィルムまたはポリウレタンフィルムまたはポリエチレンフィルムまたはポリエステルフィルムからなることが好ましい。
乾熱収縮率(%)=((試験前の長さ(mm)―試験後の長さ(mm))/(試験前の長さ(mm))×100
熱収縮率差HAB(%)=(糸Aの乾熱収縮率(%))―(糸Bの乾熱収縮率(%))
前記の熱収縮率が大きい糸Aと熱収縮率が小さい糸Bとしては、難燃性の点でともにアラミド繊維(全芳香族ポリアミド繊維)を含むことが好ましく、ともにアラミド繊維(全芳香族ポリアミド繊維)のみからなることがより好ましい。特に、熱収縮率が大きい糸Aが、メタ系アラミド繊維を50〜98重量%、パラ系アラミド繊維を2〜50重量%含むことが好ましい。また、熱収縮率が小さい糸Bが、パラ系アラミド繊維を50〜100重量%(より好ましくはパラ系アラミド繊維を80〜100重量%)、メタ系アラミド繊維を0〜50重量%含むことが好ましい。
ここで、Ar1はメタ配位または平行軸方向以外に結合基を有する2価の芳香族基である。
H2N−Ar2−Y−Ar2−NH2 ・・・式(3)
XOC−Ar3−COX ・・・式(4)
XOC−Ar3−Y−Ar3−COX ・・・式(5)
ここで、Ar2はAr1とは異なる2価の芳香族基、Ar3はAr1とは異なる2価の芳香族基、Yは酸素原子、硫黄原子、アルキレン基からなる群から選ばれる少なくとも1種の原子又は官能基であり、Xはハロゲン原子を表す。
生地厚み差D=(乾熱処理後の厚みd2)―(乾熱処理前の厚みd1)
また、布帛へのISO17492に規定される80kw/m2の火炎および熱暴露前/後の厚み差D(下記式)が0.1mm以上(より好ましくは1.3mm〜5.0mm、特に好ましくは2.0〜5.0mm)であることが好ましい。なお、本発明でいう厚みは、生地厚みと曝露後に膨らんだ空気層の和を示す。厚みを測定する際は、直径35mmの円形状の荷重を使用し、7g/cm2の圧力を加えるものとする。
生地厚み差D=(火炎および熱暴露後の厚み)―(火炎および熱暴露前の厚み)
本発明の布帛には布帛の片面に透湿防水膜が積層されていると、布帛に透湿防水効果が付加されるだけでなく、火炎または熱によって曝露された際、より大きな凹凸構造が発現し好ましい。その際、前記の透湿防水膜が、フッ素系フィルムまたはポリウレタンフィルムまたはポリエチレンフィルムまたはポリエステルフィルムからなることが好ましい。布帛との接着方法としては布帛片面へのラミネート加工が好ましい。
(1)乾熱収縮率
布帛から抜き出した糸10mmを450℃の電気炉に5分間入れ、下記式により乾熱収縮率を算出した。
乾熱収縮率(%)=((試験前の長さ(mm)―試験後の長さ(mm))/(試験前の長さ(mm))×100
(2)膨らみの測定
15cm×15cmの大きさにカットしたサンプルを、温度300℃の電気炉の中に5分間入れ、発現した凹凸構造の膨らみ度合い(生地厚み差D)を測定した。厚みを測定する際は、直径35mmの円形状の荷重を使用し、7g/cm2の圧を加えた。
生地厚み差D=(乾熱処理後の厚みd2)―(乾熱処理前の厚みd1)
(3)残炎時間
JIS L1091−1992 A−4法(12秒加熱法)に規定される燃焼測定で残炎時間を測定した。
(4)遮熱性
最外層・中間層・遮熱層を積層し、最外層側に、80kw/m2(ISO17492規定)曝露した。この際、布帛にセンサーを載せた。曝露後のTPP TIME(秒)を測定した。
メタ系アラミド繊維(MA)、パラ系アラミド繊維(PA)の各ステープルファイバー(いずれも繊維長は51mm)からなるMA/PA=95/5の重量比率で混紡した紡績糸40番手/双糸を経方向の糸、および緯方向の糸Aとし、PAのみからなる紡績糸40番手/双糸を緯方向の糸Bとし、20mm周期で緯方向の糸Aと緯方向の糸Bとを入れ替え、レピア織機で目付け70g/m2の織物(平織組織)を製織した。その後、常法の精錬を行い、メタ系アラミド繊維を染色した後に熱セットし、布帛を得た。
メタ系アラミド繊維(MA)、パラ系アラミド繊維(PA)の各ステープルファイバー(いずれも繊維長は51mm)からなるMA/PA=95/5の重量比率で混紡した紡績糸40番手/双糸を経糸、および緯糸Aとし、PAのみからなる紡績糸40番手/双糸を緯糸Bとし、10mm周期で緯糸Aと緯糸Bとを入れ替え、レピア織機で70g/m2の織物(平織組織)を製織した。その後、常法の精錬を行い、メタ系アラミド繊維を染色した後に熱セットし、布帛を得た。
メタ系アラミド繊維(MA)、パラ系アラミド繊維(PA)の各ステープルファイバー(いずれも繊維長は51mm)からなるMA/PA=95/5の重量比率で混紡した紡績糸40番手/双糸を経方向の糸、および緯方向の糸Aとし、PAのみからなる紡績糸40番手/双糸を緯方向の糸Bとし、20mm周期で緯方向の糸Aと緯方向の糸Bとを入れ替え、レピア織機で目付け70g/m2の織物(平織組織)を製織した。その後、常法の精錬を行い、メタ系アラミド繊維を染色した後に熱セットし、布帛を得た。
メタ系アラミド繊維(MA)、パラ系アラミド繊維(PA)の各ステープルファイバー(いずれも繊維長は51mm)からなるMA/PA=95/5の重量比率で混紡した紡績糸40番手/双糸を経糸、および緯糸Aとし、PAのみからなる紡績糸40番手/双糸を緯糸Bとし、10mm周期で緯糸Aと緯糸Bとを入れ替え、レピア織機で70g/m2の織物(平織組織)を製織した。その後、常法の精錬を行い、メタ系アラミド繊維を染色した後に熱セットし、布帛を得た。
実施例1において、メタ系アラミド繊維(MA)、パラ系アラミド繊維(PA)の各ステープルファイバー(いずれも繊維長は51mm)からなるMA/PA=95/5の重量比率で混紡した紡績糸40番手/双糸を経糸A、および緯糸Aとし、PAのみからなる紡績糸40番手/双糸を経糸B、緯糸Bとし、20mm周期で緯糸Aと緯糸Bとを入れ替えかつ20mm周期で経糸Aと経糸Bとを入れ替え、目付け70g/m2の織物(平織組織)を製織し、これ以外は実施例1と同様に布帛を得た。
MA/PA=95/5の重量比率で混紡した紡績糸40番手/双糸を経糸および緯糸に用い、目付け70g/m2の織物(平織組織)を製織した。その後、常法の精錬を行い、メタ系アラミド繊維を染色した後に熱セットし、布帛を得た。
MA/PA=95/5の重量比率で混紡した紡績糸40番手/双糸を経糸および緯糸に用い、目付け70g/m2の織物(平織組織)を製織した。その後、常法の精錬を行い、メタ系アラミド繊維を染色した後に熱セットし、布帛を得た。前記MA/PA紡績糸の乾熱収縮率は30%であった。
2−1、2−2 熱収縮率が大きい糸Aが配された箇所
Claims (14)
- 経方向または緯方向において熱収縮率が大きい糸Aと熱収縮率が小さい糸Bとが、交互に配されてなることを特徴とする布帛。
- JIS L1091−1992 A−4法(12秒加熱法)に規定される燃焼測定において残炎時間が2.0秒以下である、請求項1に記載の布帛。
- 経方向または緯方向において熱収縮率が大きい糸Aと熱収縮率が小さい糸Bとが、2〜100mmの間隔で交互に配されてなる、請求項1または請求項2に記載の布帛。
- 前記の熱収縮率が大きい糸Aおよび/または熱収縮率が小さい糸Bが、紡績糸またはフィラメントである、請求項1〜3のいずれかに記載の布帛。
- 前記の熱収縮率が大きい糸Aと熱収縮率が小さい糸Bとの乾熱収縮率の差HABが10%以上である、請求項1〜4のいずれかにに記載の布帛。
乾熱収縮率(%)=((試験前の長さ(mm)―試験後の長さ(mm))/(試験前の長さ(mm))×100
熱収縮率差HAB(%)=(糸Aの乾熱収縮率(%))―(糸Bの乾熱収縮率(%)) - 前記の熱収縮率が大きい糸Aおよび/または熱収縮率が小さい糸Bが、メタ系アラミド繊維および/またはパラ系アラミド繊維を含む、請求項1〜5のいずれかに記載の布帛。
- 前記の熱収縮率が大きい糸Aがメタ系アラミド繊維を50重量%以上含み、かつ熱収縮率が小さい糸Bがパラ系アラミド繊維を50重量%以上含む、請求項1〜6のいずれかに記載の布帛。
- 300℃、5分間の乾熱処理を施したときの厚み差D(下記式)が1.3mm以上である、請求項1〜7のいずれかに記載の布帛。
厚み差D=(処理後の生地厚みd2)―(処理前の生地厚みd1) - 温度300℃、5分間の乾熱処理を施すことにより、経方向または緯方向にストライプ状に連続している凹凸構造を発現する、請求項1〜8のいずれかに記載の布帛。
- 布帛の片面に透湿防水膜が積層されている、請求項1〜9のいずれかに記載の布帛。
- 前記の透湿防水膜が、フッ素系フィルムまたはポリウレタンフィルムまたはポリエチレンフィルムまたはポリエステルフィルムからなる、請求項10に記載の布帛。
- 請求項1〜11のいずれかに記載の布帛を中間層に配し、該中間層に最外層および最内層を積層してなる多層構造布帛。
- 遮熱性(ISO17492)がTPP TIMEで3秒以上である、請求項12に記載の多層構造布帛。
- 請求項1〜11のいずれかに記載の布帛、または請求項12もしくは請求項13に記載の多層構造布帛を用いてなる、防護服、消防防火服、消防活動服、救助服、ワークウェア、警察制服、自衛隊衣類からなる群より選択されるいずれかの繊維製品。
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CN108882760A (zh) | 2018-11-23 |
US11160320B2 (en) | 2021-11-02 |
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WO2017175632A1 (ja) | 2017-10-12 |
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