JP2006507417A5 - - Google Patents

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JP2006507417A5
JP2006507417A5 JP2004554031A JP2004554031A JP2006507417A5 JP 2006507417 A5 JP2006507417 A5 JP 2006507417A5 JP 2004554031 A JP2004554031 A JP 2004554031A JP 2004554031 A JP2004554031 A JP 2004554031A JP 2006507417 A5 JP2006507417 A5 JP 2006507417A5
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JP
Japan
Prior art keywords
fibers
constraining
range
nonwoven fabric
crystalline polyester
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JP2004554031A
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Japanese (ja)
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JP4520859B2 (en
JP2006507417A (en
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Priority claimed from PCT/US2003/037672 external-priority patent/WO2004046442A1/en
Publication of JP2006507417A publication Critical patent/JP2006507417A/en
Publication of JP2006507417A5 publication Critical patent/JP2006507417A5/ja
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Publication of JP4520859B2 publication Critical patent/JP4520859B2/en
Anticipated expiration legal-status Critical
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第１結晶性ポリエステル成分と第２結晶性ポリエステル成分とを含む複数の交絡した螺旋状に捲縮した非対称複合繊維を含む不織布であって、前記第１結晶性ポリエステル成分が前記第２結晶性ポリエステル成分より遅い結晶化速度を示し、前記繊維が０．５〜６デニールのデニール範囲によって特徴づけられ、前記繊維が０．２ｍｍ以下の捲縮曲率半径を持つ、少なくともセンチメートル当たり１９．７捲縮（インチ当たり５０捲縮）を示し、かつ、前記繊維が主に互いに交絡し、かつ、さらに前記繊維がはっきりと画定された平面に主に配向されており、前記不織布が０．２〜０．４ｇ／ｃｍ3の嵩密度によって特徴づけられることを特徴とする不織布。 A non-woven fabric comprising a plurality of entangled helically crimped asymmetric composite fibers comprising a first crystalline polyester component and a second crystalline polyester component, wherein the first crystalline polyester component is the second crystalline polyester At least 19.7 crimps per centimeter, exhibiting a slower crystallization rate than the component, the fibers are characterized by a denier range of 0.5-6 denier, and the fibers have a crimp radius of curvature of 0.2 mm or less (50 crimps per inch), the fibers are mainly entangled with each other, and the fibers are mainly oriented in a well-defined plane, and the nonwoven fabric is 0.2-0. nonwoven fabric characterized in that it is characterized by a bulk density of 4g / cm 3. 範囲６０：４０〜４０：６０の濃度比でポリエチレンテレフタレートとポリプロピレンテレフタレートとを含む、０．５〜６デニールの範囲および２０〜２５ミリメートルの範囲の未捲縮長さの複数の交絡した螺旋状に捲縮したサイドバイサイド型複合ステープルファイバーを含む不織布であって、前記繊維が０．２ｍｍ以下の捲縮曲率半径を持つ、少なくともセンチメートル当たり１９．７捲縮（インチ当たり５０捲縮）を示し、かつ、前記繊維が主に互いに交絡し、かつ、さらに前記繊維がはっきりと画定された平面に主に配向されており、０．２〜０．４ｇ／ｃｍ3の嵩密度、１．２〜１２ＭＰａの初期ヤング率、および１５０％までの極限伸びによって特徴づけられることを特徴とする不織布。 In a plurality of interlaced spirals of polyethylene terephthalate and polypropylene terephthalate in a concentration ratio in the range of 60:40 to 40:60, with an uncrimp length in the range of 0.5-6 denier and in the range of 20-25 millimeters A nonwoven comprising crimped side-by-side composite staple fibers, wherein the fibers have a crimp radius of curvature of 0.2 mm or less and exhibit at least 19.7 crimps per centimeter (50 crimps per inch); The fibers are mainly entangled with each other, and the fibers are mainly oriented in a clearly defined plane, with a bulk density of 0.2-0.4 g / cm 3 , 1.2-12 MPa Nonwoven fabric characterized by an initial Young's modulus and an ultimate elongation up to 150%. 潜在捲縮性を有する複数の非対称複合繊維を、オーバーラップする繊維の平面アレーに配置する工程であって、前記繊維がその平面に主に配向され、前記平面アレーを２つの制約面間に配置する工程と、加熱の少なくとも一部の間に、前記不織構造物が前記制約面と制約接触しているという条件で前記平面アレーを加熱して前記潜在捲縮性の少なくとも一部を発現させる工程とを含むことを特徴とする不織布の形成方法。   Arranging a plurality of asymmetric composite fibers having latent crimpability in a planar array of overlapping fibers, wherein the fibers are primarily oriented in that plane and the planar array is disposed between two constraining surfaces And at least a part of heating, the planar array is heated under the condition that the nonwoven structure is in constraining contact with the constraining surface to develop at least a part of the latent crimpability. A process for forming a nonwoven fabric comprising the steps of: ７０〜８０％の潜在捲縮収縮、長さ２０〜２５ミリメートルを有するサイドバイサイド型未捲縮ステープル複合繊維の水性スラリーから繊維マット・プリフォームを形成し、前記繊維マット・プリフォームを２つの制約面間に配置する工程と、加熱の少なくとも一部の間に、前記繊維マット・プリフォームが前記制約面と制約接触しているという条件で前記平面アレーを加熱して前記潜在捲縮性の少なくとも一部を発現させる工程とを含む不織布の形成方法であって、前記複合繊維がポリエチレンテレフタレートとポリプロピレンテレフタレートとを６０：４０〜４０：６０の範囲のそれぞれの濃度比で含むことを特徴とする方法。   A fiber mat preform is formed from an aqueous slurry of side-by-side uncrimped staple composite fibers having a latent crimp shrinkage of 70-80% and a length of 20-25 millimeters, and the fiber mat preform has two constraining surfaces. At least one of the latent crimpability by heating the planar array on the condition that the fiber mat preform is in constraining contact with the constraining surface during at least a portion of the heating. A method of forming a nonwoven fabric, wherein the composite fiber contains polyethylene terephthalate and polypropylene terephthalate in respective concentration ratios in the range of 60:40 to 40:60.
JP2004554031A 2002-11-21 2003-11-21 High stretch recovery nonwoven fabric and manufacturing method Expired - Fee Related JP4520859B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42799902P 2002-11-21 2002-11-21
PCT/US2003/037672 WO2004046442A1 (en) 2002-11-21 2003-11-21 High stretch recovery non-woven fabric and process for preparing

Publications (3)

Publication Number Publication Date
JP2006507417A JP2006507417A (en) 2006-03-02
JP2006507417A5 true JP2006507417A5 (en) 2006-12-07
JP4520859B2 JP4520859B2 (en) 2010-08-11

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JP2004554031A Expired - Fee Related JP4520859B2 (en) 2002-11-21 2003-11-21 High stretch recovery nonwoven fabric and manufacturing method

Country Status (10)

Country Link
US (1) US20040116027A1 (en)
EP (1) EP1567700B1 (en)
JP (1) JP4520859B2 (en)
KR (1) KR101065094B1 (en)
CN (1) CN100430546C (en)
AU (1) AU2003302048A1 (en)
BR (1) BR0315715B8 (en)
DE (1) DE60317094T2 (en)
HK (1) HK1086868A1 (en)
WO (1) WO2004046442A1 (en)

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