MULTIFILAMENT YARN, AND KNIT/WOVEN FABRIC AND PROCESS FOR PRODUCING SAME

The present invention provides a multifilament yarn, knit/woven fabric, and a process for producing the knit/woven fabric, the multifilament yarn not only being capable of retaining the non-circular cross-sectional shape of the single fibers even under physical pressures in the steps of false-twisti...

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Main Authors NIWA, UJITERU, DATE, HIROAKI, JING, HONGCHUAN
Format Patent
LanguageEnglish
French
Japanese
Published 07.01.2016
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Abstract The present invention provides a multifilament yarn, knit/woven fabric, and a process for producing the knit/woven fabric, the multifilament yarn not only being capable of retaining the non-circular cross-sectional shape of the single fibers even under physical pressures in the steps of false-twisting, twisting, knitting/weaving, and dyeing but also giving fabric which has satisfactory appearance and other quality, is lightweight and highly bulky, and has excellent heat-insulating properties. This knit/woven fabric is produced by immersing knit/woven fabric configured using a crimped multifilament yarn composed of core-sheath-type composite single fibers, in an alkaline aqueous solution to dissolve away the cores, the cores comprising a polyester-based copolymer that readily dissolves away, the proportion of the composited cores being 30-70 mass% with respect to the sheaths, and the degree of non-circularity of the cross-section of the sheaths being 0.9-1.3. La présente invention concerne un fil multifilament, un textile tricoté/tissé, et un procédé de production du textile tricoté/tissé, le fil multifilament étant non seulement capable de maintenir la forme de section transversale non circulaire des fibres individuelles même sous la pression physique d'étapes de fausse torsion, de torsion, de tricotage/tissage et de teinture, mais aussi capable de produire un textile qui a un aspect et d'autres qualités satisfaisants, qui est léger et extrêmement volumineux, et qui présente d'excellentes propriétés d'isolation thermique. Ce textile tricoté/tissé est obtenu par immersion de textile tricoté/tissé produit en utilisant un fil multifilament frisé composé de fibres individuelles en composite de type à âme et gaine, dans une solution aqueuse alcaline pour dissoudre les âmes, les âmes comprenant un copolymère à base de polyester qui se dissout facilement, la proportion massique des âmes de composite étant de 30 à 70 % par rapport aux gaines, et le degré de non-circularité de la section transversale des gaines étant de 0,9 à 1,3.  本発明は、仮撚加工や撚糸加工および製編織や染色加工工程での物理的圧力によっても各単繊維の異形断面形状が維持できるとともに、生地品位と品質が良く、軽量で嵩高性に富み、更には保温性にも優れたマルチフィラメント糸と編織物およびその製造方法を提供する。本発明の編織物は、芯部分がポリエステル系易溶出共重合物からなり、鞘部分に対する芯部分の複合比率が30~70質量%であって、鞘部分の断面の異形度が0.9~1.3の芯鞘型複合単繊維からなるマルチフィラメント糸の捲縮加工糸を用いた編織物を、アルカリ性水溶液中に浸漬してその芯部分を溶出除去することにより製造される。
AbstractList The present invention provides a multifilament yarn, knit/woven fabric, and a process for producing the knit/woven fabric, the multifilament yarn not only being capable of retaining the non-circular cross-sectional shape of the single fibers even under physical pressures in the steps of false-twisting, twisting, knitting/weaving, and dyeing but also giving fabric which has satisfactory appearance and other quality, is lightweight and highly bulky, and has excellent heat-insulating properties. This knit/woven fabric is produced by immersing knit/woven fabric configured using a crimped multifilament yarn composed of core-sheath-type composite single fibers, in an alkaline aqueous solution to dissolve away the cores, the cores comprising a polyester-based copolymer that readily dissolves away, the proportion of the composited cores being 30-70 mass% with respect to the sheaths, and the degree of non-circularity of the cross-section of the sheaths being 0.9-1.3. La présente invention concerne un fil multifilament, un textile tricoté/tissé, et un procédé de production du textile tricoté/tissé, le fil multifilament étant non seulement capable de maintenir la forme de section transversale non circulaire des fibres individuelles même sous la pression physique d'étapes de fausse torsion, de torsion, de tricotage/tissage et de teinture, mais aussi capable de produire un textile qui a un aspect et d'autres qualités satisfaisants, qui est léger et extrêmement volumineux, et qui présente d'excellentes propriétés d'isolation thermique. Ce textile tricoté/tissé est obtenu par immersion de textile tricoté/tissé produit en utilisant un fil multifilament frisé composé de fibres individuelles en composite de type à âme et gaine, dans une solution aqueuse alcaline pour dissoudre les âmes, les âmes comprenant un copolymère à base de polyester qui se dissout facilement, la proportion massique des âmes de composite étant de 30 à 70 % par rapport aux gaines, et le degré de non-circularité de la section transversale des gaines étant de 0,9 à 1,3.  本発明は、仮撚加工や撚糸加工および製編織や染色加工工程での物理的圧力によっても各単繊維の異形断面形状が維持できるとともに、生地品位と品質が良く、軽量で嵩高性に富み、更には保温性にも優れたマルチフィラメント糸と編織物およびその製造方法を提供する。本発明の編織物は、芯部分がポリエステル系易溶出共重合物からなり、鞘部分に対する芯部分の複合比率が30~70質量%であって、鞘部分の断面の異形度が0.9~1.3の芯鞘型複合単繊維からなるマルチフィラメント糸の捲縮加工糸を用いた編織物を、アルカリ性水溶液中に浸漬してその芯部分を溶出除去することにより製造される。
Author NIWA, UJITERU
JING, HONGCHUAN
DATE, HIROAKI
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DocumentTitleAlternate FIL MULTIFILAMENT, ET TEXTILE TRICOTÉ/TISSÉ ET PROCÉDÉS DE PRODUCTION DE CEUX-CI
マルチフィラメント糸と編織物およびその製造方法
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RelatedCompanies TORAY INDUSTRIES, INC
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Snippet The present invention provides a multifilament yarn, knit/woven fabric, and a process for producing the knit/woven fabric, the multifilament yarn not only...
SourceID epo
SourceType Open Access Repository
SubjectTerms APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
LOOMS
METHODS OF WEAVING
NATURAL OR ARTIFICIAL THREADS OR FIBRES
SPINNING
TEXTILES
WEAVING
WOVEN FABRICS
Title MULTIFILAMENT YARN, AND KNIT/WOVEN FABRIC AND PROCESS FOR PRODUCING SAME
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