CRIMPED YARN, EXTRA-FINE DEEPLY DYEABLE YARN, CHAMOIS-LIKE WOVEN FABRIC INCLUDING EXTRA-FINE DEEPLY DYEABLE YARN, AND METHOD FOR PRODUCING CRIMPED YARN
PROBLEM TO BE SOLVED: To provide a crimped yarn for obtaining an extra-fine deeply dyeable yarn which is excellent in deep dyeability and can express a deep hue and tailored appearance, and which can reveal a chamois-like texture (a soft and smooth touch, an elegant coat of fur, and a flexible textu...
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Main Authors | , |
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Format | Patent |
Language | English Japanese |
Published |
09.05.2016
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide a crimped yarn for obtaining an extra-fine deeply dyeable yarn which is excellent in deep dyeability and can express a deep hue and tailored appearance, and which can reveal a chamois-like texture (a soft and smooth touch, an elegant coat of fur, and a flexible texture) when subjected to raising processing.SOLUTION: A crimped yarn is obtained in such a way that a polyester conjugated undrawn yarn is subjected to heat shrinkage treatment under a tensile force of 0.05 cN/dtex or less, at a temperature of 140-160°C, and at an overfeed ratio of 0-30%, and then subjected to draw false-twisting treatment at a draw ratio of 1.15-1.4 times, at a false-twisting coefficient of 27,000-32,000, at a false-twisting temperature of 170-190°C, and under an untwisting tensile force strength represented by the following equation (i) of 0.2-0.5 cN/dtex. The crimped yarn is split by alkali reduction processing into an extra-fine deeply dyeable yarn having a single fiber fineness of 0.01-0.5 dtex. Untwisting tensile force strength (cN/dtex)=[Untwisting tensile force (cN)]/[Actual fineness (dtex) of the crimped yarn after the draw false-twisting treatment] (i).SELECTED DRAWING: Figure 1
【課題】濃染性に優れ、深みのある色相と仕立て映えとを表現でき、起毛加工を行った場合にセーム調風合い(ヌメリ感、上品な毛並み、及びしなやかな風合い)を発現し得る極細濃染加工糸得るための捲縮糸を提供する。【解決手段】ポリエステル複合未延伸糸を0.05cN/dtex以下の張力、140〜160℃の温度、及び0〜30%のオーバーフィード率で収縮熱処理し、次いで、1.15〜1.4倍の延伸倍率、27000〜32000の仮撚係数、170〜190℃の仮撚温度、及び0.2〜0.5cN/dtexの下記式(i)で示される解撚張力強さで延伸仮撚処理された捲縮糸である。前記捲縮糸はアルカリ減量加工により割繊されて単糸繊度が0.01〜0.5dtexである極細濃染加工糸となる。解撚張力強さ(cN/dtex)=解撚張力(cN)/延伸仮撚処理後の捲縮糸の実繊度(dtex) (i)【選択図】図1 |
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Bibliography: | Application Number: JP20150050891 |