Core-Sheath Conjugated Fiber
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United States of America Patent
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Issued Date -
Jun 11, 2015
app pub date -
Jul 11, 2013
filing date -
Jul 12, 2012
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Abstract
A core-sheath conjugated fiber has excellent moisture-absorption properties, antistatic properties, and cool feeling by contact, as well as being less prone to post process trouble even when the fiber is interknitted with polyurethane or polyethylene terephthalate. The fiber includes a core portion and a sheath portion. The core portion is not exposed through the surface of the fiber, and is composed of a polyether block amide copolymer represented by Formula (1) having a hard segment composed of nylon 6. The sheath portion is composed of a nylon-6 resin, and the area ratio of the core portion to the sheath portion in a transverse section of the fiber is 3/1 to 1/5.
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