HOLLOW POLYESTER LONG FIBER AND PREPARATION METHOD THEREFOR
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United States of America
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Jan 16, 2020
app pub date -
Dec 22, 2017
filing date -
Dec 22, 2017
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Abstract
A hollow polyester long fiber has a cross-sectional hollowness ranging from 20.0% to 45.0%, the long fiber in natural state being of a three-dimensionally crimped shape, and the radius of curvature of the crimped shape being 10.0 mm to 50.0 mm. The fluffy processed tows obtained by processing the hollow polyester long fiber have high fluffiness.
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