False-twisted low-fused polyester yarn and multilayer-structure woven or knitted fabric
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United States of America Patent
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May 1, 2018
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app pub date -
Jun 21, 2013
filing date -
Jun 22, 2012
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Abstract
A false-twisted low-fused polyester yarn has a non-untwisted part having a twist in a false-twist direction, an over-untwisted part having a twist in a direction opposite to the false-twist direction, and a non-twisted crimped part having no twist, alternately disposed along the longitudinal direction of the yarn, the average length of the non-untwisted part being no more than 7 mm, the average length of the over-untwisted part being at least 7 mm, and the degree of fusion-bonding in the yarn longitudinal direction being no more than 50%.
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