Latently crimpable conjugate fiber and production method of the same, and fiber assembly, and nonwoven
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United States of America Patent
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Mar 2, 2010
Grant Date -
Jan 18, 2007
app pub date -
Aug 26, 2004
filing date -
Aug 28, 2003
priority date (Note) -
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Abstract
of the first component, such that the first component is exposed with an exposed length of at least 20% relative to a peripheral length of the fiber, and which fiber has a single fiber dry heat shrinkage percentage of at least 50%, which is determined according to JIS-L-1015 (dry heat shrinkage percentage) at 100° C. under an initial tension of 0.018mn/dtex (2mg/d) for 15 minutes and a single fiber dry heat shrinkage percentage of at least 15%, which is determined under the same condition under an initial tension of 0.450mN/dtex (50mg/dtex) for 15 minutes. The latently crimpable conjugate fiber develops crimps and has thermal adhesiveness at a low temperature.
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