HEAT-BONDABLE CONJUGATE FIBER WITH EXCELLENT SOFTNESS AND NONWOVEN FABRIC USING THE SAME
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United States of America Patent
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Issued Date -
Apr 28, 2016
app pub date -
May 30, 2014
filing date -
May 31, 2013
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Abstract
The present invention are a heat-bondable conjugate fiber ensuring that the crimp configuration stability can be maintained even in the state of leaving elongation of the fiber and bulkiness and softness are imparted to the nonwoven fabric, and a nonwoven fabric using the same. A heat-bondable conjugate fiber comprises a first component containing a polyester-based resin and a second component containing a polyolefin-based resin having a melting point lower than the melting point of said polyester-based resin, wherein said second component is a heat-bondable conjugate fiber accounting for a specific range of the outer fiber circumference and having a side-by-side or eccentric sheath-core structure and the fiber has a specific elongation, a specific range of a three-dimensional actualized crimp and a specific range of a crimp modulus.
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