| 摘要 |
PROBLEM TO BE SOLVED: To provide an aliphatic polyester composite false-twist textured yarn having unconventional high gloss and high color developability and excellent puffiness and peculiar touch feeling, and easily degradable in natural environment, despite being a sheath/core-structured composite false-twist textured yarn composed of core yarn and sheath yarn each of aliphatic polyester multifilament >=130 deg.C in melting point with different elongation at break from each other and excellent in stroke passableness, thus capable of giving fabric products suitable as clothing textiles, and to provide a method for producing the above false-twist textured yarn. SOLUTION: This method for producing an aliphatic polyester composite false-twist textured yarn comprises interlacing together two kinds of aliphatic polyester multifilament >=130 deg.C in melting point with different elongation at break from each other followed by making a false twisting.
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