| 摘要 |
PROBLEM TO BE SOLVED: To provide a blended spun yarn giving a cloth with good swell and touch feeling and without uneven dyeing on dyeing, and a method for producing the same. SOLUTION: This blended spun yarn obtained by spinning a high shrinkage multifilament yarn A and a low shrinkage multifilament yarn B together is provided, wherein the high shrinkage multifilament yarn A is substantially composed of a synthetic fiber filament obtained by mainly using a thermoplastic polymer as a raw material, having a dry heat shrinkage of 10-45% at 180°C, excellent in stability over time of the dry heat shrinkage, and having a dry shrinkage changing rate [Kd(%)] satisfying formula (1): 0.0≤Kd(%)<5.0, and also the multifilament yarn B is composed of a synthetic fiber filament having a dry heat shrinkage and/or boiling water shrinkage substantially smaller than those of the high shrinkage multifilament yarn A. COPYRIGHT: (C)2007,JPO&INPIT
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