| 摘要 |
PROBLEM TO BE SOLVED: To obtain a spun yarn having good fundamental performances such as good washing resistance, capable of being easily degraded in soil when wast ed, not generating an injurious gas when incinerated, and useful for clothes or the like, by blending natural fibers such as cotton with specific biodegradable fibers. SOLUTION: This spun yarn comprises (A) polylactic acid staple fibers or filaments having a tensile strength of >=2.0 g/d, a breading elongation of <=100% and an optical purity of >=90% and (B) natural fibers such as cotton, silk or wool. The polylactic acid staple fibers or filaments are preferably blended in an amount of 20-80 wt.%.
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