| 摘要 |
PROBLEM TO BE SOLVED: To provide new artificial-hair fibers excellent in durability. SOLUTION: The artificial-hair fibers comprise polyester fibers. The cross-sectional surface of each of the polyester fibers has a spectacle shape. A constriction ratio of the fiber is 2.5-8, and the surface of the fiber has unevenness. COPYRIGHT: (C)2007,JPO&INPIT
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