| 摘要 |
PROBLEM TO BE SOLVED: To provide a brush bristle and a brush, having low hygroscopic property, higher elastic recovery as compared with the conventional nylon, excellent durability and further excellent cleaning performance. SOLUTION: In this brush planted with brush bristles made of synthetic polymers, a filament of the brush bristle is a composite thread composed of a core component and a sheath component. The core component is composed mainly of polypropylene terephthalate, and the sheath component is composed mainly of polyetherester-based elastomer. COPYRIGHT: (C)2004,JPO
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