| 摘要 |
PROBLEM TO BE SOLVED: To provide an interdentium brush, hardly causing hyperesthesia and feeling of physical disorder at the time of use. SOLUTION: This interdentium brush is obtained by heat treating chenille yarns. A shaft part of the interdentium brush is composed of a core yarn and a presser yarn. The bristle part of the interdentium brush is composed of flower thread. At least either the core yarn or the presser yarn contains heat fusing fiber. As the heat fusing fiber, preferably a core-sheath compound fiber is used, in which the sheath part is made of low melting point component, the core part is made of high melting point component, and the low melting point component functions as a heat fusing component. The core yarn and the presser yarn are united in a body by fusion of the heat fusing fiber to form the shaft of the interdentium brush. The flower thread constituting the bristle part is fixed to the shaft part of the interdentium brush by fusion of the heat fusing fiber. COPYRIGHT: (C)2006,JPO&NCIPI
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