PROBLEM TO BE SOLVED: To provide a toothbrush which can be easily differentiated in functionality and a sense of use without depending on the special cutting shapes of bristles and without requiring a complicated array of bristle bundles or a plurality of types of bristles.SOLUTION: In the toothbrush 1 wherein a plurality of bristle bundles 6A, 6B are implanted into the implanting surface 3a of a head 3, the bristle bundles 6A, 6B of tapered bristles including the tapered bristles having the diameters gradually decreasing toward the tips of the bristles and having different tip diameters are implanted into the implanting surface 3a of the head 3 to provide distribution in the tip diameters of the bristle bundles 6A, 6B implanted into the implanting surface 3a of the head 3.COPYRIGHT: (C)2011,JPO&INPIT【課題】特別な毛切り形状に因らずに、また、複雑な毛束配列や複数の用毛種を必要とせずに、機能性や使用感において容易に差別化を図ることができる歯ブラシを提供する。【解決手段】ヘッド部3の植毛面3aに複数の毛束6A,6Bが植設されてなる歯ブラシ1であって、毛束6A,6Bは、毛先に向かって漸次径が細くなるテーパー用毛を含み、且つ、先端径が異なるテーパー用毛の毛束6A,6Bがヘッド部3の植毛面3aに植設されることによって、ヘッド部3の植毛面3aに植設された毛束6A,6Bの先端径に分布を持たせた。【選択図】図1
