Title:
丸い歯ブラシ毛の製造方法
Document Type and Number:
Japanese Patent JP5005123
Kind Code:
B1
Abstract:
Disclosed herein is a method of processing rounded toothbrush bristles using synthetic bristles. The method includes cutting one end of a filament bundle of synthetic bristles, mechanically polishing the cut end of the filament bundle of synthetic bristles, heat treating the polished end of the filament bundle of synthetic bristles, and caustisizing the heat-treated end of the filament bundle of synthetic bristles into a round shape. In this method, at least one end of the toothbrush bristle is softly rounded to protect gum damage due to irritation of the one end of the toothbrush bristle and to provide a gum massaging effect for healthy gum with the rounded end of the toothbrush bristle.
Inventors:
Lee Hanki
Application Number:
JP2012514862A
Publication Date:
August 22, 2012
Filing Date:
August 26, 2009
Export Citation:
Assignee:
Clio Company Limited
International Classes:
A46D1/04; A46D1/00
Domestic Patent References:
| JP2004230178A | 2004-08-19 | |||
| JPH06192960A | 1994-07-12 | |||
| JP2008212510A | 2008-09-18 | |||
| JP2003000349A | 2003-01-07 |
Attorney, Agent or Firm:
Kenzo Hara International Patent Office