Title:
ブラシ用ブリッスル
Document Type and Number:
Japanese Patent JP6779011
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a brush bristle which can attain a soft feel, which can enter at a tip side portion even into a fine irregularity and can improve a frictional force at a cleaning time, which can be made compatible for a soft feel and a cleaning actual feel, and which is enabled to acquire excellent holding properties for cosmetic material and agent by high frictional force.SOLUTION: A brush bristle 10 is used in a tooth brush and is made of a resin mainly composed of polytrimethylene terephthalate, and is equipped on the leading end side with a taper shape portion 11 having a sectional area reduced toward a leading end, and an arithmetic average roughness Ra of the surface of a brush tip portion 12 or the area of 300 μm from the leading end is 0.2 to 1 μm.SELECTED DRAWING: Figure 3
Inventors:
Taku Hiya
Akira Suzuki
Akira Suzuki
Application Number:
JP2015256446A
Publication Date:
November 04, 2020
Filing Date:
December 28, 2015
Export Citation:
Assignee:
Kao Corporation
International Classes:
A46D1/05
Domestic Patent References:
| JP2003144230A | ||||
| JP2006141991A | ||||
| JP2005000310A | ||||
| JP2014087637A | ||||
| JP2007167297A | ||||
| JP10057149A |
Attorney, Agent or Firm:
Showa International Patent Office
Shuichi Maeda
Yoshiyuki Matsushima
Akihisa Iwamoto
Genichi Naruse
Shuichi Maeda
Yoshiyuki Matsushima
Akihisa Iwamoto
Genichi Naruse