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Title:
BRISTLE MATERIAL FOR TOOTHBRUSH AND TOOTHBRUSH
Document Type and Number:
Japanese Patent JP2013226172
Kind Code:
A
Abstract:

To provide a bristle material for a toothbrush which has a moderate flexibility and high friction coefficient compared to a conventional bristle material for a toothbrush which is made of a nylon resin or polyester resin, and has a superior cleaning effect such as plaque removal, and excellent sense of use such as a massage effect to gums, and to provide a toothbrush.

A cut bristle 5 made of a core/sheath composite monofilament comprises a core part 2 of polyester based elastomer with a Shore D hardness of 50D to 75D measured by the durometer type D hardness test method for plastic as stipulated by JIS-K-7215, and a sheath part 3 of polyester-based resin. At least in one end of such cut bristle 5, a blunt tapered part 4 is provided having a relationship d/D×100 between a diameter at 0 mm in the tip end part and a diameter D at the maximum diameter part of 15 to 45%.


Inventors:
Tanaka, Isao
Application Number:
JP2012000098417
Publication Date:
November 07, 2013
Filing Date:
April 24, 2012
Export Citation:
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Assignee:
TORAY MONOFILAMENT CO LTD
International Classes:
A46D1/00
Attorney, Agent or Firm:
岩見 知典



 
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