Title:
歯ブラシの製造方法
Document Type and Number:
Japanese Patent JP6599088
Kind Code:
B2
Abstract:
Provided are a toothbrush in which a tapered surface is formed on a tip part of synthetic resin fibers forming a brush and a fiber surface including the fiber tip part is coated with minerals and the toothbrush is provided with a bristle tip (fiber) having appropriate bending strength, and a manufacturing method of the toothbrush. The toothbrush 1 includes a brush in which a mineral component layer is formed on a surface of a synthetic resin fiber 4. The synthetic resin fiber 4a having a tapered surface 4a1 which is formed in a range of 1 mm to 8 mm from a tip occupies 90% or more of the synthetic resin fibers 4 (4a, 4b), and bending strength of the brush at a position of 1 mm from a leading edge of the brush 3 (the synthetic resin fibers 4 (4a, 4b)) is 0.60 N/cm2 to 2.00 N/cm2.
Inventors:
Hitoshi Nakamura
Seiichi Takigawa
Seiichi Takigawa
Application Number:
JP2014177837A
Publication Date:
October 30, 2019
Filing Date:
September 02, 2014
Export Citation:
Assignee:
Yohei Tsuji
International Classes:
A46B9/04; A46D1/00
Domestic Patent References:
| JP2045029U | ||||
| JP2010233781A | ||||
| JP2003319833A | ||||
| JP2005526555A | ||||
| JP2003166117A | ||||
| JP6047383A | ||||
| JP2007097850A | ||||
| JP2007167370A | ||||
| JP9103946A |
Foreign References:
| WO2013164986A1 |
Attorney, Agent or Firm:
Kinoshita Shigeru