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Title:
TOOTHBRUSH AND MANUFACTURING METHOD OF THE SAME
Document Type and Number:
Japanese Patent JP2016049390
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a toothbrush in which a tapered face is formed in the fiber tip end part that constitutes the brush and that is made of synthetic resin, and in which the fiber surface including the fiber tip end part has mineral coating and adequate firmness (bending strength) in the bristle tips (fiber), and also to provide a manufacturing method of the toothbrush.SOLUTION: The toothbrush 1 has a brush in which a mineral component layer is formed on the surface of synthetic resin-made fibers 4. The toothbrush is characterized in that, of the synthetic resin-made fibers 4 (4a, 4b) constituting the brush 3, the synthetic resin-made fiber 4a with a tapered face 4a1 formed occupies 90% or more, that the tapered face 4a1 is formed not less than 1 mm and not more than 8 mm from the tip end, and that the bending strength of the brush at the position of 1 mm from the leading edge of the brush 3 (synthetic resin-made fiber 4 (4a, 4b)) is not less than 0.60 N/cmand not more than 2.00 N/cm.SELECTED DRAWING: Figure 1

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Inventors:
NAKAMURA HITOSHI
TAKIGAWA SEIICHI
Application Number:
JP2014177837A
Publication Date:
April 11, 2016
Filing Date:
September 02, 2014
Export Citation:
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Assignee:
MITSUBISHI PENCIL CO LTD
TSUJI YOHEI
International Classes:
A46B9/04; A46D1/00
Domestic Patent References:
JPH0245029U1990-03-28
JP2010233781A2010-10-21
JP2007097850A2007-04-19
JP2007167370A2007-07-05
JPH09103946A1997-04-22
JP2003319833A2003-11-11
JP2005526555A2005-09-08
JP2003166117A2003-06-13
JPH0647383A1994-02-22
Foreign References:
WO2013164986A12013-11-07
Attorney, Agent or Firm:
木下 茂



 
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