Title:
TOOTHBRUSH AND METHOD FOR MANUFACTURING TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2016/035775
Kind Code:
A1
Abstract:
Provided are a toothbrush provided with bristles (fibers) of suitable stiffness (flexural strength), in which tapered surfaces are formed at the tips of synthetic resin fibers that constitute the brush, the fiber surfaces including the fiber tips being mineral-coated; and a method for manufacturing the toothbrush. The toothbrush 1 comprises a brush in which a mineral component layer is formed on the surfaces of synthetic resin fibers 4, and is characterized in that synthetic resin fibers 4a on which tapered surfaces 4a1 are formed constitute 90% or more of the synthetic resin fibers 4 (4a, 4b) that constitute the brush 3, the tapered surfaces 4a are formed 1 to 8 mm from the tips, and the flexural strength at a location 1 mm from the outermost tips of the brush 3 (the synthetic resin fibers 4 (4a, 4b)) is 0.60 N/cm2-2.00 N/cm2.
Inventors:
NAKAMURA HITOSHI (JP)
TAKIGAWA SEIICHI (JP)
TAKIGAWA SEIICHI (JP)
Application Number:
PCT/JP2015/074775
Publication Date:
March 10, 2016
Filing Date:
August 31, 2015
Export Citation:
Assignee:
MITSUBISHI PENCIL CO (JP)
TSUJI YOHEI (JP)
TSUJI YOHEI (JP)
International Classes:
A46B9/04; A46B15/00; A46D1/00; A46D1/05
Domestic Patent References:
| WO2013164986A1 | 2013-11-07 |
Foreign References:
| JPH0245029U | 1990-03-28 | |||
| JP2010233781A | 2010-10-21 | |||
| JP2007097850A | 2007-04-19 | |||
| JP2007167370A | 2007-07-05 | |||
| JPH09103946A | 1997-04-22 | |||
| JP2003166117A | 2003-06-13 | |||
| US20140325778A1 | 2014-11-06 |
Attorney, Agent or Firm:
KINOSHITA SHIGERU (JP)
Shigeru Kinoshita (JP)
Shigeru Kinoshita (JP)
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