Title:
CORE/SHEATH COMPOSITE FILAMENT FOR TOOTHBRUSHES, AND TOOTHBRUSH USING SAME
Document Type and Number:
WIPO Patent Application WO/2011/058985
Kind Code:
A1
Abstract:
Provided is a core/sheath composite filament for toothbrushes which exhibits excellent hardness, durability and ease-of-use when used in toothbrushes, is less prone to falling out when implanted into the bristle base, and makes it possible to improve stain-removal properties. Also provided is a toothbrush using said core/sheath composite filament. A toothbrush is configured using bundles of bristles configured from core/sheath composite filaments that have a square cross section in the plane perpendicular to the lengthwise direction and comprise a core (2), which is formed from a synthetic resin fiber, and a sheath (3), which integrally covers the core (2) and is formed from an elastomer that is compatible with the synthetic resin constituting the core (2). Bristle bundles configured from a plurality of the core/sheath composite filaments (1) are implanted in the center portion of a bristle base, and bristle bundles configured from a plurality of monofilaments formed from hard synthetic resin are implanted at the outer periphery of the bristle base.
Inventors:
KATO Keisuke (3-1 Asahimachi, Takatsuki-sh, Osaka 95, 〒5691195, JP)
加藤 啓介 (〒95 大阪府高槻市朝日町３－１ サンスター株式会社内 Osaka, 〒5691195, JP)
HYODO Nobuhisa (1, Kawahara, Showacho, Okazaki-sh, Aichi 12, 〒4448512, JP)
加藤 啓介 (〒95 大阪府高槻市朝日町３－１ サンスター株式会社内 Osaka, 〒5691195, JP)
HYODO Nobuhisa (1, Kawahara, Showacho, Okazaki-sh, Aichi 12, 〒4448512, JP)
Application Number:
JP2010/069975
Publication Date:
May 19, 2011
Filing Date:
November 10, 2010
Export Citation:
Assignee:
SUNSTAR INC. (3-1 Asahimachi, Takatsuki-shi Osaka, 95, 〒5691195, JP)
サンスター株式会社 (〒95 大阪府高槻市朝日町３－１ Osaka, 〒5691195, JP)
KATO Keisuke (3-1 Asahimachi, Takatsuki-sh, Osaka 95, 〒5691195, JP)
加藤 啓介 (〒95 大阪府高槻市朝日町３－１ サンスター株式会社内 Osaka, 〒5691195, JP)
サンスター株式会社 (〒95 大阪府高槻市朝日町３－１ Osaka, 〒5691195, JP)
KATO Keisuke (3-1 Asahimachi, Takatsuki-sh, Osaka 95, 〒5691195, JP)
加藤 啓介 (〒95 大阪府高槻市朝日町３－１ サンスター株式会社内 Osaka, 〒5691195, JP)
International Classes:
A46D1/00
Attorney, Agent or Firm:
YANAGINO Takao et al. (Noskmard building, 1-15-1Miyahara, Yodogawa-ku, Osaka-sh, Osaka 03, 〒5320003, JP)
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