Title:
TOOTHBRUSH FILAMENT AND PREPARATION METHOD THEREFOR, AND TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2023/216387
Kind Code:
A1
Abstract:
A toothbrush filament preparation method, a prepared toothbrush filament, and a toothbrush. The toothbrush filament preparation method comprises: melting and extruding a piezoelectric polymer, and executing a corona polarization step and an annealing step, such that the piezoelectric constant of a toothbrush filament in a standing state is greater than or equal to 0.4 pC/N, and some polarized charges stably exist on the surface of the toothbrush filament. The problem of bacteria breeding on a toothbrush filament in a standing state can be effectively relieved by utilizing the action principle of physical electrical stimulation for an antibacterial purpose, thereby improving the antibacterial properties of the toothbrush filament.
Inventors:
ZHANG XUEHUI (CN)
DENG XULIANG (CN)
LU YANHUI (CN)
YUAN SHENPO (CN)
DENG XULIANG (CN)
LU YANHUI (CN)
YUAN SHENPO (CN)
Application Number:
PCT/CN2022/101855
Publication Date:
November 16, 2023
Filing Date:
June 28, 2022
Export Citation:
Assignee:
UNIV PEKING SCHOOL STOMATOLOGY (CN)
International Classes:
B29C48/05; A46D1/04
Foreign References:
| CN110306248A | 2019-10-08 | |||
| JPH01181804A | 1989-07-19 | |||
| CN110042481A | 2019-07-23 | |||
| CN113974511A | 2022-01-28 | |||
| CN112736188A | 2021-04-30 |
Attorney, Agent or Firm:
PATENTSINO IP FIRM (CN)
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