Processing method for taper of needle-shaped bristle enhanced throughput
US8333436B2 · kind B2 · utility
9Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2008 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Feb 18, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B2200/1066
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method of tapering a toothbrush bristle which increases production efficiency. The method includes the steps of cutting bundles of toothbrush bristles; and non-directionally immersing the entire cut bundles of toothbrush bristles into a chemical solution to taper both sides of the toothbrush bristles. According to the present invention, the production efficiency of a needle-shaped bristle is increased approximately three-fold, and the loss of raw materials is greatly decreased because several processes are not performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.