Cosmetic applicator brush and method of manufacture
US9357834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2008 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Sep 16, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B2200/1053
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A cosmetic applicator brush having a twisted wire core and an array of thermoplastic bristles with free tips extending radially outwardly from the core, wherein at least some of the bristles have shapes and/or surface textures modified at one or more localities between their free tips and the core by selective irradiation of the aforesaid locality or localities with laser energy. A method of making the brush includes the steps of assembling the core and bristles to form a brush, trimming the bristles to achieve a desired brush profile, and selectively irradiating at least some of the bristles with a laser beam at localities between the bristle tips and the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.