Preventing degradation of stored base templates before laser finishing
US11702783B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2022 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Apr 12, 2042 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P1/228
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Indigo-dyed garments are treated with an anti-ozone agent to prevent ozone-related degradation of the garments before laser finishing. Without treatment, the garments can exhibit color loss (e.g., color change or fading) from exposure to ozone in the atmosphere. The indigo-dyed garments with anti-ozone treatment can serve as base templates in a laser finishing process flow. The anti-ozone treatment of the base templates can include a rinse including an ascorbic acid or vitamin C constituent during a base preparation process. Then quantities of these base templates can manufactured and stored for periods of time without exhibiting ozone-related degradation effects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.