Enzymatic method for overdyeing warp dyed denim textiles
US5925148A · kind A · utility
9Cited by
12References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1997 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Jul 28, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/93
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to methods of overdyeing a warp dyed denim textile, comprising treating the textile in an aqueous dye liquor with a dye system which comprises an effective amount of (a) one or more mono-, di- or polycyclic aromatic or heteroaromatic compounds and (b) (i) a hydrogen peroxide source and at least one enzyme exhibiting peroxidase activity and/or (ii) at least one enzyme exhibiting oxidase activity on the one or more aromatic or heteroaromatic compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.