Enzymatic method for textile dyeing
US6805718B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2003 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Feb 27, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/916
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to methods of dyeing a material which involve contacting the material with a dyeing system which comprises: (a) a mixture of (i) an aromatic diamine and (ii) one or more of a naphthol and an aminonaphthalene and (b) an oxidation system comprising (i) a hydrogen peroxide source and an enzyme exhibiting peroxidase activity or (ii) an enzyme exibiting oxidase activity on one or more of the compounds of mixture (a). The material may be a fabric, yarn, fiber, garment or film made of fur, hide, leather, silk or wool, or made of cationic polysaccharide, cotton, diacetate, flax, linen, lyocel, polyacrylic, synthetic polyamide, polyester, ramie, rayon, triacetate, or viscose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.