Enzymatic method for textile dyeing
AssigneesNovozymes A/S Patents, Novozymes North America, Inc.
InventorsMartin Barfoed, Ole Kirk, Sonja Salmon
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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.
Claims30
A method for dyeing an undyed material, said method comprising contacting the material with a dyeing system which comprises:
- (a) a mixture of (i) at least one aromatic diamine and (ii) at least one compound selected from the group consisting of a naphthol and an aminonaphthalene, wherein at least one of the compounds of (i) or (ii) is substituted with a functional group selected from the group consisting of a sulfonic acid, a sulfonamide, and a quaternary ammonium salt;
- and
- (b) an oxidation system comprising (i) a hydrogen peroxide source and an enzyme exhibiting peroxidase activity or (ii) an enzyme exhibiting oxidase activity on one or more of the compounds of mixture (a), under conditions in which a colored material is produced.
A dye mixture comprising:
- (i) at least one aromatic diamine and (ii) at least one compound selected from the group consisting of a naphthol and an aminonaphthalene,
- wherein at least one of the compounds of (i) or (ii) is substituted with a functional group selected from the group consisting of a sulfonic acid, a sulfonamide, and a quaternary ammonium salt.
A dyeing kit comprising:
- (a) at least one aromatic diamine;
- (b) at least one compound selected from the group consisting of a naphthol and an aminonaphthalene;
- and
- (c) an enzyme selected from the group consisting of a peroxidase and a laccase,
- wherein at least one of the compounds of (a) or (b) is substituted with a functional group selected from the group consisting of a sulfonic acid, a carboxylic acid, a salt of a sulfonic acid or carboxylic acid, a sulfonamide, and a quaternary ammonium salt.
Dependencies are inferred from the claim text.