Patent ID: 6036729
Filing Date: 2000-03-14
Classification: D06P,Y10S

Abstract:
A method of dyeing a material, comprising(a) soaking the material in an aqueous solution which comprises one or more naphthols, each of which is optionally substituted with one or more functional groups or substituents, wherein each functional group or substituent is selected from the group consisting of halogen; sulfo; sulfonato; sulfamino; sulfanyl; amino; aminophenyl; amido; amidophenyl; nitro; azo; inino; carboxy; cyano; formyl; hydroxy; halocarbonyl; carbamoyl; carbamidoyl; phosphonato; phosphonyl; C.sub.1-18 -alkyl; C.sub.2-18 -alkenyl; C.sub.2-18 -alkenyl: C.sub.1-18 -alkoxy; C.sub.1-18 -oxycarbonyl; C.sub.1-18 -oxoalkyl; C.sub.1-18 -alkyl sulfanyl; C.sub.1-18 -alkyl sulfonyl; and C.sub.1-18 -alkyl imino or amino which is substituted with one, two or three C.sub.1-18 -alkyl groups; wherein each C.sub.1-18 -alkyl, C.sub.2-18 -alkenyl and C.sub.2-18 -alkenyl group is optionally mono-, di or poly-substituted by any of the proceeding functional groups or substituents; and(b) treating the soaked material in an aqueous solution with (i) a hydrogen peroxide source and an enzyme exhibiting peroxidase or haloperoxidase activity or (ii) an enzyme selected from the group consisting of bilirubin oxidase, catechol oxidase, laccase, o-aminophenol oxidase, and polyphenol oxidase;wherein the material is a fabric, yarn, fiber, garment or film made of fur, hide, leather, silk or wool.