Title:
ENZYMATIC METHOD FOR OVERDYEING CELLULOSIC TEXTILES
Document Type and Number:
WIPO Patent Application WO/1998/005816
Kind Code:
A1
Abstract:
The present invention relates to methods of overdyeing a dyed fabric or article, comprising treating the fabric or article 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. The present invention also relates to aqueous dye liquors for imparting an overdyed appearance on the cellulosic fabric or article, comprising (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, in amounts effective to impart an overdyed appearance to the fabric or article. The present invention also relates to fabric or article treatment compositions, comprising (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, in amounts effective to impart an overdyed appearance to the fabric or article.
Inventors:
BARFOED MARTIN
KIRK OLE
KIRK OLE
Application Number:
PCT/US1997/013371
Publication Date:
February 12, 1998
Filing Date:
July 24, 1997
Export Citation:
Assignee:
NOVO NORDISK BIOCHEM INC (US)
International Classes:
D06P1/00; D06P5/02; (IPC1-7): D06P1/00
Domestic Patent References:
| WO1997023684A1 | 1997-07-03 | |||
| WO1994000100A1 | 1994-01-06 | |||
| WO1995033836A1 | 1995-12-14 |
Foreign References:
| FR2694018A1 | 1994-01-28 | |||
| US5460966A | 1995-10-24 | |||
| US3934971A | 1976-01-27 | |||
| DE3636387A1 | 1988-04-28 |
Other References:
DATABASE WPI Section Ch Week 9021, Derwent World Patents Index; Class A35, AN 90-161489, XP002030252
DATABASE WPI Section Ch Week 9505, Derwent World Patents Index; Class D16, AN 95-033019, XP002030254
DATABASE WPI Section Ch Week 9630, Derwent World Patents Index; Class A11, AN 96-295885, XP002030255
DATABASE WPI Section Ch Week 9505, Derwent World Patents Index; Class D16, AN 95-033019, XP002030254
DATABASE WPI Section Ch Week 9630, Derwent World Patents Index; Class A11, AN 96-295885, XP002030255
Attorney, Agent or Firm:
Zelson, Steve T. (Inc. Suite 6400, 405 Lexington Avenu, New York NY, US)
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