Bleaching and dyeing; fluid treatment and chemical modification – Using enzymes – dye process – composition – or product of dyeing
Reexamination Certificate
2005-05-10
2005-05-10
Einsmann, Margaret (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Using enzymes, dye process, composition, or product of dyeing
C008S485000, C008S137000, C008S921000, C008S922000, C008S924000, C008S926000, C008S927000
Reexamination Certificate
active
06890361
ABSTRACT:
The present invention relates to methods and compositions for removing excess dye from dyed and/or printed materials, such as, textile materials dyed with disperse dyes, by treating a dyed or printed material with an esterase. The improvements resulting form the present invention include, for example, improvements in the washfastness, the wetfastness, the crockfastness, sublimation, and/or the quality of the color, such as, brightness, of dyed and/or printed materials. The present invention also relates to methods for printing or dyeing a material by dyeing or printing the material with a combination of a dye that is affected by esterase treatment and a dye that is not affected by esterase treatment, and after dyeing or printing the material, discharging residual dye by treating the material with an esterase.
REFERENCES:
patent: 6165960 (2000-12-01), Amory et al.
patent: 0 882 084 (1997-07-01), None
patent: WO 9957360 (1999-11-01), None
patent: WO 0032697 (2000-06-01), None
patent: WO 0148304 (2001-07-01), None
Degani et al., “Potential Use of Cutinase in Enzymatic Scouring of Cotton Fiber Cuticle,” App. Biochem and Biotech, vol. 102-103, 277-289 (2002).
Salmon Sonja
Shi Caroline
Xu Hui
Einsmann Margaret
Lambiris Elias J.
Novozymes North America Inc.
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