Methods for treating cotton-containing fabrics with CBH I enriched cellulase
AssigneeGenencor International, Inc.
InventorsKathleen A. Clarkson, Kathy Collier, Pushkaraj J. Lad, Geoffrey L. Weiss
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Abstract
Disclosed are improved methods for treating cotton-containing fabrics as well as the fabrics produced from these methods. In particular, the disclosed methods are directed to contacting cotton-containing fabrics with an aqueous solution containing a fungal cellulase composition which comprises CBH I type components and one or more EG type components wherein said cellulase composition has a protein weight ratio of CBH I type components to all EG type components of greater than 10:1. Cotton-containing fabrics so treated possess decreased strength loss as compared to fabrics treated with a complete cellulase composition.
Claims11
In a method for enhancing the feel, appearance, for softening or for imparting color enhancement and/or a stoned-washed appearance to cotton-containing fabrics by treatment of the fabric with a composition comprising a naturally complete fungal cellulase composition which comprises CBH I type components and EG type components under conditions wherein the cellulase composition enhances the feel, appearance, for softening of the fabric or for imparting color enhancement and/or a stoned-washed appearance to the fabric wherein said improvement comprises modifying the fungal cellulase composition to comprise a protein weight ratio of CBH I type cellulase components to EG type components found in the modified cellulase composition to a ratio of from 10:1 to 400:1.
In a method for enhancing the feel, appearance for softening or imparting imparting color enhancement or for imparting a stoned-washed appearance to cotton-containing fabrics by treatment of the fabric with an aqueous cellulase solution comprising a naturally complete fungal cellulase composition which comprises CBH I type components and EG type components wherein said method is conducted with agitation of the cellulase solution under conditions so as to produce a cascading effect of the cellulase solution over the fabric under conditions wherein the cellulase composition enhances the feel, appearance, and/or softening of the fabric and/or imparts color enhancement and/or a stoned-washed appearance to the fabric wherein the improvement comprises modifying the fungal cellulase composition to comprise a protein weight ratio of CBH I type cellulase components to all EG components found in the modified cellulase composition to a ratio of from 10:1 to 400:1.
Dependencies are inferred from the claim text.