Methods for reducing the harshness of a cotton-containing fabric
First Claim
1. A method of reducing the rate at which a cotton-containing fabric becomes harsh or of reducing the harshness of a cotton-containing fabric, comprising treating the cotton-containing fabric with an effective amount of a cellulase preparation obtained from a fungus, wherein the cellulase preparation comprises a substantially homogeneous endoglucanase component which:
- (a) has a pH optimum of about 7.5-10.0;
(b) exhibits a CMC endoase activity of at least about 10 CMC-endoase units per mg of total protein;
(c) exhibits a CAVU activity of at least about 50% at a pH of 7.0-12.0; and
(d) has essentially no cellobiohydrolase activity;
wherein at least about 50% by weight of the total cellulase content of the cellulase preparation is the endoglucanase component.
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Abstract
The present invention relates to methods of reducing the rate at which a cotton-containing fabric becomes harsh or of reducing the harshness of a cotton-containing fabric, comprising treating the cotton-containing fabric with a cellulase preparation obtained from a fungus, wherein the cellulase preparation comprises a substantially homogeneous endoglucanase component which: (a) has a pH optimum of about 7.5-10.0; (b) exhibits a CMC endoase activity of at least about 10 CMC-endoase units per mg of total protein; (c) exhibits a CAVU activity of at least about 50% at a pH of 7.0-12.0; and (d) has essentially no cellobiohydrolase activity; wherein at least about 50% by weight of the total cellulase content of the cellulase preparation is the endoglucanase component.
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Citations
19 Claims
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1. A method of reducing the rate at which a cotton-containing fabric becomes harsh or of reducing the harshness of a cotton-containing fabric, comprising treating the cotton-containing fabric with an effective amount of a cellulase preparation obtained from a fungus, wherein the cellulase preparation comprises a substantially homogeneous endoglucanase component which:
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(a) has a pH optimum of about 7.5-10.0; (b) exhibits a CMC endoase activity of at least about 10 CMC-endoase units per mg of total protein; (c) exhibits a CAVU activity of at least about 50% at a pH of 7.0-12.0; and (d) has essentially no cellobiohydrolase activity; wherein at least about 50% by weight of the total cellulase content of the cellulase preparation is the endoglucanase component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification