Protease-Treated and purified cellulase compositions and methods for reducing backstaining during enzymatic stonewashing
US5916799A · kind A · utility
4Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Aug 20, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/945
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
During the enzymatic "stone washing" of a denim fabric and/or garments, an undesirable redeposition of blue dye often occurs on the surfaces of the denim. The invention relates to a means of overcoming this problem using an enzyme composition comprised of Trichoderma endoglucanases and Trichoderma cellobiohydrolases that has been partially digested by a protease enzyme to separate its core and binding domains. The use of this composition reduces the redeposition of the blue dye and hence improves the stone washing process relative to using a redepositing or backstaining cellulase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.