The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 1999
Filed:
Aug. 20, 1997
Applicant:
Inventors:
Brian Foody, Ottawa, CA;
Colin Nicholson, Ottawa, CA;
Jeffrey Tolan, Ottawa, CA;
Theresa White, Ottawa, CA;
Assignee:
Iogen Corporation, Ottawa, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06M / ; C12N / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
435263 ; 435209 ; 4352546 ; 435945 ; 4351721 ;
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.