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:
Mar. 27, 1990
Filed:
Dec. 08, 1988
Applicant:
Inventor:
Lynne A Olson, Mendota Heights, MN (US);
Assignee:
Ecolab Inc., St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
D06M / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
435263 ; 81161 ; 25217412 ; 252D / ; 435188 ; 435209 ; 435264 ;
Abstract
Denim having a stone washed appearance is produced without stones by treating with a cellulase enzyme. Unsewn dyed denim fabric or a newly manufactured garment made of dyed denim fabric is contacted with an aqueous composition containing at least about 2500 CMCS units of cellulase per liter, and subjected to mechanical action. Preferably, the aqueous composition provides at least about 6000 CMC units of cellulase per pound of unsewn fabric or garment. The aqueous may also contain an electrolyte, a buffer, a builder salt a cellulase activator, an antioxidant and a solubilizer.