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:
Apr. 01, 1980
Filed:
Aug. 03, 1978
Applicant:
Inventors:
Wilfried Kothe, Ludwigshafen, DE;
Wolfgang Grunwald, Frankenthal, DE;
Assignee:
BASF Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01C / ; D06L / ;
U.S. Cl.
CPC ...
8138 ; 252 99 ; 252105 ; 252175 ;
Abstract
A process for desizing and bleaching textile goods containing, or consisting of, cellulose, by simultaneous enzymatic desizing and pretreatment with a solution of sodium dithionite and a conventional heavy metal complexing agent in the presence of a buffer system at pH 6-9 and subsequent conventional peroxide bleaching in the presence of little or no silicate as a stabilizer. The process improves the bleaching effect and the economics and reduces the risk of fiber damage or destruction or of silicate deposits without an additional treatment stage.