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:
Oct. 25, 1994
Filed:
Sep. 17, 1991
Applicant:
Inventors:
David R Kelly, Dalton, GA (US);
Richard Castle, Chatte, TN (US);
Christopher Bryant, Dalton, GA (US);
Assignee:
Shaw Industries, Inc., Dalton, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06P / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
8483 ; 8464 ; 8470 ; 8527 ; 8528 ; 8574 ; 8611 ; 8928 ; 8929 ;
Abstract
There is disclosed a process and a composition for dyeing polymeric fibers which have limited dye sites and/or difficult to penetrate chemical structures. Briefly stated, the process comprises the steps of contacting polymeric fibers with a dye composition comprising a disperse dye and a swelling agent. The fibers in contact with said dye composition are then preferably heated to a temperature and for a time sufficient to effect dispersion of a portion of said dye into said polymeric fibers. Subsequently, the fibers are treated to remove residual dye composition.