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. 10, 2003
Filed:
Feb. 01, 2001
Applicant:
Inventor:
Francois Lapierre, Brossard, CA;
Assignee:
Difco Performance Fabrics, Inc., North Charleston, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06P 3/87 ; D06P 1/651 ;
U.S. Cl.
CPC ...
D06P 3/87 ; D06P 1/651 ;
Abstract
The instant invention is directed to dyed fabric blends of aramid fibers and flame resistant (FR) cellulosic fibers, which retains a substantial amount of its strength and durability after dyeing. The dyeing process comprises the steps of: providing a fabric comprising a blend of aramid fibers and cellulosic fibers, dyeing the cellulosic fibers of the fabric, and dyeing the aramid fibers of the fabric. Dyeing of the aramid fibers being preformed with low agitation, an aryl ester carrier, and, preferably, at a temperature between 100-110° C.