Patents Assigned to Difco Performance Fabrics, Inc.
  • Fabric blends of aramid fibers and flame resistant cellulosic fibers
    Patent number: 6576025
    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.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: June 10, 2003
    Assignee: Difco Performance Fabrics, Inc.
    Inventor: Francois Lapierre