Dyeing Process Involving Burning Of Reagents Patents (Class 8/503)
  • Patent number: 4722735
    Abstract: A process is described for the continuous dyeing of textiles in which an aqueous solution of an ionic, water-soluble dye is applied to a fabric in open width. The textile is dried to reduce the water content to at most about 1% and it is then contacted with a nonionic, high-boiling organic liquid in which the ionic dye is substantially completely insoluble while the liquid is maintained at an elevated temperature, i.e., about 325.degree. F.-450.degree. F., for a period of time sufficient to cause the dye to diffuse into the fibers and to fix the ionic dye to the fibers of the textile. Any remainig high-boiling liquid is subsequently removed from the fabric.
    Type: Grant
    Filed: January 9, 1987
    Date of Patent: February 2, 1988
    Assignee: Burlington Industries, Inc.
    Inventor: George L. Brodmann
  • Patent number: 4417897
    Abstract: An improved process for preparing white or colored burn-out effects on textile materials containing hydrophobic fibers and cellulose fibers which process comprises applying to the material a dyeing liquor or printing paste containing at least one disperse dyestuff for dyeing the hydrophobic fibers alone or mixed with dyestuff for dyeing the cellulose fibers, applying a burn-out agent to the textile material in the form of a pattern, and then heat-treating the textile material at about 100.degree. to 240.degree. C. whereby the dyestuff is fixed and the burnout effect is produced, wherein the improvement comprises said dyeing liquor or print paste contains at least one disperse dyestuff which is discharged by the burn-out agent.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: November 29, 1983
    Assignee: Cassella Aktiengesellschaft
    Inventors: Theo Stahl, Ulrich Buhler
  • Patent number: 4225368
    Abstract: This invention relates to organic dye compositions of improved mechanical properties and to a method of coating the dye with an inert coating material which enables the production of pour-castable colored smoke-producing compositions of high solids loading, particularly when a red dye e.g. Disperse Red 9, is employed.
    Type: Grant
    Filed: June 26, 1979
    Date of Patent: September 30, 1980
    Assignee: Canadian Department of National Defence
    Inventors: Joseph E. G. Couture, Joseph N. A. Roy