Patents Assigned to Societe de la Viscose Suisse
  • Patent number: 3935370
    Abstract: Flock fibers suitable for use in the manufacture of pile fabrics and materials by electrostatic flocking are treated to improve the electric conductivity of the fibers as well as enlarging the range of humidity in which the fibers retain good conductivity, flow, gliding and spring capacity characterstics. The process comprises treating the fibers, such as polyamides, polyesters, polyacrylonitriles and cellulose triacetate, with an aqueous solution containing a water-soluble alum, and tannin. In a preferred embodiment, the treating solution also includes a water-soluble alkali- or ammonium salt.
    Type: Grant
    Filed: August 27, 1973
    Date of Patent: January 27, 1976
    Assignee: Societe de la Viscose Suisse
    Inventor: Toni Marti