Patents Assigned to Pierre Wahl
  • Texturizing a textile product
    Patent number: 4192048
    Abstract: A textile product formed of at least one thermoplastic yarn is texturized by subjecting the yarn simultaneously to a mechanical traction force and a high frequency electrical field applied at local points on the yarn. In order to increase the efficiency of texturizing, the yarn is moistened before it is subjected to the electrical field.
    Type: Grant
    Filed: December 2, 1977
    Date of Patent: March 11, 1980
    Assignee: Pierre Wahl
    Inventor: Jean J. Robillard