Patents Assigned to L. Payen et Cie, Societe Anonyme
  • Process and machine for the continuous production of an elastane-based elastic yarn
    Patent number: 5154044
    Abstract: An apparatus and process for continuous production of a covered elastane-based yarn is shown in which a partially stretched multi-filament yarn is twisted about a tensioned bare elastane yarn, at less than 500 revolutions per meter, and then heated and stretched again to complete the residual stretching of both parts of the covered yarn.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: October 13, 1992
    Assignees: L. Payen et Cie, Societe Anonyme, Pierre Payen
    Inventor: Pierre Payen