(under subclass 247) Method or apparatus wherein the texturing is effected by developing or releasing internal strains or stresses in the thread to cause nonlinear deformation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
103, for fiber entangling and interlocking by latent bulk or crimp development in a nonwoven article or structure.
SEE OR SEARCH CLASS
264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
342+, for treating a shaped or treated article, inclusive of thread, to decrease the surface area thereof.
