(under subclass 252) Subject matter wherein at least one of the fibers in the strand is transversely deformed or distended into a nonlinear configuration of coils, crinkles, loops, crimps, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
205, 208, 226, 227, 239, 245, and 246+, for other twisted strand structures having crimped or bulked components therein.
282+, for processes and apparatus for manufacturing twist crimped yarns.
351, for other types of crimping or texturing combined with a twisting operation.
SEE OR SEARCH CLASS
28, Textiles: Manufacturing,
247+, for crimping or texturing operations other than twist crimping. 264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
168, for extrusion of filaments combined with crimping.