3417446

Information

• Patent Grant
• 3417446

• References
• Source

• Patent Number

  3,417,446

• Date Filed

  Not available

• Date Issued

  Tuesday, December 24, 1968
  56 years ago

• CPC

  • D02G1/004 - by heating fibres, filaments, yarns or threads so as to create a temperature gradient across their diameter, thereby imparting them latent asymmetrical shrinkage properties
  • D02G1/14 - using grooved rollers or gear-wheel-type members
  • D02G1/20 - Combinations of two or more of the above-mentioned operations or devices After-treatments for fixing crimp or curl
  • D02J1/226 - Surface characteristics of guiding or stretching organs

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 028 - Textiles: manufacturing