Method of rendering fabrics stretchable

• US 3,316,610 A
• Filed: 12/02/1963
• Issued: 05/02/1967
• Est. Priority Date: 11/30/1962
• Status: Expired due to Term

• Current Assignee: Windle Manock Geoffrey
• Original Assignee: Windle Manock Geoffrey
• Inventors: WINDLE MANOCK GEOFFREY
• Application Number:
  US04/327,215
• Time in Patent Office: 1,247 Days
• US Class Current: 28/155
• CPC Class Codes: D03D 15/56 elastic
• CPC Class Codes: D06C 29/00 Finishing or dressing, of textile fabrics, not provided for in the preceding groups
• CPC Class Codes: D06C 7/02 Setting

Claims

1. A PROCESS FOR IMPARTING STRETCH CHARACTERISTICS TO A FABRIC WOVEN FROM TWO SETS OF PARALLEL YARNS, ONE OF SAID SETS INCLUDING YARNS COMPRISING A PROPORTION OF SYNTHETIC THERMOPLASTIC FIBRES HAVING A GLASS-RUBBER TRANSITION TEMPERATURE WHEN WET, ABOVE 80* C., SAID PROCESS COMPRISING:

STRETCHING THE FABRIC IN THE DIRECTION OF THE OTHER SET OF YARNS TO REMOVE ONDULATIONS THEREFROM, AS MUCH AS POSSIBLE WITHOUT BREAKING THE YARNS, WHILE ALLOWING THE YARNS IN SAID ONE SET TO TELAX THEREBY TO INCREASE THE YARN CRIMP THERIN AND THERBY ESTABLISHING CRIMP INTERCHANGE BETWEEN THE TWO SETS OF YARNS;

HEAT-SETTING THE INCREASED CRIMP IN THE YARNS IN SAID ONE SET;

AND COOLING THE FABRIC TO BELOW THE RUBBER TRANSITION TEMPERATURE OF THE FIBRES IN SAID ONE SET BEFORE REMOVING A SUBSTANTIAL PROPORTION OF THE STRETCHING FORCE SO AS TO MAINTAIN SAID CRIMP INTERCHANGE.