Process for calendering knit fabrics
Light weight knit fabrics of reduced air permeability and light transmission as well as decreased susceptibility to snagging are provided by a calendering process that involves selecting a dyed knit fabric composed of fibers from the group of (1) at least 40% by weight of polyester fiber and from 0 to 60% by weight of a fiber of the group consisting of wool, cotton, nylon, and acrylic fiber or (2) about 5-30% by weight of a spandex fiber and from 70 to 95% by weight of a fiber of the group consisting of wool, cotton, nylon, polyester and acrylic fiber and calendering the back side of the fabric at a calender roll temperature between about 200.degree. to 320.degree. F., at a calender roll pressure of between about 0.5 to 1.0 ton per linear inch and at a calender roll surface speed of from 10 to 30 yards per minute.
Type: Grant
Filed: Sep 6, 1979
Date of Patent: Jan 6, 1981
Inventor: Winfried T. Holfeld (Wilmington, DE)
Application Number: 6/73,017
International Classification: D06F 1502;
