D - Textiles – Paper – 04 – B
Patent
D - Textiles, Paper
04
B
66/91
D04B 39/00 (2006.01)
Patent
CA 1149185
ABSTRACT OF THE DISCLOSURE Method and apparatus are disclosed for producing material having on one side a multiplicity of upstanding hook- like engaging elements suitable for repeated face-to-face engagement and disengagement with a material having a multiplicity of upstanding pile loop-like mating engaging elements. The material has a base knitted fabric and a plurality of upstanding monofilamentary members interknitted into the base fabric, with a hook-like engaging element positioned at the upper end of each upstanding member. The material is produced by knitting a base fabric of multi- filamentary yarn material and simultaneously knitting about lancets a series of monofilamentary pile loops which are then contacted by a heated member. The heated member melts the crest portions of the loops and relative motion between the loops and the heated member results in the formation of the hook-like elements at the upper end of each monofilamentary members, with each such element having a configuration in which at least one end portion is generally arcuate and the opposite end portion is generally tapered.
393850
Aeschbach Jurg
Rosa Edmund
Osler Hoskin & Harcourt Llp
Velcro Usa Inc.
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