Tufted carpeting having stitches thermally bonded to backing

Details Tufted carpeting having stitches thermally bonded to backing Tufted carpeting having stitches thermally bonded to backing

1986-09-16

1987-11-10

McCamish, Marion C.

Stock material or miscellaneous articles

Three dimension imitation or 'treated' natural product

Flora

156 72, 428 95, B32B 3300

Patent

active

047057068

ABSTRACT:
The back-loops of the stitches of pile yarn of a tufted carpet are fastened to the backing by thermal bonding, obviating the need for applying an adhesive coating to the underside of the backing. By preference, the thermal bonding is accomplished by using as the pile yarn a yarn made of or incorporating a synthetic thermoplastic material which becomes tacky at a temperature below that at which the backing is adversely affected. For instance, yarn made of or containing polyethylene may be thermally bonded to a backing made of nylon. The backing acts as a sufficient thermal barrier or heat sink as to prevent damage to the face pile during application of heat to the underside of the backing while conducting the thermal bonding step. Where other backings and coatings are omitted, a tufted carpet of superior porosity may be made, e.g. for use as a sand-filled artificial turf.

REFERENCES:
patent: 3285797 (1966-11-01), Harrison et al.
patent: 3616137 (1971-10-01), Horton
patent: 4426415 (1984-01-01), Avery

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