Sewing – Products – Sewn web or sheet
Patent
1979-07-12
1982-10-26
Petrakes, John
Sewing
Products
Sewn web or sheet
57205, 57247, 57251, 57284, 57290, 57293, 57297, D05C 1702, D02G 102, D02G 326
Patent
active
043555926
ABSTRACT:
A pile yarn for a carpet and a cut pile carpet.
A bulky yarn of a polyamide multifilament is fed to a false twisting and heat setting device where filaments in the yarn are thermally and partially adhered to each other while the yarn is false twisted. A bulky cohesive continuous multifilament yarn thus obtained has alternate twists therein along the lengthwise direction thereof and a latent torque therein, and after it is tufted on a substrate of a carpet as a pile yarn and after the piles are cut, the carpet is heat treated, preferably by means of saturated or superheated steam. The torque in the cut piles is developed to create true twists.
REFERENCES:
patent: 2815559 (1957-12-01), Robinson
patent: 2961010 (1960-11-01), Berry
patent: 3058291 (1962-10-01), Heberlein et al.
patent: 3553953 (1971-01-01), Ponson
patent: 3611698 (1971-10-01), Horn
patent: 3828542 (1974-08-01), Boutonnet et al.
patent: 3967441 (1976-07-01), Yasuzuka et al.
patent: 3968638 (1976-07-01), Norton et al.
patent: 3971200 (1976-07-01), Richter
patent: 4114549 (1978-09-01), Chambley et al.
Maruo Kiyoshi
Oohara Mikio
Tajiri Koji
Petrakes John
Teijin Limited
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