Method for producing multifilament thermoplastic yarn having lat

Details Method for producing multifilament thermoplastic yarn having lat Method for producing multifilament thermoplastic yarn having lat

1979-05-29

1981-05-05

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

With crimping or crinkling of strands of filaments

28214, 156 72, 156435, 264103, 264177F, 2642108, 2642905, D01D 522

Patent

active

042658497

ABSTRACT:
A multifilament thermoplastic yarn and process for the formation thereof which, when tufted or woven into a fabric, presents a grass-like appearance. The yarn is made by melt spinning and water quenching a melt-spinnable synthetic organic thermoplastic polymer, such as polypropylene, drawing the filaments, surface heating at least a portion of the thus drawn filaments, cooling the thus surface heated filaments and reheating the thus cooled filaments either before or after tufting, weaving or otherwise processing into a fabric to develop latent crimp in the yarn. Also disclosed is a carpet fabric employing the yarn and exhibiting grass-like appearance with exceptional cover and relatively soft hand.

REFERENCES:
patent: 3152380 (1964-10-01), Martin
patent: 3323190 (1967-06-01), Boldniem
patent: 3374302 (1968-03-01), Stanley
patent: 3457338 (1969-07-01), Leferve
patent: 3488940 (1970-01-01), Mehta
patent: 3498044 (1970-03-01), Hopkins
patent: 3505444 (1976-04-01), Stanley
patent: 3621088 (1971-11-01), Hatcher et al.
patent: 3715422 (1973-02-01), Chopra
patent: 3803675 (1974-04-01), Waterhouse
patent: 3995420 (1976-12-01), Ohse et al.

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