Method of producing threads or fibers of synthetic materials

Details Method of producing threads or fibers of synthetic materials Method of producing threads or fibers of synthetic materials

1975-12-18

1977-05-24

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

To form particulate product

82 56, 264157, 264158, 264290R, B29D 718

Patent

active

040255980

ABSTRACT:
A method of producing threads and fibers of synthetic materials uses a cylindrically-shaped body of the synthetic material which is allowed to rotate against a scratching tool and a peeling knife arranged to follow the scratching tool in the direction of rotation. The peeled-off curtain of parallel threads is stretched, possibly while being simultaneously heated, and possibly the threads are cut to form a staple fiber or are ground to a short-staple floccule. A device for carrying out the aforementioned method, has a turning mechanism, a foil-peeling knife secured to a carriage of the turning mechanism, and a scratching tool arranged to precede the peeling knife.

REFERENCES:
patent: 1756172 (1930-04-01), Bommer
patent: 1951853 (1934-03-01), Walsh
patent: 2158086 (1939-05-01), Roberts et al.
patent: 2642625 (1953-06-01), Peck
patent: 2728950 (1958-01-01), Annesser
patent: 3198860 (1965-08-01), Kimmel et al.
patent: 3348264 (1967-10-01), Rice et al.
patent: 3524789 (1970-08-01), Olsen
patent: 3676243 (1972-07-01), Sasshofer et al.
patent: 3869831 (1975-03-01), Gibb

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