Process for making fasciated spun yarn

Details Process for making fasciated spun yarn Process for making fasciated spun yarn

1982-07-07

1984-02-07

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

With drafting

57204, 57293, D01H 528, D02G 322

Patent

active

044295235

ABSTRACT:
A process for making a fasciated spun yarn by drafting and pneumatically false twisting a bundle of staple fibers is disclosed. In the method, the width W (mm) of a bundle of fibers measured just upstream of the nip point of a pair of second rollers of a drafting zone and a yarn count N (Nm) of the spun yarn are set to satisfy the following equation: ##EQU1## and the overfeed ratio of the bundle of fibers during the false twisting operation is 5% at most. The fasciated spun yarn made by this process has a straight shape, resembles a ring-spun yarn and has sufficiently stable strength.

REFERENCES:
patent: 3079746 (1963-03-01), Field, Jr.
patent: 3487619 (1970-01-01), Field, Jr.
patent: 3992865 (1976-11-01), Tuchida et al.
patent: 4003194 (1977-01-01), Yamagata et al.
patent: 4112658 (1978-09-01), Morihashi
patent: 4183202 (1980-01-01), Morihashi
patent: 4351146 (1982-09-01), Faure et al.

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