Process for spinning of core/mantle yarns and yarn products

Details Process for spinning of core/mantle yarns and yarn products Process for spinning of core/mantle yarns and yarn products

1980-05-01

1982-03-30

Petrakes, John

Textiles: spinning, twisting, and twining

Strand structure

Covered or wrapped

57 5, 57 7, 57 5895, 57226, 57228, 57232, 57287, 57295, 57297, 57901, D01H 112, D02G 102, D02G 336

Patent

active

043217893

ABSTRACT:
A process for the production of a core/mantle yarn, in which a core thread is continuously conducted through a spinning zone in a gap formed between two adjacent and oppositely moving surfaces; staple fibers are fed into the path of the core thread and come into frictional contact with the moving surfaces in said zone to spin the staple fibers about the core thread; the core thread is preferably stretched during the spinning in order to bring about a defined, predetermined elastic stretch of the core thread in the spinning zone; and the core thread has a roughened surface which may be obtained by using a staple fiber yarn or thread obtained by texturizing, weaving, twisting, etc. The invention is especially characterized by an improved adherence of the fibers of the mantle to the core thread by pre-coating the core thread with an adhesive, or preferably by preapplying colloidal silicic acid to the core thread.

REFERENCES:
patent: 1950988 (1934-03-01), Luttenberger
patent: 2946181 (1960-07-01), Tissot et al.
patent: 3137991 (1964-06-01), Fairley
patent: 3153838 (1964-10-01), Pinson, Jr.
patent: 3234724 (1966-02-01), Storti
patent: 3481135 (1969-12-01), Devold
patent: 3639807 (1972-02-01), McCune
patent: 3835638 (1974-09-01), Mayer, Jr. et al.
patent: 3913310 (1975-10-01), Fehrer
patent: 4130983 (1978-12-01), Dammann et al.

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