Textiles: spinning – twisting – and twining – Apparatus and processes – Elements
Patent
1976-09-02
1977-11-29
Queisser, Richard C.
Textiles: spinning, twisting, and twining
Apparatus and processes
Elements
420373, D02G 304
Patent
active
040599493
ABSTRACT:
A composite yarn exhibiting heather dyeing capability is comprised of two groups of filaments composed of two differently dyeable polymers wherein filaments of one group are homofilaments of one polymer and filaments of the other group are of a substantially concentric sheath core structure with the sheath being of the other polymer and the core being of the same polymer as the homofilaments. The yarn dyes to give a heather appearance which is different from the appearance expected based on the polymer composition of the yarn.
REFERENCES:
patent: 3103732 (1963-09-01), Woodell
patent: 3593513 (1971-07-01), Reese
patent: 3604197 (1971-09-01), Sckiguchi et al.
patent: 3622264 (1971-11-01), Brown et al.
E. I. Du Pont de Nemours and Company
Gorenstein Charles
Queisser Richard C.
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