Textiles: spinning – twisting – and twining – Apparatus and processes – Elements
Patent
1988-05-09
1989-07-11
Watkins, Donald
Textiles: spinning, twisting, and twining
Apparatus and processes
Elements
57243, 57244, 57245, 57246, 57248, 57 6, 57282, D02G 338, D02G 322, D02G 102
Patent
active
048459348
ABSTRACT:
A false twisted bulky synthetic multifilament yarn of a uniform polymer consisting of at least two filament bundles of different filament deniers, with the filaments in each of said bundles having the same denier per filament. The smaller denier per filament is less than 1 dtex, and the total denier of the texturized yarn is in excess of 100 times the finer filament denier. For the production of such a multifilament yarn, the draw ratios of both filament bundles are chosen such that the difference between both draw ratios is smaller than 0.1, and both bundles are drawtexturized simultaneously at a draw ratio corresponding to the draw ratio of the filament bundle having the coarser denier per filament. Preferred end uses of the yarn are water-repellent fabrics, dust proof fabrics, and the conductive component of sports wear.
REFERENCES:
patent: 2461094 (1949-02-01), Taylor
patent: 3033240 (1962-05-01), Bottorf
patent: 3396529 (1968-08-01), Stutz
patent: 3439490 (1969-04-01), Tarkington et al.
patent: 3472017 (1969-10-01), Nakayama et al.
patent: 3608296 (1971-09-01), Taylor
patent: 4712366 (1987-12-01), Tsujimoto et al.
Hoechst AG
Watkins Donald
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