Textiles: spinning – twisting – and twining – Apparatus and processes – Web material
Patent
1976-02-04
1977-10-04
Watkins, Donald
Textiles: spinning, twisting, and twining
Apparatus and processes
Web material
57164, D01H 1330
Patent
active
040516512
ABSTRACT:
Method and apparatus for wetting thread as it is being twisted in a double twist twisting spindle assembly, preferably by thread contact with the wettable guide or contacting surface formed by the inner wall of a balloon limiting mantle which encircles the twist spindle. The method essentially requires a liquid thread treating agent to be delivered or directed onto the thread contacting surface under regulated pressure impulses in an amount which provides a predetermined takeup of the liquid by the thread. Suitable apparatus includes dosing means wherein the pressure on the liquid can be alternately raised and lowered to create a regulated pattern of pressure impulses, for example by using a suitable impulse generator to regulate the pressure impulses. There is provided a more effective and controlled wetting of the double twisted threads.
REFERENCES:
patent: 3159962 (1964-12-01), Franzen
patent: 3295305 (1967-01-01), Nimtz
patent: 3295306 (1967-01-01), Rehn
patent: 3429113 (1969-02-01), Nimtz et al.
patent: 3563019 (1971-02-01), Greive et al.
patent: 3638415 (1972-02-01), Andrews
patent: 3939635 (1976-02-01), Rehn et al.
Otten Klaus-Detlef
Wahlen Antonius
Barmag Barmer Maschinenfabrik Aktiengesellschaft
Watkins Donald
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