Process for the wet treatment of textile material

Details Process for the wet treatment of textile material Process for the wet treatment of textile material

1989-01-27

1990-05-29

Stinson, Frankie L.

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Combined liquid and gas or vapor

8152, 81551, 8158, D06B 310

Patent

active

049283383

ABSTRACT:
A process for the wet treatment of textile materials having capillary-active properties. The textile material, for example, in the form of yarn bobbins, is placed into a treatment vessel with a heated liquid containing chemicals. A negative pressure is generated in the treatment vessel until the liquid boils viborously. The negative pressure is created by means of a vacuum pump connected to the treatment vessel through an intermediate vessel, a liquid separator, pipelines and valves. Simultaneously, a gas, for example, nitrogen, air or oxygen is conducted through a valve into the liquid, so that the entire liquid volume is transformed into a froth having fine pores. The vacuum treatment step is followed by an intermediate treatment step during which the gas valve is closed and the liquid is circulated by means of a circulating pump. The liquid is thus reheated and the vacuum reestablished.

REFERENCES:
patent: 3145555 (1964-08-01), Krantz
patent: 3418065 (1968-12-01), Blount, Jr.
patent: 3600731 (1971-08-01), Bergholtz
patent: 3775055 (1973-11-01), Wedler
patent: 3871821 (1975-03-01), Winn et al.
patent: 3967923 (1976-07-01), Ameling
patent: 3974534 (1976-08-01), Yelton et al.
patent: 4369035 (1983-01-01), Karrer et al.
patent: 4427409 (1984-01-01), Gregorian et al.
patent: 4499620 (1985-02-01), Minagawa
Woskresenskij, P., Moscow, 1962, pp. 355-357.

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