| 摘要 |
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.
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