Moisture control system for controlling the amount of chemical a

Bleaching and dyeing; fluid treatment and chemical modification – Fluid treatment – Special forms and forming

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15319, 68 191, 68 20, 68 22R, 68 62, 134 18, 134 21, 162198, 162252, 162279, D06B 1504, D06B 2100, D06B 2328

Patent

active

044479247

ABSTRACT:
A moisture control system is provided for controlling the amount of chemical added to a fabric. The system includes a suction pipe having a slot therein and a fabric positioned to pass over the slot. A vacuum source is connected through conduit means to the suction pipe. A source of liquid is provided including a predetermined percentage of chemical therein to be added to the fabric. Liquid from the liquid source is added to the fabric and the fabric containing the liquid from the liquid source is advanced over the suction pipe whereupon vacuum is applied to the fabric to deliquefy it. The vacuum source is set to provide a predetermined vacuum depending on the chemical concentration of the liquid and the composition of the fabric. As the fabric passes over the slot a change in the vacuum is sensed and the vacuum source is actuated to retain the vacuum to the predetermined condition thereby maintaining a constant moisture level and amount of added chemical in the fabric.

REFERENCES:
patent: 3250099 (1966-05-01), North et al.
patent: 3797281 (1974-03-01), Norton
patent: 3806405 (1974-04-01), Heidweiller
patent: 3997928 (1976-12-01), Leifeld
patent: 4329201 (1982-05-01), Bolton

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