Method of applying foamed dyeliquors to fibrous substrates or th

Details Method of applying foamed dyeliquors to fibrous substrates or th Method of applying foamed dyeliquors to fibrous substrates or th

1982-12-15

1985-04-23

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Foam dye composition or process

8478, 8151, 8929, D06B 1100, D06B 1900

Patent

active

045127727

ABSTRACT:
Two or more liquid treating agents which are to be applied to a stationary or running substrate are formed ahead of a collecting unit which thereupon admits a foamed compound composition into the applicator wherein the composition passes through the interstices of a screen so that it is reconverted into a liquid prior to contacting the substrate. The collecting unit can comprise or may be followed by a mixer, depending upon whether or not the constituents of the compound composition are to be converted into a homogeneous foam. The collecting unit receives discrete streams of foamed treating compositions, e.g., in the primary colors, from discrete foam generators each of which is followed by a storing device and by a regulating device, such as a valve which is adjustable by hand and/or by a computer. The valves can regulate the rate of flow of foamed treating compositions from the respective storing devices to the collecting unit as well as the rate at which the respective foam generators admit foamed treating compositions to the associated storing devices.

REFERENCES:
patent: 3155540 (1964-11-01), Loeffler et al.
patent: 3990840 (1976-11-01), von der Eltz et al.
patent: 4061001 (1977-12-01), von der Eltz et al.
patent: 4297860 (1981-11-01), Pacifici et al.
patent: 4384867 (1983-05-01), Gruber

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