Process and apparatus for the continuous dyeing of lengths of ma

Details Process and apparatus for the continuous dyeing of lengths of ma Process and apparatus for the continuous dyeing of lengths of ma

1973-06-29

1980-10-21

Gron, Teddy S.

Bleaching and dyeing; fluid treatment and chemical modification

Nontextile, dyeing process or product, including inorganic...

Cellulose substrate other than paper

81493, 8159, 68 50, 8476, 8650, D06P 122, D06P 520, D06B 112, D06B 1300, D06B 2324

Patent

active

042291739

ABSTRACT:
An improved process for the continuous dyeing of lengths of textile material that at least partly contain cellulose fibers by the Pad-Steam process wherein the textile material onto which dyestuff has been applied is impregnated with chemical reducing agents including an alkaline solution, is then transported into a steamer for dyestuff-fixation by steaming thereon, is then after-treated by the sequential steps of rinsing with a liquor to remove the reducing agents, oxidizing the dyestuff with a liquor, and soaping and again rinsing the material with a liquor, and then finally drying the material. The improvement in the process comprises effecting the after-treatment steps, at least partially, by forcing the appropriate liquors through the material, especially on the perforated surface of a suction drum.

REFERENCES:
patent: 1131270 (1915-03-01), Quick
patent: 2396908 (1946-03-01), Womble
patent: 2447993 (1948-08-01), Vieira
patent: 2487197 (1949-11-01), Stott et al.
patent: 2764010 (1956-09-01), Williams
patent: 3804590 (1974-04-01), Fleissner
Daiwa Vibro-Washer, American Dyestuff Reporter, vol. 53, No. 4, p. 66 (157), (Feb. 17, 1964).

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