Dyeing of garments with low-substantivity vat dyes

Details Dyeing of garments with low-substantivity vat dyes Dyeing of garments with low-substantivity vat dyes

1988-05-16

1989-07-11

Hornsby, Harvey C.

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Special forms and forming

8159, D06B 330

Patent

active

048457892

ABSTRACT:
The present invention provides a process for the rapid dyeing of a series of successive garments or batches of garments with a vat dye, preferably indigo dye, wherein the garments while contained are submerged in and impregnated with the dyeing solution in a first bath, then removed from it while draining the dyeing solution and conserving it for re-use, then promptly immersed in an oxidizing solution in a second bath so as to shock oxidize the dye present in the garments, then removed from the oxidizing bath while draining the oxidizing solution and preserving it for re-use, and then washed and dried, and wherein the time elapsed between removal of the garments from the dyeing solution and their immersion in the oxidizing solution is less than 5 minutes.

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