Dyeing of garments with low-substantivity vat dyes
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United States of America Patent
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-
Jul 11, 1989
Issued Date -
N/A
app pub date -
May 16, 1988
filing date -
Apr 23, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
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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