A PROCESS FOR REDUCING VAT DYES IN A CONTINUOUS DYEING PLANT FOR TEXTILE PROCESSING.

摘要

A process for reducing vat ayes in a continuous dyeing plant for textile processing, said process compri-sing preparing in a feeder tank an aqueous alkaline re ducing solution and feeding said reducing solution from said feeder tank into a developing trough containing the vat dyes for reducing and fixing the vat dyes on textile materials passing continually through said developing trough, electrolysis being effected in said reducing solu-tion in the feeder tank so that the generated hydrogen offsets the diminution in the reducing effect of the re-ducing solution because of atmospheric oxygen and /or the oxygen dissolved in said solution.