PROCESS FOR TREATING PIECES OF FABRIC DYED WITH A VAT DYE

摘要

1. Process for the treatment of fabrics dyed as a roll with a vat dye and withstanding action of the caustic soda, said fabrics being previously submitted to a soda deboiling followed by a warm bleaching with peroxide of hydrogen, a mercerization to 20 degrees Be and a dyeing with vat dye, characterized in that it comprises a second mercerization between 25 and 45 degrees Be before the stiffening with starch and lightening agent.