Discharge printing process of fibers dyed with indigo dye and/or sulfide dye
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United States of America Patent
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Issued Date -
Mar 8, 2007
app pub date -
Jun 1, 2006
filing date -
Sep 7, 2005
priority date (Note) -
Abandoned
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Abstract
The object of the invention is to provide a discharging agent for fibers dyed with an indigo dye and/or a sulfide dye, which enables stable discharge printing treatment to give the fibers soft texture, bright coloration and contours, which also enables printing. The object was achieved by the following: (1) A discharging agent for a fiber dyed with an indigo dye and/or a sulfide dye, consisting of chlorite and a viscosity-increasing nonionic surfactant, (2) a discharging agent according to the item (1), wherein the viscosity-increasing nonionic surfactant is a nonionic surfactant having HLB of 15 or higher, (3) a discharge printing process of a fabric or a sewing product dyed with an indigo dye and/or a sulfide dye, characterized in that a discharging agent having an adjusted pH of 7-12 and consisting of chlorite and a viscosity-increasing nonionic surfactant is printed on or applied to the fabric or the sewing product, followed by the application of a heat treatment, and (4) a discharge printing process according to the item (3), wherein the discharge printing treatment is performed simultaneously with, before, or after a coloring treatment.
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