Dyeing method for fur with heterochromatic color

摘要

PURPOSE: A method for dyeing natural animal fur from beaver, raccoon, marten, fox, and nutria is provided to dye long fur and short fur with heterochromatic color. CONSTITUTION: A method for dyeing natural fur with heterochromatic color comprises: a step of diluting hydrogen peroxide and bleaching the entire or desired part of the natural fur with bleaching solution at 60 Deg. C. for 3-4 hours; a step of dipping the natural fur in a dyeing solution containing 30 wt% of sodium chloride, 30 wt% of azo-based acidic dye of certain color, and 40 wt% of formic acid for 2-10 hours; a step of performing a primary dyeing process of the natural at 65 Deg. C. for 30 minutes; a step of dipping the fur in a composition containing 20-30 wt% of sodium chloride, 1.5-3.0 wt% of formic acid, 1.5-3.0 wt% of soda ash, 20-35 wt% of discharge printing agent, and 30-45 wt% of leveling agent for 24 hours; a step of washing and drying the fur; a step of dipping the fur a dyeing solution containing 30 wt% of sodium chloride, 30 wt% of azo-based acidic dye with different color from the azo-based acidic dye of primary dyeing, and 40 wt% of formic acid for 2-10 hours; and a step of performing secondary dyeing process of the fur at 60 Deg. C. for 3-4 hours.