Method for dyeing textile by dye liquor prepared by mutually dissolving organic solvent and water
A technology of organic solvents and textiles, applied in dyeing, textiles and papermaking, etc., can solve the problems of poor economy, toxic substances, solvent loss and other problems of perchlorethylene solvent dyeing, and achieve an increase in the balance dyeing percentage and increase activity , Improve the effect of equilibrium adsorption
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Embodiment 1
[0027] According to the above process steps: select cotton textiles as the textiles to be dyed, the bath ratio is 1: 25, the weight of the fabric is 2% reactive red B-3BF, the volume fraction is 10% water and the volume fraction is 90% ethanol Mix well and adjust the pH to 7. Cut 1g of cotton textiles, prepare 50g / L of sodium chloride solution, soak the cotton textiles twice in sodium chloride solution, and the pressure of rolling is 10KN, and the rolling speed of textiles is 5 m / min. The liquid rate is 70%. Then put the rolled textiles into a room temperature dyeing machine filled with a dye solution prepared at a temperature of 25°C. The dye solution is gradually heated up to 50°C at a speed of 5°C / min for oscillating dyeing, and the oscillation frequency is 60 times / min. The ethanol in the liquid is recovered by the reflux condensation device during the dyeing process. Add 1mL of sodium carbonate solution to the residual solution of ethanol extracted in the dyeing machine...
Embodiment 2
[0029] According to the above process steps: select cotton textiles as the textiles to be dyed, the bath ratio is 1: 30, and the reactive red B-3BF that is 4% to the fabric, the water with a volume fraction of 30% and the isophthalic acid with a volume fraction of 70% are selected. Mix propanol evenly and adjust the pH to 7. Cut 1g of cotton textiles, prepare 50g / L of sodium sulfate solution, soak the cotton textiles twice in sodium sulfate solution, the pressure of rolling is 25KN, the speed of textiles passing through the rolls is 20 m / min, the rate of entrainment of textiles after rolling 80%. Then put the rolled textiles into a room temperature dyeing machine filled with a dye solution prepared at a temperature of 30°C. The dye solution is gradually heated up to 60°C at a rate of 5°C / min for oscillating dyeing, and the oscillation frequency is 80 times / min. The ethanol in the liquid is recovered by the reflux condensation device during the dyeing process. Add 1mL of sodi...
Embodiment 3
[0031]According to the above process steps: select cotton textiles as the textiles to be dyed, the bath ratio is 1:40, and the direct scarlet 4BS with a weight of 5% to the fabric, water with a volume fraction of 40% and ethanol with a volume fraction of 60% are uniformly mixed , adjust the pH to 7. Cut 1g of cotton textiles, prepare 50g / L sodium chloride solution, soak the cotton textiles twice in the sodium chloride solution, and roll them at a pressure of 35KN. The rolling speed of the textiles is 50 m / min. The liquid rate is 90%. Then put the rolled textiles into a room temperature dyeing machine filled with a dye solution prepared at a temperature of 40°C. The dye solution is gradually heated up to 80°C at a speed of 5°C / min for oscillating dyeing, and the oscillation frequency is 90 times / min. The ethanol in the liquid is recovered by the reflux condensation device during the dyeing process. Add 1mL of sodium carbonate solution to the residual liquid of ethanol extract...
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