Waterless dyeing method of dispersed dye
A disperse dye and anhydrous dyeing technology, which is applied in dyeing, textiles and papermaking, can solve the problems of large environmental pollution, high technical requirements, and high processing costs, and achieve the effect of solving pollution problems, simple formula, and easy separation
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[0051] Example 1
[0052] Anhydrous dip dyeing
[0053] Disperse Red HBGL 0.06g
[0054] 1-Butyl-3-methylimidazolium bromide ([Bmim]Br) 50g
[0055] 2g of pure polyester fabric was dyed at 90°C for 1.5 hours on a normal temperature dyeing machine (first heated to 60°C at a heating rate of 3°C / min, then heated to 90°C at 1°C / min, and kept for 1.5 hours), cooled to 30°C, After 20 minutes, 7g of ethanol was added to wash, and the ionic liquid and disperse dye were separated by filtration and vacuum distillation, and the ionic liquid and disperse dye were recovered. The dyed sample was uniformly bright red.
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[0056] Example 2
[0057] Anhydrous hot melt pad dyeing
[0058] Disperse Red HBGL 0.5g
[0059] 1-Butyl-3-methylimidazolium bromide ([Bmim]Br) 50g
[0060] Put 5g of pure polyester fabric in pad dyeing solution (two dips and two pads), with a liquid rate of 70% → 90 ℃ pre-bake for 15 minutes → high temperature baking and fixation (215 ℃, 3 minutes), cool down to 30 ℃, out of the cloth, after 20 minutes Add 50g of water to wash, after filtration and vacuum distillation, the ionic liquid and the disperse dye are separated, and the ionic liquid and the disperse dye are recovered, and the dyed sample is uniformly red.
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