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
Inactive Publication Date: 2012-11-14
DONGHUA UNIV
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The invention relates to a waterless dyeing method of dispersed dye, comprising: (1) taking an ionic liquid as a solvent where the dispersed dye is dissolved; (2) dyeing dacron according to an ionic liquid impregnating method and an ionic liquid hot melt pad dyeing method; and (3) recycling the ionic liquid and the dye by an alcohol or water distillation circulation method. The dyeing method and a formula are simple, and the operation is convenient; during dye bath, since no dyeing auxiliaries such as a dispersing agent and a high temperature leveling agent are needed, the problems of dyeing waste water caused by the dyeing auxiliaries themselves and the toxicity of a carrier are solved; and in addition, the ionic liquid in the residual dyeing liquid and the dye can be recycled.
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