Polyester cotton short-process dyeing process

The invention discloses a polyester cotton short-process dyeing process which comprises the following steps: firstly, carrying out surface modification on a polyester cotton fabric by adopting a cationic modifier, and then dyeing the polyester cotton fabric by adopting a one-bath two-step method, the disperse dye micelle is prepared by encapsulating a disperse dye with an amphiphilic polymer containing an imine bond. According to the method, the use of alkali and salt can be reduced, the cotton and the polyester are dyed in two stages by adjusting the pH value of the dye liquor, so that the mutual interference of the reactive dye and the disperse dye is reduced, both the reactive dye and the disperse dye have very high dye uptake, and the polyester-mixed cotton cloth sample dyed by the process has the advantages of full color and excellent friction resistance and light fastness. 本发明公开了一种涤棉短流程染色工艺，首先采用阳离子改性剂对涤棉织物进行表面改性，然后采用一浴两步法对涤棉织物进行染色，其中染液包括以下组分：活性染料、元明粉、分散染料胶束，所述分散染料胶束由含有亚胺键的两亲性聚合物包封分散染料制备而成。该方法可减少碱和盐的使用，通