To develop a process for high homochromaticity in diacetate/easy cationic dye-able polyester fiber(CA/ECDP)fabrics,disperse dyes are chosen,the build up and optimum dyeing temperature are discussed,and the color fastness to soaping,rubbing,perspiration and sunlight are tested.The results show that the build up of Red AC-GFN,orange AC-3R,navy AC-3R three dyes is better in the range of 0.5％～2％of dye concentration.When the dye concentration is 1％,and dyeing at 100 ℃ for 30 min,the dye uptake of CA/ECDP fabric is the highest and the homochromaticity is the bes.After reductive cleaning,the color fastness to soaping of CA/ECDP fabrics reaches levels 4-5,the color fastness to friction reaches levels 3 or above,the color fastness to perspiration reaches levels 4 or above,and the color fastness to sunlight reaches levels 4 or above,indicating good wearability.
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