蚕丝/棉交织物的阳离子改性及其染色性能

Cationic modification of silk/cotton union fabric and its dyeing properties

为实现活性染料无盐碱清洁染色,采用色媒体预处理蚕丝/棉交织物,并使用不同活性染料对改性后的蚕丝/棉交织物进行一浴法染色。通过分析同色平衡值K及色差△E,优选适合改性蚕丝/棉交织物一浴法染色的三原色活性染料。讨论了色媒体用量、改性温度、改性时间等因素对蚕丝/棉交织物同浴染色的影响,并通过正交试验分析确定了蚕丝/棉交织物改性的最佳工艺。结果表明,改性蚕丝/棉织物无盐碱染色工艺与传统染色工艺相比,上染率、固色率、同色性和纤维强力都得到提高,且染色牢度相当。

Silk/cotton union fabric was pretreated with color media, iollowed lay dyeing wlm mHerem reactive dyes in one-bath method aiming at achieving clean reactive dyeing without salt or alkali. The trichromatic reactive dyes suitable for dyeing the modified silk/cotton union fabric in one bath were selected through optimizing via analyzing the balance value of union dyeing K and color-difference A E. The influence of dosages of color media, modification temperature and time on the one bath dyed silk/ cotton union fabric was discussed, and the optimal modification process was obtained by orthogonal experiment. The results indicated that compared with the conventional dyeing process, this clean reactive dyeing of modified silk/cotton union fabric without salt or alkali is characterized by improved dye-uptake and fixation rate, better union color, enhanced fiber strength, and equivalent color fastness.