分散染料免蒸洗印花糊料的制备及其性能

Preparation and performance of steaming-free and washing-free printing paste with disperse dyes

为解决合成增稠剂在印花过程中对电解质敏感及色浆渗化的问题,通过对合成增稠剂筛选复配,制备出适用于分散染料免蒸洗印花的增稠剂SX-608F。对其黏度、流变性能、染料相容性、抱水性进行测试与表征,并对印花织物的表观得色量、皂洗色牢度和摩擦色牢度进行测试与分析。结果表明:增稠剂SX-608F具有假塑性流体特征,黏度随剪切速率的增加而下降。其印花黏度指数为0.197,触变性良好,黏度回复率为90.40%;在0.1~500 rad/s角频率范围内,储能模量大于损耗模量,损耗系数小于1;与海藻酸钠糊料相比,增稠剂SX-608F印花织物表观得色量高,耐摩擦色牢度和耐皂洗色牢度均可达到4级以上,印制过程无需蒸化和水洗。

In order to solve the problems of electrolyte sensitivity and color paste infiltration of synthetic thickener in printing process,thickener SX-608F,which is suitable for steaming-free and washing-free printing with disperse dyes,was prepared by screening and compounding.The viscosity,rheological properties,dye compatibility,water holding capacity was analyzed.The apparent color yield,soaping fastness and rubbing fastness of printed fabrics were tested and evaluated.The results showed that thickener SX-608F has the characteristics of pseudoplastic fluid,and the viscosity decreased with the increase of shear rate.The printing viscosity index was 0.197,the thixotropy was good and the viscosity recovery rate was 90.40%.In the frequency range of 0.1~500 rad/s,the storage modulus is larger than the loss modulus,the loss coefficient is less than 1.The printed products of SX-608F thickener have high apparent color yield compared to sodium alginate paste,the soaping fastness and rubbing fastness could reach more than 4 grade.The printing process did not require steaming and washing.