Direct inkjet digital printing is a relatively green and environmentally friendly textile printing method with a wide range of applications in the textile printing and dyeing industry. However, pretreatment of the fabric is required before digital printing, which will generate certain energy consumption and wastewater. In this study, a digital direct inkjet printing method was developed to improve the printing accuracy of poly(ethylene terephthalate) (PET) fabrics without any pretreatment. A kind of direct inkjet printing ink was prepared by the response change in temperature viscosity. The increase in viscosity inhibits ink bleeding on the fabric, thereby improving printing accuracy. A thermosensitive direct inkjet printing disperse dye ink was prepared by adding cetyltrimethylammonium bromide (CTAB) and 3-methylsalicylic acid (3MS) to the ink. By evaluating the changes in the ink particle size, shear viscosity, and temperature viscosity, it was found that this thermosensitive ink has an excellent average particle size and special changes in viscosity with increasing temperature. When this heat-sensitive ink is printed on a polyester fabric, the fabric does not need pretreatment to improve the clarity of printing, and the printed fabric has satisfactory color fastness to friction and washing.

中文翻译：

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将分散染料油墨直接印刷到聚酯织物上，无需化学预处理


直接喷墨数码印花是一种比较绿色环保的纺织品印花方法，在纺织印染行业有着广泛的应用。但是，在数字印花之前需要对织物进行预处理，这将产生一定的能耗和废水。在本研究中，开发了一种数字直接喷墨打印方法，以提高聚对苯二甲酸乙二醇酯 （PET） 织物的打印精度，而无需任何预处理。利用温度粘度的响应变化制备了一种直接喷墨印刷油墨。粘度的增加抑制了织物上的渗墨，从而提高了印刷精度。通过向墨水中加入十六烷基三甲基溴化铵 （CTAB） 和 3-甲基水杨酸 （3MS） 制备热敏直接喷墨打印分散染料墨水。通过评估油墨粒径、剪切粘度和温度粘度的变化，发现这种热敏油墨具有优异的平均粒径和粘度随温度升高的特殊变化。当这种热敏油墨印在涤纶织物上时，织物不需要预处理以提高印刷的透明度，并且印刷织物具有令人满意的耐摩擦和耐洗涤色牢度。