棉织物表面处理对活性染料喷墨印花的影响

织物的表面结构和性质是影响喷墨印花颜色效果的重要因素。采用2种不同的纯棉织物,并用改性聚丙烯酰胺、石油加氢轻馏物、丙烯酸共聚物以及海藻酸钠分别对棉织物进行表面处理,分析了织物组织结构和表面处理工艺对5种活性染料喷墨印花颜色的影响。结果表明,密度低的织物经过活性染料喷墨印花后所得到的颜色比密度高的深,湿摩擦牢度略差。非离子且亲水性较好的聚丙烯酰胺处理后织物的活性染料喷墨印花颜色效果优于石油加氢轻馏物、丙烯酸共聚物以及海藻酸钠。元明粉对活性染料喷墨印花的颜色没有明显的增深作用规律。

Effect of fabric surface treatment on ink jet printing with reactive dyes

The surface structure and properties of fabrics significantly influence the color effect of inkjet prints. Modified polyacrylamide, hydrotreated light distillate, acrylic acid copolymer and sodium alginate were used, respectively, to surface-treat two different kinds of cotton fabric in order to analyze the influence of fabric structure and surface treatment on inkjet printing colors of five reactive dye inks. The results show that the high density fabric obtains deeper color and lower wet rubbing fastnesses than low density fabric. Nonionic polyacrylamide with better hydrophilicity gives the best color effect among the four kinds of surface treating agents after inkjet printing with reactive dyes. Sodium sulfate exhibits no obvious darkening effect on inkjet-printed fabrics.