Yang Haizhen, Fang Kuanjun, Liu Xiuming, An Fangfang
School of Textiles Science and Engineering , Tianjin Polytechnic University , No. 399 Binshui Xi Road , Xiqing District, Tianjin 300387 , P. R. China.
Collaborative Innovation Center for Eco-Textiles of Shandong Province , No. 308 Ningxia Road , Qingdao 266071 , P. R. China.
ACS Appl Mater Interfaces. 2019 Aug 14;11(32):29218-29230. doi: 10.1021/acsami.9b07848. Epub 2019 Jul 31.
The porosity, roughness, and thickness of woven fabrics limit inkjet printing quality, which is extremely important for obtaining high-quality inkjet printing images on fabrics. This study reveals the application of poly[styrene-butyl acrylate-(P-vinylbenzyl trimethyl ammonium chloride)] nanospheres prepared via a soap-free emulsion polymerization approach as a novel kind of the cationization modifier for the inkjet printing of different woven cotton fabrics by the pad-cure process. It was found that the nanospheres exhibited an average diameter of 65.5 nm, a zeta potential of +57.8 mV, and a glass transition temperature of 94.7 °C. The nanospheres deposited on three cotton fabrics through the dip-rolling process, resulting in the increase of zeta potential, hydrophobicity and thickness of the fabric, and the decrease of porosity and roughness. The high-quality inkjet printing images can be obtained on fabrics with different structures owing to the differences in zeta potential, hydrophobicity, porosity, roughness, and thickness of fabrics. The plain, twill, and honeycomb weave fabrics obtained high-quality inkjet printing images for portraits, oil paintings, and landscape paintings, respectively. The nanospheres could strongly adsorb on the fiber by electrostatic attraction. The reactive dye molecules in the inks could react with the cationized fibers by electrostatic attractive force, resulting in the increase of the color strength, fixation rates, and outline sharpness. The nanosphere cationization of different woven fabrics offers a new potential method for obtaining high-quality patterns without significantly affecting the fabric handle.
机织织物的孔隙率、粗糙度和厚度会限制喷墨打印质量，而这对于在织物上获得高质量的喷墨打印图像极为重要。本研究揭示了通过无皂乳液聚合方法制备的聚[苯乙烯-丙烯酸丁酯-(对乙烯基苄基三甲基氯化铵)]纳米球作为一种新型阳离子化改性剂，用于不同机织棉织物通过浸轧-焙烘工艺进行喷墨打印的应用。研究发现，纳米球的平均直径为65.5 nm，zeta电位为+57.8 mV，玻璃化转变温度为94.7℃。纳米球通过浸轧工艺沉积在三种棉织物上，导致织物的zeta电位、疏水性和厚度增加，孔隙率和粗糙度降低。由于织物的zeta电位、疏水性、孔隙率、粗糙度和厚度存在差异，因此可以在具有不同结构的织物上获得高质量的喷墨打印图像。平纹、斜纹和蜂巢织物分别获得了用于人像、油画和风景画的高质量喷墨打印图像。纳米球可通过静电引力强烈吸附在纤维上。油墨中的活性染料分子可通过静电引力与阳离子化纤维发生反应，从而提高色强度、固色率和轮廓清晰度。对不同机织织物进行纳米球阳离子化处理，为获得高质量图案提供了一种新的潜在方法，且不会显著影响织物手感。
