水性聚丙烯酸酯对涂层商标织物图案打印效果的影响

Influence of waterborne polyacrylate on printing effect of coated label fabrics

为解决涂层商标织物打印时吸墨速干性能差、打印图案不清晰等问题,通过对涂层剂粒径、涂层浆料流变性能,以及涂层商标织物的质量损失率、接触角和清晰度等性能进行测试,研究不同改性结构的涂层剂对涂层商标织物打印效果的影响,建立涂层表面结构与打印效果间的相关性。结果表明:涂层商标织物0.001~0.010μm^2孔面积区间的孔隙率高于0.509%时,喷印图案易出现露白情况,且随着孔隙率的升高,露白现象加剧;当0.1~1.0μm^2区间的孔隙率高于2.656%时,易出现墨水渗化现象;在1~100μm^2的孔面积区域中,微孔尺寸大都分布在1μm^2左右,当该区域的孔隙率过高(超过9%以上)时,涂层商标织物表面大孔结构较多,打印文本图案的连续性较差。

In order to solve the problems of slow drying and low print resolution in coated label fabrics,this paper reported the influence of coating agents with different modified structures on the printing effect of coated label fabrics by testing the particle size of coating agent,rheological properties of coating slurry,weight loss rate,contact angle and printing resolution of coated label fabrics.The correlation between the coating surface structure and printing effect was established.The findings indicate that when the coated label fabrics have porosity higher than 0.509%for the pore areas ranging from 0.001 to 0.010μm^2,the printed pattern tends to show bad coverage,and the phenomenon is exacerbated with the increase of porosity.When the porosity ranging from 0.1 to 1μm^2 is higher than 2.656%,ink bleeding occurs.The micropore size is mostly distributed around 1μm^2 in the interval of 1-100μm^2.If the porosity in this interval is too high(more than 9%),there are more large pores on the surface of the coated label fabric,resulting in poor continuity of the printed patterns.