喷墨印花工艺颜色重现性的研究

Color Repeatability in Inkjet Printing

与传统印花不同,喷墨印花工艺在印花前就将增稠剂及其他助剂均匀地分散在织物上,并烘干,然后再用低粘度的墨水进行印花。由于这些或其他的不同之处,喷墨印花织物的颜色重现性不好。使用相同的方法和墨水及同一台印花机印制同一种织物,通常其(ΔE*ab)值会大于5。文章探讨了汽蒸和印花房条件对颜色重现性的影响,包括汽蒸时间和温度、包装纸,织物在蒸箱中的位置、印花房的湿度和温度、提供了一些可降低喷墨印花工艺色差的办法。

Unlike traditional printing, inkjet printing distributes thickeners and other auxiliaries evenly throughout the fabric and dries the fabric before printing, then uses inks with very low viscosity. Because of these and other differences, the color repeatability of inkjet printed fabrics is poor. A△ Eab^＊ larger than 5 is commonly observed between the same fabric with the same treatment and inks, and from the same printer. To control color variations in inkjet printing, the effects of steaming and printhouse conditions on color repeatability have been studied. Parameters investigated include steaming time and temperature, wrapping paper, the position of fabrics in the steamer, and the printhouse humidity and temperature. Possible approaches for minimizing shade variations in inkjet printing are recommended.