纸张丝网印刷用水性金墨的研制

目的为了制备一种可用于纸张丝网印刷、具备烫金效果的水性金墨,以提高包装印刷品的印刷效果。方法通过采用不同种类的树脂、分散剂及颜料,辅以调节剂、润湿剂、消泡剂等助剂来制备纸张丝网印刷用水性金墨。通过测量油墨的干燥速度、粘度、粒径、光泽度等性能,以分析不同配方对油墨性能的影响。结果不同种类的树脂对金墨性能有不同的影响,水性丙烯酸树脂C所制备的金墨粘度较小,油墨彻干性、光泽度相对较好;与BYK198相比,BYK190,BYK193分散剂适合制备水性金墨,并且随着分散剂含量的提高,油墨的粘度、彻干性、光泽度均得到了改善。结论得到了一种纸张丝网印刷用水性金墨及其相关的油墨配方,用以替代传统烫金工艺,提升了包装印刷品的印刷效果。

Preparation of Water-based Gold Ink for Screen Printing of Paper

The work aims to prepare a kind of water-borne gold ink which can be used for paper screen printing and has the effect of bronzing for improving printing effect of printing products. Water-borne gold ink for paper screen printing was prepared by different kinds of resins, dispersants and pigments and supplemented by regulator, wetting agent and defoamer. The influence of different formulations on the performance of ink was analyzed by measuring the drying speed, viscosity, particle size and gloss of ink. Different kinds of resins had different effects on the properties of gold ink. The gold ink prepared by water-borne acrylic resin C had low viscosity and better drying speed, viscosity and gloss. Compared with BYK198, BYK190 and BYK193 dispersant were suitable for preparing water-borne gold ink. With the increase of dispersant content, the ink''s viscosity, dryness, gloss were improved. Finally, a water-based gold ink for screen printing of paper and the formula of the gold ink have been obtained, which can replace the traditional bronzing process and improve printing effect of printing products.