非极性塑料印刷用UV胶印油墨的研发

发布时间：2018-06-11 22:55

本文选题：UV油墨 + 光固化树脂　；参考：《天津科技大学》2012年硕士论文

【摘要】：随着我国UV胶版印刷技术的发展,UV油墨因为其固化速度快,能耗低、VOC排放量为零等特点,已经被广泛应用在各个印刷领域。结合我国印刷的实际状况,塑料包装印刷已经跃居成为印刷行业的第一位。但是由于非极性塑料表面自由能较低,为了增加油墨在印品表面的附着牢度,国内印刷企业一般采用电晕打孔等方法来增加其表面能,从而达到印刷的条件。本课题研究的目的就是解决上述问题,减少印刷工序,开发无需处理承印物表面的一系列UV胶印油墨,使其在固化时间、附着牢度等方面符合生产要求,用于指导生产本文通过对UV胶印油墨组分中的颜料及光引发剂的波谱分析,优化UV胶印油墨配方中颜料与光引发剂的组合以及搭配情况；以粘性、流动度、固化时间以及附着牢度为参考标准,优选出各类丙烯酸树脂,找出树脂的最佳组合以及搭配情况；将各组分进行合理搭配,用三辊研磨机将油墨细度控制在15μm以下,通过正交分析实验优化配比,从而得到系列油墨的最佳配方。紫外光波谱分析结果表明,光引发剂OMBB.907、EDB.ITX和369在UV胶印黑色油墨中,匹配MA-11碳黑的最佳配比为2：7：4：1：1。由于波谱屏蔽小以及吸光效率高的原因,在彩色油墨配方当中,光引发剂主要以907为主,辅助添加少量其他与颜料吸收光波没有重合的光引发剂。在UV胶印黑色油墨配方设计中,选用单一树脂对油墨进行各项性能的检测,继而找出混合树脂的最佳配比。通过对油墨各项性能的检测,来检验设计配方的可用性。在黄、红、蓝三色油墨系列当中,实验选取树脂总量为65%,并且按照AK624:AK6182:7166为3：4：6的配比制备油墨。通过控制油墨固化速度、附着牢度以及在承印物表面的色密度的,设计出在树脂配比一定条件下的光引发剂组合。
[Abstract]:With the development of UV offset printing technology in China, UV printing ink has been widely used in various printing fields because of its high curing speed, low energy consumption and zero VOC emissions. Combined with the actual situation of printing in China, plastic packaging printing has become the first in the printing industry. However, due to the low surface free energy of non-polar plastics, in order to increase the adhesion fastness of ink on the printing surface, domestic printing enterprises generally use corona drilling to increase the surface energy, so as to achieve the conditions of printing. The purpose of this research is to solve the above problems, reduce the printing process, develop a series of UV offset printing ink that do not need to deal with the substrate surface, so that the curing time, adhesion fastness and other aspects meet the production requirements. In order to optimize the combination and combination of pigment and photoinitiator in UV offset printing ink formulation by means of spectrum analysis of pigment and photoinitiator in UV offset printing ink. The curing time and adhesion fastness are used as the reference standards, and various acrylic resins are selected to find out the best combination and collocation of the resins. The ink fineness is controlled below 15 渭 m by the three-roll grinder. The optimum formula of series of ink was obtained by orthogonal analysis. The results of UV spectrum analysis showed that the optimum ratio of photoinitiator OMBB.907EDB.ITX and 369 in UV offset printing black ink matched MA-11 carbon black was 2: 7: 4: 41: 1. Because of the small spectrum shielding and high absorptivity, in the color ink formulation, the main photoinitiator is 907. In the formulation design of UV offset printing black ink, a single resin was selected to test the properties of the ink, and then the optimum proportion of the mixed resin was found out by adding a small amount of other photoinitiators which did not coincide with the absorption light wave of the pigment. Through the ink performance testing, to test the usability of the design formula. In the series of yellow, red and blue inks, the total amount of resin was 65 and the ink was prepared according to the ratio of AK624: AK6182: 7166 3:4:6. By controlling the curing speed of the ink, the fastness to the adhesion and the color density on the substrate surface, a combination of photoinitiators was designed under certain resin ratio.
【学位授予单位】：天津科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TS802.3

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