铜版纸印品UV上光油的研制

Development of UV Varnish for Printing Samples of Copper Printing Paper

目的研究UV上光油各组分对上光后铜版纸印品光泽度、附着牢度和固化时间的影响,并研制出性能优良的铜版纸印品UV上光油配方。方法选取合适的预聚物、单体和光引发剂,通过控制各组分变量,配制不同UV上光油,观察各项性能的变化情况。结果研制出性能优良的铜版纸印品UV上光油配方,即双酚A环氧丙烯酸酯、丙烯聚氨酯低聚物、TMPTA、TPGDA、DPGDA、Irgacure 907、Darocure184、BYK-320的质量分数分别为30%,15%,36%,4.5%,4.5%,3.6%,0.9%和0.5%。结论当预聚物质量比m(EA)∶m(PUA)为2∶1、光引发剂质量比m(907)∶m(184)为4∶1、单体质量比m(TMPTA)∶m(TPGDA)∶m(DPGDA)为8∶1∶1时,上光后铜版纸印品光泽度和附着牢度提高,膜层固化时间较短。

The aim of this work was to study the effect of the components of UV varnish on the glossiness, adhesion fastness and curing time of the copper printing paper after polishing, and to develop a UV varnish formula with good performance for copper printing paper. Appropriate prepolymer, monomer and photoinitiator were selected to prepare different UV varnish by changing the contents of the components. The changes of the performance were observed. The best formula was prepolymer epoxy acrylate （30%）, PUA （15%）; Monomer TMPTA （36%）, TPGDA （4.5%）, DPGDA （4.5%）; Photoinitiator Irgacure 907 （3.6%）, Darocure184 （0.9%）, BYK-320 （0.5%）. The glossiness and adhesion fastness of the copper printing paper were improved and the film curing time was shortened when the prepolymer EA：PUA was 2：1, photoinitiator 907：184 was 4：1, and monomer TMPTA：TPGDA：DPGDA was 8：1：1.