Abstract: Alkali-soluble resin was synthesized based on epoxy acrylate resin modified with acid anhydride for the introduction of carboxyl groups. Effects of temperature and type of anhydride on reaction conversion were investigated，and the structure of product was characterized by IR. Through L9 orthogonal experiment and the corelation study of photoinitiator with light curing time，the formulation of light-cured solder resist ink was optimized. The ink properties were tested and compared with related Japanese product.

摘要： 采用环氧丙烯酸酯树脂为原料，用酸酐对其改性，引入羧基基团合成具有碱溶性的树脂，探讨了不同温度、不同酸酐对反应转化率的影响，用IR对其结构进行了表征。通过L9正交试验和光引发剂与光固化时间匹配的研究，得到优化的光固化阻焊油墨配方，对油墨性能进行了测试，并与日本油墨进行了对比。