UV offset printing colored ink for label printing

The invention belongs to the technical field of ink printing and relates to UV offset printing colored ink for label printing. The UV offset printing colored ink comprises, by weight, 30-42 parts of trimethylolpropane triacrylate, 20-30 parts of tri(propylene glycol) diacrylate, 5-8 parts of epoxy acrylate oligomer resin, 0-5 parts of polyester acrylate resin, 7-14 parts of an initiator, 12-20 parts of a colored pigment and 3-7 parts of an auxiliary agent. The UV offset printing colored ink has the advantages of thorough drying, stable performances, low production cost, fast rolling rate, high production efficiency, environmental friendliness and wide latent market prospect. 本发明属于油墨印刷技术领域，尤其涉及种用于印刷标签的UV胶印彩色油墨，其特征在于各物质组分及重量百分含量为：三羟甲基丙烷三丙烯酸酯30-42、二缩三丙二醇二丙烯酸酯20-30、齐聚物环氧丙烯酸树脂5-8、聚酯丙烯酸树脂0-5、引发剂7-14、彩色颜料12-20、助剂3-7。本发明的有益效果是：干燥彻底，性能稳定，生产成本低廉，打卷速度快，生产效率高，环保，存在的潜在市场广阔。