Ultraviolet-resistant and heat-resistant assistant and assistant-containing gravure ink composition for PVC layer

The invention discloses a ultraviolet-resistant and heat-resistant assistant. The ultraviolet-resistant and heat-resistant assistant is obtained through connecting a silane coupling agent to benzophenone and a salicylic acid derivative. The invention further discloses an environment-friendly ink composition containing the ultraviolet-resistant and heat-resistant assistant. The environment-friendly ink composition containing the ultraviolet-resistant comprises resin powder, an environment-friendly solvent mixture, pigments, the ultraviolet-resistant and heat-resistant assistant, a leveling agent, wear-resisting assistants and the like. According to the ultraviolet-resistant and heat-resistant assistant and the ink composition, problems in flavor of PVC printing ink, fading during printing and ultraviolet-irradiated material discoloration during use are solved. 本发明公开了种耐紫外线耐热助剂，通过在二苯甲酮和水杨酸衍生物上连接硅烷偶联剂得到，本发明进步提出了含有上述耐紫外线与耐热变色助剂的环保油墨组合物，它包括树脂粉末、环保溶剂混合物、颜料、耐紫外线耐热助剂、流平剂、耐磨助剂等。本发明解决了PVC印刷油墨的味道和印刷过程中，褪色和在使用过程中紫外线照射材料变色