食品安全包装对油墨的环保性能和抗老化性能提出了更高的要求，研究了一种具备抗紫外线的纳米SiO-2油墨，其中纳米SiO-2微粒利用化学沉淀法制得，并用XRD和马尔文 Zteaszier Nano-ZS表征，其结果表明，纳米SiO-2为粒径分布在100 nm以下的无定形粉末。在自制的水性油墨中加入纳米SiO-2及分散剂，超声波分散后测试该油墨对紫外光的吸收率，结果表明：研制的纳米SiO-2水性油墨对紫外光具有90%以上的屏蔽率，在食品安全和油墨抗老化性方面具有很好的应用价值。

In food safety packaging, the performance of environmental protection and weather resistance of ink is more and more important. A kind of anti-UV nano-SiO-2 ink was studied, Nano-SiO-2 was prepared by the chemical precipitation method and characterized by XRD and Malvern Zetaszier Nano-ZS. The experimental results showed that the average size of nano-SiO-2 is under 100nm and it is a kind of amorphous powder. The homemade powder of nano-SiO-2, water-based ink and dispersants were mixed using ultra-wave dispersion, and the anti-UV water-based ink was prepared. The anti-UV experiment showed that the shading rate of the anti-UV ink is more than 90%. The ink has good application prospect in the area of food safety packaging and weather resistance.