目的 确定SiOx阻隔材料的电晕特性与印刷特性，研究其电晕处理规律以及印刷色彩再现的能力。方法 采用磁控共溅射方法在PET表面制备不同含量SiOx的复合阻隔材料，并采用电晕放电进行处理，利用接触角表征电晕放电后表面状态的变化；采用彩色喷墨打印方式，对处理后的复合薄膜表面进行印刷测试。结果 SiOx质量分数较小时不具备抗电晕特性，当SiOx质量分数达到50%左右时，即产生了抗电晕能力。结论 印刷测试结果表明，经过电晕处理的复合薄膜色彩再现良好，可直接进行印刷。

This work aims to determine the corona characteristics and printing characteristics of SiOx barrier material and study the law of corona treatment and the ability of color reproduction in printing. Composite barrier materials with different content of SiOx were prepared on the surface of PET by magnetron co sputtering method and then were treated by corona discharge. The change in surface conditions was characterized by contact angle. Then printing test was conducted on the surface of treated composite film by color ink-jet printing. The test results showed that anti corona characteristics did not exist when SiOx content was small, but it did when SiOx content reached about 50%. In conclusion, the composite film has good color reproduction after corona treatment, thus can be directly used for printing.