The Effect of Photoinitiator on UV Screen Printing Photochromic Ink’S Curing Performance

Abstract:

UV screen printing Photochromic ink mainly includes pre-polymer, monomer, Photochromic materials, Photoinitiator, etc, and the curing process of ink is that under the irradiation of UV light source, the liquid substances with chemical reactivity are rapidly changed to the solid state, in this reaction process, Photoinitiator can promote the advancement of reaction, therefore, Photoinitiator directly affect the curing performance of inks. The inks are respectively prepared by changing the quantity and type of Photoinitiator, and the curing speeds are tested. The result shows when the quantity of Photoinitiator is 10%, the curing performance of ink is the best. In addition, the formulation experiment is made by selecting three Photoinitiators with best curing performance. The result indicates that compared to other formulations, the ink can obtain the biggest curing speed only by Photoinitiator 907, and the optimal curing speed is 68m/min under curing power 100w/cm.

• Periodical: Advanced Materials Research (Volume 174)
• Pages: 433-436
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.174.433
• Online since: December 2010
• Authors: Wan Zhang, Xian Fu Wei, Pei Qing Huang, Chao Lu
• Keywords: Curing Speed, Photoinitiator, UV Screen Printing Photochromic Ink

References

[1] Yu Xianen: Practical luminescence materials (China Light Industry Press, China 2008).

[2] Wang Dehai, Jiang Ling: UV curable materials—Theory and Application (Science Press, China 2001).

[3] Li Yunyan, Hu Chuanrong: Experiment Design and Data Processing (Chemical Industry Press, China 2005). Acknowledgement This work was supported by Youth Funds of Beijing Institute of Graphic Communication (23190110001).