UV-LED curing has the advantages of energy saving and no ozone, mercury pollution has become one of the recently developed green printing technology.The photoinitiator used to meet the requirements of food packaging materials, but also in the LED issued by the central wavelength of 385nm or 395nm light absorption can stimulate the photopolymerization.In this paper, the absorption spectra of 12 kinds of photoinitiators, such as TPO, BDK, ITX, DETX, 819,784,127,369,MBF,199,796,were characterized by UV-Vis spectrophotometer. Prepared UV-LED curing varnish,The performance of the photoinitiator was analyzed.According to the requirements of food safety regulations, the photoinitiators which could be used for UV-LED curing were obtained TPO,

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