2012•China Printing and Packaging StudyRequires access
Study on the Influencing Factors of Curing Rate of UV Ink
MA Xiao-xu
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Abstract
The components of UV ink and the performance of thickness of ink film have important effects on ink curing rate.In order to study the effects of the components of UV ink on curing rate,different kinds of prepolymers,monomers and photo-initiators were used to prepared the UV ink.Then after changing the kinds and contents of photo-initiators with fixing other components, the UV ink samples with different ink thickness was made.The double bond conversion rate of ink samples with different ink thickness were tested,and the relationship between the kinds and content of photo-initiators and the curing rate was analysed. The ink double bond conversion rate of samples under different UV light power was tested to study the curing rate of the ink with different photo-initiators under different power.The results showed that the components of UV ink have some influence on the curing rate.Then the the double bond conversion rate decreased with the increasing of ink film thickness,when the content of photo-initiators is less than 10%,curing rate of UV ink increased with the increase of the content of photo-initiator. The double bond conversion rate of the UV ink increased with the increase of UV light power.