Abstract
Ink used in food packaging printing graphic,it's one of the most important factors that affect the safety of packaging food,as a new environmentally friendly printing ink,UV-curable inkjet ink has attracted much attention in the application of food packaging printing .The pros and cons of performance of UV ink's color paste is the key to the preparation of UV inkjet ink.In order to prepare UV inkjet magenta ink's color paste with good dispersion,design formulation experiment for monomers in UV ink's paste,determine the monomer type and content,by changing the ratio of pigment to resin and milling time as well as the kind and the content of dispersants to prepare based ink, by testing the diameter size to evaluate dispersion of UV ink's paste.It has been proved that the monomer type and content is the key factor that influences the dispersion property of UV ink's based ink. The dispersion property of the resin to pigment depends on a great extent on the ratio of resin to pigment,milling time also play an important role. The result also proved that different kind of dispersants and content are also important factors that influence the dispersion property.
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