| abstract |
The present application provides a UV-curable character inkjet ink and a preparation method thereof. The UV-curable character inkjet ink simultaneously uses polyglycol acetal resin, polyester acrylate, and urethane acrylate, so that the UV-curable character inkjet ink has good properties. It also has good chemical and thermal resistance and good scratch resistance while being flexible, and also meets the normal spray temperature spraying of the spray head with a spray temperature of about 40-45 °C and any prerequisites that do not require safe removal of organic solvents, and at the same time and The solder resist ink on the lower layer has good adhesion. The present invention adds polyglycol acetal resin to increase the adhesion and flexibility of character inkjet ink and solder resist ink without reducing its hardness and resistance, and is applied to inkjet printing of characters in the process of manufacturing printed circuit boards (PCBs). , especially suitable for flexible PCB. |