As a UV Ink Supplier , share with you. Five cold knowledge of UV printer UV ink: Cold knowledge one: the curing speed of UV ink is affected by color. M, Y, C, and K are in this order, especially if K is printed in high density, incomplete curing may occur. There is almost no difference between the color curing speed between M and Y, but C slows down, especially K slowly stands out. The reason is that the carbon used for the black UV ink absorbs light. Even with UV light irradiation, the starting point of the reaction cannot be sufficiently generated, and the curing becomes incomplete. M and Y hardly absorb ultraviolet light, while C and K, especially black, absorb ultraviolet light to a large extent. for Epson Dx5 Uv Ink Cold knowledge 2: The concentration control of black UV ink is very important Black UV ink is grayish. If the black color is too large, there is a risk of causing poor curing and adhesion, resulting in blocking, so it is difficult to absolutely ...