Kodawari UV ink primer is a specialized coating applied as a preparatory coat to an object, to promote adhesion between UV curable ink and the surface being printed.

The main function of a UV ink primer is to promote UV ink adhesion through strengthening the physical bond between for hard-to-print materials such as glass, acrylic, stainless steel,  etc.

Also known as UV adhesion promoters or UV inkjet primers, they enhance print quality and UV ink adhesion to various materials. These adhesion promoters are important for enhancing surface printability and ink adhesion.

In summary, the role of a digital primers is to transform the surface of a material and enable ink (pad printing inks or UV inkjet inks) to bond to the material.

Japanese origin