UV printer coating is a pre-treatment chemical designed specifically for non absorbent/smooth substrates. Its core function is to enhance UV ink adhesion through physical anchoring or chemical bonding, prevent color fading and peeling, and achieve "one substrate, one specialized coating". ‌‌

Core functions and mechanisms

Enhance adhesion: Form micro corrosion or active layer on smooth surfaces such as glass, metal, plastic, etc., to firmly bond oily UV ink.

Protection and Decoration: After curing, it provides scratch resistance, waterproofing, UV resistance, and color enhancement effects.

Mechanism of action: It mainly relies on the dual mechanisms of physical adsorption (increasing surface roughness/electrostatic interaction) and chemical cross-linking (forming chemical bonds between the coating and substrate/ink).