Printing with differential adhesion

This invention describes a printing method where a surface is first prepared with a specific 'print pattern' that is receptive to ink. When a UV-curable ink is applied, it only adheres to this pattern, forming a durable image, and does not stick to the rest of the surface. The claims narrow this to patterns with higher surface energy or better adhesion to the substrate.

Why it matters: UV LED curing technology has become more compact and energy-efficient since 2003, potentially making this selective printing method more practical and precise. Digital printing advancements also allow for more intricate and variable print patterns.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedUV-curable ink, UV curing lamp, precise material application.

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