UV Drip-Off Primer Coating — TWGU7000

The TWGU7000 is a UV drip-off primer from TriWill Group, formulated to create striking matte and gloss contrast effects on printed products. In the drip-off process, this matte primer is printed in selected areas, then a gloss coating is applied over the whole sheet — the gloss “drips off” the matte primer areas but remains glossy elsewhere, creating a distinctive matte/gloss contrast in a single pass.

TriWill Group supplies TWGU7000 to US commercial printers and packaging converters producing premium print and packaging with striking matte/gloss drip-off contrast effects.

Key Features

• Matte/Gloss Contrast: Creates striking contrast between matte and gloss areas.
• Inline Effect: Achieves the drip-off effect inline in a single pass.
• Selective Matte: Printed in selected areas to define the matte regions.
• UV Cure: Works with UV gloss coating cured under UV lamps.
• Premium Effect: Distinctive finishing for premium print and packaging.

Frequently Asked Questions

What is drip-off coating?

Drip-off coating creates a matte/gloss contrast effect. A matte primer (like TWGU7000) is printed in selected areas, then a gloss UV coating is applied over the whole sheet. The gloss “drips off” (repels from) the matte primer areas but stays glossy elsewhere, creating contrast.

How does the drip-off effect work?

The matte drip-off primer is printed where matte areas are wanted. When flood gloss coating is applied over the sheet, it repels from the primed matte areas (leaving them matte) but adheres and stays glossy on unprimed areas, creating a matte/gloss contrast in one pass.

What is the advantage of drip-off over separate matte and gloss coating?

Drip-off achieves matte/gloss contrast inline in a single coating pass, whereas applying separate matte and gloss coatings would require multiple passes and precise registration. Drip-off is more efficient for this contrast effect.

Does the drip-off process require UV curing?

Yes. The drip-off process uses a UV gloss coating cured under UV lamps, applied over the TWGU7000 matte primer. Contact TriWill Group for guidance on the complete drip-off process and curing.