UV Reverse Varnish is a special UV-curable coating designed for premium printing processes, featuring distinctive high-low contrast frosted visual effects. Compatible with offset in-line partial coating, it forms a perfect combination of glossy base ink and matte frosted topcoat through professional reverse finishing, delivering strong layered texture and high-end artistic appearance. Featuring instant UV curing, clear pattern boundaries without color bleeding or edge blurring, it provides excellent adhesion, scratch and wear resistance with zero solvent volatilization and eco-friendly performance. Widely applied to partial artistic coating on high-end color boxes, gift boxes, tobacco and alcohol packaging, and premium picture albums.

Core Product Features

1. Superior Forming Effect & Sharp Contrast

It presents clear boundaries between glossy ink areas and frosted varnish areas after curing, forming striking high and low texture contrast and delivering a luxurious artistic printing effect.

2. Fast Curing & Stable On-Machine Performance

Instant UV curing adapts to high-speed offset production lines. With moderate leveling performance, it avoids plate blurring and ink diffusion, ensuring stable operation during long-term continuous printing.

3. Scratch & Abrasion Resistant Without Whitening

The high-hardness cured film resists friction and scratches effectively. The reverse process maintains a pure and flawless surface without fogging or whitening issues.

4. Ultra-Smooth Surface & Anti-Blocking Performance

The cured matte surface is smooth and delicate. Finished products resist blocking and smudging during stacking, adapting to mass material collection and subsequent post-processing procedures.

5. Eco-Friendly Compliance & Wide Versatility

Solvent-free and low-VOC formula fully complies with environmental standards. It is compatible with coated paper, white cardboard and various substrates for printed color boxes.

6. Firm Adhesion & Excellent Process Adaptability

It bonds tightly with color printing ink layers without peeling or delamination. Fully compatible with subsequent hot stamping, die-cutting and embossing processes.

How to choose:

1. Prioritize this dedicated UV reverse varnish for products requiring partial frosted finish and high-low contrast artistic effects.

2. Preferred for high-end tobacco & alcohol packaging, cosmetic gift boxes and premium packaging printing.

3. Choose the standard universal model for high-speed offset in-line reverse process production lines.

4. Ideal for high-end orders requiring zero surface fogging and ultra-clear pattern boundaries.

How to use:

1. Stir gently and evenly before use; no dilution required for direct offset coating.

2. Precisely control partial coating areas and adjust coating thickness and machine speed.

3. Match standard UV lamp power to realize instant curing and complete reverse frosted forming.

4. Clean ink rollers and printing plates with professional UV detergent after operation.

5. Store sealed in a cool and dark place away from UV light sources, high temperature and open flames.

Q1: How to solve blurred boundaries and edge diffusion in reverse coating?

Reduce coating thickness and increase curing speed. Stabilize water-ink balance and optimize operating parameters to achieve sharp and clean edges without diffusion.

Q2: How to eliminate surface whitening and fogging after coating?

These issues are caused by insufficient UV lamp power or excessive workshop humidity. Increase UV curing intensity and control indoor humidity to remove surface fogging.

Q3: How to improve easy scratching and peeling of reverse varnish coating?

Peeling is mainly caused by incompletely cured base ink. Ensure full curing of the underlying ink before coating to strengthen film adhesion and curing intensity.

Q4: How to solve stacking adhesion and smudging of finished products?

Improve UV curing degree and reduce machine speed. Control coating thickness and stack products only after complete film curing.

Q5: Can it be mixed with ordinary UV varnish?

Mixing is strictly prohibited. It will destroy the reverse frosted system, resulting in failure of high-low contrast effect and permanent surface whitening defects.

Q6: Can water be added for dilution?

Water dilution is not allowed. Only professional UV thinner can be used for slight viscosity adjustment without affecting reverse process performance.

Q7: What printing equipment is compatible?

Mainly suitable for offset press in-line partial coating. Screen printing is not recommended due to mismatched process parameters.