Q1: What are the key advantages of UV white ink compared to conventional white inks?
A: UV white ink offers instant curing, resulting in faster production speeds and immediate post-print processing. It provides superior opacity and brightness, excellent adhesion on non-porous substrates, and strong resistance to scratching, chemicals, and outdoor weathering without the need for lengthy drying times.

Q2: On which substrates is UV white ink most effective, and are there any limitations?
A: It performs exceptionally well on non-absorbent surfaces such as plastics (PET, PVC, PP), metals, glass, coated papers, and synthetic films. On porous or uncoated materials, adhesion and opacity may vary; pre-treatment or primer is often recommended for optimal results.

Q3: What are the recommended curing and printing conditions for optimal performance?
A: Ensure proper UV lamp intensity and spectral output (typically 300-400 mJ/cm² for full curing). Maintain consistent ink viscosity and film thickness during printing to prevent uneven curing or poor adhesion. For fine details or high coverage, multiple layers may be applied with intermediate curing. Store ink away from direct light and moisture.