Kornit’s Digital Printing Glossary
UV Printing Definition
UV Printing Definition
UV printing is a digital printing method that uses ultraviolet (UV) light to cure UV ink instantly as it lands on the surface.
What makes UV technology different from traditional printing, where ink needs time to dry, is the ability to harden the ink within seconds. The result is a durable image on a surface ready for immediate use.
Common surfaces for UV printing are wood, plastic, glass, and metal. While using it on some fabrics is possible, other printing methods like direct-to-fabric are usually recommended.
How Does It Work?
A UV printer applies special UV inks to the chosen surface, and built-in UV lamps shine light directly onto the wet ink. This triggers a chemical reaction called photopolymerization, which cures the ink in seconds.
Because the ink doesn’t have time to spread, the print maintains crisp edges and vibrant colors. The instant curing also allows printing on surfaces where normal inks would smudge or fail to dry properly.
Benefits of UV Printing
The main benefits of UV printing include:
- Sharp prints: Since the ink dries too fast to spread, the image stays clear.
- Long-lasting and durable: UV‑cured ink resists scratches and wear, so your prints last longer
- Eco-friendlier: UV printing avoids bad odors or harmful chemicals (VOCs), and uses energy-efficient lamps.
- Versatile surfaces: You can print on almost anything flat (plastic, glass, metal, paper, and even acrylic or foam)
- Fast turnaround: Prints are ready to handle right away; no drying space or time is necessary.
In short, it can be an excellent printing option for adding images to hard surfaces.
When to Use UV Printing
UV printing shines in industries where variety matters. Companies often use it for branded merchandise, labels, product packaging, or decorative items. However, when it comes to fabrics and garments, UV is not the best fit. For clothing, DTG printing can be a better choice.
Learn more about various printing methods with Kornit.