Introduction to Inkjet UV Printing and UV Varnish
UV varnish is a transparent coating. It plays a crucial role in the inkjet UV printing process. So, what exactly is UV varnish? What are its magical benefits? Let’s explore the secrets of UV varnish together.
Definition and Function of UV Varnish: After being sprayed or rolled onto the substrate surface, UV varnish is rapidly transformed from a liquid to a solid state under UV light, achieving a hardening treatment. This process not only enhances its scratch resistance but also imparts a glossy and beautiful appearance, creating a sleek and delicate texture.
Composition of UV Varnish: The high performance of UV varnish stems from its carefully formulated ingredients. UV varnish consists of a prepolymer, a reactive diluent, a photoinitiator, and a variety of other additives, which together ensure product stability and performance.
The Specific Role of UV Varnish in UV Inkjet Printing
In practical applications, UV varnish performs exceptionally well in enhancing UV inkjet printing quality and protecting designs.
1. Improve Printing Quality
By comparing prints with and without varnish, we can clearly see that UV ink prints without varnish appear dull and lackluster, whereas with the addition of varnish, the prints become vibrant and radiant. The application of UV varnish enhances the vividness and gloss of printed colors, making the printed media more attractive.
2. Enhanced Design Protection
UV varnish also provides deep protection for printed designs. UV varnish forms a hard film, improving print adhesion, scratch resistance, and weather resistance. It effectively protects against bumps and scratches caused by daily handling.
3. Add 3D Texture
By printing multiple layers, the varnish creates a distinct, contoured texture on flat materials, opening up new design possibilities.
UV varnish should be stored away from light to prevent premature curing due to ultraviolet rays. It is recommended to store it out of direct sunlight. If necessary, use a black cloth or other shielding material to block sunlight.
Post time: Sep-26-2025