Learn more about UV coating, its advantages, and applications
UV coating, ultraviolet, is a mixture of one or more resins in a solvent that forms a thin layer on the application surface like a plastic coating.
The function in general is to protect and preserve a surface from the action of water or other damage by abrasion, but varnishes not only have a protective component, but also incorporate color to generate designs that are pleasing to the senses to be applied to wood and all kinds of objects of a varied nature. When applied to plastics and other surfaces in the paper industry, there is a special type of UV coating.
What is UV coating?
UV coating is formed by chemical bonding, which is an interaction of attractive forces between molecules and atoms. This fact differentiates it from normal resin varnishes, which dry by evaporation of some of their elements. In order for the chemical bond to take place, the varnish is subjected to an ultraviolet ray irradiation process, which is achieved almost instantaneously.
Gloss UV coating prior to the irradiation process is a liquid mixture with a strong odor and a sticky texture. After applying ultraviolet rays, the odor completely disappears and a homogeneous surface remains which, through a sedation process, acquires an intense crystalline shine. These characteristics of brightness and elegance make UV coating a highly required component for application in graphic arts and design.
5 incredible advantages of UV coating.
1. GlossThe light emitted and reflected by the surface gives a very elegant and neat glazed effect, giving clarity to the colors. The brightness of the paper achieves an effect that highlights the images and draws attention.
2. Fast dryThe speed of drying after applying the ultraviolet rays allows a more versatile printing for different types of surfaces, in addition to reducing the risk of clogging the nozzle heads.
3. Increased durabilitySurfaces with ultraviolet varnish applications last longer and, therefore, the capital invested in the product is better used.
4. Profitable technologyWhen we refer to UV ink, it has a waste of approximately 2% compared to 40% of conventional solvent-based ink. This means that the investment of UV varnish is more profitable, although in principle a little more expensive.
5. Great adhesionUV has a firm adhesion on the surface, whether the material has flexible or rigid characteristics. This fact is due, in large part, to the rapid curing process, compared to other types of technologies that involve more time in drying and with lesssatisfactory results.
Most common applicationsIt is mainly used for graphic arts on paper, cardboard, and other surfaces of similar porosity. All kinds of good quality objects related to the paper industry are made, such as catalogues, personalized folders, advertising brochures, book covers, cards and even packaging for certain food products.
The purpose of the UV coating is, beyond protecting the print against deterioration due to use, contact with liquids, etc., is to give a differential touch to the aesthetics of your prints and highlight specific elements of the design, such as example thecompany logo. Its high visual performance and elegance allow the product to be applied to brochures, magazines, catalogs, hardcover books and many other products that require high quality finishes.
July 03 2022|Emilia Piedra Donoso.