"Understanding UV and Varnishing: Key Post-Press Techniques for Packaging"

UV and varnishing are two commonly used post-press processes. Varnishing, also known as gloss coating, is a type of varnishing technique used in printing processes. Varnishing can be divided into oil-based and water-based varnishes, both of which can naturally cure and dry. This process helps protect the surface of the printed material, making it waterproof, scratch-resistant, and glossy. Varnishing is widely used in the production of product packaging.

The UV process includes both UV printing and spot UV. UV printing can be completed during the printing process by applying UV (colored) ink across the entire surface of the product, which is then cured and dried by ultraviolet light. This method enhances the gloss and durability of the printed material. Spot UV, on the other hand, is a post-print varnishing technique. It applies transparent ink to specific areas, and once cured by ultraviolet light, it creates a film that increases the three-dimensional effect, enhances surface gloss, and provides abrasion, scratch, water, and oil resistance. Varnished prints do not require lamination, while both UV printing and spot UV can be laminated. Spot UV is usually applied as a post-press process after lamination. If you want to further emphasize specific areas of a varnished product, spot UV can also be used.