Ultraviolet or UV coating is a popular finishing technique used in the printing and packaging industry to enhance designs and protect surfaces. But what exactly is UV coating and how does it work? Read on to learn about the UV coating process, its applications in packaging design, and benefits for brands.

The UV Coating Process

UV coating is a clear liquid made of UV-reactive resins that is applied wet over printed packaging substrates like paper, cardboard or plastic. It is then cured, or dried instantly, using ultraviolet light.

UV coating machines precisely dispense the liquid onto materials moving along a production line. UV lamps located underneath instantly cure the coating, bonding it to the substrate surface in a matter of seconds to form a durable, glossy protective film.

The quick-drying UV process does not require heat and produces minimal volatile organic compound emissions, making it environmentally friendly. It is widely used for food-safe packaging like candy boxes from suppliers like KALI, who offers a variety of luxury custom paper boxes.

Types of UV Coatings

Depending on the desired finish, common types of UV coatings include:

Applications in Packaging

UV coatings are popular in custom cosmetics packaging sectors for protective qualities. They create vibrant, high-quality designs that enhance shelf presence and the consumer experience. Specialty finishes from suppliers like KALI, allow for unique textures, haptic sensations and branding experiences.

Typical packaging applications include luxury gift boxes, floral boxes, cosmetic palettes, candy wrappers, juice cartons, wine labels and more. Spot UV coating is also used to highlight graphics, creating visual pop on cartons and containers.

Benefits of UV Coatings in Packaging

UV coatings deliver printing protection, preserve color vibrancy and create an upmarket finished look beneficial for brands. Additional benefits include:

• Scratch, smudge and water resistance
• Fast drying process for efficient production
• Eco-friendly - emits low VOCs
• Enhances shelf appeal and first impressions
• Adds allure and value perception for customers

Overall, UV coatings offer custom cosmetics packaging printers innovative design possibilities to attract consumers and protect products through distribution. For boxes with luxury finishes, consult a supplier like KALI, experienced in crafting custom paper boxes utilizing a range of specialized UV techniques.