Measures to Ensure Color Durability of UV-printed Cosmetic Packaging Materials
Will the beautiful patterns and logos on cosmetic packaging fade over time? This is a concern for many brands and consumers. In fact, following these steps will keep the printed designs on packaging looking as good as new for a long time.
Step 1: Prepare a Proper Base
The packaging surface must be thoroughly cleaned before printing, and special treatment is sometimes required. Just like sanding a canvas before painting, this process ensures that the ink adheres firmly to the surface and resists peeling.
Step 2: Use High-quality Ink
Ink quality is crucial. Premium UV inks contain UV-resistant ingredients and can withstand alcohol and oils commonly found in cosmetics. Currently, there are inks specially developed for cosmetic packaging, which offer strong adhesion and enhanced durability.
Step 3: Ensure Complete Curing
UV inks need to be dried under UV light, a process known as curing. Modern LED UV lamps provide uniform illumination, guaranteeing that the ink dries completely. Incomplete curing will lead to easy fading or tackiness of the printed patterns.
Step 4: Apply a Protective Coating
After printing, a transparent protective coating is applied. This ultra-thin layer is barely visible to the naked eye but effectively prevents scratches and chemical contact during daily use. Some high-end packaging also uses special anti-fingerprint coatings.
Step 5: Conduct Rigorous Testing
Reputable manufacturers subject the packaging to a series of rigorous tests:
- Wear resistance test: Repeated friction with mechanical equipment
- Chemical resistance test: Wiping with alcohol and oils
- Aging resistance test: Exposure to UV light
- Adhesion test: Applying and peeling off adhesive tape
Only packaging that passes these tests can ensure no color fading during daily use.
Environmental Friendliness Matters
Today’s UV printing technology is increasingly eco-friendly. The inks used produce minimal pollution and are compatible with recyclable packaging materials, achieving both aesthetic appeal and environmental sustainability.
In Short
To maintain bright, long-lasting patterns on cosmetic packaging, follow these five rules:
- Proper surface treatment– Ensure thorough cleaning
- High-quality ink– Use packaging-specific formulas
- Complete curing– Dry fully under UV light
- Protective coating– Add an extra layer of defense
- Rigorous testing– Simulate real-world usage scenarios
By implementing these steps, your cosmetic packaging will remain both attractive and durable, retaining its visual appeal over time. For brands, fade-resistant packaging translates to a stronger brand image; for consumers, it delivers an improved user experience.
