Pre coated aluminum foil for printing is an aluminum substrate that is pre coated with a special primer solution on one or both sides of the aluminum foil before leaving the factory. Compared to uncoated aluminum foil, the surface coating is specifically designed to optimize surface properties for printing and is widely used in the fields of pharmaceutical PTP blister, food flexible packaging, daily chemical packaging, and label printing.
In the production stage, precision coating equipment is used to evenly apply functional coatings on the surface of aluminum foil and dry and cure them. The coating forms a stable transition layer between the aluminum base and the printing ink, filling the inherent gap of poor adhesion of the original aluminum foil ink on the glossy surface.
Key Features
Excellent ink adhesion: The coating enhances the surface adhesion value, and the ink adheres firmly after printing without shedding, cracking, or falling off.
Stable printing performance: The coating thickness is uniform, and high-speed gravure printing, flexographic printing, and digital printing are not prone to color differences or missing dots.
Moisture and corrosion resistance: The coating isolates moisture and corrosive materials inside the packaging, protects the aluminum foil, and extends the shelf life of the packaging.
Can achieve glossy/matte effects: Available in glossy and matte coatings, suitable for various brand packaging appearance designs.
Core Benefits for Manufacturers
Reduce defect rate: significantly reduce the waste caused by ink loss during printing and post-processing.
Adapt to high-speed mass production: match high-speed rotary printing equipment to improve the production efficiency of processing plants.
Eliminating pre-processing steps: Printing factories do not require additional corona treatment, saving processing time and production costs.
Common Application Fields
Pharmaceutical: PTP pill blister printing packaging
Food: Snacks, dairy products, color printed flexible packaging aluminum foil
Daily beauty products: flexible hoses, color printed aluminum foil packaging
Label industry: Adhesive printing aluminum foil labels
With outstanding printing performance and comprehensive cost advantages, printed pre coated aluminum foil has become the mainstream raw material for color printed aluminum packaging, gradually replacing ordinary smooth aluminum foil in the high-end packaging market.