In our daily life, we often use a variety of disposable paper cups, and we can see that most of the paper cups are patterned. Printing exquisite patterns on paper cups can not only bring a good mood to drinkers, but also a good way to promote the company. But how is the pattern printed on the paper cup?
Usually the raw materials of paper cups are: food-grade wood pulp base paper + food-grade PE film, which is called food-grade PE coated paper. The pattern on the paper cup is printed directly on the PE coated paper roll, and then the printed paper roll is die-cut into semi-finished paper cup fans, and finally the cut paper cup fans is processed by a paper cup machine. The side coated with PE film is the inner wall of the paper cup, which has the functions of waterproof, oil-proof and heat-resistant. The side without the film is the outer wall of the paper cup, You only need to print patterns on this side.
Printing method of paper cup fan – Flexographic Printing
Flexographic printing belongs to the letterpress type and is currently the most commonly used printing process for paper cups. Flexographic printing uses water-based inks, UV inks, and solvent-based inks. It is a green and environmentally friendly printing technology that is widely used in food packaging and printing.
The most important element of flexographic printing is the printing plate, which is mainly made of flexible resin plate or rubber plate. The ink is transferred to the graphic part of the printing plate by the ink fountain rubber roller and the anilox roller to make it inked, and then the printing pressure is applied by the impression cylinder to transfer the ink on the printing plate to the printing paper roll, Finally, infrared hot air drying or UV curing drying completes the printing.
Nanning Paperjoy specializes in providing printed semi-finished paper cup fans and PE coated paper rolls for paper cup. We have advanced multi-color flexo printing machines and experienced technicians. Contact us to find out how Paperjoy can support your paper cup fan printing needs.
Post time: Dec-15-2022
