Based on many years of printing experience, some issues that should be paid attention to when printing gold and silver cards have been summarized:
Gold and silver cards are a special kind of paper. Different from ordinary paper, they are divided into two types: bright gold card and dull gold card, bright silver card and dull silver card. It is a layer of gold and silver foil on a single-layer copper paper or gray card paper base. This material is not easy to absorb ink when printing, so quick-drying ink should be used for printing.
Packaging materials used for various products are usually used only once. Once the products have circulated from the manufacturing plant to the hands of consumers or after the products have been opened and used, the packaging materials have completed their mission and are subject to recycling or disposal as waste.
Therefore, for packaging materials, firstly, their performance denmark number data should be good and they should meet the needs of protecting and promoting goods; secondly, their cost should be as low as possible. The so-called general plastics in modern plastics, such as polyethylene and polypropylene, have the general characteristics of excellent performance, large production volume and low price, and are the preferred materials for plastic packaging materials.
Plastic has good waterproof, moisture-proof, oil-proof and insulating properties, light weight, colorable, easy to produce, can be molded into various shapes and suitable for printing. It has abundant raw material sources, low cost and excellent performance. It is one of the most important packaging materials in modern retail packaging.