To understand the technology of metal cards, we must first understand the raw materials of metal cards and the process of making metal cards. The raw materials of metal cards are mainly copper, stainless steel and aluminum. Then we confirm the design contributions and make film. Developed through corrosion, electroplating, electrophoretic, polishing, screen printing processing. According to customer requirements, high-end metal cards can be plated on the surface of gold or silver, so metal cards are also known as gold cards or silver cards. The factory is widely used in business cards, membership cards, VIP cards, body protection Buddha cards, open certificates, collection of commemorative cards and so on. The metal card is the symbol and symbol of the noble status because of its precious material, beautiful appearance and the breath of a noble king.
According to the metal card technology, the metal card can be divided into two dimensional code card, chip card, full color printing card, printing oil card, mirror card, portrait card, dummy card, antique card, diamond card, hollowed-out card and so on.
Metal card coding technology is mainly divided into four types: imprint, indentation, etch, manual concavity code:
1) imprint convex code as shown in the following figure:
The color of the number is the same as the coating color of the metal card. The screen printing ink of the number frame generally chooses the color that is close to the coating color.
2) indentation code as shown below:
The color of the number frame is the same as the coating color of the metal card, and the ink color of the screen number can be chosen arbitrarily.
3) corrosion convex code as shown in the following figure:
Corrosion convex code for the number frame etched concave, number protruding.
4) corrosion recess as shown in the following figure:
Corrosion code can have a number frame, or can not be the number frame, as shown by the number etch sunken.