The coating on the scratch card is actually a special ink, which has the characteristics of opacity and strong shielding. It is used for vouchers, anti-counterfeiting labels, phone recharge card passwords, and scratch card scratching area and security area. cover.
Scratch card coating ink has the following characteristics:
1. Abrasion resistance, good abrasion resistance, not easy to fall off naturally;
2. Stable, the printed ink will not be scratched or difficult to scratch as the storage time increases.
3, easy to scratch, can be easily scratched off with hard objects or nails;
4, confidentiality, high hiding power, with excellent confidentiality effect;
5. Environmental protection, the ink rolls up automatically when it is scraped, and does not scatter in powder form;
Scratch card coating ink is only suitable for screen printing, generally printed on coated, smooth surface paper or PVC materials. The A4 printing paper used in the office is usually offset paper with relatively rough surface, which is not suitable as a substrate for scratch card coating ink. Printing the ink directly on the offset paper will cause the problem that the coating cannot be scraped off. If you must use offset paper, print a layer of primer at the location that needs to be covered and then cover it with scratch card coating ink, or scratch it off.