1. Metal wire anti-counterfeiting: metal wire is added to the pulp in the papermaking stage and the papermaking stage; Metal wire anti-counterfeiting is rarely used to make scratch cards because of the high cost of paper. Only when the quality requirements are high and the quantity is large can the metal wire anti-counterfeiting paper be customized.
2. Digital authentication and anti-counterfeiting: each lottery ticket has a password, and consumers enter a special authentication procedure to verify the authenticity when receiving the prize; This is the most commonly used anti-counterfeiting measure, with high anti-counterfeiting strength and convenient use. Its principle is similar to the network anti-counterfeiting label. The authenticity of the password can be verified through the website, short message or special inquiry tool, so as to judge the authenticity of the card information.
3. Fluorescent anti-counterfeiting: a certain part of the card surface is printed with colorless fluorescence, and it is illuminated by ultraviolet lamp for verification;
4. Temperature-change anti-counterfeiting: printing temperature-change ink at a certain position on the card surface, disappearing when heated, and then recovering immediately;
5, intelligent unlocking anti-counterfeiting: using a special decoder, decoding anti-counterfeiting from different angles will display different information;
6. Interlayer anti-counterfeiting: there is an interlayer in the middle of the tearing and scraping card;
7. Anti-counterfeiting of group flowers: design non-scannable group flowers to be printed on the card surface; This is also a very common anti-counterfeiting means, and the effect is also good.
Due to the diversity of anti-counterfeiting methods, it is necessary to adopt different anti-counterfeiting methods or a combination of various anti-counterfeiting methods according to the different uses of scratch cards.