What are the materials of anti-counterfeiting labels

Some materials have anti-counterfeiting effect, such as fragile paper. The self-adhesive label processed with it as fabric has anti-counterfeiting effect. This kind of self-adhesive is easy to break, can only be used once and cannot be transferred. There is also the printing of anti-counterfeiting data on ordinary materials (coated paper, PVC, synthetic paper, yayinlong, etc.), such as QR code and bar code. As long as consumers scan the QR code on the product, they will display whether the product is an authentic interface (of course, the information bound by the QR code is different, and the information obtained by scanning the code is also different), which is conducive to consumers to distinguish the authenticity.