Scratch Card Printing

Scratch-off ink printing (scratch-off printing) allows you to effectively hide information. It is mainly used in the promotional industry, advertising and in the production of games and lottery tickets. Scratch cards are made of two types of paints and varnish. The first step is to print out the information elements. These can be codes, rewards, instructions, or other relevant content that is meant to remain hidden until scratched. A special transparent varnish is applied to the information layer. Its task is to create a surface that prevents the proper scratch paint from sticking to the information underneath. Thanks to this, scratching off the paint does not damage the hidden content. The next step is to apply scratch paint, which is characterized by poor adhesion to the substrate and appropriate scraping properties. It is important that the layer is thick enough to effectively hide information and at the same time be easy to expose.

In some cases, scratch-off ink may be printed with additional ink, e.g. to apply graphic information, logos or protections against attempts to decrypt hidden content. Scratch paints are distinguished by their low adhesion to the substrate, which allows them to be easily removed – e.g. with a coin or a fingernail – revealing hidden graphics or text.