METHOD FOR PRODUCING SCRATCH CARD

摘要

There is provided a method for producing a scratch card in which visual observation of concealed information is disabled during and after production. A varnish layer is formed on a thermal layer applied onto a card substrate and a scratch layer is formed directly on the surface of the varnish layer. After this, concealed information is printed on the thermal layer of the card substrate on the back of the varnish layer by applying a laser light onto the surface of the thermal layer from a position apart from the scratch layer while aiming at a target. The laser light is set not to cool each layer including the card substrate.