rub/scratch-off ink
rub/scratch-off ink (In French encre grattable) opaque latex printing ink, in some cases with metallic-effect pigments, which is printed on a previously applied release varnish to guarantee a reading protector or its removal through scratching off; can be implemented in flexo printing, screen printing, but also with inline varnishing units; rub/scratch-off ink can be overprinted.



