| 摘要 |
FIELD: printing. ^ SUBSTANCE: invention relates to lottery tickets such as "instant lottery", payment cards, as well as any other data carriers that contain words, numbers, symbols or messages hidden from visual perception with the removable layer, intended to specify the password, gain or other information necessary for the user. The data carrier comprises a blank sheet in a form of paper, cardboard, plastic or other sheet, on at least one side of which graphic reproductions and other functional information is printed with typographic or hard copy method. On the data carrier there is at least one field in which the game or other concealed information is printed, covered with an optically transparent non-removable layer, and on top of it with removable protective layer. At that the removable protective layer is made in the form of a perforated mask. ^ EFFECT: invention provides a creation of a data carrier with a smaller number of removable layers, which provides reliable protection from appearance of hidden information, including by showthrough. ^ 6 cl, 4 dwg |
