FIELD: printing industry.
SUBSTANCE: invention relates to a method and device for manufacturing moulds for engraved printing, intended for production of security papers, which uses a laser beam (2) for engraving pattern (3, 3.1, 3.2, 3.3) of engraved printing directly on the surface of the moulding material (1), in particular metal, made with the ability of laser engraving. Laser engraving of the moulding material (1) is carried out in layers in several separate stages of engraving. The stages are carried out one after another with the absolute register so that the pattern (3, 3.1, 3.2, 3.3) of engraved printing is gradually engraved on the surface of the moulding material (1) to the required depth of engraving. The surface of the engraved moulding material (1) is cleaned from wastes of a process of laser engraving after each separate stage of engraving, while the laser engraving unit is in the inoperative state.
EFFECT: improvement of quality of engraving.
24 cl, 10 dwg
