Printing element with deepened parts and method of its manufacturing

FIELD: printing.

SUBSTANCE: printing element with deepened parts comprises the print area on the surface of which a large number of deepened parts is formed, and the gap area, on the surface of which the deepened parts are not formed, and the surface is brought into contact with a viscous material such that the viscous material is accumulated in the deepened parts, the excess viscous material is scraped from the surface by the installation of the squeegee projecting horizontally from the surface, and relative movement of the squeegee. In addition the printing element with the deepened parts comprises the substrate element having the print area, on the surface of which a large number of the deepened parts is formed, and the gap area, on the surface of which the deepened parts are not formed, and the DLC coating, formed so as to cover the print area and the gap area. The surface has a plurality of grinding traces, which are formed by grinding the DLC coating and form an angle of inclination which is different from 0° and 90°, relative to an imaginary continuation of the squeegee projecting horizontally from the surface.

EFFECT: printing element with the deepened parts is provided, which solves the problem of fogging, and the method of its manufacturing.

23 cl, 6 dwg

 



 

Same patents:

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

FIELD: method for manufacturing "intaglio" deep printing forms.

SUBSTANCE: in accordance to the method, a laser is used to manufacture the form on basis of brass alloy and/or with external layer of brass alloy, with recesses and/or lines, where Vickers rigidity of the brass alloy exceeds 140.

EFFECT: form manufacture stages are shortened.

2 cl, 2 dwg

FIELD: printing technologies.

SUBSTANCE: steel printing form for deep printing contains on its surface at least one first section with printing structures, meant for producing an imprint by deep printing method, and at least one second section with structures intended for stamping, size of which is less than 100 micrometers. Parts of structures which are closest to the surface of printing form are positioned at a distance from 20 to 100 micrometers below level of printing form surface.

EFFECT: ensured stamping of securities and their simultaneous printing with usage of a single steel printing form for deep printing, and also high protection of securities from forgery is ensured.

9 cl, 15 dwg

FIELD: printing.

SUBSTANCE: method comprises exposing photosensitive layer applied on magnesium plate to ultraviolet radiation, etching in nitrogen acid, removing photosensitive layer, washing in fresh water, and drying.

EFFECT: enhanced quality of printing plate.

3 cl

FIELD: metallographic printing.

SUBSTANCE: form is meant for producing printed image or imprint and has at lest one engraved portion on surface with one or more structural elements. Edge portion of structural elements is engraved for greater depth compared to depth, at which their inner portion is engraved, edge portion and inner portions are directly adjacent, directly merge into one another and inner portion is made in form of area, positioned below surface of printed form.

EFFECT: higher efficiency, lower costs.

4 cl, 4 dwg

The invention relates to a printed form, used as a cliché for direct imprint image

FIELD: metallographic printing.

SUBSTANCE: form is meant for producing printed image or imprint and has at lest one engraved portion on surface with one or more structural elements. Edge portion of structural elements is engraved for greater depth compared to depth, at which their inner portion is engraved, edge portion and inner portions are directly adjacent, directly merge into one another and inner portion is made in form of area, positioned below surface of printed form.

EFFECT: higher efficiency, lower costs.

4 cl, 4 dwg

FIELD: printing.

SUBSTANCE: method comprises exposing photosensitive layer applied on magnesium plate to ultraviolet radiation, etching in nitrogen acid, removing photosensitive layer, washing in fresh water, and drying.

EFFECT: enhanced quality of printing plate.

3 cl

FIELD: printing technologies.

SUBSTANCE: steel printing form for deep printing contains on its surface at least one first section with printing structures, meant for producing an imprint by deep printing method, and at least one second section with structures intended for stamping, size of which is less than 100 micrometers. Parts of structures which are closest to the surface of printing form are positioned at a distance from 20 to 100 micrometers below level of printing form surface.

EFFECT: ensured stamping of securities and their simultaneous printing with usage of a single steel printing form for deep printing, and also high protection of securities from forgery is ensured.

9 cl, 15 dwg

FIELD: method for manufacturing "intaglio" deep printing forms.

SUBSTANCE: in accordance to the method, a laser is used to manufacture the form on basis of brass alloy and/or with external layer of brass alloy, with recesses and/or lines, where Vickers rigidity of the brass alloy exceeds 140.

EFFECT: form manufacture stages are shortened.

2 cl, 2 dwg

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

FIELD: printing.

SUBSTANCE: printing element with deepened parts comprises the print area on the surface of which a large number of deepened parts is formed, and the gap area, on the surface of which the deepened parts are not formed, and the surface is brought into contact with a viscous material such that the viscous material is accumulated in the deepened parts, the excess viscous material is scraped from the surface by the installation of the squeegee projecting horizontally from the surface, and relative movement of the squeegee. In addition the printing element with the deepened parts comprises the substrate element having the print area, on the surface of which a large number of the deepened parts is formed, and the gap area, on the surface of which the deepened parts are not formed, and the DLC coating, formed so as to cover the print area and the gap area. The surface has a plurality of grinding traces, which are formed by grinding the DLC coating and form an angle of inclination which is different from 0° and 90°, relative to an imaginary continuation of the squeegee projecting horizontally from the surface.

EFFECT: printing element with the deepened parts is provided, which solves the problem of fogging, and the method of its manufacturing.

23 cl, 6 dwg

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