METHOD OF IMPROVING QUALITY OF PRINTING ON FLEXOGRAPHIC PRINTING PLATES Russian patent published in 2017 - IPC G03F7/20 

FIELD: polygraphy.

SUBSTANCE: invention relates to polygraphy and refers to a method of adapting the shape of multiple relief printing points created during manufacturing printing plates on a light-sensitive printing plate workpiece. Method includes selective exposure of the light-curing layer by actinic radiation using a matrix of UV LED assemblies, curing and development of the exposed layer. Matrix of UV LED assemblies contains at least two rows of UV-LEDs. Each light-emitting diode in the first row emits light with the same wavelength and each light-emitting diode in the second row emits light with the same wavelength different from the radiation wavelength of light-emitting diodes in the first row. Furthermore, light-emitting diodes in the second row emit light at an angle different from the radiation angle of LEDs in the first row.

EFFECT: technical result is better geometric characteristics of printing points.

17 cl, 13 dwg, 2 tbl