Method for the production of screen cavities in a rotogravure form and base body applicable in said method
OwnerJakob Frauchigerinventor
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Abstract
The invention relates to the production of a rotogravure form, preferably comprising a rotationally symmetrical base body (1) and with screen cavities (5) as print information, by means of time-modulated, particularly pulsed laser radiation (9), whereby an erosion support layer (13) is applied to the surface regions (8), provided for information engraving on the base body (1), through which the screen cavities (5) are produced in said surface regions (8) with the laser radiation (9), by means of material ablation. Said erosion support layer (13) is subsequently removed to give burr-free screen cavities (5).
Claims10
A method for producing engraved cells (5) as a gravure printing form bearing printing information, preferably having a rotationally symmetrical base body (1), by means of time-modulated, in particular pulsed, laser radiation (9), characterized in that on the base body (1), over its top surface regions (8) provided for information to be impressed, an erosion support layer (13) is applied, through which engraved cells (5) are introduced into the layer regions (3, 8;
- 13) by the laser radiation (9) by material ablation and this erosion support layer (13) is subsequently removed to give burr-free engraved cells (5).
Dependencies are inferred from the claim text.