Method for the production of screen cavities in a rotogravure form and base body applicable in said method
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United States of America Patent
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Issued Date -
Feb 12, 2004
app pub date -
Sep 12, 2003
filing date -
Nov 15, 2000
priority date (Note) -
Abandoned
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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).
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