A METHOD AND AN APPARATUS FOR MAKING LASER ENGRAVURES ON A MOVING WEB

摘要

A method for making laser engravings on a web of paper, including prearranging a paper web conveying device; defining a working area along a path of the web; prearranging an emitter of laser pulses; prearranging a movable pointing device, selecting an engraving pattern to be engraved on the web; calculating an instruction file containing pointing instructions; selecting an emission power of the emitter of laser pulses; emitting laser pulses through the emission power; and operating the movable pointing device according to the instruction file.