Process for manufacturing a flexographic printing plate
AssigneeSagadev
InventorsAlain Gaignou, André Schirrer
Life of this patent
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Abstract
A layer of a blank is subjected to a laser-engraving phase to manufacture a flexographic printing plate. The layer is produced in a material comprised of between 55 and 65% by weight of ethylene and between 35 and 45% by weight of propylene, which has been cured prior to the laser-engraving phase, and the laser-engraving phase is performed with a laser operating at a wavelength ranging between 248 and 340 nm. Processing steps such as exposure to ultraviolet radiation and crosslinking can, in this way, be eliminated.
Claims14
A process for manufacturing a flexographic printing plate using an Nd:YAG laser, comprising the steps of:
- providing a preform having a layer made of a cured material comprised of between 55 and 65% by weight of ethylene and between 35 and 45% by weight of propylene;
- and
- subjecting the previously cured material of the preform layer to a laser-etching phase by operating the Nd:YAG laser at a wavelength of between 248 and 340 nm.
A process for manufacturing a flexographic printing plate using an Nd:YAG laser, comprising the steps of:
- providing a preform having a layer made of a cured polymer material;
- and
- subjecting the cured material of the preform layer to a laser-etching phase by operating the Nd:YAG laser at a wavelength of between 200 to 400 nm.
Dependencies are inferred from the claim text.