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US 11,932,041 B2Granted
Laser printing process
AssigneeHeliosonic GmbH
InventorUdo Lehmann
Life of this patent
Estimating the term…
Abstract
Printing process in which a substrate to be printed is disposed opposite an ink carrier having an ink layer, the ink layer being irradiated regionally by a laser beam, said layer accelerating by absorption of the laser beam in the substrate direction, wherein for laser absorption the ink layer is admixed with reflective particles and as soluble polymer having a weight average (Mw) molecular weight of greater than 250 000 g/mol.
Claims19
A printing process comprising:
- disposing a substrate to be printed opposite an ink carrier including an ink layer,
- regionally irradiating the ink layer with a laser beam, the ink layer being accelerated in a direction of the substrate by absorption of the laser beam wherein the ink layer comprises an ink, the ink comprises admixed reflective particles for laser absorption, a solvent, and an additive including a soluble polymer having a weight average (Mw) molecular weight of greater than 250 000 g/mol, the weight average molecular weight being determined according to DIN 55672-2:
- 2016-3,
- said soluble polymer comprising one or more of a cellulose ester, a cellulose nitrate, and a polyurethane.
1 more element
A printing process comprising:
- disposing a substrate to be printed opposite an ink carrier including an ink layer,
- regionally irradiating the ink layer with a laser beam, the ink layer being accelerated in a direction of the substrate by absorption of the laser beam wherein the ink layer comprises an ink, the ink comprises admixed reflective particles for laser absorption, a solvent, and an additive including a soluble polymer having a weight average (Mw) molecular weight of greater than 250 000 g/mol, the weight average molecular weight being determined according to DIN 55672-2:
- 2016-3,
- said reflective particles comprising a metal-coated carrier.
1 more element
Dependencies are inferred from the claim text.