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US 11,999,181 B2Granted
Laser induced transfer 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 comprises reflective particles, a solvent, and a soluble polymer, wherein the reflective particles have an aspect ratio>25, the aspect ratio being defined as the average particle size/average particle thickness.
Claims18
Printing process comprising:
- disposing a substrate to be printed opposite an ink carrier including an ink layer, and regionally irradiating the ink layer with a laser beam, wherein the ink layer comprises reflective particles, a solvent, and a soluble polymer dissolved in the solvent, the reflective particles have an aspect ratio>25, the aspect ratio being defined as the average particle size/average particle thickness, and the reflective particles comprise metal or a metal-coated carrier material, the soluble polymer comprising one or more of a cellulose ester, a cellulose nitrate, and a polyurethane.
Dependencies are inferred from the claim text.