Method for manufacturing a laminated packaging material web
AssigneeTetra Laval Holdings & Finance S.A.
InventorsSverker OLSSON, Fredrik ERIKSON
Life of this patent
Estimating the term…
Abstract
A continuous in-line method for manufacturing a laminated packaging material web, comprising: inkjet printing a plurality of ink droplets on a paperboard layer, the ink droplets comprising color pigments and a solvent, determining an adjusted drying power based on a determined proportion of a first subset of the ink droplets in relation to the full plurality of ink droplets, the first subset comprising color pigments of only one specific color, and evaporating at least some of the solvent by applying hot air and/or infrared radiation at the adjusted drying power such that the color pigments are immobilized.
Claims13
A continuous in-line method for manufacturing a laminated packaging material web, comprising:
- inkjet printing a plurality of ink droplets on a paperboard layer, the ink droplets comprising color pigments and a solvent,
- determining an adjusted drying power based on a determined proportion of a first subset of the ink droplets in relation to the full plurality of ink droplets, the first subset comprising color pigments of only one specific color, and
- evaporating at least some of the solvent by applying hot air and/or infrared radiation at the adjusted drying power such that the color pigments are immobilized.
A converting unit configured to continuously manufacture a laminated packaging material web, comprising a paperboard layer feeding station an inkjet printer configured to print an ink comprising color pigments and a solvent on the paperboard layer, a drying station configured to dry the ink at an adjusted drying power by exposing the paperboard layer to infrared radiation and/or a flow of hot air, wherein the drying station comprises a control unit configured to determine the adjusted drying power based on a determined proportion of a first subset of the ink in relation to the full ink, the first subset comprising color pigments of only one specific color.
Dependencies are inferred from the claim text.