Wet-trapping method
AssigneeSun Chemical Corporation
InventorsJohn G. Tiessen, Kai-Uwe Gaudl
Life of this patent
Estimating the term…
Abstract
The present invention provides a method for applying multiple ink and/or coating layers on a substrate. At least one of the ink and/or coating layers contains one or more photoinitiators, and at least one of the ink and/or coating layers does not contain any photoinitiators. In certain embodiments, all of the ink and/or coating layers are wet trapped and the entire print construct is cured by exposure to UV radiation after all of the ink and/or coating layers have been applied. In certain embodiments, the wet trapping method of the present invention can be used to prepare laminates.
Claims19
A wet-trapping method of preparing a printed article, comprising:
- a) providing a substrate;
- b) applying to the substrate one or more energy-curable ink or coating layers (A) containing one or more photoinitiators;
- c) applying to the substrate one or more energy-curable ink or coating layers (B) containing no photoinitiators;
- and
- d) energy-curing all coating and/or ink layers simultaneously at the end of the print run;
- wherein one or more of the energy-curable ink or coating layers may be a primer coating;
- and
- wherein one or more of the energy-curable ink or coating layers may be a topcoat;
- provided that at least one of the ink or coating layers contains one or more photoinitiators;
- wherein the energy-curable ink or coating layers each contain equal to or greater than 40% by weight energy curing materials;
- and
- wherein step d) results in cure of all layers.
A wet-trapping method of preparing a printed article, comprising:
- a) providing a substrate;
- b) applying to the substrate one or more energy-curable ink or coating layers (A) containing one or more photoinitiators;
- c) applying to the substrate one or more energy-curable ink or coating layers (B′) containing 0 wt % to 6 wt % photoinitiators;
- and
- d) energy-curing all coating and/or ink layers simultaneously at the end of the print run;
- wherein one or more of the energy-curable ink or coating layers may be a primer coating;
- and
- wherein one or more of the energy-curable ink or coating layers may be a topcoat;
- provided that at least one of the ink or coating layers (B′) contains photoinitiators;
- wherein the energy-curable ink or coating layers each contain equal to or greater than 60% by weight energy curing materials;
- and
- wherein step d) results in cure of all layers.
A method of preparing a printed article, consistently essentially of:
- a) providing a substrate;
- b) applying to the substrate one or more energy-curable ink or coating layers (A) containing one or more photoinitiators;
- c) applying to the substrate one or more energy-curable ink or coating layers (B) containing no photoinitiators;
- and
- d) energy-curing all coating and/or ink layers simultaneously at the end of the print run;
- wherein one or more of the energy-curable ink or coating layers may be a primer coating;
- and
- wherein one or more of the energy-curable ink or coating layers may be a topcoat;
- provided that at least one of the ink or coating layers contains one or more photoinitiators;
- wherein the energy-curable ink or coating layers each contain equal to or greater than 40% by weight energy curing materials;
- and
- wherein step d) results in cure of all layers.
A method of preparing a printed article, comprising:
- a) providing a substrate;
- b) applying to the substrate one or more energy-curable ink or coating layers (A) containing one or more photoinitiators;
- c) applying to the substrate one or more energy-curable ink or coating layers (B) containing no photoinitiators;
- and
- d) energy-curing all coating and/or ink layers simultaneously at the end of the print run;
- wherein one or more of the energy-curable ink or coating layers may be a primer coating;
- and
- wherein one or more of the energy-curable ink or coating layers may be a topcoat;
- provided that at least one of the ink or coating layers contains one or more photoinitiators;
- wherein the energy-curable ink or coating layers each contain equal to or greater than 40% by weight energy curing materials;
- wherein at least one of the energy-curable ink or coating layers contains an amine synergist;
- and
- wherein step d) results in cure of all layers.
Dependencies are inferred from the claim text.