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US 12,275,860 B2Granted
Digitally printed labels
AssigneeSun Chemical Corporation
InventorsYongping Zha, Philippe Schottland, Robert Mateuszczyk, Jing Jiang, Joanne Guite, Nissra Kousar
Life of this patent
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Abstract
Described are primer coatings, overprint varnishes, and seaming solution solutions for application to substrates such as those used to make wrap around and sleeve labels, particularly shrink wrap labels, which are used to label containers. The labels can be digitally printed with or without lane priming. With certain seaming solutions, the labels can be removed in the wash stage to enable the recycling of containers.
Claims8
A method of preparing a substrate for the labeling of articles comprising the steps of:
- applying a primer composition to the substrate, without lane priming;
- the primer composition comprising 65 wt % to 85 wt % aqueous polyurethane dispersion and 5.0 wt % to 40 wt % aqueous dispersion of a copolymer of one or more α-olefins and one or more acid-based monomers.
Dependencies are inferred from the claim text.