Method for ink jet durability and adhesion
AssigneeAssa Abloy AB
InventorsBrent D. Lien, Dale James Ziebarth, Evan Pastor, Tanya Jegeris Snyder
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Abstract
Systems and techniques for improving ink jet ink durability and adhesion to a substrate. The techniques may include applying a varnish to the surface of the substrate, curing, in an initial curing step, the varnish with an ultraviolet (UV) lamp, and applying a pigmented ink to at least a portion of the substrate. The initial curing step may comprise pinning the varnish with the UV lamp in a low-power state. The techniques may additionally or alternatively include applying a layer of pigmented ink and varnish at substantially the same time, allowing the pigmented ink and varnish to at least partially mix, then pinning or curing the ink/varnish combination.
Claims20
A method for improving ink jet ink durability and adhesion to a substrate, the method comprising:
- applying a first varnish coat to a surface of the substrate;
- curing, in an initial curing step, the first varnish coat with a UV lamp;
- applying a pigmented ink to at least a portion of the cured varnish;
- and
- applying a second varnish coat such that the pigmented ink and the second varnish coat at least partially mix together.
A method for improving ink jet ink durability and adhesion to a substrate, the method comprising:
- applying a pigmented ink to at least a portion of a surface of the substrate;
- applying a varnish to at least a portion of the surface of the substrate at substantially a same time as the pigmented ink, causing the pigmented ink and the varnish to at least partially mix together;
- and
- curing the pigmented ink and the varnish using an ultraviolet (UV) lamp.
A method for improving ink jet ink durability and adhesion to a substrate, the method comprising:
- applying a pigmented ink to at least a portion of a surface of the substrate;
- applying a varnish to at least a portion of the surface of the substrate in a same printing pass of a print head over the substrate in which the pigmented ink is applied, causing the pigmented ink and the varnish to at least partially mix together;
- and
- curing the pigmented ink and the varnish using an ultraviolet (UV) lamp.
Dependencies are inferred from the claim text.