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US 7,507,453 B2Granted
Digital decoration and marking of glass and ceramic substrates
AssigneeInternational Imaging Materials, Inc.
InventorsPamela A. Geddes, Daniel J. Harrison, Jim Ibarra, Claire A Jalbert, Joel D. Neri, Michael J. Draper
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Abstract
Disclosed in this specification is a decal assembly comprising a decal support, a releasable covercoat, a heat activatable layer, and an ink layer. The ink layer forms a digital image. The heat activatable layer has a high adhesion to a ceramic substrate at high temperatures and a low adhesion to the substrate at lower temperatures. Thus the adhesive properties of the decal are activated by heat. The resulting image has excellent adhesion to the substrate and resists the effects of washing.
Claims24
A decal assembly comprising
- a. a decal support,
- b. a releasable imaged covercoat disposed on said decal support, and
- c. an section comprised of
- I. an ink layer comprised of an ink selected from the group consisting of a ceramic ink, a frit ink, and combinations thereof,
- II. said ink layer forms a digital image and
- III. a heat activatable layer that has a first adhesion to a glass substrate at a first temperature and a second adhesion to said glass substrate after being heated to a second temperature, wherein said first temperature is lower than said second temperature and said first adhesion is lower than said second adhesion,
- wherein the releasable imaged covercoat has an elongation to break of at least about 1 percent, and wherein said imaged covercoat can be separated from the decal support with a peel force of less than about 30 grams per centimeter.
4 more elements
Dependencies are inferred from the claim text.