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US 12,533,905 B1Granted
Direct thermal printable media with side chain crystalline polymer material coating
AssigneeZebra Technologies Corporation
InventorsMarielle K. Smith, Mohannad Abdo, Brian S. Huffman, Sakhi K. Shah
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Abstract
Direct thermal print media comprising side chain crystalline material are disclosed. The print media are substantially free of bis-phenols, and can retain color when subjected to light and/or temperatures ranging from, for example, −15° C. to 45° C. for long durations.
Claims31
A thermal printable media, comprising:
- a transparent or translucent substrate;
- a heat-sensitive layer on a first surface of the substrate comprising:
- a heat-sensitive polymer;
- and
- a binder adhering the heat-sensitive polymer to the first surface;
- a pigmented adhesive layer on a second surface of the substrate;
- and
- a removable release liner in contact with the pigmented adhesive layer;
- wherein, in response to heat exposure above a predetermined threshold temperature applied at selected locations on the printable media, the heat-sensitive layer changes irreversibly to transparent or translucent at the selected locations, thereby revealing the pigmented adhesive's color at the selected locations.
6 more elements
A thermal printable media, comprising:
- a substrate;
- a pigmented layer on a first surface of the substrate;
- a heat-sensitive layer overlaying the pigmented layer comprising:
- a heat-sensitive polymer;
- and
- a binder adhering the heat-sensitive polymer to the pigmented layer;
- an adhesive on a second surface of the substrate, opposite the first surface;
- and
- a removable release liner in contact with the adhesive;
- wherein, in response to heat exposure above a predetermined threshold temperature applied at selected locations on the printable media, the heat-sensitive layer changes irreversibly to transparent or translucent at the selected locations, thereby revealing the pigmented layer's color at the selected locations;
- wherein the heat-sensitive layer changes irreversibly to transparent or translucent at the selected locations in a temperature range of about 65° C. to about 150° C.;
- wherein the heat-sensitive polymer comprises a polyalkyl acrylate prepared from a plurality of monomers having sidechains ranging in length from C16 to C30;
- wherein the heat-sensitive polymer has a number average molecular weight of about 60,000 daltons to about 120,000 daltons;
- and
- wherein the heat-sensitive layer coats between about 80% to about 100% of the surface of the pigmented layer.
12 more elements
A thermal printable media, comprising:
- a substrate;
- a heat-sensitive layer overlaying a first surface of the substrate comprising:
- a heat-sensitive polymer;
- a binder adhering the heat-sensitive polymer to the first surface;
- and
- a pigment;
- an adhesive layer on a second surface of the substrate, opposite the first surface;
- and
- a release liner in contact the adhesive;
- wherein, in response to heat exposure above a predetermined threshold temperature applied at selected locations on the printable media, the heat-sensitive layer changes irreversibly to transparent or translucent at the selected locations, thereby revealing the pigment's color at the selected locations;
- wherein the heat-sensitive layer changes irreversibly to transparent or translucent at the selected locations in a temperature range of about 65° C. to about 150° C.;
- wherein the heat-sensitive polymer comprises a polyalkyl acrylate prepared from a plurality of monomers having sidechains ranging in length from C16 to C30;
- wherein the heat-sensitive polymer has a number average molecular weight of about 60,000 daltons to about 120,000 daltons;
- and
- wherein the heat-sensitive layer coats between about 80% to about 100% of the substrate.
12 more elements
Dependencies are inferred from the claim text.