Latex-based overcoat for ink-jet printing applications
AssigneeHewlett-Packard Development Company, L.P.
InventorsKent Vincent, Sivapackia Ganapathiappan
Life of this patent
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Abstract
Compositions, systems, and methods for protecting an ink-jet produced image printed on a substrate are provided. The composition can comprise a liquid vehicle and latex particulates dispersed in the liquid vehicle, wherein the latex particulates have a surface dielectric constant from 2.0 to 3.0 at room temperature, and a bulk density from 0.1 g/cm3 less to 0.1 g/cm3 greater than the vehicle density. An alternative composition can comprise a liquid vehicle and latex particulates dispersed in the liquid vehicle, wherein the latex particulates have a reactive surfactant covalently attached thereto.
Claims24
An overcoating composition for protecting a printed image on a substrate, said composition comprising:
- (a) a liquid vehicle void of colorant;
- and
- (b) latex particulates dispersed in the liquid vehicle, said latex particulates having a surface dielectric constant from 2.0 to 3.0 at room temperature, and a bulk density 0.1 g/cm3 less to 0.1 g/cm3 greater than the vehicle density,
- (c) surfactant adsorbed on the surface of the latex particulates,
- wherein the latex particulates are core-shell or inverse core-shell and have a glass transition temperature from 0° C. to 50° C.
An overcoating composition for protecting a printed image on a substrate, said composition comprising:
- (a) a liquid vehicle void of colorant;
- and
- (b) latex particulates dispersed in the liquid vehicle, said latex particulates having a surface dielectric constant from 2.0 to 3.0 at room temperature, and a bulk density 0.1 g/cm3 less to 0.1 g/cm3 greater than the vehicle density,
- (c) surfactant covalently attached to the surface of the latex particulates,
- wherein the latex particulates are core-shell or inverse core-shell and have a glass transition temperature from 0° C. to 50° C.
An overcoating composition for protecting a printed image on a substrate, said composition comprising:
- (a) a liquid vehicle void of colorant;
- and
- (b) latex particulates dispersed in the liquid vehicle, said latex particulates having a surface dielectric constant from 2.0 to 3.0 at room temperature, and a bulk density 0.1 g/cm3 less to 0.1 g/cm3 greater than the vehicle desity,
- wherein the latex particulates are core-shell or inverse core-shell and have a glass transition temperature from 0° C., and wherein the latex particulates contains a crosslinking agent polymerized therein at from 0.1 wt % to 5 wt % of the latex particulates.
An overcoating composition for protecting a printed image on a substrate, said composition comprising:
- (a) a liquid vehicle void of colorant;
- and
- (b) latex particulates dispersed in the liquid vehicle, said latex particulates having a surface dielectric constant from 2.0 to 3.0 at room temperature, and a bulk density 0.1 g/cm3 less to 0.1 g/cm3 greater than the vehicle density,
- wherein the latex particulates are core-shell or inverse core-shell and have a glass transition temperature from 0° C. to 50° C. and wherein the latex particulates are synthesized from monomers including at least one ring-containing monomer.
An overcoating composition for protecting a printed imgae on a substrate, said composition comprising:
- (a) a liquid vehicle void of colorant;
- and
- (b) latex particulates dispersed in the liquid vehicle, said latex particulates having a surface dielectric constant from 2.0 to 3.0 at room temperature, and a bulk density 0.1 g/cm3 less to 0.1 g/cm3 greater than the vehicle density,
- (c) an ultraviolet absorber bound to the latex particle,
- wherein the latex particulates are core-shell or inverse core-shell and have a glass transition temperature from 50° C.
A composition for protecting a printed image on a substrate, said composition comprising:
- (a) a liquid vehicle void of colorant;
- and
- (b) latex particulates dispersed in the liquid vehicle, said latex particulates having a reactive surfactant covalently attached thereto, wherein the latex particulates have a bulk density from 0.1 g/cm3 less to 0.1 g/cm3 greater than the vehicle density, and a surface dielectric constant from 2.0 to 3.0,
- wherein the latex particulates are core-shell or inverse core-shell.
A composition for protecting a printed image on a substrate, said composition comprising:
- (a) a liquid vehicle void of colorant;
- and
- (b) latex particulates dispersed in the liquid vehicle, said latex particulates having a reactive surfactant covalently attached thereto, wherein the latex particulates have a bulk density from 0.1 g/cm3 less to 0.1 g/cm3 greater than the vehicle density, and a surface dielectric constant from 2.0 to 3.0, and wherein a crosslinking agent is polymerized into the latex particulates at from 0.1 wt % to 5 wt %.
Dependencies are inferred from the claim text.