Method of enhancing adhesion of liquid toner printed on a substrate, and products therefrom
AssigneeSolenis Technologies, L.P.
InventorDaniel F Varnell
Life of this patent
Estimating the term…
Abstract
A method of improving the adhesion of a liquid ink to a substrate where the ink is applied to the substrate using an LEP printing process, and products therefrom.
Claims16
A method of enhancing adhesion of an image to at least one surface of a substrate where the image was from an electrophotographic printer utilizing liquid toner technology and the image was based on a liquid toner, the method, comprising treating at least a portion of a substrate prior to printing with a composition comprising a water soluble or water dispersible binder and a water soluble or water dispersible binder additive, wherein the binder additive comprises a polymer comprising one or more repeat units, wherein the one or more repeat units has a localized strong, negatively charged dipole and no strongly positively charged dipole;
- wherein the binder additive comprises a polymer produced from one or more monomers selected from the group consisting of vinylpyrrolidone, an oxazoline-containing monomer, N-vinyl piperidinone, vinylcaprolactam, N,N-dimethyl acrylamide, and combinations thereof and (ii) optionally one or more non-ionic monomers or optionally (iii) one or more non-hydrogen bonding monomers, provided the binder additive comprises one or more oxazoline-containing monomers selected from the group consisting of 2-ethyl-2-oxazoline, 2-methyloxazoline, and combinations thereof.
A method of enhancing adhesion of a liquid toner based image to at least one surface of a substrate, comprising:
- (a) surface treating at least a portion of at least one surface of a substrate with a composition comprising a binder and a binder additive to form a print receiving coating on at least a portion of the at least one surface of the substrate;
- and (b) liquid electrophotographic printing an image on at least a portion of the print receiving coating using a liquid toner;
- wherein the binder additive comprises a polymer comprising one or more repeat units, wherein the one or more repeat units has a localized strong, negatively charged dipole and no strongly positively charged dipole;
- wherein the binder is selected from the group consisting of polyvinyl alcohol, oxidized starch, cationized starch, esterified starch, enzymatically denatured starch, gelatin, casein, soybean protein, carboxy-methyl cellulose, hydroxyethyl cellulose, acrylic emulsion, vinyl acetate emulsion, vinylidene chloride emulsion, polyester emulsion, styrene-butadiene emulsion, acrylonitrile-butadiene latex, and combinations thereof;
- and
- wherein the binder additive comprises a polymer produced from one or more monomers selected from the group consisting of vinylpyrrolidone, an oxazoline-containing monomer, N-vinyl piperidinone, vinylcaprolactam, N,N-dimethyl acrylamide, and combinations thereof and (ii) optionally one or more non-ionic monomers or optionally (iii) one or more non-hydrogen bonding monomers, provided the binder additive comprises one or more oxazoline-containing monomers selected from the group consisting of 2-ethyl-2-oxazoline, 2-methyloxazoline, and combinations thereof.
A printed material, comprising:
- (a) a treated substrate comprising a substrate treated with a composition comprising a binder and a binder additive to form a treated substrate, and (b) an image on at least a portion of one surface of the treated substrate, wherein the image is printed on the treated substrate using a liquid electrophotographic printer and a liquid toner;
- wherein the binder additive comprises a polymer comprising one or more repeat units, wherein the one or more repeat units has a localized strong, negatively charged dipole and no strongly positively charged dipole;
- wherein the binder additive comprises a polymer produced from one or more monomers selected from the group consisting of vinylpyrrolidone, an oxazoline-containing monomer, N-vinyl piperidinone, vinylcaprolactam, N,N-dimethyl acrylamide, and combinations thereof and (ii) optionally one or more non-ionic monomers or optionally (iii) one or more non-hydrogen bonding monomers, provided the binder additive comprises one or more oxazoline-containing monomers selected from the group consisting of 2-ethyl-2-oxazoline, 2-methyloxazoline, and combinations thereof.
Dependencies are inferred from the claim text.