Element as a receptor for nonimpact printing
AssigneeE. I. Du Pont de Nemours and Company
InventorsSteven J. Morganti, James H. Thirtle
Life of this patent
Estimating the term…
Abstract
An element useful for recording images using nonimpact type printing is described. This element is preferably comprised of a transparent support having an antistatic layer coated on one side and a print receptive layer coated on the other. In another embodiment another print receptive layer can be present over the antistatic layer. The print receptive layer is a novel combination of binder, crosslinking agent, whitener, and matte agent. Excellent, hard, sharp images are produced using conventional nonimpact printing devices such as ink jet, pen plotters and electrostatic imaging.
Claims18
A film element suitable for nonimpact printing comprising a polymeric shaped article having two sides, an antistatic coating on one side thereof, and at least the other side of said article bearing a print receptive layer consisting essentially of a binder, a whitening agent, a matte agent present in an amount of at least 0.4 g/m.sup.2 and a crosslinking agent for said binder, wherein said whitening agent is added in an amount sufficient to produce in the film element a transmission density to white light of at least 0.2.
A film element suitable for nonimpact printing comprising a dimensionally stable, polyester film support resin subbed on each side, 0.003 to 0.010 inch in thickness, on which is coated on one resin subbed side of the film at least one permanent antistatic layer consisting essentially of the reaction product of
- (1) a water-soluble, electrically conductive polymer having functionally attached carboxyl groups integral to the polymer, and
- (2) a polyfunctional substituted aziridine, wherein the hydrogen atom on a carbon atom of the aziridine ring is substituted with an alkyl substituent, where alkyl is of 1 to 6 carbon atoms, or an aryl substituent of 6 to 10 carbon atoms, the antistatic layer having a coating weight, based on the weight of conductive polymer (1), of 7 to 10 mg/dm.sup.2.
- and coated on the other resin subbed side of the film in order a thin substratum of hardened gelatin and a print receptive layer consisting essentially of
- (1) a gelatin binder,
- (2) a TiO.sub.2 whitening agent in an amount of 0.2 to 2.0 g/m.sup.2, to provide a transmission density to white light of 0.2 to 0.42,
- (3) a matte agent selected from the group consisting of silica, rice starch and polymethylmethacrylate beads in an amount of 0.4 to 1.2 g/m.sup.2, and
- (4) a formaldehyde and chrome alum crosslinking agent for the gelatin binder in an amount of 3 to 20 mg/g of the weight of the gelatin binder,
- the total dry coating weight of the print receptive layer being 4.0 to 5.9 g/m.sup.2.
A film element suitable for nonimpact printing comprising a dimensionally stable, polyester film support resin subbed on each side, 0.003 to 0.010 inch in thickness, on which is coated in order on one resin subbed side of the film at least one permanent antistatic layer consisting essentially of the reaction product of
- (1) a water-soluble, electrically conductive polymer having functionally attached carboxyl groups integral to the polymer, and
- (2) a polyfunctional substituted aziridine, wherein the hydrogen atom on a carbon atom of the aziridine ring is substituted with an alkyl substituent, where alkyl is of 1 to 6 carbon atoms, or an aryl substituent of 6 to 10 carbon atoms, the antistatic layer having a coating weight, based on the weight of conductive polymer (1), of 7 to 10 mg/dm.sup.2, and a print receptive layer consisting essentially of
- (1) a gelatin binder,
- (2) a TiO.sub.2 whitening agent in an amount of 0.2 to 2.0 g/m.sup.2,
- (3) a matte agent selected from the group consisting of silica, rice starch and polymethylmethacrylate beads in an amount of 0.4 to 1.2 g/m.sup.2, and
- (4) a formaldehyde and chrome alum crosslinking agent for the gelatin binder in an amount of 3 to 20 mg/g of the weight of the gelatin binder,
- and coated on the other resin subbed side of the film in order a thin substratum of hardened gelatin and a print receptive layer consisting essentially of
- (1) a gelatin binder,
- (2) a TiO.sub.2 whitening agent in an amount of 0.2 to 2.0 g/m.sup.2,
- (3) a matte agent selected from the group consisting of silica, rice starch and polymethylmethacrylate beads in an amount of 0.4 to 1.2 g/m.sup.2, and
- (4) a formaldehyde and chrome alum crosslinking agent for the gelatin binder in an amount of 3 to 20 mg/g of the weight of the gelatin binder,
- the dry coating weight of each print receptive layer being 4.0 to 5.9 g/m.sup.2, and the total transmission density to white light of the film element ranges from 0.2 to 0.42.
A film element suitable for nonimpact printing comprising a dimensionally stable, polyester film support resin subbed on each side, 0.003 to 0.010 inch in thickness, on which is coated on one resin subbed side of the film at least one permanent antistatic layer consisting essentially of the reaction product of
- (1) a water-soluble, electrically conductive polymer having functionally attached carboxyl groups integral to the polymer,
- (2) hydrophobic polymer containing carboxyl groups, and
- (3) a polyfunctional substituted aziridine, wherein the hydrogen atom on a carbon atom of the aziridine ring is substituted with an alkyl substituent, where alkyl is of 1 to 6 carbon atoms, or an aryl substituent of 6 to 10 carbon atoms, the antistatic layer having a coating weight, based on the weight of conductive polymer (1), of 7 to 10 mg/dm.sup.2.
- and coated on the other resin subbed side of the film in order a thin substratum of hardened gelatin and a print receptive layer consisting essentially of
- (1) a gelatin binder,
- (2) a TiO.sub.2 whitening agent in an amount of 0.2 to 2.0 g/m.sup.2, to provide a transmission density to white light of 0.2 to 0.42,
- (3) a matte agent selected from the group consisting of silica, rice starch and polymethylmethacrylate beads in an amount of 0.4 to 1.2 g/m.sup.2, and
- (4) a formaldehyde and chrome alum crosslinking agent for the gelatin binder in an amount of 3 to 20 mg/g of the weight of the gelatin binder,
- the total dry coating weight of the print receptive layer being 4.0 to 5.9 g/m.sup.2.
A film element suitable for nonimpact printing comprising a dimensionally stable, polyester film support resin subbed on each side, 0.003 to 0.010 inch in thickness, on which is coated in order on one resin subbed side of the film at least one permanent antistatic layer consisting essentially of the reaction product of
- (1) a water-soluble, electrically conductive polymer having functionally attached carboxyl groups integral to the polymer,
- (2) hydrophobic polymer containing carboxyl groups, and
- (3) a polyfunctional substituted aziridine, wherein the hydrogen atom on a carbon atom of the aziridine ring is substituted with an alkyl substituent, where alkyl is of 1 to 6 carbon atoms, or an aryl substituent of 6 to 10 carbon atoms, the antistatic layer having a coating weight, based on the weight of conductive polymer (1), of 7 to 10 mg/dm.sup.2, and a print receptive layer consisting essentially of
- (1) a gelatin binder,
- (2) a TiO.sub.2 whitening agent in an amount of 0.2 to 2.0 g/m.sup.2,
- (3) a matte agent selected from the group consisting of silica, rice starch and polymethylmethacrylate beads in an amount of 0.4 to 1.2 g/m.sup.2, and
- (4) a formaldehyde and chrome alum crosslinking agent for the gelatin binder in an amount of 3 to 20 mg/g of the weight of the gelatin binder,
- and coated on the other resin subbed side of the film in order a thin substratum of hardened gelatin and a print receptive layer consisting essentially of
- (1) a gelatin binder,
- (2) a TiO.sub.2 whitening agent in an amount of 0.2 to 2.0 g/m.sup.2,
- (3) a matte agent selected from the group consisting of silica, rice starch and polymethylmethacrylate beads in an amount of 0.4 to 1.2 g/m.sup.2, and
- (4) a formaldehyde and chrome alum crosslinking agent for the gelatin binder in an amount of 3 to 20 mg/g of the weight of the gelatin binder,
- the dry coating weight of each print receptive layer being 4.0 to 5.9 g/m.sup.2, and the total transmission density to white light of the film element ranges from 0.2 to 0.42.
Dependencies are inferred from the claim text.