Ink jet printing process for desensitizing carbonless paper
First Claim
1. A printing process which comprises (a) incorporating into a thermal ink jet printing apparatus having nozzles for containing ink a carbonless paper set comprising a first sheet, a second sheet, and optional intermediate sheets situated between the first sheet and second sheet, wherein the first sheet comprises paper coated on one surface with a color former and the second sheet comprises paper coated on one surface with a color developer, and wherein, when the carbonless paper set is assembled, the surface of the first sheet coated with the color former is in contact with the surface of a sheet coated with the color developer and the surface of the second sheet coated with the color developer is in contact with the surface of a sheet coated with the color former;
- (b) incorporating into the printing apparatus a desensitizing material comprising water, an organic component, and a desensitizing agent capable of interacting either (i) with the color former so that the color former'"'"'s subsequent ability to interact with the color developer is reduced, or (ii) with the color developer so that the color developer'"'"'s subsequent ability to interact with the color former is reduced; and
(c) selectively heating the desensitizing material in the nozzles in an imagewise pattern, thereby causing droplets of the desensitizing material to be ejected in an imagewise pattern onto either (i) at least one surface of one sheet coated with the color former, or (ii) at least one surface of one sheet coated with the color developer.
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Accused Products
Abstract
Disclosed is a printing process which comprises (a) incorporating into a printing apparatus capable of generating ink jet images a carbonless paper set comprising a first sheet, a second sheet, and optional intermediate sheets situated between the first sheet and second sheet, wherein the first sheet comprises paper coated on one surface with a color former and the second sheet comprises paper coated on one surface with a color developer, and wherein, when the carbonless paper set is assembled, the surface of the first sheet coated with the color former is in contact with the surface of a sheet coated with the color developer and the surface of the second sheet coated with the color developer is in contact with the surface of a sheet coated with the color former; (b) incorporating into the printing apparatus an ink jet ink comprising water, an organic component, and a desensitizing agent capable of interacting either (i) with the color former so that the color former'"'"'s subsequent ability to interact with the color developer is reduced, or (ii) with the color developer so that the color developer'"'"'s subsequent ability to interact with the color former is reduced; and (c) causing droplets of the ink containing the desensitizing agent to be ejected in an imagewise pattern onto either (i) at least one surface of one sheet coated with the color former, or (ii) at least one surface of one sheet coated with the color developer.
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Citations
20 Claims
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1. A printing process which comprises (a) incorporating into a thermal ink jet printing apparatus having nozzles for containing ink a carbonless paper set comprising a first sheet, a second sheet, and optional intermediate sheets situated between the first sheet and second sheet, wherein the first sheet comprises paper coated on one surface with a color former and the second sheet comprises paper coated on one surface with a color developer, and wherein, when the carbonless paper set is assembled, the surface of the first sheet coated with the color former is in contact with the surface of a sheet coated with the color developer and the surface of the second sheet coated with the color developer is in contact with the surface of a sheet coated with the color former;
- (b) incorporating into the printing apparatus a desensitizing material comprising water, an organic component, and a desensitizing agent capable of interacting either (i) with the color former so that the color former'"'"'s subsequent ability to interact with the color developer is reduced, or (ii) with the color developer so that the color developer'"'"'s subsequent ability to interact with the color former is reduced; and
(c) selectively heating the desensitizing material in the nozzles in an imagewise pattern, thereby causing droplets of the desensitizing material to be ejected in an imagewise pattern onto either (i) at least one surface of one sheet coated with the color former, or (ii) at least one surface of one sheet coated with the color developer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- (b) incorporating into the printing apparatus a desensitizing material comprising water, an organic component, and a desensitizing agent capable of interacting either (i) with the color former so that the color former'"'"'s subsequent ability to interact with the color developer is reduced, or (ii) with the color developer so that the color developer'"'"'s subsequent ability to interact with the color former is reduced; and
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19. A printing process which comprises (a) incorporating into an imaging apparatus capable of generating both electrostatic images and thermal ink jet images a carbonless paper set comprising a first sheet, a second sheet, and optional intermediate sheets situated between the first sheet and second sheet, wherein the first sheet comprises paper coated on one surface with a color former and the second sheet comprises paper coated on one surface with a color developer, and wherein, when the carbonless paper set is assembled, the surface of the first sheet coated with the color former is in contact with the surface of a sheet coated with the color developer and the surface of the second sheet coated with the color developer is in contact with the surface of a sheet coated with the color former;
- (b) generating an electrostatic latent image on an imaging member in the imaging apparatus, developing the latent image with a toner, and contacting the developed image on the imaging member with the first sheet of the carbonless paper set, thereby transferring the developed image to the first sheet;
(c) generating an electrostatic latent image on the imaging member in the imaging apparatus, developing the latent image with a toner, and contacting the developed image on the imaging member with the second sheet of the carbonless paper set, thereby transferring the developed image to the second sheet;
(d) optionally permanently affixing the transferred images to the first and second sheets;
(e) incorporating into ink nozzles in the printing apparatus a desensitizing material comprising water, an organic component, and a desensitizing agent capable of interacting either (i) with the color former so that the color former'"'"'s subsequent ability to interact with the color developer is reduced, or (ii) with the color developer so that the color developer'"'"'s subsequent ability to interact with the color former is reduced; and
(f) selectively heating the desensitizing material in the nozzles in an imagewise pattern, thereby causing droplets of the desensitizing material to be ejected in an imagewise pattern onto either (i) at least one surface of one sheet coated with the color former, or (ii) at least one surface of one sheet coated with the color developer.
- (b) generating an electrostatic latent image on an imaging member in the imaging apparatus, developing the latent image with a toner, and contacting the developed image on the imaging member with the first sheet of the carbonless paper set, thereby transferring the developed image to the first sheet;
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20. A printing process which comprises (a) incorporating into a thermal ink jet imaging apparatus having nozzles for containing ink a carbonless paper set comprising a first sheet, a second sheet, and optional intermediate sheets situated between the first sheet and second sheet, wherein the first sheet comprises paper coated on one surface with a color former and the second sheet comprises paper coated on one surface with a color developer, and wherein, when the carbonless paper set is assembled, the surface of the first sheet coated with the color former is in contact with the surface of a sheet coated with the color developer and the surface of the second sheet coated with the color developer is in contact with the surface of a sheet coated with the color former;
- (b) incorporating into the printing apparatus an ink jet ink comprising water and a colorant;
(c) selectively heating the ink containing the colorant in the nozzles in an imagewise pattern, thereby causing droplets of the ink containing the colorant to be ejected in an imagewise pattern onto at least one surface of the first sheet;
(d) selectively heating the ink containing the colorant in the nozzles in an imagewise pattern, thereby causing droplets of the ink containing the colorant to be ejected in an imagewise pattern onto at least one surface of the second sheet;
(e) incorporating into the printing apparatus a desensitizing material comprising water, an organic component, and a desensitizing agent capable of interacting either (i) with the color former so that the color former'"'"'s subsequent ability to interact with the color developer is reduced, or (ii) with the color developer so that the color developer'"'"'s subsequent ability to interact with the color former is reduced; and
(f) selectively heating the desensitizing material in the nozzles in an imagewise pattern, thereby causing droplets of the ink containing the desensitizing agent to be ejected in an imagewise pattern onto either (i) at least one surface of one sheet coated with the color former, or (ii) at least one surface of one sheet coated with the color developer.
- (b) incorporating into the printing apparatus an ink jet ink comprising water and a colorant;
Specification