Printing strategy for improved image quality and durability
First Claim
Patent Images
1. An ink-jet printing apparatus comprising:
- at least one printhead portion including a fixer fluid comprising a colorant precipitating component, and at least one printhead portion including an inkjet ink comprising a colorant;
wherein, before the inkjet ink is printed onto a zone of a medium, a layer of the fixer fluid is underprinted and at least partially dried onto the zone to be inkjet printed, and after the inkjet ink is printed onto the zone, the fixer fluid is overprinted and at least partially dried onto the zone;
and wherein there is a 0.1 to 2 second break between the underprinting of the fixer fluid layer and the printing of the inkjet ink onto the zone to allow the fixer fluid to partially dry;
and wherein there is a 0.1 to 2 second break between the inkjet printing of the image onto the zone of the medium and the overprinting of the fixer fluid layer onto the zone to allow the inkjet printed image to partially dry.
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Abstract
Underprinting and/or overprinting clear fixer liquid onto an inkjet printed image, giving time for underprinted fixer to partially dry before depositing the inkjet printed image and/or giving time for the inkjet printed image to dry before overprinting the clear fixer liquid.
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Citations
31 Claims
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1. An ink-jet printing apparatus comprising:
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at least one printhead portion including a fixer fluid comprising a colorant precipitating component, and at least one printhead portion including an inkjet ink comprising a colorant;
wherein, before the inkjet ink is printed onto a zone of a medium, a layer of the fixer fluid is underprinted and at least partially dried onto the zone to be inkjet printed, and after the inkjet ink is printed onto the zone, the fixer fluid is overprinted and at least partially dried onto the zone;
and wherein there is a 0.1 to 2 second break between the underprinting of the fixer fluid layer and the printing of the inkjet ink onto the zone to allow the fixer fluid to partially dry;
and wherein there is a 0.1 to 2 second break between the inkjet printing of the image onto the zone of the medium and the overprinting of the fixer fluid layer onto the zone to allow the inkjet printed image to partially dry. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An underprinting fixer fluid comprising a colorant precipitating component;
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wherein, after a layer of the underprinting fixer fluid is applied onto a zone to be inkjet printed on a medium and before inkjet printing an image onto the zone, the layer of underprinting fixer fluid is at least partially dried;
and wherein there is a 0.1 to 2 second break between the underprinting of the fixer fluid layer and the printing of the inkjet ink onto the zone to allow the fixer fluid to partially dry. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An overprinting fixer fluid comprising a colorant precipitating component;
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wherein, after inkjet printing an image onto a zone of the medium, a layer of the overprinting fixer fluid is applied onto the zone and the layer of overprinting fixer fluid is at least partially dried;
and wherein there is a 0.1 to 2 second break between the inkjet printing of the image onto the zone of the medium and the overprinting of the fixer fluid layer onto the zone to allow the inkjet printed image to partially dry. - View Dependent Claims (14, 15, 16, 17, 18)
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19. An inkjet ink comprising a colorant
wherein, before the inkjet ink is printed onto a zone of a medium, a layer of an underprinting fixer fluid is applied and at least partially dried onto the zone to be inkjet printed, the underprinting fixer fluid comprising a colorant precipitating component, and after the inkjet ink is printed onto the zone, an overprinting fixer fluid is applied and at least partially dried onto the zone, the overprinting fixer fluid comprising a colorant precipitating component; -
and wherein there is a 0.1 to 2 second break between the underprinting of the fixer fluid layer and the printing of the inkjet ink onto the zone to allow the fixer fluid to partially dry;
and wherein there is a 0.1 to 2 second break between the inkjet printing of the image onto the zone of the medium and the overprinting of the fixer fluid layer onto the zone to allow the inkjet printed image to partially dry. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A method of ink-jet printing, the method comprising the steps of:
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a) applying a layer of an underprinting fixer fluid onto a zone to be inkjet printed on a medium, the underprinting fixer fluid comprising a colorant precipitating component;
b) at least partially drying the layer of underprinting fixer fluid;
c) inkjet printing an image onto the dried layer of underprinting fixer fluid on the zone;
d) at least partially drying the inkjet printed image;
e) applying a layer of an overprinting fixer fluid over the zone on the medium, the overprinting fixer fluid comprising a colorant precipitating component; and
f) at least partially drying the layer of overprinting fixer fluid;
wherein there is a 0.1 to 2 second break between the underprinting of the fixer fluid layer and the printing of the inkjet ink onto the zone to allow the fixer fluid to partially dry;
and wherein there is a 0.1 to 2 second break between the inkjet printing of the image onto the zone of the medium and the overprinting of the fixer fluid layer onto the zone to allow the inkjet printed image to partially dry. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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Specification