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Ink Printing method utilizing stabilized polymeric particles

A polymer particle, polymer technology, applied in the field of ink printing, can solve problems such as ink difference stability, and achieve the effect of enhanced dye stability and good image quality

Inactive Publication Date: 2003-10-22
EASTMAN KODAK CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem with this element is that the ink printed on it has poor stability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] Synthesis Example 1. Synthesis of Dispersant 1

[0132] Acrylamide (35.50 g, 0.50 mol) and 1-dodecanethiol (10.10 g, 0.050 mol) were suspended in ethanol (250 ml) in a 1 L three-neck round bottom flask equipped with a reflux condenser under nitrogen atmosphere . The solution was stirred and degassed with nitrogen for 20 minutes. Stirring was continued and the temperature was raised to 70°C over a period of 20 minutes during which time the reagents dissolved. 2,2′-Azo-bis(2-methylpropionitrile)[AIBN] (1.00 g, 6.10 mmol) was added to the stirred solution at 70° C., and heating was continued under the control of the automated reactor system 4 hours. During this time, a white suspension formed. After cooling, the obtained white precipitate was filtered under suction and dried under vacuum to give a white powder (39.6 g, 87%). Analysis of this product was consistent with the desired product.

Embodiment 2

[0133] Synthesis Example 2. Synthesis of Dispersant 2

[0134] Dispersant 2 was synthesized by using the same procedure as Dispersant 1, except that a higher molar ratio of acrylamide to dodecanethiol (20:1) was used.

Embodiment 3

[0135] Synthesis Example 3. Synthesis of Dispersant 3

[0136] N-acryloyltris(hydroxymethyl)aminomethane (52.5g, 0.40mol), hexadecylmercaptan (5.20g, 0.20mol), and AIBN (0.20g) were added to methanol (100ml) in 3 necked flask. The reaction was degassed by bubbling argon for 20 minutes and heated at reflux under an atmosphere of argon for 6 hours. After cooling, a sticky, white mass formed in the solution. The methanol was decanted off and the product redissolved in water. Freeze drying gave a white solid (40.5 g, 70%).

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Abstract

The present invention discloses an ink printing method using an image-recording element which provides an image having excellent image quality and superior dry time comprising the steps of: a) providing an ink image-recording element comprising a support having thereon at least one image-receiving layer comprising polymeric particles in a polymeric binder, wherein said polymeric particle is stabilized by a hydrophobically-capped oligomeric acrylamide dispersant; and b) applying liquid ink droplets thereon in an image-wise manner. A further embodiment of the disclosed method comprises the steps of: a) providing an ink printer that is responsive to digital data signals b) loading said printer with an image-recording element comprising a support having thereon at least one image-receiving layer comprising polymeric particles in a polymeric binder, wherein said polymeric particle is stabilized by a hydrophobically-capped oligomeric acrylamide dispersant; c) loading said printer with an ink composition; and d) printing on said image-recording element using said ink composition in response to said digital data signals.

Description

technical field [0001] The present invention relates to ink printing methods. More specifically, the present invention relates to ink printing methods using ink recording elements containing water-dispersible polymer particles stabilized by a dispersant. Background technique [0002] In a typical inkjet recording or printing system, ink droplets are ejected from nozzles at high velocity toward a recording element or medium, thereby producing an image on the medium. The ink droplets, or recording liquid, typically include a recording agent, such as a dye or pigment, and a large amount of solvent. The solvent, or carrier liquid, typically consists of water, organic materials such as monohydric alcohols, polyols, or mixtures thereof. [0003] Inkjet recording elements typically include a substrate having an ink-receiving or image-forming layer on at least one surface thereof, and include those having opaque substrates for reflection imaging (viewing), and those for imaging by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01B41M5/00B41M5/50B41M5/52
CPCB41M5/5236B41M5/52B41M5/5272B41M5/5254B41M5/5281
Inventor J·E·凯丁J·W·莱昂C·J·兰德里-科尔特赖恩A·R·皮特T·J·维尔G·E·米塞尔D·E·史密斯
Owner EASTMAN KODAK CO