Method for preparing high-reduction water-alcohol color jet-ink

A color inkjet and water-alcohol technology, applied in ink, household utensils, applications, etc., can solve the problem of low definition, achieve high color reproduction, prevent diffusion, and clear ink dots

Inactive Publication Date: 2012-04-25
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the printing inks in China are produced and imaged in a single physical dissolution process. Such imaging is diffused due to the penetration of color dots, so the definition is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Mix the metal complex dye alcohol black B-20, butanol and diethanolamine in a mass ratio of 10:86:4, and then aminate at 50°C for 4 hours to obtain a water-dilutable dye solution; Mix the dye solution with conductive agent HS-DN, deionized water and color spray color fixing agent NF-30 in a mass ratio of 86:1:10:3, then ultrasonically disperse for 2 hours, and obtain highly reduced water after filtration Alcohol color inkjet. The color of this product is similar to that of the standard sample (the L / A / B value of the standard sample black color is 10.00, 5.00, 4.00). After testing, the color reduction degree is 98%, the viscosity is 20±2cps, the drying speed is 5s, and the coloring The strength is 105%, the fineness is ≤0.1μm, the pH value is 7.3, the water resistance is 48 hours, the oil resistance is 8 hours, and the rub resistance is 200 times.

Embodiment 2

[0019] Mix the metal complex dye alcohol soluble yellow, isopropanol and monoethanolamine in a mass ratio of 14:82:4, and then aminate at 55°C for 3 hours to obtain a water-dilutable dye solution; the dye solution Mix with conductive agent HS-DN, deionized water and color spray color fixing agent NF-30 in a mass ratio of 88:1:8:3, then ultrasonically disperse for 2.5 hours, and filter to obtain high-reduced water-alcohol color ink jet. The color of this product is similar to that of the standard sample yellow (the L / A / B value of the standard sample yellow color is 94.00, -8.00, 105.00). After testing, the color reduction degree is 98%, the viscosity is 20 ± 2cps, and the drying speed is 2 ~5s, tinting strength 95~110%, fineness ≤0.1μm, pH value 6.5~7.5, water resistance 48 hours, oil resistance 8 hours, rub resistance 200 times.

Embodiment 3

[0021] Mix the metal complex dye alcohol soluble red, isopropanol and triethanolamine in a mass ratio of 12:82:6, and then aminate at 60°C for 2 hours to obtain a water-dilutable dye solution; the dye solution Mix with conductive agent HS-DN, deionized water and color spray color fixing agent NF-30 in a mass ratio of 86:3:6:5, then ultrasonically disperse for 1.5 hours, and filter to obtain high-reduction water-alcohol color spray ink. The color of this product is similar to that of the standard sample red (the L / A / B value of the standard sample red color is 49.00, 82.00, -4.00). After testing, the color reduction degree is 98%, the viscosity is 20 ± 2cps, and the drying speed is 2 ~5s, tinting strength 95~110%, fineness ≤0.1μm, pH value 6.5~7.5, water resistance 48 hours, oil resistance 8 hours, rub resistance 200 times.

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PUM

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Abstract

The invention discloses a method for preparing high-reduction water-alcohol color jet-ink. The method comprises: mixing metal complex dye, alcohol and aminating agent well in a mass ratio of 2-15:75-96:3-12; performing amination for 2 to 4 hours at 50 to 60 DEG C to obtain dye solution which can be diluted with water; mixing the dye solution, conductive agent, deionized water and color ink jet fixing agent in a mass ratio of 70-90:1-2:10-25:3-12; performing ultrasonic dispersion for 1 to 2.5 hours; filtering the obtained product to obtain the high-reduction water-alcohol color jet-ink. The color jet-ink prepared by the method has the advantages of no toxicity, strong tinting strength, moderate ink pH, high color reduction degree and moderate drying speed, can be used in various high-speedprinters, and cannot be affected by seasons.

Description

technical field [0001] The invention relates to a preparation method of highly reduced water-alcohol color inkjet, which belongs to the field of fine chemical industry. Background technique [0002] The rapid growth of high-quality printing in the modern consumer world has an urgent and huge demand for direct digital printing systems. As a high-tech, high-reduction color water-alcohol color inkjet printing is widely used in various modern high-fidelity automatic printing. It can use electronic control methods to use the required graphics for new paper and other products. Print. Highly reduced water-alcohol color inkjet is a dye-based inkjet, which is made by dissolving dyes of different shades and different chemical structures in a solvent system and then aminated. This mixed solvent system contains a variety of different uses and different types of additives , due to the use of water and alcohol mixture, it effectively prevents the diffusion of color points during the ink...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/02C09D11/38
Inventor 易尧华牟笑竹张倩高睿遥
Owner WUHAN UNIV
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