Digital painting printing ink containing pigment and dye, preparation thereof

A digital inkjet and pigment technology, used in inks, household appliances, applications, etc., can solve the problems of complex production process of pigment pre-dispersion, poor water fastness, light fastness, and taking a long time, so as to facilitate industrial production, The effect of high color fastness and low price

Inactive Publication Date: 2005-05-11
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The colorant (dye) in the water-based ink is dissolved in the ink composition, but the water-based ink containing soluble dyes has problems such as poor water fastness and light fastness
There is still a big disadvantage of water-based ink for industrial applications, that is, the drying problem, because the low evaporation rate of water causes the drying process of water-based ink to take a long time, even if a heater is used, it still takes a long time to dry time
At the same time, the substrates that can be used for water-based inks also have certain

Method used

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  • Digital painting printing ink containing pigment and dye, preparation thereof
  • Digital painting printing ink containing pigment and dye, preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Cyan ink preparation process and the ratio of each component

[0032] First the Microlith4G-K pigment preparation of Ciba Company and ethylene glycol butyl ether acetate were mixed according to the weight components of 20% and 80% and stirred at a high speed for 30 minutes to prepare high-concentration color paste A; then the BASF Company's Blue 807 solvent dye and ethylene glycol butyl ether acetate were mixed according to 20% and 80% by weight components and stirred at high speed for 60 minutes to prepare high-concentration color paste B. Finally carry out batching according to the proportioning of table 1:

[0033] Component

[0034] And the prepared ink was stirred at a high speed for 30 minutes and then filtered. After testing on the machine and comparing with the cyan ink produced by INKWARE in the United States, it was found that the ink of the present invention has the advantages of bright colors and smooth spraying. According to actual...

example 2- example 4

[0036] Example 2-Example 4 is the ratio of magenta M, yellow Y, black K three color inks

[0037] Prepare the inks of M, Y, and K colors according to the preparation steps of Example 1 cyan, and the proportions are shown in Table 2.

[0038] Example 2 magenta ink (M)

Example 3 yellow ink (Y)

Example 4 black ink (K)

Color paste A

20

10

10

Color paste B

5

5

8

Rohm and Haas A11 Acrylic

acid resin

1

5

3

Cyclohexanone

20

20

20

Dipropylene glycol methyl ether acetate

ester

30

30

30

Ethylene glycol butyl ether acetate

22

28

27

Surfactant

SURFYNO104

0.5

0.5

0.5

UV absorber UV-9

0.5

0.5

0.5

Plasticizer terephthalic acid

Dioctyl ester

0.6

0.6

0.6

Defoamer 1026

0.2

0...

Embodiment 5-6

[0043] Example 5-Example 6 is the ratio of light cyan and light magenta ink

[0044] Prepare light cyan and light magenta inks according to the preparation process of cyan in Example 1, wherein the color paste A and color paste B used for light cyan are the same as the color paste for cyan in Example 1, and the color paste A and color paste B for light magenta are the same as in the same example 2 For the color paste used in magenta, see Table 3 for the ratio.

[0045] Example 5 light cyan ink

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PUM

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Abstract

A numerical-code spraying ink containing pigment and dyestuff is prepared by adding in the pigment and dyestuff, because the price of solvent dyestuff is cheaper than the organic dyestuff. So it will decrease the cost. Colors of the ink include bluish, fuchsin, yellow and black. The process is so simple enough to industrial production.

Description

technical field [0001] The invention relates to a solvent-based ink, in particular to an ink suitable for large digital inkjet printers. Background technique [0002] In recent years, large-scale inkjet printers have developed rapidly with the development of the computer industry. According to the working principle of the nozzle, inkjet printers can be divided into thermal foam type and piezoelectric crystal type. Thermal foam nozzles are mainly used in inkjet machines of companies such as Hewlett Packard Corporation and Mimaki. These nozzles mainly use water-based inks, and the colorants are usually dyes; piezoelectric crystal nozzles are mainly used in Vutek. ), Yaselan and other companies’ inkjet printers, this type of nozzle mainly uses solvent-based inks, and the colorant is organic pigments. Nozzles with different working principles have different performance requirements for inks. For example, the viscosity of ink used in thermal foam nozzles is 3-5 centipoise (25°C)...

Claims

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Application Information

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IPC IPC(8): C09D11/322C09D11/328
Inventor 李文彬陈大俊王夏琴
Owner DONGHUA UNIV
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