Alcohol-soluble printing ink and preparation method thereof

A printing ink and alcohol-soluble technology, which is applied in the field of alcohol-soluble printing ink and its preparation, can solve the problems that water-based printing ink has not yet been industrialized, and achieve the effects of easy cleaning, easy availability of raw materials, and pollution reduction.

Inactive Publication Date: 2010-10-20
佛山市顺德区乐从镇盛昌油墨有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the base resin for inks that can meet this performance requirement has not yet appeared on the market in China. Therefore, fully water-based printing inks have not yet been industrialized.

Method used

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  • Alcohol-soluble printing ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] As shown in Table 1, 20 parts of 35% polyamide resin alcohol solution and 2.5 parts of 45% nitrogossy alcohol solution were prepared with ethanol, and 20 parts of pigment (titanium dioxide), 0.1 part of dispersant, and tackifier were added. 0.2 parts of filler and 4.0 parts of filler (kaolin), stir well in the container, and take 5 / 6 of the measured amount of alcohol solvent: 26 parts of ethanol and 25 parts of ethyl acetate, and add them to the container to adjust the viscosity of the mixture. And mix uniformly, then disperse in a high-speed disperser for 30 minutes at high speed, transfer to a sand mill to grind to a particle size of less than 20μm, and then transfer the mixture to a high-speed disperser for high-speed dispersion for 10 minutes to obtain alcohol-soluble white ink, sample for inspection , Its fineness is 20μm, viscosity is 25s (20℃, 4 cups), adhesion is 100%, solid content is 25.3%, pH=8.5, color fastness ≥6 grade, pure white color.

Embodiment 2

[0024] As shown in Table 1, 12 parts of 50% polyamide resin alcohol solution and 2 parts of 45% nitrosospinal alcohol solution were prepared with isopropanol, and 32 parts of colorant (golden red), 0.05 part of dispersant, 0.08 parts of thickener, 2.0 parts of filler (heavy calcium carbonate), stir well in the container, take the measured amount of 5 / 6 alcohol solvent 15 parts of ethanol and 22 parts of ethyl acetate, add them to the container to adjust the mixing The viscosity of the material is mixed uniformly, and then dispersed in a high-speed disperser for 30 minutes at high speed, transferred to a sand mill to grind to a particle size of less than 12μm, and then transferred to the high-speed disperser for high-speed dispersion for 12 minutes to obtain alcohol solubility The red ink is sampled and tested. The fineness is 12μm. Take 1 / 6 of the remaining amount of the alcohol solvent, that is, 2.5 parts of ethanol and 3.7 parts of ethyl acetate to rinse the container. After m...

Embodiment 3

[0026] As shown in Table 1, 18 parts of 32% polyamide resin alcohol solution and 3 parts of 28% nitrogossy alcohol solution were prepared with ethanol. 24 parts of colorant (permanent yellow), 0.15 part of dispersant, and Viscosity 0.1 part, filler (kaolin) 6.0 parts, stir evenly in the container, take 5 / 6 of the measured amount of alcohol solvent: 24 parts of ethanol, 18 parts of ethyl acetate, add to the container to adjust the viscosity of the mixture, And mix uniformly, then disperse in a high-speed disperser for 25 minutes at high speed, transfer to a sand mill to grind to a particle size of less than 10μm, and then transfer the mixture to a high-speed disperser for high-speed dispersion for 14 minutes to obtain alcohol-soluble yellow ink, sample Inspection shows that its fineness is 11μm, viscosity is 24s (25°C, coating 4 cups), adhesion is 100%, solid content is 26%, pH=9.5, color fastness ≥6, and color is yellow.

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Abstract

The invention discloses an alcohol-soluble printing ink and a preparation method thereof. The ink consists of the following materials in part by weight: 12 to 18 parts of 20 to 50 percent of polyamide resin alcoholic solution, 1 to 5 parts of 25 to 60 percent of nitrocotton alcoholic solution, 12 to 32 parts of pigment, 0.05 to 0.3 parts of dispersing agent, 0.08 to 0.4 parts of tackifier and 2 to 10 parts of filling agent. The preparation technique for the ink includes the following steps: first preparing the alcohol-soluble polyamide resin alcoholic solution and blending a small amount of nitrocotton alcoholic solution, then adding the pigment, the dispersing agent, the tackifier and other auxiliaries, grinding the mixture into micron-grade grain size in a sand mill after about 30 minutes of high-speed dispersion, finally adding ethanol and other solvents to regulate the viscosity of the ink, continuing with dispersion for more than 10 minutes until the ink body becomes uniform, and carrying out inspection, discharging and packaging. Since the alcohol-soluble ink does not contain benzene solvent, no benzene solvent harms the bodies of people producing, using and touching the ink, and the pollution of the atmosphere and the environment, which is caused by the emission of toxic gas, is greatly reduced.

Description

Technical field [0001] The invention relates to the technical field of printing inks, in particular to an alcohol-soluble printing ink and a preparation method thereof. Background technique [0002] The chemical industry provides high-tech materials that can meet various performance requirements for the development of human society and various industries, and inks that are environmentally friendly, energy-saving, and suitable for high-speed and high-quality printing are also one of them. Water-based, high-solid, radiation-cured inks are the development direction of the 21st century. However, domestic ink base resins that can meet this performance requirement have not yet been marketed, and therefore, completely water-based printing inks have not yet been industrialized. The printing inks on the market are still mainly oil-soluble. [0003] At present, considering environmental protection and quick-drying, alcohol-soluble ink is an effective way and bridge for the transition from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10C09D11/033C09D11/102C09D11/14
Inventor 梁鉴锋
Owner 佛山市顺德区乐从镇盛昌油墨有限公司
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