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Printing ink cleaning solvent and preparation method thereof

A solvent and printing ink technology, applied in the field of ink cleaning solvent and its preparation, can solve problems such as adverse effects on human health, reduced service life, surface cracks, etc., and achieve the effects of improving cleaning efficiency, saving resources, and reducing volatilization

Inactive Publication Date: 2011-06-08
谢丹青
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gasoline and kerosene are broad-spectrum organic solvents with low prices, but they have the following disadvantages: one is that gasoline and kerosene are flammable, and there is a danger of burning during use; Or more or less will be inhaled into the body, thus causing adverse effects on human health
In addition, gasoline and kerosene have a swelling effect on ink rollers and blankets, which will cause cracks on the surface after a long period of use, reducing the service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1. The recovered natural oil is filtered, dried and precipitated, and then heated to 80°C to become a liquid1;

[0044] 2. Prepare sulfuric acid and methanol into agent A in a weight ratio of 1:30;

[0045] 3. Add agent A into liquid 1 at a volume ratio of 1:8, control the temperature at 80°C, stir and react for 1 hour to form agent B;

[0046] 4. After agent B is left to stand for 12 hours, the bottom color light brown solution F1 will be released, and the rest will become liquid 2.

[0047] 5. Prepare caustic soda and methanol according to the weight ratio of 1:30 to form C agent;

[0048] 6. Heat liquid 2 to 80°C, add agent C to liquid 2 at a volume ratio of 1:6, stir and mix for 1 hour, keep warm for 3.5 hours, and release bottom solution F2.

[0049] 7. Draw out and condense the methanol under negative pressure. During this process, continue to stir and keep the temperature for 45 minutes, then cool down naturally.

[0050] 8. After standing still for 12 hours, ...

Embodiment 2

[0055] 1. Natural oil is heated to 75°C to become liquid 1;

[0056] 2. Prepare sulfuric acid and methanol into agent A in a weight ratio of 1:25;

[0057] 3. Add agent A into liquid 1 at a volume ratio of 1:6, control the temperature at 75°C, stir and react for 2 hours to form agent B;

[0058] 4. After agent B is left to stand for 13 hours, the bottom color light brown solution F1 will be released, and the rest will become liquid 2.

[0059] 5. Prepare caustic soda and methanol according to the weight ratio of 1:25 to form C agent;

[0060] 6. Heat the liquid 2 to 75°C, add agent C to the liquid 2 at a volume ratio of 1:8, stir and mix for 2 hours, keep it warm for 3 hours, and release the bottom solution F2.

[0061] 7. Draw out and condense the methanol under negative pressure. During this process, continue to stir and keep the temperature for 60 minutes, then cool down naturally.

[0062] 8. After standing still for 13 hours, release the bottom layer solution F3 (light...

Embodiment 3

[0067] 1. The recovered natural oil is filtered, dried and precipitated, and then heated to 85°C to become a liquid1;

[0068] 2. Prepare sulfuric acid and methanol into agent A in a weight ratio of 1:35;

[0069] 3. Add agent A into liquid 1 at a volume ratio of 1:10, control the temperature at 85°C, stir and react for 0.5 hours to form agent B;

[0070] 4. After agent B is left to stand for 12 hours, the bottom color light brown solution F1 will be released, and the rest will become liquid 2.

[0071] 5. Prepare caustic soda and methanol according to the weight ratio of 1:35 to form C agent;

[0072] 6. Heat the liquid 2 to 85°C, add agent C to the liquid 2 at a volume ratio of 1:10, stir and mix for 0.5 hours, keep it warm for 4 hours, and release the bottom solution F2.

[0073] 7. Draw out and condense the methanol under negative pressure. During this process, continue to stir and keep the temperature for 30 minutes, then cool down naturally.

[0074] 8. After standing s...

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PUM

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Abstract

The invention relates to a printing ink cleaning solvent and a preparation method thereof, wherein the solvent is prepared by adopting the steps of dehydration, pre-lipidation, alcoholysis, alcohol-removed washing, acid-base adjustment and final addition of surfactant. The solvent provided by the invention has the advantages of strong dissolving effect, small volatilization, high fire point, environmental protection and the like.

Description

technical field [0001] The invention relates to an ink cleaning solvent and a preparation method thereof. Background technique [0002] In the printing industry, printing equipment needs to clean the ink regularly during the production process to maintain the normal state of the printing machine and the printing quality. [0003] Currently commonly used ink cleaning agents are mainly gasoline and kerosene. Gasoline and kerosene are broad-spectrum organic solvents with low prices, but they have the following disadvantages: one is that gasoline and kerosene are flammable, and there is a danger of burning during use; Or more or less will be inhaled into the body, thus causing adverse effects on human health. In addition, gasoline and kerosene have a swelling effect on ink rollers and blankets, which will cause cracks on the surface after a long period of use and reduce the service life. Contents of the invention [0004] The present invention aims to overcome the above dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D9/04
Inventor 谢丹青王文慎
Owner 谢丹青