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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, shortening service life, and burning, and achieve the effects of improving cleaning efficiency, saving resources, and reducing waste.

Inactive Publication Date: 2014-02-19
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 heated to 80℃ to become liquid 1;

[0044] 2. Formulate sulfuric acid and methanol into A agent according to the weight ratio of 1:30;

[0045] 3. Add agent A to 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 allowed to stand for 12 hours, the bottom color light brownish yellow solution F1 is released, and the rest becomes liquid 2.

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

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

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

[0050] 8. After standing for 12 hours, the bottom layer so...

Embodiment 2

[0055] 1. The natural oil is heated to 75℃ to become liquid 1;

[0056] 2. Formulate sulfuric acid and methanol into A agent according to the weight ratio of 1:25;

[0057] 3. Add agent A to 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 allowed to stand for 13 hours, light brownish yellow solution F1 is released, and the rest becomes liquid 2.

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

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

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

[0062] 8. After standing for 13 hours, the bottom layer solution F3 (light brownish yellow) is rel...

Embodiment 3

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

[0068] 2. Formulate sulfuric acid and methanol to form A agent at a weight ratio of 1:35;

[0069] 3. Add agent A to 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 allowed to stand for 12 hours, the bottom color light brownish yellow solution F1 is released, and the rest becomes liquid 2.

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

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

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

[0074] 8. After standing for 12 hours, the bottom layer solu...

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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 press and printing quality. [0003] At present, the 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 shortcomings: First, gasoline and kerosene are flammable products, and there is a risk of burning during use; second, gasoline and kerosene are volatile organic solvents that are used Those who are more or less inhaled into the body, thus causing adverse effects on human health. In addition, gasoline and kerosene have a swelling effect on the ink roller and blanket, which will cause cracks on the surface after a long period of use, reducing the service life. Summary of the in...

Claims

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Application Information

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