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Alcohol-free concentrated fountain solution and preparation method thereof

A technology of fountain solution and concentrated solution, which is applied in the preparation and printing of printing surface, can solve the problems of large amount of alcohol or isopropyl alcohol added, high requirements for operation proficiency, and cannot be universally applied, and achieves spreading. Fast speed, wide adaptability, and the effect of improving air quality

Inactive Publication Date: 2012-01-04
冯星枢 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Alcohol or isopropanol has certain toxicity and is harmful to the human body. Long-term exposure will cause chronic poisoning of the human respiratory system, liver and kidney, and endanger the health of operators.
[0004] 2. Alcohol or isopropanol are highly volatile organic solvents. About 40% of them are wasted due to volatilization during use, which also causes pollution to the environment. It is precisely because of the extremely high volatility of alcohol and isopropanol Therefore, the amount of alcohol or isopropanol to be added must be large, and it must be continuously replenished to maintain a certain concentration to ensure the stability of printing
[0008] 1. Not universally applicable
It can be used on new machines, but it cannot be used on older machines; or it can be used on some brands of machines, but it cannot be used on other brands of machines; The printed matter of the Indosite cannot be used
[0009] 2. The requirements for machine adjustment and operator proficiency are relatively high, and it is difficult for inexperienced operators to use. Compared with traditional alcohol fountain solution, the balance of ink and ink is not easy to control, and it is easy to appear water or water during use. The problem of dry water
It may be uncomfortable for users who are used to alcohol fountain solution
[0010] 3. The stability is not strong, it can be used in the initial stage, and the effect is difficult to meet the requirements after a day or two at least
[0011] 4. For some machines, too much foam in the existing alcohol-free fountain solution will also cause inconvenience in use

Method used

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  • Alcohol-free concentrated fountain solution and preparation method thereof
  • Alcohol-free concentrated fountain solution and preparation method thereof
  • Alcohol-free concentrated fountain solution and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A fountain solution concentrate composition for lithography comprises the following components (amounts are parts by weight):

[0038]

[0039] Weigh the above-mentioned raw materials in proportion, add water into the reaction kettle first, and then add solid raw materials in turn. The adding method is: the former raw material to be added is completely dissolved, and then the latter raw material is added. Then use the same method to add liquid raw materials sequentially. After adding all the raw materials, stir for 1 hour to make the finished product. Add water to the prepared dampening solution concentrate composition to dilute it into a 2-3% aqueous solution for direct use. The dampening solution is added to the water tank of the printing machine, and the printing can be started normally.

Embodiment 2

[0041] A fountain solution concentrate composition for lithography comprises the following components (amounts are parts by weight):

[0042]

[0043] Weigh the above-mentioned raw materials in proportion, add water into the reaction kettle first, and then add solid raw materials in turn. The adding method is: the former raw material to be added is completely dissolved, and then the latter raw material is added. Then use the same method to add liquid raw materials in sequence. After adding all the raw materials, stir for 1.5 hours to make the finished product. The prepared dampening solution concentrate composition is diluted with water to a 2-3% aqueous solution for direct use. The dampening solution is added to the water tank of the printing machine, and the printing can be started normally.

Embodiment 3

[0045] A fountain solution concentrate composition for lithography comprises the following components (amounts are parts by weight):

[0046]

[0047] Weigh the above-mentioned raw materials in proportion, add water into the reaction kettle first, and then add solid raw materials in turn. The adding method is: the former raw material to be added is completely dissolved, and then the latter raw material is added. Then use the same method to add liquid raw materials sequentially. After adding all the raw materials, stir for 2 hours to make the finished product. Add water to dilute the fountain solution concentrate composition to a 2-3% aqueous solution for direct use. The dampening solution is added to the water tank of the printing machine, and the printing can be started normally.

[0048] In order to verify the use effect of alcohol-free fountain solution of the present invention, a comparative test with traditional alcohol fountain solution has been carried out:

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Abstract

The invention provides an alcohol-free concentrated fountain solution and a preparation method thereof. The alcohol-free concentrated fountain solution is prepared from the following components based on 100 parts by weight: 0.5-5 parts of low-foam wetting agent, 8-20 parts of pH value regulator, 3-20 parts of printing plate protective agent, 5-10 parts of a water film regulator, 0.2-1.0 part of decontamination intensifier, 0.1-1.0 part of bactericide, 0.1-1.2 parts of defoamer and the balance of water. The concentrated fountain solution provided by the invention is environmentally-friendly, provides guarantee for the health of workers, and can improve the quality of the printing products.

Description

technical field [0001] The invention relates to a dampening solution for a lithographic printing machine, in particular to an alcohol-free dampening solution concentrate. Background technique [0002] The printing speed and quality of the lithographic offset printing machine have been greatly improved from the water reel machine to the alcohol machine, but the alcohol dampening has the following disadvantages: [0003] 1. Both alcohol and isopropanol have certain toxicity and are harmful to the human body. Long-term exposure will lead to chronic poisoning of the human respiratory system, liver and kidney, and endanger the health of operators. [0004] 2. Alcohol or isopropanol are highly volatile organic solvents. About 40% of them are wasted due to volatilization during use, which also causes pollution to the environment. It is precisely because of the extremely high volatility of alcohol and isopropanol Therefore, the amount of alcohol or isopropanol to be added must be l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41N3/08
Inventor 冯星枢刘伟峰
Owner 冯星枢
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