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Alcohol-free fountain solution and preparation method thereof

A fountain solution and alcohol-free technology, which is applied in the field of alcohol-free fountain solution and its preparation, can solve the problems of insufficient dampening ability, flammability and explosion, poor wetting performance of fountain solution, etc., and achieve printing efficiency and quality Improve and reduce VOC emissions, not easy to spoil and deteriorate

Inactive Publication Date: 2017-09-29
常州文诺纺织品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention: the currently commonly used fountain solution is alcohol fountain solution, which has the risk of volatile organic compound (VOC) emission, flammability and explosion, and at the same time, the dampening solution has poor wetting performance, and the dampening solution Insufficient capacity, the non-graphic part is easy to dry, and the ink is easy to emulsify after use, which will have a negative impact on the drying of the ink. An alcohol-free fountain solution and its preparation method are provided.

Method used

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  • Alcohol-free fountain solution and preparation method thereof

Examples

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Effect test

example 1

[0024] Take 8g of gelatin, 10g of methylcellulose, and 5g of polyethylene glycol, add them into 1L of deionized water, and stir at 300r / min for 20min to obtain a colloidal solution, then take 80g of cornstarch, add them to 160mL of ethylene glycol, and Min stirred for 15 minutes, then added 5 mL of sulfuric acid solution with a mass fraction of 98%, continued to stir for 20 minutes, added 80 g of n-dodecyl alcohol, 1.8 g of p-toluenesulfonic acid, and heated to 110 ° C, stirred for 4 h, then cooled to 70 ° C, And let it stand for 2 hours, then adjust the pH of the mixed solution to 8.0 with a mass fraction of 3% sodium hydroxide solution, and then distill under reduced pressure to obtain starch-based dodecyl glucoside. Take 10g sodium lauryl sulfate, 300g cetyl alcohol , 500g of 1,2-propanediol, stirred at 300r / min for 15min, then added 0.8g of sodium chloride, 15g of starch-based dodecyl glucoside, 1g of Casson fungicidal preservative DL104, 1g of antifoaming agent BYK-019, at...

example 2

[0026] Take 9g of gelatin, 11g of methylcellulose, and 7g of polyethylene glycol, add them to 1L of deionized water, and stir at 350r / min for 25min to obtain a colloidal solution, then take 90g of konjac starch, add it to 170mL of ethylene glycol, and min and stirred for 18 minutes, then added 5 mL of sulfuric acid solution with a mass fraction of 98%, and continued to stir for 25 minutes, then added 90 g of n-dodecyl alcohol and 1.9 g of p-toluenesulfonic acid, and heated to 115 ° C, stirred for 4 h, then cooled to 75 ° C, And let it stand for 2 hours, then use 3% sodium hydroxide solution to adjust the pH of the mixed solution to 8.3, then distill under reduced pressure to obtain starch-based dodecyl glucoside, take 11g sodium lauryl sulfate, 350g cetyl alcohol , 550g of 1,2-propanediol, stirred at 400r / min for 18min, then added 1.3g of sodium chloride, 18g of starch-based dodecyl glucoside, 2g of Kasson antiseptic preservative DL104, 2g of antifoaming agent BYK-019, at 1000r...

example 3

[0028]Take 10g of gelatin, 12g of methylcellulose, and 8g of polyethylene glycol, add them into 2L of deionized water, and stir at 400r / min for 30min to obtain a colloidal solution, then take 100g of plant starch, add it to 180mL of ethylene glycol, and min and stirred for 20 min, then added 6 mL of sulfuric acid solution with a mass fraction of 98%, and continued to stir for 30 min, then added 100 g of n-dodecyl alcohol and 2.0 g of p-toluenesulfonic acid, and heated to 120 ° C, stirred for 5 h, then cooled to 80 ° C, And let it stand for 3 hours, and then adjust the pH of the mixed solution to 8.5 with a mass fraction of 3% sodium hydroxide solution, and then distill under reduced pressure to obtain starch-based dodecyl glucoside, take 12g sodium lauryl sulfate, 400g cetyl alcohol , 600g of 1,2-propanediol, stirred at 500r / min for 20min, then added 1.8g of sodium chloride, 20g of starch-based dodecyl glucoside, 3g of Casson fungicidal preservative DL104, 3g of defoamer BYK-01...

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Abstract

The invention discloses an alcohol-free fountain solution and a preparation method thereof, belonging to the technical field of offset printing. In the present invention, gelatin, methylcellulose, polyethylene glycol and deionized water are stirred to obtain a colloidal solution, and then plant starch and ethylene glycol are stirred, then sulfuric acid solution, p-toluenesulfonic acid, etc. are added for heating reaction, and then hydrogenated Sodium solution adjusts the pH and distills under reduced pressure to obtain starch-based dodecyl glucoside. After stirring cetyl alcohol, 1,2-propylene glycol, etc., add starch-based dodecyl glucoside, preservatives, defoamers, etc. after stirring Mix in the colloidal solution to get a mixed solution, and finally stir disodium hydrogen phosphate, citric acid, deionized water, etc. and add them to the mixed solution to stir to obtain an alcohol-free fountain solution. The dampening ability is excellent. At the same time, the emulsification rate of the ink after the fountain solution is used is low, which does not affect the drying time of the ink. The fountain solution does not add alcohol, which can reduce the emission of volatile organic compounds and avoid the risk of alcohol being flammable and explosive.

Description

technical field [0001] The invention discloses an alcohol-free fountain solution and a preparation method thereof, belonging to the technical field of offset printing. Background technique [0002] Currently, offset printing still dominates China's printing industry. Offset printing is to transfer the ink to the rubber roller through the printing plate, and then transfer it to the substrate (such as paper, etc.) to achieve printing. Unlike letterpress printing and gravure printing, the printing plate directly transfers the ink to the substrate, but transfers it through rubber rollers, so it is called offset printing. Offset printing is the main form of lithographic printing. It uses the principle of "oil and water repelling each other" to form graphics, text and blank parts on the same flat printing plate. The "water" here is the fountain solution. The vast majority of offset printing equipment requires the use of fountain solution, which is an indispensable material in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41N3/08
CPCB41N3/08
Inventor 蒋文明王之霖潘宏梅
Owner 常州文诺纺织品有限公司
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