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Lubricating agent and paint made by using same

A technology for lubricants and coatings, applied in pigmented coatings, fiber raw material processing, textiles and papermaking, etc., to achieve the effect of improving smoothness, good stability, and improving quality

Active Publication Date: 2014-01-22
GOLD EAST PAPER JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing lubricants cannot meet these requirements

Method used

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  • Lubricating agent and paint made by using same
  • Lubricating agent and paint made by using same
  • Lubricating agent and paint made by using same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] The preparation method of this lubricant comprises the steps:

[0018] Take stabilizer, polyethylene glycol, viscosity modifier, pH value regulator and bactericide by weighing respectively by above-mentioned parts by weight;

[0019] Add stabilizer, polyethylene glycol, viscosity regulator, pH value regulator and bactericide into water, keep the temperature of the solution system below 80°C and keep stirring to dissolve and disperse the substances evenly.

[0020] The above-mentioned stabilizer, polyethylene glycol, viscosity regulator, pH value regulator and bactericide can be added to the water in a certain order, or they can be added to the water together.

[0021] A coating using the above-mentioned lubricant, the absolute dry mass of the lubricant added is 0.2%-0.8% of the absolute dry mass of the coating, which is within the conventional additive content range of the lubricant.

[0022] The lubricant of the present invention contains polyethylene glycol with good...

Embodiment 1

[0025] Add 100g of water to the flask, raise the temperature to 70°C, add a stabilizer (2.0g formamide + 3.5g triglyceride), stir evenly, add 106g polyethylene glycol 4000, and stir at a low speed at a constant temperature of 80°C until polyethylene glycol The diol is completely dissolved, adding a viscosity modifier (sodium polyacrylate 0.5g), adding a bactericide (0.2g tetrachloroisophthalocyanine), adjusting the pH value to 7.5 with sodium bicarbonate, cooling after stirring, and obtaining the obtained Lubricant mentioned above.

[0026] The Brookfield viscosity (20° C.) of the lubricant prepared in this embodiment is 171 cps, and the solid content is 51.6%.

Embodiment 2

[0028] Add 100g of water to the flask, heat up to 80°C, add a stabilizer (1.5g citric acid + 2.5g triglyceride), stir well, add 94g polyethylene glycol 4000, 7.2g polyethylene glycol 6000, at 65°C Stir at a low speed at a constant temperature until the polyethylene glycol is completely dissolved, add a viscosity modifier (sodium hexametaphosphate 0.5g), add a bactericide (o-chloro-m-cresol 0.2g), adjust the pH value to 7.0 with sodium bicarbonate, and stir After being uniform, the temperature is lowered to obtain the lubricant.

[0029] The Brookfield viscosity (20° C.) of the lubricant prepared in this example was 167 cps, and the solid content was 52.1%.

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Abstract

The invention provides a lubricating agent used in the field of papermaking. The lubricating agent contains the following components in parts by weight: 40-65 parts of polyethylene glycol, 1-5 parts of stabilizer and 40-55 parts of water, wherein the polyethylene glycol contains at least one of polyethylene glycol 4000, polyethylene glycol 6000 and polyethylene glycol 8000, and the mass ratio of the sum of masses of polyethylene glycol 6000 and polyethylene glycol 8000 to the mass of polyethylene glycol 4000 is (0-10):(40-55). The invention also provides a paint made by using the lubricating agent. The lubricating agent is high in solid content, uniform in dispersion, good in stability and good in liquidity.

Description

technical field [0001] The invention relates to a lubricant used in the field of papermaking and a coating prepared by using the lubricant. Background technique [0002] Lubricants used in papermaking coatings can reduce the friction coefficient of the coating, improve the rheology of the coating, increase the plasticity of the dry coating surface, thereby improving the smoothness of the coating and the gloss of the finished paper, and reducing lint during calendering and printing Powder tendency, to prevent sticking rolls, cracks and other phenomena during the calendering process. With the rapid development of coating technology, higher requirements are put forward for coating lubricants, which are required to have high solid content (the current lubricant solid content is usually not higher than 45%), uniform dispersion and good stability , Good mobility. However, existing lubricants cannot meet these requirements. Contents of the invention [0003] In view of this, i...

Claims

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Application Information

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IPC IPC(8): D21H21/14D21H19/60
Inventor 王仁荣张明吴勇许立兵刘春
Owner GOLD EAST PAPER JIANGSU
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