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Stearic acid soap paper coating lubricant

A technology of stearic acid soap and lubricant, which is applied in lubricating compositions, papermaking, textiles and papermaking, etc., can solve the problems of low stearic acid soap content, high production cost, poor stability, etc., and achieve stearate content High, low production cost, good stability

Active Publication Date: 2009-09-16
宁波汇臻新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the stearic acid soap lubricant of the prior art has the defects of low stearic acid soap content, high viscosity, and large emulsifier dosage, and also has poor stability, large dosage, and difficult dispersion during use.
[0004] Publication number is the application document of CN101126214A, wherein although the content of stearic acid soap is relatively high, there are still the defects of low emulsification efficiency of emulsifier, large amount of emulsifier, which leads to high production cost, and it is easy to form foam in the coating process so that Affects coating operations and paper quality

Method used

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  • Stearic acid soap paper coating lubricant
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In a 1000-liter shearing reactor, add water 500kg, calcium stearate 450kg, polyoxyethylene nonyl aryl ether (n=15) 10.5kg, polyoxyethylene nonyl aryl ether (n=4) Sodium sulfonate 10.5kg, calcium hydroxide 3.5kg, diethylene glycol 15kg and oleic acid 22kg, open agitator in the high-shear reactor, and the agitator rotating speed is 1200rpm, until the material in the above-mentioned high-shear kettle is stirred evenly, then The homogeneously mixed material is passed through a flow energy mill to make it homogenized, and the obtained product is a white dispersion liquid.

[0025] Polyoxyethylene nonylaryl ether (n=15) and polyoxyethylene nonylaryl ether (n=4) were purchased from Dow Chemical NP-15 and NP-4 products, in which polyoxyethylene nonylaryl ether was used Ether (n=4) prepares polyoxyethylene nonyl aryl ether (n=4) sodium sulfonate, and method is conventional sulfonation reaction, and preparation process is as follows: in reactor, add NP-4 (polyoxyethylene nonyl A...

Embodiment 2

[0029] In a 1000-liter shearing reactor, add water 450kg, calcium stearate 500kg, polyoxyethylene octyl aryl ether (n=15) 12kg, polyoxyethylene octyl aryl ether (n=3.5) sodium sulfonate 12kg, Calcium hydroxide 3.8kg, diethylene glycol 22kg, oleic acid 25kg, open the agitator in the high-shear reactor, the agitator rotating speed is 1200rpm, until the material is stirred evenly, it is homogenized through the flow energy mill, and the product obtained is White dispersion.

[0030] The product obtained in Example 2: a solid content of 55%, a viscosity of 110 mPa·s, a pH value of 11, and a particle size of 5 μm.

Embodiment 3

[0032] In a 1000-liter shearing kettle, add water 440kg, calcium stearate 550kg, polyoxyethylene nonyl aryl ether (n=15) 14kg, polyoxyethylene nonyl aryl ether (n=3.5) sulfonic acid Sodium 14kg, calcium hydroxide 3.8kg, glycerin 22kg, oleic acid 25kg, open the agitator in the high-shear reactor, the agitator rotating speed is 1200rpm, until the material is stirred evenly, it is homogenized through the flow energy mill, and the obtained product It is a white dispersion.

[0033] The product obtained in Example 3: a solid content of 57%, a viscosity of 150 mPa·s, a pH value of 11, and a particle size of 5 μm.

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Abstract

The invention discloses a stearic acid soap paper coating lubricant, which is composed of, based on weight percent, the following ingredients of: 44.5%-51.5% of the stearic acid soap, 2%-2.5% of an oleic acid, 2%-3% of an emulsifier, 0.3%-0.4% of a pH value regulator, 1%-2.2% of an antifreezing agent and 41%-50% of water. The stearic acid soap paper coating lubricant prepared by the invention has the viscosity of 50-150 MPa.s, the solid content of 50%-57% and the pH value of 9-12; compared with the present product, the inventive lubricant has the advantages of small particle diameter, low viscosity, high content of stearate, therefore, the invention is good in stability, high in emulsifying efficiency of the emulsifier, low in production cost, easy in being dispersed in the process of the use, and suitable for high-speed coating technology.

Description

technical field [0001] The invention relates to the technical field of paper coating lubricants, in particular to a stearic acid soap paper coating lubricant. Background technique [0002] Use lubricants in the coating to improve the smoothness and gloss of the coating layer, promote the fluidity and leveling of the coating, improve the printability of the coated paper, and prevent powder removal, cracking and peeling. So as to achieve the purpose of improving coating and paper quality. [0003] However, the stearic acid soap lubricant of the prior art has the defects of low stearic acid soap content, high viscosity, and large emulsifier dosage, and also has poor stability, high consumption, and difficulty in dispersing in use. [0004] Publication number is the application document of CN101126214A, wherein although the content of stearic acid soap is relatively high, there are still the defects of low emulsification efficiency of emulsifier, large amount of emulsifier, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/14C10M169/04
Inventor 王得道
Owner 宁波汇臻新材料有限公司
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