Preparation method of high-temperature color retention printing ink

A printing ink and color retention technology, applied in the field of printing ink preparation, can solve the problems that high temperature resistant ink is difficult to maintain high temperature thermal stability, difficult to bake at 200°C, and high cost of silk screen printing process, and achieves improved physical and mechanical strength, strong Effects of mechanical strength and low thermal conductivity

Inactive Publication Date: 2017-05-31
重庆伟恒包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing high-temperature-resistant inks based on inorganic glass are difficult to maintain high-temperature thermal stability, while having good physical and mechanical properties and chemical reagent corrosion resistance.
For example, some high-temperature resistant inks have good heat resistance an...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method of the printing ink capable of maintaining color at high temperature comprises the following steps:

[0026]1) Take an appropriate amount of polyester-modified methylphenyl silicone resin, titanium dioxide, barium sulfate, silicon dioxide and glass powder and put them into a fine mill, grind and disperse for 30 minutes at a speed of 2000~2500r / min, and obtain primary products for later use ;

[0027] 2) Add an appropriate amount of octylphenol polyoxyethylene ether, polytetrafluoroethylene wax, polyether modified siloxane and silicone defoamer to the primary product obtained in step 1), at a speed of 2000~2500r / min Grind and disperse for 60 minutes to obtain a secondary product, which is set aside;

[0028] 3) Add an appropriate amount of hexamethoxymethylmelamine resin to the secondary product obtained in step 2), grind and disperse for 15 minutes at a speed of 800~1000r / min, filter the material through a 200-mesh filter, and obtain the ink main...

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PUM

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Abstract

The invention discloses a preparation method of high-temperature color retention printing ink, which comprises the following procedures of: 1) adding an appropriate amount of polyester modification methoxyphenyl silicon resin, barium sulfate and the like into a refiner and performing grinding and dispersion to form a primary product, 2) adding octaphenyl polyoxyethyiene, polytetrafluoroethylene wax, polyether modified siloxane and an organosilicon defoaming agent into the primary product and performing grinding and dispersion to form a secondary product, 3) adding hexamethoxy methyl melamine resin into the secondary product and performing grinding, dispersion, filtration and discharging to form an ink main agent, and 4) adding an appropriate amount of dimethylbenzene and cyclohexanone into the ink main agent and performing stirring to form the high-temperature color retention printing ink. The ink prepared by the method has high temperature resistance and good printability and paint film performances. With the adoption of barium sulfate, silicon dioxide and low melting point glass powder as filling, the filming heat resistance of the ink is improved; the rheological and thixotropic properties of the ink are adjusted; and the physical mechanical strength of a film layer is improved.

Description

technical field [0001] The invention relates to the technical field of inks, in particular to a method for preparing printing inks capable of maintaining color at high temperatures. Background technique [0002] The intelligentization of electronic products is the development trend of the times. With the wide application of touch screens in smart phones, tablet computers and other fields, the touch screen industry has developed rapidly. The integrated capacitive touch screen (OGS) can meet the ultra-thin requirements of intelligent terminals of electronic products to the greatest extent, and is an inevitable choice for high-end brand terminals with touch screens in the future. The OGS touch screen is coated with ITO conductive film on the ink film layer. Since the ITO coating process needs to be completed at a high temperature of 280 ° C ~ 300 ° C, the touch screen ink must have excellent high temperature resistance. [0003] High temperature resistant touch screen ink is ...

Claims

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Application Information

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IPC IPC(8): C09D11/102C09D11/037C09D11/033C09D11/03
Inventor 李进
Owner 重庆伟恒包装有限公司
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