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Preparation process of ferric oxide containing double-wavelength light absorption water-based anti-forgery ink additive

A technology of ferric oxide and nano ferric oxide, which can be used in inks, household appliances, applications, etc., can solve problems such as low anti-counterfeiting ability

Inactive Publication Date: 2013-05-22
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, optical anti-counterfeiting inks in securities printing are mainly ultraviolet anti-counterfeiting inks, which are widely used in the market, but the problem is that their anti-counterfeiting capabilities are low and easy to be imitated; in order to meet the anti-counterfeiting needs of the market, it is urgent to develop new anti-counterfeiting technology

Method used

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  • Preparation process of ferric oxide containing double-wavelength light absorption water-based anti-forgery ink additive
  • Preparation process of ferric oxide containing double-wavelength light absorption water-based anti-forgery ink additive
  • Preparation process of ferric oxide containing double-wavelength light absorption water-based anti-forgery ink additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0124] 1) Put 4g of ferric oxide with a particle size of 80-200nm in 100g of deionized water, then add 0.30g of Tween 60, and then ultrasonically disperse the resulting mixed system at room temperature for 120min to obtain nano Ferric oxide solution;

[0125] 2) Mix 10g of polystyrenesulfonic acid-doped polyethylenedioxythiophene solution with a solid content of 1.3-1.7% and 10g of deionized water, then add 0.02g of sodium dodecylsulfonate, and then Use ultrasonic dispersion at 20°C for 80 minutes to obtain solution A;

[0126] 3) Mix the nano-ferric oxide solution and solution A at a mass ratio of 1:1 to obtain a mixed solution B; then heat the mixed solution B to 40°C, and then add ethylene glycol to the mixed solution B under high-speed stirring And montmorillonite with a particle size of 200-1000nm, reacted for 60 minutes, and finally obtained a dual-wavelength light-absorbing anti-counterfeiting ink additive containing ferric oxide; wherein, the added ethylene glycol acc...

Embodiment 2

[0128] 1) Put 4g of ferric oxide with a particle size of 80-200nm in 100g of deionized water, then add 0.30g of polyoxyethylene anhydrous xylitol monostearate and glycerol monopalmitate, and then Ultrasonic disperse the obtained mixed system for 120min by using an ultrasonic cleaner to obtain a nanometer ferric oxide solution;

[0129] 2) Mix 10g of polystyrenesulfonic acid-doped polyethylenedioxythiophene solution with a solid content of 1.3-1.7% and 10g of deionized water, then add 0.02g of sodium dodecylsulfonate, and then Solution A was obtained by ultrasonic dispersion at 20°C for 60 minutes;

[0130] 3) Mix the nano-ferric oxide solution and solution A at a mass ratio of 1:1 to obtain a mixed solution B; then heat the mixed solution B to 40°C, and then add ethylene glycol to the mixed solution B under high-speed stirring And montmorillonite with a particle size of 200-1000nm, reacted for 60 minutes, and finally obtained a dual-wavelength light-absorbing anti-counterfeit...

Embodiment 3

[0132] 1) Put 4g of ferric oxide with a particle size of 80-200nm in 100g of deionized water, then add 0.30g of lactic acid glycerol monofatty acid ester and lactic acid glyceryl diglyceride, and use ultrasonic waves at room temperature to obtain The mixed system was ultrasonically dispersed for 120 minutes to obtain a nanometer ferric oxide solution;

[0133] 2) Mix 10g of polystyrenesulfonic acid-doped polyethylenedioxythiophene solution with a solid content of 1.3-1.7% and 10g of deionized water, add 0.02g of sodium dodecylsulfonate, and then Solution A was obtained by ultrasonic dispersion at 20°C for 40 minutes;

[0134]3) Mix the nano-ferric oxide solution and solution A at a mass ratio of 1:1 to obtain a mixed solution B; then heat the mixed solution B to 40°C, and then add ethylene glycol to the mixed solution B under high-speed stirring And montmorillonite with a particle size of 200-1000nm, reacted for 60 minutes, and finally obtained a dual-wavelength light-absorbi...

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Abstract

The invention provides a preparation process of a ferric oxide containing double-wavelength light absorption water-based anti-forgery ink additive. The preparation process comprises the following steps of: ultrasonically dispersing nanometer ferric oxide, de-ionized water, and a surfactant uniformly to obtain a nanometer ferric oxide solution; mixing a solution of polystyrolsulfon acid doped polyethylenedioxythiophene with the solid content of 1.3-1.7% with de-ionized water, adding a negative ion surfactant into the resulting mixed solution, and ultrasonically dispersing the resulting solution uniformly to obtain a solution A; mixing the ferric oxide solution with the solution A to obtain a mixed solution B; and heating the mixed solution B to 40-70 DEG C, adding an alcoholic solvent and powder with powder diameter of 200-1000nm into the mixed solution B under a stirring condition, and finally obtaining the ferric oxide containing double-wavelength light absorption water-based anti-forgery ink additive after reacting for 40-60 minutes. The anti-forgery ink additive has light absorption effect within a 1000-1200nm infrared band and a 300-380nm ultraviolet band, and can be used as the water-based anti-forgery ink additive.

Description

technical field [0001] The invention relates to a preparation process of an anti-counterfeit ink additive, in particular to a preparation process of a dual-wavelength light-absorbing water-based anti-counterfeit ink additive containing ferric oxide. Background technique [0002] Anti-counterfeiting inks are widely used in the printing industry, and optical anti-counterfeiting inks are an important part of anti-counterfeiting inks. At present, optical anti-counterfeiting inks in securities printing are mainly ultraviolet anti-counterfeiting inks, which are widely used in the market, but the problem is that their anti-counterfeiting capabilities are low and easy to be imitated; in order to meet the anti-counterfeiting needs of the market, it is urgent to develop new anti-counterfeiting technology. Contents of the invention [0003] Aiming at the above deficiencies, the present invention provides a preparation process of a dual-wavelength light-absorbing water-based anti-cou...

Claims

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Application Information

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IPC IPC(8): C09D11/02C09D11/50
Inventor 李磊王小芳魏晓红刘保健杨强高玉刚杨辉邓莉吴朵朵李爽杨文婷胡苗苗
Owner SHAANXI UNIV OF SCI & TECH
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