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Cadmium sulfide-containing two-wavelength light absorption aqueous anti-counterfeiting ink additive preparation process

A technology of anti-counterfeiting ink and preparation process, which can be applied to inks, household utensils, applications, etc., and can solve the problem of low anti-counterfeiting ability

Inactive Publication Date: 2014-07-02
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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  • Cadmium sulfide-containing two-wavelength light absorption aqueous anti-counterfeiting ink additive preparation process
  • Cadmium sulfide-containing two-wavelength light absorption aqueous anti-counterfeiting ink additive preparation process
  • Cadmium sulfide-containing two-wavelength light absorption aqueous anti-counterfeiting ink additive preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0124] 1) Put 4g of cadmium sulfide 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-cadmium sulfide 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-cadmium sulfide 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 and particles to the mixed solution B under high-speed stirring diameter is 200-1000nm montmorillonite, reacted for 60 minutes, and finally obtained a dual-wavelength light-absorbing anti-counterfeiting ink additive containing cadmium sulfide; wherein, the added ethylene ...

Embodiment 2

[0128] 1) Put 4g of cadmium sulfide 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 use it at room temperature Ultrasonic cleaner ultrasonically disperses the obtained mixed system for 120 minutes to obtain nano-cadmium sulfide 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-cadmium sulfide 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 and particles to the mixed solution B under high-speed stirring diameter is 200-1000nm montmorillonite, reacted for 60 minutes, and finally obtained a dual-wavelength light-a...

Embodiment 3

[0132] 1) Put 4g of cadmium sulfide 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 shake the obtained mixed system Ultrasonic dispersion for 120 minutes to obtain nano-cadmium sulfide 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-cadmium sulfide 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 and particles to the mixed solution B under high-speed stirring diameter is 200-1000nm montmorillonite, reacted for 60 minutes, and finally obtained a dual-wavelength light-absorb...

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Abstract

The present invention provides a cadmium sulfide-containing two-wavelength light absorption aqueous anti-counterfeiting ink additive preparation process. The preparation process comprises: carrying out uniform ultrasonic dispersion on nanometer cadmium sulfide, deionized water and a surfactant to obtain a nanometer cadmium sulfide solution; mixing a polystyrene sulfonic acid doped polyethylenedioxythiophene solution with a solid content of 1.3-1.7% and deionized water, adding an anion surfactant, and carrying out uniform ultrasonic dispersion to obtain a solution A; mixing the nanometer cadmium sulfide solution and the solution A to obtain a mixing solution B; and heating the mixing solution B to a temperature of 40-70 DEG C, adding an alcohol solvent and powder with a particle size of 200-1000 nm to the mixing solution B under stirring, and carrying out a reaction for 40-60 min to obtain the cadmium sulfide-containing two-wavelength light absorption aqueous anti-counterfeiting ink additive, wherein the cadmium sulfide-containing two-wavelength light absorption aqueous anti-counterfeiting ink additive has absorption at an infrared wave band of 1000-1200 nm and an ultraviolet wave band of 280-330 nm, and can be adopted as an aqueous anti-counterfeiting ink additive.

Description

technical field [0001] The invention relates to a preparation process of an anti-counterfeiting ink additive, in particular to a preparation process of a dual-wavelength light-absorbing water-based anti-counterfeiting ink additive containing cadmium sulfide. 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/03C09D11/50
Inventor 刘保健杨强李仲谨刘建春李少华高玉刚杨辉吴朵朵刁森森李爽江勇贾春茂
Owner SHAANXI UNIV OF SCI & TECH
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