Preparation technique of cuprous-oxide-containing double-wavelength light-absorption water-based anti-counterfeiting ink additive

A technology of cuprous oxide and anti-counterfeiting ink, which can be used in inks, household utensils, applications, etc., and can solve the problem of 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 technique of cuprous-oxide-containing double-wavelength light-absorption water-based anti-counterfeiting ink additive
  • Preparation technique of cuprous-oxide-containing double-wavelength light-absorption water-based anti-counterfeiting ink additive
  • Preparation technique of cuprous-oxide-containing double-wavelength light-absorption water-based anti-counterfeiting ink additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0124] 1) Put 4g of cuprous 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-oxidized Cuprous 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-cuprous 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 and Montmorillonite with a particle size of 200-1000nm was reacted for 60 minutes to finally obtain a dual-wavelength light-absorbing anti-counterfeiting ink additive containing cuprous oxide; wherein, the added ethylene glycol accounted for 40% of the mass of the nano-cupro...

Embodiment 2

[0128] 1) Put 4g of cuprous 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 Use an ultrasonic cleaner to ultrasonically disperse the obtained mixed system for 120 minutes to obtain a nano-cuprous 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-cuprous 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 and Montmorillonite with a particle size of 200-1000nm was reacted for 60 minutes to finally obtain a dual-wavelength light-absorbing anti-counterfeiting ink additive containing cuprous oxide; whe...

Embodiment 3

[0132] 1) Put 4g of cuprous 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 mix the obtained The system was ultrasonically dispersed for 120 minutes to obtain a nano-cuprous 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-cuprous 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 and Montmorillonite with a particle size of 200-1000nm was reacted for 60 minutes to finally obtain a dual-wavelength light-absorbing anti-counterfeiting ink additive containing cu...

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Abstract

The invention provides a preparation technique of a cuprous-oxide-containing double-wavelength light-absorption water-based anti-counterfeiting ink additive, which comprises the following steps: uniformly dispersing nano cuprous oxide, deionized water and surfactant under ultrasonic to obtain a nano cuprous oxide solution; mixing a polysuberamide-doped polyethylenedioxythiophene solution with the solid content of 1.3-1.7% with deionized water, adding an anionic surfactant, and uniformly dispersing under ultrasonic to obtain a solution A; mixing the nano cuprous 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 alcohol solvent and powder with the particle size of 200-1000nm into the mixed solution B while stirring, and reacting for 40-60 minutes to finally obtain the cuprous-oxide-containing double-wavelength light-absorption water-based anti-counterfeiting ink additive. The anti-counterfeiting ink additive has absorption at 1000-1200nm infrared band and 300-340nm ultraviolet band, and can be used as a water-based anti-counterfeiting 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 cuprous 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 for a dual-wavelength light-absorbing water-based anti-c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/02C09D11/00
Inventor 杜经武吕博刘霞刘保健杨强高玉刚杨辉刁森森李爽郭家宏邓莉杨文婷
Owner SHAANXI UNIV OF SCI & TECH
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