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LED-UV (light-emitting diode-ultraviolet) magnetic anti-counterfeiting printing ink preparation method

An anti-counterfeiting ink and magnetic technology, applied in the field of printing ink, can solve the problems of high-speed printing, high VOC emission, slow drying speed, etc., and achieve the effect of improving drying efficiency, low VOC emission and improving lipophilicity

Active Publication Date: 2018-01-09
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main anti-counterfeiting inks are: photochromic inks, thermochromic inks, fluorescent inks and magnetic inks, etc. These existing magnetic inks use the traditional four major drying technologies, and the drying speed is slow and cannot be used for high-speed printing. VOC High emission, great environmental pollution, poor environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a method for preparing LED-UV magnetic anti-counterfeiting ink, which is specifically implemented according to the following steps:

[0040] Step 1: Choose ferric chloride and ferrous sulfate as raw materials, prepare ferroferric oxide nanoparticles through ammonia precipitation, and then use oleic acid coating and potassium permanganate oxidation to connect carboxyl groups on the surface of nano ferric oxide particles. Preparation of magnetic pigments with good dispersion properties.

[0041] Step 1.1: Convert the solid FeSO with a mass ratio of 27:14 4 ·7H 2 O and solid FeCl 3 ·6H 2 O dissolved in deionized water, solid FeSO 4 ·7H 2 O and solid FeCl 3 ·6H 2 The mass ratio of O to deionized water is 1:10, and then the mixed solution is heated to 80°C;

[0042] Step 1.2: Inject concentrated ammonia water with a mass concentration of 25% into the mixed solution heated in step 1.1. The volume ratio of the concentrated ammonia water to the deionized water...

Embodiment 2

[0050] This embodiment provides a method for preparing LED-UV magnetic anti-counterfeiting ink, which is specifically implemented according to the following steps:

[0051] Step 1: Choose ferric chloride and ferrous sulfate as raw materials, prepare ferroferric oxide nanoparticles through ammonia precipitation, and then use oleic acid coating and potassium permanganate oxidation to connect carboxyl groups on the surface of nano ferric oxide particles. Preparation of magnetic pigments with good dispersion properties.

[0052] Step 1.1: Convert the solid FeSO with a mass ratio of 27:14 4 ·7H 2 O and solid FeCl 3 ·6H 2 O dissolved in deionized water, solid FeSO 4 ·7H 2 O and solid FeCl 3 ·6H 2 The mass ratio of O to deionized water is 1:10, and then the mixed solution is heated to 80°C;

[0053] Step 1.2: Inject concentrated ammonia water with a mass concentration of 25% into the mixed solution heated in step 1.1. The volume ratio of the concentrated ammonia water to the deionized water...

Embodiment 3

[0061] This embodiment provides a method for preparing LED-UV magnetic anti-counterfeiting ink, which is specifically implemented according to the following steps:

[0062] The preparation method of LED-UV magnetic anti-counterfeiting ink of the present invention is specifically implemented according to the following steps:

[0063] Step 1: Choose ferric chloride and ferrous sulfate as raw materials, prepare ferroferric oxide nanoparticles through ammonia precipitation, and then use oleic acid coating and potassium permanganate oxidation to connect carboxyl groups on the surface of nano ferric oxide particles. Preparation of magnetic pigments with good dispersion properties.

[0064] Step 1.1: Convert the solid FeSO with a mass ratio of 27:14 4 ·7H 2 O and solid FeCl 3 ·6H 2 O dissolved in deionized water, solid FeSO 4 ·7H 2 O and solid FeCl 3 ·6H 2 The mass ratio of O to deionized water is 1:10, and then the mixed solution is heated to 80°C;

[0065] Step 1.2: Inject concentrated amm...

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PUM

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Abstract

The invention discloses an LED-UV (light-emitting diode-ultraviolet) magnetic anti-counterfeiting printing ink preparation method, which is specifically implemented by the following steps: 1, preparing a ferriferous oxide nanoparticle from raw materials of ferric chloride and ferrous sulfate by virtue of ammonia precipitation, and bonding carboxyl to the surface of the ferriferous oxide nanoparticle by virtue of oleic acid coating and potassium permanganate oxidation to prepare a magnetic pigment with high dispersibility; 2, uniformly mixing the magnetic pigment, a binder, a photoinitiator andan auxiliary to prepare the LED-UV magnetic anti-counterfeiting printing ink. According to the LED-UV magnetic anti-counterfeiting printing ink preparation method, a carboxylated ferriferous oxide material is adopted, so that the dispersibility in an organic binder is greatly improved; an LED-UV curing technology is adopted for a printing ink drying manner, so that the printing ink drying efficiency is high, the drying speed is high, and printing ink drying process is high in environment friendliness and low in VOC (volatile organic compound) emission and pollution.

Description

Technical field [0001] The invention belongs to the technical field of printing inks, and relates to a preparation method of LED-UV magnetic anti-counterfeiting ink. Background technique [0002] With the development of social economy, the anti-counterfeiting technology of commodities has attracted more and more attention. At present, anti-counterfeiting technology is mainly embodied in printing and packaging, chemical inks, materials and computer networks, and has been widely used in various fields. In order to prevent the interests of consumers and businesses from being harmed, chemical materials with strong exclusivity and good concealment are applied to the field of anti-counterfeiting, and various new and efficient anti-counterfeiting technologies are continuously researched and developed. This has become the world's anti-counterfeiting technology. development trend. The technical characteristics of using ink as an anti-counterfeiting material are simple implementation, go...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/037C09D11/101C09D11/107
Inventor 曹从军褚玉龙
Owner XIAN UNIV OF TECH
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