A kind of preparation method of led-uv magnetic anti-counterfeiting ink

An anti-counterfeiting ink and magnetic technology, applied in the field of printing ink, can solve the problems of inability to apply high-speed printing, slow drying speed, and high VOC emission, and achieve the effects of improved drying efficiency, improved lipophilicity, and low VOC emission.

Active Publication Date: 2020-12-18
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: Select ferric chloride and ferrous sulfate as raw materials, prepare ferric oxide nanoparticles by ammonia precipitation, and then use oleic acid coating and potassium permanganate oxidation to connect carboxyl groups on the surface of nano ferric oxide particles. Prepare magnetic pigments with good dispersibility.

[0041] Step 1.1: Mix 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 of O and the mass ratio of deionized water are 1:10, and then the mixed solution is heated to 80°C;

[0042]Step 1.2: inject mass concentration into the mixed solution heated in step 1.1 to be 25% concentrated ammonia water, the volume ratio of the concentrated ammonia water to the deionized water in step...

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: Select ferric chloride and ferrous sulfate as raw materials, prepare ferric oxide nanoparticles by ammonia precipitation, and then use oleic acid coating and potassium permanganate oxidation to connect carboxyl groups on the surface of nano ferric oxide particles, Prepare magnetic pigments with good dispersibility.

[0052] Step 1.1: Mix 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 of O and the mass ratio of deionized water are 1:10, and then the mixed solution is heated to 80°C;

[0053] Step 1.2: inject mass concentration into the mixed solution heated in step 1.1 to be 25% concentrated ammonia water, the volume ratio of the concentrated ammonia water to the deionized water in ste...

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] A kind of LED-UV magnetic anti-counterfeit ink preparation method of the present invention, specifically implement according to the following steps:

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

[0064] Step 1.1: Mix 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 of O and the mass ratio of deionized water are 1:10, and then the mixed solution is heated to 80°C;

[0065] Step 1.2: inject mass concentration in...

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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 ink, 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 ink, materials and computer network, etc., and has been widely used in various fields. In order not to damage the interests of consumers and merchants, 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, which has become the world's leading anti-counterfeiting technology. development trend. The technical characteristics of using ink as an anti-counterfeiting material are simple implementation, g...

Claims

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Application Information

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