A fluorescent anti-counterfeiting ink for UV curing offset printing

An anti-counterfeiting ink and ultraviolet light technology, which is applied in the field of ultraviolet curing offset printing fluorescent anti-counterfeiting ink and its preparation, can solve the problems of no anti-counterfeiting discoloration, insufficient adhesion, insufficient color effect, etc., and achieve good fluorescent discoloration effect and improve adhesion. , the effect of low shrinkage

Active Publication Date: 2021-01-08
HUIZHOU PERFECT CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this UV gravure ink still has the disadvantages of insufficient adhesion and poor color effect, and has no anti-counterfeiting and discoloration effect

Method used

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  • A fluorescent anti-counterfeiting ink for UV curing offset printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] S1. Add 10.5 kg of propoxylated neopentyl glycol diacrylate, add 40 kg of EBECRYL811 polyester acrylate resin at a stirring speed of 800 rpm, then increase the rotating speed to 1600 rpm, and stir for 40 minutes to After dissolving completely, the semi-finished product is obtained after cooling down to normal temperature for subsequent use;

[0038] S2. Add 25 kg of colorless and reddish 365nm near-ultraviolet anti-counterfeiting fluorescent pigments, 15 kg of 8000 mesh talcum powder, 0.5 kg of silicone defoamer and 1 kg of silicone leveling agent to the semi-finished product and mix evenly at a stirring speed of 800 rpm / minute, stirring for 15 minutes; then increase the speed to 1600 rpm, stir for 40 minutes until the dispersion is uniform, the fineness is ≤ 10 μm, and the next step is performed after cooling to 2 room temperature;

[0039] S3. Reduce the rotating speed to 600 rpm, add 1 kg of TPO initiator and 7 kg of macromolecular photoinitiator 2-hydroxy-2methyl-...

Embodiment 2

[0041] S1. Add 15 kg of propoxylated neopentyl glycol diacrylate, add 50 kg of EBECRYL811 polyester acrylate resin at a stirring speed of 900 rpm, then increase the rotating speed to 1700 rpm, and stir for 30 minutes to After dissolving completely, the semi-finished product is obtained after cooling down to normal temperature for subsequent use;

[0042] S2. Add 19 kg of colorless and blue 254nm far ultraviolet anti-counterfeiting fluorescent pigment, 5 kg of 8000 mesh talcum powder, 0.5 kg of silicone defoamer and 0.5 kg of silicone leveling agent to the semi-finished product and mix evenly at a stirring speed of 900 RPM, stir for 10 minutes; then increase the speed to 1700 RPM, stir for 30 minutes until the dispersion is uniform, the fineness is ≤10μm, and then proceed to the next step after cooling down to room temperature;

[0043] S3. Reduce the rotating speed to 700 rpm, add 2 kg of TPO initiator and 8 kg of macromolecular photoinitiator 2-hydroxyl-2 methyl-1-(4-methylvi...

Embodiment 3

[0045] S1. Add 5 kg of propoxylated neopentyl glycol diacrylate, add 60 kg of EBECRYL811 polyester acrylate resin at a stirring speed of 1000 rpm, then increase the rotating speed to 1800 rpm, and stir for 20 minutes to After dissolving completely, the semi-finished product is obtained after cooling down to normal temperature for subsequent use;

[0046] S2. Add 15 kg of colorless and green infrared anti-counterfeiting fluorescent pigment, 6 kg of 8000-mesh talcum powder, 1 kg of silicone defoamer and 1 kg of silicone leveling agent to the semi-finished product and mix evenly at a stirring speed of 1000 rpm Minutes, stir for 5 minutes; then increase the speed to 1800 rpm, stir for 20 minutes until the dispersion is uniform, the fineness is ≤10μm, and the next step is performed after cooling to room temperature;

[0047] S3. Reduce the rotating speed to 800 rpm again, add 3 kilograms of TPO initiator and 9 kilograms of macromolecular photoinitiator 2-hydroxyl-2 methyl-1-(4-meth...

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PUM

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Abstract

The present invention discloses an ultraviolet light curing offset printing fluorescent anti-counterfeiting ink, which comprises, by weight, 40-60% of a polyester acrylate resin, 5-15% of a propoxylate neopentylene glycol diacrylate ester monomer, 15-25% of a luorescent anti-counterfeiting pigment, 5-15% of a filler, 1-2% of an auxiliary agent, and 8-12% of a photoinitiator. According to the present invention, when the prepared single-component ultraviolet light curing offset printing fluorescent anti-counterfeiting ink is used, no solvent exists, and no toxic gas is discharged, such that the advantages of environmental protection and no pollution are provided; and after the curing, different color patterns are displayed along with the irradiation with different anti-counterfeiting lamps, the coloring is good, the mobility is good, and the requirements of the anti-counterfeiting ink can be met.

Description

technical field [0001] The invention relates to the technical field of inks, in particular, the invention relates to a fluorescent anti-counterfeit ink for ultraviolet curing offset printing and its preparation method and application. Background technique [0002] Offset printing inks on the market are mainly solvent-based, and their components contain a large amount of organic solvents. During construction, a large amount of organic solvents will be volatilized and discharged into the air, causing pollution to the environment and not conducive to environmental protection, especially benzene-based solvents It is not conducive to the health of the operator. Patents have reported UV gravure inks, and patent CN101486857 discloses a UV curing gravure ink, which uses alkali-soluble acrylate resins and modified epoxy acrylate resins as the main resin, and photoinitiators, pigments, fillers, dilute The prepared UV gravure printing ink has short drying cycle, stable inking performa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/50C09D11/101C09D11/104C09D11/03
CPCC09D11/03C09D11/101C09D11/104C09D11/50
Inventor 官炼
Owner HUIZHOU PERFECT CHEM IND CO LTD
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