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Ultraviolet color changing paired engraving intaglio printing ink and use method thereof

A gravure printing ink and ultraviolet technology, applied in the direction of ink, application, printing, etc., can solve the problems that the anti-counterfeiting pattern cannot meet the anti-counterfeiting requirements, the ink color cannot be changed, and the effectiveness of anti-counterfeiting is low, so as to improve the anti-counterfeiting level of the public, High anti-counterfeiting effect and strong anti-counterfeiting function

Inactive Publication Date: 2009-07-08
CHINA BANKNOTE PRINTING & MINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But the current UV fluorescent ink can only be applied to offset printing and screen printing, and the anti-counterfeiting means of offset printing and screen printing are limited, the technical threshold for counterfeiting is low, and the effectiveness of anti-counterfeiting is low
Moreover, the above-mentioned colorless fluorescent ink cannot realize the color transformation of the ink under two different conditions of visible light and ultraviolet light, and the anti-counterfeiting pattern printed by it cannot meet higher anti-counterfeiting requirements

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0111] The preparation method of this printing ink is as follows:

[0112] 1. Add alkyd resin oil, high acid value phenolic resin oil, pure phenolic resin oil, transparent calcium carbonate, surfactant (such as dodecylbenzene sulfonate, or other commonly used surface Activator) and polyethylene wax are accurately weighed, mixed evenly and rolled three times with a three-roll ink mill to make base ink. The rolling temperature is 35-38°C, and the rolling pressure is 4.0-5.0 MPa. The fineness of the base ink is controlled at 10-15 microns;

[0113] 2. According to the dosage of the formula, accurately weigh the ultraviolet phosphor, base ink and other auxiliary materials remaining in the above components, put them into the vacuum stirring tank and stir for 30-45 minutes, and make the ultraviolet color-changing engraving gravure ink for printing. The vacuum degree of the vacuum stirred tank is controlled at 0.098-0.1 MPa, the stirring temperature is 35-40° C., and the stirring s...

Embodiment 1

[0117] As one of the embodiments of the present invention, the weight percent of the ink component is:

[0118] UV Phosphor 16%

[0119] Alkyd Oil 15%

[0120] High acid value phenolic resin oil 21%

[0121] Pure Phenolic Oil 10%

[0122] Transparent Calcium Carbonate 20%

[0123] Surfactant 6%

[0124] Polyethylene Wax 8%

[0125] Mineral oil 3.5%

[0126] Desiccant 0.5%

Embodiment 2

[0128] As one of the embodiments of the present invention, the weight percent of the ink component is:

[0129] UV Phosphor 17%

[0130] Alkyd Oil 14%

[0131] High acid value phenolic resin oil 22%

[0132] Pure Phenolic Oil 9%

[0133] Transparent Calcium Carbonate 19%

[0134] Surfactant 7%

[0135] Polyethylene wax 7.7%

[0136] Mineral oil 4%

[0137] Desiccant 0.3%

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PUM

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Abstract

The invention discloses ultraviolet chromatic paired engraving gravure ink, relates to ink for anti-counterfeiting printing, and aims to provide ultraviolet fluorescent ink suitable for gravure. The ink comprises the following components in percentage by weight: 15 to 25 percent of ultraviolet fluorescent powder, 10 to 15 percent of alkyd resin oil, 20 to 25 percent of phenolic resin oil of high acid value, 8 to 10 percent of pure phenolic resin oil, 15 to 20 percent of transparent calcium carbonate, 5 to 7 percent of surfactant, 6 to 8 percent of polyethylene wax, 2 to 4 percent of mineral oil, and 0.3 to 0.5 percent of drying agent. The anti-counterfeiting patterns printed by the gravure ink have the anti-counterfeiting characteristics of gravure hand feel, fine patterns, micro characters and the like of engraving gravure printing, have peculiar ultraviolet chromatic effect, have strong popular anti-counterfeiting function, are difficult to fabricate and easy to popularly identify, can improve the popular anti-counterfeiting function of valuable papers such as money and the like, and are suitable for anti-counterfeiting printing of various valuable papers, licenses and marks.

Description

technical field [0001] The invention relates to an ink for anti-counterfeiting printing, in particular to an ink for engraving and gravure printing. Background technique [0002] At present, the most widely used technology of ultraviolet fluorescent ink is to use colorless fluorescent ink to print. The printed pattern is hidden under visible light and clearly visible under ultraviolet light. This technology is low in cost and easy for the public to identify. [0003] But the current ultraviolet fluorescent ink can only be applied to offset printing and screen printing, and the anti-counterfeiting means of offset printing and screen printing are limited, the technical threshold for counterfeiting is low, and the effectiveness of anti-counterfeiting is low. Moreover, the above-mentioned colorless fluorescent ink cannot realize the color transformation of the ink under two different conditions of visible light and ultraviolet light, and the anti-counterfeiting pattern printed b...

Claims

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Application Information

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IPC IPC(8): C09D11/10B41M3/14C09D11/103C09D11/105C09D11/50
Inventor 房晓龙潘东
Owner CHINA BANKNOTE PRINTING & MINTING
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