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Metallic effect printing ink with infrared characteristic

A metal effect, ink technology, applied in inks, household appliances, applications, etc., can solve the problems of reduced ink flicker, no reports or applications, weakening the public anti-counterfeiting properties of ink, etc., to achieve the effect of improving the difficulty of counterfeiting

Active Publication Date: 2013-02-20
CHINA BANKNOTE SECURITY PRINTING TECH RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is used to formulate metal effect ink with composite anti-counterfeiting effect that provides infrared features at the same time, such a high amount of dark infrared material will easily interfere with the display of the metal effect ink’s own anti-counterfeiting features, so that the ink’s flickering degree is significantly reduced. Using this ink Although the printed information or pattern increases the second-line anti-counterfeiting features, it weakens the unique public anti-counterfeiting properties of this type of ink
Therefore, the composite anti-counterfeiting inks with infrared absorbing materials that have been researched and used are mainly infrared / fluorescent inks, infrared / magnetic inks, etc., and the shiny and flickering characteristics of metallic effect inks (first-line anti-counterfeiting) and infrared absorbing inks The composite anti-counterfeiting ink combined with infrared features (second-line anti-counterfeiting) has not been reported or applied yet.

Method used

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  • Metallic effect printing ink with infrared characteristic
  • Metallic effect printing ink with infrared characteristic
  • Metallic effect printing ink with infrared characteristic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Example 1: Engraving gravure metallic effect ink

[0049] Ink formula (weight%):

[0050]

[0051]

[0052] The above-mentioned effect pigments include 30% effect pigments coated with glass as a substrate, 40% effect pigments coated with aluminum oxide as a substrate, and 30% effect pigments coated with mica as a substrate. The infrared regulator is antimony-doped tin oxide coated with mica.

[0053] The preparation process of the ink is as follows: first, the binder, nano-silica, wax and dodecylbenzenesulfonate are rolled into base oil; then 3,4,13,14-tetracarboximide bisperylene , infrared regulator, phthalocyanine green and the base oil are mixed and rolled to form a base ink; finally, the base oil, base ink, effect pigment and desiccant are fully mixed by high-speed stirring to form the ink.

[0054] The infrared absorbing material used in the ink is bisperylene tetracarboximide, the maximum absorption peak is located near 780nm, the covering power is 37%, t...

Embodiment 2

[0056] Example 2: UV screen metal effect ink

[0057] Ink formula (weight%):

[0058]

[0059]

[0060] The infrared regulator is mica-coated antimony-doped tin oxide. The infrared absorbing material used in this ink is 4,4',4"-tris(p-dibutyronitrileamino)triphenylamine hexafluoroantimonic acid, and the maximum absorption peak is located near 980nm. Hiding power is 28%, and the addition amount in ink is 2%, makes described screen printing ink according to the method similar to embodiment 1, and the infrared reflectance of ink is 28% now, and the flickering value of printed matter of ink is 4.1, It meets the needs of use, but the physical and chemical resistance of the ink prints, light fastness and solvent resistance are both reduced, it is recommended to be used in products or environments that have a short retention time, or are protected from light and organic solvents.

Embodiment 3

[0062] The ink components are the same as in Example 2, but the infrared absorbing material (4,4',4"-tris(p-dibutyronitrileamino)triphenylamine hexafluoroantimonic acid) used has been coated in advance, the method is as follows: 25g Dissolve urea in 60g of 37% formaldehyde solution, use triethanolamine to adjust pH=8.5, then heat to 75°C, and react for 1h under stirring. Add 0.5g of nonylphenol polyoxyethylene ether and 20g of 4,4',4"-tri( For p-dibutyronitrile amino)triphenylamine hexafluoroantimonic acid, stir vigorously for 5 minutes, use hydrochloric acid to adjust PH=3.5, heat to 60°C, react for 2 hours, then wash, filter and dry to obtain the infrared absorbing material modified by coating with urea-formaldehyde resin.

[0063] Compared with Example 2, the screen printing ink in this example has similar metallic color and infrared features, but after using the modified infrared absorbing material, the light fastness and solvent resistance of the ink printed product are si...

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Abstract

The invention relates to a metallic effect printing ink with infrared characteristic. According to the metallic effect printing ink with infrared characteristic, the infrared characteristic means that absorption characteristic is displayed within the near infrared spectrum. The printing ink comprises an infrared absorption material which is 1 to 15% of the total weight of the printing ink; and the reflectivity of the metallic effect printing ink is is less than 30% at the maximum absorption wavelength in a near infrared region. The metallic effect printing ink provided by the invention not only has the characteristics of metallic color and luster and flicker but also has the characteristic of infrared absorption; and an anti-counterfeit mark printed by the metallic effect printing ink shows public counterfeiting resisting means and professional counterfeiting resisting means. The invention also provides application of the metallic effect printing ink with the infrared characteristic in making of safety products with the anti-counterfeit mark by constituting suitable printing ink together with other printing inks.

Description

technical field [0001] The invention relates to a functional ink capable of providing specific identification information, in particular to a metallic effect ink with infrared characteristics, which belongs to the functional ink manufacturing and application technology. Background technique [0002] In the field of anti-counterfeiting technology, there is a recognized way of dividing the anti-counterfeiting level of security items: the security features that the public can recognize by their own conditions such as vision and touch without the aid of instruments belong to the public anti-counterfeiting technology, also known as first-line anti-counterfeiting technology, for example, the marking pattern is obvious The color and outline changes, the special markers displayed by the addition of specific markers (fibers), etc.; the security features that can be identified with the help of simple tools and instruments are called professional anti-counterfeiting technology, also kno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10C09D11/02C09D11/037C09D11/50
Inventor 周树荣吕建英武建国高瑞
Owner CHINA BANKNOTE SECURITY PRINTING TECH RES INST CO LTD
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