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Carving gravure ink and preparation method and safety product thereof

A kind of gravure printing ink and printing ink technology, which is applied in the direction of ink, household utensils, applications, etc., can solve the problems that are difficult to achieve, and achieve the effects of good transparency, improved layer expressiveness, and improved anti-counterfeiting level

Active Publication Date: 2014-12-24
CHINA BANKNOTE SECURITY PRINTING TECH RES INST CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of nano-scale ultrafine fillers has been reported to improve the performance of inks and the development of special inks, but there is no report on the selection of colorants and pigments. Studies have found that even if the particle size of colorants reaches 1 μm, the current ink system is adopted. After the ink rolling process, it is also difficult to reach below 5 μm, the main reason is that other components in the ink also play an important role in the wetting and dispersion of the colorant

Method used

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  • Carving gravure ink and preparation method and safety product thereof
  • Carving gravure ink and preparation method and safety product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] According to the formula in Table 1, after weighing, mixing and stirring to implement pre-dispersion, roll twice on a three-roll ink pad to make base oil. Among them, the binder composition includes isocyanate modified alkyd resin, anhydride modified alkyd resin, isobenzene alkyd resin (pure alkyd resin), vegetable oil modified phenolic resin oil and rosin modified phenolic resin oil, (Note : The preparation method of isocyanate modified alkyd resin and acid anhydride modified alkyd resin refers to patent CN101362871, the same below), the surfactant is nonylphenol polyoxyethylene ether, and the filler is ultrafine particle size (D50) of 1.5 μm Ground calcium carbonate.

[0046] Table 1 base oil 1 formula

[0047] components

Dosage (%)

Anhydride modified alkyd resin

22

Isocyanate modified alkyd resin

20

Vegetable oil modified phenolic resin oil

11

Rosin modified phenolic resin oil

3

Resin

2

polye...

Embodiment 2

[0071] Base oil 2, colorant and saponified rosin-modified phenolic resin are weighed, mixed and stirred according to the formula in Table 7, and then rolled on a three-roll ink mill to form a base ink with a fineness of ≤5 μm. Among them, a pre-dispersed colorant produced by BASF with a trade name of Irgazin blue PG was used.

[0072] Table 7 Base Ink 2 Recipe

[0073] components

Embodiment 3

[0075] With reference to base ink example 2, the colorant in the formula was replaced with a pre-dispersed colorant produced by BASF, trade name: Cromophtal GRP, and rolled on a three-roll ink mill to form a base ink with a fineness≤5 μm.

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Abstract

The invention provides a carving gravure ink and a preparation method and a safety product thereof. The fineness of the ink is less than or equal to 5 [mu]m, and the ink comprises the following components by the weight percentage: 40-70% of a connecting material composition, 7-25% of a colorant, 5-30% of a filler with the particle size (D50) of less than or equal to 1.5 [mu]m, 5-15% of wax, 0.2-8% of a surfactant, 0.5-3% of a drying agent, 0.5-5% of an ink regulator, and 1-6% of a composite solvent. The invention also provides the preparation method and the safety product of the carving gravure ink. The ultra-fine ink is obtained through selection and matching of connecting materials and the colorant as well as the related accessories; and the ink can especially meet the requirements of fine gravure pattern printing of a digitizing laser engraving plate making, and achieves the effects of improving the gradation expressive force and the anti-counterfeiting level of the printing product.

Description

technical field [0001] The invention relates to an engraving gravure printing ink, a preparation method thereof and a security product, belonging to the technical field of printing. Background technique [0002] Engraving gravure printing technology is used for the printing of high-end products due to its unique pattern structure and outstanding gravure touch, especially for the printing of security products with anti-counterfeiting functions such as banknotes and special tickets. In recent years, in order to improve the unique public anti-counterfeiting technology of security products, digital laser engraving plate-making technology has attracted attention. Compared with traditional engraved gravure printing plates, digital laser engraving plates integrate fine and deep patterns into one, effectively The level of printed patterns is enhanced, which is more conducive to improving the public anti-counterfeiting level of printed products. [0003] Digital laser engraving plat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/105C09D11/103C09D11/03
Inventor 周树荣雷文骅吕建英麻宝成高瑞武建国
Owner CHINA BANKNOTE SECURITY PRINTING TECH RES INST CO LTD
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