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Inorganic optical variable ink and fabrication method thereof

A technology of color-changing ink and optics, which is applied in ink, household utensils, applications, etc., can solve the problems of low pigment synthesis output rate, narrow color gamut of color change, and difficult inspection, and achieve low cost, simple implementation, and convenient inspection.

Active Publication Date: 2014-05-21
SHANGHAI GAOCHENG CREATIVE TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an inorganic optical color-changing ink, which solves the problems of low pigment synthesis output rate, narrow color-changing color gamut and difficult inspection in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1, an inorganic optically variable ink, including pigments, binders and additives.

[0030] The composition of the pigment is silver-doped lanthanum titanate composite oxide La0.9Ag0.1TiO3, and its weight ratio is 20%. The binder consisted of 35% ethyl acetate, 15% ethyl cellulose and 10% epoxy resin by weight. The additives include 12.51% colloidal calcium, 1% polyethylene glycol, 1% anti-drying agent and 1% bentonite by weight. The anti-drying agent is made by mixing evenly according to the molar ratio of 2,6-di-tert-butyl-4-methylphenol: No. 6 oil = 5:95.

[0031] The preparation method of this inorganic optical color-changing ink is as follows:

[0032] Step 1, at normal temperature and pressure, mix the three powders / crystals according to the molar ratio of TiO2:La2O3:AgNO3=1:4:2, add absolute ethanol to grind into a paste, and put it in an oven with a temperature of 80°C 2h, take it out at room temperature, cool it and grind it into uniform and fine ...

Embodiment 2

[0037] Embodiment 2, Inorganic optically variable ink, including pigments, binders and additives.

[0038] The composition of the pigment is silver-doped lanthanum titanate composite oxide La0.9Ag0.1TiO3, and its weight ratio is 25%.

[0039] The connecting material comprises 40% ethyl acetate by weight, 25% ethyl cellulose and 15% epoxy resin;

[0040] The additives include: 15% colloidal calcium, 3% polyethylene glycol, 1% anti-drying agent and 3% bentonite by weight. The anti-drying agent is made by mixing evenly according to the molar ratio of 2,6-di-tert-butyl-4-methylphenol: No. 6 oil = 5:95.

[0041] The preparation method of the inorganic optical color-changing ink:

[0042] Step 1, at normal temperature and pressure, mix the three powders / crystals according to the molar ratio of TiO2:La2O3:AgNO3=1:4:2, add absolute ethanol to grind into a paste, and put it in an oven with a temperature of 80°C 2h, take it out at room temperature, cool it and grind it into uniform a...

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Abstract

The invention discloses an inorganic optical variable ink comprising a pigment, a binder and an assistant, wherein the pigment is a silver-doped lanthanum titanate compound, and can become into brick-red from white under ultraviolet light irradiation. The preparation method comprises the following steps: 1, mixing TiO2, La2O3 and AgNO3 powder / crystal, adding absolute ethyl alcohol to, grinding into a paste, heating and taking out, cooling, grinding into even and fine particles, naturally cooling to room temperature after roasting, carrying out ball-milling, and sieving after baking, so as to obtain La0.9Ag0.1TiO3 particles; 2, preparing a mixed solution from ethyl acetate, ethyecellulose and epoxy resin; 3, adding colloidal calcium, polyethylene glycol, an antidesiccant and a dispersing agent to the mixed solution prepared in the step 2, and evenly mixing; 4, putting the mixed solution evenly mixed in the step 3 into a light-tight ball-milling tank, putting the La0.9Ag0.1TiO3 particles into the ball-milling tank, and taking out after ball-milling.

Description

technical field [0001] The invention belongs to the technical field of printing raw materials, and relates to an inorganic optical color-changing ink and a preparation method of the color-changing ink. Background technique [0002] The rapid development of science and technology and peripheral products of printing and packaging provide various conveniences for people's life in various ways and in different forms. But at the same time, the popularization of high-tech products has also given birth to the continuous emergence of various high-simulation fakes, which seriously damage the rights and interests of consumers and the economic interests of businesses. Therefore, from the perspective of protecting consumers' health and life safety, people's requirements and demands for anti-counterfeiting of various commodities are getting higher and higher. [0003] In recent years, new and efficient anti-counterfeiting technologies and anti-counterfeiting inks continue to emerge. Ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/037C09D11/102C09D11/14
Inventor 曹从军马若曦夏卫民
Owner SHANGHAI GAOCHENG CREATIVE TECH GRP
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