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Preparation method for water-based fluorescence enhanced anti-forgery ink

An anti-counterfeiting ink and fluorescence enhancement technology, applied in ink, household appliances, applications, etc., can solve the problems of black fluorescent ink not having enhanced fluorescence intensity, unable to achieve fluorescent anti-counterfeiting, unable to achieve green printing, etc., to achieve high luminous intensity, prolonged The effect of fluorescence decay time and long concealment time

Inactive Publication Date: 2012-10-03
海宁鼎丞智能设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The black fluorescent ink does not have the function of enhancing the fluorescence intensity, nor does it have the characteristics of water-based ink. It is not a green environmental protection ink and cannot meet the requirements of green printing. The odor emitted by the ink will pollute the environment and cause harm to the human body. It is low toxicity ink
The current water-based ink can meet the requirements of green printing, but this kind of ink usually cannot achieve fluorescent anti-counterfeiting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step (1). 1 kg of cerium trioxide and 2 liters of hydrochloric acid with a concentration of 35% were reacted at 80° C. for 15 minutes to obtain an aqueous solution of cerium trichloride, which was filtered and dried to obtain solid cerium trichloride;

[0025] Step (2). Add 1kg of solid cerium trichloride to 30 liters of ethanol solution with a concentration of 15%, and stir evenly at 85° C. to obtain cerium trichloride ethanol solution;

[0026] 0.5kg o-phenanthroline was added into 21 liters of concentration in the ethanol solution of 22%, stirred evenly to obtain o-phenanthroline ethanol solution;

[0027] Add 3 liters of acetylacetone into 60 liters of ethanol solution with a concentration of 15%, and stir evenly to obtain acetylacetone ethanol solution;

[0028] Step (3). Slowly add the o-phenanthroline ethanol solution while stirring the cerium trichloride ethanol solution, add the NaOH solution with a concentration of 0.1g / L during the stirring process, adjust th...

Embodiment 2

[0031] Step (1). 1 kg of cerium trioxide and 2.5 liters of hydrochloric acid with a concentration of 34% were reacted at 75° C. for 30 minutes to obtain an aqueous solution of cerium trichloride, which was filtered and dried to obtain solid cerium trichloride;

[0032] Step (2). Take 1 kg of solid cerium trichloride and add it to 20 liters of ethanol solution with a concentration of 25%, and stir evenly at 75° C. to obtain cerium trichloride ethanol solution;

[0033] Adding 0.1kg of phenanthroline to 6 liters of ethanol solution with a concentration of 15%, stirred evenly to obtain ethanol solution of phenanthroline;

[0034] Add 2 liters of acetylacetone into 30 liters of ethanol solution with a concentration of 25%, and stir evenly to obtain acetylacetone ethanol solution;

[0035] Step (3). Slowly add the o-phenanthroline ethanol solution while stirring the cerium trichloride ethanol solution, add the NaOH solution with a concentration of 0.12g / L during the stirring proces...

Embodiment 3

[0038] Step (1). 1 kg of cerium trioxide and 3 liters of hydrochloric acid with a concentration of 33% were reacted at 85° C. for 3 minutes to obtain an aqueous solution of cerium trichloride, which was filtered and dried to obtain solid cerium trichloride;

[0039] Step (2). Add 1 kg of solid cerium trichloride to 22 liters of ethanol solution with a concentration of 22%, and stir evenly at 78° C. to obtain cerium trichloride ethanol solution;

[0040] Add 0.3kg o-phenanthroline to 12 liters of concentration in the ethanol solution of 25%, stir evenly, obtain o-phenanthroline ethanol solution;

[0041]Add 2 liters of acetylacetone into 40 liters of ethanol solution with a concentration of 22%, and stir evenly to obtain acetylacetone ethanol solution;

[0042] Step (3). Slowly add the o-phenanthroline ethanol solution while stirring the cerium trichloride ethanol solution, add the NaOH solution with a concentration of 0.15g / L during the stirring process, adjust the pH value to...

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PUM

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Abstract

The invention relates to a preparation method for water-based fluorescence enhanced anti-forgery ink. The present water-based ink cannot realize the characteristics of fluorescence enhancement, restraining and impeding effects for fluorescence attenuation, long fluorescence anti-forgery time, excellent hiding effect, and the like. The preparation method provided by the invention comprises the following steps: firstly, reacting cerium oxide with hydrochloric acid, thereby obtaining solid-state cerous chloride; preparing a cerous chloride alcohol solution, a phenanthroline alcohol solution and an acetylacetone alcohol solution; successively adding the phenanthroline alcohol solution and the acetylacetone alcohol solution into the cerous chloride alcohol solution; filtering and drying, thereby obtaining a complex of transition metal cerium; uniformly mixing and stirring the complex of transition metal cerium, resin and fluorescent powder, and then adding emulsifying agent, pigment, de-foaming agent, dispersing agent, antibacterial agent, wetting agent and flatting agent; and quickly stirring and repeatedly grinding, thereby obtaining the water-based fluorescence enhanced anti-forgery ink. According to the preparation method provided by the invention, the water-base resin is taken as a connecting material, thereby being non-toxic and pollution-free. The preparation method provided by the invention is simple and reliable and can be applied to industrial production.

Description

technical field [0001] The invention relates to a preparation method of water-based ink, in particular to a preparation method of water-based anti-counterfeiting ink, which can realize fluorescence enhanced anti-counterfeiting. Background technique [0002] In the prior art, for example, patent ZL200510043020.8 discloses a black fluorescent ink that is applicable to various printing methods and has good anti-counterfeiting effects. It mainly includes 5-50% fluorescent material, 5-40% black pigment, 1-40% of blue pigment, 10-60% of binder, 0.1-40% of filler, 2-60% of additives; the binder is phenolic resin, alkyd resin, rosin ester, polyamide resin, One or more of acrylic resin and acrylic derivative resin, the additive is one or more of varnish, waxy tack remover, desiccant, solvent, surfactant, and the filler is colloidal calcium , calcium carbonate or fumed silica. The black fluorescent ink does not have the function of enhancing the fluorescence intensity, nor does it h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10C09D11/50
Inventor 陈梅项秀阳梁多平唐义祥吴一帆
Owner 海宁鼎丞智能设备有限公司
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