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Anti-counterfeiting ink and preparation method thereof

An anti-counterfeiting ink and pigment technology, applied in inks, household appliances, applications, etc., can solve the problems of large amount of ink raw materials, difficult to remove odor, high ink solid content, environmental protection and health protection, good printing effect, good dispersibility sexual effect

Active Publication Date: 2012-06-13
CHANGDE JINPENG PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are many deficiencies in screen printing UV inks. In the production process, the amount of ink raw materials is large, the consumption of additives and anti-counterfeiting materials is large, and the production efficiency is low.
In the ink printing process, the amount of ink transfer is large, the product’s volatile organic compound (VOC) limit index is difficult to meet the standard, and the odor is difficult to remove. The potential hidden dangers of 151 substances are caused by the increase of chemical materials; after printing, the coating is thicker (generally more than 20μm), in addition, the screen printing UV printing method, the solid content of the ink is high, and the chemical materials are very easy to produce benzene series during the drying process through the ultraviolet lamp, which increases the difficulty of reaching the VOC limit index.

Method used

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preparation example Construction

[0048] The present invention also provides a preparation method of anti-counterfeiting ink, comprising:

[0049] a) dissolving the water-based polyacrylic acid resin in a solvent to obtain a binder solution;

[0050] b) mixing the binder solution with the pigment and dispersing evenly;

[0051] c) adding a filler, a leveling agent, and a wetting agent to the solution obtained in the step b) in sequence, and performing an emulsification operation to obtain an anti-counterfeiting ink.

[0052] According to the present invention, the raw materials are calculated by weight fraction: 10-40 parts of pigment; 30-60 parts of water-based vehicle; 0.1-5 parts of leveling agent; 0.1-5 parts of wetting agent; wherein the pigment is matte powder; The water-based binder is water-based polyacrylic resin; the solid content of the anti-counterfeiting ink is 30wt%-60wt%. Preferably, the pigment is 15-35 parts; the water-based vehicle is 40-50 parts; the leveling agent is 0.3-3 parts; the wett...

Embodiment 1

[0057] Prepare materials according to the following weight ratio: matte powder 10g; water-based polyacrylic resin 30g; pearl powder 5g, C 3 h 8 N 2 O0.3g; wetting agent 0.3g, defoamer 0.5g; water 5g, ethanol 10g.

[0058] In the light-shielding and dust-free workshop, the temperature is 25°C, and the humidity is 65%. In the reaction kettle, put solvent water and ethanol first, then put in water-based polyacrylic resin, soak for 2 hours, stir for 45 minutes, and add the pigment after it is completely dissolved. Disperse at 2500rad / min for 30 minutes, then add pearl powder to stir evenly, then add leveling agent, wetting agent and defoamer in turn, and emulsify for 45 minutes. The speed of emulsifier is 2500rad / min. ink. After the ink is ready, check the hue and control the viscosity at 50S. Use a No. 3 Zahn cup to test, and the solid content is 30%. After passing the test, filter it with a 200-mesh filter cloth, and pack it in a plastic barrel for storage.

Embodiment 2

[0060] Prepare materials according to the following weight ratio: matte powder 40g, water-based polyacrylic resin 60g, pearl powder 10g, C 3 h 8 N 2 O3g, wetting agent 3g, defoamer 3g, water 10g, ethanol 20g.

[0061] In the light-shielding and dust-free workshop, the temperature is 27°C, and the humidity is 70%. In the reaction kettle, put solvent water and ethanol first, then put in water-based polyacrylic resin, soak for 2.5 hours, stir for 45 minutes, and add the pigment after it is completely dissolved. Disperse at 2500rad / min for 30 minutes, add pearlescent powder to stir evenly, then add leveling agent, wetting agent and defoamer in turn, emulsify at 2500rad / min for 45 minutes, after the ink is ready, check the hue and control the viscosity at 50-80S, tested with No. 3 Zahn Cup, the solid content is 60%, filtered with 200-mesh filter cloth after passing the test, and packed in plastic barrels for storage.

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Abstract

The invention provides anti-counterfeiting ink, comprising the following components in parts by weight: 10-40 parts of pigment, 30-60 parts of water-based binder, 0.1-5 parts of flatting agent, 0.1-5 parts of wetting agent and 5-30 parts of solvent, wherein the pigment is matte powder; the water-based binder is water-based polyacrylic resin; and solid content of the anti-counterfeiting ink is 30-60wt%. The water-based anti-counterfeiting snowflake ink provided by the invention has low solid content, is environmentally friendly and is convenient to produce and use.

Description

technical field [0001] The invention relates to the technical field of polymer composition and its preparation, in particular to an anti-counterfeiting ink and its preparation method. Background technique [0002] Anti-counterfeiting ink refers to the special printing ink that is made by adding materials that can change the color, hardness and other properties under certain conditions to the ink raw materials, and uniformly mixing with other additives. The anti-counterfeit ink is printed on tickets, product trademarks and packages, and consumers can clearly distinguish the authenticity of products by visual inspection or touch. Anti-counterfeiting inks are easy to operate, low in cost, good in concealment, bright in color, convenient in inspection (even the color can be changed by hand temperature), and strong reproducibility, while intelligent machine-readable (machine expert identification) anti-counterfeiting inks are complex in detection and strong in reproducibility. I...

Claims

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Application Information

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IPC IPC(8): C09D11/10C09D11/50
Inventor 孔繁辉徐军邓强李新建
Owner CHANGDE JINPENG PRINTING
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