Five preparation methods of anti-counterfeiting ink

Anti-counterfeiting ink is to add special functional materials to ordinary ink, so as to have anti-counterfeiting function. The anti-counterfeiting product obtained by this ink printing has low cost and convenient inspection.

Anti-counterfeiting ink has the following preparation methods:

1) Adopt mechanical methods (force-induced deformation, force-induced heating, force-induced sound, etc.)

For example, the force-discoloring anti-counterfeiting logo, the outer layer of its special functional material is a microcapsule, the inner layer is filled with dye, and it is mixed and printed with ordinary ink. Only the pressure on the surface of the logo needs to be forced during inspection. The capsule is broken due to the external force When the dye is released, the color changes immediately. The color of the capsule dye can be selected arbitrarily to obtain a variety of anti-counterfeiting effects.

2) Using thermodynamic methods (thermochromism, thermochromism and luminescence)

For example, if a thermochromic material is added to the ink, if the ambient temperature changes, the color will change accordingly to achieve the anti-counterfeiting effect.

3) Using electrical methods (electrochromism, electroluminescence)

For example, electrochromic ink, it is to add some functional materials (such as tungsten trioxide, conductive polymer, etc.) to the ordinary ink. When the DC voltage is applied to it, the structure of the functional material changes and the appearance color of the ink changes.

4) Using optical methods (photochromism, photoluminescence, invisible discoloration, etc.)

For example, fluorescent ink, which adds fluorescent materials to ordinary ink, when ultraviolet light is irradiated, it will radiate visible light to achieve anti-counterfeiting purposes.

5) According to the needs of customers, the anti-counterfeiting ink formulations with special brand of commercial products are adopted. The unique anti-counterfeiting ink products with strong uniqueness can achieve the purpose of protecting products.

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