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Reversible pressure-sensitive-discoloration anti-counterfeiting ink and preparation method thereof

A technology of anti-counterfeiting ink and color-changing capsules, which can be applied in inks, household utensils, applications, etc., and can solve the problems of irreversible color development, non-repeatable use, irreversible color development of pressure-sensitive color-changing anti-counterfeiting inks, etc.

Inactive Publication Date: 2014-04-02
林友康
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a reversible pressure-sensitive color-changing anti-counterfeiting ink to solve the technical problem that the color development of the pressure-sensitive color-changing anti-counterfeiting ink in the prior art is irreversible and cannot be used repeatedly
[0005] Another object of the present invention is to provide a method for preparing the above-mentioned reversible pressure-sensitive color-changing anti-counterfeiting ink, so as to solve the technical problem that the color development of the pressure-sensitive color-changing anti-counterfeiting ink in the prior art is irreversible and cannot be used repeatedly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The raw material formula of the reversible pressure-sensitive color-changing anti-counterfeiting ink is as follows:

[0039] 1 / 4 second nitrocellulose 11.64 parts;

[0040] 7.76 parts of polyamide resin;

[0041] Reversible pressure-sensitive discoloration capsule powder 31.5 parts;

[0042] 29.1 parts of n-propyl acetate;

[0043] 21 parts of isopropanol;

[0044] Leveling agent 0.21 parts;

[0045] Defoamer 0.19 parts.

[0046] Prepare the reversible pressure-sensitive color-changing anti-counterfeiting ink as follows:

[0047] (1) Add 1 / 4 second nitrocellulose to the mixture of isopropanol and n-propyl acetate and stir to dissolve, then add polyamide resin, leveling agent and defoamer;

[0048] (2) Stir at a stirring speed of 150 rpm until the polyamide resin is fully wetted, then increase the stirring speed to 500 rpm, and when the polyamide resin is completely dissolved, reduce the stirring speed to 250 rpm, press Add the reversible pressure-sensitive color-...

Embodiment 2

[0053] The raw material formula of the reversible pressure-sensitive color-changing anti-counterfeiting ink is as follows:

[0054] 12.6 parts of 1 / 4 second nitrocellulose;

[0055] 8.4 parts of polyamide resin;

[0056] Reversible pressure-sensitive discoloration capsule powder 29.1 parts;

[0057] 31.5 parts of n-propyl acetate;

[0058] 19.4 parts of isopropanol;

[0059] Leveling agent 0.19 parts;

[0060] 0.21 part of defoamer.

[0061] Prepare the reversible pressure-sensitive color-changing anti-counterfeiting ink as follows:

[0062] (1) Add 1 / 4 second nitrocellulose to the mixture of isopropanol and n-propyl acetate and stir to dissolve, then add polyamide resin, leveling agent and defoamer;

[0063] (2) Stir at a stirring speed of 200 rpm until the polyamide resin is fully wetted, then increase the stirring speed to 600 rpm, and when the polyamide resin is completely dissolved, reduce the stirring speed to 350 rpm, press Add the reversible pressure-sensitive c...

Embodiment 3

[0068] The raw material formula of the reversible pressure-sensitive color-changing anti-counterfeiting ink is as follows:

[0069]12 parts of 1 / 4 second nitrocellulose;

[0070] 8 parts of polyamide resin;

[0071] Reversible pressure-sensitive discoloration capsule powder 30 parts;

[0072] 30 parts of n-propyl acetate;

[0073] 20 parts of isopropanol;

[0074] Leveling agent 0.2 part;

[0075] 0.2 part of defoamer.

[0076] Prepare the reversible pressure-sensitive color-changing anti-counterfeiting ink as follows:

[0077] (1) Add 1 / 4 second nitrocellulose to the mixture of isopropanol and n-propyl acetate and stir to dissolve, then add polyamide resin, leveling agent and defoamer;

[0078] (2) Stir at a stirring speed of 175 rpm until the polyamide resin is fully wetted, then increase the stirring speed to 550 rpm, and when the polyamide resin is completely dissolved, reduce the stirring speed to 300 rpm, press Add the reversible pressure-sensitive color-changing ...

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Abstract

The invention relates to the technical field of anti-counterfeiting ink and particularly relates to reversible pressure-sensitive-discoloration anti-counterfeiting ink and a preparation method thereof. The anti-counterfeiting ink disclosed by the invention contains the following ingredients in parts by weight: 11.64-12.6 parts of 1 / 4-second nitro-cotton, 7.76-8.4 parts of polyamide resin, 29.1-31.5 parts of reversible pressure-sensitive-discoloration capsule powder, 29.1-31.5 parts of n-propyl acetate, 19.4-21 parts of isopropanol, 0.19-0.21 part of leveling agent and 0.19-0.21 part of defoamer. Compared with the prior art, the reversible pressure-sensitive-discoloration anti-counterfeiting ink disclosed by the invention is in reversible color development, and a face printed with the ink is white; when the face is scratched by a nail, the face shows blue and returns to white a few seconds later, so that the ink can be repeatedly used; the principle of color restoration is as follows: achromatic restoration is achieved after substance molecules in capsule cores are re-crystallized, and the speed of re-crystallization is the speed of color restoration.

Description

technical field [0001] The invention relates to the technical field of anti-counterfeit inks, in particular to a reversible pressure-sensitive discoloration anti-counterfeit ink and a preparation method thereof. Background technique [0002] The so-called anti-counterfeiting ink is a special printing ink made by adding anti-counterfeiting materials with special properties into the ink raw materials and processed by a special process. This special printing ink is mainly printed on tickets, product trademarks and packaging by printing. Most of the anti-counterfeiting features of anti-counterfeiting inks are to allow the public to distinguish between true and false under the conditions of the first time and the first occasion, also known as first-line anti-counterfeiting. Pressure-sensitive color-changing anti-counterfeiting ink is a kind of anti-counterfeiting ink, but the current pressure-sensitive color-changing anti-counterfeiting ink has the following defects: [0003] T...

Claims

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Application Information

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IPC IPC(8): C09D11/50
Inventor 林友康
Owner 林友康
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