Anti-counterfeiting ink for plastic packaging

A technology for anti-counterfeiting ink and plastic packaging, applied in the field of ink, can solve the problems of no enhanced fluorescence intensity, short service life, poor oxidation resistance, etc., and achieve the effects of prolonging the fluorescence decay time, improving the service life and improving the oxidation resistance.

Inactive Publication Date: 2019-06-07
广州铮讯信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing anti-counterfeiting ink can meet the requirements of environmental protection and green, but it does not have the effect of enhancing the fluorescence intensity, and has poor oxidation resistance and short service life.

Method used

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  • Anti-counterfeiting ink for plastic packaging
  • Anti-counterfeiting ink for plastic packaging
  • Anti-counterfeiting ink for plastic packaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] see Figure 1-3 Shown, a kind of anti-counterfeit ink for plastic packaging, this anti-counterfeit ink is prepared by following raw materials by weight: 120 parts of resin, 0.3 part of fluorescent powder, 12 parts of cerium trichloride, 24 parts of lanthanum trichloride, 36 parts of chitosan Sugar, 12 parts of pigments, 2 parts of additives;

[0037] The anti-counterfeiting ink is prepared through the following steps:

[0038] Step 1, react cerium trioxide and hydrochloric acid in a container, the reaction temperature is 85 ° C, and the reaction time is 30 minutes to obtain an aqueous solution of cerium trichloride, which is filtered and dried to obtain solid cerium trichloride. Prepare solid lanthanum trichloride under the method;

[0039] Step 2: Dissolve the prepared lanthanum trichloride and cerium trichloride with distilled water, move to the volumetric flask of 100mL respectively, dilute to obtain 1mol / L lanthanum trichloride and cerium trichloride solution, the p...

Embodiment 2

[0046] see Figure 1-3 Shown, a kind of anti-counterfeiting ink for plastic packaging, this anti-counterfeiting ink is prepared by the following raw materials in parts by weight: 80 parts of resin, 0.2 part of fluorescent powder, 8 parts of cerium trichloride, 16 parts of lanthanum trichloride, 24 parts of chitosan Sugar, 8 parts of pigment, 1 part of additive;

[0047] The anti-counterfeiting ink is prepared through the following steps:

[0048] Step 1, react cerium trioxide and hydrochloric acid in a container, the reaction temperature is 75 ° C, and the reaction time is 3 minutes to obtain an aqueous solution of cerium trichloride, which is filtered and dried to obtain solid cerium trichloride. Prepare solid lanthanum trichloride under the method;

[0049] Step 2: Dissolve the prepared lanthanum trichloride and cerium trichloride with distilled water, move to the volumetric flask of 100mL respectively, dilute to obtain 1mol / L lanthanum trichloride and cerium trichloride s...

Embodiment 3

[0055] see Figure 1-3 Shown, a kind of anti-counterfeiting ink for plastic packaging, this anti-counterfeiting ink is prepared by following raw materials in parts by weight: 80 parts of resin, 0.2 part of fluorescent powder, 8 parts of cerium trichloride, 24 parts of chitosan, 8 parts of pigment, 1 part of auxiliary agent;

[0056] The anti-counterfeiting ink is prepared through the following steps:

[0057] Step 1, reacting cerium trioxide and hydrochloric acid in a container, the reaction temperature is 75° C., and the reaction time is 3 minutes to obtain an aqueous solution of cerium trichloride, which is filtered and dried to obtain solid cerium trichloride;

[0058] Step 2, dissolve the prepared cerium trichloride with distilled water, move to 100mL volumetric flask respectively, dilute to obtain 1mol / L cerium trichloride solution, the pH value of the solution is 5.5;

[0059] Step 3. Add the cerium trichloride solution prepared in step 2 dropwise to excess chitosan di...

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Abstract

The invention discloses anti-counterfeiting ink for plastic packaging. The anti-counterfeiting ink is prepared from the following raw materials in parts by weight: 80-120 parts of resin, 0.2-0.3 partof fluorescent powder, 8-12 parts of cerium trichloride, 16-24 parts of lanthanum trichloride, 24-36 parts of chitosan and 8-12 parts of pigment. According to the anti-counterfeiting ink, La<3+> is added, and fluorescence intensity of Ce<3+> can be enhanced by the La<3+>. In addition, the excessive chitosan reacts with the lanthanum trichloride and the cerium trichloride. Firstly hydroxyl in the chitosan is coordinated with the cerium trichloride, so that the fluorescence intensity is improved; through synergistic effect of the hydroxyl and the cerium trichloride, the fluorescence intensity isfurther improved; and through organic combination of the transition metal cerium and the fluorescent powder which is tertiary calcium phosphate fluorescent powder, the fluorescent intensity of the fluorescent powder in high-shielding-strength ink such as red ink, yellow ink, green ink, blue ink, white ink, black ink and the like can be enhanced, the fluorescent decay time of the fluorescent anti-counterfeiting ink is prolonged, and the characteristics of long concealing time, good anti-counterfeiting effect and the like of the fluorescent anti-counterfeiting ink are achieved.

Description

technical field [0001] The invention relates to the technical field of inks, in particular to an anti-counterfeit ink for plastic packaging. Background technique [0002] Plastic packaging refers to packaging in plastic. Plastics are based on synthetic or natural polymer resins. After adding various additives, it has ductility under certain temperature and pressure, and it is a kind of material that can fix its shape after cooling. In the process of packaging, an anti-counterfeiting layer needs to be coated with ink. [0003] Anti-forgery ink (anti-forgery ink), the ink that changes under special conditions is used to print visible or invisible signs, which is convenient for verification and prevention of counterfeiting. Anti-counterfeiting ink is ink with anti-counterfeiting properties. Anti-counterfeiting ink is an extremely important anti-counterfeiting technical field, which has a wide range of applications and involves many disciplines. It is a special ink with ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/50C09D11/03B02C4/08B02C4/28B02C4/42
Inventor 梁文静唐海球
Owner 广州铮讯信息科技有限公司
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