Cigarette packet anti-counterfeiting two-dimensional code ink and preparation method thereof

Abstract

The invention relates to the technical field of ink, and particularly discloses cigarette packet anti-counterfeiting two-dimensional code ink and a preparation method thereof. The anti-counterfeiting two-dimensional code ink for the cigarette packet is prepared from the following raw material components in parts by weight: 2 to 5 parts of pigment, 40 to 70 parts of UV monomer, 3 to 10 parts of UV resin, 6 to 11 parts of photoinitiator and 0.1 to 1.5 parts of flatting agent, the UV monomer comprises a mixture composed of 1, 6-hexanediol diacrylate and tetrahydrofuran acrylate. The preparation method of the cigarette packet anti-counterfeiting two-dimensional code ink comprises the following steps: firstly, grinding the pigment and part of the UV monomer to obtain a grinding material; and adding the UV resin, the remaining UV monomer, the photoinitiator and the flatting agent into the abrasive, stirring and dispersing for 3-5 hours, detecting the viscosity of the mixture at 25 DEG C, and filtering when the viscosity is 14-17 cp to obtain the cigarette packet anti-counterfeiting two-dimensional code ink.

Description

Technical Field

[0001] The present application relates to the technical field of ink, and in particular to an anti-counterfeiting two-dimensional code ink for cigarette packages and a preparation method thereof. Background Art

[0002] The QR code for anti-counterfeiting of cigarette packages is an advanced technology adopted by the tobacco industry to deal with counterfeit and shoddy products, protect consumer rights and realize product traceability. The QR code technology is combined with mobile smart devices and apps, such as the real and fake cigarette identification scanning program in the DingTalk app, so that consumers can easily and quickly judge the authenticity of cigarettes. The use of QR codes deepens the depth and precision of finished cigarette management and realizes lean management. However, most commonly used cigarette packages are barcodes, and there are also a few QR codes. These codes are the same for multiple packs of cigarettes, and it is impossible to achieve a QR code for each pack of cigarettes, and the stability and adhesion performance of QR code ink need to be further improved. Summary of the invention

[0003] In order to improve the stability and adhesion performance of two-dimensional code ink, the present application provides a cigarette package anti-counterfeiting two-dimensional code ink and a preparation method thereof.

[0004] In the first aspect, the present application provides a cigarette package anti-counterfeiting two-dimensional code ink, which adopts the following technical solution: A cigarette package anti-counterfeiting two-dimensional code ink, the raw materials of the ink include the following components in parts by weight: 2 to 5 parts of pigment, 40 to 70 parts of UV monomer, 3 to 10 parts of UV resin, 6 to 11 parts of photoinitiator, and 0.1 to 1.5 parts of leveling agent; the UV monomer includes a mixture of 1,6-hexanediol diacrylate and tetrahydrofuran acrylate.

[0005] By adopting the above technical solution, using a composite UV monomer composed of 1,6-hexanediol diacrylate and tetrahydrofuran acrylate, and then combining it with a UV resin, a photoinitiator, and a leveling agent, the obtained two-dimensional code ink has higher stability and adhesion performance.

[0006] In a specific embodiment, the weight ratio of 1,6-hexanediol diacrylate to tetrahydrofuran acrylate in the UV monomer is 1:(4-6).

[0007] By adopting the above technical solution, the ratio of 1,6-hexanediol diacrylate and tetrahydrofuran acrylate in the UV monomer is further limited, thereby further improving the performance of the obtained two-dimensional code ink.

[0008] In one specific embodiment, the pigment comprises vegetable carbon black.

[0009] By adopting the above technical solution and selecting plant carbon black as pigment, not only the color can be improved, but also the adhesion performance and stability of the ink can be further improved.

[0010] In a specific embodiment, the UV resin includes a mixture of polyester resin and polyurethane resin, and the weight ratio of the polyester resin to the polyurethane resin is 1:(0.5-1).

[0011] By adopting the above technical solution and selecting a composite UV resin composed of polyester resin and polyurethane resin, the obtained ink not only has good wear resistance and chemical resistance, but also has good adhesion.

[0012] In a specific embodiment, the photoinitiator includes a mixture of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone.

[0013] By adopting the above technical scheme, the composite photoinitiator composed of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone is preferred. In addition to having a good initiation effect, it can also further improve the adhesion and wear resistance of the ink.

[0014] In a specific embodiment, the leveling agent includes an organic silicone leveling agent.

[0015] By adopting the above technical solution, the organosilicon leveling agent makes it difficult for the ink to clog the nozzle during spraying and can also enhance the glossiness of the ink.

[0016] In the second aspect, the present application provides a method for preparing an anti-counterfeiting two-dimensional code ink for cigarette packages, which adopts the following technical solution: A method for preparing anti-counterfeiting two-dimensional code ink for cigarette packages, comprising the following steps: First, the pigment and part of the UV monomer are ground to obtain a grind; then, UV resin, the remaining UV monomer, photoinitiator, and leveling agent are added to the grind, stirred and dispersed for 3-5 hours, and the viscosity of the mixture is tested at 25°C. When the viscosity is 14-17cp, it is filtered to obtain the cigarette package anti-counterfeiting QR code ink.

[0017] By adopting the above technical solution, the pigment and part of the UV monomer are first ground, and then the UV resin, the remaining UV monomer, the photoinitiator, and the leveling agent are added, stirred and dispersed for 3-5 hours, and filtered to obtain the cigarette package anti-counterfeiting QR code ink with good adhesion performance.

[0018] In a specific embodiment, the particle size of the millbase is less than 300 nm and the viscosity is 50-150 cp.

[0019] In summary, the present application includes at least one of the following beneficial technical effects: 1. In this application, a composite UV monomer composed of 1,6-hexanediol diacrylate and tetrahydrofuran acrylate is used, and then combined with UV resin, photoinitiator, and leveling agent to obtain a two-dimensional code ink with high stability and adhesion performance; 2. The composite UV resin composed of polyester resin and polyurethane resin is selected in this application, so that the obtained ink not only has good wear resistance and chemical resistance, but also has good adhesion; 3. The method in this application first grinds the pigment and part of the UV monomer, then adds the UV resin, the remaining UV monomer, the photoinitiator, and the leveling agent, stirs and disperses, and filters to obtain the cigarette package anti-counterfeiting QR code ink with good adhesion performance. DETAILED DESCRIPTION

[0020] The present application is further described in detail below in conjunction with embodiments.

[0021] All raw materials in the examples can be obtained from commercial sources, including polyester resin CAS No. 26098-37-3 and silicone leveling agent model KLAMAER-BYK-349. Example

[0022] Example 1 Embodiment 1 provides a method for preparing anti-counterfeiting two-dimensional code ink for cigarette packages, comprising the following steps: First, 2kg of pigment and 20kg of UV monomer are added to a sand mill and ground for 20 hours to obtain a grind material, so that the particle size of the grind material is less than 300nm and the viscosity is 50-150cp; then, 3kg of UV resin, 20kg of UV monomer, 6kg of photoinitiator, and 0.1kg of leveling agent are added to the grind material, stirred and dispersed for 4 hours, and the viscosity of the mixture is tested at 25°C. When the viscosity is 14-17cp, it is filtered to obtain a cigarette package anti-counterfeiting two-dimensional code ink; wherein the pigment is plant carbon black; the UV monomer is composed of 1,6-hexanediol diacrylate and tetrahydrofuran acrylate The UV resin is a mixture of polyester resin and polyurethane resin, and the weight ratio of polyester resin to polyurethane resin is 1:0.5; the photoinitiator is a mixture of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone, and the weight ratio of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone is 1:1; the leveling agent is a silicone leveling agent.

[0023] Example 2 Embodiment 2 provides a method for preparing anti-counterfeiting two-dimensional code ink for cigarette packages, comprising the following steps: First, 3.5 kg of pigment and 27.5 kg of UV monomer were added to a sand mill and ground for 20 hours to obtain a grind material, so that the particle size of the grind material was less than 300 nm and the viscosity was 50-150 cp; then, 6.5 kg of UV resin, 27.5 kg of UV monomer, 8.5 kg of photoinitiator and 1 kg of leveling agent were added to the grind material, stirred and dispersed for 4 hours, and the viscosity of the mixture was tested at 25°C. When the viscosity was 14-17 cp, it was filtered to obtain a cigarette package anti-counterfeiting two-dimensional code ink; wherein the pigment was plant carbon black; the UV monomer was 1,6-hexanediol diacrylate, tetrahydrofuran acrylate The UV resin is a mixture of polyester resin and polyurethane resin, and the weight ratio of polyester resin to polyurethane resin is 1:0.5; the photoinitiator is a mixture of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone, and the weight ratio of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone is 1:1; the leveling agent is a silicone leveling agent.

[0024] Example 3 Embodiment 3 provides a method for preparing anti-counterfeiting two-dimensional code ink for cigarette packages, comprising the following steps: First, 5kg of pigment and 35kg of UV monomer are added to a sand mill and ground for 20 hours to obtain a grind material, so that the particle size of the grind material is less than 300nm and the viscosity is 50-150cp; then, 10kg of UV resin, 35kg of UV monomer, 11kg of photoinitiator, and 1.5kg of leveling agent are added to the grind material, stirred and dispersed for 4 hours, and the viscosity of the mixture is tested at 25°C. When the viscosity is 14-17cp, it is filtered to obtain a cigarette package anti-counterfeiting two-dimensional code ink; wherein the pigment is plant carbon black; the UV monomer is composed of 1,6-hexanediol diacrylate and tetrahydrofuran acrylate The UV resin is a mixture of polyester resin and polyurethane resin, and the weight ratio of polyester resin to polyurethane resin is 1:0.5; the photoinitiator is a mixture of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone, and the weight ratio of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone is 1:1; the leveling agent is a silicone leveling agent.

[0025] Example 4 Embodiment 4 provides a method for preparing anti-counterfeiting two-dimensional code ink for cigarette packages, comprising the following steps: First, 3.5 kg of pigment and 27.5 kg of UV monomer were added to a sand mill and ground for 20 hours to obtain a grind material, so that the particle size of the grind material was less than 300 nm and the viscosity was 50-150 cp; then, 6.5 kg of UV resin, 27.5 kg of UV monomer, 8.5 kg of photoinitiator and 1 kg of leveling agent were added to the grind material, stirred and dispersed for 4 hours, and the viscosity of the mixture was tested at 25°C. When the viscosity was 14-17 cp, it was filtered to obtain a cigarette package anti-counterfeiting two-dimensional code ink; wherein the pigment was plant carbon black; the UV monomer was 1,6-hexanediol diacrylate, tetrahydrofuran acrylate The UV resin is a mixture of polyester resin and polyurethane resin, and the weight ratio of polyester resin to polyurethane resin is 1:0.5; the photoinitiator is a mixture of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone, and the weight ratio of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone is 1:1; the leveling agent is a silicone leveling agent.

[0026] Example 5 Embodiment 5 provides a method for preparing anti-counterfeiting two-dimensional code ink for cigarette packages, comprising the following steps: First, 3.5 kg of pigment and 27.5 kg of UV monomer were added to a sand mill and ground for 20 hours to obtain a grind material, so that the particle size of the grind material was less than 300 nm and the viscosity was 50-150 cp; then, 6.5 kg of UV resin, 27.5 kg of UV monomer, 8.5 kg of photoinitiator and 1 kg of leveling agent were added to the grind material, stirred and dispersed for 4 hours, and the viscosity of the mixture was tested at 25°C. When the viscosity was 14-17 cp, it was filtered to obtain a cigarette package anti-counterfeiting two-dimensional code ink; wherein the pigment was plant carbon black; the UV monomer was 1,6-hexanediol diacrylate, tetrahydrofuran acrylate The UV resin is a mixture of polyester resin and polyurethane resin, and the weight ratio of polyester resin to polyurethane resin is 1:0.5; the photoinitiator is a mixture of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone, and the weight ratio of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone is 1:1; the leveling agent is a silicone leveling agent.

[0027] Example 6 Embodiment 6 provides a method for preparing anti-counterfeiting two-dimensional code ink for cigarette packages, comprising the following steps: First, 3.5 kg of pigment and 27.5 kg of UV monomer were added to a sand mill and ground for 20 hours to obtain a grind material, so that the particle size of the grind material was less than 300 nm and the viscosity was 50-150 cp; then, 6.5 kg of UV resin, 27.5 kg of UV monomer, 8.5 kg of photoinitiator and 1 kg of leveling agent were added to the grind material, stirred and dispersed for 4 hours, and the viscosity of the mixture was tested at 25°C. When the viscosity was 14-17 cp, it was filtered to obtain a cigarette package anti-counterfeiting two-dimensional code ink; wherein the pigment was plant carbon black; the UV monomer was 1,6-hexanediol diacrylate, tetrahydrofuran acrylate The UV resin is a mixture of polyester resin and polyurethane resin, and the weight ratio of polyester resin to polyurethane resin is 1:0.75; the photoinitiator is a mixture of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone, and the weight ratio of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone is 1:1; the leveling agent is a silicone leveling agent.

[0028] Example 7 Example 7 provides a method for preparing an anti-counterfeiting two-dimensional code ink for a cigarette package, comprising the following steps: First, 3.5 kg of pigment and 27.5 kg of UV monomer were added to a sand mill for grinding for 20 hours to obtain a grind material, so that the particle size of the grind material was less than 300 nm and the viscosity was 50-150 cp; then, 6.5 kg of UV resin, 27.5 kg of UV monomer, 8.5 kg of photoinitiator and 1 kg of leveling agent were added to the grind material, stirred and dispersed for 4 hours, and the viscosity of the mixture was tested at 25°C. When the viscosity was 14-17 cp, it was filtered to obtain a cigarette package anti-counterfeiting two-dimensional code ink; wherein the pigment was plant carbon black; the UV monomer was 1,6-hexanediol diacrylate, tetrahydrofuran propylene The UV resin is a mixture of polyester resin and polyurethane resin, and the weight ratio of polyester resin to polyurethane resin is 1:1; the photoinitiator is a mixture of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone, and the weight ratio of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone is 1:1; the leveling agent is a silicone leveling agent.

[0029] Example 8 The difference between Example 8 and Example 6 is that the UV resin is polyester resin; the remaining steps are consistent with Example 6.

[0030] Example 9 The difference between Example 9 and Example 6 is that the UV resin is polyurethane resin; the remaining steps are consistent with Example 6.

[0031] Example 10 The difference between Example 10 and Example 6 is that the photoinitiator is trimethylbenzoyl-diphenylphosphine oxide; the remaining steps are consistent with Example 6.

[0032] Embodiment 11 The difference between Example 11 and Example 6 is that the photoinitiator is 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone; the remaining steps are consistent with Example 6.

[0033] Comparative Example Comparative Example 1 Comparative Example 1 provides a method for preparing an anti-counterfeiting two-dimensional code ink for a cigarette package, comprising the following steps: First, 2kg of pigment and 20kg of UV monomer were added to a sand mill and ground for 20 hours to obtain a grind material, so that the particle size of the grind material was less than 300nm and the viscosity was 50-150cp; then, 3kg of UV resin, 20kg of UV monomer, 6kg of photoinitiator and 0.1kg of leveling agent were added to the grind material, stirred and dispersed for 4 hours, and the viscosity of the mixture was tested at 25°C. When the viscosity was 14-17cp, it was filtered to obtain a cigarette package anti-counterfeiting two-dimensional code ink; wherein the pigment was plant carbon black; the UV monomer was 1 ,6-hexanediol diacrylate; the UV resin is a mixture of polyester resin and polyurethane resin, and the weight ratio of polyester resin to polyurethane resin is 1:0.5; the photoinitiator is a mixture of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone, and the weight ratio of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone is 1:1; the leveling agent is a silicone leveling agent.

[0034] Comparative Example 2 Comparative Example 2 provides a method for preparing an anti-counterfeiting two-dimensional code ink for a cigarette package, comprising the following steps: First, 2kg of pigment and 20kg of UV monomer are added to a sand mill and ground for 20 hours to obtain a grind material, so that the particle size of the grind material is less than 300nm and the viscosity is 50-150cp; then 3kg of UV resin, 20kg of UV monomer, 6kg of photoinitiator, and 0.1kg of leveling agent are added to the grind material, stirred and dispersed for 4 hours, and the viscosity of the mixture is tested at 25°C. When the viscosity is 14-17cp, it is filtered to obtain a cigarette package anti-counterfeiting two-dimensional code ink; wherein the pigment is plant carbon black; UV monomer It is tetrahydrofuran acrylate; the UV resin is a mixture of polyester resin and polyurethane resin, and the weight ratio of polyester resin to polyurethane resin is 1:0.5; the photoinitiator is a mixture of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone, and the weight ratio of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone is 1:1; the leveling agent is a silicone leveling agent.

[0035] Performance testing The inks in the examples and comparative examples were printed on cigarette packages at a printing amount of 15 g / m 2 After printing, it is cured with LED light under light conditions of 395nm wavelength to obtain a QR code, and then the QR code is tested: according to GB / T22771-2008, the light fastness grade is obtained. The higher the light fastness grade, the better the stability of the ink; the adhesion performance of the QR code is tested according to the 100-grid test method to obtain the adhesion grade. The higher the adhesion grade, the better the adhesion performance of the ink.

[0036] Table 1 Performance test results of ink Combining Example 1 and Comparative Examples 1-2, the stability and adhesion performance of the ink in Example 1 are the best. It can be seen that when preparing the ink, the UV monomer is preferably a mixture of 1,6-hexanediol diacrylate and tetrahydrofuran acrylate, which can improve the stability and adhesion performance of the final two-dimensional code ink.

[0037] In combination with Examples 1-3, the stability and adhesion performance of the ink in Example 2 are the best. It can be seen that when preparing the ink, the ratio of the raw materials in Example 2 is the best, so the ink has the best performance.

[0038] Combining Example 2, Example 4 and Example 5, it can be seen that when preparing the ink, when the ratio of 1,6-hexanediol diacrylate to tetrahydrofuran acrylate in the UV monomer is 1:(4-6), the performance of the obtained ink is better.

[0039] Combining Example 4, Example 6 and Example 7, it can be seen that when preparing ink, increasing the ratio of polyurethane resin in UV resin can improve the stability and adhesion performance of the obtained ink.

[0040] Combining Example 6, Example 8 and Example 9, the performance of the ink in Example 6 is the best. It can be seen that when preparing the ink, the UV resin is preferably a mixture of polyester resin and polyurethane resin, which can further improve the stability and adhesion performance of the ink.

[0041] Combining Example 6, Example 10 and Example 11, the performance of the ink in Example 6 is the best. It can be seen that when preparing the ink, the photoinitiator is preferably a mixture of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone, which can further improve the stability and adhesion performance of the ink.

[0042] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A cigarette package anti-counterfeiting two-dimensional code ink, characterized by: The raw materials of the ink include the following components in parts by weight: 2 to 5 parts of pigment, 40 to 70 parts of UV monomer, 3 to 10 parts of UV resin, 6 to 11 parts of photoinitiator, and 0.1 to 1.5 parts of leveling agent; The UV monomer includes a mixture of 1,6-hexanediol diacrylate and tetrahydrofuran acrylate.

2. The anti-counterfeiting two-dimensional code ink for cigarette packages according to claim 1, characterized in that: The weight ratio of 1,6-hexanediol diacrylate to tetrahydrofuran acrylate in the UV monomer is 1:(4-6).

3. The anti-counterfeiting two-dimensional code ink for cigarette packages according to claim 1, characterized in that: The pigment includes vegetable carbon black.

4. The anti-counterfeiting two-dimensional code ink for cigarette packages according to claim 1, characterized in that: The UV resin includes a mixture of polyester resin and polyurethane resin, and the weight ratio of the polyester resin to the polyurethane resin is 1:(0.5-1).

5. The anti-counterfeiting two-dimensional code ink for cigarette packages according to claim 1, characterized in that: The photoinitiator comprises a mixture of trimethylbenzoyl-diphenylphosphine oxide and 2-dimethylamino-2-benzyl-1-(4-piperidinylphenyl)-1-butanone.

6. The anti-counterfeiting two-dimensional code ink for cigarette packages according to claim 1, characterized in that: The leveling agent includes an organic silicon leveling agent.

7. A method for preparing the anti-counterfeiting two-dimensional code ink for cigarette packages according to any one of claims 1 to 6, characterized in that: The following steps are involved: First, the pigment and part of the UV monomer are ground to obtain a grind; then, UV resin, the remaining UV monomer, photoinitiator, and leveling agent are added to the grind, stirred and dispersed for 3-5 hours, and the viscosity of the mixture is tested at 25°C. When the viscosity is 14-17cp, it is filtered to obtain the cigarette package anti-counterfeiting QR code ink.

8. The method for preparing the anti-counterfeiting two-dimensional code ink for cigarette packages according to claim 7, characterized in that: The particle size of the grinding material is less than 300nm and the viscosity is 50-150cp.

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