Zinc complex, preparation method thereof and application thereof in preparing anti-forgery ink

A compound and selected technology, applied in the direction of zinc organic compounds, inks, applications, etc., can solve the problems of toxic fluorescent agents or binders, low fluorescent color purity, slow drying and other problems, and achieve good fluorescent effects.

Active Publication Date: 2013-03-27
中国印刷科学技术研究所
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the currently used fluorescent inks, they also have their own defects, such as toxic fluorescent agents or linking materials, environmental pollution, low purity of fluorescent colors, and slow drying.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Zinc complex, preparation method thereof and application thereof in preparing anti-forgery ink
  • Zinc complex, preparation method thereof and application thereof in preparing anti-forgery ink
  • Zinc complex, preparation method thereof and application thereof in preparing anti-forgery ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1, preparation of 2-benzimidazole quinoline ligand (L1) shown in formula II

[0036] Weigh 2-methylquinoline (1.43g, 10mmol), o-phenylenediamine (1.08g, 10mmol) and precipitated sulfur (7.68g, 30mmol) at 170-190°C for 12 hours, stop the reaction, and Add 30ml of methanol to terminate the reaction, cool down to room temperature, collect the concentrated reaction solution, load it on silica gel, distill off the solvent under reduced pressure, pass through a silica gel column, and rinse with eluent, which consists of petroleum ether and ethyl acetate. The volume of petroleum ether and ethyl acetate is 10:1, the third component is collected and concentrated to obtain a yellow solid powder L1 with a yield of 46%.δ H (400MHz; CDCl 3 ;Me 4 Si)10.96(1H,s),8.56(1H,d,J=8.1Hz),8.32(1H,d,J=8.6Hz),8.11(1H,d,J=8.5Hz),7.89(2H,t ,J=11.3Hz),7.75(1H,t,J=10.2Hz),7.58(1H,t,J=10.0Hz),7.49(1H,d,J=7.8Hz),7.29-7.33(2H,m ),4.46(3H,s,-CH 3 ).δ C (100MHz; CDCl 3 ;Me 4 Si) 151.1, 1...

Embodiment 2

[0037] Example 2, preparation of 2-benzimidazole-8-methylquinoline ligand (L2) shown in formula II

[0038] Weigh 2,8-dimethylquinoline (1.57g, 10mmol), o-phenylenediamine (1.08, 10mmol) and precipitated sulfur (7.68g, 30mmol) at 170-190 ° C for 12 hours of thermal melting reaction, stop Reaction, while hot, add 30ml of methanol to terminate the reaction, cool down to room temperature, collect the concentrated reaction solution, carry on silica gel, distill off the solvent under reduced pressure, pass through the silica gel column, rinse with eluent, eluent is composed of petroleum ether and ethyl acetate ester composition, the volume of petroleum ether and ethyl acetate is 8:1, the third component is collected and concentrated to obtain yellow solid powder L2, the yield is 48%.δ H (400MHz; CDCl 3 ;Me 4 Si)10.65(1H,s),8.52(1H,d,J=8.6Hz),8.27(1H,d,J=8.6Hz),7.89(1H,d,J=8.4Hz),7.76(1H,t ,J=9.9Hz),7.59(1H,t,J=10.0Hz),7.46(1H,t,J=9.8Hz),7.32(2H,m),2.87(3H,s,-CH 3 ).δ C (100MHz...

Embodiment 3

[0039] Example 3, preparation of 2-benzimidazole-8-ethylquinoline ligand (L3) shown in formula II

[0040] Weigh 2-methyl-8-ethylquinoline (1.71g, 10mmol), o-phenylenediamine (1.08, 10mmol) and precipitated sulfur (7.68g, 30mmol) at 170-190 ° C for 12 hours of thermal melting reaction , stop the reaction, add 30ml of methanol while it is hot to terminate the reaction, cool down to room temperature, collect the concentrated reaction solution, load it on silica gel, distill off the solvent under reduced pressure, pass through a silica gel column, and rinse with eluent, which consists of petroleum ether and Composed of ethyl acetate, the volume of petroleum ether and ethyl acetate is 15:1, the third component is collected and concentrated to obtain yellow solid powder L3, the yield is 39%.δ H (400MHz; CDCl 3 ;Me 4 Si)10.51(1H,s),8.52(1H,d,J=8.5Hz),8.29(1H,d,J=8.5Hz),7.90(1H,d,J=7.4Hz),7.71(1H,d ,J=8.0Hz),7.61(2H,t,J=8.6Hz),7.51(1H,t,J=10.1Hz),7.34(2H,d,J=8.3Hz),3.39-3.45(2H,m ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a zinc complex, a preparation method thereof and an application thereof in preparing anti-forgery ink. The metal complex provided by the invention has an excellent fluorescent effect when being used for ultraviolet fluorescence anti-forgery ink, is colorless in the sun, and deep purple under the radiation of ultraviolet light. The complex almost satisfies the requirements for preparing ultraviolet fluorescence anti-forgery ink. Moreover, the fluorescent agent and the ink material are uniformly dispersed. Therefore, the complex has an extensive application prospect in the printing filed, and can be used for the anti-counterfeiting of high-end products such as bills, currencies, negotiable securities and the like.

Description

technical field [0001] The invention relates to a transition metal complex, in particular to a zinc complex containing 2-benzimidazole quinolines, a preparation method thereof and an application in the preparation of ultraviolet fluorescent anti-counterfeiting ink. Background technique [0002] With the development of the market economy, the types of goods we can come into contact with are becoming more and more abundant. At the same time, there are more counterfeit and shoddy products. In order to protect the goods and safeguard the rights and interests of consumers, businesses use various anti-counterfeiting technologies to combat counterfeiting and shoddy products. Currently used anti-counterfeiting technologies mainly include anti-counterfeiting paper technology, anti-counterfeiting ink technology, anti-counterfeiting printing technology and packaging technology, among which anti-counterfeiting ink technology is an extremely important anti-counterfeiting technical field w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C07F3/06C07D401/04C09D11/10C09D11/50
Inventor 宋盛菊褚庭亮欧阳芸王晓芳李志杰李家祥
Owner 中国印刷科学技术研究所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap