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A non-reproducible anti-counterfeiting label based on inkjet printing and its preparation method

An anti-counterfeiting label and inkjet printing technology, applied in the field of anti-counterfeiting labels, can solve the problems of high-cost products, easy to be copied, etc., and achieve the effects of low cost, adjustable capacity, simple and reliable process

Active Publication Date: 2020-09-01
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An important reason for the proliferation of counterfeit products is: the contradiction between the security level of anti-counterfeit labels and the cost of producing labels
In other words, high-level non-reproducible labels are more secure, but the cost is too high to spread to a large number of products; while ordinary labels are low in cost, but easy to be copied

Method used

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  • A non-reproducible anti-counterfeiting label based on inkjet printing and its preparation method
  • A non-reproducible anti-counterfeiting label based on inkjet printing and its preparation method
  • A non-reproducible anti-counterfeiting label based on inkjet printing and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A quantum dot ink based on inkjet printing, the specific steps are:

[0028] Decane (boiling point 174 ° C), toluene dewatered and purified for use.

[0029] Red rod-shaped ZnSe / ZnS core-shell quantum dots with oleylamine oleic acid ligands were added to decane at a mass fraction of 2 wt%, with a diameter of 5 nm and a length of 8 nm, shaken until uniformly dispersed, and filtered for use.

[0030] A preparation of a non-reproducible anti-counterfeit label based on inkjet printing, specifically:

[0031] Dissolve polymethyl methacrylate PMMA powder in toluene after dehydration (8mg / ml), stir at 60°C for 2h, and spin-coat it on a glass substrate at a speed of 2000 rpm, then anneal at 120°C for use.

[0032] The configured quantum dot ink was sprayed onto the modified glass substrate at 90 pl at a speed of 2 m / s, and dried naturally.

Embodiment 2

[0034] Cyclodecane (boiling point 201°C), purified from toluene and dewatered for use.

[0035] Red rod-shaped ZnSe / ZnS core-shell quantum dots with oleylamine oleic acid ligands were added to decane at a mass fraction of 2 wt%, with a diameter of 5 nm and a length of 8 nm, shaken until uniformly dispersed, and filtered for later use.

[0036] The PMMA powder was dissolved in toluene after water removal (8 mg / ml), stirred at 60°C for 2h, and spin-coated on a glass substrate at 2000 rpm, then annealed at 120°C for use.

[0037] The configured quantum dot ink was sprayed onto the modified glass substrate at 90 pl at a speed of 2 m / s, and dried naturally.

Embodiment 3

[0039] Decane (boiling point 174 ° C), toluene dewatered and purified for use.

[0040] Red rod-shaped ZnSe / ZnS core-shell quantum dots with oleylamine oleic acid ligands were added to decane at a mass fraction of 2 wt%, with a diameter of 5 nm and a length of 8 nm, shaken until uniformly dispersed, and filtered for use.

[0041] A preparation of a non-reproducible anti-counterfeit label based on inkjet printing, specifically:

[0042] The polystyrene PS powder was dissolved in toluene after water removal (8 mg / ml), stirred at 60°C for 2 hours, and spin-coated on a glass substrate at a speed of 2000 rpm, then annealed at 120°C for use.

[0043] The configured quantum dot ink was sprayed onto the modified glass substrate at 90 pl at a speed of 2 m / s, and dried naturally.

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Abstract

The invention belongs to the technical field of anti-counterfeiting label materials, and particularly relates to a non-copyable anti-counterfeiting label based on inkjet printing. The preparation method of the non-copyable anti-counterfeiting label comprises ink preparation and substrate processing of the anti-counterfeiting label. The preparation method specifically comprises the steps that S1, ink containing anti-counterfeiting materials is prepared; S2, surface modification is carried out on an anti-counterfeiting label substrate; and S3, the prepared anti-counterfeiting material ink is printed as required on the modified substrate, and drying and forming of a film are carried out. The strategy for preparing the anti-counterfeiting label has simple and reliable process, low costs, highmaterial utilization rate, environmental protection, non-copyable, adjustable anti-counterfeiting grade capacity, good compatibility with anti-counterfeiting materials and substrates and colorizationand patterning at the same time, and is beneficial to popularization and industrialization of the non-copyable anti-counterfeiting labels.

Description

technical field [0001] The invention belongs to the technical field of anti-counterfeit labels, in particular to a non-replicable anti-counterfeit label based on inkjet printing. Background technique [0002] Counterfeiting is a global problem that poses a security threat and causes significant economic loss to individuals, businesses and society. Over the past few decades, counterfeiting has spread from everyday consumer goods to pharmaceuticals and high-tech products. While most products are protected by anti-counterfeiting technology, the global economic loss of counterfeit products is increasing every year and is estimated to reach $1.7 trillion in 2015. An important reason for the proliferation of counterfeit products is the contradiction between the security level of anti-counterfeit labels and the cost of producing labels. In other words, high-level non-reproducible labels are more secure, but the cost is too high to spread to a large number of products; while ordin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M3/14B41M5/00C09D11/30C09D11/38G09F3/02
CPCB41M3/142B41M5/0047C09D11/30C09D11/38G09F3/02
Inventor 李福山刘洋胡海龙杨开宇徐中炜郭太良
Owner FUZHOU UNIV