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Multilayer color-coded micromarker capable of encoding information and its preparation method

An information coding and marker technology, applied in the field of multi-layer color code micro markers and preparation, can solve the problems of ambiguous marking pattern, easy manual replacement of labels, complicated detection process, etc. The effect of low process cost

Active Publication Date: 2021-09-28
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Label traceability technology has disadvantages such as label loss, record travel, ambiguous mark pattern, and easy manual replacement of labels. Fingerprint traceability technology, organic matter traceability technology, iris feature traceability technology, etc. have long detection time and complicated detection process, so they cannot be scaled up. It is not easy to popularize, and DNA traceability technology has the advantages of easy typing, good repeatability, simple and fast detection methods, etc., but its price is expensive and its application range is limited

Method used

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  • Multilayer color-coded micromarker capable of encoding information and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment provides an information-encoded multi-layer color-coded micromarker, which includes micro-nano particles with more than three film layers, and the film layers include a resin matrix and dopants uniformly distributed in the resin matrix , the dopant includes one or more of fluorescent substances, magnetic substances or substances that can be attracted by magnetic substances, and pigments. Type and color encode information. Control the thickness and uniformity of different film layers, doping different functional substances such as magnetic materials or substances that can be attracted by magnetic substances, fluorescent agents, different colorants, etc., to obtain multi-layer uniform and color-coded micro-markers, Adjacent film layers cannot have the same color.

[0032] The above-mentioned multi-layer color-coded micro-marker is a colored mark with a multi-layer structure with specific functions realized by simulating the DNA coding mode by means of lay...

Embodiment 2

[0045] This embodiment provides a method for preparing an information-encoded multilayer color-coded micromarker, especially for preparing the information-encoded multilayered color-coded micromarker of Example 1, such as figure 1 shown, including the following steps:

[0046] S1. Add diluents or curing agents to various resin raw materials to adjust the viscosity to obtain various resin matrices;

[0047] S2. Take a small amount of the resin matrix respectively, add dopant to each small amount of resin matrix and grind at high speed to ensure that the particles are uniformly dispersed and equal in size to obtain various masterbatches. The dopant includes fluorescent One or more of substances, magnetic substances or substances that can be attracted by magnetic substances, and pigments;

[0048] Preferably, the fluorescent substances include but are not limited to fluorescein isothiocyanate, tetraethylrhodamine, tetramethylrhodamine isothiocyanate, phycoerythrin, europium-cont...

example 1

[0059] A method for preparing an information-encoded multilayer color-coded micromarker comprises the following steps:

[0060] Mix epoxy component A and component B (curing agent) with a volume ratio of 1:1 evenly, then add xylene in the same proportion to adjust the viscosity of the matrix. Take a small amount of prepared matrix resin, add 5% red pigment and 5% magnetic particles, stir at a high speed and then grind to obtain a uniform color masterbatch. Mix the color masterbatch with the rest of the base to prepare a red base for later use.

[0061] According to the same method, prepare substrates of yellow, black, green and other colors for later use.

[0062] Mix epoxy component A and component B (curing agent) with a volume ratio of 1:1 evenly, then add xylene in the same proportion to adjust the viscosity of the matrix. Take a small amount of prepared matrix resin, add 5% fluorescent substance and 5% magnetic particles, stir at high speed and then grind to obtain a un...

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Abstract

The invention discloses a multi-layer color-coded micro-marker capable of encoding information and a preparation method thereof. In the technical field of traceability marking, the multi-layered color-coded micro-marker includes micro-nano particles with more than three film layers, and the film layer includes The resin matrix and the dopant uniformly distributed in the resin matrix. The dopant includes one or more of fluorescent substances, magnetic substances or substances that can be attracted by magnetic substances, and pigments. Information is encoded on film thickness and / or dopant type and color. The multi-layer color-coded micromarker of the present invention has the advantages of complete marking information, easy encoding and decoding, long-term coexistence with products, easy collection and low price.

Description

technical field [0001] The invention relates to the technical field of traceability marking, in particular to an information-encoded multi-layer color-coded micro-marker and a preparation method. Background technique [0002] With the rapid development of information technology, information technology is gradually changing people's traditional living habits. Traditional record traceability can no longer meet the needs of social development. On the one hand, counterfeit and shoddy products are rampant in the market, and it is very important to trace the responsibility of its product traceability On the other hand, public security in today's world needs to be improved. In order to effectively prevent illegal activities, countries all over the world attach great importance to product safety control, especially product flow control and safety inspection. In order to meet the needs of the product information age, strengthen the safety management of civil goods in our country, sol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/06
CPCG06K19/06037G06K19/0614
Inventor 曹鼎董迎迎曹振
Owner BEIJING UNIV OF CHEM TECH
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