A cold chain storage and transportation monitoring label based on nano temperature-sensitive color-changing materials

A temperature-sensitive color-changing and labeling technology, which is applied to identification devices, instruments, stamps, etc., can solve the problems of narrow application range, poor mechanical properties, and high price, and achieve the effect of high technical threshold
CN108133659BActive Publication Date: 2021-04-09苏州善恩纳米功能材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
苏州善恩纳米功能材料科技有限公司
Publication Date
2021-04-09

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Abstract

The invention discloses a method for manufacturing a cold chain storage and transportation monitoring label based on a nano temperature-sensitive color-changing material. It comprises the following steps: 1) preparing a magnetically responsive photonic crystal; 2) ultrasonically dispersing the magnetically responsive photonic crystal prepared in 1) in a temperature-sensitive dispersion liquid; 3) sealing the dispersion liquid in 2) in a thin container or 4) Under the condition of applying a special magnetic field, make the temperature-sensitive liquid film present the pattern and color; 5) Place it in the refrigerator to fix the pattern and color, and obtain the cold chain temperature label. The label will not produce color changes within the sensitive temperature, and the color and pattern will change beyond the sensitive temperature, and it is irreversible. The invention has the advantages of high sensitivity, high reliability, high anti-counterfeiting and high integration.
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Description

technical field

[0001] The invention relates to the field of new materials and indicating products. Background technique

[0002] Vaccines need strict cold chain storage and transportation during the circulation process, otherwise they will lead to deterioration and failure. The primary risk of inoculation of vaccines that have not been stored and transported in the cold chain at 2°C-8°C is ineffective immunity. Similar incidents have drawn widespread attention to whether frozen or refrigerated foods or pharmaceuticals comply with relevant standards (DB31 / T388-2007) in the supply chain. If consumers can know whether a single product that needs to be frozen or refrigerated is out of specification like reading the production date and shelf life, it will undoubtedly enhance consumers' confidence in the quality assurance of the product, and at the same time, it can also avoid uneven temperatures inside refrigerators and cabinets. accident. Therefore, it is absolutely necessary...

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
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