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Timing label, manufacturing method thereof and timing method

A production method and labeling technology, applied in the field of labeling, can solve problems such as consumer criticism and influence of timeliness and credibility, and achieve the effects of accurate timing, simple structure and broad application prospects

Pending Publication Date: 2021-03-30
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, these date and expiry date information can only be used to reflect products with a longer validity period (such as two days or more), and there are currently no appropriate markers for products with shorter timeliness, such as takeaways delivered by restaurants
On the other hand, the above-mentioned method of printing the date of delivery or production on the outer packing box, because it is a mass production method, human factors will seriously affect the reliability of its timeliness, and has been widely criticized by consumers

Method used

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  • Timing label, manufacturing method thereof and timing method
  • Timing label, manufacturing method thereof and timing method
  • Timing label, manufacturing method thereof and timing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Embodiment 1 A kind of timing tag provided by this embodiment adopts a flexible transparent polyimide film (CPI film) with a thickness of about 50 microns as the substrate, and a color-changing layer with a thickness of 300-600 nanometers is formed on the front of the substrate. Mainly made of perovskite material CsPbIBr 2 (Crystal structure such as image 3 As shown), the color-changing layer is covered with a transparent flexible PET film with a thickness of about 50 microns as the packaging insulation film, and the packaging insulation film is also sealed and combined with the substrate, so that the color-changing layer is formed between the packaging insulation film and the substrate. There are multiple microchannels distributed on the packaging insulating film, and the multiple microchannels penetrate the packaging insulating film along the thickness direction, thereby connecting the packaging space with the external environment. The density is 10-3000 pieces / squa...

Embodiment 2

[0097] Example 2 The timing label provided in this example uses aluminum foil or polyvinyl chloride film as the base material, and a color-changing layer with a thickness of about 1-1.5 microns is formed on the front of the base material, and the color-changing layer is mainly composed of particles with a particle size of 3-10 nm. CbBr 3 Quantum dots (crystal structures such as Figure 4 As shown), the color-changing layer is covered with a transparent flexible PET film with a thickness of about 50 microns as the packaging insulation film, and the packaging insulation film is also sealed and combined with the substrate, so that the color-changing layer is formed between the packaging insulation film and the substrate. There are multiple microchannels distributed on the packaging insulating film, and the multiple microchannels penetrate the packaging insulating film along the thickness direction, thereby connecting the packaging space with the external environment. The diameter...

Embodiment 3

[0106] Example 3 A timing label provided in this example uses a PET film with a thickness of about 125 microns as the substrate, and a color-changing layer with a thickness of 300 to 600 nanometers is formed on the front of the substrate. The color-changing layer is mainly composed of the chemical structural formula of formula 1-3 Perovskite materials (crystal structures such as Figure 5 As shown), the color-changing layer is provided with a transparent flexible PET film with a thickness of about 50 microns as the packaging insulation film, and the packaging insulation film is also sealed and combined with the substrate, so that the color-changing layer is encapsulated between the packaging insulation film and the substrate. In the packaging space, there are multiple micro-channels distributed on the packaging insulating film, and the multiple micro-channels penetrate the packaging insulating film along the thickness direction, thereby connecting the packaging space with the e...

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Abstract

The invention discloses a timing label. The timing label comprises a base material, a packaging isolation film, a color-changing material and a protective film, wherein the packaging isolation film and the base material are combined in a sealed mode to form at least one packaging space, and the color-changing material is distributed in the packaging space; more than one micro-channel is distributed on the packaging isolation film, and the protection film covers the packaging isolation film and seals the more than one micro-channel; when the protective film is removed from the packaging isolation film, air in the external environment can enter the packaging space through the one or more micro-channels and make contact with the color-changing material, so that the color of the color-changingmaterial is changed, and timing is started. The invention further discloses a manufacturing method of the timing label and a corresponding timing method. By utilizing the timing label, timing can beconveniently and accurately realized, the cost is low, and the timing label has a wide application prospect in various fields of biology, medicine, daily necessities and the like.

Description

technical field [0001] The invention relates to a label, in particular to a plane printing label with timing function, a manufacturing method and a timing method thereof. Background technique [0002] With the continuous advancement of information technology, the impact of the Internet of Things on human life is becoming more and more profound. Online shopping and ordering meals have gradually become part of the daily life of ordinary people. Among them, food safety is one of the most concerned issues in online shopping. As far as express delivery of catering and fresh food is concerned, consumers hope to have a grasp of the production and delivery time of food. Consumers can only obtain these key information by checking the date of manufacture printed on the outer packaging of the food. On the one hand, these date and expiration date information can only be used to reflect products with a longer validity period (such as two days or more). For products with shorter timelin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F3/02
CPCG09F3/0291G09F2003/0261
Inventor 王斌张东煜马昌期龚超宋晓晓周海霞
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI