Time and temperature indicating device
An indicating device, time and temperature technology, applied in thermometers, measuring devices, thermometers with physical/chemical changes, etc., can solve the problems of expensive, polymerized time and temperature indicating devices need to be stored at low temperature, complex structure, etc.
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Embodiment 1
[0048] The structural representation of the time and temperature indicating device 10 of this embodiment can be found in figure 1 , the time and temperature indicating device 10 includes a base layer 100 and an indicating layer 200 . The base layer 100 is a heat-sensitive food packaging bag made of PET. An indication layer 200 is printed on the outside of the base layer 100 . The indicator layer 200 has a color changing area 210 and a reference area 220 . The material of the color-changing area 210 is color-changing ink. Before drying, the preparation raw materials of color-changing ink include 20 parts of polyvinyl butyral (space forming material), 5 parts of stearic acid (filling material), 1 part of Iodine simple substance (guest molecule) and 30 parts of isopropanol (solvent). The reference area 220 is printed with common ink and does not have a color-changing function. After the printing is completed, the color-changing area 210 is orange, and after the solvent in the...
Embodiment 2
[0051] The structural representation of the time and temperature indicating device 10 of this embodiment can be found in image 3 , the time and temperature indicating device 10 includes a base layer 100 , an indicating layer 200 , an adhesive layer 400 and a release layer 500 . The base layer 100 is a self-adhesive made of PET, and an adhesive layer 400 and a release layer 500 are sequentially arranged on one side of the base layer 100 , wherein the material of the release layer 500 is PET. An indication layer 200 is printed on a side of the base layer 100 away from the adhesive layer 400 . The indicator layer 200 includes a color changing area 210 and a reference area 220 . The material of the color-changing area 210 is color-changing ink. In terms of parts by mass, the preparation raw materials of color-changing ink include 30 parts of polyvinyl butyral (space forming material), 10 parts of oleic acid (filling material), 3 parts of iodine simple substance (guest molecule)...
Embodiment 3
[0054] The structural representation of the time and temperature indicating device 10 of this embodiment can be found in Figure 4 , the time and temperature indicating device 10 includes a base layer 100 , an indicating layer 200 , an activation structure 300 , an adhesive layer 400 and a release layer 500 . The base layer 100 is a self-adhesive made of PET, and an adhesive layer 400 and a release layer 500 are sequentially arranged on one side of the base layer 100 . An indication layer 200 is printed on the side of the base layer 100 away from the adhesive layer 400 , and the indication layer 200 includes a discoloration area 210 and a reference area 220 . An activation structure 300 is provided on the side of the indication layer 200 away from the base layer 100 , and the activation structure 300 includes a glue layer 310 and a protection layer 320 . The material of the color-changing area 210 is color-changing ink. Before drying, the raw materials for preparing the color...
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Abstract
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Application Information
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