Cold-chain logistics temperature indicating structure

• Main Author: JIN ZHEN
• Format: Patent
• Language: English
• Published: 09.12.2015
• Subjects: MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PHYSICS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The invention provides a cold-chain logistics temperature indicating structure which comprises a substrate layer, a temperature indicating layer and a protective layer. The substrate layer is the bearing subject of a temperature indicating temperature scale. The temperature indicating layer is arranged above the substrate layer. The protective layer covers the upper surface of the temperature indicating layer. The temperature indicating layer comprises a number of temperature-sensitive coloration layers. The temperature-sensitive coloration layers are successively coated on the upper surface of the substrate layer. Each temperature-sensitive coloration layer is corresponding to different discoloration temperatures. The color of each temperature-sensitive coloration layer is different after discoloration. The specific color of each coloration layer can be visually seen through the protective layer, and then the temperature of an item can be derived based on the color. The temperature-sensitive coloration layer corresponding to the maximum temperature uses a permanent discoloration temperature-sensitive paint, and permanently remains a coloration state after temperature rise and discoloration. Whether chain scission occurs in a cold-chain transportation process can be visually determined, and then whether the cold-chain item is still in a normal state is determined.