- TIME-TEMPERATURE INDICATOR FOR TEMPERATURE MONITORING FOR COLD-CHAIN FOOD DISTRIBUTION

摘要

A time-temperature indicator for checking a time-temperature history of a distribution food according to the present invention comprises: a silver nitrate solution; a carboxymethyl cellulose solution; a glass vial wherein the silver nitrate solution is injected and sealing the silver nitrate solution, is separated from the carboxymethyl cellulose solution until broken, and the glass vial is broken when subjected to a pressure greater than a first predetermined pressure; and a plastic case wherein the glass vial and the carboxymethyl cellulose solution are injected and sealed therein, a length is longer than a length of the glass vial, a width and a height are shorter than the length of the glass vial, and the plastic case can be bent or be bent when subjected to a pressure greater than to a second predetermined pressure.