초록 ▼

Temperature control is carried out with a temperature control material comprising a temperature indicator whose developed color density differs according to temperature, which is irreversible at environmental temperature, which changes its color according to crystal or non-crystal, or phase separati

Temperature control is carried out with a temperature control material comprising a temperature indicator whose developed color density differs according to temperature, which is irreversible at environmental temperature, which changes its color according to crystal or non-crystal, or phase separation or non-phase separation, and whose glass transition temperature is set to a temperature higher than control temperature, by irradiating the temperature indicator with light having a wavelength absorbed by a color developed by the temperature indicator and detecting the intensity of the reflected light or transmitted light. Accordingly, even when the temperature becomes higher than control temperature temporarily, temperature control can be carried out smoothly thereafter.

대표청구항 ▼

1. A temperature control method comprising:the step of setting the glass transition temperature of a temperature indicator whose developed color density differs according to temperature, which becomes irreversible at outside temperature and which changes its color according to crystalline or non-cry

1. A temperature control method comprising:the step of setting the glass transition temperature of a temperature indicator whose developed color density differs according to temperature, which becomes irreversible at outside temperature and which changes its color according to crystalline or non-crystalline state, or phase separation or non-phase separation, to a temperature higher than a control temperature; the step of carrying out temperature control by irradiating the temperature indicator with light having a wavelength absorbed by a color developed by the temperature indicator and detecting the intensity of the reflected light or transmitted light; and the step of giving an alarm that the temperature indicator is exposed to a temperature higher than its glassed transition temperature by the color development of the temperature indicator in a shorter time than the time for temperature control.