PORTABLE DUAL COLD PACKS FOR COLD STORAGE AT DIFFERENT TEMPERATURES DEPENDING ON THE DEGREE OF ITCHING AND PAIN

摘要

The present invention relates to a cold pack filled with a phase change material (PCM) that provides a predetermined cold pack temperature exceeding 7°C in a solid state in order to relieve itching or pain while preventing low-temperature burns. A first cold pack part that is attached to the rear of the cold pack part opposite to the front of the cold pack part in contact with the heat insulation part to prevent the cold air from leaking to the outside, and the cold pack part is filled with a first phase change material providing a first cooling temperature. And a second cold pack part filled with a second phase change material providing a second cooling temperature lower than the first cooling temperature, and a first phase change material and a second phase between the first and second cold pack parts It is characterized in that the first cold pack and the second cold pack are separated so that the changing substances are not mixed, and a separate folding unit is installed to fold the first and second cold packs, according to the degree of itchiness and pain. It provides a portable dual cold pack that allows you to cool pack at different temperatures.