Pressure atmosphere temperature management method and a reduced-pressure atmosphere temperature management material

摘要

To provide a reduced-pressure atmosphere temperature management material that can be reduced as much as possible in a reduced-pressure atmosphere and atmospheric pressure under an atmosphere of discoloration temperature of challenges temperature-sensitive color-changing layer. A content of the heat-fusible substance 22 granular or powder melts at the melting temperature corresponding to the heating temperature to be detected under a reduced pressure atmosphere A1 A pressure atmosphere temperature management material changes color in response to the hot melt thermochromic layer 12 is disposed, the heat fusible material 22, which is a 5 ℃ at most, the difference between the melting temperature and the said vacuum atmosphere and atmospheric pressure under 12 within the thermochromic layer is. [Selection] Figure Figure 1