This invention relates to indicating devices, such as time-temperature indicators based on lateral diffusion of a vapor of a solid and/or liquid mobile phase (e.g., a sublimeable dye or an activator) through a non-porous stationary phase, such as a thin layer of a polymeric material. The lateral diffusion of the mobile phase creates a noticeable boundary in the stationary phase whose movement depends upon processes, such as time and temperature.
本发明涉及指示装置,如基于固体和/或液体流动相(如可升华
染料或活化剂)的蒸汽通过无孔固定相(如聚合物材料薄层)的横向扩散的时间-温度指示器。流动相的横向扩散在固定相中形成一个明显的边界,其移动取决于时间和温度等过程。