A solid has a reversibly invisible/visible thermochromic internal construction enclosed therein which is composed of a solid made of a transparent resin and a fluorescent internal construction showing the internal structure of the solid enclosed therein, wherein a reversible thermochromic layer containing a reversible thermochromic composition is formed on the surface of the solid, or the transparent resin contains a reversible thermochromic composition.
一种固体具有可逆的不可见/可见热致变色内部结构,它由透明
树脂制成的固体和显示内部结构的荧光内部结构组成,其中固体表面形成含有可逆热致变色成分的可逆热致变色层,或透明
树脂含有可逆热致变色成分。