| 摘要 |
<p>A molding which is reversibly discolorable in accordance with the conditions of water-absorbing and drying thereof, wherein the molding consists of a layer having open micro-voids (hereinafter referred to as a ''scatter layer'') and a layer having a hue different from that of the scatter layer (hereinafter referred to as a ''color-developing layer''), the scatter layer constitutes at least a part of the outer surface of the molding and the color-developing layer constitutes the remaining part.</p> |
