| 摘要 |
<p>The invention relates to a non-electrical dispensing indicator which is made from a thermochromic material that is applied to a dispensing or thermodispensing apparatus for volatile substances (1). When the dispenser heats up in order to evaporate the volatile substance contained in a device connected to said apparatus (1) and reaches a pre-determined temperature, the indicator, which takes the form of a plastic insert (4) with thermochromic pigments, changes colour and indicates that conditions are suitable for dispensing. The colour change product can comprise a combination of thermochromic and normal paints which are applied to the external surface of the apparatus. In this way, when a pre-determined temperature is reached, the thermochromic paint changes colour and indicates that conditions are suitable for dispensing.</p> |
