| 摘要 |
PURPOSE:To replace a bactericidal lamp consumed by a new one without any delay, by making a color of ink in a first layer faded, when a bactericidal lamp has been used up to a rated life, and making a color of ink in a second layer visible to show the bactericidal lamp has run out. CONSTITUTION:A life indicating label A is attached to a face of a main body 5 of a bactericidal lamp 7. The life indicating label A is made of four layers: a first ink layer 1, a film protector 2 for bactericidal rays, a second ink layer 3 and a transparent adhesive layer 4. When the bactericidal lamp 7 has been used up to a rated life, the color of the first ink layer 1 is faded and the color of the second ink layer 3 becomes visible to show the bactericidal lamp 7 has run out. |
