| 摘要 |
PURPOSE: A copy confirming sticker is provided to effectively manage documents for which a strict security is required by being composed of a photosensitive layer and a protective layer. CONSTITUTION: A copy confirming sticker is composed of an adhesive layer, a photosensitive layer, and a protective layer. The adhesive layer allows copy confirming sticker to be attached on documents or drawings. The colors or phases of photosensitive layer are changed by light radiated to the documents or drawings. The protective layer prevents the damage of the photosensitive layer. |
