| 摘要 |
The signing film has a decorative print that fluoresces when viewed under UV light and forms a security feature at the back of the signing film. The back of the signing film has two back layers, and the decorative print comprising a lacquer is provided between the back layers. The lacquer contains a high viscous binding agent, is mixed with pigments that fluoresces under the UV light, and possesses a small layer thickness after printing and drying operation. |
