| 摘要 |
A laser markable material including a laser markable layer, present as a self-supporting layer or as a layer on a support, the laser markable layer comprising an infrared absorbing dye and a infrared absorbing pigment, characterized in that the amount of the infrared absorbing pigment is between 10 ppm and 1000 ppm relative to the total dry weight of the laser markable layer. |
