| 摘要 |
This invention concerns a form (1) which has an integrated card (3) which can be detached from it. A substrate material (2) is glued to the back of the form at least partly covering the area of the card (3). This substrate material (2) has both a substrate layer (21) and a peeling adhesive layer (22) which loses its stickiness upon being detached. The card (3) is a punched product which is held in the form (1) by the substrate layer (21). The peeling adhesive layer (22) has its normal properties with respect to the substrate layer (21)-when separated from it upon detaching the card (3), it (22) stays with the card (3). As the surface layer of the detached card (3), it can be written or printed upon, even if the back of the card is plasticized by a film (23) embedded in the substrate material. The writing or imprint can no longer easily be modified through the peeling adhesive layer (22). This makes the card considerably more tamper-proof than earlier cards. Designing the card as a luggage tag is an interesting application. The invention also concerns a substrate material (2) or a completely integrated multilayer material for a form (1) of the preciously described kind as well as a process for production. |
