SHEET FOR COPY PREVENTION INFORMATION RECORDING AND COPY PREVENTION INFORMATION RECORDING SHEET

To provide a sheet for copy prevention information recording and a copy prevention information recording sheet which make predetermined information to be recorded impossible to copy so as to ensure robustness without increasing the number of formation layers and make it possible to visually confirm...

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Bibliographische Detailangaben
1. Verfasser: WATANABE NAOTAKA
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a sheet for copy prevention information recording and a copy prevention information recording sheet which make predetermined information to be recorded impossible to copy so as to ensure robustness without increasing the number of formation layers and make it possible to visually confirm the recording of the copy prevention object information.SOLUTION: A copy prevention layer 13 is formed by printing by using infrared transmitting ink in the area where the copy prevention object information on a base material 12 is recorded and a laser recording layer 15 of a resin having a laser absorbing member is formed on the base material 12 including the copy prevention layer 13 via a bonding layer 14. At least the area on the copy prevention layer 13 of the laser recording layer 15 is irradiated with a laser beam to record copy prevention object information.SELECTED DRAWING: Figure 1 【課題】記録される所定の情報を複写不能とする複写防止情報記録用シート及び複写防止情報記録シートに関し、形成層を増やさずに堅牢性を確保し、複写防止対象情報の記録を目視で確認可能とすることを目的とする。【解決手段】基材12上の複写防止対象情報が記録される領域に、赤外線透過インキを用いて印刷により複写防止層13が形成され、複写防止層13を含む基材12上にレーザ吸収部材を有する樹脂のレーザ記録層15が貼着層14を介して形成されるものであり、少なくとも当該レーザ記録層15における複写防止層13上の領域にレーザ光を照射することにより複写防止対象情報が記録される構成とする。【選択図】図1