| 摘要 |
PROBLEM TO BE SOLVED: To provide an anti-peeling print capable of preventing reuse of precious print in a manner where, when the sheet is to be peeled, the sheet is broken during peeling and the precious print is peeled at multi layers independently from producing step of sheet and property of substrate with a construction of printing parallel lines and concave-convex shape parallel lines formed on the substrate.SOLUTION: On one surface of a substrate, convex shape parallel lines formed by press machining and first print parallel lines consisting of print ink are formed. On the other surface, second print parallel lines consisting of the same print ink and having different angle from the first print parallel lines. An anti-peeling print region having unbalanced binding strength between fibers is formed by forming print parallel lines having different angle at a region having different fiber gap state due to formation of the convex shape parallel lines.SELECTED DRAWING: Figure 1 |
