| 摘要 |
PROBLEM TO BE SOLVED: To provide a forgery prevention label having a pressure-excitation type fluorescent ink layer that emits light by pressure on a base sheet, which prevents degradation in the pressure-excitation type fluorescent ink layer even in the presence of moisture and thereby, which has high reliability.SOLUTION: The forgery prevention label includes a pressure-excitation type fluorescent ink layer disposed on a base sheet, and a steam barrier layer that includes an inorganic organic composite structure containing metal atoms, covering the pressure-excitation type fluorescent ink layer. The inorganic organic composite structure has excellent steam barrier performance. As the steam barrier layer covers the pressure-excitation type fluorescent ink layer, the barrier layer prevents the pressure-excitation type fluorescent ink layer from contacting with moisture, and thereby protects and prevents the pressure-excitation type fluorescent ink layer from degradation, which increases reliability of the label.SELECTED DRAWING: Figure 1 |
