| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a three-dimensional image by simple structure by installing a metal sheet material having a small uneven pattern which changes a light reflection angle on the surface and a transmission means which has an optical pattern and transmits light and giving a three-dimensional visual expression by obtaining the reflected image of the pattern. SOLUTION: In a corrosion resistant alloy-plated steel sheet 2, a thin steel sheet 3 is immersed in a molten zinc-aluminum alloy plating bath to form a plated layer 4. A spangle pattern is formed in the plated layer 4, on the surface of the steel sheet, minutes crystal surfaces different in inclination angles are provided, and reflected light diffuses in different directions. An intermediate film 5 is mounted on the steel sheet 2, and a film with an optional pattern 10 printed is mounted on the film 5. The film 5 has a transparent adhesive function with both sides of a transparent film 8 coated with an adhesive 9. The film 6 is formed so that a surface with the pattern 10 printed on a transparent resin film 7 is arranged on the inner layer side.</p> |
