| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber member enabling rubber degradation by ultraviolet light to be easily known, and capable of urging an appropriate change.SOLUTION: A rubber member includes a pigmented rubber material. The rubber member includes an ultraviolet absorption transparent ink layer partially disposed on a surface. The pigmented rubber member is pigmented in a deep color. The ultraviolet absorption transparent ink layer is formed in a character shape.SELECTED DRAWING: Figure 1 |
