| 摘要 |
PROBLEM TO BE SOLVED: To provide a water-repellent, oil-repellent object having favorable abrasion resistance and water repellency/oil repellency and capable of maintaining the water repellency/oil repellency over an extended period.SOLUTION: The provided water-repellent, oil-repellent object possesses, on the surface thereof, multiple independent recessed portions 18 in a state where the ratio of the width A of the recessed portion 18 at a position commensurate with 1/2 of the depth D of the recessed portion 18 with respect to the width B of the portion other than the recessed portion 18 at the same position (protruding portion 16) (A/B) is 3 or higher. |
