| 摘要 |
PROBLEM TO BE SOLVED: To achieve release of a masking tool together with a masking layer from a part, so that no masking layer remains on the part, when the masking tool is separated from the part after the part is partially surface-treated.SOLUTION: A masking tool is arranged opposed to a portion where surface treatment is prohibited in the presence of a void 11 when partial surface treatment is performed on a part P, and the masking tool is for impregnation molding of a masking layer 21 of a synthetic resin in the void 11, wherein upon impregnation molding of the masking layer 21, an anchor recessed part 12 is formed on an adhesion surface of the masking tool J to the masking layer 21, while a part of the masking layer 21 is incorporated in the anchor recessed part 12. |
