| 摘要 |
PROBLEM TO BE SOLVED: To obviate the occurrence of unevenness and staining by drying without using a chlorine-base solvent and to prevent the oxidation of a metallic surface in preservation after drying by treating the metallic surface by using an aqueous solution containing a specific amine component and a cyclohexylamine compound respectively at specific retions. SOLUTION: The aqueous solution containing 10 to 10000 ppm, by weight, amine compound expressed by formula I (where R1, R2 and R3 are each hydrogen, a 1-7C alkyl group, a 2-7C alkenyl group, a 1-4C alkanol group, a cycloalkyl group) and 1 to 1000 ppm cyclohexylamine compound expressed by formula II (where R1 and R2 are each hydrogen, a 1-7C alkyl group, cyclohexyl group) is used as the metal treating agent. The amine component is preferably hydoxyl, N,N-diethylhydroxylamine, or the like, and the cyclohexylamine compound is preferably cyclohexylamine, N,N-dicyclohexylmethylamine, or the like. The metal treating agent is preferably dried without rinsing after treating the metal.
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