| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of low gloss when using nickel sulfate in an alkaline zinc-nickel alloy plating liquid.SOLUTION: An alkaline zinc-nickel alloy plating liquid comprises hydroxycarboxylic acid or a salt thereof and a water-soluble reactive product of (a) nicotinic acid and (b) at least one compound chosen from the group consisting of halogenated hydrocarbon, alkylene oxide, epihalohydrin and halogen ether, and does not use nickel sulfate as a nickel source. |
