| 摘要 |
PROBLEM TO BE SOLVED: To provide an activation solution which prevents irregular corrosion (dot-like irregularities) of a silver mirror film of a base material obtained by using the activation solution, is excellent in preservation stability of the activation solution and is capable of giving hydrophilicity to the surface with the silver mirror film deposited thereon stably for a long time immediately after the activation solution is prepared in a method for depositing the silver metal film on the surface of the base material. SOLUTION: In the method for depositing a silver mirror film on the surface of a base material, the activation solution to activate the surface of the base material with the silver mirror film deposited thereon contains an acid other than hydrochloric acid, and contains a stannous compound and a stannic compound. COPYRIGHT: (C)2006,JPO&NCIPI
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