To provide a washing method which gives a very little burden to the environment by using a washing solution having a pH value of below 13 and a temperature of 50°C or lower for removing foreign substances existing on a glass substrate before the formation of a metallic film and is not affected by the deterioration of the washing solution caused by the absorption of carbon dioxide in atmosphere in manufacturing a magnetic recording medium by using the glass substrate, and a device for the washing.
A washing and drying process of the glass substrate and a process for forming the metallic film on the glass substrate are included. The washing is made with a liquid solution containing at least phosphate as the washing solution for the washing process.
TAKAHARA YOICHI
WATANABE MASAHIRO
