| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a detergent composition for a glass substrate used for a hard disk with which a glass surface cleaned in a high degree is obtained, to provide a method for cleaning the glass surface by using the detergent, and to provide a method for manufacturing the hard disk. Ž<P>SOLUTION: The detergent composition for the glass substrate used for the hard disk contains an alkali agent (component A), aldonic acids (component B), and water, and is ≥pH10. The aldonic acid is preferably gluconic acid and/or its salt. Furthermore, the detergent composition preferably includes one or more compounds (component C) selected from a group including, benzene sulfonic acid, toluene sulfonic acid, dimethylbenzene sulfonic acid, hydroxybenzene sulfonic acid, and their salts. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
