| 摘要 |
PROBLEM TO BE SOLVED: To provide a preservation liquid adapted for reducing silicon dissolution in a recording head having an ink channel formed of silicon material, and suppressed in the production of an aggregate containing a color material even after ink is introduced into the ink channel.SOLUTION: An aqueous preservation liquid used in an ink jet type recording head having an ink cannel formed at least partially of silicon material, and adapted to charge the ink cannel when no ink is charged, is characterized by containing alumina hydrate.SELECTED DRAWING: Figure 1 |
