| 摘要 |
There is disclosed an ink tank capable of inhibiting penetration of a gas even in an ink storage section made of a resin, having such a flexibility as to easily apply a negative pressure to ink, having an excellent resource protective property and applicable even to a small and inexpensive ink jet recording device having a large degree of freedom in design. In the ink tank for the ink jet recording device having the ink storage section made of a plastic, the ink storage section has a coating layer including a liquid retaining member capable of retaining ink on an inner surface or an outer surface thereof. The liquid retaining member can include a foam material, a fiber material or a gel-like substance. In the ink storage section, the liquid retaining member included in the coating layer including the liquid retaining member capable of retaining the ink on the outer surface thereof includes a moisture adsorbent which adsorbs a moisture.
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