| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of inability of neat and accurate recording due to deterioration of the ejection amount or the ejection rate of ink droplets. SOLUTION: An ink-jet recording head comprising a lower plate 1, at least two partition walls 2 disposed away on the upper surface of the lower plate 1, an upper plate 4 disposed on the partition walls 2, and a side plate 7 for closing the internal space provided by the lower plate 1, the pair of the partition walls 2 and the upper plate 4, provided with an ink ejecting hole 8 and an ink supplying hole 5 at least in at least one selected from the group consisting of the lower plate 1, the upper plate 4 and the side plate 7 for supplying an ink into the internal space via the ink supplying hole 5 and pressuring the supplied ink by displacement of the partition walls 2 for jetting the same from the ink ejecting hole 8, wherein at least one selected form the group consisting of the lower plate 1, the partition walls 2, the upper plate 4 and the side plate 7 is bonded by an adhesive 9 of a thermosetting resin containing an inorganic filler, and a metal element and/or an alkaline metal element in the inorganic filler of the adhesive 9 is contained by 0.5 wt.% or less with respect to the total inorganic filler weight based on the oxide equivalent, is provided.
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