Patent ID: 7600865
Filing Date: 2009-10-13
Classification: B41J

Abstract:
1. An ink-jet recording apparatus comprising: an ink passage through which at least one of a water-based ink and a preservation solution flows; a rubber member in said ink passage, said rubber member being formed from a rubber in which about 2 parts by weight to about 3 parts by weight of an organic peroxide and about 4 parts by weight to about 5 parts by weight of zinc oxide, each serving as a vulcanization agent, are employed per 100 parts by weight of a rubber base polymer; wherein said water-based ink includes at least a coloring agent, water and a water-soluble organic solvent, and has a dynamic surface tension at a lifetime of 100 ms of about 35 mN/m to about 45 mN/m as measured by means of a maximum bubble pressure method at a measurement temperature of 25° C., and wherein said preservation solution includes at least water and a water-soluble organic solvent, and has a dynamic surface tension at a lifetime of 100 ms of about 30 mN/m to about 35 mN/m as measured by means of a maximum bubble pressure method at a measurement temperature of 25° C.