Ink-jet recording apparatus
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsNoriaki Satoh, Junichiro Sugimoto
Life of this patent
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Abstract
An ink-jet recording apparatus has an ink passage into which a water-based ink or a preservation solution is filled. The ink passage employs a rubber member formed from a rubber in which a butyl rubber polymer serving as a base polymer, zinc oxide serving as a vulcanization agent, and a thiourea-based compound serving as a vulcanization accelerator are employed. Each of the water-based ink and the preservation solution comprises water and a water-soluble organic solvent. The ink and the preservation solution contain water in an amount of 70 wt. % to about 85 wt. % with respect to the total weight of the water-based ink and the preservation solution, respectively.
Claims9
An ink-jet recording apparatus comprising:
- an ink passage through which at least one of a water-based ink and a preservation solution flows;
- and
- a rubber member in the ink passage, said rubber member being formed from a rubber in which a butyl rubber polymer serving as a base polymer, zinc oxide serving as a vulcanization agent, and a thiourea-based compound serving as a vulcanization accelerator are employed wherein the thiourea-based compound is ethylene thiourea, diphenylthiourea, or dilaurylthiourea,
- wherein the water-based ink includes at least a coloring agent, water and a water-soluble organic solvent, an amount of water being about 70 wt. % to about 85 wt. % with respect to the total weight of the water-based ink, and
- wherein the preservation solution includes at least water and a water-soluble organic solvent, an amount of water being about 70 wt. % to about 85 wt. % with respect to the total weight of the preservation solution.
Dependencies are inferred from the claim text.