Patent ID: 7473302
Filing Date: 2009-01-06
Classification: B41J

Abstract:
1. A liquid housing container having an interior for containing a liquid to be ejected from an ink-jet print head, an opening communicating between the interior and an exterior being outside the interior, and a gas-liquid separation membrane located at the opening, and the gas-liquid separation membrane allowing a gas to pass through while limiting passage of a liquid, the liquid housing container being constructed to discharge the gas in the interior to the exterior by making a difference in pressure between the interior and exterior, wherein the gas-liquid separation membrane is a resin film including a fibrous area comprising fibrous portions and an annular bundling area which bundles ends of the fibrous portions and which is closed so as to surround the fibrous area, wherein the fibrous portions are arranged in substantially one direction, and wherein the opening has a cross section comprising a minor axis and a major axis, and wherein a direction in which fibers in the gas-liquid separation membrane located at the opening is substantially parallel to a direction of the minor axis of the opening.