Patent attributes
Disclosed herein is a liquid vessel including a liquid lead-out portion for directing liquid out and a flexible liquid containing portion formed of a film for containing the liquid, wherein the liquid containing portion includes a first sealing portion having a body portion having a tubular shape formed by adhering both ends of one film to each other, a second sealing portion which includes gore portions having a pair of mountain-shaped folding portions folded at opposed side surfaces of the body portion in a longitudinal direction and a valley-shaped folding portion between the pair of mountain-shaped folding portion and seals an opening in a state in which the liquid lead-out portion is inserted into the opening of the body portion, and a third sealing portion which seals another opening of the body portion, and wherein the mountain-shaped folding portions configuring the gore portions have mountain-shaped maintenance portions which maintain a state in which inner surfaces of facing films at least partially contact each other.
