Container

A container that is to contain a liquid and is to be used in a liquid dispenser for ejecting the liquid from the container containing the liquid, comprising:

• a containing portion that has a bag shape and is to contain the liquid;
• and
• an ejecting portion for ejecting the liquid to the outside, the ejecting portion being provided so as to protrude from the containing portion and is in fluid communication with the containing portion,
• wherein the containing portion and the ejecting portion are formed of one folded flexible resin sheet or a plurality of flexible resin sheets laid over one another,
• a peripheral portion of the folded resin sheet or laid resin sheets is formed inseparable,
• a cross-sectional area of the ejecting portion in a direction perpendicular to an axial direction of the ejecting portion is set to be narrower than that of the containing portion,
• an ejection port is provided at a leading end of the ejecting portion,
• the liquid is ejected from the ejection port as the containing portion deforms based on an external force, and
• the containing portion has:
• in a region bordering the ejecting portion, a transitional portion whose cross-sectional area in the direction perpendicular to the axial direction of the ejecting portion smoothly decreases from the containing portion to the ejecting portion;
• a recessed portion that expands in a fan shape around a center of the transitional portion and is recessed in a thickness direction of the containing portion;
• and a protruding portion that vertically divides the transitional portion and externally protrudes as viewed in a cross-section in the direction perpendicular to the axial direction of the ejecting portion.