Composite liquid agent package and method for manufacturing same, and kit for preparing multicomponent liquid composition using the composite liquid agent package and method for manufacturing same

A composite liquid agent package comprising a plurality of liquid agent housing portions and a binding portion, all of the plurality of liquid agent housing portions being bound together by the binding portion for integration, wherein

• each of the plurality of liquid agent housing portions includes
• a pouch constituted by a heat-sealable laminated film or heat-sealable laminated sheet including at least an inner layer composed of a sealant and an outer layer composed of a sheathing material, the pouch having one end section and an opposite end section which are sealed sections formed by heat-sealing ends of the heat-sealable laminated film or heat-sealable laminated sheet;
• and
• a liquid agent held within the pouch airtightly and liquidtightly,
• the one end section is sealed so that it can be opened by applying a pressing force on the liquid agent filled in the pouch,
• the liquid agents held in the plurality of liquid agent housing portions are the same with or different from each other, and
• at an extremity of each of the opposite end sections of the plurality of liquid agent housing portions, a part of the sealant constituting the inner layer of the heat-sealable laminated film or heat-sealable laminated sheet constituting the liquid agent housing portion is extended outwardly of an extremity of the outer layer while keeping integral with a remaining part of the sealant to form an extended-out sealant, and the extended-out sealants are fusion-bonded together and integrated thereby to form a fused sealant, which constitutes the binding portion or a main part thereof.