Abstract: A laminated body includes an innermost layer including a sealant formed of a polyethylene-based resin and a reinforcing layer formed of a polyethylene-based resin. The reinforcing layer is formed of an unstretched polyethylene-based resin. A packaging bag includes a bottom member folded in half along a fold line. At least the bottom member of the packaging bag is formed of the laminated body.

Abstract: A packaging bag with a spout including a container main body accommodating a content, and a spout member for pouring out the content inside the container main body. The spout member has a base portion attached to the container main body, and a spout tube portion having a flow channel through which the content is poured out formed therein. The container main body is made using a polyethylene film. The spout member is a polyethylene molded body.

Abstract: A packaging bag has a bottom member folded in half along a folding line and sandwiched between two body members. Body seal portions with surfaces of the body members joined along left and right circumferential edge portions of the packaging bag are formed on a side above the folding line. A bottom seal portion with an inner surface of the bottom member joined to the inner surfaces of the body members is formed on a side below the folding line. An unsealed portion surrounded by the body seal portions and the bottom seal portion accommodates a content. Resin layers of the body members and the bottom member are formed of a polyethylene-based resin film. Boundary portions between the bottom seal portion and the unsealed portion have a convex shape toward the upper side of the packaging bag near a part in contact with the body seal portions.

Abstract: This laminate has an inner layer formed of a polyethylene-based resin, an outer layer formed of a polyethylene-based resin, and a barrier layer laminated between the inner layer and the outer layer. The inner layer is formed as a sealant layer that is an innermost layer of the laminate, and the barrier layer is laminated in contact with an outer surface of the inner layer. Accordingly, it is possible to provide a laminate and a package which are formed of a mono-material and have a barrier property.