Described herein are recyclable films with an outer surface comprising a polar polymer, such as polyamide, an inner surface comprising a sealant, and a polar polymer compatibilizer located between the polar polymer and the sealant. Preferably the outer surface is an outer layer of biaxially oriented polyamide and the inner surface is a multilayer inner film comprising the sealant and the compatibilizer.

A method for manufacturing a sheet material container where the sheet material container includes one or a plurality of sheet members including a main-body forming sheet member that has an outer film layer and an inner film layer which are mutually stacked, a containing region that accommodates contents, and a container body that is configured from the main-body forming sheet member and that surrounds the containing region, and the main-body forming sheet member having a main-body sealing portion, which is an attached region between the outer film layer and the inner film layer, and a non-attached region where the outer film layer and the inner film layer are partially not attached, and further having a filling portion where a filler is enclosed between the layers of the outer film layer and the inner film layer in the non-attached region.

To provide a spouted pouch with a simple structure and improved self-standing ability of the pouch body. The spouted pouch 10 is configured to dispense a liquid content from a spout 60 attached to a side face of a pouch body 20 in a state placed with a pouch bottom 20a down. The pouch body 20 further includes a first shape-controlling seal portion 24 formed by heat sealing a first film 30 and a side film 40 together at a location on an inner side of a first side seal 23a in the left-right direction. The first shape-controlling seal portion 24 has an area located in a region between an upper half of a spout fixture portion 32 and the first side seals 23a, and does not have an area located below the center in the up-down direction of the spout fixture portion 32.

A container includes a container main body that is composed of a main-body forming sheet member and surrounds a containing portion, wherein the container main body includes a first surface portion, a second surface portion that is arranged so as to face the first surface portion with the containing portion being arranged therebetween, and a gusset portion which connects the first surface portion and the second surface portion to each other. The gusset portion is provided with a discharge port that discharges a contents from the containing portion. The main-body forming sheet member includes a main-body sealing portion in which a plurality of film layers are attached to each other, a non-attached region in which the plurality of film layers are partially non-attached to each other, and a filling portion in which a filler can be enclosed between layers of the plurality of film layers in the non-attached region.

A sheet member container having one or more sheet members including a main-body forming sheet member in which a plurality of film layers including an inner film layer and an outer film layer are stacked; a containing portion that accommodates contents; a container main body including the main-body forming sheet member, and surrounding the containing portion; and a peripheral edge sealing portion in which the one or more sheet members are folded along a folding line, and peripheral edge portions of the one or more sheet members are attached to each other.

The present disclosure is directed to a flexible pouch. In an embodiment, a flexible pouch is provided and includes opposing flexible laminates sealed along a common peripheral edge to form a storage compartment. Each flexible laminate has at least three layers comprising (A) a seal layer, (B) an outermost layer, and (C) an adhesive layer between the seal layer and the outer layer. The adhesive layer comprises a solvent-free polyurethane adhesive composition. An alcoholic beverage is present in the storage compartment. The flexible pouch has a solvent residue less than 1.0 mg/m.sup.2, and a bond strength greater than 200 gm/15 mm after a 60-day liquor resistance test.

A sheet member container including one or more sheet members, including a main-body forming sheet member having an outer film layer and an inner film layer laminated on each other. The sheet member container has a containing portion that accommodates contents, a container main body including the main-body forming sheet member, and a peripheral edge sealing portion in which the one or more sheet members are folded along a folding line.

The present disclosure provides for a multilayer film having a sealant layer and a first layer, where the first layer is formed from a first polyolefin composition, and a laminate that includes the multilayer film. The first polyolefin composition of the first layer consists essentially of a high density polyethylene (HDPE) resin and a propylene-ethylene copolymer thermoplastic elastomer (TPE). In addition to the first layer of the first polyolefin composition and the sealant layer, the laminate also includes a substrate film and an adhesive layer comprising polyurethane in adhering contact with the substrate film and the first layer, where when the adhesive layer is formed from a solvent-free adhesive the adhesive layer has an elastic modulus of greater than 25 MPa, and when the adhesive layer is formed from a solvent-based adhesive the adhesive layer has an elastic modulus of greater than 0.30 MPa, the elastic modulus being measured for the polyurethane in accordance with ASTM D412.

A rectangular-bottomed packaging bag (1) is a rectangular-bottomed packaging bag formed by folding a sheet material member and includes a rectangular shaped bottom (2) a front (3) and a rear (4) rising from two facing sides of the bottom (2), and a pair of sides (5) connecting the front (3) and the rear (4). The pair of sides (5) each include a first region (31) positioned on the front (3) side, a second region (32) positioned on the rear (4) side, a side joining portion (33) joining the first region (31) and the second region (32), and an inclined joining portion (34) inclined to the bottom (2) side from the side joining portion (33) toward one of the front (3) and the rear (4) and joining the sheet material member of the first region (31) and the second region (32) overlapping each other in a direction of thickness.

Non-durable self-supporting flexible containers having product volumes and structural support frames are provided with vents to facilitate equalization of the pressure inside the product volume to the pressure of the environment outside of the containers. The vents enable rapid recovery of the structural support from a deformed state, which occurs when a fluent product is dispensed, to an undeformed state. For this purpose, the vents comprise vent paths between the environment outside of the containers and the product volume. The vents may further comprise a non-wetting material surrounding the entrance and exit of the vent path and/or microtexturing or a spacer to maintain space for air flow in the vent path.