The purpose of the present invention is to improve surface scratch problems occurring in the manufacturing process and handling of an adherend on which stamping foil is applied, prevent a problem in which a transfer layer of stamping foil is separated at a portion that is bent when the adherend is folded, secure binding force in printing with various inks, and fundamentally prevent powder generated during cutting according to a product standard in a stamping foil manufacturing process. To this end, the stamping foil of the present invention comprises: (a) a base film which is removed after stamping transfer; (b-1) a wear-resistant release layer formed on the base film and containing a polyurethane-based release agent, an acrylic resin, and an ethene-based polymer additive, or (b-2) (i) a polyurethane-based release layer formed on the base film and (ii) a wear-resistant layer formed on the polyurethane-based release layer and containing an acrylic matrix resin and an ethene-based polymer additive; (c) a moisture penetration-preventing and metal-deposited heat-resistant cured coating layer; (d) a metal deposition layer formed on the moisture penetration-preventing cured coating layer; and (e) optionally, a thick film protective layer formed on the metal deposition layer, for preventing the corrosion of the metal deposition layer.

By providing a depressed portion 7 in a container main body 1a, forming a thick portion 5a in a covering layer 5 on an edge portion 7b of the depressed portion 7, and forming a thin portion 5b adjacent to the thick portion 5a in the covering layer 5 on a bottom surface 7a side of the depressed portion 7, when a synthetic resin container including a container main body molded into a predetermined container shape and a covering layer laminated on an outer peripheral surface side of the container main body is discarded, the container main body and the covering layer can be easily separated.

A synthetic resin container and method for manufacturing the same, including a container main body molded into a predetermined container shape and a covering layer laminated on an outer peripheral surface side of the container main body. The method includes heating the composite preform to bring the covering material layer into a molten state or a semi-molten state while softening the preform main body to be stretchable, subsequently molding the composite preform into a predetermined container shape by using a blow molding die in which an edge portion formed by providing a step on a cavity inner peripheral surface extends along a predetermined direction, and providing, in the covering material layer to be molded integrally with the preform main body, a thin portion molded by being brought into pressure contact with the edge portion.

The present invention provides a laminated sheet for manufacturing a packaging container. The laminated sheet comprises a pair of plastic sheets, a barrier sheet, a barrier region, an easily peelable region, and a fixing region. The barrier sheet has flexibility and is disposed between the pair of plastic sheets. The barrier region is formed by overlapping the pair of plastic sheets and the barrier sheet with each other. The easily peelable region is provided in the barrier region. The fixing region is located in a circumference of the easily peelable region, in which the pair of plastic sheets are fixed to each other directly and/or via the barrier sheet. A peel strength between the pair of plastic sheets and the barrier sheet in the easily peelable region is smaller than a direct peel strength between the pair of plastic sheets and/or a peel strength between the pair of plastic sheets via the barrier sheet in the fixing region. This improves recyclability of a packaging container having gas barrier property.

The use of hemp paper for use in bags or newsprint.

A laminate includes a substrate layer and a heat-sealing layer. A fold of the laminate produced by a weight of a 2 kg roller has a folding angle of 20 to 55°, and a content of polyethylene in the laminate is 90% by mass or more. The folding angle may be 25 to 55°. The substrate layer may contain high-density polyethylene. The substrate layer may be a uniaxially oriented linear low-density polyethylene film or an unstretched film made of polyethylene.

A packaging material for packaging contents containing fragrances includes a first polyolefin layer, an inorganic deposition layer, a gas barrier coating layer, and a second polyolefin layer having heat-sealing properties, in this order.

Food tray and food related features that provide a structure having a rounded corner appearance and assembly by mechanical folding are provided, among other features. The tray can have a flap directed adjacent and continuing from a series of triangles formed by fold lines wherein the flap is positioned to have a surface that is flush with the surface of an adjacent sidewall when assembled. A series of tab are positioned above the triangles and when assembled the outer edges of the triangles adjoin the tray sidewalls to close the junctions. A heat and pressure process adheres the adjacent surface. The tray can be made from material is recyclable, compostable and/or biodegradable.

A degradable containment includes an outer structural layer constructed of a pulp material, a central carrier layer constructed of a biopolymer, and an interior nanomaterial layer constructed of a nanomaterial.

A recyclable composite zipper bag and a method for producing the same are provided. At least two side edges of two composite films are bonded by heat seal to form the bag body of the recyclable composite zipper bag. Each composite film includes an outer layer and an inner layer. The outer layer is a BOPE film and the inner layer is a PCR PE film. The outer layer and the inner layer are combined with each other. The composite film made of BOPE and PCR PE can increase impact and puncture resistance of the recyclable composite zipper bag and favor to recycle and reuse. In the method for producing a recyclable composite zipper bag, the composite films are bonded by heat seal at a temperature of 120-130° C. in order to effectively avoid wrinkling, thereby improving the yield of products.