The presently disclosed subject matter provides a system and method for sterilizing a wide variety of products. Specifically, in some embodiments, the presently disclosed subject matter is directed to a package that is capable of self-sterilizing by initiating sterilizing conditions inside the package interior without the necessity of being treated with an externally-supplied sterilizing medium. Particularly, the disclosed package includes at least one dual-layer lid that comprises inner and outer layers and an interstitial space that houses a sterilizing gas-producing component.

A non-shrink, irradiated packaging film includes first, second, third, and fourth layers of polyamide (PA); a first polyethylene vinyl alcohol (EVOH) layer between the first and second PA layers; a second EVOH layer between the third and fourth PA layers; a mid-layer between the second and third PA layers; and first and second polyethylene (PE) layers. The first, second, third, and fourth PA layers, the first and second EVOH layers, and the mid-layer are between the first and second PE layers. The mid-layer may be formed from a polymer.

A paper or paperboard based packaging laminate comprising: a paper or paperboard base layer, a mineral coating layer, a PVOH coating layer, and a metallized film layer, wherein the mineral coating layer is arranged between and in contact with the base layer and the PVOH coating layer, and wherein the metallized film layer is laminated to the PVOH coating layer, and wherein the packaging laminate has an oxygen transfer rate (OTR), measured according to the standard ASTM F-1927 at 90% relative humidity and 38? C., of less than 5 cc/m.sup.2/day. Also a container with such a paper or paperboard based packaging laminate.

A film for a pouch having a central layer, a first LLDPE tie layer, a second LLDPE tie layer, an outside HDPE layer, and inside HDPE layer and an inner LLDPE layer. The central layer is an ethylene EVOH, having an inside and an outside opposite the inside and a thickness. The first LLDPE tie layer is on the inside of the EVOH. The second LLDPE tie layer is on the outside of the EVOH. The at least one outside HDPE layer on an outside of the second LLDPE tie layer opposite the EVOH layer. The at least one inside HDPE layer on an inside of the first LLDPE tie layer opposite the EVOH layer. The inner LLDPE layer on an innermost of the at least one inside HDPE layer. The inside PE thickness being at least twice the outside PE thickness.

A preparation method of a high-barrier antibacterial flame-retardant food packaging film solves problems that an existing food packaging film is non-degradable, poor in preservation effect, and inflammable. The preparation method includes: performing blending reaction on chitosan quaternary ammonium salt and phytic acid to generate a polyelectrolyte complex; and adding the polyelectrolyte complex into a polyvinyl alcohol solution, heating the polyvinyl alcohol solution added with the polyelectrolyte complex to obtain a film-forming solution, pouring the film-forming solution into a mold, leveling and drying the film-forming solution to obtain the high-barrier antibacterial flame-retardant food packaging film. The food packaging film has water vapor permeability in 1.82-2.58?10.sup.?8 g.Math.s.sup.?1.Math.m.sup.?1.Math.Pa.sup.?1, oxygen permeability in 1.63-12.31 cm.sup.3.Math.mm.sup.?2.Math.Pa.sup.?1.Math.day.sup.?1, and a value of limiting oxygen index (LOI) in 28.10%-33.33%. The food packaging film performs an instant self-extinguishing behavior after ignition; and can inhibit Staphylococcus aureus and Escherichia coli when used in packaging.

Embodiments are directed toward a product package filter assembly that prevents ambient contaminates from entering into the sealable product container. In some embodiments, the product package filter assembly includes an optional support element, a filter element, and a surface film element that are layered together with the filter element between the support element and the surface film element. The perimeters of the support element, the filter element, and the surface film element are sealably joined together. The product package filter assembly is then sealably joined over an opening of a product container. During heating of a product residing in the product container, gases generated in the product container vent out through the product package filter assembly, while the filter element prevents entry of contamination particles into the product container.

A packaging unit comprises at least one first piece of packaging material, wherein the first piece of packaging material has a coated paper, which has a base paper and at least three coatings applied one on top of the other on the base paper. The at least three coatings have in a sequence in which they are given, starting from the base paper, a first barrier layer, comprising at least one hydrophobic polymer, a second barrier layer, comprising at least one hydrophilic polymer, and a third barrier layer, comprising at least one hydrophobic polymer. Furthermore, the packaging is closed in a gas-tight manner.

A multilayered, flexible, and generally flat pouch for transporting and dispensing chocolate, including first and second elongated generally rectangular multilayered portions sealed together to yield a deformable generally rectangular fluid-tight sachet defining an internal volume and separating the internal volume from an external environment. The sachet further defines a top end, an oppositely disposed bottom end, and first and second sides extending therebetween. An untempered chocolate portion is contained within the internal volume. A tear notch is formed through at least one side and disposed adjacent the top end and a weakened tear strip extends between the second side and the bottom end. The sachet is substantially fluid-tight, and first and second elongated generally rectangular multilayered portions each further comprise an outer layer, an inner high-slip layer, a printable binding layer disposed between the inner and outer layers, and a metal vapor barrier layer disposed between the inner and outer layers. When actuated, the first weakened tear strip produces a corner pour spout through which molten chocolate may be extracted from the sachet. When actuated, the second weakened tear strip produces a central aperture through which molten chocolate may be extracted from the sachet.

A packaging material for packaging of light-sensitive goods, said packaging material comprising a first layer and a second layer, at least one hole penetrating said first layer and being covered by said second layer, and a light barrier, wherein said light barrier comprises a layer of ink being essentially nontransparent to light and provided on said second layer to at least partly cover said hole. The disclosure further relates to a method for providing a light barrier covering a hole in a packaging material as well as to a package for packaging of light-sensitive goods.

Provided is a resin laminate having: a polyester layer containing a polyester resin (A); and a mixed resin layer containing a polyamide resin (B) and a polyester resin (C). The polyamide resin (B) includes a constituent unit derived from a diamine and a constituent unit derived from a dicarboxylic acid, with 70 mol % or greater of the constituent derived from a diamine being a constituent unit derived from xylylenediamine, and 70 mol % or greater of the constituent unit derived from a dicarboxylic acid being a constituent unit derived from an ?,?-linear aliphatic dicarboxylic acid having from 4 to 20 carbons. Further, a radical concentration in the mixed resin layer is 1?10.sup.?12 mol/g or greater. Also provided are a multilayered film and a multilayered container formed from the resin laminate.