Abstract: A packaging article comprises two sheets of material bonded to form a pouch, with one layer comprising a first sheet of a porous material, e.g., Tyvek® film, and a second nonporous sheet overlying and sealed to the first sheet. The second sheet is impermeable to passage of gas therethrough and includes a peelable film, e.g., of polyethylene, in contact with the first sheet of porous material to permit peeling removal of the second sheet from the first sheet. A method of integrity testing includes fabricating a packaging article, pressurizing same with a gas and monitoring pressure to determine package integrity, removing the peelable film, and exposing a packaging article to sterilant gas supplied through the porous first sheet.

Abstract: A packaging article comprises two sheets of material bonded to form a pouch, with one layer comprising a first sheet of a porous material, e.g., Tyvek® film, and a second nonporous sheet overlying and sealed to the first sheet. The second sheet is impermeable to passage of gas therethrough and includes a peelable film, e.g., of polyethylene, in contact with the first sheet of porous material to permit peeling removal of the second sheet from the first sheet. A method of integrity testing includes fabricating a packaging article, pressurizing same with a gas and monitoring pressure to determine package integrity, removing the peelable film, and exposing a packaging article to sterilant gas supplied through the porous first sheet.

Abstract: A multilayer web article, including a first layer of a porous material, e.g., Tyvek® film, and a second layer overlying and sealed to the first layer. The second layer is non-porous to passage of gas therethrough and includes a peelable film, e.g., of polyethylene, in contact with the first layer of porous material. The peelable film permits peeling removal of the second layer from the first layer to expose the first layer of porous material for passage of gas therethrough. In a specific construction, the web article constitutes one of opposedly facing panels of a lay-flat bag article, in which the facing panels are bonded to one another along superposed edges thereof. After pressurization integrity testing of the bag, the peelable film is peeled away to enable steam - and/or ETO-sterilization of the bag and its contents to be carried out.

Abstract: A package 10 is disclosed which is adapted to receive and protect goods, such as for example electronic components 16. The package has a body which includes a translucent window 14 formed from a flexible laminated sheet material. A first layer 40 of said laminated sheet material comprises an environmental protection ply 30 including an inorganic oxide (SiO2) deposited onto a first carrier ply and a second layer 42 of said flexible sheet material comprises an electrical protection ply 32 including an electrically conductive material Al deposited onto a second carrier ply. The first and second carrier plies are laminated together in a back-to-back relationship and at least one and preferably both said protection plies 40, 42 has a heat-sealable outer ply 20 laminated thereto.

Abstract: A multilayer web article, including a first layer of a porous material, e.g., Tyvek® film, and a second layer overlying and sealed to the first layer. The second layer is non-porous to passage of gas therethrough and includes a peelable film, e.g., of polyethylene, in contact with the first layer of porous material. The peelable film permits peeling removal of the second layer from the first layer to expose the first layer of porous material for passage of gas therethrough. In a specific construction, the web article constitutes one of opposedly facing panels of a lay-flat bag article, in which the facing panels are bonded to one another along superposed edges thereof. After pressurization integrity testing of the bag, the peelable film is peeled away to enable steam- and/or ETO-sterilization of the bag and its contents to be carried out.