A high strength environmental control device comprising a mesh container having at least one interior and one exterior surface is provided. The interior of the mesh container can comprise a filler material. The mesh container can comprise a plurality of yarns, including viscose fibers, interlaced together.

A sterilizable pouch includes at least one sheet, wherein outer peripheral edges of the at least one sheet are sealed together to define a pouch having an interior space for receiving an article therein. A first releasable seam spans between a first peripheral edge of the at least one sheet to a second, opposite, peripheral edge of the at least one sheet, the first releasable seam dividing the at least one sheet into a first sheet part and a second sheet part. A second releasable seam and a third releasable seam each substantially span from a third peripheral edge of the at least one sheet to a fourth, opposite, peripheral edge of the at least one sheet and along the first peripheral edge and the second peripheral edge, respectively. The second and third releasable seams are arranged generally perpendicular to the first releasable seam, where the first, second and third releasable seams enable the pouch to be completely opened such that a device can be removed from the pouch without the device contacting non-sterile portions of the pouch.

A sterilizable pouch includes at least one sheet, wherein outer peripheral edges of the at least one sheet are sealed together to define a pouch having an interior space for receiving an article therein. A first releasable seam spans between a first peripheral edge of the at least one sheet to a second, opposite, peripheral edge of the at least one sheet, the first releasable seam dividing the at least one sheet into a first sheet part and a second sheet part. A second releasable seam and a third releasable seam each substantially span from a third peripheral edge of the at least one sheet to a fourth, opposite, peripheral edge of the at least one sheet and along the first peripheral edge and the second peripheral edge, respectively. The second and third releasable seams are arranged generally perpendicular to the first releasable seam, where the first, second and third releasable seams enable the pouch to be completely opened such that a device can be removed from the pouch without the device contacting non-sterile portions of the pouch.

A method of manufacture and an adhesive patch vent is provided for application to a flexible packaging material. A fabric material has an adhesive applied to its surface. The adhesive being applied to outer portions of the fabric material where a central portion is adhesive free. The adhesive patch vent is applied to an interior of a flexible package material where the adhesive free portion aligns with a perforation in the flexible package material. The adhesive vent patch enables air to be expelled from a package but is resistant to damage to the exterior of the bag. In addition a food grade oil resistant adhesive is utilized.

A method of manufacture and an adhesive patch vent is provided for application to a flexible packaging material. A fabric material has an adhesive applied to its surface. The adhesive being applied to outer portions of the fabric material where a central portion is adhesive free. The adhesive patch vent is applied to an interior of a flexible package material where the adhesive free portion aligns with a perforation in the flexible package material. The adhesive vent patch enables air to be expelled from a package but is resistant to damage to the exterior of the bag. In addition a food grade oil resistant adhesive is utilized.

The invention is directed to a one-way valve for a flexible package which comprises a first film layer having at least one first cut line and a second film layer having at least one second cut line, wherein the lines are offset from one another. An adhesive layer is disposed between the first and second film layer, wherein the first film layer, the second film layer, and the adhesive layer define a valve area in which the first film layer and the second film layer are not permanently adhered to each other. The second cut line fluidly connects the interior of the flexible package to the valve area and the first cut line fluidly connects the valve area to the ambient atmosphere surrounding the flexible package. An adhesive pattern is disposed within the valve area and creates a gas flow channel from the second cut line toward the first cut line. An oil occupies the portions of the valve area which are not adhered via the permanent adhesive.

One-way pressure relief valves with wetting fluid reservoirs are disclosed. Valves of the types described herein may be applied to a product package, for example a package containing dry roasted coffee, to allow gas to escape from the package while preventing entry of ambient air into the package. A wetting fluid is provided within the valve to facilitate formation of the seal blocking entry of ambient air through the valve and into the product package. The wetting fluid reservoirs hold wetting fluid to limit or prevent leakage of the wetting fluid from the valve providing benefits such as improved application of the valves to the packages, improved retention of the valves to the packages, and appearance improvements resulting from avoidance of leakage of wetting fluid onto the valve and the package to which the valve is attached.

One-way pressure relief valves with wetting fluid reservoirs are disclosed. Valves of the types described herein may be applied to a product package, for example a package containing dry roasted coffee, to allow gas to escape from the package while preventing entry of ambient air into the package. A wetting fluid is provided within the valve to facilitate formation of the seal blocking entry of ambient air through the valve and into the product package. The wetting fluid reservoirs hold wetting fluid to limit or prevent leakage of the wetting fluid from the valve providing benefits such as improved application of the valves to the packages, improved retention of the valves to the packages, and appearance improvements resulting from avoidance of leakage of wetting fluid onto the valve and the package to which the valve is attached.

A tamper evident sealable plastic bag having front and rear walls terminating into front and rear flaps with handle openings at the mouth end of the bag and forming a holding cavity at a bottom closed end thereof. The side edges of the bag below the flap region are sealed. An adhesive closure system positioned below the flap region extends laterally from one side edge of the bag to another that can be deployed by removing a protective liner covering an adhesive strip for substantially closing off the mouth end of the bag thus providing improved security and tamper resistance. The bag can be opened by tearing along a perforated line. The bag walls include a plurality of slits for venting steam emanating from hot foods. In embodiments, tear initiation slits are utilized in tandem with perforations to provide a convenient method for opening the bag.

A tamper evident sealable plastic bag having front and rear walls terminating into front and rear flaps with handle openings at the mouth end of the bag and forming a holding cavity at a bottom closed end thereof. The side edges of the bag below the flap region are sealed. An adhesive closure system positioned below the flap region extends laterally from one side edge of the bag to another that can be deployed by removing a protective liner covering an adhesive strip for substantially closing off the mouth end of the bag thus providing improved security and tamper resistance. The bag can be opened by tearing along a perforated line. The bag walls include a plurality of slits for venting steam emanating from hot foods. In embodiments, tear initiation slits are utilized in tandem with perforations to provide a convenient method for opening the bag.