A web of bags includes a sheet material and a connecting material. The sheet material includes two sheets that are formed from a fiber-based material, are arranged to form a series of bags, and are connected together to form sides of the bags. Each bag is bounded by the sides where sheets are connected together and an opening. The connecting material is applied to inner surfaces of the sheets and can be activated to connect inner surfaces by the activated portions of the connecting material. The connecting material is applied to closing regions on the inner surfaces of the sheets such that the connecting material in the closing regions can be activated to close the opening.

A tamper-evident bag seal including tabs for separating flaps of the seal along a perforation is provided. The tamper-evident bag seal may be a paper or paperboard panel that folds over the handles of an existing bag and is secured to the sides of the bag. The tamper-evident bag seal includes a fold having perforated sections adjacent centrally located tabs. By pulling the tabs in opposite directions, the perforated sections are compromised, permitting access to bag contents and evidencing tampering of the bag seal.

During the manufacturing process the exterior surface of one or both of the sheets of plastic film which form the bags is treated with low temperature corona discharge plasma to raise the level of surface charge magnitude to at least 43 Dyne to increase the adhesion force between the bags. A recess is formed in each of the bags to further increase the adhesion. The increased adhesion causes the mouth of one bag to automatically open as the adjacent bag is removed from the rack. The recess is formed at the same time openings are created in the bags to accept the support rods of a dispensing rack. The bags can have simple edge sides or side gussets and may be provided in a package including a pouch which receives and supports the lower portions of the bags.

T-Shirt bag with a front foil layer, a rear foil layer and side folds, where the front foil layer and the rear foil layer and the two side folds at the bottom edge and at the top edge are joined together; and where at the top edge of the T-shirt bag two handles are formed by a recess, both handles being provided with a continuous suspension opening; where the perforation openings with incisions and a spot connection are provided in the front foil layer and in the front side fold portions of each handle.

A packaging material used for a bag for transporting of a silicon material is a laminate in which a first resin base, barrier, second resin base, resin, and sealant layers are laminated in that order. A resin layer indentation elastic modulus is smaller than an indentation elastic modulus of each of the first and second resin base layers by one or more orders of magnitude, a sealant layer indentation elastic modulus is smaller than a first resin base layer indentation elastic modulus of and a second resin base layer indentation elastic modulus by one or more orders of magnitude, and a difference between the first resin base layer indentation elastic modulus and the second resin base layer indentation elastic modulus is smaller than a difference between the second resin base layer indentation elastic modulus and the indentation elastic modulus of the resin layer.

A tamper evident delivery bag assembly includes a single use closure tape is laterally mounted to the first panel upper section, and includes an upper lateral portion extending laterally above the first edge of the bag assembly in an unsealed condition. The tape upper lateral portion can be folded over the second edge of the second panel such that an adhesive of the tape is brought into contact with the exterior surface of the second panel, substantially sealing the bag opening in a sealed condition. The leg portions of the handles are received through the cutouts of the tape. The closure tape member further includes a note tab extending downwardly from a middle lateral portion thereof. The note tab includes a tab adhesive and a removable protective cover. When the protective cover is removed, the note can be placed between the tab adhesive and the exterior surface of the first panel, and adhered therebetween in a mounted condition.

A woven laminated plastic bag having features that further prevent leakage of contents out of the bag, or infestation of organisms into the contents of the bag is provided. In various aspects the bag can be fabricated from woven polypropylene and/or polyethylene layer which can be laminated with a film layer, can form a pinch bottom bag, and can have one or both sides include graphics and/or printing. The bag can also provide a top end and/or a bottom end either or both of which provide a discrete area which may contain discrete graphics and/or printing. The bag can also include a tape covered easy open feature that facilitates removal of tightly adhered sealing tape.

A woven laminated plastic bag having features that prevent leakage of contents out of the bag, or infestation of organisms into the contents of the bag is provided. The bag can provide a top end and a bottom end that provide a discrete area that may contain discrete graphics or printing. The bag can also include an easy open feature that can be easily opened with less force than a sealed closure of the bag. The easy open feature may be oriented in various directions with respect to the bag.

A package is provided that is formed from a packaging material, such as film, having increased adhesive in critical locations, such as adjacent folds in the end seal and other areas so that that the increased adhesive can at least partially fill voids adjacent such folds. The additional, localized sealant material is applied in a plurality of discrete locations in the end seal or other region adjacent where folds are formed and overlap with a sealant layer so as to provide additional sealant material for at least partially filling the voids without being present throughout the entirety, majority or large portions of the packaging material.

A flat-bottomed bag is formed from a flexible sheet that initially is flat prior to being manipulated to form the bag. The sheet is a laminate of a first web and a second web laminated together by an adhesive layer disposed between the webs. The sheet defines a plurality of serially connected side wall panels collectively defining a vertically extending side wall of the bag, and a plurality of bottom panels respectively connected to the side wall panels at respective fold lines. The bottom panels are folded about the fold lines and are attached together to form a flat bottom wall configured to support the bag in an upright orientation. The adhesive layer is in a partial-coverage pattern that includes adhesive-free regions located along each fold line between each bottom panel and the respective side wall panel connected therewith.