Abstract: A resealable carton, having a product-containing bag liner, is constructed such that the liner bag is positively held in the folded, sealed condition by the incorporation of a fold support ledge which extends inwardly from an end wall of the carton. The bag is held against the support ledge by one of the closure flaps, which creates a tightly constructed U-shaped fold in which the bag is folded around the end of the closure flap. The liner is secured in that position in part by being captured between the top of the inner closure flap and an outer closure flap along a top run of the fold. A bottom fold is held between the support ledge and the inner closure flap. The support ledge may be formed in various ways including folding the end wall, embossing the end wall or forming the ledge by adding a bead of self-adhesive material to the end wall.

Abstract: A resealable carton, having a product-containing bag liner, is constructed such that the liner bag is positively held in the folded, sealed condition by the incorporation of a fold support ledge which extends inwardly from an end wall of the carton. The bag is held against the support ledge by one of the closure flaps, which creates a tightly constructed U-shaped fold in which the bag is folded around the end of the closure flap. The liner is secured in that position in part by being captured between the top of the inner closure flap and an outer closure flap along a top run of the fold. A bottom fold is held between the support ledge and the inner closure flap. The support ledge may be formed in various ways including folding the end wall, embossing the end wall or forming the ledge by adding a bead of self-adhesive material to the end wall.

Abstract: An apparatus and method for making a composite packaging material for easy-open packages includes means for pulling a running length of packaging film, the film having defined rupture characteristics. The packaging film is perforated with a sequence of spaced apart at least one perforation separated from another at a substantially constant fixed interval between adjacent ones of the sequence along the length of the film. A tape with a continuously extending dry edge is formed from a continuous supply of tape and tape pieces are formed and spaced apart along the length of the film. Successive discrete pieces of tape are adhered to the packaging film in overlying sealing relationship to successive ones of the sequence of at least one perforation.

Abstract: A novel package wrapper made of plastic film with a line of package-opening perforations through the film positioned in one face of the package and being overlaid by a piece of plastic tape which seals the perforations, the tape having a dry edge. The perforations and overlying tape are spaced inward from the edges of the package and extend substantially linearly, but have the tape ends terminate short of any package seal so that they are not bound into the seals. In one embodiment the package wrapper is made of air and moisture non-permeable shrink wrap film, and the tear down tape is made of a non-permeable non-shrink plastic which has been processed to exhibit the same shrink characteristics as those of the shrink wrap film, so that when the wrap film is shrunk during packaging the tape shrinks the same amount as the film and does not itself pucker or wrinkle the film. The package is completely sealed but does not require the use of any tool to open it.

Abstract: A container (1) has a flexible wall portion with one opening (2) covered by a resealable cover (3). The cover is held at its ends (5) to the wall and includes a return bend (7) to reduce the risk that sealing and opening of the bag will tear the wall portion.

Abstract: A resealable container with a tearable face is opened and resealed by a label. The container face preferably includes a U-shaped slit to form a tongue with part of the label. The label has a dry side and an adhesive side, the adhesive side attached to the container face with releasable adhesive. The adhesive side also has a dry noncoated section at one end to serve as a pull tab. When the dry pull tab is lifted, the label lifts and tears the container along the preformed slit, lifting the tongue to form an opening. The label is resealed by pressing the label back into position over the opening. For better alignment, the label may be partially coated with permanent adhesive. Tamper evidence tabs and slits are also provided.

Abstract: Method and apparatus are disclosed having particular utility in connection with packages overwrapped with heat shrinkable film and which include a tear-tab opening. The apparatus includes means to sever the film and tape together by the use of a cutting tool. The cutter is generally pen-shaped, the nib portion forming the cutting surface. Other parts of the apparatus include a tab roller which provides variable control capability to allow the tab to be positioned at a pre-selected place on the package. The tear tape tab produced by the apparatus and method of this invention eliminates the need for melt re-inforcing and is applicable to high speed operations of either the continuous or reciprocating kind.