The product efficiency of bags each with an end face part is increased. A panel webs is guided to be divided along a line of weakness of the panel web and to be folded along division edges of the panel web. This guiding of the first panel and temporary sealed sections cause a side gusset to be cut open along a line of weakness of the side gusset such that open surfaces are formed. After the forming of the open surfaces, an end face web is supplied to be superposed on folded parts of the panel web and the open surfaces of the side gusset.

A method is provided that includes moving a first web of flexible material in a web direction. The method then includes attaching fastener strips to the first web. The fastener strips are spaced-apart a predetermined distance along a transverse direction to the web direction. An enclosure is formed from the first web including a front wall, a back wall, a first lateral side wall, and a second lateral side wall. The front wall opposes the back wall, and the first lateral side wall opposes the second lateral side wall. The enclosure includes an upper end openable by separating the fastener strips. Corners are formed in the enclosure between the front wall, the back wall, the first lateral side wall, and the second lateral side wall. The corners are formed from the predetermined distance between the fastener strips and the fastener strips are spaced apart from each other by the corners.

Packaging material is provided. The packaging material can include at least one web layer having a surface that includes first and second regions. When corresponding first regions are overlaid with each other and corresponding second regions are overlaid with each other, the overlaid first and second regions can cooperatively surround a cavity. The packaging material further can include a first sealing material disposed in the first region and configured to seal together the corresponding first regions upon application of first conditions to the first sealing material, and a second sealing material disposed in the second region and configured to seal together the corresponding second regions upon application of second conditions to the second sealing material. The second sealing material can be configured such that the first conditions applied to the second sealing material are insufficient to cause the second sealing material to seal.

A lightweight continuous band for the manufacture of bags for fruit and vegetable produce and similar products, consisting of a continuous plastic sheet of the same width as that of the aforementioned band; said band features at each of the aforementioned sectors one or more windows of like or different sizes; at least one of the windows is closed by means of a fragment of plastic material of a shape and dimensions suited to said at least one window, and whose edges are fixed to the periphery of the same by thermo-welding or similar procedure; said fragment of plastic material features a plurality of stamped holes of like size, which are evenly distributed throughout the surface of said fragment.

In an apparatus and method for successively making plastic bags, webs of first and second panel materials are superposed and fed longitudinally. A plastic film is slit to form longitudinal slit lines so as to be divided into the web of the first panel material and a plurality of webs of a bottom gusset material before the webs of the first and second panel materials are superposed. Then, the webs of the bottom gusset material are guided and supplied to the webs of the first or second panel material by bottom gusset material guide devices. The bottom gusset material is not supplied from another supply roll, and a pattern discrepancy is not caused.

A package is disclosed. The package includes at least one clinging or adhering access feature at an access opening of the package. A method of forming and dispensing contents from a package is also disclosed.

The machine and the method disclosed use a panel plastic film that is longitudinally folded into top and bottom halves before slitting along the fold. The halves are simultaneously transported ensuring print registration and requiring a single accumulator in the longitudinal direction. Side gusset pieces are inserted between the top and bottom halves through an initial gap enlarged by a pair of timing belts. The top and bottom halves partly sealed with the side gusset pieces are pulled away from each other and a means gives the ends of the side gusset pieces the shape of a rhomboid. Bottom gusset film is vertically sealed along the vertical axis of the rhomboid shaped ends of the side gusset pieces with the seal extending to the folded portions of the top and bottom halves. Longitudinal sealing and transverse sealing before cutting ensure sealing of the bottom gusset and side gussets.

A method of sealing reinforced packages. The method can comprise moving an open-ended package in a downstream direction on a package conveyor by engaging the open-ended package with a chain flight of the package conveyor moving in the downstream direction. The method further can comprise forming a bag with a closed end by engaging at least a seal portion of a tail section of an open-ended tube portion of the open-ended package between the chain flight of the package conveyor and a hot plate positioned adjacent the package conveyor. The chain flight can move with the tail section in the downstream direction relative to the hot plate, which can transfer thermal energy to the tail section to at least partially form a seal along the seal portion in the tail section to at least partially form the closed end of the bag.

A web of first or second material is provided with the spout, and a plastic bag is made from side gusset materials in addition to webs of the first and second materials. An aperture is formed in the web of the first or second panel material, and the spout is inserted into and positioned with the aperture, whenever the webs of the first and second panel materials are fed intermittently. After the webs of the first and second panel materials are superposed on each other, whenever the webs of the first and second panel materials are fed intermittently, the webs of the first and second panel materials are heat sealed with each other in a longitudinal direction thereof by a longitudinal seal device, and the webs of the first and second panel materials are heat sealed with the side gusset materials in a width direction thereof by a cross seal device.

The present invention addresses certain problems facing flexible packages and the packaging industry. Embodiments of the present invention are directed to a method of heat scoring the film or material of the package in various shapes and locations to facilitate the consumer opening the package. Embodiments are also directed to a heat scoring device for delivering the heat score to the package material during the manufacturing process. Other embodiments are directed to a package having one or more heat scores for permitting a user to easily access the contents of a package while maintaining the integrity of the package.