Recyclable pouches formed from rollstock and having a resealable closure that extends into both side edges of the pouch may be produced at high speeds on a single manufacturing line in which the pouches are formed, cut apart, filled, and then sealed if the film forming the pouch comprises a recyclable heat seal layer and a second recyclable layer having a melting temperature of at least 30° C. greater than the heat seal layer.

A packing bag to store a stored article Z with tight seal by a welded sheet material 1 of resin in which a separation-prepared line portion 5, separable by predetermined tensile force F by human hands to take out the stored article Z, is provided along an opening-prepared side portion 10, the sheet material 1 has a layered unit construction in which first and second welding resin layers 61A and 61B are disposed on both sides, and a barrier layer is disposed on a middle position, the separation-prepared line portion 5 is composed of a half-cut first laser-worked groove 7A concaved on the first welding resin layer 61A and a half-cut second laser-worked groove 7B concaved on the second welding resin layer 61B, and, the first and second laser-worked grooves 7A and 7B are formed barely damaging the barrier layer 60.

A first feed device adjusts an intermittent feed amount thereof based on output of a first sensor such that a design position of a first panel is aligned with a first fixing position during every pause phase of an intermittent feed cycle. A second feed device adjusts tension of a second panel and an intermittent feed amount of a feed unit based on output of at least one second sensor such that a design position of the second panel is aligned with a second fixing position during every pause phase of an intermittent feed cycle. A third feed device adjusts an intermittent feed amount thereof based on output of a third sensor such that the design position of the first panel is aligned with the second fixing position during every pause phase of an intermittent feed cycle.

Methods of making vents in containers made from flexible materials, including forming vent openings in a first flexible material, forming vent stand-offs on a second flexible material, and combining the flexible materials to form a vent passage for the flexible container.

An apparatus is configured to make containers from sheet material. The apparatus includes a supply station for supplying a film having at least one folded portion having three or more film flaps folded and superimposed with respect to each other; a welding station configured to receive the film. The welding station comprises a welding head configured for welding the folded portion of the film and forming a container defining a housing compartment; the welding head comprises a heater made of electrically conductive material whose electrical resistivity, at least in a predetermined temperature range, decreases upon the increase of the temperature of the same electrically conductive material.

An improved paperboard pouch comprising a multilayer substrate and a method of making the same is provided. The multilayer paperboard pouch comprises an outer surface and an inner surface, wherein one of the surfaces is defined as a food contact surface. In the depicted embodiment, the properties of the polymer layer are chosen to provide adequate mechanical and barrier protection to the paper-based pouch formed on the conventional pouch-forming equipment. A method of manufacturing a multilayer paperboard pouch using conventional bag-making equipment (“CBME”) running at normal production speed for making standard plastic pouches is also provided. First, a paper is extrusion-coated and then the CBME is configured with a feeder for feeding an extrusion-coated paper intermittently for a length along a feeding path; a cutter disposed at a position predetermined for cutting one of the layers of the coated paper and forming a first side gusset, a second side gusset and a bottom gusset portions and for folding each of a first side gusset, a second side gusset and a bottom gusset portions into halves along a center line extending longitudinally thereof; and a sealer for sealing the layers of the polymer with the layers of the bottom gusset portion and the layers of the first and second gusset portions, respectively to form the finished multilayer paperboard pouch ready for sale and distribution to various retailers. It is to be noted that in the depicted embodiment various closure constructions and mechanism can be used for heat sealing the finished pouches.

A system and method for forming reinforced packages. The method can comprise forming an attached web by adhering a construct to a web of material, and moving the attached web in a downstream direction through at least a web edge forming assembly. The moving the attached web can comprise moving the construct with the web of material. The method further can include at least partially forming a folded web by folding at least a portion of the web of material as the attached web moves through the web folding assembly and forming a reinforced package comprising a liner and the construct by separating the liner from a remainder of the folded web. The construct is adhered to the liner.

According to an aspect of the invention, provided is a bag-shaped container including a tubular film and at least one pair of engagement portions. The tubular film has an inner surface and an outer surface, and is folded in a manner that the outer surface configures both an inner surface of a bag body and an outer surface of the bag body. The at least one pair of engagement portions projects from the inner surface of the bag body, and engages with each other.

A packaging material includes a web of pouches and an outer skin. One panel of the web has an inflation pattern that is not inflated. The web has a continuous inflation channel that is in fluid communication with the inflation pattern. Each of the pouches of the web can be inflated by inflating the inflation pattern while the outer skin already attached to the outside of the web. The outer skin is attached to the web only along edge lines of the pouches. The outer skin is detached from the web between the edge lines of the pouches. The outer skin is attached to the outside of the web such that the continuous inflation pattern extends above the outer skin.

A wrapping material includes a substrate and a buffer layer, wherein the substrate has a first lateral edge and a second lateral edge, and the buffer layer has a third lateral edge and a fourth lateral edge. The buffer layer is stacked on the substrate. The first lateral edge of the substrate is tightly merged with the third lateral edge of the buffer layer, and the second lateral edge of the substrate is tightly merged with the fourth lateral edge of the buffer layer. A method of making a wrapping material includes: providing a substrate; stacking a buffer layer on the substrate; using a thermal cutting tool to cut the stacked substrate and buffer layer so that the substrate and the buffer layer are tightly merged at where they are cut as being melted by heat.