Abstract: A foldable plastic slider for straddling relation with a plastic fastener includes first and second profiles. The straddling slider is adapted to close or open the fastener by movement therealong. The slider comprises a transverse support member, first and second legs, first and second separating fingers, and first and second wings. The transverse support member includes first and second opposing sides, an interior surface, and an outer surface. The first and second legs depend from the respective first and second opposing sides of the support member. The first separating finger extends from the interior surface of the support member. The first separating finger is adapted to open the first and second profiles. The second separating finger extends from the interior surface of the support member. The first and second wings are hingedly attached to the respective first and second opposing sides.

Abstract: In the production of packs with outer wrappers which have a tear-open strip (12), the latter of continuous material strips (18), for the purpose of severing the tear-open strips (12), are provided with printing, markings (24), etc. Moreover, the film webs (13) from which the outer wrappers are made also are preferably provided with markings, printing or printed marks (25). Sensing elements help to detect the relative positions of the tear-open strip (12) and the film webs (13) on account of the printing and the drive of the film web (13) and/or of the material strip (18) is controlled accordingly.

Abstract: A polymeric film having a plurality of perforations, which are specially structured and arranged is described. The polymeric film provides a strong, high-tensile strength material that permits hand tearing of the film along a desired tear path, providing a controlled tear propagation line. The polymeric film may also be incorporated into a multi-layer film having cloth-like properties of strength and tear propagation, and is suitable for use various adhesive tape applications. Methods of making the polymeric film are also disclosed.

Abstract: A method of producing an adhesively closable data disk holder having of a pair of heat-sealable plastic panels fused together to form an interior pocket with an opening thereto, wherein an additional adhesive layer is fused to the inner surface of one of the holder panels adjacent the opening thereof to facilitate adhesive closure of the opening without the use of an overlying flap. The adhesive layer is constructed of a thin panel of compatibly heat-sealable plastic material, one surface of which carries a pressure sensitive adhesive over which an adhesive release strip is disposed. The adhesive layer is disposed between the outer holder panels so that the adhesive release strip insulates against fusion to its adjacent panel, as the opposing non-adhesive surface of the adhesive layer is heat-sealed to its adjacent holder panel. The process results in a data disk holder having a substantially uniform thickness throughout which is particularly beneficial when used in a bindery process.

Abstract: A first embodiment of the packing film is a four-layered laminate film in which the following films are laminated in that order: a first oriented plastic film formed as an outer surface layer and provided with a first coarse surface portion, an aluminum foil or paper sheet, a second oriented plastic film provided with a second coarse surface portion which is overlapped with the first coarse portion, and a non-oriented plastic film formed as an inner surface layer. A second embodiment of the packing film is a three-layered laminate film in which the following films are laminated in that order: an oriented plastic film formed as a first surface layer and provided with a coarse surface portion, an aluminum foil, and a non-oriented plastic film formed as an inner surface layer. The oriented plastic film forming the outer surface layer is backed at its coarse surface portion by a thin surface layer and laminated to the aluminum foil through a binder layer.

Abstract: Chocolates are wrapped individually by a method that involves feeding single wrapping sheets along a first path in a first direction spaced at a selected pitch, in such a way that the trailing edge of one wrapping sheet and the leading edge of the next are distanced one from another, and at the same time feeding a continuous ribbon in a second direction along a second path that merges with the first path at an assembling station where the ribbon is stably united with the sheets; ribbon and sheet then advance together in a third direction, along which the ribbon is divided into discrete slivers by repeated cuts, each made between the trailing edge of one sheet and the leading edge of the next and at a distance such that each sliver will present a portion projecting from the trailing edge of the wrapping sheet to which it is attached.

Abstract: A method and apparatus for formation of a preformed bonded pull tab over a reseal liner is disclosed. The pull tab seal layer of material is bonded together with a reseal liner layer of material for insertion into a closure. The pull tab on the pull tab liner seal is formed prior to combination of the two layers and is folded backwards between the two layers of material. Thus, after combining the two layers, punching out the closure liner and insertion into the closure, the reseal liner is separated from the pull tab seal and the pull tab seal is adhered to the rim of the container. Only one punch press step is required for forming the closure and container seals and insertion of the members into the closure. By forming the pull tab prior to combining the two layers, an assembly of the pull tab and reseal liner is made more efficient and less time consuming.

Abstract: A container has a sleeve-shaped container body part and a front wall. The discharge opening in the front wall is closed by a pull tab which is extended from the container body part for improved hygiene in the discharge area.

Abstract: An envelope formed from a single sheet of paper includes a front portion, a top flap, two lateral side flaps, a bottom flap, a top folding edge, two lateral side folding edges, and a bottom folding edge, the lateral side flaps overlapping and adhering to the bottom flap to form the back portion of the envelope. The top flap will adhere to the back portion after contents of interest are inserted into the envelope. The envelope further includes an opening device in the form of a piece of thin line disposed inside the envelope. The thin line loosely extends along one of the folding edges with its first end attached to one spot near one end of that folding edge and its opposite second end attached to an anchor portion on the outermost flap near the other end of that folding edge. The anchor portion does not adhere to any other flap.

Abstract: A pouch for holding liquids includes a pre-inserted straw within the pouch. A top end of the straw is exposed by removing a portion of the pouch. For manufacture, a web of flexible packaging material, suitable for forming a pouch or bag for storing liquids, is advanced forward in a pouch forming direction. A single straw of suitable length to fit within the confines of a resulting pouch is cut from a continuous length of straw material. The single straw is placed onto the web of packaging material in a location that will be on the inside surface of a single wall of the pouch and there it is secured in place preferably by a heat seal between one side of the straw and the inside surface of the pouch wall. The resulting pouch web material, having a plurality of straws positioned along its length provides a feedstock for forming pouches with pre-inserted straws when using a so called form and fill method of forming pouches or when making pre-made pouches.

Abstract: A sealing assembly attachment, for use in preparing envelopes which will apply a gum to a top flap, place a piece of release paper over the gummed flap, fold and crease the top flap and deliver the envelope to be stacked and counted. The sealing assembly attachment generally consists of a transfer cylinder to transfer envelopes into the sealing assembly attachment, a vacuum cylinder within the sealing assembly attachment to transport envelopes from the transfer cylinder and through the sealing assembly attachment, a gum pattern applicator to apply gum to a top flap of the envelopes while being transferred by the vacuum cylinder, a release paper applicator after the gum pattern applicator to place release paper over the gum applied to the top flap, a flap fold cylinder used in cooperation with the vacuum cylinder to fold and crease the top flap; and a delivery disk to transfer the envelope from the sealing assembly attachment to a delivery table to be stacked.

Abstract: A carton blank and carton have a reclosable hinged flap formed from a panel and glue flap of the carton. The flap is opened by depressing a disengaging tab formed in another panel of the carton. The disengaging tab overlies a portion of the flap so that depression of the tab moves the flap to separate the flap from the remainder of the panel in which it is formed. Fifty-percent cuts through the carton panels are used to separate the flaps from the panels.

Abstract: A recloseable container comprises an outer carton and a collar disposed therein. The outer carton includes opposing top and bottom walls, opposing front and back walls, and opposing side walls. The collar is press bonded to one or more of the inner surfaces of the opposing front and back walls and the opposing side walls of the carton. The opposing side walls and the front wall of the carton include a continuous horizontal tear strip for opening up the carton from a sealed form to form a lid hingedly attached to a base section. To manufacture the recloseable container, an outer surface of a strip of collar material is press bonded to an inner surface of carton material. The attached carton material and strip of collar material are then simultaneously die-cut and scored to produce a respective carton blank and collar blank from which the recloseable container is formed.

Abstract: A reducible volume container includes a package wall having an interior surface and an exterior surface, with at least one tear strip formed in the package wall. The tear strip is defined by a pair of generally parallel frangible tear lines. Each tear line includes a pair of generally parallel creases formed on the interior surface of the package wall, and a linear cut formed in the exterior of the package wall. The linear cut is disposed in an area between the parallel creases and has a depth extending only partly through the thickness of the package wall.

Abstract: An easily tearable plastic film and a pouch made therefrom comprises a thin-wall part for easy tearing. The thin-wall part being made by incorporating strings in the plastic film when it is made by melt extrusion. A method for producing the film and pouch is also shown.

Abstract: A method of making a container (10) having a unitary spout pull tab from a continuous sheet of flexible material (11) comprises the steps of folding the sheet to form two opposite side walls (23) joined at a bottom end by a bottom wall (20) and open at a top end opposite the bottom wall. Elongated portions of the two side walls are sealed together along their side edges to form two side seals (27) at least one of which includes a tab portion (12). Two breachably sealed V-folds (33, 34) are formed in the side walls adjacent the top end straddling the tab portion of the one side seal. Upon manually pulling the tab portion of the one side seal, the breachable seals of the V-folds straddling the tab portion of the one side seal may be broken and the two V-folds pulled outwardly to collectively form an open spout (S).

Abstract: A portable disinfecting and disposal device for medical waste. The device top portion includes a chemically filled packet which is sealed during ongoing use for attachment of medical waste to the device. Alternatively, the top portion includes a chemically filled container with access openings which is sealed during ongoing use for attachment of medical waste. The top portion is unsealed to release disinfecting chemical onto collected medical waste by removing a peelable cover. The cover can be removed in whole or part by a peel tab or strings attached to the cover.

Abstract: A paper package for use with milk, fruit juice or the like beverage products having a pulling-to-open member of polyethelene terephthalate and polyester film and an adhesive of synthetic rubber such as nitrile rubber for the provision of a positive opening effect of such packages.

Abstract: An outer wrapper for a container which includes an integral tear tape. The tear tape is formed by cutting two sets of score lines extending partially through the thickness of the wrapper material. The tear tape can be patterned to conform to the parting line along which the container opens, including oblique segments, thus allowing the container to be opened without interference from the parts of the wrapper which remain in contact with the container subsequent to removal of the tear tape.

Abstract: A sealing assembly attachment, for use in preparing envelopes which will apply a gum to a top flap, place a piece of release paper over the gummed flap, fold and crease the top flap and deliver the envelope to be stacked and counted. The sealing assembly attachment generally consists of a transfer cylinder to transfer envelopes into the sealing assembly attachment, a vacuum cylinder within the sealing assembly attachment to transport envelopes from the transfer cylinder and through the sealing assembly attachment, a gum pattern applicator to apply gum to a top flap of the envelopes while being transferred by the vacuum cylinder, a release paper applicator after the gum pattern applicator to place release paper over the gum applied to the top flap, a flap fold cylinder used in cooperation with the vacuum cylinder to fold and crease the top flap; and a delivery disk to transfer the envelope from the sealing assembly attachment to a delivery table to be stacked.

Abstract: A tear strip is formed in a paperboard container blank by scoring a line of weakness on each of the opposite surfaces. The lines are offset from each other to form between them an area where the piles are easily separated. One or both lines are formed by impressing the blank with a diamond pattern knurling tool.

Abstract: An apparatus for cutting tear-off strips from a strip of material having a width equal to the length of the tear-off strip and for applying the tear-off strip to a conveyed web of packaging material is disclosed. The apparatus has one movable and one stationary straight knife for the progressive cutting of the strip, a device to which suction can be applied for transferring the cut strip along its longitudinal axis to a suction roll, the suction roll being partially covered by the continuously conveyed packaging material. The strip is conveyed to the roll and the combination passes through a welding device for welding the tear-off strip to the web of packaging material.

Abstract: A process for producing a tightly sealed bag that can be easily opened by tearing at an edge thereof. According to the process a multiplicity of through cuts are formed along a line in a laminate film having at least one substrate layer and at least one heat seal layer. The laminate film is formed into an open bag with the line of through cuts provided along an edge to be sealed of the bag and edges of the open bag are heat sealed to form a sealed bag. In an alternative embodiment of the process, a multiplicity of through cuts are formed along a line in a substrate film and a heat seal film is laminated to the substrate film provided with the through cuts to form a laminate film prior to forming the sealed bag.

Abstract: Disclosed herein is a bag sealer and/or cutter including a hollow resilient core member over which the end of a paper or plastic bag can be folded, whereupon a resilient cover member can be applied thereover to effect sealing closure of the open end of a bag. The cover member also mounts an interior cutting blade to facilitate the initial opening of the bag.

Abstract: A shipping carton or container that can be readily opened and converted into a display tray without having to use a knife or other sharp instrument. The carton is formed from a blank having four sidewalls and hingedly connected top and bottom end panels. The sidewalls have a line of severance running circumferentially around the carton that defines a continuous butt joint separating the carton into a top cover section and a bottom tray section. A wide tape having a narrow tear filament or strip attached to its inner surface is adhesively attached to the sidewalls' outer surface such that it bridges the butt joint and holds the carton's top and bottom sections together, the tear strip being substantially superimposed over the butt joint. Pulling the tear filament neatly splits the wide tape and separates the carton's top and bottom sections.

Abstract: A pouch and a method and apparatus for forming an easy open pouch in a vertical form-fill-seal process wherein a pouch is formed from a sheet of thermoplastic film and a heat seal between pouches as they are filled serves as the top closure for the lower pouch and a bottom closure for the upper pouch, the easy open feature being provided by a U-shaped portion having a plurality of seal ribs, and a tear initiation notch.

Abstract: In the manufacture of aseptic packing containers from weblike laminate material, the material usually is brought into contact with a liquid sterilizing agent which, after a certain treatment period, is removed again. In order to avoid any accumulation of residues of sterilizing agent behind lugs, opening strips or the like a method and an arrangement for finishing an opening arrangement (2) on a packing container (1) are proposed, according to which an external gripping element (3) is placed over the opening region (4) only after the packing container (1) has been filled with the desired contents and has been closed. This is achieved with the help of a sealing unit (9) with a vacuum device (10) and a gas-permeable striplike gripping element (3).

Abstract: The present invention relates to a collection of ultra-thin bags and a collection of bags per se wherein said bags are made by providing two separated thermoplastic films; forming transversely across each separated film, lines of weakness extending from one edge of each film to the other, with each line spaced from the next a bag length distance apart; bringing the films together in face-to-face relationship with the lines of weakness across one film in registration with those of the other films; sealing the films transversely along lines parallel with and immediately adjacent to the lines of weakness; slit-sealing the film layers at one or more bag width intervals to complete individual but interconnected bag structures; and collecting each strip of interconnected bags into a volumetrically efficient form.

Abstract: A container is constructed from a paperboard sheet having a channel including a surface area of the paperboard sheet from which paperboard material has been removed and a tear strip at least partially bounded by the channel for opening the container by separation of the paperboard sheet along the channel.

Abstract: An apparatus for forming a tab on a tearing tape for a packing film for a pack of cigarettes, etc. and printing an identifying color or pattern on the tab. A cutter is provided on a roller facing a roll for supporting a bonded assembly of a web for forming a plurality of tearing tapes and a web for forming a plurality of packing films. The cutter has a generally U-shaped cutting edge for cutting a tab for each tearing tape. A printing plate is disposed movably in the cutter for printing an identifying color or pattern on each tab simultaneously when it is cut. An inking roller is provided on the opposite side of the cutter from the supporting roll for supplying a printing ink to the printing plate. The printing plate has a printing surface surrounded by the cutting edge and projecting slightly therefrom when the printing plate is in its inoperative position.

Abstract: A method and apparatus for producing rectangular lids with a folded tear tab at each corner from a continuous web of foil using a cutting device to cut a generally perpendicular incision opposite each other in each edge of the foil web, a folding tool having two angled folding edges running toward each other in a direction toward the middle of the foil web and intersecting at a point in the cutting plane of the cutting device that folds the areas of foil on both sides of the incision back on themselves to form two tear tabs, and a cut-off device to cut the foil web into discrete lengths in continuation of the cuts in the edges of the web to form the lids.

Abstract: An apparatus and method is disclosed for providing a heat shrinkable package with a frangible access panel therein defined by perforations disposed in the heat shrinkable package. A novelty of the method and apparatus resides in the perforation of the heat shrinkable material prior to passing the package through a heat shrink oven. The package is oriented on a conveyor with the perforations adjacent to the conveyor, enabling the perforated portion of the package to be subjected to less heat than the remainder of the package, enabling formation of the heat shrink package without severing the perforations defining the access panel.

Abstract: Small tear-open strips 10 are fed to a sheet 11 of packaging material in a timed sequence and applied to the sheet by reciprocating conveying members 22, 23 which only grip in one direction, so that the strip is pulled along in steps. As a result, a high performance and especially the transition from intermittent conveyance of the strip to continuous transport of the sheet of packaging material are possible.

Abstract: A pinch bottom open mouth ("PBOM") bag having a pinch bottom flap folded over upon and adhered to one wall of the bag, with a tab for tearing the flap open inserted at its inner end between the walls of the bag, folded to overlie the flap and the outside of the other wall and releasably adhered to the other wall, and a method of and apparatus for manufacturing the bags with the tabs from bag tubes wherein the tubes are continuously fed forward, one after another, tabs are applied to the tubes as the tubes travel forward and folded to overlie said other wall before the pinch closure flap is folded over, and wherein each tab is inserted between the walls of a tube by bringing the tab into a position overlapping said one wall and separating said one wall from the other to the point where the end of the tab slips off said one wall and becomes disposed between the walls.

Abstract: A tear strip is caused to move synchronously with a moving web of packaging material and the web and strip are brought into contact for subsequent joining to define a packaging material with integral tear strip. Contact between the packaging material and tear strip is effected at the surface of a rotating feed roller and a friction drive is employed to cause a supply reel for the tear strip to rotate synchronously with the feed roller.

Abstract: A paper bag having a pinch closure provided with a tab extending from within the bag between the portions of the walls of the bag in the pinch closure and projecting out of the pinch closure, the projecting portion of the tab being adapted to be grasped and pulled to tear the bag open at the pinch closure, and a method of manufacturing it involving provision of a bag tube, opening up the tube at one end, and inserting the tab in the tube.

Abstract: An opening structure preferably located in a top panel of a one-way packaging container provides a pour opening which can be reclosed after the initial opening. The structure is prepared by positioning and sewing a portion of a strip of web material on the panel, defining a pour opening area within the secured strip portion by applying a cut or weakening line forming a boundary. The pour opening area of the panel is retained in its original position in the panel. Then a second, unsecured portion of the strip is folded back over the first portion to cover the first portion and the pour opening area. Securing zones are produced to secure the second strip portion to the panel both within the pour opening area and a surrounding region to thereby obtain a hermetically sealed opening structure on the packaging container. The pour opening is uncovered by lifting the second strip portion so that the cut-out section of the panel is removed.

Abstract: An applicator (10) for applying a string or tape (72) coated with a thermoplastic adhesive to a moving substrate (14) is the subject of this patent application. The applicator (10) includes a first roll (28) about which the string (72) is fed. Thereafter, the string (72) is led over a second roll (30). The string (72) is, successively looped about both of the rolls (28, 30) a number of times. One of the rolls (28) is heated by use of a plurality of heating elements (26) embedded in a casting (24) surrounding the roll (28). The second roll (30) is pivotable about an axis and in a plane generally parallel to an axis of elongation of the first roll (28). Loops of the string (72) can, thereby, be spaced axially along the rolls (28).