WO2014154623A1 - A method of manufacturing a package, a web of packaging material, a package and a filling machine - Google Patents

A method of manufacturing a package, a web of packaging material, a package and a filling machine Download PDF

Info

Publication number
WO2014154623A1
WO2014154623A1 PCT/EP2014/055820 EP2014055820W WO2014154623A1 WO 2014154623 A1 WO2014154623 A1 WO 2014154623A1 EP 2014055820 W EP2014055820 W EP 2014055820W WO 2014154623 A1 WO2014154623 A1 WO 2014154623A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging material
web
tube
transversal
package
Prior art date
Application number
PCT/EP2014/055820
Other languages
French (fr)
Inventor
Mattias Lennartsson
Mårten ANDERSSON
Original Assignee
Tetra Laval Holdings & Finance S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tetra Laval Holdings & Finance S.A. filed Critical Tetra Laval Holdings & Finance S.A.
Priority to RU2015145832A priority Critical patent/RU2653072C2/en
Priority to CN201480019072.9A priority patent/CN105073582B/en
Priority to US14/780,969 priority patent/US10315790B2/en
Priority to BR112015021694-3A priority patent/BR112015021694B1/en
Priority to EP14714955.3A priority patent/EP2978673B1/en
Priority to MX2015013456A priority patent/MX366821B/en
Priority to JP2016504608A priority patent/JP6293863B2/en
Publication of WO2014154623A1 publication Critical patent/WO2014154623A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2056—Machines for packages of special type or form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43129—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams said flat seams being transversal but non-orthogonal with respect to the tubular or hollow articles, i.e. oblique
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/303—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/306—Counter-rotating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/12—Subdividing filled tubes to form two or more packages by sealing or securing involving displacement of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/207—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web advancing continuously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/213—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web having intermittent motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/40—Packages formed by enclosing successive articles, or increments of material, in webs, e.g. folded or tubular webs, or by subdividing tubes filled with liquid, semi-liquid, or plastic materials
    • B65D75/44—Individual packages cut from webs or tubes
    • B65D75/48—Individual packages cut from webs or tubes containing liquids, semiliquids, or pastes, e.g. cushion-shaped packages
    • B65D75/50—Tetrahedral packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3656—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/223—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being in the form of a triangle wave or of a sawtooth wave, e.g. zigzagged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B29C66/81465—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed behind the other in a single row in the feed direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines

Definitions

  • the present invention relates to a method of manufacturing a package, and in particular to a method of manufacturing a tetrahedral package from a tube of packaging material.
  • the invention also relates to a web of packaging material for performing the manufacturing method.
  • the invention also relates to a package being made in the manufacturing method, and a filling machine for carrying out the method.
  • Tetra Classic® package a tetrahedron-shaped package.
  • This package is made by transversally sealing a tube of packaging material from different perpendicular directions, alternately.
  • the tetrahedral packages are somewhat difficult to pack in a space-efficient way in a modern distribution chain, and often require specific secondary packages to be developed, being adapted to handle the specific shape.
  • packages are often shaped like rectangular cuboids and these packages are hence very space effective. However, they do not provide any package differentiation.
  • a manufacturing method comprises the steps of a) reforming a flat web (10) of packaging material into a cylindrical tube, b) feeding said tube of packaging material in first direction (Z), c) filling said tube with a liquid food product, d) transversally sealing said tube, at regular intervals, into separate package volumes, wherein a longitudinal axis ( ⁇ , , Y 3 ) of every second transversal seal being parallel to each other, and a longitudinal axis (Yi , Y 2 ) of each adjacent transversal seal being perpendicular to each other, e) and wherein a longitudinal axis (Yi , Y 2 , Y 3 ) of each transversal seal is angled in a range between 15-30° in relation to a plane which is orthogonal to the longitudinal axis (Z) of the tube of packaging material.
  • the longitudinal axis (Yi , Y 2 , Y 3 ) of every transversal seal is angled 20-25° in relation to a plane that is orthogonal to the longitudinal axis (Z) of the tube of packaging material.
  • the invention also provides a web of packaging material for carrying out the method of claim 1 , said packaging material having a print that is specifically adapted to be manufactured according to the method of claim 1 .
  • the print of the web of packaging material is so devised such that a first area (30) that will be a part of a first transversal sealing comprising a right part (30a) being angled -20 to -25° in relation to a transversal direction of the web (10) being orthogonal to the feed direction (v) of the web (10), a central part (30b) being angled 20 to 25° in relation to a transversal direction of the web, and a left part (30c) being angled -20 to -25° in relation to a transversal direction of the web, and a second area (40) that will be a part of a second transversal sealing comprising a right part (40a) being angled 20 to 25° in relation to a transversal direction of the web, a central part (40b) being angled -20 to -25° in relation to a transversal direction of the web, and a left part (40c) being angled 20 to 25° in relation to a transversal
  • the web is configured such that the right part (40a) of the second area (40) extends a distance (X) further into the web than the right part (30a) of the first area (30), when measured transversally to the right edge (1 1 ) of the web, and a ratio between said distance (X) and the width (w) of the web (10) is about 0.20 to 0.22.
  • a print of the web of packaging material is configured such that the panels that will form isosceles triangles resemble the outside of a fruit or vegetable, and the other panels resemble the inside of the same fruit or vegetable.
  • a package is provided which is manufactured by the method of claim 1 .
  • a filling machine which carries out the method of claim 1 .
  • Figs. 1 -2 are perspective views of a package according to the invention.
  • Fig. 3 is a top view of a first and second package according to the invention.
  • Figs. 4-6 are exploded views of how packages can be assembled into groups
  • Figs. 7-8 are plan views of a packaging material according to the invention.
  • Figs. 9-10 are perspective views from different directions of a manufacturing process according to the invention.
  • Fig. 1 1 is a perspective view of a manufacturing process according to the prior art
  • Fig. 12 is a plan view of a double-width web of packaging material.
  • the present invention relates to a new method of manufacturing a tetrahedral package.
  • a package 1 for liquid food is shown schematically in Fig. 1 .
  • This is an idealized package that has flat side panels and distinct edges, but it should be understood that an actual package deviates slightly from this ideal shape when manufactured in an actual machine.
  • the side panels will typically be bulging outwardly slightly, and the edges will be slightly rounded.
  • the shown package 1 is made from a flat web of laminated carton, typically comprising an inner carton core, for giving a certain stiffness to the package, and inner and outer polymer layers.
  • the inner polymer layer makes the package liquid-tight and protects the carton layer, and it further provides a means of heat-sealing the package into its final shape.
  • the outer layer protects the carton from the moisture coming from the environment.
  • an aluminium layer can also be provided in the laminate, normally on the inside of the carton layer, to protect the food product from oxygen and/or light.
  • the aluminium layer is typically covered with an innermost polymer layer.
  • the package 1 has four corners A, B, C and D that define the inner space of the package, in which the content of the package 1 will be enclosed.
  • the package has four lateral edges, being labelled using the corners, i.e. ab, ac, bd, cd, and two end edges, ad and be. Two end fins, 2 and 3, project from said end edges.
  • the package 1 has four side panels, labelled by the corners that define them, i.e. ABC, ACD, ABD and BCD.
  • the package 1 according to the invention is shaped like an irregular tetrahedron.
  • Each lateral panel ABC, ACD, ABD and BCD is a right-angle triangle (indicated at corners A and B in Fig. 1 ).
  • two of the panels, ABC and ABD are right-angled isosceles triangles having the same size, and having one edge ab in common.
  • the other two panels, ACD and BCD also have the same size and they share the hypotenuse, cd.
  • a package 1 is shown having a longitudinal sealing 4 extending from the end fin 2 to the end fin 3.
  • the longitudinal sealing 4 is made during the forming of a flat web into a tube, before the package is filled with product and is divided into individual packages, in a way that is common in form-fill-seal machines, or in aseptic filling machines of the kind manufactured by the applicant, such as Tetra Pak® A3/Flex or Tetra Pak® A1 .
  • the packages 1 can be formed in two ways, the first being the mirror image of the second.
  • a first package 1 a is shown to the left, and a second package 1 b is shown to the right, having a mirrored shape to the first package 1 a.
  • a cube can be formed in two ways: 1 ) by combining two groups of 1 a-1 b-1 a prisms, or 2) by combining a group of 1 a-1 b-1 a group prism with a group of 1 b-1 a-1 b. In the second case, the same amount of first 1 a and second 1 b packages are used.
  • a conceptual filling machine 100 for producing tetrahedral packages is shown.
  • a reel 101 of packaging material is provided on a bobbin, and the packaging material is led out as a continuous web 102 of flat packaging material.
  • the packaging material is directed around a mandrel 103, through which a pipe 104 is also provided.
  • the mandrel helps shape the web of packaging material into a tube 106 of packaging material, and the opposite edges of the web 102 of packaging material are overlapping and are sealed together by a longitudinal sealing unit 105.
  • This is either a hot-air nozzle, which heats the opposite edges with warm sterile air, or is an inductor that heats the opposite edges of the packaging material by inducting a current in the aluminium foil, through the generation of a high-frequency magnetic field.
  • the inside edge of packaging material is provided with a plastic strip, in order to cover the inner carton core of the packaging material. This is normally performed at an earlier stage, before the tube forming. After the longitudinal sealing, the entire inner surface is covered by polymeric material.
  • the now sealed tube of packaging material is filled with liquid food product coming through pipe 104.
  • the filling level of the tube 106 can be monitored by having a floater inside tube 106, e.g. attached to the outside of the filling pipe, or it can be monitored by a free floating object whose position is detected from the outside.
  • the filled tube of packaging material is now transversally sealed by the sealing jaws.
  • the upper sealing jaws 107 are brought into contact with the tube 106 of packaging material, and have hence flattened said tube.
  • the heat generated by the heating jaws 107 (either by direct heating or by induction heating) heats up the polymeric material on the inside of the tube 106, and the pressure from the sealing jaws 107 make the inside surfaces adhere to each other.
  • sealing jaws 109 Downstream from the first sealing jaws 107, sealing jaws 109 can be seen in contact with the tube 106.
  • the sealing jaws 109 create a transversal sealing that is orthogonal to the transversal sealing created by sealing jaws 107.
  • the package that is shaped between sealing jaws 107 and 109 is tetrahedral, having a top fin and a bottom fin that are orthogonal to each other.
  • the sealing jaws 107, 109 are moved downward, feeding more packaging material to the mandrel and to the tube- forming section.
  • the sealing jaws 107 are then replaced by sealing jaws 108, which operate in a direction that is orthogonal to the direction that the sealing jaws 107 operate.
  • Sealing jaws 1 10 are also indicated at the position where the sealing jaws 109 operate, and sealing jaws 1 10 operate in a direction that is orthogonal to the direction that sealing jaws 108 operate. In this way, alternate transversal sealings are performed that are orthogonal to each other.
  • the sealing jaws 107-1 10 are all further orthogonal to the longitudinal direction of the tube of packaging material.
  • the tube forming of the packaging material is normally performed by having several forming rings, gradually shaping the flat web into a tube by acting on the outside of the packaging material, rather than having an inner mandrel, acting on the inside of the packaging material.
  • a part of a web 10 of packaging material is given, being of the laminated type as described above.
  • the flat web of packaging material is brought through a forming section, not shown, in which the web is formed into a cylindrical tube of packaging material.
  • the right hand part of the web as seen in Fig. 7, comprises an area that normally is not covered with any print.
  • This overlap area 5 is intended to be covered by a part of the left hand side of the packaging material, during the tube forming.
  • the overlapping edges are sealed together in a way known per se, typically by heating the edges and then pressing them together.
  • the overlap area 5 is normally provided with a plastic strip, not shown, which is sealed to the inside surface of the overlap area 5, and which strip protrudes from the right hand edge.
  • This strip serves to cover the inner carton edge of the packaging material, in a way known per se, which edge may otherwise absorb the liquid food product inside the package 1 a, 1 b.
  • Fig. 7 the edges of the different side panels of the packages 1 a, 1 b to be produced are marked with thin phantom lines.
  • the arrangement shown provides first packages 1 a and second packages 1 b alternatively from one tube of packaging material.
  • the edges of a first package 1 a and its corners are labelled in more detail.
  • the sealing jaws of a packaging machine will be operated at an angle, indicated by the a and ⁇ angles, being about 22.5° in relation to a line being perpendicular to the longitudinal axis of the tube of packaging material.
  • the phantom lines for the first package 1 a are repeated for the second package 1 b, but the lines are now mirrored along the longitudinal axis. This can be seen in more detail in Fig. 8, where the areas that will form parts of the transversal sealing zones are marked as hashed areas.
  • the two consecutive areas 30, 40 that will form the transversal sealing zones are indicated as hashed areas. This pattern will then be repeated throughout the web 10 of packaging material.
  • the feed direction of the packaging material is indicated with an arrow v. This means that the first area 30 is sealed together before second area 40, as seen in Fig. 8.
  • These areas 30, 40 will now be described in detail, as seen from the outside of the packaging material and looking in the direction of the feed direction v. This means that the right edge 1 1 will be shown to the left in Fig. 8, and the left edge 12 will be shown to the right in Fig. 8.
  • the first area 30 comprises three parts, a right part 30a which, starting from the right edge 1 1 of the packaging material, is angled -22.5° in relation to a line which is orthogonal to the feed direction v, a central part 30b which is angled 22.5°, and a left part 30c which is angled -22.5°.
  • the left part 30c ends at the same level as the beginning of the right part 30a, and this is intentional since these parts will be sealed together when the flat material is formed into a tube.
  • the central part 30b corresponds the full length of the final transversal sealing, and the sum of 30a and 30c correspond to the full length of the transversal sealing, and these parts will be brought together by the sealing jaws during operation (30b together with 30a+30c).
  • the second area 40 also comprises three parts, a right part 40a, starting from the right edge 1 1 , is angled 22.5° in relation to a line which is orthogonal to the feed direction v, a central part 40b which is angled -22.5°, and a left part 40c which is angled 22.5°.
  • the left part 40c ends at the same level as the beginning of the right part 40a, in order for those areas to match each other during forming of the tube.
  • the right part 30a of the first area 30 is shorter than the right part 40a of the second area 40.
  • the central part 30b of the first area 30 has the same length as the central part 40b of the second area 40, and the left part 30c of the first area 30 is longer than the left part 40c of the second area 40.
  • the right part 40a of the second area 40 hence extends further from the right hand edge 1 1 of the web 10 of packaging material than the right part 30a of the first area 30.
  • This distance i.e. the difference in extension of the parts 40a and 30a measured orthogonal to the right edge 1 1
  • the ratio between the distance X and the width of the packaging material (excluding the overlap area) is about 0.21 .
  • the left part 40c of the second area 40 extends less from the right edge 12 of the web than the left part 30c of the first area 30.
  • phantom lines that are seen in Fig. 7 are not normally visible on a packaging material for this type of package, it would be easy to verify if the packaging material was adapted for manufacturing this type of package.
  • One sign is the non-printed area where the transversal sealing zone will be (the zig-zag lines).
  • Another sign is if the print on the package is intended to be highlighted according to the final shape of the irregular tetrahedral-shaped package.
  • One design idea, that has been considered, is to have a special fruit or vegetable print on the panels.
  • the panels that will form the outer lateral walls of the cube, the panels shaped as isosceles triangles, will then be printed with an image of the outside of a fruit or vegetable, while the panels that will face towards the centre of the cube will have print corresponding to the inside of the same fruit or vegetable.
  • the individual packages will then look like a segment or a piece of the fruit or vegetable.
  • the print shows the outside of the item on the panels shaped as isosceles triangles, and the print on the other panels shows the inside of the item.
  • the pairs of sealing jaws are mounted for reciprocal motion toward and away from one another, as is indicated with arrows on each jaw.
  • the jaws of a pair when moved toward each other act to compress and flatten the tube of packaging material so as to adhere opposed interior surfaces of the packaging material together to achieve a seal of the tubular material along a seam line or sealing axis which intersects the longitudinal axis Z of the tubular material.
  • Adjacent pairs of jaws are so oriented that they meet and make a seal in planes which are perpendicular to one another, i.e. Yi is perpendicular to Y 2 , and alternate (every second) jaws of the filling machine operating to achieve seals within the same plane, i.e.
  • each pair of jaws is also so oriented when moving to and away from each other as to lie in a plane which has a predetermined angular relationship to the length of the tube of packaging material so that the longitudinal axis Yi to Y 4 of the transversal sealing achieved by each pair of jaws has the same predetermined angular relationship to the longitudinal axis Z of the tube of packaging material.
  • each sealing jaw is angled 22.5° compared to the traditionally used sealing jaw. This will lead to transversal sealing that will have a longitudinal axis Y n that is angled 22.5° in relation to a plane that is orthogonal to the longitudinal axis of the tube of packaging material.
  • the longitudinal spacing of one pair of jaws from another, measured along the longitudinal axis of the tube of packaging material, is uniform.
  • the spacing between adjacent pairs of jaws is approximately 1 .4 times the length of the seam or sealing line made by operation of a pair of jaws, measured between the centres of the sealing jaws. However, this spacing depends on the width of the sealing zone.
  • the angle of inclination between the longitudinal axis of the transversal sealing Y n and a plane that is orthogonal to the longitudinal axis of the tube of packaging material is approximately 22.5°.
  • jaws 20a, 20c, 20e perform the same movement along the same plane and with the same angle.
  • Jaws 20b, 20d perform the same movement along the same plane and with the same angle, but the direction of movement towards the tube of packaging material is perpendicular to the reciprocating movement of the jaws 20a, 20c, 20e. This means that the planes of the transversal seals made with jaws 20a, 20c, 20e are
  • a longitudinal central axis Z of the tube of packaging material has been arranged, which in normal production is vertical. All the transversal seals, made with the pairs of sealing jaws, intersect said longitudinal axis, and said axis Z also lies in the same plane as the planes of the transversal seals. The transversal seals hence lie in a vertical plane passing through the central axis.
  • the longitudinal axes Y n of the transversal seals are angled 22.5° in relation to a plane that is orthogonal to the longitudinal direction of the tube.
  • a plane defined by Yi and Z is perpendicular to a plane defined by Y 2 and Z.
  • the seal is angled 22.5° upward as you follow the seal from the left to the right, or in the direction into the drawing.
  • the seal in also angled 22.5° upward as you follow the seal from right to left, or in the direction into the drawing.
  • first packages 1 a and second packages 1 b being mirrored versions of the first packages, are made alternately, one after the other, in a continuous process.
  • Fig. 9 is only a schematic representation of a jaw system.
  • This jaw system can either be realised by using two pairs of chain assemblies, on which assemblies many jaws can be mounted. This is the typical setup that is used for the filling machines that manufacture Tetra Classic® packages.
  • the jaw system can also be realised by having only two pairs of jaws which are driven by some drive means, similar to what is used in the Tetra Pak A3/Flex filling machine or TBA/19 filling machine.
  • the reference numerals 20a, 20c, 20e refer to the same jaw
  • reference numeral 20b, 20d refer to the same jaw, but they are shown in the position in which they would have made the transversal seal.
  • each pair of jaws 20a-e in making a transversal seal across the tube of packaging material is making in the same operation the top sealed edge for one of the individual packages 1 a, 1 b and the bottom sealed edge for another of the individual packages 1 b, 1 a, the tube of packaging material being subsequently cut along approximately the median line of each transversal seal by any suitable means, not shown, to separate the strip material into individual packages 1 a, 1 b.
  • the tube of packaging material is stationary and the jaws make the transversal sealings at different positions.
  • each sealing jaw makes contact with the tube of packaging material at an almost constant position (position along Z), and the tube is then pulled down allowing for a new sealing jaw to again make a transversal seal at the same position along Z as the previous jaw.
  • This pulling action of the sealing jaws on the tube is what feeds the web of packaging material through the machine.
  • additional feeding rollers are provided further upstream in the filling machine, in order to reduce the tension in the web.
  • Fig. 10 the same tube of packaging material as in Fig. 9 is shown from a different direction.
  • Fig. 12 the pattern showing the positions and edges of the finished packages are shown, and here the pattern is repeated twice in the transversal direction. This means that web is now twice as wide as required for making the tube of packaging material. Two straight dashed lines are indicated, and the distance w between them corresponds to the normal width of the packaging material, not including the overlap area. It can be seen that the pattern between the two straight lines fit together, such that the sealing areas 30, 40 will align in the tube form.
  • a filling machine for carrying out the method as described above is envisioned.
  • This filling machine would comprise similar features to already existing filling machines on the market, such as the Tetra Pak® A1 filling machine for Tetra Classic® aseptic packages.
  • the main difference with this new filling machine, in relation to the Tetra Pak® A1 machine is that the sealing jaws are angled 20-25°, or 22.5°, in relation to a plane that is orthogonal to the longitudinal direction of the tube of packaging material, as it is fed during operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Packages (AREA)
  • Package Closures (AREA)

Abstract

The present invention relates to a method of producing packages from a tube of packaging material for a liquid food product, comprising the steps of reforming a flat web (10) of packaging material into a cylindrical tube, feeding said tube of packaging material in first direction (Z), filling said tube with a liquid food product, transversally sealing said tube, at regular intervals, into separate package volumes, wherein a longitudinal axis (Y1, Y3) of every second transversal seal being parallel to each other, and a longitudinal axis (Y1, Y2) of each adjacent transversal seal being perpendicular to each other, and wherein a longitudinal axis (Y1, Y2, Y3) of each transversal seal is angled in a range between 15-30° in relation to a plane which is orthogonal to the longitudinal axis (Z) of the tube of packaging material. The invention also relates to a packaging material for use in the method, a package being produced with the method, and a filling machine performing the method.

Description

A method of manufacturing a package, a web of packaging material, a package and a filling machine
Field of the invention
The present invention relates to a method of manufacturing a package, and in particular to a method of manufacturing a tetrahedral package from a tube of packaging material. The invention also relates to a web of packaging material for performing the manufacturing method. The invention also relates to a package being made in the manufacturing method, and a filling machine for carrying out the method.
Background of the invention
Packages for liquid food have been manufactured for many years. One of the first aseptic packages to be manufactured for ambient distribution and storing was the Tetra Classic® package - a tetrahedron-shaped package. This package is made by transversally sealing a tube of packaging material from different perpendicular directions, alternately. However, the tetrahedral packages are somewhat difficult to pack in a space-efficient way in a modern distribution chain, and often require specific secondary packages to be developed, being adapted to handle the specific shape. Today, packages are often shaped like rectangular cuboids and these packages are hence very space effective. However, they do not provide any package differentiation.
In US 3,925,959, a manufacturing process for obtaining irregular tetrahedral packages is shown. These packages are made in two mirrored versions, and six such packages can be combined for creating a cube. However, this manufacturing method requires making first one version of the package, and resetting the machine for making the mirrored version of the package, or alternatively using two different machines. This is either time-consuming or costly, and in any case cumbersome.
Summary of the invention
It is hence an object of the present invention to alleviate or mitigate at least some of the problems of the prior art, by introducing a manufacturing method according to claim 1 , wherein the method comprises the steps of a) reforming a flat web (10) of packaging material into a cylindrical tube, b) feeding said tube of packaging material in first direction (Z), c) filling said tube with a liquid food product, d) transversally sealing said tube, at regular intervals, into separate package volumes, wherein a longitudinal axis (Υ, , Y3) of every second transversal seal being parallel to each other, and a longitudinal axis (Yi , Y2) of each adjacent transversal seal being perpendicular to each other, e) and wherein a longitudinal axis (Yi , Y2, Y3) of each transversal seal is angled in a range between 15-30° in relation to a plane which is orthogonal to the longitudinal axis (Z) of the tube of packaging material. With this method, packages are formed that can be packed in a space-efficient manner.
In a further aspect of the invention, the longitudinal axis (Yi , Y2, Y3) of every transversal seal is angled 20-25° in relation to a plane that is orthogonal to the longitudinal axis (Z) of the tube of packaging material. The invention also provides a web of packaging material for carrying out the method of claim 1 , said packaging material having a print that is specifically adapted to be manufactured according to the method of claim 1 .
In a further aspect of the invention, the print of the web of packaging material is so devised such that a first area (30) that will be a part of a first transversal sealing comprising a right part (30a) being angled -20 to -25° in relation to a transversal direction of the web (10) being orthogonal to the feed direction (v) of the web (10), a central part (30b) being angled 20 to 25° in relation to a transversal direction of the web, and a left part (30c) being angled -20 to -25° in relation to a transversal direction of the web, and a second area (40) that will be a part of a second transversal sealing comprising a right part (40a) being angled 20 to 25° in relation to a transversal direction of the web, a central part (40b) being angled -20 to -25° in relation to a transversal direction of the web, and a left part (40c) being angled 20 to 25° in relation to a transversal direction of the web.
In a further aspect of the invention, the web is configured such that the right part (40a) of the second area (40) extends a distance (X) further into the web than the right part (30a) of the first area (30), when measured transversally to the right edge (1 1 ) of the web, and a ratio between said distance (X) and the width (w) of the web (10) is about 0.20 to 0.22.
In a further aspect of the invention, a print of the web of packaging material is configured such that the panels that will form isosceles triangles resemble the outside of a fruit or vegetable, and the other panels resemble the inside of the same fruit or vegetable.
In a further aspect of the invention, a package is provided which is manufactured by the method of claim 1 .
In a further aspect of the invention, a filling machine is provided which carries out the method of claim 1 .
Brief description of the drawings
The description of the invention will be more easily understood when read together with the accompanying drawings, in which
Figs. 1 -2 are perspective views of a package according to the invention,
Fig. 3 is a top view of a first and second package according to the invention,
Figs. 4-6 are exploded views of how packages can be assembled into groups,
Figs. 7-8 are plan views of a packaging material according to the invention,
Figs. 9-10 are perspective views from different directions of a manufacturing process according to the invention,
Fig. 1 1 is a perspective view of a manufacturing process according to the prior art, and Fig. 12 is a plan view of a double-width web of packaging material.
Detailed description
The present invention relates to a new method of manufacturing a tetrahedral package. A package 1 for liquid food is shown schematically in Fig. 1 . This is an idealized package that has flat side panels and distinct edges, but it should be understood that an actual package deviates slightly from this ideal shape when manufactured in an actual machine. The side panels will typically be bulging outwardly slightly, and the edges will be slightly rounded.
In Fig. 1 , the shown package 1 is made from a flat web of laminated carton, typically comprising an inner carton core, for giving a certain stiffness to the package, and inner and outer polymer layers. The inner polymer layer makes the package liquid-tight and protects the carton layer, and it further provides a means of heat-sealing the package into its final shape. The outer layer protects the carton from the moisture coming from the environment. In some cases, an aluminium layer can also be provided in the laminate, normally on the inside of the carton layer, to protect the food product from oxygen and/or light. The aluminium layer is typically covered with an innermost polymer layer.
The package 1 has four corners A, B, C and D that define the inner space of the package, in which the content of the package 1 will be enclosed. The package has four lateral edges, being labelled using the corners, i.e. ab, ac, bd, cd, and two end edges, ad and be. Two end fins, 2 and 3, project from said end edges. The package 1 has four side panels, labelled by the corners that define them, i.e. ABC, ACD, ABD and BCD.
The package 1 according to the invention is shaped like an irregular tetrahedron. Each lateral panel ABC, ACD, ABD and BCD is a right-angle triangle (indicated at corners A and B in Fig. 1 ). Furthermore, two of the panels, ABC and ABD, are right-angled isosceles triangles having the same size, and having one edge ab in common. The other two panels, ACD and BCD, also have the same size and they share the hypotenuse, cd.
In Fig. 2, a package 1 is shown having a longitudinal sealing 4 extending from the end fin 2 to the end fin 3. The longitudinal sealing 4 is made during the forming of a flat web into a tube, before the package is filled with product and is divided into individual packages, in a way that is common in form-fill-seal machines, or in aseptic filling machines of the kind manufactured by the applicant, such as Tetra Pak® A3/Flex or Tetra Pak® A1 .
The packages 1 , being defined as above, can be formed in two ways, the first being the mirror image of the second. In Fig. 3, a first package 1 a is shown to the left, and a second package 1 b is shown to the right, having a mirrored shape to the first package 1 a. It is possible to combine three packages, two first packages 1 a and one second package 1 b, into a triangular prism, see Figs. 4-6. Two such triangular prisms can be combined into a cube. A cube can be formed in two ways: 1 ) by combining two groups of 1 a-1 b-1 a prisms, or 2) by combining a group of 1 a-1 b-1 a group prism with a group of 1 b-1 a-1 b. In the second case, the same amount of first 1 a and second 1 b packages are used.
The prior art method of manufacturing tetrahedral packages will first be described. In Fig. 1 1 , a conceptual filling machine 100 for producing tetrahedral packages is shown. In the machine 100, a reel 101 of packaging material is provided on a bobbin, and the packaging material is led out as a continuous web 102 of flat packaging material. The packaging material is directed around a mandrel 103, through which a pipe 104 is also provided. The mandrel helps shape the web of packaging material into a tube 106 of packaging material, and the opposite edges of the web 102 of packaging material are overlapping and are sealed together by a longitudinal sealing unit 105. This is either a hot-air nozzle, which heats the opposite edges with warm sterile air, or is an inductor that heats the opposite edges of the packaging material by inducting a current in the aluminium foil, through the generation of a high-frequency magnetic field. The inside edge of packaging material is provided with a plastic strip, in order to cover the inner carton core of the packaging material. This is normally performed at an earlier stage, before the tube forming. After the longitudinal sealing, the entire inner surface is covered by polymeric material.
The now sealed tube of packaging material is filled with liquid food product coming through pipe 104. The filling level of the tube 106 can be monitored by having a floater inside tube 106, e.g. attached to the outside of the filling pipe, or it can be monitored by a free floating object whose position is detected from the outside.
The filled tube of packaging material is now transversally sealed by the sealing jaws. In Fig. 1 1 , the upper sealing jaws 107 are brought into contact with the tube 106 of packaging material, and have hence flattened said tube. The heat generated by the heating jaws 107 (either by direct heating or by induction heating) heats up the polymeric material on the inside of the tube 106, and the pressure from the sealing jaws 107 make the inside surfaces adhere to each other. Downstream from the first sealing jaws 107, sealing jaws 109 can be seen in contact with the tube 106. As can be seen in Fig. 1 1 , the sealing jaws 109 create a transversal sealing that is orthogonal to the transversal sealing created by sealing jaws 107. The package that is shaped between sealing jaws 107 and 109 is tetrahedral, having a top fin and a bottom fin that are orthogonal to each other. In operation, the sealing jaws 107, 109 are moved downward, feeding more packaging material to the mandrel and to the tube- forming section. The sealing jaws 107 are then replaced by sealing jaws 108, which operate in a direction that is orthogonal to the direction that the sealing jaws 107 operate. Sealing jaws 1 10 are also indicated at the position where the sealing jaws 109 operate, and sealing jaws 1 10 operate in a direction that is orthogonal to the direction that sealing jaws 108 operate. In this way, alternate transversal sealings are performed that are orthogonal to each other. The sealing jaws 107-1 10 are all further orthogonal to the longitudinal direction of the tube of packaging material. Today, the tube forming of the packaging material is normally performed by having several forming rings, gradually shaping the flat web into a tube by acting on the outside of the packaging material, rather than having an inner mandrel, acting on the inside of the packaging material.
Now, the method of manufacturing the packages of the invention will be described. In Fig. 7, a part of a web 10 of packaging material is given, being of the laminated type as described above. The flat web of packaging material is brought through a forming section, not shown, in which the web is formed into a cylindrical tube of packaging material. The right hand part of the web, as seen in Fig. 7, comprises an area that normally is not covered with any print. This overlap area 5 is intended to be covered by a part of the left hand side of the packaging material, during the tube forming. The overlapping edges are sealed together in a way known per se, typically by heating the edges and then pressing them together. The overlap area 5 is normally provided with a plastic strip, not shown, which is sealed to the inside surface of the overlap area 5, and which strip protrudes from the right hand edge. This strip serves to cover the inner carton edge of the packaging material, in a way known per se, which edge may otherwise absorb the liquid food product inside the package 1 a, 1 b.
In Fig. 7, the edges of the different side panels of the packages 1 a, 1 b to be produced are marked with thin phantom lines. The arrangement shown provides first packages 1 a and second packages 1 b alternatively from one tube of packaging material. The edges of a first package 1 a and its corners are labelled in more detail. The sealing jaws of a packaging machine will be operated at an angle, indicated by the a and β angles, being about 22.5° in relation to a line being perpendicular to the longitudinal axis of the tube of packaging material. The phantom lines for the first package 1 a are repeated for the second package 1 b, but the lines are now mirrored along the longitudinal axis. This can be seen in more detail in Fig. 8, where the areas that will form parts of the transversal sealing zones are marked as hashed areas.
In Fig. 8, the two consecutive areas 30, 40 that will form the transversal sealing zones are indicated as hashed areas. This pattern will then be repeated throughout the web 10 of packaging material. In Fig. 8, the feed direction of the packaging material is indicated with an arrow v. This means that the first area 30 is sealed together before second area 40, as seen in Fig. 8. These areas 30, 40 will now be described in detail, as seen from the outside of the packaging material and looking in the direction of the feed direction v. This means that the right edge 1 1 will be shown to the left in Fig. 8, and the left edge 12 will be shown to the right in Fig. 8.
The first area 30 comprises three parts, a right part 30a which, starting from the right edge 1 1 of the packaging material, is angled -22.5° in relation to a line which is orthogonal to the feed direction v, a central part 30b which is angled 22.5°, and a left part 30c which is angled -22.5°. The left part 30c ends at the same level as the beginning of the right part 30a, and this is intentional since these parts will be sealed together when the flat material is formed into a tube. The central part 30b corresponds the full length of the final transversal sealing, and the sum of 30a and 30c correspond to the full length of the transversal sealing, and these parts will be brought together by the sealing jaws during operation (30b together with 30a+30c).
The second area 40 also comprises three parts, a right part 40a, starting from the right edge 1 1 , is angled 22.5° in relation to a line which is orthogonal to the feed direction v, a central part 40b which is angled -22.5°, and a left part 40c which is angled 22.5°. The left part 40c ends at the same level as the beginning of the right part 40a, in order for those areas to match each other during forming of the tube. The right part 30a of the first area 30 is shorter than the right part 40a of the second area 40. The central part 30b of the first area 30 has the same length as the central part 40b of the second area 40, and the left part 30c of the first area 30 is longer than the left part 40c of the second area 40.
The right part 40a of the second area 40 hence extends further from the right hand edge 1 1 of the web 10 of packaging material than the right part 30a of the first area 30. This distance (i.e. the difference in extension of the parts 40a and 30a measured orthogonal to the right edge 1 1 ) is indicated as X. The ratio between the distance X and the width of the packaging material (excluding the overlap area) is about 0.21 . Correspondingly, the left part 40c of the second area 40 extends less from the right edge 12 of the web than the left part 30c of the first area 30.
Even though the phantom lines that are seen in Fig. 7 are not normally visible on a packaging material for this type of package, it would be easy to verify if the packaging material was adapted for manufacturing this type of package. One sign is the non-printed area where the transversal sealing zone will be (the zig-zag lines). Another sign is if the print on the package is intended to be highlighted according to the final shape of the irregular tetrahedral-shaped package. One design idea, that has been considered, is to have a special fruit or vegetable print on the panels. In order to mimic a real fruit or vegetable, the panels that will form the outer lateral walls of the cube, the panels shaped as isosceles triangles, will then be printed with an image of the outside of a fruit or vegetable, while the panels that will face towards the centre of the cube will have print corresponding to the inside of the same fruit or vegetable. The individual packages will then look like a segment or a piece of the fruit or vegetable. Also other items can be envisioned, where the print shows the outside of the item on the panels shaped as isosceles triangles, and the print on the other panels shows the inside of the item.
With reference now to Fig. 9, the pairs of sealing jaws are mounted for reciprocal motion toward and away from one another, as is indicated with arrows on each jaw. The jaws of a pair when moved toward each other act to compress and flatten the tube of packaging material so as to adhere opposed interior surfaces of the packaging material together to achieve a seal of the tubular material along a seam line or sealing axis which intersects the longitudinal axis Z of the tubular material. Adjacent pairs of jaws are so oriented that they meet and make a seal in planes which are perpendicular to one another, i.e. Yi is perpendicular to Y2, and alternate (every second) jaws of the filling machine operating to achieve seals within the same plane, i.e. Yi is parallel to Y3. In order to achieve the unique irregularity of the tetrahedral shape of the packages 1 a, 1 b, each pair of jaws is also so oriented when moving to and away from each other as to lie in a plane which has a predetermined angular relationship to the length of the tube of packaging material so that the longitudinal axis Yi to Y4 of the transversal sealing achieved by each pair of jaws has the same predetermined angular relationship to the longitudinal axis Z of the tube of packaging material. In comparison to the prior art method, as can be seen in Fig. 1 1 , each sealing jaw is angled 22.5° compared to the traditionally used sealing jaw. This will lead to transversal sealing that will have a longitudinal axis Yn that is angled 22.5° in relation to a plane that is orthogonal to the longitudinal axis of the tube of packaging material.
The longitudinal spacing of one pair of jaws from another, measured along the longitudinal axis of the tube of packaging material, is uniform. In making the packages 1 a, 1 b, the spacing between adjacent pairs of jaws is approximately 1 .4 times the length of the seam or sealing line made by operation of a pair of jaws, measured between the centres of the sealing jaws. However, this spacing depends on the width of the sealing zone. The angle of inclination between the longitudinal axis of the transversal sealing Yn and a plane that is orthogonal to the longitudinal axis of the tube of packaging material is approximately 22.5°. During a sealing step, jaws 20a, 20c, 20e perform the same movement along the same plane and with the same angle. Jaws 20b, 20d perform the same movement along the same plane and with the same angle, but the direction of movement towards the tube of packaging material is perpendicular to the reciprocating movement of the jaws 20a, 20c, 20e. This means that the planes of the transversal seals made with jaws 20a, 20c, 20e are
perpendicular to the planes of the transversal seals made with jaws 20b, 20d.
In Fig. 9, a longitudinal central axis Z of the tube of packaging material has been arranged, which in normal production is vertical. All the transversal seals, made with the pairs of sealing jaws, intersect said longitudinal axis, and said axis Z also lies in the same plane as the planes of the transversal seals. The transversal seals hence lie in a vertical plane passing through the central axis. The longitudinal axes Yn of the transversal seals are angled 22.5° in relation to a plane that is orthogonal to the longitudinal direction of the tube. A plane defined by Yi and Z is perpendicular to a plane defined by Y2 and Z. Looking at the top transversal seal, as made by sealing jaws 20a, the seal is angled 22.5° upward as you follow the seal from the left to the right, or in the direction into the drawing. Looking at the next transversal, as made by sealing jaws 20b, the seal in also angled 22.5° upward as you follow the seal from right to left, or in the direction into the drawing.
With this jaw arrangement, first packages 1 a and second packages 1 b, being mirrored versions of the first packages, are made alternately, one after the other, in a continuous process.
Fig. 9 is only a schematic representation of a jaw system. This jaw system can either be realised by using two pairs of chain assemblies, on which assemblies many jaws can be mounted. This is the typical setup that is used for the filling machines that manufacture Tetra Classic® packages. The jaw system can also be realised by having only two pairs of jaws which are driven by some drive means, similar to what is used in the Tetra Pak A3/Flex filling machine or TBA/19 filling machine. In such case, the reference numerals 20a, 20c, 20e refer to the same jaw, and reference numeral 20b, 20d refer to the same jaw, but they are shown in the position in which they would have made the transversal seal.
It will of course be understood that each pair of jaws 20a-e in making a transversal seal across the tube of packaging material is making in the same operation the top sealed edge for one of the individual packages 1 a, 1 b and the bottom sealed edge for another of the individual packages 1 b, 1 a, the tube of packaging material being subsequently cut along approximately the median line of each transversal seal by any suitable means, not shown, to separate the strip material into individual packages 1 a, 1 b. In Fig. 9, it may appear that the tube of packaging material is stationary and the jaws make the transversal sealings at different positions. This is not the case in normal production, however, where each sealing jaw makes contact with the tube of packaging material at an almost constant position (position along Z), and the tube is then pulled down allowing for a new sealing jaw to again make a transversal seal at the same position along Z as the previous jaw. This pulling action of the sealing jaws on the tube is what feeds the web of packaging material through the machine. Sometimes, additional feeding rollers are provided further upstream in the filling machine, in order to reduce the tension in the web.
In Fig. 10, the same tube of packaging material as in Fig. 9 is shown from a different direction.
In Fig. 12, the pattern showing the positions and edges of the finished packages are shown, and here the pattern is repeated twice in the transversal direction. This means that web is now twice as wide as required for making the tube of packaging material. Two straight dashed lines are indicated, and the distance w between them corresponds to the normal width of the packaging material, not including the overlap area. It can be seen that the pattern between the two straight lines fit together, such that the sealing areas 30, 40 will align in the tube form.
If the two lines are moved left or right, without changing the distance w therebetween, this will correspond to twisting the tube inside the jaw system shown in Fig. 9. If the tube is twisted inside the jaw system, this will hence affect where the longitudinal sealing will end up on the final packages, namely along the dashed straight lines. It will be possible to twist the tube, and still make functional packages, but there might be problems at certain areas. If the tube 10 of packaging material is twisted such that the dashed lines pass a transition between a right part 30a, 40a of the first 30 and second area 40 and a central part 30b, 40b, the longitudinal sealing will be located at a corner of a package - this is possible but should be avoided.
A filling machine for carrying out the method as described above is envisioned. This filling machine would comprise similar features to already existing filling machines on the market, such as the Tetra Pak® A1 filling machine for Tetra Classic® aseptic packages. The main difference with this new filling machine, in relation to the Tetra Pak® A1 machine is that the sealing jaws are angled 20-25°, or 22.5°, in relation to a plane that is orthogonal to the longitudinal direction of the tube of packaging material, as it is fed during operation.

Claims

1 . Method of producing packages from a tube of packaging material for a liquid food product, comprising the steps of
a) reforming a flat web (10) of packaging material into a cylindrical tube, b) feeding said tube of packaging material in a longitudinal direction (Z) of said tube,
c) filling said tube with a liquid food product,
d) transversally sealing said tube, at regular intervals, into separate package volumes, wherein a longitudinal axis (Yi , Y3) of every second transversal seal being parallel to each other, and a longitudinal axis (Yi , Y2) of each adjacent transversal seal being perpendicular to each other, e) and wherein a longitudinal axis (Yi , Y2, Y3) of each transversal seal is angled in a range between 15-30 ° in relation to a plane which is orthogonal to the longitudinal axis (Z) of the tube of packaging material.
2. Method according to claim 1 , wherein the longitudinal axis (Yi , Y2, Y3) of every
transversal seal is angled 20-25° in relation to a plane that is orthogonal to the longitudinal axis (Z) of the tube of packaging material.
3. Web (10) of packaging material having a print that is adapted to be made according to the method of claim 1 .
4. Web (10) of packaging material according to claim 3, wherein a first area (30) that will be a part of a first transversal sealing comprising a right part (30a) being angled - -20 to -25° in relation to a transversal direction of the web (10) being orthogonal to the feed direction (v) of the web (10), a central part (30b) being angled 20 to 25° in relation to a transversal direction of the web, and a left part (30c) being angled -20 to -25° in relation to a transversal direction of the web, and a second part (40) that will be a part of a second transversal sealing comprising a right part (40a) being angled 20 to 25° in relation to a transversal direction of the web, a central part (40b) being angled -20 to -25° in relation to a transversal direction of the web, and a left part (40c) being angled 20 to 25° in relation to a transversal direction of the web.
5. Web (10) according to claim 4, wherein the right part (40a) of the second area (40) extends a distance (X) further into the web than the right part (30a) of the first area (30), when measured transversally to the right edge (1 1 ) of the web, and a ratio between said distance (X) and the width (w) of the web (10) is about 0.20 to 0.22.
6. Web of packaging material according to any of claims 3-5, wherein the print on the panels that will form isosceles triangles resembles the outside of a fruit or vegetable, and the print on the other panels resembles the inside of the same fruit or vegetable.
7. Package being manufactured according to the method of claim 1 .
8. Filling machine for producing liquid food packages, performing the method according to claim 1 .
PCT/EP2014/055820 2013-03-28 2014-03-24 A method of manufacturing a package, a web of packaging material, a package and a filling machine WO2014154623A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
RU2015145832A RU2653072C2 (en) 2013-03-28 2014-03-24 Method of manufacturing package, web of packaging material, package and filling machine
CN201480019072.9A CN105073582B (en) 2013-03-28 2014-03-24 A method of manufacturing a package, a web of packaging material, a package and a filling machine
US14/780,969 US10315790B2 (en) 2013-03-28 2014-03-24 Method and apparatus for manufacturing a tetrahedral package
BR112015021694-3A BR112015021694B1 (en) 2013-03-28 2014-03-24 method for producing packaging from a tube of packaging material to a liquid food product, continuous sheet of packaging material, packaging, and, filling machine to produce liquid food packaging
EP14714955.3A EP2978673B1 (en) 2013-03-28 2014-03-24 A method of manufacturing a package, a web of packaging material, a package and a filling machine
MX2015013456A MX366821B (en) 2013-03-28 2014-03-24 A method of manufacturing a package, a web of packaging material, a package and a filling machine.
JP2016504608A JP6293863B2 (en) 2013-03-28 2014-03-24 Package manufacturing method, package material web, package, and filling machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1350404 2013-03-28
SE1350404-8 2013-03-28

Publications (1)

Publication Number Publication Date
WO2014154623A1 true WO2014154623A1 (en) 2014-10-02

Family

ID=50434167

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/055820 WO2014154623A1 (en) 2013-03-28 2014-03-24 A method of manufacturing a package, a web of packaging material, a package and a filling machine

Country Status (8)

Country Link
US (1) US10315790B2 (en)
EP (1) EP2978673B1 (en)
JP (1) JP6293863B2 (en)
CN (1) CN105073582B (en)
BR (1) BR112015021694B1 (en)
MX (1) MX366821B (en)
RU (1) RU2653072C2 (en)
WO (1) WO2014154623A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3339003A1 (en) * 2016-12-21 2018-06-27 Tetra Laval Holdings & Finance S.A. A method for providing transversal seals to a tube of packaging material, and a sealing jaw assembly
WO2018114311A1 (en) 2016-12-21 2018-06-28 Tetra Laval Holdings & Finance S.A. A device for aligning a number of packages
EP3339197B1 (en) * 2016-12-21 2020-11-04 Tetra Laval Holdings & Finance S.A. A method for providing transversal seals to a tube of packaging material, and a sealing jaw assembly
US11731820B2 (en) 2018-07-06 2023-08-22 Tetra Laval Holdings & Finance S.A. Packaging material and method for providing a packaging material

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3219630B1 (en) * 2016-03-17 2018-09-26 Tetra Laval Holdings & Finance SA A method of operating a packaging machine for producing sealed packages
JP2018034868A (en) * 2016-09-01 2018-03-08 株式会社フジシール Pyramid package
CN108454963A (en) * 2016-12-21 2018-08-28 利乐拉瓦尔集团及财务有限公司 Packaging location devices, systems, and methods for providing uniform distance in make-up room

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925959A (en) 1967-09-22 1975-12-16 Gen Foods Corp Tetrahedral packaging means and method of making same
US20030220040A1 (en) * 2002-05-21 2003-11-27 Tom Helms Floral sleeve of non-woven fabric
WO2009064384A2 (en) * 2007-11-15 2009-05-22 Milliken & Company Packaging machine and packages made therewith
DE102009003029A1 (en) * 2008-07-15 2010-01-21 Robert Bosch Gmbh Device for production of tubular bag packing from packaging-material web, has sealing devices provided for producing base and head seams, where one of devices is arranged in angle for other device to form head seam in angle for base seam
US20100132315A1 (en) * 2008-11-28 2010-06-03 Gunn Jonathan R Vertical, form, fill and seal machine with heating element resistant to thermal cycling
WO2010136282A1 (en) * 2009-05-26 2010-12-02 Unilever Nv A method and apparatus for forming, filling and sealing pouches with a non-linear edge

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090175A (en) * 1958-06-10 1963-05-21 Hermorion Ltd Tetrahedron producing method and apparatus
FR1300062A (en) * 1961-09-13 1962-07-27 Unipol S A Continuous manufacturing process of pyramid packaging
US3347363A (en) 1964-12-23 1967-10-17 Gen Foods Corp Tetrahedral packaging means and method of making same
NL155780B (en) * 1974-06-17 1978-02-15 Leer Koninklijke Emballage HOLDER FOR LIQUIDS AND METHOD FOR MANUFACTURING THE HOLDER
JPS6396003A (en) * 1986-09-30 1988-04-26 出光石油化学株式会社 Production unit for hollow bag
US4744202A (en) * 1986-11-14 1988-05-17 Milliken Research Corporation Apparatus and method for maintaining uniform, registration in a packaging machine
JPH03124519A (en) * 1989-09-29 1991-05-28 Kataoka Bussan Kk Manufacture of tea bag and apparatus
AU7808891A (en) * 1991-06-14 1992-12-03 Kataoka Bussan Kabushiki Kaisha Method and apparatus for making triangular pyramidal tea bags
JP3432833B2 (en) * 1991-12-30 2003-08-04 不双産業株式会社 Tetra-shaped package manufacturing equipment
US5220771A (en) * 1992-04-14 1993-06-22 Milliken Research Corporation Tetrahedron volume control
GB9222107D0 (en) * 1992-10-21 1992-12-02 Harrison Simpkin Eng Limited Form,fill and seal packaging
US5727366A (en) * 1997-04-10 1998-03-17 Milliken Research Corporation Registration control
EP0922652A1 (en) * 1997-12-05 1999-06-16 Wolfgang Jobmann Chain of individual packages
SE521162C2 (en) * 2000-04-20 2003-10-07 Tetra Laval Holdings & Finance A packaging machine and a method related thereto
SE521923C2 (en) * 2003-03-05 2003-12-16 Tetra Laval Holdings & Finance Packaging container and packaging material with a fastening strip against the inside
JP2005001708A (en) * 2003-06-11 2005-01-06 Orihiro Engineering Co Ltd Filling/packing machine and horizontal sealing device of the same
EP1510461A1 (en) * 2003-08-25 2005-03-02 CFS Weert B.V. Tubular bagging machine
US7389908B2 (en) * 2004-04-22 2008-06-24 Patrice Cohen Three-dimensional display form and blank
US8608381B2 (en) * 2005-05-26 2013-12-17 General Mills, Inc. Easy pour bag
JP3997251B1 (en) * 2006-04-13 2007-10-24 有限会社水戸菜園 Package
US7437249B2 (en) * 2006-06-30 2008-10-14 Agilent Technologies, Inc. Methods and systems for detrending signal intensity data from chemical arrays
US7546721B2 (en) * 2007-10-23 2009-06-16 Heinz North America (A Division Of H.J. Heniz Company) Method of making a tetrahedron package
CN101686405A (en) * 2008-09-25 2010-03-31 深圳Tcl新技术有限公司 Method and system for providing diagnosis information of commercial television set

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925959A (en) 1967-09-22 1975-12-16 Gen Foods Corp Tetrahedral packaging means and method of making same
US20030220040A1 (en) * 2002-05-21 2003-11-27 Tom Helms Floral sleeve of non-woven fabric
WO2009064384A2 (en) * 2007-11-15 2009-05-22 Milliken & Company Packaging machine and packages made therewith
DE102009003029A1 (en) * 2008-07-15 2010-01-21 Robert Bosch Gmbh Device for production of tubular bag packing from packaging-material web, has sealing devices provided for producing base and head seams, where one of devices is arranged in angle for other device to form head seam in angle for base seam
US20100132315A1 (en) * 2008-11-28 2010-06-03 Gunn Jonathan R Vertical, form, fill and seal machine with heating element resistant to thermal cycling
WO2010136282A1 (en) * 2009-05-26 2010-12-02 Unilever Nv A method and apparatus for forming, filling and sealing pouches with a non-linear edge

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3339003A1 (en) * 2016-12-21 2018-06-27 Tetra Laval Holdings & Finance S.A. A method for providing transversal seals to a tube of packaging material, and a sealing jaw assembly
WO2018114310A1 (en) 2016-12-21 2018-06-28 Tetra Laval Holdings & Finance S.A. A method for providing transversal seals to a tube of packaging material, and a sealing jaw assembly
WO2018114311A1 (en) 2016-12-21 2018-06-28 Tetra Laval Holdings & Finance S.A. A device for aligning a number of packages
EP3339197B1 (en) * 2016-12-21 2020-11-04 Tetra Laval Holdings & Finance S.A. A method for providing transversal seals to a tube of packaging material, and a sealing jaw assembly
US10889450B2 (en) 2016-12-21 2021-01-12 Tetra Laval Holdings & Finance S.A. Device for aligning a number of packages
US11731820B2 (en) 2018-07-06 2023-08-22 Tetra Laval Holdings & Finance S.A. Packaging material and method for providing a packaging material

Also Published As

Publication number Publication date
RU2653072C2 (en) 2018-05-07
MX366821B (en) 2019-07-25
CN105073582B (en) 2017-03-22
RU2015145832A (en) 2017-05-04
BR112015021694A2 (en) 2017-07-18
MX2015013456A (en) 2016-01-14
US10315790B2 (en) 2019-06-11
BR112015021694B1 (en) 2021-02-02
EP2978673A1 (en) 2016-02-03
JP2016517830A (en) 2016-06-20
CN105073582A (en) 2015-11-18
EP2978673B1 (en) 2017-09-20
JP6293863B2 (en) 2018-03-14
US20160059973A1 (en) 2016-03-03

Similar Documents

Publication Publication Date Title
EP2978673B1 (en) A method of manufacturing a package, a web of packaging material, a package and a filling machine
JP4751453B2 (en) Molding device, molding machine, packaging laminate web, molding method and process in packaging container manufacturing
CN106715277A (en) Sheet packaging material for producing sealed packages for pourable food products
JP6691118B2 (en) Simplified lateral induction seal device
JP6199860B2 (en) Packaging material with detectable marks for producing a packaging container made of cardboard or paperboard
JP7516343B2 (en) Manufacturing method of packaging material
JP5174426B2 (en) Self-supporting packaging bag with folds, self-supporting package with folds, raw roll for fold-free self-supporting package, and method for producing self-supporting package with folds
JP6930941B2 (en) A method and an apparatus for manufacturing a package made of a flexible material having a side gusset.
CN103112657B (en) Multi-box packed articles and packaging device and method thereof
CN108298146B (en) Method and sealing jaw assembly for providing a transverse seal to a tube of packaging material
JP6424207B2 (en) Packaging laminate processing method and apparatus for performing the method
CN103052565B (en) Apparatus for producing a pack
CN208761092U (en) A kind of package material structure
EP4247712B1 (en) Vertical flow-wrapper with improved corner folding
JP6125239B2 (en) Manufacturing method of sealed bag
JP2002284188A (en) Individual packaging body and automatic packaging machine for manufacturing the same
JP2012086961A (en) Reel-shaped packaging material

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201480019072.9

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14714955

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2014714955

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2014714955

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2016504608

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: MX/A/2015/013456

Country of ref document: MX

WWE Wipo information: entry into national phase

Ref document number: IDP00201505998

Country of ref document: ID

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 14780969

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2015145832

Country of ref document: RU

Kind code of ref document: A

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112015021694

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 112015021694

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20150904