EP1264768B1 - Method for producing containers from a film of heat-sealable flexible material - Google Patents

Method for producing containers from a film of heat-sealable flexible material Download PDF

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Publication number
EP1264768B1
EP1264768B1 EP01112944A EP01112944A EP1264768B1 EP 1264768 B1 EP1264768 B1 EP 1264768B1 EP 01112944 A EP01112944 A EP 01112944A EP 01112944 A EP01112944 A EP 01112944A EP 1264768 B1 EP1264768 B1 EP 1264768B1
Authority
EP
European Patent Office
Prior art keywords
heat
container
sealed portion
film
accordion
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP01112944A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1264768A1 (en
Inventor
Giorgio Trani
Marion Sterner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amcor Flexibles Italia SRL
Original Assignee
Alcan Packaging Italia SRL
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 Alcan Packaging Italia SRL filed Critical Alcan Packaging Italia SRL
Priority to ES01112944T priority Critical patent/ES2227017T3/es
Priority to AT01112944T priority patent/ATE276134T1/de
Priority to EP01112944A priority patent/EP1264768B1/en
Priority to TR2004/02425T priority patent/TR200402425T4/xx
Priority to DE60105562T priority patent/DE60105562T2/de
Priority to DK01112944T priority patent/DK1264768T3/da
Publication of EP1264768A1 publication Critical patent/EP1264768A1/en
Application granted granted Critical
Publication of EP1264768B1 publication Critical patent/EP1264768B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65B9/2014—Tube advancing means
    • B65B9/2021—Tube advancing means combined with longitudinal welding 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
    • B65B61/08—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting using rotary cutters
    • 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
    • B65B9/2042—Means for altering the cross-section of the tube filling opening prior to transversal sealing, e.g. tube spreading 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
    • B65B9/20—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
    • B65B9/2049—Package shaping devices acting on filled tubes prior to sealing the filling opening
    • 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
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B31B2155/0012—Flexible containers made from webs by folding webs longitudinally having their openings facing in the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness 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
    • B65B9/2056—Machines for packages of special type or form

Definitions

  • the present invention relates to a method for producing containers particularly suitable for containing liquids or viscous or granular fluids by using a film of heat-sealable flexible material.
  • Containers produced by means of a single- or multilayer film of flexible material and suitable to contain liquids, such as beverages or viscous fluids of various kinds, particularly foodstuffs, are known.
  • These packages are produced by folding and heat-sealing, along predefined lines and operating sequences, a sheet of heat-sealable flexible film unwound from a roll.
  • the aim of the present invention is to eliminate the drawbacks of the known art, providing a method which allows to obtain a container having a predefined shape which substantially cannot be modified by the filling product.
  • an object is to provide a method which starts from a film which is not necessarily prepared beforehand with reinforced regions.
  • Another object is to provide a method which allows to use conventional machines and systems, albeit with appropriate modifications to the fixtures that are used.
  • Figure 1 illustrates a first embodiment of the method according to the invention, in which a film 11 of flexible and heat-sealable material is unwound stepwise from a roll 10.
  • the film passes through a forming collar 12 of an ordinary vertical forming machine, thus obtaining a tube 13 which has a rectangular cross-section and in which flaps 14 and 15 of the film 11 are made to overlap in a median region along a longitudinal band 16 on which a longitudinal heat-sealed portion 17 is provided which consolidates the tubular shape.
  • the central heat-sealed portion 17 is twice as wide as necessary, since, as described hereinafter, it is designed to obtain two containers arranged side by side.
  • the tube 13 can be formed, with particular machines, even without the presence of the forming collar 12, so that in the first step of the method a tube with a central longitudinal heat-sealed portion 17 is formed in any case.
  • a transverse heat-sealed portion 18 is formed, producing a bottom 19 of the container which, simultaneously with this operation, is filled from above with a liquid or in any case with a product to be packaged.
  • this heat-sealed portion 18 is twice as wide, since it also serves to close the upper part of the already-filled container 20 which had been formed before and filled during the continuous production step of the machine.
  • a transverse cut is also performed which separates the filled and closed container 20 from the one that will be formed subsequently.
  • the container now designated by the reference numerals 23a and 23b, is provided with a further central heat-sealed portion 24 which overlaps the existing heat-sealed portion 17 and forms two independent containers, which are also separated by a rotating blade 25 arranged in a median region of a heat-sealing roller 26.
  • Additional eccentric pushers 27 further help the insertion of the side of the container toward the inside of said container.
  • the median cut, designated by the reference numeral 28 in Figure 2, can be performed continuously, achieving complete separation of the two containers, as shown in Figure 3.
  • the cut 28 can be made as a line of small perforations or by means of a laser cut, which allows to keep the two containers 23a and 23b coupled to each other, although they can be easily separated at the time of use or sale.
  • the resulting container as shown in Figure 2, has two opposite faces which are directly heat-sealed by means of the heat-sealed portions 18 and 24 and has two other faces, i.e., the bottom now designated by the reference numeral 29 and the side designated by the reference numeral 30, which have an accordion-like shape which gives volume to said container.
  • Figure 3 illustrates another embodiment of the production of containers of the type shown in Figures 2 and 3.
  • a film 101 is unwound from a roll 100 and passes through a forming collar 102 to form a tube 103 which is again blocked in the median region by a heat-sealed portion 107.
  • the embodiment entails that blade means 121 push the bottom 109 upward while the sides, now designated by the reference numeral 122, are pushed together and folded outward.
  • the two embodiments of the method described so far relate to vertical packaging machines in which filling with the product is performed directly in the machine during the forming of the container.
  • FIGS 4, 5 and 6 illustrate applications of the same process on horizontal machines which prepare the containers which are then filled in other steps and at different times.
  • a film 211 is unwound stepwise from a roll 210 and is folded so that two lateral flaps 212 and 213 of the film lie side by side in a median region 214.
  • the side-by-side arrangement might also be an overlap, although this is not necessary.
  • two internal accordion-like portions designated by the reference numerals 215 and 216 respectively, are formed laterally by folding the film itself.
  • This operation occurs horizontally, in the illustrated case, and advancement occurs practically continuously.
  • a transverse heat-sealed portion 217 is provided, forming the bottoms of the container.
  • bars designated by the reference numerals 218 and 219 respectively and arranged in direct contact with the container that is being formed, by means of suction holes, not shown, and of a system which generates vacuum, take the two faces of the film and move it away, for example by rotation, as shown schematically by 220 and 221.
  • the central heat-sealed portion now designated by the reference numeral 217a, is kept motionless, or moved backward, while the container being formed advances.
  • the bottom that is being formed is inserted in the container and when insertion is completed the bars, now designated by the reference numerals 218a and 219a, reposition the faces of the container so that they are mutually adjacent again while the bottom is comprised between them.
  • a pair of heat-sealing rollers 222 and 223 forms a double longitudinal heat-sealed portion 224 and 225 and an intermediate cut 226 which separates the two side-by-side containers, which are now designated by the reference numerals 227 and 228; the containers are collected in separate stacks 229 and 230 and are ready for subsequent filling.
  • the container has a substantially triangular accordion-like bottom 231, while on the opposite side, which is the upper side used for filling, a mouth 232 is left open in order to allow to insert the product.
  • a heat-sealing station is then provided in the filling machine, after the product has been introduced, which produces an upper heat-sealed portion 233 which permanently closes the container.
  • Figure 8 illustrates another embodiment of the method shown in Figure 5; the variation is introduced in the intermediate step, in which the bottom obtained by means of a transverse heat-sealed portion 317 is inserted between the folded flaps of the sheet during the advancement of said folded sheet by virtue of eccentric blade means designated by the reference numeral 318.
  • Wheels one of which is designated by the reference numeral 319, then flatten the resulting accordion-like portion, so as to be able to provide a double longitudinal heat-seal 320 and 321 by means of heat-sealing wheels 322 and 323, while a central rotating blade 324 produces a median cut 325 which separates the two containers, now designated by the reference numerals 326 and 327, which are collected in two stacks 328 and 329.
  • the containers thus obtained can be stored while waiting to be filled, or else they can pass directly to a carousel which opens their upper part, which has not yet been heat-sealed yet, and carries them to a filling machine and to a final heat-sealing operation for closure.
  • the film can be already prepared with weakened and pre-perforated regions for the insertion of a straw which can also be inserted again and removed, when necessary, from a weakened or peel-off region of a heat-sealed portion.
  • the cut that separates the containers can be complete or partial, so that two containers remain joined and can be subsequently divided by the user who has purchased them as a pair or at the time of sale.
  • the method is therefore simple to perform with equipped machines which do not modify the general structure of already-known machines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Laminated Bodies (AREA)
  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Closing Of Containers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP01112944A 2001-06-06 2001-06-06 Method for producing containers from a film of heat-sealable flexible material Expired - Lifetime EP1264768B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES01112944T ES2227017T3 (es) 2001-06-06 2001-06-06 Metodo de fabricacion de embalajes a partir de un filtro termosoldable.
AT01112944T ATE276134T1 (de) 2001-06-06 2001-06-06 Methode zum herstellen von behältern aus heisssiegelbarer folie
EP01112944A EP1264768B1 (en) 2001-06-06 2001-06-06 Method for producing containers from a film of heat-sealable flexible material
TR2004/02425T TR200402425T4 (tr) 2001-06-06 2001-06-06 Isıyla yapışabilen esnek malzemeden bir filmden kap üretme yöntemi
DE60105562T DE60105562T2 (de) 2001-06-06 2001-06-06 Methode zum herstellen von Behältern aus heisssiegelbarer Folie
DK01112944T DK1264768T3 (da) 2001-06-06 2001-06-06 Fremgangsmåde til fremstilling af beholdere af fleksibelt materiale, der kan varmeforsegles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01112944A EP1264768B1 (en) 2001-06-06 2001-06-06 Method for producing containers from a film of heat-sealable flexible material

Publications (2)

Publication Number Publication Date
EP1264768A1 EP1264768A1 (en) 2002-12-11
EP1264768B1 true EP1264768B1 (en) 2004-09-15

Family

ID=8177568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01112944A Expired - Lifetime EP1264768B1 (en) 2001-06-06 2001-06-06 Method for producing containers from a film of heat-sealable flexible material

Country Status (6)

Country Link
EP (1) EP1264768B1 (da)
AT (1) ATE276134T1 (da)
DE (1) DE60105562T2 (da)
DK (1) DK1264768T3 (da)
ES (1) ES2227017T3 (da)
TR (1) TR200402425T4 (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10239644B2 (en) 2015-03-18 2019-03-26 Kellogg Company Flat-bottom stand-up bag, vertical form, fill, and seal system and methodology for utilizing the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1130714A (fr) * 1955-04-29 1957-02-11 Perfectionnements aux machines à former, remplir et fermer les emballages en matière thermo-soudable
GB966708A (en) * 1961-11-02 1964-08-12 Continental Can Co Improvements in or relating to bags
US3659775A (en) * 1970-04-17 1972-05-02 Dixico Inc Upstanding pouch of flexible material
IL125699A (en) * 1998-08-07 2001-06-14 Atifon Comprehensive Packaging Container having stabilized base and its manufacture
IT1307395B1 (it) * 1999-10-05 2001-11-06 Giorgio Trani Contenitore con fondo autostabile in materiale flessibile eprocedimento per la sua realizzazione.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10239644B2 (en) 2015-03-18 2019-03-26 Kellogg Company Flat-bottom stand-up bag, vertical form, fill, and seal system and methodology for utilizing the same

Also Published As

Publication number Publication date
DE60105562T2 (de) 2005-11-17
TR200402425T4 (tr) 2004-12-21
DE60105562D1 (de) 2004-10-21
EP1264768A1 (en) 2002-12-11
ATE276134T1 (de) 2004-10-15
ES2227017T3 (es) 2005-04-01
DK1264768T3 (da) 2004-10-11

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