EP0388310A1 - Einzelpackung zum Verpacken von Lebensmitteln sowie Verfahren und Vorrichtung zu ihrer Herstellung - Google Patents

Einzelpackung zum Verpacken von Lebensmitteln sowie Verfahren und Vorrichtung zu ihrer Herstellung Download PDF

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Publication number
EP0388310A1
EP0388310A1 EP90400709A EP90400709A EP0388310A1 EP 0388310 A1 EP0388310 A1 EP 0388310A1 EP 90400709 A EP90400709 A EP 90400709A EP 90400709 A EP90400709 A EP 90400709A EP 0388310 A1 EP0388310 A1 EP 0388310A1
Authority
EP
European Patent Office
Prior art keywords
package
heat
faces
heat treatment
folding
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.)
Granted
Application number
EP90400709A
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English (en)
French (fr)
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EP0388310B1 (de
Inventor
Dominique Ruyant
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.)
ETS FICHAUX SA
Original Assignee
ETS FICHAUX SA
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9380077&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0388310(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ETS FICHAUX SA filed Critical ETS FICHAUX SA
Priority to AT90400709T priority Critical patent/ATE89802T1/de
Publication of EP0388310A1 publication Critical patent/EP0388310A1/de
Application granted granted Critical
Publication of EP0388310B1 publication Critical patent/EP0388310B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/12—Container closures formed after filling by collapsing and flattening the mouth portion of the container and securing without folding, e.g. by pressure-sensitive adhesive, heat-sealing, welding or applying separate securing members
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks

Definitions

  • the present invention relates to the packaging of a food product, in particular coffee; it relates more particularly to a package, making this packaging, the opening of which is easily obtained, without the need for external accessories. It also relates to a process and an installation specially designed for the manufacture of said package.
  • the preservation of food products requires that they be vacuum-packed, or in an inert atmosphere, and that the package is impermeable to ambient air. It is known to package such products, and in particular coffee, from a strip of a complex material, for example composed of three layers, successively of polyester, aluminum and polyethylene.
  • the aluminum layer seals the package; on the polyester layer, on the outside of the package, the decorative and presentation effects of the product are produced; the polyethylene layer, inside the package, makes it possible to build the package by simply folding the strip and closing by heat-sealing the folded faces opposite.
  • the package having the overall shape of a rectangular parallelepiped is filled, by the small open upper face, with a determined quantity of the food product, then the upper part of the package, located at the -above the level of the food product, is pre-folded and partially heat-sealed, so that the shape of the fold is maintained during the subsequent vacuuming operation, the air being evacuated through the non-heat-sealed opening.
  • straight cutting eliminates any excess material to keep only the upper part necessary for closing the package.
  • the package is closed by terminating the heat seal along a line substantially parallel to the upper edges of the package, by folding down towards a lateral face of the parallelepiped. rectangle the upper part thus heat sealed and keep it there by means of an adhesive tape.
  • the opening of the package by the consumer is obtained by peeling off the adhesive tape, lifting the upper part of the package, and cutting with scissors said upper part below the level of the heat sealing line.
  • This packaging method has drawbacks. It requires the use of an accessory cutting means, which the consumer does not necessarily have at his disposal at the precise moment when he wants to open the package. Furthermore, the cut necessary for opening considerably reduces the height of the package and makes it difficult to subsequently close it.
  • This package is of the known type in that it is formed by folding and heat-sealing a strip of a complex material, the part intended to constitute the interior of the package is made of a heat-sealable material.
  • the heat-sealable material has a structure in peelable layers and on the other hand the distance between the heat-seal line corresponding to the tight closure of the top of the package and the upper edge of the top of the package after removal possible surplus is at least equal to ten millimeters, whereby one can easily grasp the two free ends of the upper part of the package above the heat sealing line, one can separate them from each other and, by simple pull, the package can be opened by separating the peelable layers at the heat seal line.
  • the opening no longer requires cutting at all, but a simple gesture of separation of the two heat-sealed faces of the upper part of the package.
  • This peeling separation of the thermoplastic material at the heat seal line does not affect the package, and in particular does not cause tearing.
  • the above-mentioned package having substantially the shape of a rectangular parallelepiped and the heat-sealing line being produced between the two large lateral faces and between the folded small lateral faces, the two free ends of the upper part of the package above the heat seal line are bevelled. Thanks to this particular arrangement, when the package is opened, the user automatically grasps the central zone, between the two bevelled ends, of the upper part of the package; it is this non-bevelled central zone which corresponds to the assembly of the only two large lateral faces; the bevelled ends which correspond substantially to the assembly of the folds formed by the small side faces no longer have a sufficient height to be entered by the user. The opening of the package is facilitated.
  • This method is of the type known in that it consists, from a strip of complex material, the part intended to constitute the interior of the package is made of a heat-sealable material, to be carried out by different folding and heat sealing a packet in the shape of a rectangular parallelepiped and the upper face of which is open, filling said packet with a determined quantity of food product, pre-folding the upper part of the packet located at the above the level of the food product by bringing together the two large corresponding faces of the rectangular parallelepiped while folding inward the two corresponding small faces of the rectangular parallelepiped, to carry out a first heat treatment located at the two ends of the pre-folded upper part ensuring the heat sealing of the ends of the large faces with the folded parts of the small faces opposite , to eliminate by a straight cut the possible surplus of material so as to keep only the upper part necessary for closing the package, to create a vacuum in the package, to
  • the first heat treatment is carried out, at each end of the pre-folded upper part, in two zones, the first situated at the level of the transverse line of the second heat sealing and the second located above the first near the upper edge of the package, and after the second heat treatment, the extreme edges of the upper part corresponding to the second zone of the first heat seal are cut.
  • This installation is of the type known in that it successively comprises means for folding and heat-sealing a strip of complex material, the part of which intended to constitute the interior of the package is made of a heat-sealable material, capable of producing a package having the shape of a rectangular parallelepiped whose upper face is open, means for filling said package with a determined quantity of food product, means for folding the two large faces of the part towards each other top of the pack, above the level of the food product, and to simultaneously fold the two small faces between said large faces, first means for applying heat treatment under pressure to each of the two assemblies constituted by the two ends of the two large faces and the small faces folded back, means for eliminating by rectilinear cutting of any excess from the upper part of the package, means for evacuating the package, second means for applying heat treatment under pressure along a transverse line on at
  • the first heat treatment means are capable of carrying out said heat treatment in two zones of each of the two assemblies, the first zone located at the transverse line of application of the second heat treatment means and the second zone located above the first near the upper edge of the package corresponding to the set considered; in addition, the installation comprises means for adjusting the height of the package associated with the heat treatment means, so that the transverse line of application of the second heat treatment means is at a distance at least equal to ten millimeters from the upper edge of the package; it also comprises means for bevel cutting the two upper ends of the upper part after heat sealing the two large faces, said upper ends corresponding to the two second application zones of the first heat treatment means.
  • the coffee package 1 ready for sale, has the general shape of a rectangular parallelepiped, comprising two rectangular faces, one lower 2, and the other upper 3 constituting respectively the bottom and the top of the package, two large lateral faces 4 and two small lateral faces 5.
  • the top 3 of the package 1 is produced by folding and heat-sealing according to the following different steps, illustrated in FIG. 2.
  • the constituent material of the package 1 is a complex sheet-like material, composed of three superposed layers which adhere to one another, for example successively of polyester, aluminum and polyethylene, the polyester layer being turned towards the outside of the package while the polyethylene layer is facing the inside of the package.
  • the polyethylene specifically selected for the invention has a structure in peelable layers, which gives the particularity to two sheets of heat-sealed polyethylene that can be separated from one another by separation of the layers by exerting traction on the parts that are not heat-sealed; of course the dynamometric resistance of the sheet must be sufficient to withstand the tensile forces necessary for this separation, and this is obtained in particular when the polyethylene sheets are part of a complex material such as that described above.
  • the thicknesses of the three layers were 12 micrometers for polyester, 9 micrometers for aluminum and 80 micrometers for polyethylene.
  • the complex material is fed in the form of a continuous strip 11 coming from from a reel 12 to a carousel 13, comprising mandrels 14 having the shape of the desired rectangular parallelepiped for the package 1, passing successively during the rotation of the carousel in front of fixed means for folding and heat sealing the sheet 15 after cutting d 'a predetermined length thereof.
  • folding and heat sealing means fold the sheet 15 and the heat seal so as to form an open package 1 at the outlet of the carousel 16.
  • the packet 16 passes under nozzles 17 for injecting coffee ensuring pre-filling of the packet; the pre-filled package passes over a first weighing means 18 which, depending on the weight found, actuates the screw 19 for metering the coffee under which the package passes so that the predetermined quantity of coffee is introduced into the package.
  • An additional weighing means 20 controls the final weight of the filled package and operates a system ensuring the evacuation of non-conforming packages by weight 21.
  • FIG 2a there is shown the package 16, after filling with coffee.
  • the filling level is marked by the dotted line 6.
  • the upper part of the package 7, located above the level 6, consists of extensions 4 a and 5 a over a height e of the two large side faces 4 and the two small side faces 5.
  • the package 16 is introduced into means 22 ensuring the pre-folding and a first heat sealing of the upper part 7 of the package 16.
  • the upper part 7 is pre-folded, simultaneously bringing one towards the other on the one hand the extensions 4 has two large side faces 4 and on the other hand the extensions 5 has two small side faces 5, only these extensions 5 a is bent in their center axis, as is well shown in Figure 2b.
  • FIG. 2c shows the terminal phase of the pre-folding of the upper part 7.
  • the height e of the extensions 4 a and 5 a is sufficient for the folding of each of the extensions 4 a along the level line 6 covers the top half of the top 3 of the pack 1 and ensures the overflow of a strip 8 beyond the top 3 of the pack 16.
  • the strip 8 is formed in its central part 8 a of the superposition of the only two extensions 4 has the two large lateral faces 4 and in each of its end portions 8 b of the superposition not only of the extensions 4 a but also of the extension 5 a of the corresponding small side face 5, under form of two folds.
  • each end part 8 b of the strip 8 the polyethylene layer of the extension 4 a of the large side face 4 is opposite the polyethylene layer of the extension 5 a of the small side face 5 according to each fold thus formed .
  • a heat treatment under pressure is applied to the two end portions 8 b of the strip 8 so that the polyethylene is brought to its melting temperature and the layers of polyethylene facing one on the other during the treatment are welded without the polyester and aluminum layers being altered.
  • the heat treatment is applied to each end part 8 b , in two zones, one 9 in the lower part of the strip 8, the other 10 in the part which will have the higher of the strip 8 after elimination by rectilinear cutting of any surplus material; this cutting takes place after this first heat treatment so as to keep only a strip 8 of a height necessary for closing the package by folding said strip 8.
  • This first heat-sealing heat treatment has the effect of keeping the pre-folding in shape without closing the packet 16; Indeed, the packet 16 remains in the open portion at the central portion 8a of the extensions 4 has two large lateral faces 4.
  • the package 16, with the pre-folded upper part is introduced into an enclosure 23 in which a vacuum is created partial so as to evacuate from the package 16 the residual air; in the same enclosure 23 it is possible to introduce into the package 16, with partial vacuum, an inert gas avoiding excessive hardening of the coffee package.
  • the package 16 passes through second heat-sealing means 24, terminating the heat-sealing of the upper part 7 of the package 16 along a transverse line 27 over a height of the order of five. millimeters and extending the first two zones 9 heat-sealed during the first heat treatment (FIG. 2c).
  • said heat-sealing line 27 delimits, with respect to the upper edges 28 of the strip 8, a spacing h of at least ten millimeters.
  • the packet 16 passes through means 25 for cutting the strip 8.
  • These means 26 comprise two knives cooperating with means for holding the packet 16 and means for holding the strip 8 in a vertical position, for example lips between which the strip 8 passes. The knives move transversely with respect to the lips and bevel the two upper corners of the strip 8, thus eliminating the two second heat-sealed zones 10 during the first heat treatment (FIG. 2f).
  • the packet 16 passes through means 26 in which the strip 8 is folded down towards one of the large lateral faces 5 while being applied to the top 3 of the packet and to said large face 5, as shown in FIG. 2g.
  • a dispenser deposits an adhesive tape 29 both on the folded strip 8 and on the large side face 5; preferably the end of the tape 29 in contact with the large face 5 comprises a non-adhesive zone 30.
  • the finished package 1 (FIG. 1) had a large side face 4 of width 80 millimeters a small side face 5 of width 44 millimeters, a height of 140 millimeters.
  • the height e of the upper part 7 of the package was 52 millimeters; the spacing h was 10 millimeters.
  • Cutting corners in areas 10 of strip 8 made an angle of about 30 ° with respect to the upper edge of strip 8.
  • the package 1 of the invention it suffices first to catch the tape 29 by its non-adhesive end 30 and to peel off the tape 29 from the large side face 5, whereby the tape 8 is released from its position folded down. Then the two large lateral faces 5 are grasped by their upper ends, free, in the spacing h , to spread them apart and to exert on them a traction in opposite directions until the peelable layers of the polyethylene dissociate at the central part of the heat-sealing line 27, corresponding to the welding of the only two extensions 4 a , not bevelled, then at the end parts of the heat-sealing line. After use, the upper part 7 can optionally be folded down in a reverse process and the tape 29 is glued to the large side face 5.
  • the invention is not limited to the embodiment which has just been described, but covers all its variants.
  • the food product is not exclusively coffee; the folding mode of the package may be different.
EP90400709A 1989-03-17 1990-03-16 Einzelpackung zum Verpacken von Lebensmitteln sowie Verfahren und Vorrichtung zu ihrer Herstellung Revoked EP0388310B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90400709T ATE89802T1 (de) 1989-03-17 1990-03-16 Einzelpackung zum verpacken von lebensmitteln sowie verfahren und vorrichtung zu ihrer herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8903962A FR2644438B1 (fr) 1989-03-17 1989-03-17 Paquet realisant l'emballage d'un produit alimentaire, procede et installation pour sa fabrication
FR8903962 1989-03-17

Publications (2)

Publication Number Publication Date
EP0388310A1 true EP0388310A1 (de) 1990-09-19
EP0388310B1 EP0388310B1 (de) 1993-05-26

Family

ID=9380077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90400709A Revoked EP0388310B1 (de) 1989-03-17 1990-03-16 Einzelpackung zum Verpacken von Lebensmitteln sowie Verfahren und Vorrichtung zu ihrer Herstellung

Country Status (4)

Country Link
EP (1) EP0388310B1 (de)
AT (1) ATE89802T1 (de)
DE (1) DE69001696T2 (de)
FR (1) FR2644438B1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2676999A1 (fr) * 1991-06-03 1992-12-04 Gervais Danone Sa Dispositif de fermeture et d'ouverture d'un sachet d'emballage en film mince.
US5351463A (en) * 1991-11-07 1994-10-04 Sara Lee/De N.V. Method and apparatus for making a filled and closed vacuum pak
WO2004106167A1 (en) * 2003-05-30 2004-12-09 Altopack S.P.A. Machine for completing the upper closure of a flat-bottomed bag for small-sized products
US9630761B2 (en) 2008-10-20 2017-04-25 Mondelez UK Holding & Services Limited Packaging
US9656783B2 (en) 2010-05-18 2017-05-23 Intercontinental Great Brands Llc Reclosable flexible packaging and methods for manufacturing same
US9663282B2 (en) 2006-05-23 2017-05-30 International Great Rapids LLC Package integrity indicator for container closure
US9688442B2 (en) 2011-03-17 2017-06-27 Intercontinental Great Brands Llc Reclosable flexible film packaging products and methods of manufacture
US9708104B2 (en) 2010-05-18 2017-07-18 Intercontinental Great Brands Llc Reclosable flexible packaging and methods for manufacturing same
US9919855B2 (en) 2007-03-30 2018-03-20 Intercontinental Great Brands Llc Package integrity indicating closure
US10118741B2 (en) 2008-07-24 2018-11-06 Deborah Lyzenga Package integrity indicating closure
BE1030092B1 (nl) * 2021-12-23 2023-07-24 Beyers Koffie Nv Inrichting en werkwijze voor het verpakken van koffie

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9150342B2 (en) 2003-04-16 2015-10-06 Intercontinental Great Brands Llc Resealable tray container
US7963413B2 (en) 2006-05-23 2011-06-21 Kraft Foods Global Brands Llc Tamper evident resealable closure
US8114451B2 (en) 2006-12-27 2012-02-14 Kraft Foods Global Brands Llc Resealable closure with package integrity feature
DE202009018736U1 (de) 2009-11-24 2013-03-14 Axel Weber Verpackungsprodukteinheit, Automat mit einer Verpackungsprodukteinheit
EP2347971B1 (de) 2010-01-26 2012-08-22 Generale Biscuit Wiederversiegelbare Verpackung für Lebensmittelprodukte und Herstellungsverfahren dafür
PL2368811T3 (pl) 2010-03-23 2012-11-30 Biscuit Gle Opakowanie na produkty żywnościowe z możliwością wielokrotnego szczelnego zamykania i sposób wytwarzania

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220161A (en) * 1962-01-30 1965-11-30 Hesser Ag Maschf Apparatus for closing bags of heat sealable packaging material
US4279344A (en) * 1979-12-26 1981-07-21 Reynolds Metals Company Heat-sealable and peelable laminated packaging construction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220161A (en) * 1962-01-30 1965-11-30 Hesser Ag Maschf Apparatus for closing bags of heat sealable packaging material
US4279344A (en) * 1979-12-26 1981-07-21 Reynolds Metals Company Heat-sealable and peelable laminated packaging construction

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2676999A1 (fr) * 1991-06-03 1992-12-04 Gervais Danone Sa Dispositif de fermeture et d'ouverture d'un sachet d'emballage en film mince.
EP0517566A1 (de) * 1991-06-03 1992-12-09 Compagnie Gervais-Danone Vorrichtung zum Verschliessen und Öffnen eines Beutels aus Kunststoffolie
US5351463A (en) * 1991-11-07 1994-10-04 Sara Lee/De N.V. Method and apparatus for making a filled and closed vacuum pak
WO2004106167A1 (en) * 2003-05-30 2004-12-09 Altopack S.P.A. Machine for completing the upper closure of a flat-bottomed bag for small-sized products
US9663282B2 (en) 2006-05-23 2017-05-30 International Great Rapids LLC Package integrity indicator for container closure
US9919855B2 (en) 2007-03-30 2018-03-20 Intercontinental Great Brands Llc Package integrity indicating closure
US10829285B2 (en) 2007-03-30 2020-11-10 Intercontinental Great Brands Llc Package integrity indicating closure
US10118741B2 (en) 2008-07-24 2018-11-06 Deborah Lyzenga Package integrity indicating closure
US11027892B2 (en) 2008-07-24 2021-06-08 Deborah Lyzenga Package integrity indicating closure
US9630761B2 (en) 2008-10-20 2017-04-25 Mondelez UK Holding & Services Limited Packaging
US9656783B2 (en) 2010-05-18 2017-05-23 Intercontinental Great Brands Llc Reclosable flexible packaging and methods for manufacturing same
US9708104B2 (en) 2010-05-18 2017-07-18 Intercontinental Great Brands Llc Reclosable flexible packaging and methods for manufacturing same
US9688442B2 (en) 2011-03-17 2017-06-27 Intercontinental Great Brands Llc Reclosable flexible film packaging products and methods of manufacture
BE1030092B1 (nl) * 2021-12-23 2023-07-24 Beyers Koffie Nv Inrichting en werkwijze voor het verpakken van koffie

Also Published As

Publication number Publication date
FR2644438A1 (fr) 1990-09-21
EP0388310B1 (de) 1993-05-26
DE69001696T2 (de) 1993-09-23
FR2644438B1 (fr) 1991-07-12
DE69001696D1 (de) 1993-07-01
ATE89802T1 (de) 1993-06-15

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