EP0358916A1 - Emballage, feuille composée pour la fabrication d'un emballage, dispositif de fabrication de la feuille composée et procédé de fabrication d'emballages sous vide - Google Patents

Emballage, feuille composée pour la fabrication d'un emballage, dispositif de fabrication de la feuille composée et procédé de fabrication d'emballages sous vide Download PDF

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Publication number
EP0358916A1
EP0358916A1 EP89114249A EP89114249A EP0358916A1 EP 0358916 A1 EP0358916 A1 EP 0358916A1 EP 89114249 A EP89114249 A EP 89114249A EP 89114249 A EP89114249 A EP 89114249A EP 0358916 A1 EP0358916 A1 EP 0358916A1
Authority
EP
European Patent Office
Prior art keywords
composite film
sealing
packaging
tear strip
tear
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.)
Withdrawn
Application number
EP89114249A
Other languages
German (de)
English (en)
Inventor
Gerhard Hemm
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.)
Kraft Foods Schweiz Holding GmbH
Original Assignee
Jacobs Suchard AG
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 Jacobs Suchard AG filed Critical Jacobs Suchard AG
Publication of EP0358916A1 publication Critical patent/EP0358916A1/fr
Withdrawn legal-status Critical Current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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/70—Break-in flaps, or members adapted to be torn-off, to provide pouring openings
    • 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
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/66—Inserted or applied tearing-strings or like flexible elements

Definitions

  • the invention relates to a packaging according to the preamble of claim 1, a composite film according to the preamble of claim 6, a device for producing the composite film and a method for producing vacuum packaging according to the preamble of claim 13.
  • Tear openers are known for such packaging, which consist of a tear strip fixed to the film (US Pat. No. 4,364,478). The latter is connected to the packaging film over its entire length. With this type of attachment of the tear strip, the film is discarded in or near the connection area, which in turn leads to the film being jammed or injured in the associated machines in the subsequent processing steps. With the high clock rates of packaging machines required today, this leads to considerable disruptions which are associated with high costs.
  • vacuum packaging of the type mentioned at the outset is known in which one end facing the handle tab (handle end) of the tear strip ends or is arranged with a distance from the die cuts ensuring the tightness of the welded composite film (side welding).
  • the object of the present invention is to further develop packaging of the type mentioned at the outset in such a way that undisturbed handling is ensured in the further course of the packaging process.
  • the tear strip is over point sealing points with interruptions in the sealing in seen in its longitudinal direction sealed with the packaging composite film.
  • the tear strip also consists of a composite film with a sealable outer layer, by means of which the tear strip is connected to the packaging composite film by point-wise sealing of the two sealable layers.
  • This ensures a particularly high tear resistance of the tear strip, on the other hand, a particularly good heat distribution during sealing and thus a particularly secure connection of the two thermoplastic layers is achieved.
  • the connection itself is tasteless and high-strength.
  • the invention also relates to a composite film with tear strips of the type mentioned at the outset.
  • a sealing jaw is suitable, the heatable sealing surface of which, which can be pressed onto a tear-open strip, is provided with notches in such a way that, seen in the longitudinal direction of the sealing jaw, there is a large number of individual sealing surfaces which are separated from one another in a row by the notches are.
  • Such a device ensures that only point sealing points are formed and the packaging film thus remains free of warpage and can therefore be processed more easily in the associated packaging machines.
  • the invention also relates to a method for producing a vacuum packaging of the type mentioned at the beginning, wherein after the upper region has been spread and the folding fin has been formed, the latter is sealed in sections in an intermediate step, both in the edge regions and in a central region, that although unsealed residual opening sections remain, through which the air can be sucked out of the pack, the remaining opening remains essentially collapsed (not gaping) with the inner surface of the composite film lying on top of one another.
  • This is of particular importance in final application of the closure seam, since air is first sucked out through the still open package and thereby the opening in the package has been opened in the previously usual methods.
  • wrinkles then formed, leading to leaks and thus to rejects. This is now reliably avoided by the sealing in the middle area.
  • the packaging shown as exemplary embodiments in the drawings is vacuum packaging for holding ground roasted coffee.
  • the basic structure of such a vacuum packaging comprises an outer wrapping (not shown) made of paper, cardboard or the like and an inner packaging, the actual vacuum packaging. This consists of a section of a film tube of a multilayer, aroma and airtight composite film, the structure of which is described in more detail below.
  • a continuous film tube with a tube seam running in the longitudinal direction is first formed. Individual tube sections are separated from this film tube, in each case to form a vacuum package. After applying a lower, transverse sealing seam by thermal welding or sealing (not shown), the resulting bag is filled and then evacuated. During evacuation, the contents of the pack (ground roasted coffee) are shaped into a cuboid block by means of corresponding external shaping elements (not shown), namely into a block of coffee 10. This is firm and dimensionally stable due to the vacuum inside the pack. The upper end of the tubular packaging is now tightly closed by a transverse sealing seam 11, by means of corresponding, known thermal sealing jaws (not shown). In the preferred embodiments shown in FIGS.
  • lateral partial seams 12, 12 'and an intermediate fixing seam 13 are first applied, so that the opening which initially arises between the lateral partial seams 12, 12', opens up in itself via the fixing seam 13 in folded state is kept. During the evacuation, however, the air can be sucked out through the two partial openings. The full-width closure seam 11 is then produced.
  • the pack formed in this way forms a protruding fin fold 14 in the area above and below the coffee block 10.
  • This consists of an end-sided, rectangular closure section 15 and an adjoining trapezoidal transition piece 16. The latter merges into the cuboid area of the coffee block 10.
  • the closure seam 11 is located in the area of the rectangular closure section 15, namely directly adjacent to the free opening edge.
  • the parts of the fin fold 14 projecting beyond the coffee block 10 are folded against the upper and lower end faces of the coffee block 10, so that an overall cuboidal structure is created which is accommodated in an outer wrapper in the manner described.
  • a tear strip 17 directed transversely to the film tube and to the longitudinal axis of the coffee block 10 is attached in the area of the fin fold 14. This is located on the inside of the composite film.
  • the tear strip 17 is expediently already attached to the still continuous web of the composite film, that is to say before the film tube is formed, in a relative position corresponding to the position within the packaging.
  • this grip end 18 On one side of the packaging or at one end of the tear strip 17, this forms a grip end 18, in the area of which a grip tab 19 is formed from the material of the composite film.
  • This grip tab 19 is in such a position relative to the tear strip 17 or to the handle end 18 that the tear strip 17 is grasped together with the grip tab 19 and thus the composite film can tear open slit-like over the length of the tear strip 17.
  • the handle end 18 and the grip tab 19 are located in the area of a flat weld of opposing film walls in the area of the closure section 15 or the transition piece 16.
  • This side weld 20 serves in particular to maintain the tightness, but on the other hand it also forms a stiffening area which The opening process favors in the initial phase. This is particularly the case in the exemplary embodiment according to FIG. 7, in which the grip end 18 of the tear strip 17 is not drawn into the grip tab 19, but ends before it.
  • the grip tab 19 is defined by punch cuts 27, 28 and 29.
  • the relative position between the handle end 18 and the grip tab 19 or with respect to the die cuts is important in such a way that a sufficient distance between the die cuts and the tear strip ensuring the tightness is ensured. This distance should be 4 mm or more. This is particularly easy to achieve in the embodiment of the invention shown in FIG. 7, since there the grip end 18 of the tear strip 17 is not inserted into the grip tab 19.
  • the fact that the upper and lower punch cuts 27, 28, which run parallel to the tear strip 17, already specify a tear direction ensures that when the pull tab 19 is tightened, a sufficiently large material section of the tear strip 17 is gripped together with the stiffened region 20.
  • a V-shaped or semicircular punching can also be carried out instead of the U-shaped punching 26. It is essential, however, that the grip tab 19 initially lies flat within the area 20 and can then simply be pushed out and touched by the user. The material web 30-32 remaining around the U-punching 26 then remains standing and can be gripped by the user with the other hand, so that the tearing open is further facilitated.
  • the side seal 20 shown in FIG. 8 has an inner edge directed in the shape of an arrow on the tear strip 17, this shape ensuring that when the tear occurs, the upper and lower tear in the composite film or in the region 20 run towards the tear strip 17.
  • the packaging composite film with the tear strip attached to it is described in more detail below with reference to FIGS. 3 to 5.
  • a packaging composite film 32 is provided with tear strips 17 in order to produce a film tube or the resulting pack.
  • These tear strips 17 also consist of a composite film consisting of a layer of aluminum film 24, a polyester layer 25 and a sealable layer 23 which comprises a thermoplastic material, in particular heat-sealable low-density polyethylene.
  • the composite film 22 for the tear strip 17 is preferably composed of a 7 ⁇ m thick aluminum layer, an approximately 12 ⁇ m thick polyester layer and an approximately 100 ⁇ m thick polyethylene layer. This film is cut into strips of suitable width and length and on a continuous path of the packaging Welded composite film 32.
  • the packaging composite film 32 comprises an outer polyester layer 36 (on the finished package), an aluminum foil 37 and an inner layer 38 made of heat-sealable material, in particular of heat-sealable low-density polyethylene.
  • the outer polyester layer is preferably about 12 microns thick, the aluminum foil about 9 microns thick and the inner heat sealable polyethylene.
  • layer 38 is about 70 microns thick.
  • the connection between the layers is preferably made using curing polyurethane glue.
  • the tear strips 17 are sealed or welded onto the packaging composite film 32 by a corresponding local heating and simultaneous application of pressure. This results in a fusion of the two heat-sealable layers 23 and 38, as is indicated in FIG. 4 by an interruption in the dividing lines between the two layers.
  • the resulting connection does not pose any risk of vapors being emitted, which could have a deleterious effect on the taste or even be toxic, since no other material apart from the already tasteless polyethylene is used.
  • the connection is extremely tight, so that the tear strip 17 cannot tear when torn.
  • the good weldability of the composite film 22 forming the tear strip 17 to the packaging composite film 32 is favored in that the metal, in particular aluminum layer 24, distributes the heat introduced by the heat sealing tools or jaws quickly and uniformly over the material.
  • a sealing jaw as shown schematically in FIGS. 9 and 10 is suitable for producing such a composite film 32 with tear strips 17 sealed on.
  • the sealing jaw 41 comprises a heatable body which carries sealing surfaces 42 at one end which are separated from one another by notches 43. This arrangement ensures that at the points at which the sealing surfaces 42 are placed on the foils, point sealing points 39 are formed, while in the area of the notches 43 lying between the sealing surfaces 42 there is no sealing, so that there the interruptions 40 mentioned above the connection between the two foils occur, which then lead to the desired voltage equalization.
  • the sealing surfaces 42 are rhomboid-shaped and point in FIG The longitudinal direction of the sealing jaw 41 is approximately the same width as the notches 43 located in between.
  • the individual sealing surfaces 42 have a round or rectangular shape. The results that can be achieved with such a sealing jaw are shown in FIGS. 2 and 3 and 7.
  • the width of the notches 43 (seen in the longitudinal direction of the sealing jaws 41) is selected such that the above-mentioned stresses can equalize, preferably the width of the notches 43 is only about half to twice the corresponding width of the surfaces 42.
  • the individual sealing surfaces 42 viewed in the longitudinal direction of the sealing jaws 41, have the same distances from one another. Correspondingly, the same distances are provided between the individual point sealing points 39 in the longitudinal direction of the tear strip 17.
EP89114249A 1988-08-26 1989-08-02 Emballage, feuille composée pour la fabrication d'un emballage, dispositif de fabrication de la feuille composée et procédé de fabrication d'emballages sous vide Withdrawn EP0358916A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3829042A DE3829042A1 (de) 1988-08-26 1988-08-26 Vakuum-verpackung, verbundfolie zur herstellung einer vakuum-verpackung, vorrichtung zur herstellung der verbundfolie sowie verfahren zur herstellung von vakuum-verpackungen
DE3829042 1988-08-26

Publications (1)

Publication Number Publication Date
EP0358916A1 true EP0358916A1 (fr) 1990-03-21

Family

ID=6361673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89114249A Withdrawn EP0358916A1 (fr) 1988-08-26 1989-08-02 Emballage, feuille composée pour la fabrication d'un emballage, dispositif de fabrication de la feuille composée et procédé de fabrication d'emballages sous vide

Country Status (5)

Country Link
US (1) US4993555A (fr)
EP (1) EP0358916A1 (fr)
JP (1) JPH02152651A (fr)
KR (1) KR900003034A (fr)
DE (1) DE3829042A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3117747A1 (fr) * 2015-07-14 2017-01-18 Miele & Cie. KG Unite aromatique a utiliser pour aromatiser un produit dans des appareils de cuisson

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9201916U1 (fr) * 1992-02-14 1992-04-09 Windmoeller & Hoelscher, 4540 Lengerich, De
DE4239894A1 (de) * 1992-11-29 1994-06-01 Ucb Transpac Nv Gasdichte Vakuumverpackung und Verfahren zum Herstellen eines dafür geeigneten Hüllmaterials
KR100477558B1 (ko) * 2001-04-18 2005-03-25 농업기반공사 폴리머 콘크리트 용배수로
US7334679B2 (en) * 2004-03-15 2008-02-26 Hollister Incorporated Tear open package for hydrophilic-coated catheter
ES2298893T3 (es) * 2005-07-29 2008-05-16 KRAFT FOODS R & D, INC. ZWEIGNIEDERLASSUNG MUNCHEN Metodo y maquina para el envasado de cafe.
ES2426272T3 (es) * 2006-06-08 2013-10-22 Hollister Incorporated Envase para producto de catéter
CN101663213B (zh) * 2007-03-02 2012-06-27 莫诺索尔克斯有限公司 用于诸如膜片条的包装结构
JP5154136B2 (ja) * 2007-04-26 2013-02-27 ユニ・チャーム株式会社 吸収性物品
EP2060296B1 (fr) * 2007-11-19 2016-08-24 Hollister Incorporated Ensemble de cathéter hydraté à vapeur et son procédé de fabrication
DE102011004002A1 (de) 2011-02-11 2012-08-16 Herrmann Ultraschalltechnik Gmbh & Co. Kg Verfahren zur Herstellung einer Quersiegelnaht sowie Quersiegelvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1436264A (en) * 1972-06-08 1976-05-19 Peck C Wrapping material
US4364478A (en) * 1980-03-14 1982-12-21 Sig - Schweizerische Industrie-Gesellschaft Manufacture of easily openable foil bag
EP0298302A2 (fr) * 1987-07-02 1989-01-11 Jacobs Suchard AG Emballage sous-vide, en particulier pour café torréfié (moulu)

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063959B (de) * 1953-10-13 1959-08-20 Jose Amiguet Villagrasa Verschliessbare Huelle
DE1157995B (de) * 1958-11-10 1963-11-21 Valer Flax Verfahren zur Herstellung von Behaeltern, Verpackungen u. dgl. aus thermoplastischem Kunststoff und Werkzeug zur Durchfuehrung des Verfahrens
US3318510A (en) * 1965-09-21 1967-05-09 Iii Frederick H Quarles Envelope
DE1511619A1 (de) * 1966-05-17 1969-08-07 Hoefliger & Karg Verfahren zum Herstellen prallvoller Beutelpackungen
US3588335A (en) * 1968-09-11 1971-06-28 Xerox Corp Facsimile transceiver apparatus
GB1481962A (en) * 1974-06-29 1977-08-03 Metal Box Co Ltd Pack-forming apparatus
DE7508452U (de) * 1975-03-18 1975-07-10 Sig Schweiz Industrieges Vakuumpackung
DE2541382C3 (de) * 1975-09-17 1980-09-11 Haver & Boecker, 4740 Oelde Maschine zum Verpacken von Schüttgut in Seitenfaltensäcken aus Kunststoff
US4129214A (en) * 1978-03-01 1978-12-12 Westvaco Corporation Two compartmented envelope
US4598826A (en) * 1984-11-09 1986-07-08 Minnesota Mining And Manufacturing Company Heat-sealable, laminated package
DE3521383A1 (de) * 1985-06-14 1986-12-18 Basf Ag, 6700 Ludwigshafen Verfahren und vorrichtung zur herstellung von huellen fuer flexible magnetspeicherscheiben
DE8528669U1 (de) * 1985-10-09 1986-01-09 Scheuch Folien- und Papierverarbeitung GmbH & Co KG, 6109 Mühltal Vakuumpackung für insbesondere körnige Lebensmittel
DE3545731C1 (de) * 1985-12-21 1987-07-16 Unilever Nv Schlauchbeutelpackung aus flexiblem Verbundmaterial
DE8612836U1 (de) * 1986-05-10 1986-09-11 Jacobs Suchard GmbH, 28199 Bremen Beutelverpackung
DE3640861A1 (de) * 1986-11-29 1988-06-09 Beiersdorf Ag Aufreissstreifen
DE3708780A1 (de) * 1987-03-18 1988-09-29 Helio Folien Gmbh Mehrlagige folie
DE8801815U1 (fr) * 1988-02-12 1988-04-07 Scheuch Folien- Und Papierverarbeitung Gmbh & Co Kg, 6109 Muehltal, De
US4832505A (en) * 1988-03-11 1989-05-23 Minigrip, Inc. Tamper evident link bags

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1436264A (en) * 1972-06-08 1976-05-19 Peck C Wrapping material
US4364478A (en) * 1980-03-14 1982-12-21 Sig - Schweizerische Industrie-Gesellschaft Manufacture of easily openable foil bag
EP0298302A2 (fr) * 1987-07-02 1989-01-11 Jacobs Suchard AG Emballage sous-vide, en particulier pour café torréfié (moulu)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3117747A1 (fr) * 2015-07-14 2017-01-18 Miele & Cie. KG Unite aromatique a utiliser pour aromatiser un produit dans des appareils de cuisson

Also Published As

Publication number Publication date
DE3829042A1 (de) 1990-03-01
US4993555A (en) 1991-02-19
JPH02152651A (ja) 1990-06-12
KR900003034A (ko) 1990-03-23

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