EP0298302B1 - Emballage sous-vide, en particulier pour café torréfié (moulu) - Google Patents

Emballage sous-vide, en particulier pour café torréfié (moulu) Download PDF

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Publication number
EP0298302B1
EP0298302B1 EP88109907A EP88109907A EP0298302B1 EP 0298302 B1 EP0298302 B1 EP 0298302B1 EP 88109907 A EP88109907 A EP 88109907A EP 88109907 A EP88109907 A EP 88109907A EP 0298302 B1 EP0298302 B1 EP 0298302B1
Authority
EP
European Patent Office
Prior art keywords
grip tab
tear
vacuum pack
pack according
region
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
EP88109907A
Other languages
German (de)
English (en)
Other versions
EP0298302A2 (fr
EP0298302A3 (en
Inventor
Gerhard Clausing
Gerhard Hemm
Heiko Pietzsch
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
Priority to AT88109907T priority Critical patent/ATE85293T1/de
Publication of EP0298302A2 publication Critical patent/EP0298302A2/fr
Publication of EP0298302A3 publication Critical patent/EP0298302A3/de
Application granted granted Critical
Publication of EP0298302B1 publication Critical patent/EP0298302B1/fr
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
    • 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 vacuum packaging made of a film tube of a multilayer composite film for pourable goods, in particular (ground) roasted coffee, which is formed into a dimensionally stable coffee block and which is provided with an upper sealing seam in the area of a fin fold, a tear strip in the area of the Fin fold is arranged between the coffee block and the closing seam, which is guided up to the region of an edge-side grip tab defined by punch cuts of the composite films welded here, which lies within a side weld.
  • the vacuum packaging usually consists of a multilayer composite film with metallized layers and an inner layer made of thermoplastic material.
  • the packaging is produced from a continuous film tube, usually with a tube seam extending in the longitudinal direction, by severing tube sections. The tube section is sealed airtight with upper and lower transverse sealing seams after prior filling and evacuation.
  • the evacuated package contents are shaped into a stable, cuboid block. Areas of the film tube that protrude at the top and bottom are folded flat to attach the sealing seams. This creates a design of the upper and lower end regions of the pack, referred to as fin folding. These are folded against the front and bottom of the coffee block. Approximately triangular flaps protruding on the sides are also folded towards the front and bottom. The result is an overall block-shaped molding which is usually accommodated in an outer packaging made of cardboard or coated paper.
  • the invention has for its object to design a packaging, in particular a vacuum packaging for (ground) roasted coffee or the like, so that an easy-to-use tear-open mechanism does not impair the durability of the vacuum and ensures problem-free opening of the vacuum packaging.
  • the vacuum packaging according to the invention is characterized in that one end of the tear strip facing the grip tab is arranged at a distance from the die cuts and a handle tab end.
  • the invention is based on the knowledge that by making the die cuts to limit the grip tab a considerable risk with regard to the tightness is created, in connection with the tear strip attached to the inside of the composite film. According to the knowledge on which the invention is based, this forms fine, capillary-shaped channels in addition to the tear strip in the region of the composite films welded to one another. If the end of the tear strip facing the grip tab is not at a sufficient distance from the die cuts and the handle tab end, a potential leak in the packaging is created here.
  • the tear strip ends at a distance - seen in the longitudinal direction of the tear strip - from the die cuts to limit the grip tab, but preferably with an anchoring within the side weld.
  • the tear-open process can nevertheless be carried out without any problems, because tear or separating lines converge in the direction of the tear strip when gripping and pulling the grip tab. This also comes into full effect for the tear-open process if the tear strip ends at a clear distance in front of the area of the die cuts and thus the grip tab.
  • a further special feature of the invention consists in the design of the grip tab itself. According to the invention, this is formed at a distance from the side edge of the packaging, specifically by means of a U-shaped or a similarly shaped stamping within the side seal. This creates a grip tab, which is formed at a distance from the edge of the packaging or the fin fold and can be grasped by pushing it out to the side. This leaves a closed, frame-like part of the (welded) composite film, which can be held particularly firmly between the thumb and forefinger during the tearing process.
  • This version of the grip tab can also be used in other types of film packaging as part of a tear-open mechanism with tear strips, ie not only in vacuum packaging.
  • the tear-open mechanism can also be arranged in the region of a trapezoidal transition piece of the fin fold, wherein a side weld with a tab that connects the two film walls is also arranged in the region of the transition piece.
  • the vacuum packaging shown as exemplary embodiments in the drawings serves to hold ground roasted coffee.
  • the basic structure of such a vacuum packaging comprises an outer wrapping (not shown) made of paper or cardboard 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. Their structure is such that at least one inside coating thermally sealable or weldable plastic.
  • An intermediate layer usually consists of metal.
  • 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, each to form a vacuum package. After applying a lower, transverse sealing seam by thermal welding (not shown), the bag-shaped packaging 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 members (not shown), namely into a block of coffee 10. This is solid and dimensionally stable due to the vacuum inside the packaging.
  • the upper end of the tubular packaging is also tightly closed by a transverse sealing seam 11, namely by corresponding, known thermal sealing jaws (not shown).
  • a transverse sealing seam 11 namely by corresponding, known thermal sealing jaws (not shown).
  • lateral partial seams 12, 13 are first made, which leave an approximately central opening for the evacuation process.
  • the full-width closure seam 11 is then produced.
  • the packaging formed in this way forms a fin fold 14 projecting above it 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 goes into the cuboid area of the coffee block 10 about.
  • the closure seam 11 is located in the area of the rectangular closure section 15, namely directly adjacent to the free opening edge.
  • a tear strip 17 directed transversely to the film tube 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, in a relative position corresponding to the position within the packaging.
  • the tear strip 17 can be attached to the composite film by sealing, but preferably by gluing.
  • the tear strip is located in the region of the rectangular closure section 15.
  • the tear strip 17 extends (almost) the full width of the packaging.
  • a grip tab 19 is formed from the material of the composite film. This is located in such a position relative to the tear strip 17 or to the end 18 of the same that when the grip tab 19 is gripped and the pull tab 17 is pulled, the tear strip 17 is also grasped and the composite film is thus split open over the length of the tear strip 17.
  • the end 18 and the grip tab 19 are located in the area of a sheet-like welding of opposing film walls in the area of the closure section 15 or the transition piece 16 (FIGS. 5 and 6).
  • This side weld 20 serves on the one hand to maintain tightness and on the other hand to form a stiffening area which favors the tearing process in the initial phase.
  • the grip tab 19 is always defined by punch cuts in the various embodiments. What is important is the relative position between the end 18 and the grip tab 19 or to the punch cuts, such that there is a sufficient distance to ensure tightness. This should be 4 mm or more.
  • the grip tab 19 is delimited by two punch cuts 22, 23 made from a free side edge 21 of the packaging. These also end at the side edge 21 and extend within the side weld 20 on both sides of the tear strip 17th
  • the grip tab 19 is also defined by punch cuts 22, 23 made from the side edge 21.
  • the tear strip 17 is in the present case almost up to the side edge 21, but is not the area of a side weld - As in Fig. 1 -, but freely between two separate sealing welds 24, 25. These run (approximately) parallel to the tear strip 17 above and below it at a distance from it. The sealing effect of these sealing welds 24, 25 produced by the sheet-like welding is therefore not impaired by the tear strip 17.
  • the die cuts 22, 23 for delimiting the grip tab 19 are located in the area of the sealing welds 24, 25, but at a sufficient distance from the upper and lower edges thereof for sealing.
  • the punch cuts 22, 23 are thus also located in a sufficiently sealed area.
  • FIG. 3 shows an embodiment which is distinguished by a particularly advantageous design and arrangement of the grip tab 19. Overall, this is arranged at a distance from the side edge 21, and accordingly extends completely within the side weld 20.
  • a special stamping which in the present exemplary embodiment is designed as a U-stamping 26, namely with two horizontal stamping legs 27, 28 extending on both sides of the tear strip 17 and a transverse stamping 29 connecting them to one another.
  • the stamping The definition of the grip tab 19 can also be rounded, triangular or similar. In any case, there is a tongue which can be pressed out laterally from the plane of the welded composite film as a grip tab 19.
  • a frame-shaped structure with an upper material web 30 and a lower material web 31 and a transverse web 32 connecting them remains for gripping and holding.
  • the frame part formed in this way is particularly good to grasp and hold when the required traction on the Handle tab 19 is exercised.
  • the tear-open mechanism designed in this way can also be used for other types of packaging made of films.
  • the end 18 of the tear strip 17 ends in the present case at a distance from the U-punching 26, so that the tightness is guaranteed.
  • FIG. 4 shows an alternative to FIG. 3 that is improved in terms of tightness.
  • the grip tab 19 already described is arranged here within a side weld 20 widened in the longitudinal direction of the tear strip 17.
  • the tear strip 17 or its end 18 ends here at a distance - seen in the longitudinal direction of the tear strip 17 - from the U-punch 26, and also from the free ends of the punch legs 27, 28. This achieves an optimal seal without the Tearing open.
  • the tear strips 17 can extend to a free side edge 33. However, it is more advantageous to limit the tear strips 17 such that they end at a distance from the side edge 33, since an increased leakage can also occur in the region of the side edge.
  • an end weld 34 is attached here, in which the facing end of the tear strip 17 can be anchored (FIG. 3).
  • FIG. 5 and 6 show a vacuum packaging in which the tear strip 17 is attached in the region of the trapezoidal transition piece 16.
  • the type of attachment corresponds to the exemplary embodiments described, a trapezoidal side weld 25, likewise for receiving a grip tab 19, being arranged in the manner described.
  • the side weld 20 in the region of the closure section 15 has been retained here.
  • the dimensions and arrangement of the Tear strip 17 apply to the described features for this embodiment.
  • FIG. 7 shows an embodiment of the tear-open aid in a further development of FIG. 3.
  • the grip tab 19 is rounded here and has smaller dimensions than the inner dimension of the material webs 30, 31 surrounding it as a U or C with a cross web 32. This creates a gap 36 between the grip tab 19 and the aforementioned material webs, which facilitates the gripping tab 19 for the tearing process.
  • the grip tab 19 can be deformed by embossing, in such a way that partial areas thereof protrude beyond the plane of the side weld 20, that is, they protrude. Since the double-walled grip tab 19 has a certain intrinsic stability due to welding, such a deformation of the grip tab 19 can be brought about by simple pressure stamping.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Bag Frames (AREA)

Claims (9)

  1. Emballage sous vide en un boyau d'une feuille composite multicouches pour des matières susceptibles d'être déversées, en particulier du café torréfié (moulu), qui est amené sous la forme d'un bloc de café (10) de forme stable et qui est pourvu d'un joint de fermeture supérieur (11) dans la zone d'un pliage à ailes (14), une languette de déchirage (17) étant agencée dans la zone du pliage à ailes (14) entre le bloc de café (10) et le joint de fermeture (11), cette languette étant guidée jusque dans la zone d'une patte de prise (19) du côté du bord qui est définie par des découpes (22, 23; 26, 27, 28, 29) de la feuille composite ici soudée et qui se trouve à l'intérieur d'une soudure latérale (20), caractérisé en ce qu'une extrémité (18), tournée vers la patte de prise (19), de la languette de déchirage (17) est agencée à une certaine distance des découpes (22, 23; 26, 27, 28, 29) et d'une extrémité de patte de prise.
  2. Emballage sous vide suivant la revendication 1, caractérisé en ce que l'extrémité (18), tournée vers la patte de prise (19), de la languette de déchirage (17) est agencée à l'intérieur d'une zone de bord adjacente de la soudure latérale (20).
  3. Emballage sous vide suivant l'une des revendications 1 et 2, caractérisé en ce que la patte de prise (19) est, par des découpes correspondantes (26,27,28,29), formée à une certaine distance du bord latéral libre (21) de la feuille composite soudée, de telle façon que des ailes de matière (30,31,32) de la soudure latérale (20) entourent la patte de prise (19) à la manière d'un cadre et puissent être saisies lors de la manipulation de la patte de prise (19).
  4. Emballage sous vide suivant la revendication 3, caractérisé en ce que la patte de prise (19) est arrondie à l'extrémité libre et est limitée par une découpe en U couché (26) à l'intérieur de la soudure latérale (20).
  5. Emballage sous vide suivant la revendication 1 ainsi que suivant une ou plusieurs des autres revendications, caractérisé en ce que l'extrémité (18), tournée vers la patte de prise (19), de la languette de déchirage (17) s'étend entre deux soudures d'étanchéité (24,25) séparées et guidées à côté de la languette de déchirage (17) et en ce que les découpes (22,23) pour la formation de la patte de prise (19) sont agencées à l'intérieur des soudures d'étanchéité (24,25) à une certaine distance des bords, tournés vers la languette de déchirage (17), des soudures d'étanchéité (24,25).
  6. Emballage sous vide suivant la revendication 1 ainsi que suivant une ou plusieurs des autres revendications, caractérisé en ce que la languette de déchirage (17) est agencée dans la zone d'une pièce de transition trapézoïdale (16) du pliage à ailes (14), une soudure latérale (35) reliant mutuellement les deux feuilles composites étant également agencée dans la zone de la pièce de transition (16) et étant réalisée sous une forme approximativement trapézoïdale.
  7. Emballage sous vide suivant la revendication l ainsi que suivant une ou plusieurs des autres revendications, caractérisé en ce que l'extrémité, opposée à la patte de prise (19), de la languette de déchirage (17) est noyée dans une soudure d'extrémité (34) des feuilles composites.
  8. Emballage sous vide suivant l'une des revendications 3 et 4, caractérisé en ce qu'un interstice (36) réalisé sous la forme d'un U couché est disposé entre la patte de prise (19) et les ailes de matière (30,31,32) entourant celle-ci.
  9. Emballage sous vide suivant la revendication 1 ainsi que suivant une ou plusieurs des autres revendications, caractérisé en ce que la patte de prise (19) est déformée par estampage de telle façon qu'au moins une zone partielle fasse saillie de manière minime à partir du plan de la soudure latérale (20).
EP88109907A 1987-07-02 1988-06-22 Emballage sous-vide, en particulier pour café torréfié (moulu) Expired - Lifetime EP0298302B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88109907T ATE85293T1 (de) 1987-07-02 1988-06-22 Vakuum-verpackung, insbesondere fuer (gemahlenen) roestkaffee.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE3721890 1987-07-02
DE3721890 1987-07-02
DE3737111 1987-11-02
DE3737111 1987-11-02
DE3807469A DE3807469A1 (de) 1987-07-02 1988-03-08 Vakuum-verpackung, insbesondere fuer (gemahlenen) roestkaffee
DE3807469 1988-03-08

Publications (3)

Publication Number Publication Date
EP0298302A2 EP0298302A2 (fr) 1989-01-11
EP0298302A3 EP0298302A3 (en) 1989-12-06
EP0298302B1 true EP0298302B1 (fr) 1993-02-03

Family

ID=27196176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88109907A Expired - Lifetime EP0298302B1 (fr) 1987-07-02 1988-06-22 Emballage sous-vide, en particulier pour café torréfié (moulu)

Country Status (8)

Country Link
US (1) US4927028A (fr)
EP (1) EP0298302B1 (fr)
JP (1) JPH01124576A (fr)
DE (2) DE3807469A1 (fr)
DK (1) DK363288A (fr)
ES (1) ES2038719T3 (fr)
FI (1) FI883160A (fr)
NO (1) NO882841L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1772380A1 (fr) 2005-09-28 2007-04-11 Kraft Foods R & D, Inc. Méthode et machine de conditionnement pour empaqueter un produit, et emballage contenant en particulier du café

Families Citing this family (18)

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DE8810752U1 (fr) * 1988-08-25 1990-01-25 Jacobs Suchard Gmbh, 2800 Bremen, De
DE3829042A1 (de) * 1988-08-26 1990-03-01 Jacobs Suchard Gmbh Vakuum-verpackung, verbundfolie zur herstellung einer vakuum-verpackung, vorrichtung zur herstellung der verbundfolie sowie verfahren zur herstellung von vakuum-verpackungen
DE3833939A1 (de) * 1988-10-05 1990-04-12 Jacobs Suchard Ag Vakuum-verpackung, verbundfolie zur herstellung einer vakuum-verpackung sowie verfahren zur herstellung derselben
US5175011A (en) * 1989-05-29 1992-12-29 Jacobs Suchard Ag Quick-opening bag for packaging, especially for vacuum packaging food products in particular coffee
DE8907723U1 (fr) * 1989-06-24 1989-08-10 Hoechst Ag, 6230 Frankfurt, De
US5408400A (en) * 1993-10-12 1995-04-18 Gordon; Chester D. Disposable sterile covering for dental and surgical lighting fixtures
US5633113A (en) * 1995-04-14 1997-05-27 Polaroid Corporation Mass transfer imaging media and methods of making and using the same
IT1320858B1 (it) * 2000-12-12 2003-12-10 Tetra Laval Holdings & Finance Confezione sigillata di tipo perfezionato per prodotti alimentariversabili.
CN1610633A (zh) * 2001-12-26 2005-04-27 旭化成派克斯株式会社 易开包装袋
US20050078890A1 (en) * 2001-12-26 2005-04-14 Kenjiro Abe Easy-to-unseal packaging bag
US7334679B2 (en) * 2004-03-15 2008-02-26 Hollister Incorporated Tear open package for hydrophilic-coated catheter
DE602007012342D1 (de) * 2006-06-08 2011-03-17 Hollister Inc Katheterproduktverpackung und herstellungsverfahren dafür
GB0617684D0 (en) * 2006-09-07 2006-10-18 Cadbury Schweppes Plc Packing of confectionery items
AU2008223524A1 (en) * 2007-03-02 2008-09-12 Monosol Rx, Llc Packet structure, such as for a film strip
HUE030706T2 (en) * 2007-11-19 2017-06-28 Hollister Inc Steam-hydrated catheter assembly, and a method for producing it
JP2008164636A (ja) * 2008-03-17 2008-07-17 Hioki Ee Corp コンタクトプローブ用固定具
DE202009011507U1 (de) * 2009-08-24 2009-12-24 Kraft Foods R & D, Inc., Northfield Verpackung mit einem Lebensmittel darin und Maschine zur Herstellung eines verpackten Lebensmittels
JP4717144B2 (ja) * 2010-01-08 2011-07-06 日置電機株式会社 コンタクトプローブ用固定具

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US4027455A (en) * 1972-03-14 1977-06-07 Tetra Pak Developpement Sa Packing containers with ripping thread opening and packing material webs for the manufacture of the packing containers
DE7508452U (de) * 1975-03-18 1975-07-10 Sig Schweiz Industrieges Vakuumpackung
CH636057A5 (de) * 1979-03-16 1983-05-13 Sig Schweiz Industrieges Aufreissverschluss an einem doppelbeutel fuer schuettgueter.
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US4650079A (en) * 1983-02-08 1987-03-17 Kazuhiro Itoh Easy-to-open synthetic resin bag and apparatus for the manufacture thereof
DE3306314A1 (de) * 1983-02-23 1984-10-18 Kanari Onojo Fukuoka Tani Leicht zur oeffnender kunstharz-beutel und vorrichtung zu seiner herstellung
FR2558802B1 (fr) * 1984-02-01 1986-11-21 Grellier Jean Nouveau conditionnement a bandelette d'arrachage, et appareillage pour sa fabrication
US4705174A (en) * 1984-02-29 1987-11-10 Fres-Co System Usa, Inc. Sealed flexible container with non-destructive peelable opening
JPS6228354A (ja) * 1985-07-19 1987-02-06 本州製紙株式会社 易開封性シユリンク包装体ならびにその製造法
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DE8612836U1 (de) * 1986-05-10 1986-09-11 Jacobs Suchard GmbH, 28199 Bremen Beutelverpackung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1772380A1 (fr) 2005-09-28 2007-04-11 Kraft Foods R & D, Inc. Méthode et machine de conditionnement pour empaqueter un produit, et emballage contenant en particulier du café

Also Published As

Publication number Publication date
EP0298302A2 (fr) 1989-01-11
ES2038719T3 (es) 1993-08-01
JPH01124576A (ja) 1989-05-17
DE3878056D1 (de) 1993-03-18
FI883160A0 (fi) 1988-07-01
DK363288A (da) 1989-01-03
FI883160A (fi) 1989-01-03
DK363288D0 (da) 1988-06-30
US4927028A (en) 1990-05-22
NO882841D0 (no) 1988-06-27
NO882841L (no) 1989-01-03
DE3807469A1 (de) 1989-01-12
EP0298302A3 (en) 1989-12-06

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