EP0850172B1 - Process for packaging perishable goods - Google Patents

Process for packaging perishable goods Download PDF

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Publication number
EP0850172B1
EP0850172B1 EP96929280A EP96929280A EP0850172B1 EP 0850172 B1 EP0850172 B1 EP 0850172B1 EP 96929280 A EP96929280 A EP 96929280A EP 96929280 A EP96929280 A EP 96929280A EP 0850172 B1 EP0850172 B1 EP 0850172B1
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EP
European Patent Office
Prior art keywords
braid
packaging
plait
sealant
clip
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
EP96929280A
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German (de)
French (fr)
Other versions
EP0850172A2 (en
Inventor
Jürgen Hanten
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.)
Poly Clip System GmbH and Co KG
Original Assignee
Poly Clip System GmbH and Co KG
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 Poly Clip System GmbH and Co KG filed Critical Poly Clip System GmbH and Co KG
Publication of EP0850172A2 publication Critical patent/EP0850172A2/en
Application granted granted Critical
Publication of EP0850172B1 publication Critical patent/EP0850172B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/1616—Elements constricting the neck of the bag
    • B65D33/1641—Staples, clips or clamps made of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags

Definitions

  • the invention relates to a method for packaging perishable Packaged goods, in which a film tube after filling at least one open end gathered into a braid, the braid then with a clip sealed and the packaging is then sterilized.
  • the invention has for its object the spoilage of packaged goods to prevent film tube packaging more reliably than before.
  • this object is achieved in a method of type mentioned above, in which the braid end after sterilization with hot liquid Sealant of at least 120 ° C is sealed.
  • the essence of the invention is that the sealing according to the invention also after cooling the sterilized packaging can be done because possibly in bacteria that have penetrated the foil braid due to the temperature of at least 120 ° C Sealant can be killed. Shrinkage processes of the film material during sterilization and cooling can not affect the seal.
  • the one produced by the process according to the invention Packaging is particularly leakproof because greases and oils are used during sterilization be washed out of the braid interior, so that the adhesion of the sealant on the braid significantly improved if not by sterilizing is made possible in the first place.
  • a preferred variant of the method according to the invention is that the Sterilized braid to seal in a liquid sealant for a limited time is immersed and that adheres to the braid after immersion Sealant is then allowed to dry.
  • the immersion of the one to be sealed Braid in the liquid sealant can make the tightness and Increase the reliability of the cable clasp again.
  • the liquid sealant can work particularly well in the capillaries of the packaging braid penetrate and close it.
  • An alternative to immersion of the sterilized braid in the liquid sealant consists of the Spray sealant onto the braid using a nozzle.
  • a preferred further development of the method is to pull the braid as far in immerse the sealant that the braid and the clip with sealant are wetted. Since the clip is also surrounded by sealing compound, the Claw the sealant particularly well at the closed end of the plait, see above that it does not detach itself from the end of the braid even under unfavorable circumstances.
  • Thermoplastic that is suitable as a sealing compound after cooling or hardening stay elastic. Even adhesives that harden through light, air or water, can be used.
  • the process begins with the filling of a film tube in the usual way and Way: A film tube supply is drawn onto a filling tube in such a way that one end is located in front of the outlet opening of the filling tube. That end is locked. Now that the filling material is pressed through the filling tube, this is achieved Fill material into the film tube and fill it starting at the closed end on. As the filler mass increases, the film tube correspondingly becomes Foil tube supply pulled off on the filling tube. When finally one sufficient amount of the filling material in the film tube in front of the filling pipe outlet opening the film tube is immediately in front of the filling pipe outlet known manner gathered from appropriate tools into a braid and closed with a clip.
  • Foil tube packaging separated from the rest of the foil tube and can be sterilized.
  • the ends of the braid become sticky at the same time Fat or similar exempted.
  • This will sterilize and clean the sealed packaging ends to a process step.
  • a separate one Cleaning is not necessary.
  • the entire packaging is sterilized by heating to over 120 ° C and then cooling. The It is heated in an autoclave at an internal pressure of approx. 2.3 bar. After this The goods to be sterilized and the packaging are cooled with cooling water in a sterilizing process.
  • a film tube is used for the packaging to be sterilized shrinks sharply after sterilization.
  • the packaging comes after the cooling process very tight, and the braid protruding from the clip shrinks by approx. 10 until 20%. If possible, the foil braid should not protrude beyond the clip in order to to achieve a compact, small and material-saving seal.
  • Each closed end of the braid is immersed in a liquid sealant, so that both the braid and the clip are wetted with sealant become.
  • the liquid sealant has a temperature of over 120 ° C and helps to sterilize each end of the packaging again. After all, it is possible that a braid end between the actual sterilization and sealing, for example by cooling water, in contact with bacteria is coming. The hot, liquid sealant penetrates during sealing into the capillaries of the braid and seals them.
  • sealant is then left to dry. Because the sealant if possible also includes the locking clip, it is ultimately practical permanently clawed to the closed end of the braid.
  • the result is the image shown in the figure:
  • the one with a filling, e.g. Sausage, filled film tube 10 is gathered at one end into a braid 12 and closed with a clip 14.
  • the clip 14 and the braid 12 are included completely enclosed by dried sealant 16.
  • Such a closure allowed if the packaging is produced by the method according to the invention has been a permanent preservation of the contents for over a year without the packaging and the contents must be cooled.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Package Closures (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren zum Verpacken von verderblichem Verpackungsgut, bei dem ein Folienschlauch nach dem Füllen an mindestens einem offenen Ende zu einem Zopf zusammengerafft, der Zopf daraufhin mit einem Clip verschlossen und das Verpackungsgut anschließend sterilisiert wird.The invention relates to a method for packaging perishable Packaged goods, in which a film tube after filling at least one open end gathered into a braid, the braid then with a clip sealed and the packaging is then sterilized.

Es ist heute üblich, haltbare Kochwürste, nämlich Leber- und Blutwürste, aber auch Tier- und Babynahrung in einen Kunststoffdarm zu füllen, dessen Enden nach dem Füllen zu einem Zopf zusammengerafft und mit Clips verschlossen werden, worauf das Verpackungsgut in der geschlossenen Folienschlauchverpackung in einem Autoklaven gekocht und dadurch sterilisiert wird. Dies geschieht mit dem Ziel, eine möglichst lange, ungekühlte Haltbarkeit des Verpackungsgutes zu erreichen. Erfahrungsgemäß verderben aber etwa 10% des auf die beschriebene Art und Weise verpackten Verpackungsgutes vorzeitig, weil beispielsweise Bakterien durch den Zopf in das Innere der Verpackung eindringen. It is common today, but also durable cooked sausages, namely liver and blood sausages To fill animal and baby food in a plastic casing, the ends of which after Filling gathered into a braid and sealed with clips, followed by the packaged goods in the closed tubular film packaging in one Autoclave is boiled and thereby sterilized. This is done with the aim of to achieve the longest possible, uncooled shelf life of the packaged goods. Experience has shown, however, that about 10% of the spoil in the manner described and Wrapped packaged goods prematurely, for example because of bacteria penetrate the braid into the inside of the packaging.

Der Erfindung liegt die Aufgabe zugrunde, das Verderben von Verpackungsgut in einer Folienschlauchverpackung zuverlässiger als bisher zu unterbinden.The invention has for its object the spoilage of packaged goods to prevent film tube packaging more reliably than before.

Die Lösung dieser Aufgabe besteht erfindungsgemäß in einem Verfahren der eingangs genannten Art, bei dem das Zopfende nach dem Sterilisieren mit heißflüssiger Dichtungsmasse von mindestens 120° C abgedichtet wird.According to the invention, this object is achieved in a method of type mentioned above, in which the braid end after sterilization with hot liquid Sealant of at least 120 ° C is sealed.

Der Kern der Erfindung besteht darin, daß das erfindungsgemäße Abdichten auch nach dem Abkühlen der sterilisierten Verpackung erfolgen kann, weil eventuell in den Folienzopf eingedrungene Bakterien durch die mindestens 120° C heiße Dichtungsmasse abgetötet werden. Schrumpfungsvorgänge des Folienmaterials während des Sterilisierens und des Abkühlens können die Abdichtung nicht beeinträchtigen. Außerdem ist die nach dem erfindungsgemäßen Verfahren hergestellte Verpackung auch deshalb besonders dicht, weil beim Sterilisieren Fette und Öle aus dem Zopfinneren ausgewaschen werden, so daß sich die Haftung der Dichtungsmasse an dem Zopf deutlich verbessert, wenn sie nicht durch das Sterilisieren überhaupt erst ermöglicht wird.The essence of the invention is that the sealing according to the invention also after cooling the sterilized packaging can be done because possibly in bacteria that have penetrated the foil braid due to the temperature of at least 120 ° C Sealant can be killed. Shrinkage processes of the film material during sterilization and cooling can not affect the seal. In addition, the one produced by the process according to the invention Packaging is particularly leakproof because greases and oils are used during sterilization be washed out of the braid interior, so that the adhesion of the sealant on the braid significantly improved if not by sterilizing is made possible in the first place.

Es ist zwar aus der DE-PS 40 19 937 und der DE-OS 35 00 625 bekannt, das jeweils freie Ende eines jeden mit einem Clip verschlossenen Folienschlauch-Zopfes mit Dichtungsmasse zu versiegeln. Auf diese Weise soll unter anderem ein Eindringen von Sauerstoff und Feuchtigkeit sowie von Bakterien und Pilzen verhindert werden. Dies gelingt aber bei zu sterilisierenden, gefüllten Verpackungen nicht ohne weiteres: Falls die Versiegelung schon vor oder unmittelbar nach dem Sterilisieren auf das Verpackungsende aufgebracht werden würde, käme es infolge des Schrumpfens des Folienschlauches während des Abkühlens nach dem Sterilisieren zu Undichtigkeiten, weil sich der schrumpfende Folienschlauch von der Dichtungsmasse löst. Würde die Verpackung dagegen erst nach dem Abkühlen versiegelt, besteht die Gefahr, daß die sich beim Abkühlen kontrahierende Verpackung durch den noch unversiegelten Folienzopf Bakterien z.B. aus dem Kühlwasser aufnimmt.It is known from DE-PS 40 19 937 and DE-OS 35 00 625 that each free end of each foil tube braid closed with a clip to seal with sealant. In this way, among other things, an intrusion prevented from oxygen and moisture as well as from bacteria and fungi become. However, this does not succeed with filled packaging to be sterilized without further ado: if the sealant is already before or immediately after sterilization would be applied to the end of the packaging, it would come as a result of Shrinking of the film tube during cooling after sterilization to leaks because the shrinking film tube separates from the sealant solves. If, on the other hand, the packaging was only sealed after cooling, there is a risk that the packaging contracting when cooling down the still unsealed foil braid bacteria e.g. from the cooling water.

Eine bevorzugte Variante des erfindungsgemäßen Verfahrens besteht darin, daß der sterilisierte Zopf zum Abdichten für eine begrenzte Zeit in eine flüssige Dichtungsmasse eingetaucht wird und die nach dem Eintauchen an dem Zopf haftende Dichtungsmasse anschließend trocknen gelassen wird. Das Eintauchen des abzudichtenden Zopfes in die flüssige Dichtungsmasse kann die Dichtigkeit und Zuverlässigkeit des Zopfverschlusses noch einmal erhöhen. Während des Eintauchens kann die flüssige Dichtungsmasse besonders gut in Kapillaren des Verpackungszopfes eindringen und diese verschließen. Eine Alternative zum Eintauchen des sterilisierten Zopfes in die flüssige Dichtungsmasse besteht darin, die Dichtungsmasse mit einer Düse auf den Zopf aufzuspritzen.A preferred variant of the method according to the invention is that the Sterilized braid to seal in a liquid sealant for a limited time is immersed and that adheres to the braid after immersion Sealant is then allowed to dry. The immersion of the one to be sealed Braid in the liquid sealant can make the tightness and Increase the reliability of the cable clasp again. During the immersion the liquid sealant can work particularly well in the capillaries of the packaging braid penetrate and close it. An alternative to immersion of the sterilized braid in the liquid sealant consists of the Spray sealant onto the braid using a nozzle.

Eine bevorzugte Weiterbildung des Verfahrens besteht darin, den Zopf so weit in die Dichtungsmasse einzutauchen, daß der Zopf und der Clip mit Dichtungsmasse benetzt sind. Indem auch der Clip von Dichtungsmasse umgeben ist, kann sich die Dichtungsmasse besonders gut an dem verschlossenen Zopfende verkrallen, so daß sie sich auch unter ungünstigen Umständen nicht von dem Zopfende löst.A preferred further development of the method is to pull the braid as far in immerse the sealant that the braid and the clip with sealant are wetted. Since the clip is also surrounded by sealing compound, the Claw the sealant particularly well at the closed end of the plait, see above that it does not detach itself from the end of the braid even under unfavorable circumstances.

Als Dichtmasse geeignet sind Thermoplaste, die nach dem Abkühlen oder Aushärten elastisch bleiben. Auch Kleber, die durch Licht, Luft oder Wasser aushärten, können eingesetzt werden.Thermoplastic that is suitable as a sealing compound after cooling or hardening stay elastic. Even adhesives that harden through light, air or water, can be used.

Das erfindungsgemäße Verfahren sowie eine mit dem Verfahren hergestellte Verpackung sollen nun an Hand der Zeichnungsfigur erläutert werden. Sie zeigt ein verschlossenes Ende einer Folienschlauch-Verpackung nach dem erfindungsgemäßen Verpacken.The method according to the invention and one produced using the method Packaging will now be explained using the drawing figure. It shows one closed end of a film tube packaging according to the invention Packing.

Das Verfahren beginnt mit dem Befüllen eines Folienschlauches auf übliche Art und Weise: Ein Folienschlauch-Vorrat ist auf ein Füllrohr derart aufgezogen, daß sich sein eines Ende vor der Auslaßöffnung des Füllrohres befindet. Dieses Ende ist verschlossen. Indem nun Füllgut durch das Füllrohr gepreßt wird, gelangt das Füllgut in den Folienschlauch und füllt diesen bei dem verschlossenen Ende beginnend auf. Mit zunehmender Füllmasse wird entsprechend Folienschlauch von dem Folienschlauch-Vorrat auf dem Füllrohr abgezogen. Wenn sich schließlich eine ausreichende Menge des Füllgutes in dem Folienschlauch vor der Füllrohrauslaßöffnung befindet, wird der Folienschlauch unmittelbar vor dem Füllrohrauslaß in bekannter Weise von entsprechenden Werkzeugen zu einem Zopf zusammengerafft und mit einem Clip verschlossen.The process begins with the filling of a film tube in the usual way and Way: A film tube supply is drawn onto a filling tube in such a way that one end is located in front of the outlet opening of the filling tube. That end is locked. Now that the filling material is pressed through the filling tube, this is achieved Fill material into the film tube and fill it starting at the closed end on. As the filler mass increases, the film tube correspondingly becomes Foil tube supply pulled off on the filling tube. When finally one sufficient amount of the filling material in the film tube in front of the filling pipe outlet opening the film tube is immediately in front of the filling pipe outlet known manner gathered from appropriate tools into a braid and closed with a clip.

Anschließend wird die nunmehr an beiden Enden verschlossene und gefüllte Folienschlauch-Verpackung von dem übrigen Folienschlauch abgetrennt und kann sterilisiert werden. Beim Sterilisieren werden gleichzeitig die Zopfenden von anhaftendem Fett o.ä. befreit. Dadurch werden das Sterilisieren und das Reinigen der verschlossenen Verpackungsenden zu einem Verfahrensschritt. Ein separates Reinigen ist nicht notwendig. In der Regel wird die gesamte Verpackung sterilisiert werden, indem sie auf über 120°C erhitzt und anschließend abgekühlt wird. Das Erhitzen erfolgt dabei in einem Autoklaven bei ca. 2,3 bar Innendruck. Nach dem Sterilisieren werden Verpackungsgut und Verpackung mit Kühlwasser abgekühlt.Then the now closed and filled at both ends Foil tube packaging separated from the rest of the foil tube and can be sterilized. During sterilization, the ends of the braid become sticky at the same time Fat or similar exempted. This will sterilize and clean the sealed packaging ends to a process step. A separate one Cleaning is not necessary. As a rule, the entire packaging is sterilized by heating to over 120 ° C and then cooling. The It is heated in an autoclave at an internal pressure of approx. 2.3 bar. After this The goods to be sterilized and the packaging are cooled with cooling water in a sterilizing process.

Für die zu sterilisierenden Verpackungen wird ein Folienschlauch eingesetzt, der nach dem Sterilisieren stark schrumpft. Die Verpackung wird nach dem Kühlvorgang sehr stramm, und der über den Clip hinausragende Zopf schrumpft um ca. 10 bis 20%. Der Folienzopf sollte aber möglichst nicht über den Clip hinausragen, um eine kompakte, kleine und materialsparende Abdichtung zu erreichen. Nach dem Sterilisieren wird jedes verschlossene Zopfende in flüssige Dichtungsmasse getaucht, so daß sowohl der Zopf als auch der Clip mit Dichtungsmasse benetzt werden. Die flüssige Dichtungsmasse hat dabei eine Temperatur von über 120°C und trägt dazu bei, daß jedes Verpackungsende noch einmal sterilisiert wird. Immerhin ist es ja möglich, daß ein Zopfende zwischen dem eigentlichen Sterilisieren und dem Abdichten, beispielsweise durch Kühlwasser, mit Bakterien in Berührung kommt. Während des Abdichtens dringt die heiße, flüssige Dichtungsmasse in die Kapillaren des Zopfes ein und versiegelt diese.A film tube is used for the packaging to be sterilized shrinks sharply after sterilization. The packaging comes after the cooling process very tight, and the braid protruding from the clip shrinks by approx. 10 until 20%. If possible, the foil braid should not protrude beyond the clip in order to to achieve a compact, small and material-saving seal. After this Each closed end of the braid is immersed in a liquid sealant, so that both the braid and the clip are wetted with sealant become. The liquid sealant has a temperature of over 120 ° C and helps to sterilize each end of the packaging again. After all, it is possible that a braid end between the actual sterilization and sealing, for example by cooling water, in contact with bacteria is coming. The hot, liquid sealant penetrates during sealing into the capillaries of the braid and seals them.

Anschließend wird die Dichtungsmasse trocknen gelassen. Da die Dichtungsmasse möglichst auch den Verschlußclip mit einschließt, ist sie schließlich praktisch unlösbar mit dem verschlossenen Zopfende verkrallt.The sealant is then left to dry. Because the sealant if possible also includes the locking clip, it is ultimately practical permanently clawed to the closed end of the braid.

Es ergibt sich dann das in der Figur gezeigte Bild: Der mit einem Füllgut, z.B. Wurst, gefüllte Folienschlauch 10 ist an einem Ende zu einem Zopf 12 zusammengerafft und mit einem Clip 14 verschlossen. Der Clip 14 und der Zopf 12 sind dabei ganz von getrockneter Dichtungsmasse 16 eingeschlossen. Ein solcher Verschluß erlaubt, wenn die Verpackung nach dem erfindungsgemäßen Verfahren hergestellt wurde, eine dauerhafte Konservierung des Füllgutes über ein Jahr hinaus, ohne daß die Verpackung samt Füllgut gekühlt werden muß.The result is the image shown in the figure: The one with a filling, e.g. Sausage, filled film tube 10 is gathered at one end into a braid 12 and closed with a clip 14. The clip 14 and the braid 12 are included completely enclosed by dried sealant 16. Such a closure allowed if the packaging is produced by the method according to the invention has been a permanent preservation of the contents for over a year without the packaging and the contents must be cooled.

Claims (3)

  1. A process for packaging perishable goods: where at least one open end of a tubular film is gathered into a plait and the plait is closed with a clip, the packaged goods are ten sterilized together with the package and subsequently cooled, whereupon the end of the plait is sealed with a hot-melt sealing compound of at least 120°C.
  2. The process as claimed in claim 1, characterized in that for sealing purposes the sterilized plait is immersed into the sealing compound for a limited period, and the sealing compound adhering on the plait after the immersion is subsequently dried.
  3. The process as claimed in claim 2, characterized in that the pat is immersed into the sealing compound to such an extent that the plait and the clip are wetted with sealing compound.
EP96929280A 1995-09-14 1996-08-14 Process for packaging perishable goods Expired - Lifetime EP0850172B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19533936 1995-09-14
DE19533936A DE19533936C1 (en) 1995-09-14 1995-09-14 Packaging method for perishable foodstuffs
PCT/EP1996/003651 WO1997010146A1 (en) 1995-09-14 1996-08-14 Process for packaging perishable goods

Publications (2)

Publication Number Publication Date
EP0850172A2 EP0850172A2 (en) 1998-07-01
EP0850172B1 true EP0850172B1 (en) 1999-05-26

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EP96929280A Expired - Lifetime EP0850172B1 (en) 1995-09-14 1996-08-14 Process for packaging perishable goods

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EP (1) EP0850172B1 (en)
AU (1) AU708407B2 (en)
BR (1) BR9610512A (en)
CA (1) CA2229309A1 (en)
DE (2) DE19533936C1 (en)
PL (1) PL328137A1 (en)
WO (1) WO1997010146A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29809514U1 (en) * 1998-05-27 1999-09-30 fischerwerke Artur Fischer GmbH & Co. KG, 72178 Waldachtal Closure for tubular bags with two-component materials
DE20003270U1 (en) * 2000-02-23 2001-07-05 Kettenbach GmbH & Co. KG, 35713 Eschenburg Foil tube packaging for a pasty mass
DE20010481U1 (en) 2000-06-16 2000-09-28 D'amato, Vincenzo, 68775 Ketsch Packaging for ice cream

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3500625A1 (en) * 1984-01-11 1985-08-29 Knieriem, Günter, Dipl.-Ing. (FH), 6802 Ladenburg Tubular bag package
DE4019937A1 (en) * 1990-06-22 1992-01-09 Niedecker Herbert Sealing end closure section of bag pack - involves cap with seal engaging round gathered end of bag

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159077A (en) * 1976-12-09 1979-06-26 W. R. Grace & Co. Process for closing a flexible container and the container formed thereby

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3500625A1 (en) * 1984-01-11 1985-08-29 Knieriem, Günter, Dipl.-Ing. (FH), 6802 Ladenburg Tubular bag package
DE4019937A1 (en) * 1990-06-22 1992-01-09 Niedecker Herbert Sealing end closure section of bag pack - involves cap with seal engaging round gathered end of bag

Also Published As

Publication number Publication date
DE19533936C1 (en) 1996-11-14
PL328137A1 (en) 1999-01-18
WO1997010146A1 (en) 1997-03-20
BR9610512A (en) 1999-05-04
EP0850172A2 (en) 1998-07-01
CA2229309A1 (en) 1997-03-20
DE59602019D1 (en) 1999-07-01
AU6874796A (en) 1997-04-01
AU708407B2 (en) 1999-08-05

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