WO1999064308A1 - Reclosable bag - Google Patents
Reclosable bag Download PDFInfo
- Publication number
- WO1999064308A1 WO1999064308A1 PCT/CH1999/000190 CH9900190W WO9964308A1 WO 1999064308 A1 WO1999064308 A1 WO 1999064308A1 CH 9900190 W CH9900190 W CH 9900190W WO 9964308 A1 WO9964308 A1 WO 9964308A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bag
- seam
- sealing
- upper edge
- wall
- 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.)
- Ceased
Links
Classifications
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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
- B65D33/18—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps
- B65D33/20—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps using pressure-sensitive adhesive
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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
- 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
- B65D75/5855—Peelable seals
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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
- B65D2575/00—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
- B65D2575/52—Details
- B65D2575/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D2575/586—Opening or contents-removing devices added or incorporated during package manufacture with means for reclosing
-
- 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
- B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
- B65D75/20—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
Definitions
- the present invention relates to a reclosable bag according to the preamble of claim 1. It relates in particular to a bag for bulk goods from the food sector, for example for candies or chewing gum.
- the carton depending on the bulk material, the carton must be coated on the inside or there must be an inner bag so that the hygiene regulations are taken into account. Furthermore, the cardboard box must be surrounded with a plastic film to ensure a seal before first use. This makes production more expensive and makes waste disposal more difficult. Another disadvantage is when the cardboard boxes are kept in handbags or clothes bags. Since they rub against other objects, they open automatically and the bulk goods undesirably pour into your pocket. Another disadvantage is that the cardboard boxes need a lot of storage space even when empty.
- Pouches made of a film composite are simpler and can be produced with less material. Most of such bags are sealed all around with weld seams, whereby a seam has to be torn open the first time it is opened. Such bags can be closed again by folding over the torn edge. An aluminum layer, which stiffens the film, to thereby, ensure that the folded edge remains haftem albeit with poor ⁇ success in their position. If the edge is not always folds bent, so such bags very quickly take on an unsavory appearance.
- DE-A-38'39'143, DE-A-38 '35' 721 and DE-A-37 '21' 675 disclose various designs of bags made of plastic film, which have a sealing tab for repeated sealing of the bag .
- These bags have a front and a rear bag wall, the rear bag wall projecting beyond the front around the closure flap.
- the rear bag wall forms, together with an upper edge of the front bag wall, a filling opening through which the bulk material is filled. This filler opening is then closed with a sealing seam, for example welded or glued.
- the bags described in these publications each have a tear seam in the form of a perforation which runs at a distance from the sealing seam.
- this tear seam is torn open, which creates a removal opening.
- the sealed seam remains intact.
- the flap can be folded over this removal opening and releasably fixed in this position on the front bag wall with an adhesive element. Thanks to the flap, the bag can be opened and closed repeatedly.
- the adhesive element also prevents the bag from opening unintentionally.
- a disadvantage of these bags, however, is that the perforation is relatively complex. In addition, the perforation is a weak point of the bag, which can unintentionally tear open on the one hand and on the other hand also in the intact state, the tightness of the bag vermin ⁇ changed.
- CH-A-675'711 describes a reclosable bag for candies in the form of a traditional seed bag, which is also provided with a sealing flap and a glued filling opening.
- the bag can be opened by means of a tear tongue which is molded onto the front bag wall and which is continued in the form of perforated tear slits which extend across the bonded zone and further in the front bag wall.
- a shred of the front pouch wall is torn open, creating a removal opening.
- a disadvantage of this bag appears that the removal opening can be too large if the bag is torn open or that it increases more and more during use of the bag.
- the hanging scraps are visually distracting.
- the sealed seam and the tear seam are identical. Perforations are not necessary. If the bulk goods are filled in via a bag opening which is formed by the upper edge of a front bag wall and a rear bag wall, the filling and removal openings are also identical.
- a tear-open flap in combination with the closing flap makes it easier to loosen the sealed seam without destroying the pouch walls, so that there are no loosely hanging or torn scraps.
- the combination of tear-open and closure flaps makes it possible to make the tear-open flap as narrow as possible, since the wide closure flap is easy to grasp by hand.
- the bag according to the invention can be manufactured in one piece from an essentially rectangular web of material, in particular a plastic film, by simple folding. Only two side edges and a bag opening need to be sealed. The same method is preferably used for all seals, the bag opening being provided with a weaker seal than the side edges. The latter can preferably be achieved in that the sealing of the side edges is wider.
- the sealing of the bag opening a tear strip on which facilitates only ⁇ times breaking the bag.
- the bag according to the invention is particularly suitable for small quantities of bulk goods, that is to say for bags in pocket size.
- Figure la is a view of a bag according to the invention from the front in the open state;
- Figure lb a perspective view of the bag measured
- Figure 2 shows the bag according to Figure la in the closed state
- Figure 3 shows a second embodiment of the bag according to the invention.
- Figure 4 shows a third embodiment of the bag according to the invention.
- Figures la, b and 2 show a first embodiment of the bag according to the invention. It is made of a material suitable for the bulk material to be picked up.
- Plastic composite films are preferably used, such as polypropylene co-extruded / polyethylene peel, polypropylene co-extruded / polypropylene co-extruded, polypropylene oriented / polypropylene co-extruded, polyamide oriented / polyethylene peel, polyamide oriented / polypropylene co-extruded.
- Such plastics can be provided with inseparable and detachable sweat seals by simple heat treatment.
- the bag has a front bag wall 1 and a rear bag wall 2, the rear bag wall 2 projecting beyond the front by a closing flap 3.
- the closing flap 3 is separated from the remaining rear bag wall 2 by a fold line 30.
- the bag is folded from a rectangular web of material, as can be seen from FIG. 1b. In this example, the web is folded in a w-shape, so that a bottom fold 4 is formed between the front and rear bag wall 1, 2. This creates a so-called standing pouch.
- Other types of folding for example U-shaped or V-shaped folding, are also possible.
- the upper edge of the front bag wall 1 forms with the rear bag wall 2 a bag opening, which forms a removal opening for the bulk material and preferably also serves as an opening for the bulk material.
- the closure flaps 3 initiated at the fold line 30 to the upper edge of the folding wall the bag 1 before ⁇ and fix in this position where ⁇ is covered by the Beutelo réelle. For detachable fixation of the closure flap 3 there is a on the front bag wall Adhesive zone 6 is present, to which the closing flap 3 is pressed.
- connection partners i.e. the bag wall and / or sealing flaps, are provided with an adhesive layer.
- the side edges 11 of the front and rear bag wall 1, 2 are inseparably sealed to one another, preferably welded or glued.
- the type of sealing depends on the bag material and its exact course depends on the type of its folding.
- the bag opening is provided with a closing seam 5, which simultaneously forms a sealing seam and a tear seam, as will be explained further below. If the bag opening also forms the filling opening, the welding takes place after the bag has been filled. In another variant, the bulk material can also be filled in through one of the side edges. In this case, the opening of the bag is sealed during the production of the bag.
- the closing seam 5 can be released and is therefore weaker than the sealing of the side edges 11. This can be achieved in that the closing seam 5 is narrower than that of the side edges 11.
- the width of the closing seam 5 is at least approximately 2 mm and the width of the Sealing the side edges 11 approximately 6 mm.
- the closing seam 5 runs below the upper edge of the front bag wall 1 and is spaced apart from it. It also runs above the adhesive zone 6.
- the sealing of the side edges 11 ends at least approximately at the height of the closure seam 5.
- the front pouch wall 1 thus forms a tear-open flap 10 between the closure seam and the upper edge, which together with the closure flap 3 is a gripping means for tearing open the closure seam 5 forms.
- the bag closed by the closing seam 5 can thus be opened in a simple manner by holding the pull tab 10 in one hand and closing flap 3 in the other hand and pulling it apart. Since the flap 3 is relatively large and lies well in the hand, a narrow ice flap 10 is sufficient as a counterpart. In this example, the height of the pull tab 10 is 5-10 mm.
- the closing seam 5 is preferably bent, whereby it approaches the upper edge of the front bag wall 1 in the central region. As a result, this middle area is loosened first and only then is the remaining closure seam 5 loosened. So you can prevent that at hastily tearing open the side edges 11.
- the transition between the closing seam 5 and the sealing of the side edges 11 is also preferably such that the side edges 11 are not torn open. This can be achieved, for example, by chamfering and thinning the closure seam 5 in this area.
- FIGS. 3 and 4 show two further embodiments of the bag according to the invention.
- FIG. 3 there is a deviation from the pure rectangular shape in that the closing flap 3 is rounded.
- an adhesive element in the form of a buckle 7 is arranged on the closure flap 3, by means of which the "closure flap 3 can be detachably fixed to the front bag wall 1.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Abstract
Description
iederverschliessbarer Beutel resealable pouch
Die vorliegende Erfindung betrifft einen wiederverschliess- baren Beutel gemass Oberbegriff des Patentanspruches 1. Sie betrifft insbesondere einen Beutel für Schüttware aus dem Lebensmittelbereich, beispielsweise für Bonbons oder Kaugummi .The present invention relates to a reclosable bag according to the preamble of claim 1. It relates in particular to a bag for bulk goods from the food sector, for example for candies or chewing gum.
An heutige Verpackungen von Schüttwaren im Lebensmittelbereich werden mehrere Aufgaben gestellt. Sie müssen einen luftdichten und hygienischen Verschluss der Ware bis zu einer erstmaligen Oeffnung gewährleisten, sie sollten auf den Konsumenten ansprechend wirken und trotzdem möglichst einfach entsorgbar sein und ein geringes Abfallvolumen aufweisen. Nicht zuletzt sollten diese Verpackungen wiederverschliessbar sein, da gerade Bonbons in grösseren Zeitabständen genossen werden und die Verpackung zwischenzeitlich beispielsweise in einer Handtasche oder einer Jackentasche aufbewahrt wird. Es sind wiederverschliessbare Kartonboxen bekannt, welche zur Verpackung von kleinen Mengen Bonbons oder Kaugummi eingesetzt werden. Diese Kartonboxen sind zwar sehr robust und werden deshalb auch bei Aufbewahrung in einer Handtasche nicht zu einer unappetitlichen Masse zusammengedrückt. Sie weisen jedoch andere Nachteile auf: Je nach Schüttgut muss der Karton innen beschichtet sein oder es muss ein Innensack vorhanden sein, damit den Hygienevorschriften Rechnung getragen wird. Ferner muss die Kartonbox mit einer Kunststoffolie umgeben werden, um eine Versiegelung vor dem Erstgebrauch -zu gewährleisten. Dies verteuert die Herstellung und erschwert eine sinnvolle Abfallentsorgung. Ein weiterer Nachteil zeigt sich, wenn die Kartonboxen in Hand- oder Kleidertaschen aufbewahrt werden. Da sie an anderen Gegenständen reiben, öffnen sie sich selbsttätig und die Schüttware ergiesst sich unerwünschterweise in die Tasche. Als weitere Nachteil lässt sich anfügen, dass die Kartonboxen bereits im leeren Zustand unnötigerweise viel Lagerplatz benötigen.Today's packaging of bulk goods in the food sector has several tasks. They have to guarantee an airtight and hygienic closure of the goods until they are opened for the first time, they should appeal to the consumer and still be easy to dispose of and have a low waste volume. Last but not least, this packaging should be resealable, since candies can be enjoyed at longer intervals and the packaging is now kept in a handbag or jacket pocket, for example. Resealable cardboard boxes are known which are used for packaging small amounts of candy or chewing gum. These cardboard boxes are very robust and are therefore not compressed into an unsavory mass even when stored in a handbag. However, they have other disadvantages: depending on the bulk material, the carton must be coated on the inside or there must be an inner bag so that the hygiene regulations are taken into account. Furthermore, the cardboard box must be surrounded with a plastic film to ensure a seal before first use. This makes production more expensive and makes waste disposal more difficult. Another disadvantage is when the cardboard boxes are kept in handbags or clothes bags. Since they rub against other objects, they open automatically and the bulk goods undesirably pour into your pocket. Another disadvantage is that the cardboard boxes need a lot of storage space even when empty.
Einfacher und mit weniger Materialaufwand herstellbar sind Beutel aus einem Folienverbund. Die meisten derartigen Beutel sind rundherum mit Schweissnähten versiegelt, wobei beim erstmaligen Oeffnen eine Naht aufgerissen werden muss. Derartige Beutel lassen sich wieder verschliessen, indem die aufgerissene Kante umgefaltet wird. Eine Aluminiumschicht, welche die Folie versteift, soll dabei, wenn auch mit mangel¬ haftem Erfolg, gewährleisten, dass die umgefaltete Kante in ihrer Lage verbleibt. Wird die Kante nicht jedesmal sorg- fältig umgebogen, so nehmen derartige Beutel sehr schnell ein unappetitliches Aussehen an.Pouches made of a film composite are simpler and can be produced with less material. Most of such bags are sealed all around with weld seams, whereby a seam has to be torn open the first time it is opened. Such bags can be closed again by folding over the torn edge. An aluminum layer, which stiffens the film, to thereby, ensure that the folded edge remains haftem albeit with poor ¬ success in their position. If the edge is not always folds bent, so such bags very quickly take on an unsavory appearance.
DE-A-38'39'143, DE-A-38 ' 35 ' 721 und DE-A-37 ' 21 ' 675 offenbaren verschiedene Ausführüngsformen von Beuteln aus Kunststoff- Folie, welche einen Verschlusslappen zum wiederholten Ver- schliessen des Beutels auf. Diese Beutel weisen eine vordere und eine hintere Beutelwand auf, wobei die hintere Beutelwand die vordere um den Verschlusslappen überragt. Die hintere Beutelwand bildet zusammen mit einer oberen Kante der vorderen Beutelwand eine Einfüllöffnung, durch welche das Schüttgut eingefüllt wird. Diese Einfüllöffnung wird an- schliessend mit einer Siegelnaht verschlossen, beispielsweise verschweisst oder verklebt. Die in diesen Druckschriften beschriebenen Beutel weisen jeweils eine Aufreissnaht in Form einer Perforation auf, welche beabstandet zur Siegelnaht verläuft. Beim erstmaligen Oeffnen des Beutels wird diese Aufreissnaht aufgerissen, wodurch eine Entnahmeöffnung entsteht. Die Siegelnaht bleibt dabei intakt. Der Verschlusslappen lässt sich über diese Entnahmeöffnung umschlagen und in dieser Lage an der vorderen Beutelwand mit einem Klebelement lösbar fixieren. Dank dem Verschlusslappen lässt sich der Beutel wiederholte Male öffnen und schliessen. Das Kleb¬ element verhindert zudem, dass sich der Beutel ungewollt öffnet. Nachteilig an diesen Beuteln ist jedoch, dass die Anbringung einer Perforation relativ aufwendig ist. Zudem stellt die Perforation eine Schwachstelle des Beutels dar, welche einerseits ungewollt aufreissen kann und andererseits auch im intakten Zustand die Dichtheit des Beutels vermin¬ dert .DE-A-38'39'143, DE-A-38 '35' 721 and DE-A-37 '21' 675 disclose various designs of bags made of plastic film, which have a sealing tab for repeated sealing of the bag . These bags have a front and a rear bag wall, the rear bag wall projecting beyond the front around the closure flap. The rear bag wall forms, together with an upper edge of the front bag wall, a filling opening through which the bulk material is filled. This filler opening is then closed with a sealing seam, for example welded or glued. The bags described in these publications each have a tear seam in the form of a perforation which runs at a distance from the sealing seam. When the bag is opened for the first time, this tear seam is torn open, which creates a removal opening. The sealed seam remains intact. The flap can be folded over this removal opening and releasably fixed in this position on the front bag wall with an adhesive element. Thanks to the flap, the bag can be opened and closed repeatedly. The adhesive element also prevents the bag from opening unintentionally. A disadvantage of these bags, however, is that the perforation is relatively complex. In addition, the perforation is a weak point of the bag, which can unintentionally tear open on the one hand and on the other hand also in the intact state, the tightness of the bag vermin ¬ changed.
Ferner beschreibt CH-A-675'711 einen wiederverschliessbaren Beutel für Bonbons in der Form eines traditionellen Samenbeutels, welcher ebenfalls mit einem Verschlusslappen und einer verklebten Einfüllöffnung versehen ist. Der Beutel lässt sich mittels einer Reisszunge öffnen, welche an der vorderen Beutelwand angeformt ist und ihre Fortsetzung in Form von perforierten Anrissschlitzen findet, welche sich in der vorderen Beutelwand guer über die verklebte Zone und weiter erstrecken. Beim Oeffnen des Beutels wird somit ein Fetzen der vorderen Beutelwand aufgerissen, wodurch- eine Entnahmeöffnung entsteht. Nachteilig an diesem Beutel erscheint, dass die Entnahmeöffnung bei hastigem Aufreissen des Beutels zu gross ausfallen kann oder dass sie sich während des Gebrauchs des Beutels immer mehr vergrössert. Zudem ist der herunterhängende Fetzen optisch störend.Furthermore, CH-A-675'711 describes a reclosable bag for candies in the form of a traditional seed bag, which is also provided with a sealing flap and a glued filling opening. The bag can be opened by means of a tear tongue which is molded onto the front bag wall and which is continued in the form of perforated tear slits which extend across the bonded zone and further in the front bag wall. When the pouch is opened, a shred of the front pouch wall is torn open, creating a removal opening. A disadvantage of this bag appears that the removal opening can be too large if the bag is torn open or that it increases more and more during use of the bag. In addition, the hanging scraps are visually distracting.
Es ist somit Aufgabe der vorliegenden Erfindung einen wiederverschliessbaren Beutel der eingangs genannten Art zu schaffen, welcher die obengenannten Nachteile behebt.It is therefore an object of the present invention to provide a reclosable bag of the type mentioned at the outset which overcomes the disadvantages mentioned above.
Diese Aufgabe löst ein wiederverschliessbarer Beutel mit den Merkmalen des Patentanspruches 1. Weitere vorteilhafte Ausge- staltungsformen gehen aus den abhängigen Patentansprüchen hervor .This problem is solved by a reclosable bag with the features of patent claim 1. Further advantageous embodiments emerge from the dependent patent claims.
- A - Beim erfindungsgemässen Beutel sind Siegelnaht und Aufreissnaht identisch. Perforationen sind nicht notwendig. Wird die Schüttware über eine Beutelöffnung eingefüllt, welche durch die obere Kante einer vorderen Beutelwand und einer hinteren Beutelwand gebildet ist, so sind auch Einfüll- und Entnahmeöffnung identisch. Ein Aufreisslappen erleichtert in Kombination mit dem Verschlusslappen das Lösen der Siegelnaht, ohne dass die Beutelwände zerstört werden, so dass keine lose hängenden oder wegzureissende Fetzen vorhanden sind. Die Kombination von Aufreiss- und Verschlusslappen ermöglicht es, den Aufreisslappen möglichst schmal zu gestalten, da der breite Verschlusslappen mit der Hand gut greifbar ist.- A - In the case of the pouch according to the invention, the sealed seam and the tear seam are identical. Perforations are not necessary. If the bulk goods are filled in via a bag opening which is formed by the upper edge of a front bag wall and a rear bag wall, the filling and removal openings are also identical. A tear-open flap in combination with the closing flap makes it easier to loosen the sealed seam without destroying the pouch walls, so that there are no loosely hanging or torn scraps. The combination of tear-open and closure flaps makes it possible to make the tear-open flap as narrow as possible, since the wide closure flap is easy to grasp by hand.
Der erfindungsgemässe Beutel lässt sich einstückig aus einer im wesentlichen rechteckigen Warenbahn, insbesondere einer Kunststoff-Folie, durch einfaches Falten fertigen. Dabei müssen lediglich zwei Seitenränder und eine Beutelöffnung versiegelt werden. Vorzugsweise wird für alle Siegelungen dasselbe Verfahren angewendet, wobei die Beutelöffnung mit einer schwächeren Versiegelung versehen wird als die Seitenränder. Letzteres lässt sich vorzugsweise dadurch erzielen, dass die Versiegelung der Seitenränder breiter ist.The bag according to the invention can be manufactured in one piece from an essentially rectangular web of material, in particular a plastic film, by simple folding. Only two side edges and a bag opening need to be sealed. The same method is preferably used for all seals, the bag opening being provided with a weaker seal than the side edges. The latter can preferably be achieved in that the sealing of the side edges is wider.
In einer bevorzugten Ausführungsform weist die Versiegelung der Beutelöffnung eine Aufreisshilfe auf, welche das erst¬ malige Aufreissen des Beutels erleichtert. Der erfindungsgemässe Beutel eignet sich insbesondere für kleine Mengen Schüttware, das heisst für Beutel im Taschenformat .In a preferred embodiment, the sealing of the bag opening, a tear strip on which facilitates only ¬ times breaking the bag. The bag according to the invention is particularly suitable for small quantities of bulk goods, that is to say for bags in pocket size.
In den Zeichnungen sind Ausführungsbeispiele des Erfindungsgegenstandes dargestellt, welche in der nachfolgenden Beschreibung erläutert werden. Es zeigen:Exemplary embodiments of the subject matter of the invention are illustrated in the drawings and are explained in the description below. Show it:
Figur la eine Ansicht eines erfindungsgemässen Beutels von vorne im offenen Zustand; Figur lb eine perspektivische Ansicht des Beutels gemassFigure la is a view of a bag according to the invention from the front in the open state; Figure lb a perspective view of the bag measured
Figur la während der Herstellung;Figure la during manufacture;
Figur 2 der Beutel gemass Figur la im geschlossenem Zustand;Figure 2 shows the bag according to Figure la in the closed state;
Figur 3 eine zweite Ausführungsform des erfindungsgemässen Beutels undFigure 3 shows a second embodiment of the bag according to the invention and
Figur 4 eine dritte Ausführungsform des erfindungsgemässen Beutels .Figure 4 shows a third embodiment of the bag according to the invention.
In den Figuren la,b und 2 ist eine erste Ausführungsform des erfindungsgemässen Beutels dargestellt. Er ist aus einem für das aufzunehmende Schüttgut geeigneten Material gefertigt. Vorzugsweise werden Folien aus Kunststoff-Verbund eingesetzt, wie beispielsweise Polypropylen coextrudiert/ Polyäthylen peel, Polypropylen coextrudiert/ Polypropylen coextrudiert, Polypropylen orientiert/ Polypropylen coextrudiert, Polyamid orientiert/ Polyäthylen peel, Polyamid orientiert/ Polypropylen coextrudiert. Derartige Kunststoffe lassen sich durch einfache Wärmebehandlung mit untrennbaren und losbaren Schweiss-Siegelungen versehen.Figures la, b and 2 show a first embodiment of the bag according to the invention. It is made of a material suitable for the bulk material to be picked up. Plastic composite films are preferably used, such as polypropylene co-extruded / polyethylene peel, polypropylene co-extruded / polypropylene co-extruded, polypropylene oriented / polypropylene co-extruded, polyamide oriented / polyethylene peel, polyamide oriented / polypropylene co-extruded. Such plastics can be provided with inseparable and detachable sweat seals by simple heat treatment.
Der Beutel weist eine vordere Beutelwand 1 und eine hintere Beutelwand 2 auf, wobei die hintere Beutelwand 2 die vordere um einen Verschlusslappen 3 überragt. Der Verschlusslappen 3 ist durch eine Faltlinie 30 von der restlichen hinteren Beutelwand 2 getrennt. Der Beutel ist aus einer rechteckigen Warenbahn gefaltet, wie dies aus Figur lb ersichtlich ist. In diesem Beispiel ist die Warenbahn w-formig gefaltet, so dass zwischen vorderer und hinterer Beutelwand 1,2 eine Bodenfalte 4 gebildet ist. Dadurch entsteht ein sogenannter Stehbeutel. Andere Faltungsarten, beispielsweise u- oder v-formige Faltungen sind ebenfalls möglich.The bag has a front bag wall 1 and a rear bag wall 2, the rear bag wall 2 projecting beyond the front by a closing flap 3. The closing flap 3 is separated from the remaining rear bag wall 2 by a fold line 30. The bag is folded from a rectangular web of material, as can be seen from FIG. 1b. In this example, the web is folded in a w-shape, so that a bottom fold 4 is formed between the front and rear bag wall 1, 2. This creates a so-called standing pouch. Other types of folding, for example U-shaped or V-shaped folding, are also possible.
Die obere Kante der vorderen Beutelwand 1 bildet mit der hinteren Beutelwand 2 eine Beuteloffnung, welche eine Entnahmeoffnung für das Schuttgut bildet und vorzugsweise auch als Emfullof nung für das Schuttgut dient. Der Verschlusslappen 3 lasst sich an der Faltlinie 30 um die obere Kante der vor¬ deren Beutelwand 1 umschlagen und in diese Lage fixieren, wo¬ durch die Beuteloffnung überdeckt ist. Zur losbaren Fixierung des Verschlusslappens 3 ist an der vorderen Beutelwand eine Klebzone 6 vorhanden, an welche der Verschlusslappen 3 angedrückt wird. Je nach Beutelmaterial ist lediglich ein oder beide Verbindungspartner, das heisst Beutelwand und/oder Verschlusslappen, mit einer Klebschicht versehen.The upper edge of the front bag wall 1 forms with the rear bag wall 2 a bag opening, which forms a removal opening for the bulk material and preferably also serves as an opening for the bulk material. The closure flaps 3 initiated at the fold line 30 to the upper edge of the folding wall the bag 1 before ¬ and fix in this position where ¬ is covered by the Beuteloffnung. For detachable fixation of the closure flap 3 there is a on the front bag wall Adhesive zone 6 is present, to which the closing flap 3 is pressed. Depending on the bag material, only one or both connection partners, i.e. the bag wall and / or sealing flaps, are provided with an adhesive layer.
Die Seitenrander 11 der vorderen und hinteren Beutelwand 1,2 sind miteinander untrennbar versiegelt, vorzugsweise ver- schweisst oder verklebt. Die Art der Siegelung hängt vom Beutelmaterial ab sowie deren genauer Verlauf von der Art seiner Faltung abhängt.The side edges 11 of the front and rear bag wall 1, 2 are inseparably sealed to one another, preferably welded or glued. The type of sealing depends on the bag material and its exact course depends on the type of its folding.
Die Beuteloffnung ist mit einer Verschlussnaht 5 versehen, welche gleichzeitig eine Siegelnaht und eine Aufreissnaht bildet, wie weiter unten erläutert wird. Bildet die Beutelöffnung ebenfalls die Einfüllöffnung, so erfolgt die Ver- schweissung nach der Abfüllung des Beutels. In einer anderen Variante lasst sich das Schuttgut auch durch einer der Seitenrander einfüllen. In diesem Fall erfolgt die Versiegelung der Beuteloffnung bereits bei der Produktion des Beutels .The bag opening is provided with a closing seam 5, which simultaneously forms a sealing seam and a tear seam, as will be explained further below. If the bag opening also forms the filling opening, the welding takes place after the bag has been filled. In another variant, the bulk material can also be filled in through one of the side edges. In this case, the opening of the bag is sealed during the production of the bag.
Die Verschlussnaht 5 ist losbar und somit schwacher ausgebildet als die Siegelung der Seitenrander 11. Dies lasst sich dadurch erreichen, dass die Verschlussnaht 5 schmaler ist als diejenige der Seitenrander 11. In diesem Beispiel betragt die Breite der Verschlussnaht 5 mindestens annähernd 2mm und die Breite der Siegelung der Seitenrander 11 ungefähr 6 mm. Die Erstellung derartiger losbaren Siegelungen ist dem Fachmann bekannt und wird deshalb nicht im Detail beschrieben. Bei Verwendung von Verbundmaterialien, insbesondere der obengenannten Kunststoff-Folien, lassen sich die Verbindungspartner so trennen, dass beide nach wie vor eine intakte Fläche bilden .The closing seam 5 can be released and is therefore weaker than the sealing of the side edges 11. This can be achieved in that the closing seam 5 is narrower than that of the side edges 11. In this example, the width of the closing seam 5 is at least approximately 2 mm and the width of the Sealing the side edges 11 approximately 6 mm. The creation of such detachable seals is known to the person skilled in the art is known and is therefore not described in detail. When using composite materials, in particular the above-mentioned plastic films, the connection partners can be separated so that both still form an intact surface.
Die Verschlussnaht 5 verläuft unterhalb der oberen Kante der vorderen Beutelwand 1 und beabstandet zu dieser. Sie verläuft zudem oberhalb der Klebzone 6. Die Siegelung der Seitenränder 11 endet mindestens annähernd auf der Höhe der Verschlussnaht 5. Die vordere Beutelwand 1 bildet somit zwischen Verschlussnaht und oberer Kante eine Aufreisslasche 10, welche gemeinsam mit dem Verschlusslappen 3 ein Greifmittel zum Äufreissen der Verschlussnaht 5 bildet. Der durch die Verschlussnaht 5 geschlossene Beutel lasst sich somit auf einfache Art und Weise öffnen, indem Aufreisslasche 10 in einer Hand und Verschlusslappen 3 in der anderen Hand gehalten und auseinandergezogen werden. Da der Verschlusslappen 3 relativ gross ist und gut in der Hand liegt, genügt eine schmale Auf eisslasche 10 als Gegenstuck. In diesem Beispiel betragt die Höhe der Aufreisslasche 10 5-10 mm.The closing seam 5 runs below the upper edge of the front bag wall 1 and is spaced apart from it. It also runs above the adhesive zone 6. The sealing of the side edges 11 ends at least approximately at the height of the closure seam 5. The front pouch wall 1 thus forms a tear-open flap 10 between the closure seam and the upper edge, which together with the closure flap 3 is a gripping means for tearing open the closure seam 5 forms. The bag closed by the closing seam 5 can thus be opened in a simple manner by holding the pull tab 10 in one hand and closing flap 3 in the other hand and pulling it apart. Since the flap 3 is relatively large and lies well in the hand, a narrow ice flap 10 is sufficient as a counterpart. In this example, the height of the pull tab 10 is 5-10 mm.
Um das erstmalige Oeffnen des Beutels noch mehr zu erleichtern, ist die Verschlussnaht 5 vorzgusweise gebogen, wobei sie sich im mittleren Bereich der oberen Kante der vorderen Beutelwand 1 annähert. Dadurch wird zuerst dieser mittlere Bereich gelost und erst anschliessend die restliche Verschlussnaht 5 gelost. So lasst sich verhindern, dass bei zu hastigem Aufreissen auch die Seitenränder 11 gelöst werden. Vorzugsweise ist auch der Uebergang zwischen Verschlussnaht 5 und Versiegelung der Seitenränder 11 derart, dass die Seitenränder 11 nicht mit aufgerissen werden. Dies lässt sich beispielsweise durch Abschrägung und Verdünnung der Verschlussnaht 5 in diesem Bereich erreichen.In order to make the opening of the bag even easier for the first time, the closing seam 5 is preferably bent, whereby it approaches the upper edge of the front bag wall 1 in the central region. As a result, this middle area is loosened first and only then is the remaining closure seam 5 loosened. So you can prevent that at hastily tearing open the side edges 11. The transition between the closing seam 5 and the sealing of the side edges 11 is also preferably such that the side edges 11 are not torn open. This can be achieved, for example, by chamfering and thinning the closure seam 5 in this area.
In den Figuren 3 und 4 sind zwei weitere Ausführungsformen des erfindungsgemässen Beutels dargestellt. In Figur 3 ist von der reinen rechteckigen Form abgewichen, indem der Verschlusslappen 3 gerundet ausgebildet ist. In beiden Ausführungsbeispielen ist am Verschlusslappen 3 ein Klebelement in Form einer Schnalle 7 angeordnet, durch welche" der Verschlusslappen 3 an der vorderen Beutelwand 1 lösbar fixierbar ist. FIGS. 3 and 4 show two further embodiments of the bag according to the invention. In FIG. 3 there is a deviation from the pure rectangular shape in that the closing flap 3 is rounded. In both exemplary embodiments, an adhesive element in the form of a buckle 7 is arranged on the closure flap 3, by means of which the "closure flap 3 can be detachably fixed to the front bag wall 1.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU34056/99A AU3405699A (en) | 1998-06-11 | 1999-05-06 | Reclosable bag |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1267/98 | 1998-06-11 | ||
| CH126798 | 1998-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999064308A1 true WO1999064308A1 (en) | 1999-12-16 |
Family
ID=4206404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CH1999/000190 Ceased WO1999064308A1 (en) | 1998-06-11 | 1999-05-06 | Reclosable bag |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU3405699A (en) |
| WO (1) | WO1999064308A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20106368U1 (en) * | 2001-04-11 | 2002-08-14 | Bischof und Klein GmbH & Co. KG, 49525 Lengerich | Packaging container made of flexible, weldable material in the form of a sack or bag |
| DE102008048781A1 (en) * | 2008-09-24 | 2010-03-25 | Multivac Sepp Haggenmüller Gmbh & Co. Kg | Package, has flap protruding from product receiving area, and closure unit formed for opening package and located in region of flap, where adhesion of flap is made for resealable adhesion of folded flap on package |
| WO2014164261A1 (en) * | 2013-03-11 | 2014-10-09 | Sonoco Development, Inc. | Mono-web resealable package with tamper-evident tear strip |
| EP2974978A1 (en) | 2014-07-18 | 2016-01-20 | Hanova | Bag-like packaging provided with a permanent closure system forming a flap and a repositionable closure system |
| EP3594135A1 (en) * | 2018-07-09 | 2020-01-15 | Omori Machinery Co., Ltd. | Packaging machine and package |
| US10730678B2 (en) | 2016-05-10 | 2020-08-04 | Sonoco Development, Inc. | Mono-web package with tamper-evident tear strip and resealable flap portion |
| DE202023104536U1 (en) | 2023-08-10 | 2023-08-29 | Dmk Deutsches Milchkontor Gmbh | Food preparation in an improved dosage form |
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|---|---|---|---|---|
| US3447428A (en) * | 1966-02-16 | 1969-06-03 | Reynolds Metals Co | Method for making a pouch of laminated sheet material |
| US3471005A (en) * | 1968-03-18 | 1969-10-07 | Brown & Williamson Tobacco Corp | Pipe tobacco pouch |
| WO1979000590A1 (en) * | 1978-02-06 | 1979-08-23 | Bausch & Lomb | Sterile package |
| EP0024596A1 (en) * | 1979-08-28 | 1981-03-11 | Brdr. Schur International A/S | Process for manufacturing of a bag-package for aromatic goods |
| DE3721675A1 (en) | 1987-07-01 | 1989-01-12 | Alfons Meyer | Coiled bag or pouch made of thermoplastic film material for packaging, for example, tobacco |
| DE3835721A1 (en) | 1988-10-20 | 1990-05-03 | Tscheulin Aluminium | Method for the production of resealable packaging bags (pouches), and packaging bags (pouches) produced accordingly |
| DE3839143A1 (en) | 1988-11-19 | 1990-05-23 | Ebert Folienwerk Gmbh & Co Kg | Bag for sweets and the like |
| CH675711A5 (en) | 1988-05-20 | 1990-10-31 | Polyfilm Ag | Reclosable bag with closure flap - has tearable tongue on opening edge opposite flap |
| EP0537109A2 (en) * | 1991-09-25 | 1993-04-14 | Alusuisse-Lonza Services Ag | Bag package |
-
1999
- 1999-05-06 AU AU34056/99A patent/AU3405699A/en not_active Abandoned
- 1999-05-06 WO PCT/CH1999/000190 patent/WO1999064308A1/en not_active Ceased
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447428A (en) * | 1966-02-16 | 1969-06-03 | Reynolds Metals Co | Method for making a pouch of laminated sheet material |
| US3471005A (en) * | 1968-03-18 | 1969-10-07 | Brown & Williamson Tobacco Corp | Pipe tobacco pouch |
| WO1979000590A1 (en) * | 1978-02-06 | 1979-08-23 | Bausch & Lomb | Sterile package |
| EP0024596A1 (en) * | 1979-08-28 | 1981-03-11 | Brdr. Schur International A/S | Process for manufacturing of a bag-package for aromatic goods |
| DE3721675A1 (en) | 1987-07-01 | 1989-01-12 | Alfons Meyer | Coiled bag or pouch made of thermoplastic film material for packaging, for example, tobacco |
| CH675711A5 (en) | 1988-05-20 | 1990-10-31 | Polyfilm Ag | Reclosable bag with closure flap - has tearable tongue on opening edge opposite flap |
| DE3835721A1 (en) | 1988-10-20 | 1990-05-03 | Tscheulin Aluminium | Method for the production of resealable packaging bags (pouches), and packaging bags (pouches) produced accordingly |
| DE3839143A1 (en) | 1988-11-19 | 1990-05-23 | Ebert Folienwerk Gmbh & Co Kg | Bag for sweets and the like |
| EP0537109A2 (en) * | 1991-09-25 | 1993-04-14 | Alusuisse-Lonza Services Ag | Bag package |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20106368U1 (en) * | 2001-04-11 | 2002-08-14 | Bischof und Klein GmbH & Co. KG, 49525 Lengerich | Packaging container made of flexible, weldable material in the form of a sack or bag |
| DE102008048781A1 (en) * | 2008-09-24 | 2010-03-25 | Multivac Sepp Haggenmüller Gmbh & Co. Kg | Package, has flap protruding from product receiving area, and closure unit formed for opening package and located in region of flap, where adhesion of flap is made for resealable adhesion of folded flap on package |
| WO2014164261A1 (en) * | 2013-03-11 | 2014-10-09 | Sonoco Development, Inc. | Mono-web resealable package with tamper-evident tear strip |
| US8944250B2 (en) | 2013-03-11 | 2015-02-03 | Sonoco Development, Inc. | Mono-web resealable package with tamper-evident tear strip |
| EP2974978A1 (en) | 2014-07-18 | 2016-01-20 | Hanova | Bag-like packaging provided with a permanent closure system forming a flap and a repositionable closure system |
| US10730678B2 (en) | 2016-05-10 | 2020-08-04 | Sonoco Development, Inc. | Mono-web package with tamper-evident tear strip and resealable flap portion |
| EP3594135A1 (en) * | 2018-07-09 | 2020-01-15 | Omori Machinery Co., Ltd. | Packaging machine and package |
| DE202023104536U1 (en) | 2023-08-10 | 2023-08-29 | Dmk Deutsches Milchkontor Gmbh | Food preparation in an improved dosage form |
Also Published As
| Publication number | Publication date |
|---|---|
| AU3405699A (en) | 1999-12-30 |
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