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EP2345595B1 - Valve sack with ventilation device - Google Patents

Valve sack with ventilation device Download PDF

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Publication number
EP2345595B1
EP2345595B1 EP11150861.0A EP11150861A EP2345595B1 EP 2345595 B1 EP2345595 B1 EP 2345595B1 EP 11150861 A EP11150861 A EP 11150861A EP 2345595 B1 EP2345595 B1 EP 2345595B1
Authority
EP
European Patent Office
Prior art keywords
bag
valve
flaps
air
filling device
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.)
Active
Application number
EP11150861.0A
Other languages
German (de)
French (fr)
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EP2345595A1 (en
Inventor
Oliver Haverkamp
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.)
Papiersackfabrik Tenax GmbH and Co KG
Original Assignee
Papiersackfabrik Tenax 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 Papiersackfabrik Tenax GmbH and Co KG filed Critical Papiersackfabrik Tenax GmbH and Co KG
Publication of EP2345595A1 publication Critical patent/EP2345595A1/en
Application granted granted Critical
Publication of EP2345595B1 publication Critical patent/EP2345595B1/en
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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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/14—Valve bags, i.e. with valves for filling
    • B65D31/142—Valve bags, i.e. with valves for filling the filling port being formed by folding a flap connected to a side, e.g. block bottoms
    • 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
    • B65D2205/00—Venting means

Definitions

  • the present invention relates to a valve bag with a special new venting device.
  • the filling valve may consist of air-permeable filter material.
  • a paper bag for fine-grained bulk material with a cross-bottom and with a bottom opposite the upper part in which a valve tube is arranged for filling the paper bag known.
  • the paper bag consists of an inner layer of paper and outer layer of paper or a paper composite. Between both, there is a barrier layer with two edges substantially parallel to each other and running from the bottom to the top, with one free edge overlapping the other edge secured by a glue line.
  • thermo valve is additionally provided, which is intended to eliminate the Aufsteckschwiermaschineen in automatic filling and is achieved by attaching a groove on the lower side of the thermo valve.
  • a paper bag with film overlap which contains a valve tube for filling the paper bag, wherein the paper bag is formed from an inner and an outer layer of paper, between which lies at least one plastic film.
  • the plastic films consist of two layers that overlap each other. Due to this overlap, the venting of the bags should improve by 100% compared to a simple film overlap.
  • a valve bag is known in which a venting system is provided, which only the passage of air o.รค. Substances allowed.
  • This system is made of air-permeable paper (HD paper), which prevents the passage of the product.
  • HD paper air-permeable paper
  • This is placed on the not yet finally folded soil and glued to it.
  • the size of the billet is chosen so that it does not touch the hose valve on the one hand and on the other hand protrudes beyond the material of the soil and can then be folded over in the direction of the side edge. This creates a bag that is open to the side edge. Then the crossbore is glued.
  • a ventilation system is still used in the soil, which allows due to its air permeability during filling the leakage of air.
  • the device according to the DE 20 2007 004 838 U1 in turn has the disadvantage that the valve sheet is exposed to the outside and here there is a risk of damage.
  • a valve bag in which a filter sheet is integrated in the valve bottom.
  • the filter sheet is not completely attached, but only on the two narrow sides of its rectangular shape. At the intermediate longitudinal edges, it is arranged as free of connection as possible, or secured for securing only a few adhesive dots. It is significant that the folded-over side flaps are arranged at a free distance. This results in an exposed middle section of the filter sheet. For good air permeability of the material from the filter sheet a micro needling is used.
  • the conclusion of the valve bag forms a louvered cover sheet.
  • the rectangular top sheet is glued with interruptions only in its edge region on the two unfolded side flaps and the valve body and the corner impact.
  • the valve bag according to the EP 0 767 105 B1 has the disadvantage that moisture can penetrate through the louvered cover sheet and the perforated filter sheet. Furthermore, the exposed center portion of the filter sheet is at risk, especially there may be damage during storage and transport of the bags.
  • the DE 1 806 333 A1 relates to a bag with an air outlet opening, in which under the bottom flaps an air-permeable hose is incorporated, at least one of which passes through one end of the Bodenverklebung.
  • the EP 0 291 128 A1 relates to a valve bag made of plastic, in which one side of the valve, which points to the interior of the bag consists of an air-permeable filter material and allows venting.
  • valve bag should be vented so that the filling trouble-free, i. runs without dust, Sackplatzer and optimal filling times and a corresponding product protection of the filled bag is guaranteed.
  • valve bag (1) made of paper with cross bottom and side walls (2 and 21), wherein the cross bottom flaps (11 and 12) and bottom impacts (7 and 8) and a tubular formed at a first bottom impact (7)
  • Filler and in addition a venting device (5) wherein the bag exterior facing surface of the filling device (6) is partially positively connected to the bag interior facing surface of the venting device, so that a part of the bag interior facing surface of the venting device, the inner bottom surface of the valve bag in this area forms;
  • the venting device (5) has a tubular venting chamber between the filling device and the opposite one Form valve bottom (8) along the bottom, said venting chamber is closed on the side of the filling device; the inner surface of the venting chamber is formed almost entirely by a piece of air-permeable material (23) and the venting chamber is formed by means of the air-permeable material (23) over the entire opening of the valve bottom forming the tabs (11 and 12) gluing or gluing with the tabs (11 and 12
  • the venting device is designed as a tubular venting chamber.
  • the inner surface of the breather chamber is completely or almost completely formed by a piece of air-permeable material, which is preferably referred to as a slip, which ensures only the passage of air or other similar gaseous substances.
  • the air-permeable material is attached over the entire opening of the valve bottom, in particular glued, so that escape of the filler is not possible.
  • the air-permeable material preferably has a rectangular shape and is on the side flaps (tabs) of the bag, preferably symmetrically mounted, in particular glued.
  • the size of the slip of air-permeable material depends on the size of the tabs.
  • the invention depends on the size of the air-permeable material after the opening which form the tabs, so that along this tab from unpermitted by the air-permeable material strip from 0.1 to 5.0 cm, preferably 0.2 to 2.5 cm; 0.2 to 2.0 cm; 0.5 to 1.5 cm; more preferably 1.0 cm remains.
  • the tabs are then folded and joined together so as to have an overlap, the inner surface of the venting chamber being formed almost entirely by a slip of air permeable material except for an air-permeable non-covered strip described above. This uncovered by the air-permeable material strip is the free edge of a tab.
  • the overlap of the tabs in this embodiment also has an effect on the size of the tab, in particular on the width of the strip, not covered by the air-permeable material, of the second, outer tab. Accordingly, this strip must not be so wide that it is part of the inner surface of the venting chamber. Furthermore, in one embodiment of the invention, the label on the outer flap after folding the inner flap also overlap.
  • the air-permeable material is larger than the opening formed by the tabs and protrudes beyond the edge of one or both tabs. After folding over and overlapping the tabs here is the inner surface of the breather chamber completely formed by the slip of air-permeable material.
  • the slip of air-permeable material closes with the edge of one or both tabs.
  • the slip of air-permeable material is positively connected with the side facing the bag exterior surface of the filling device on the other side with the bottom impact.
  • the folds After the folds have been folded, they are firmly joined together, preferably glued or glued, on one side, above the filling device, with the filling device and optionally with the underlying slip of the air-permeable material, and possibly in the region of the overlap.
  • the folded parts of the air-permeable material are optionally firmly connected to one another at the edge of the filling device, preferably glued or glued.
  • the opposite side remains open, so that the venting chamber according to the invention is formed. The valve floor mixing against the valve is thus not connected to the tabs.
  • valve bottom over the tabs can also be provided with an additional cover sheet.
  • connection is made, preferably bonding to the cover sheet in the region of the inner flap with respect to the overlap, preferably not continuously, in order to allow the air outlet via these adhesive-free areas.
  • an adhesion to the overlapping areas of the tabs is not required, but can take place. If the tabs do not overlap, the non-continuous connection is on any side.
  • the cover sheet is also firmly connected, preferably glued to the side facing the bag exterior surface of the filling and bag wall. This also causes a safe lifting of the bag bottom for automated opening of the valve for the filler neck.
  • the opposite side of the cover sheet is not connected to the bag. As a result, the vent chamber remains open and the air outlet is not hindered. On this page, the cover page can be shortened compared to the opposite side, so not symmetrical to the bag center.
  • the cover sheet has on one or both sides an envelope on the side walls which form the tabs.
  • cover sheet may have a longitudinal impact.
  • valve bag preferably paper bag
  • inventive design of the valve bag preferably paper bag has the advantage that optimal ventilation is ensured. Because only air or other, similar gaseous substances can pass through the air-permeable material.
  • the filter paper is protected by the airtight layer above it. Damage when handling the paper bag are thus largely prevented.
  • the arrangement of the ventilation device directly in the region of the filling hose has the advantage that an optimized ventilation is ensured, even in airtight bags. A filling of the paper bag is thus considerably easier.
  • adhesives for the bonding of the outwardly facing surface of the venting device conventional adhesives are used, for example, glue, starch adhesive, dispersion adhesive, etc.
  • the paper bag according to the invention contains a barrier layer.
  • This barrier layer is a foil or a coated material.
  • the film may consist of one or two or more webs extending parallel to each other from the top to the bottom of the bag.
  • One edge of a web can be attached to the inner or outer layer of paper, while each free edge can overlap a fixed edge.
  • the film may also be glued along the longitudinal seam, whereby the bag would be hermetically sealed.
  • the valve bag lies on its longitudinal seam so that it is located in the right half of the bag as seen from above
  • the filling device and the ventilation device be inserted at the top or bottom and left or right.
  • the bags according to the invention are used for bulk goods, preferably fine-grained bulk material such as food, animal feed, gypsum, cement, granules, fertilizers, chemical precursors, etc., which are granulated, granulated, powdered or broken up as packaged goods.
  • fine-grained bulk material such as food, animal feed, gypsum, cement, granules, fertilizers, chemical precursors, etc.
  • the tubular filling device According to the filling with the bulk material via the tubular filling device with opening 4.
  • the filling device projects on the one hand into the bag interior. On the other side with the filling opening 4, it can project beyond the edge of the bag, but preferably it closes off with the edge of the bag. Through this the bulk material enters the valve bag 1. As a result of the bulk process creates a bag with rectangular shaped wall parts 2 and 21st
  • the top surface is composed of the filling device with the filling opening 4 and the venting device 5 together.
  • the tubular filling device with filling opening 4 is designed such that it only covers part of the top surface 3 of the filling device 4 Valve sacks 1 covered. This means that the filling device ends at the edge. Following this and connected to the one end of the filling device, and connected to the edge of the bottom flap 7, 8 and the tabs 11, 12, there is the ventilation device. 5
  • the venting device 5 is formed in the form of an air chamber and consists of air-permeable material 23, preferably a filter paper 23. This extends to the side edges 16 and 17 of the tabs 11 and 12 of the valve bag 1. D.h. the air-permeable material is fixed with its side edges 14 and 15 at a distance 9 as defined above to the tabs 11 and 12 fixed and continuous 22. The perpendicular side edges 19 and 20 of the air-permeable material are fixed in parts to the side edges of the flaps 11 and 12 at a distance 10 as defined above, continuously 22 'which are perpendicular to the side edges 16 and 17 of the flaps 11 and 12 and to the bottom impact 8 and the filling device 22 '.
  • the two tabs 11 and 12 and the bottom impacts are formed from the walls 2 of the bag.
  • the size of the two tabs 11 and 12 is designed such that they overlap in the edge regions with the side edges 16 and 17 in the folding preferably centrally of the top surface and thus form the overlap 13.
  • the tabs 11 and 12 can also be provided with an additional cover sheet 24. This is in particular at the edge with all underlying parts connected with the exception of a longitudinal side 25, in which only a selective fixation takes place and a transverse side 26, in which no fixing takes place.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Description

Die vorliegende Erfindung betrifft einen Ventilsack mit einer speziellen neuen Entlรผftungsvorrichtung.The present invention relates to a valve bag with a special new venting device.

Aus der DE-A-41 402 13 ist bekannt, neben einem Fรผllventil im Bereich des einen Eckeinschlags und ein Entlรผftungsventil im gegenรผberliegenden Eckeinschlag des Kreuzbodens zu verwenden. Doch reicht diese Wirkung zur Entlรผftung der Ventilsรคcke nicht aus.From the DE-A-41 402 13 It is known to use in addition to a filling valve in the region of a corner impact and a vent valve in the opposite corner of the crossbeam. But this effect is not sufficient for venting the valve bags.

Aus der DE-A-17 613 27 ist die Verwendung eines Bodens mit einem Filterwerkstoff bekannt, der durch eine rechteckfรถrmige SchweiรŸung sowohl mit den Eckeinschlรคgen und der Sackwandung verbunden ist. Die gegeneinander weisenden Lรคngskanten der beiden umgefalteten Seitenklappen werden รผber eine Verbindungsnaht miteinander vereinigt, so dass die Luft oberhalb der Eckeinschlรคge entweichen kann. In einer weiteren Ausfรผhrung kann das Einfรผllventil aus luftdurchlรคssigem Filterwerkstoff bestehen.From the DE-A-17 613 27 is the use of a bottom with a filter material is known, which is connected by a rectangular weld with both the Eckeinschlรคgen and the bag wall. The mutually facing longitudinal edges of the two folded side flaps are joined together via a connecting seam, so that the air can escape above the corner impacts. In a further embodiment, the filling valve may consist of air-permeable filter material.

Aus der WO 2006/092335 ist ein Papiersack fรผr feinkรถrniges Schรผttgut, mit einem Kreuzboden und mit einem dem Boden gegenรผberliegenden Oberteil in dem ein Ventilschlauch zum Befรผllen des Papiersacks angeordnet ist, bekannt. Der Papiersack besteht aus einer Innenlage aus Papier und AuรŸenlage aus Papier oder einem Papierverbund. Zwischen beiden ist eine Sperrschicht mit zwei im Wesentlichen parallel zueinander und vom Boden zum Oberteil laufenden Rรคndern vorhanden, wobei ein freier Rand den anderen, mittels einer Klebelinie befestigten Rand รผberlappt.From the WO 2006/092335 is a paper bag for fine-grained bulk material, with a cross-bottom and with a bottom opposite the upper part in which a valve tube is arranged for filling the paper bag known. The paper bag consists of an inner layer of paper and outer layer of paper or a paper composite. Between both, there is a barrier layer with two edges substantially parallel to each other and running from the bottom to the top, with one free edge overlapping the other edge secured by a glue line.

Aus der DE 20 2005 004 750 ist eine Weiterentwicklung dieses Papiersacks bekannt. Hierbei ist zusรคtzlich ein Thermoventil vorgesehen, welches dazu dienen soll, die Aufsteckschwierigkeiten bei automatischen Fรผllanlagen zu beseitigen und durch das Anbringen einer Rille an der unteren Seite des Thermoventils erreicht wird.From the DE 20 2005 004 750 is a further development of this paper bag known. Here, a thermo valve is additionally provided, which is intended to eliminate the Aufsteckschwierigkeiten in automatic filling and is achieved by attaching a groove on the lower side of the thermo valve.

Aus der DE 20 2004 015 551 ist ein Papiersack mit Folienรผberlappung bekannt, welcher einen Ventilschlauch zum Befรผllen des Papiersacks enthรคlt, wobei der Papiersack aus einer inneren und einer รคuรŸeren Lage aus Papier gebildet wird, zwischen denen mindestens eine Kunststofffolie liegt. Die Kunststofffolien bestehen aus zwei Lagen, die einander รผberlappen. Durch diese รœberlappung soll sich die Entlรผftung der Sรคcke um 100% gegenรผber einer einfachen Folienรผberlappung verbessern.From the DE 20 2004 015 551 a paper bag with film overlap is known, which contains a valve tube for filling the paper bag, wherein the paper bag is formed from an inner and an outer layer of paper, between which lies at least one plastic film. The plastic films consist of two layers that overlap each other. Due to this overlap, the venting of the bags should improve by 100% compared to a simple film overlap.

Aus der DE 20 2007 004 838 U1 ist ein Ventilsack bekannt, bei dem ein Entlรผftungssystem vorgesehen ist, das lediglich den Durchtritt von Luft o.รค. Stoffen gestattet. Dieses System wird aus luftdurchlรคssigem Papier (HD-Papier) gebildet, das den Durchtritt des Produkts verhindert. Dies wird auf den noch nicht endgรผltig gefalteten Boden aufgelegt und mit diesem verklebt. Die GrรถรŸe des Zettels ist so gewรคhlt, dass er einerseits das Schlauchventil nicht berรผhrt und andererseits รผber das Material des Bodens รผbersteht und aufgrund dessen anschlieรŸend in Richtung auf den Seitenrand umgefaltet werden kann. Dadurch entsteht eine Tasche, die zum Seitenrand hin offen ist. Darauf wird der Kreuzboden verklebt. Auf diese Weise ist neben dem Schlauchventil noch ein Entlรผftungssystem in dem Boden eingesetzt, das aufgrund seiner Luftdurchlรคssigkeit beim Abfรผllen das Austreten von Luft gestattet. Die Vorrichtung gemรครŸ der DE 20 2007 004 838 U1 hat ihrerseits wieder den Nachteil, dass das Ventilblatt ungeschรผtzt zur AuรŸenseite hin zeigt und hier die Gefahr von Beschรคdigungen besteht.From the DE 20 2007 004 838 U1 a valve bag is known in which a venting system is provided, which only the passage of air o.รค. Substances allowed. This system is made of air-permeable paper (HD paper), which prevents the passage of the product. This is placed on the not yet finally folded soil and glued to it. The size of the billet is chosen so that it does not touch the hose valve on the one hand and on the other hand protrudes beyond the material of the soil and can then be folded over in the direction of the side edge. This creates a bag that is open to the side edge. Then the crossbore is glued. In this way, in addition to the hose valve, a ventilation system is still used in the soil, which allows due to its air permeability during filling the leakage of air. The device according to the DE 20 2007 004 838 U1 in turn has the disadvantage that the valve sheet is exposed to the outside and here there is a risk of damage.

Aus der EP 0 767 105 B1 ist ein Ventilsack bekannt, bei dem ein Filterblatt in dem Ventilboden integriert ist. Das Filterblatt ist nicht vollstรคndig befestigt, sondern nur an den beiden Schmalseiten seiner Rechtecksform. An den dazwischen liegenden Lรคngsrรคndern ist es mรถglichst verbindungsfrei angeordnet, beziehungsweise zur Sicherung lediglich mit wenigen Klebepunkten befestigt. Bedeutungsvoll ist, daรŸ die umgefalteten Seitenklappen in einem freien Abstand angeordnet sind. Es ergibt sich ein freiliegender Mittelabschnitt des Filterblattes. Zur guten Luftdurchlรคssigkeit des Materials vom Filterblatt wird eine Mikronadelung verwendet. Den AbschluรŸ des Ventilsacks bildet ein mit Luftschlitzen versehenes Deckblatt. Fรผr den optimierten Luftdurchlass wird das rechtecksfรถrmige Deckblatt mit Unterbrechungen nur in seinem Randbereich an den beiden ungefalteten Seitenklappen und dem Ventilkรถrper sowie dem Eckeinschlag festgeklebt.From the EP 0 767 105 B1 a valve bag is known in which a filter sheet is integrated in the valve bottom. The filter sheet is not completely attached, but only on the two narrow sides of its rectangular shape. At the intermediate longitudinal edges, it is arranged as free of connection as possible, or secured for securing only a few adhesive dots. It is significant that the folded-over side flaps are arranged at a free distance. This results in an exposed middle section of the filter sheet. For good air permeability of the material from the filter sheet a micro needling is used. The conclusion of the valve bag forms a louvered cover sheet. For the optimized air passage, the rectangular top sheet is glued with interruptions only in its edge region on the two unfolded side flaps and the valve body and the corner impact.

Der Ventilsack gemรครŸ der EP 0 767 105 B1 hat den Nachteil, dass durch das mit Luftschlitzen versehene Deckblatt und das perforierte Filterblatt Feuchtigkeit eindringen kann. Ferner ist der freiliegende Mittelabschnitt des Filterblattes gefรคhrdet, vor allem kann es hier zu Beschรคdigungen bei der Lagerung und Transport der Sรคcke kommen. Die DE 1 806 333 A1 betrifft einen Sack mit einer Luftaustrittsรถffnung, bei dem unter die Bodenklappen ein luftdurchlรคssiger Schlauch eingearbeitet ist, wobei zumindest sein eines Ende durch die Bodenverklebung hindurchfรผhrt.The valve bag according to the EP 0 767 105 B1 has the disadvantage that moisture can penetrate through the louvered cover sheet and the perforated filter sheet. Furthermore, the exposed center portion of the filter sheet is at risk, especially there may be damage during storage and transport of the bags. The DE 1 806 333 A1 relates to a bag with an air outlet opening, in which under the bottom flaps an air-permeable hose is incorporated, at least one of which passes through one end of the Bodenverklebung.

In der EP 0 060 599 B1 werden Kunststoffsรคcke mit einem Fรผllventil beschrieben. Auf der gegenรผberliegenden Seite des Fรผllventils ist in einem Ecklappen eine Tasche aus Kunststoff angebracht, die bis an das Sackinnere reicht. Diese Tasche ermรถglicht die Entlรผftung des Kunststoffsacks.In the EP 0 060 599 B1 Plastic bags are described with a filling valve. On the opposite side of the filling valve, a pocket made of plastic is attached in a corner flap, which extends to the inside of the bag. This bag allows the venting of the plastic bag.

Die EP 0 291 128 A1 betrifft einen Ventilsack aus Kunststoff, bei dem die eine Seite des Ventils, die zum Sackinneren zeigt aus einem luftdurchlรคssigen Filtermaterial besteht und die Entlรผftung ermรถglich.The EP 0 291 128 A1 relates to a valve bag made of plastic, in which one side of the valve, which points to the interior of the bag consists of an air-permeable filter material and allows venting.

Die vorliegende Erfindung hat sich nunmehr die Aufgabe gestellt, die sich aus dem Stand der Technik ergebenden Nachteile zu รผberwinden. Des Weiteren soll der Ventilsack so entlรผftet werden, dass die Befรผllung stรถrungsfrei, d.h. ohne Staubentwicklung, Sackplatzer sowie mit optimalen Abfรผllzeiten ablรคuft und ein entsprechender Produktschutz des befรผllten Sackes gewรคhrleistet ist.The present invention has now taken on the task of overcoming the disadvantages resulting from the prior art. Furthermore, the valve bag should be vented so that the filling trouble-free, i. runs without dust, Sackplatzer and optimal filling times and a corresponding product protection of the filled bag is guaranteed.

Diese Aufgabe wird erfindungsgemรครŸ durch einen Ventilsack (1) aus Papier mit Kreuzboden und Seitenwรคnden (2 und 21), wobei der Kreuzboden Laschen (11 und 12) und Bodeneinschlรคge (7 und 8) sowie eine schlauchfรถrmig ausgebildete an einem ersten Bodeneinschlag (7) angeordnete Einfรผllvorrichtung und zusรคtzlich eine Entlรผftungsvorrichtung (5) aufweist, wobei die zum SackรคuรŸeren weisende Flรคche der Einfรผllvorrichtung (6) teilweise mit der zum Sackinneren weisenden Flรคche der Entlรผftungsvorrichtung formschlรผssig verbunden ist, so dass ein Teil der zum Sackinneren weisenden Flรคche der Entlรผftungsvorrichtung die innere Bodenflรคche des Ventilsacks in diesem Bereich bildet;
wobei die Entlรผftungsvorrichtung (5) eine schlauchfรถrmige Entlรผftungskammer zwischen Einfรผllvorrichtung und gegenรผberliegendem Ventilbodeneinschlag (8) entlang des Bodens bildet, wobei diese Entlรผftungskammer auf der Seite der Einfรผllvorrichtung geschlossen ist; die innere Oberflรคche der Entlรผftungskammer wird fast vollstรคndig durch ein Stรผck luftdurchlรคssigen Materials (23) gebildet und wobei die Entlรผftungskammer dadurch gebildet wird, dass das luftdurchlรคssige Material (23) รผber die gesamte ร–ffnung des Ventilbodens, welche die Laschen (11 und 12) bilden, mittels verkleben bzw. verleimen mit den Laschen (11 und 12), der Einfรผllvorrichtung (5) und dem Bodeneinschlag (8) befestigt wird und nach Faltung der Laschen (11 und 12) einschlieรŸlich des luftdurchlรคssigen Materials (23) die schlauchfรถrmige Entlรผftungskammer bildet.This object is achieved by a valve bag (1) made of paper with cross bottom and side walls (2 and 21), wherein the cross bottom flaps (11 and 12) and bottom impacts (7 and 8) and a tubular formed at a first bottom impact (7) Filler and in addition a venting device (5), wherein the bag exterior facing surface of the filling device (6) is partially positively connected to the bag interior facing surface of the venting device, so that a part of the bag interior facing surface of the venting device, the inner bottom surface of the valve bag in this area forms;
wherein the venting device (5) has a tubular venting chamber between the filling device and the opposite one Form valve bottom (8) along the bottom, said venting chamber is closed on the side of the filling device; the inner surface of the venting chamber is formed almost entirely by a piece of air-permeable material (23) and the venting chamber is formed by means of the air-permeable material (23) over the entire opening of the valve bottom forming the tabs (11 and 12) gluing or gluing with the tabs (11 and 12), the filling device (5) and the bottom cover (8) is fixed and after folding the tabs (11 and 12) including the air-permeable material (23) forms the tubular venting chamber.

ErfindungsgemรครŸ wird die Entlรผftungsvorrichtung als schlauchfรถrmige Entlรผftungskammer ausgebildet. Hierbei wird die innere Oberflรคche der Entlรผftungskammer vollstรคndig oder fast vollstรคndig durch ein Stรผck luftdurchlรคssigen Materials gebildet, welches bevorzugt als Zettel bezeichnet wird, das lediglich den Durchtritt von Luft oder anderen, รคhnlichen gasfรถrmigen Stoffen gewรคhrleistet. Ferner wird erfindungsgemรครŸ das luftdurchlรคssige Material รผber die gesamte ร–ffnung des Ventilbodens befestigt, insbesondere verklebt, so dass ein Entweichen des Fรผllstoffes nicht mรถglich ist.According to the invention, the venting device is designed as a tubular venting chamber. Here, the inner surface of the breather chamber is completely or almost completely formed by a piece of air-permeable material, which is preferably referred to as a slip, which ensures only the passage of air or other similar gaseous substances. Further, according to the invention, the air-permeable material is attached over the entire opening of the valve bottom, in particular glued, so that escape of the filler is not possible.

In einer Alternative der Erfindung hat das luftdurchlรคssige Material bevorzugt eine rechteckige Form und wird auf die Seitenklappen (Laschen) des Sackes, bevorzugt symmetrisch, angebracht, insbesondere geklebt. Die GrรถรŸe des Zettels luftdurchlรคssigen Materials richtet sich nach der GrรถรŸe der Laschen.In an alternative of the invention, the air-permeable material preferably has a rectangular shape and is on the side flaps (tabs) of the bag, preferably symmetrically mounted, in particular glued. The size of the slip of air-permeable material depends on the size of the tabs.

In einer Ausfรผhrung der Erfindung richtet sich nach der GrรถรŸe des luftdurchlรคssigen Materials nach der ร–ffnung welche die Laschen bilden, so daรŸ entlang dieser Lasche ein vom luftdurchlรคssigen Material nichtbedeckter Streifen von 0,1 bis 5,0 cm, bevorzugt 0,2 bis 2,5 cm; 0,2 bis 2,0 cm; 0,5 bis 1,5 cm; besonders bevorzugt 1,0 cm bleibt. Die Laschen werden dann so gefaltet und miteinander verbunden, daรŸ sie eine รœberlappung aufweisen, wobei die innere Oberflรคche der Entlรผftungskammer bis auf einen oben beschriebenen vom luftdurchlรคssigen Material nichtbedeckter Streifen fast vollstรคndig durch einen Zettel luftdurchlรคssigen Materials gebildet wird. Dieser vom luftdurchlรคssigen Material nichtbedeckter Streifen ist der freie Rand einer Lasche.In one embodiment of the invention depends on the size of the air-permeable material after the opening which form the tabs, so that along this tab from unpermitted by the air-permeable material strip from 0.1 to 5.0 cm, preferably 0.2 to 2.5 cm; 0.2 to 2.0 cm; 0.5 to 1.5 cm; more preferably 1.0 cm remains. The tabs are then folded and joined together so as to have an overlap, the inner surface of the venting chamber being formed almost entirely by a slip of air permeable material except for an air-permeable non-covered strip described above. This uncovered by the air-permeable material strip is the free edge of a tab.

Die รœberlappung der Laschen wirkt sich in dieser Ausfรผhrung auch auf die GrรถรŸe des Zettels aus, insbesondere auf die Breite des vom luftdurchlรคssigen Material nichtbedeckten Streifens der zweiten, รคuรŸeren Lasche. Dieser Streifen darf demgemรครŸ nicht so breit sein, dass er Teil der inneren Oberflรคche der Entlรผftungskammer ist. Ferner soll in einer Ausfรผhrung der Erfindung der Zettel auf der รคuรŸeren Lasche nach Faltung die innere Lasche ebenfalls รผberlappen.The overlap of the tabs in this embodiment also has an effect on the size of the tab, in particular on the width of the strip, not covered by the air-permeable material, of the second, outer tab. Accordingly, this strip must not be so wide that it is part of the inner surface of the venting chamber. Furthermore, in one embodiment of the invention, the label on the outer flap after folding the inner flap also overlap.

In einer anderen Alternative ist das luftdurchlรคssige Material grรถรŸer als die von den Laschen gebildete ร–ffnung und ragt รผber den Rand einer oder beider Laschen hinaus. Nach Umfalten und รœberlappen der Laschen wird hier die innere Oberflรคche der Entlรผftungskammer vollstรคndig durch den Zettel luftdurchlรคssigen Materials gebildet.In another alternative, the air-permeable material is larger than the opening formed by the tabs and protrudes beyond the edge of one or both tabs. After folding over and overlapping the tabs here is the inner surface of the breather chamber completely formed by the slip of air-permeable material.

In einer weiteren Alternative schlieรŸt der Zettel luftdurchlรคssigen Materials mit dem Rand einer oder beider Laschen ab.In another alternative, the slip of air-permeable material closes with the edge of one or both tabs.

In jeder der oben beschriebenen Varianten ist jeweils eine Ausfรผhrung mรถglich, in der die Laschen nach dem Umfalten nicht รผberlappen. Auch hier sind zwei Varianten mรถglich, nรคmlich dass die bรผndig zueinander abschlieรŸen oder in einem freien Abstand zueinander angeordnet sind.In each of the variants described above, an embodiment is possible in each case in which the tabs do not overlap after folding. Again, two variants are possible, namely that they are flush with each other or arranged at a free distance from each other.

In der anderen, zu den Laschen senkrechten Ausrichtung oberhalb der Ventilbodeneinschlรคge, also zwischen Bodeneinschlag und Ventilkante, richtet sich die AusmaรŸe des luftdurchlรคssigen Materials nach der Breite der Laschen, nรคmlich bis zu den Bodeneinschlรคgen, so dass ein Entweichen des Fรผllguts nicht mรถglich ist.In the other, perpendicular to the lugs alignment above the bottom of the valve, ie between bottom impact and valve edge, the dimensions of the air-permeable material according to the width of the tabs, namely up to the bottom impacts, so that an escape of the contents is not possible.

Auf der einen Seite ist der Zettel luftdurchlรคssigen Materials formschlรผssig mit der zum SackรคuรŸeren weisenden Flรคche der Einfรผllvorrichtung verbunden auf der anderen Seite mit dem Bodeneinschlag.On the one hand, the slip of air-permeable material is positively connected with the side facing the bag exterior surface of the filling device on the other side with the bottom impact.

Nach der Faltung der Laschen werden diese auf der einen Seite, oberhalb der Einfรผllvorrichtung, mit der Einfรผllvorrichtung und gegebenenfalls mit dem darunter liegenden Zettel des luftdurchlรคssigen Materials, und gegebenenfalls im Bereich der รœberlappung, fest miteinander verbunden, bevorzugt verleimt bzw verklebt. Auch die gefalteten Teile des luftdurchlรคssigen Materials werden gegebenenfalls am Rand der Einfรผllvorrichtung fest miteinander verbunden, bevorzugt verleimt bzw verklebt. Die gegenรผber liegende Seite bleibt offen, so dass die erfindungsgemรครŸe Entlรผftungskammer gebildet wird. Der Ventilbodeneischlag gegenรผber dem Ventil wird somit nicht mit den Laschen verbunden.After the folds have been folded, they are firmly joined together, preferably glued or glued, on one side, above the filling device, with the filling device and optionally with the underlying slip of the air-permeable material, and possibly in the region of the overlap. The folded parts of the air-permeable material are optionally firmly connected to one another at the edge of the filling device, preferably glued or glued. The opposite side remains open, so that the venting chamber according to the invention is formed. The valve floor mixing against the valve is thus not connected to the tabs.

ErfindungsgemรครŸ kann der Ventilboden รผber den Laschen auch mit einem zusรคtzlichen Deckblatt versehen werden.According to the invention, the valve bottom over the tabs can also be provided with an additional cover sheet.

In einer Ausfรผhrung erfolgt die Verbindung, bevorzugt Verklebung zum Deckblatt im Bereich des bezรผglich der รœberlappung inneren Lasche, vorzugsweise nicht durchgรคngig, um den Luftaustritt รผber diese klebstoff-freien Bereiche zu ermรถglichen. In diesem Falle ist eine Verklebung an den รผberlappenden Bereichen der Laschen nicht erforderlich, kann aber erfolgen. Falls die Laschen nicht รผberlappen erfolgt die nicht durchgรคngige Verbindung auf einer beliebigen Seite.In one embodiment, the connection is made, preferably bonding to the cover sheet in the region of the inner flap with respect to the overlap, preferably not continuously, in order to allow the air outlet via these adhesive-free areas. In this case, an adhesion to the overlapping areas of the tabs is not required, but can take place. If the tabs do not overlap, the non-continuous connection is on any side.

Das Deckblatt ist ferner fest verbunden, bevorzugt verklebt mit dem zum SackรคuรŸeren weisenden Flรคche der Einfรผllvorrichtung und Sackwand. Auch dies bewirkt ein sicheres Anheben des Sackbodens zum automatisierten ร–ffnen des Ventil fรผr den Einfรผllstutzen.The cover sheet is also firmly connected, preferably glued to the side facing the bag exterior surface of the filling and bag wall. This also causes a safe lifting of the bag bottom for automated opening of the valve for the filler neck.

Die gegenรผber liegende Seite des Deckblatt wird nicht mit dem Sack verbunden. Dadurch bleibt die Entlรผftungskammer offen und der Luftaustritt wird nicht gehindert. Auf dieser Seite kann das Deckblatt verkรผrzt sein im Vergleich zur gegenรผber liegenden Seite, also nicht symmetrisch zur Sackmitte.The opposite side of the cover sheet is not connected to the bag. As a result, the vent chamber remains open and the air outlet is not hindered. On this page, the cover page can be shortened compared to the opposite side, so not symmetrical to the bag center.

In einer weiteren Variante der Erfindung weist das Deckblatt einseitig oder beidseitig einen Umschlag auf die Seitenwรคnde welche die Laschen bilden auf.In a further variant of the invention, the cover sheet has on one or both sides an envelope on the side walls which form the tabs.

Ferner kann das Deckblatt einen Lรคngseinschlag aufweisen.Furthermore, the cover sheet may have a longitudinal impact.

Die erfindungsgemรครŸe Ausgestaltung des Ventilsacks, bevorzugt Papiersacks hat den Vorteil, dass eine optimale Entlรผftung gewรคhrleistet ist. Denn durch das luftdurchlรคssige Material kรถnnen nur Luft oder andere, รคhnliche gasfรถrmige Stoffe hindurch treten. Auf der anderen Seite ist das Filterpapier durch die darรผber angeordnete luftundurchlรคssige feste Schicht geschรผtzt. Beschรคdigungen beim Handhaben des Papiersacks werden damit weitgehend verhindert. Zudem hat die Anordnung der Entlรผftungsvorrichtung unmittelbar im Bereich des Einfรผllschlauchs den Vorteil, dass eine optimierte Entlรผftung gewรคhrleistet ist, auch bei luftdichten Sรคcken. Ein Befรผllen des Papiersacks ist damit erheblich erleichtert.The inventive design of the valve bag, preferably paper bag has the advantage that optimal ventilation is ensured. Because only air or other, similar gaseous substances can pass through the air-permeable material. On the other hand, the filter paper is protected by the airtight layer above it. Damage when handling the paper bag are thus largely prevented. In addition, the arrangement of the ventilation device directly in the region of the filling hose has the advantage that an optimized ventilation is ensured, even in airtight bags. A filling of the paper bag is thus considerably easier.

Fรผr das Verkleben der nach auรŸen weisenden Flรคche der Entlรผftungsvorrichtung werden รผbliche Klebstoffe eingesetzt zum Beispiel Leim, Stรคrke-Kleber, Dispersionskleber usw.For the bonding of the outwardly facing surface of the venting device conventional adhesives are used, for example, glue, starch adhesive, dispersion adhesive, etc.

Als Material fรผr die Papiersรคcke kommen รผbliche Stoffe in Betracht, zum Beispiel Kraftsackpapier.As material for the paper sacks usual materials come into consideration, for example sack kraft paper.

In einer Ausfรผhrung enthรคlt der erfindungsgemรครŸe Papiersack eine Sperrschicht. Diese Sperrschicht ist eine Folie oder ein beschichtetes Material ist.In one embodiment, the paper bag according to the invention contains a barrier layer. This barrier layer is a foil or a coated material.

In einer Ausfรผhrung kann sich zwischen den Doppellagen aus Papier eine Folie befinden. Die Folie kann aus einer oder zwei oder mehreren Bahnen bestehen die parallel zueinander vom Oberteil zum Unterteil des Sacks verlaufen. Jeweils ein Rand einer Bahn kann an die Innen -oder AuรŸenlage aus Papier befestigt sein, wรคhrend jeweils ein freier Rand einen befestigten Rand รผberlappen kann. Die Folie kann entlang der Lรคngsnaht auch verklebt sein, womit der Sack hermetisch abgeschlossen wรคre.In one embodiment, there may be a film between the double layers of paper. The film may consist of one or two or more webs extending parallel to each other from the top to the bottom of the bag. One edge of a web can be attached to the inner or outer layer of paper, while each free edge can overlap a fixed edge. The film may also be glued along the longitudinal seam, whereby the bag would be hermetically sealed.

Ausgehend von der gemรครŸ GemPSI (Gemeinschaft Papiersackindustrie eV) verwendeten Bezeichnung, bei welcher der Ventilsack so auf seiner Lรคngsnaht liegt, daรŸ diese sich von oben gesehen in der rechten Sackhรคlfte befindet, kann erfindungsgemรครŸ die Einfรผllvorrichtung und die Entlรผftungsvorrichtung oben oder unten und links oder rechts eingefรผgt sein.Starting from the name used in accordance with GemPSI (Community Paper Bag Industry eV), in which the valve bag lies on its longitudinal seam so that it is located in the right half of the bag as seen from above According to the invention, the filling device and the ventilation device be inserted at the top or bottom and left or right.

Die erfindungsgemรครŸen Sรคcke werden verwendet fรผr Schรผttgut, bevorzugt feinkรถrniges Schรผttgut wie Lebensmittel, Tierfutter, Gips, Zement, Granulat, Dรผngemittel, chemische Grundstoffe usw. die gekรถrnt, granuliert, pulverfรถrmig oder in Brocken als Packgut anfallen.The bags according to the invention are used for bulk goods, preferably fine-grained bulk material such as food, animal feed, gypsum, cement, granules, fertilizers, chemical precursors, etc., which are granulated, granulated, powdered or broken up as packaged goods.

Im Folgenden wird die Erfindung unter Bezugnahme auf die Figuren nรคher beschrieben.

Figur 1
zeigt den Boden (Deckflรคche ohne Deckblatt) des erfindungsgemรครŸen Sacks mit Einfรผllรถffnung und Entlรผftungsvorrichtung.
Figur 2
zeigt die Fixierung des luftdurchlรคssigen Materials
Figur 3
zeigt den Boden (Deckflรคche mit Deckblatt) des erfindungsgemรครŸen Sacks
In the following the invention will be described in more detail with reference to the figures.
FIG. 1
shows the bottom (top surface without cover sheet) of the bag according to the invention with filling opening and venting device.
FIG. 2
shows the fixation of the air-permeable material
FIG. 3
shows the bottom (top surface with cover sheet) of the bag according to the invention

ErfindungsgemรครŸ erfolgt die Befรผllung mit dem Schรผttgut รผber die schlauchfรถrmige Einfรผllvorrichtung mit ร–ffnung 4. Die Einfรผllvorrichtung ragt einerseits bis in das Sackinnere. Auf der anderen Seite mit der Einfรผllรถffnung 4 kann sie beliebig รผber den Sackrand hinausragen, bevorzugt schlieรŸt sie jedoch mit dem Sackrand ab. รœber diesen gelangt das Schรผttgut in den Ventilsack 1. Infolge des Schรผttvorgangs entsteht ein Sack mit rechtecksfรถrmig ausgestalteten Wandteilen 2 und 21.According to the filling with the bulk material via the tubular filling device with opening 4. The filling device projects on the one hand into the bag interior. On the other side with the filling opening 4, it can project beyond the edge of the bag, but preferably it closes off with the edge of the bag. Through this the bulk material enters the valve bag 1. As a result of the bulk process creates a bag with rectangular shaped wall parts 2 and 21st

Die Deckflรคche setzt sich aus der Einfรผllvorrichtung mit Einfรผllรถffnung 4 und der Entlรผftungsvorrichtung 5 zusammen. Die Einfรผllvorrichtung mit Einfรผllรถffnung 4 besitzt die zum SackรคuรŸeren weisende Flรคche der Einfรผllvorrichtung 6. In dem erfindungsgemรครŸen Beispiel ist die schlauchfรถrmige Einfรผllvorrichtung mit Einfรผllรถffnung 4 derart ausgestaltet, dass sie nur einen Teil der Deckflรคche 3 des Ventilsacks 1 bedeckt. D.h. die Einfรผllvorrichtung endet an der Kante. Im AnschluรŸ daran und mit dem einen Ende der Einfรผllvorrichtung verbunden, sowie mit dem Rand des Bodeneinschlags 7, 8 und den Laschen 11, 12 verbunden, befindet sich die Entlรผftungsvorrichtung 5.The top surface is composed of the filling device with the filling opening 4 and the venting device 5 together. In the example according to the invention, the tubular filling device with filling opening 4 is designed such that it only covers part of the top surface 3 of the filling device 4 Valve sacks 1 covered. This means that the filling device ends at the edge. Following this and connected to the one end of the filling device, and connected to the edge of the bottom flap 7, 8 and the tabs 11, 12, there is the ventilation device. 5

Die Entlรผftungsvorrichtung 5 ist in Form einer Luftkammer ausgebildet und besteht aus luftdurchlรคssigem Material 23, bevorzugt einem Filterpapier 23. Dies erstreckt sich bis zu den Seitenkanten 16 und 17 der Laschen 11 und 12 des Ventilsacks 1. D.h. das luftdurchlรคssige Material ist mit seinen Seitenkanten 14 und 15 in einem Abstand 9 wie oben definiert an die Laschen 11 und 12 fest und durchgรคngig 22 fixiert. Die dazu senkrechten Seitenrรคnder 19 und 20 des luftdurchlรคssigen Materials sind in Teilen an die Seitenrรคnder der Laschen 11 und 12 in Abstand 10 wie oben definiert, durchgรคngig fixiert 22'die senkrecht zu den Seitenkanten 16 und 17 der Laschen 11 und 12 verlaufen sowie an den Bodeneinschlag 8 beziehungsweise die Einfรผllvorrichtung 22'.The venting device 5 is formed in the form of an air chamber and consists of air-permeable material 23, preferably a filter paper 23. This extends to the side edges 16 and 17 of the tabs 11 and 12 of the valve bag 1. D.h. the air-permeable material is fixed with its side edges 14 and 15 at a distance 9 as defined above to the tabs 11 and 12 fixed and continuous 22. The perpendicular side edges 19 and 20 of the air-permeable material are fixed in parts to the side edges of the flaps 11 and 12 at a distance 10 as defined above, continuously 22 'which are perpendicular to the side edges 16 and 17 of the flaps 11 and 12 and to the bottom impact 8 and the filling device 22 '.

Die zwei Laschen 11 und 12 sowie die Bodeneinschlรคge sind gebildet aus den Wรคnden 2 des Sackes. Die GrรถรŸe der beiden Laschen 11 und 12 ist derart gestaltet, dass sie sich in ihren Randbereichen mit den Seitenkanten 16 und 17 bei der Faltung bevorzugt mittig der Deckflรคche รผberlappen und so die รœberlappung 13 bilden.The two tabs 11 and 12 and the bottom impacts are formed from the walls 2 of the bag. The size of the two tabs 11 and 12 is designed such that they overlap in the edge regions with the side edges 16 and 17 in the folding preferably centrally of the top surface and thus form the overlap 13.

Die Laschen 11 und 12 kรถnnen auch mit einem zusรคtzlichen Deckblatt 24 versehen werden. Dieses ist insbesondere am Rand mit allen darunter liegenden teilen verbunden mit Ausnahme einer Lรคngsseite 25, bei der lediglich eine punktuelle Fixierung erfolgt und einer Querseite 26, bei der keine Fixierung erfolgt.The tabs 11 and 12 can also be provided with an additional cover sheet 24. This is in particular at the edge with all underlying parts connected with the exception of a longitudinal side 25, in which only a selective fixation takes place and a transverse side 26, in which no fixing takes place.

Claims (14)

  1. Valve bag (1) made of paper with a cross- bottom and side walls (2 and 21), wherein the cross- bottom has flaps (11 and 12) and bottom folds (7 and 8) and a tube-shaped filling device disposed at a first bottom fold (7) and additionally a venting device (5) wherein the to the exterior bag pointing surface of the filling device (6) is partially positively connected to the to the interior of the bag pointing surface of the venting device, so that a part of the to the interior of the bag pointing surface of the venting device forms the inner bottom surface of the valve bag in this area; wherein
    - the venting device (5) has a tube-shaped venting chamber between the filling device and the opposite valve bottom fold (8) along the bottom, wherein this venting chamber is closed on the side of the filling device;
    - the inner surface of the venting chamber is almost completely formed by a piece of air-permeable material (23) and wherein
    - the deaeration chamber is formed in such a way that the air-permeable material (23) is attached via the entire opening of the valve bottom, forming the flaps (11 and 12), via sticking or glueing to the flaps (11 and 12), the filling device (6) and the bottom fold (8), and after folding of the flaps (11 and 12) including the air-permeable material (23) forms the tube-shaped deaeration chamber.
  2. The valve bag (1) as claimed in claim 1, characterized in that after the folding of the flaps, these are solidly connected with one another on the one side above the filling device, with the filling device and, if appropriate, with the slip of paper, situated there beneath, of the air-permeable material.
  3. The valve bag (1) as claimed in one of the preceding claims, characterized in that the air-permeable material (23) on the flaps (11 and 12), formed by the side walls (2 and 21) of the bag, lets a non-covered strip (9,10) at the edge of one flap or both flaps (11 and 12).
  4. The valve bag (1) as claimed in one of the preceding claims 1 and 2, characterized in that the air-permeable material (23) is larger than the opening formed by the flaps (11 and 12) and is projecting beyond the edge of one flap or both flaps (11 and 12).
  5. The valve bag (1) as claimed in one of the preceding claims 1 to 2, characterized in that the air-permeable material (23) is closed up with the edge of one flap or both flaps (11 and 12).
  6. The valve bag (1) as claimed in one of the preceding claims characterized in that the flaps (11 and 12), formed by the side walls (2 and 21) of the bag, are folded such that they have an overlap.
  7. The valve bag (1) as claimed in one of the preceding claims 1 to 5, characterized in that the flaps (11 and 12), formed by the sidewalls (2 and 21) of the bag, are folded such that they do not overlap after the folding and are flush with each other or are arranged in a free distance from one another.
  8. The valve bag (1) as claimed in one of the preceding claims characterized in that the flaps (11 and 12) are not connected to the valve bottom fold (8) with respect to the filling device.
  9. The valve bag (1) as claimed in one of the preceding claims characterized in that the bottom valve comprises a cover sheet (24) which is placed over the flaps (11 and 12).
  10. The valve bag (1) as claimed in claim 9, characterized in that the cover sheet (24) are connected to the valve bottom fold (8) at the filling device (5).
  11. The valve bag (1) as claimed in claim 8 to 10, characterized in that the cover sheet (24) is shortened with respect to the filling device (5)
  12. The valve bag (1) as claimed in one of claims 8 to 11, characterized in that the cover sheet (24) on one side or on both sides has a fold to the side walls (2 and 21) which form the flaps (11 and 12).
  13. The valve bag (1) as claimed in one of claims 8 to 12, characterized in that the cover sheet (24) has a longitudinal fold.
  14. The valve bag (1) as claimed in one of claims 7 to 13, characterized in that the connection to the cover sheet (24) in the region of the inner flap is not permeable with respect to the overlap.
EP11150861.0A 2010-01-14 2011-01-13 Valve sack with ventilation device Active EP2345595B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201020000042 DE202010000042U1 (en) 2010-01-14 2010-01-14 Valve bag with ventilation device

Publications (2)

Publication Number Publication Date
EP2345595A1 EP2345595A1 (en) 2011-07-20
EP2345595B1 true EP2345595B1 (en) 2016-06-29

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DE (1) DE202010000042U1 (en)
PL (1) PL2345595T3 (en)

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Publication number Priority date Publication date Assignee Title
DE202013102644U1 (en) 2013-06-19 2013-07-24 Papiersackfabrik Tenax Gmbh & Co. Kg Valve bag with ventilation devices
DE202016003199U1 (en) * 2016-05-19 2017-08-22 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh valve bag
DE202017103128U1 (en) * 2017-05-23 2018-08-24 Bischof + Klein Se & Co. Kg Ventable valve bag
CN112572980A (en) * 2020-12-22 2021-03-30 ไธŠๆตท่‰พๅฝ•ๅŒ…่ฃ…่‚กไปฝๆœ‰้™ๅ…ฌๅธ Full-automatic valve bag of going up bag
DE202021106636U1 (en) 2021-12-06 2021-12-10 Papiersackfabrik Tenax GmbH & Co. Kommanditgesellschaft Paper valve sacks with non-continuous longitudinal seam gluing
DE202021106637U1 (en) 2021-12-06 2021-12-10 Papiersackfabrik Tenax GmbH & Co. Kommanditgesellschaft Paper valve sacks with non-taped barrier layer

Family Cites Families (11)

* Cited by examiner, โ€  Cited by third party
Publication number Priority date Publication date Assignee Title
DE1761327A1 (en) 1968-05-04 1971-07-22 Hans Lissner Ventable sack-like container and process for its manufacture
DE1806333A1 (en) 1968-10-31 1970-05-14 Sachser Papierverarb Sacks of paper or plastic, in particular valve sacks
NL8101126A (en) * 1981-03-09 1982-10-01 Wavin Bv PLASTIC BAG WITH BREATHER.
JPS5866359A (en) 1981-09-28 1983-04-20 Fujitsu Ltd Manufacturing method of semiconductor device
EP0291128A1 (en) 1987-05-11 1988-11-17 Wavin B.V. Valve bag with venting means
DE4140213A1 (en) 1991-12-06 1993-06-09 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh, 5962 Drolshagen, De Filler valve for filling sacks - has valve which allows air to flow out but prevents flow of material
EP0767105B1 (en) 1995-10-02 1999-04-14 Korsnรคs Wilhelmstal GmbH Papiersackfabriken Ventable cross-bottom valve-bag
DE202004015551U1 (en) 2004-10-07 2004-12-09 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Paper sack for e.g. cement is made from two layers of paper with layer of plastic sheet between, sheet consisting of two sections whose edges overlap
DE202005003539U1 (en) 2005-03-04 2006-07-13 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh paper bags
DE202005004750U1 (en) 2005-03-23 2006-07-27 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Paper bag valve for filling with loose materials, e.g. cement and the like, is a thermo valve of a folded rectangular sheet with an embossed line over the overlap of the folded sides
DE202007004838U1 (en) 2007-03-27 2007-05-31 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Vented bag for fine-grained bulk material such as cement, plaster, granulate or animal feed, has venting system which allows passage of air or similar gaseous substance

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EP2345595A1 (en) 2011-07-20
PL2345595T3 (en) 2016-12-30
DE202010000042U1 (en) 2010-06-02

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