EP2345595B1 - Sac d'aération doté d'un dispositif d'aération - Google Patents

Sac d'aération doté d'un dispositif d'aération 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
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German (de)
English (en)
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EP2345595A1 (fr
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
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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/fr
Application granted granted Critical
Publication of EP2345595B1 publication Critical patent/EP2345595B1/fr
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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.ä. 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.

Landscapes

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

Claims (14)

  1. Valve sac (1) produit de papier avec un fond à croix et des parois cotés (2 et 21), en lequel le fond à croix a éclisses (11 et 12) et des plis de fond (7 et 8) et un dispositif de remplissage en forme de tuyau disposé à un premier pli de sol (7) et additionellement un dispositif de désaération (5), en lequel la surface du dispositif de remplissage (6), indiquant au
    l'extérieur du sac, est pour un part nettement attaché à la surface du dispositif de désaération, indiquant à l'intérieur du sac, de manière qu 'un part de la surface du dispositif de désaération, indiquant à l'intérieur du
    sac, forme la surface intérieure du fond du valve sac dans cette région, dans lequel
    - le dispositif de désaération (5) a une chambre de désaération en forme d'un tuyau entre le dispositif de remplissage et le pli du fond de la valve en face (8) le long du fond, en lequel cette chambre de désaération est fermée sur le coté du dispositif de remplissage;
    - la surface intérieure de la chambre de désaération est presque complètement formée d'une pièce d'air-perméable matériel (23) et en lequel
    - la chambre de desaération est formée dans une manière telle que l' air-perméable matériel (23) est attaché par l'entier du l'ombrasure du fond de la valve, formant les éclisses (11 et 12), par être adhérés ou collés aux éclisses (11 et 12), au dispositif de remplissage (6) et au pli de fond (8), et après le pliage des éclisses (11 et 12), y compris l'air-perméable matériel (23,) forme la chambre de désaération en forme de tuyau.
  2. Valve sac (1) selon la revendication 1, caractérisé en ce qu'après le pliage des éclisses, cettes éclisses sont nettement fixées l'un avec l'autre sur une coté, au-dessus du dispositif de remplissage, avec le dispositif de remplissage, et, le cas échéant, avec la bande du papier située dessous, de l'air-perméable matériel.
  3. Valve sac (1) selon l'une des revendications précédentes, caractérisé en ce que l'air-perméable matériel (23) sur les éclisses (11 et 12), formées par des parois cotés (2 et 21) du sac, laisse une bande non-couverte (9,10) au bord d'une éclisse ou des deux éclisses (11 et 12).
  4. Valve sac (1) selon l'une des revendications précédentes 1 à 2 caractérisé en ce que the air-perméable matériel (23) est plus grand que l'ouverture, formée par les éclisses (11 et 12) et projectant au-dessus le bord d'une éclisse ou des deux éclisses (11 et 12).
  5. Valve sac selon l'une des revendications 1 à 2, caractérisé en ce que l 'air-perméable matériel (23) est affleuré avec le bord d'une éclisse ou des deux éclisses (11 et 12).
  6. Valve sac (1) selon l'une des revendications précédentes, caractérisé en ce que les éclisses (11 et 12), formées des parois cotés (2 et 21) du sac, sont pliées d'une manière qu'elles ont une chevauchement.
  7. Valve sac (1) selon l'une des revendications précédentes 1 to 5, caractérisé en ce que les éclisses (11 et 12), formées par des parois cotés (2 et 21) du sac sont pliées de manière qu'elles ne se chevauchent pas après le plissage and et sont nettement affleurées l'un avec l'autre ou sont arrangées dans un espace libre de l'un et de l'autre .
  8. Valve sac (1) selon l'une des revendications précédentes, caractérisé en ce que les éclisses (11 et 12) ne sont pas liées au pli du fond de la valve (8) par rapport au dispositif de remplissage.
  9. Valve sac (1) selon l'une des revendications précédentes, caractérisé en ce que le fond de la valve comprend une feuille de couverture (24) quelle est placée au-dessus des éclisses (11 et 12).
  10. Valve sac (1) selon la revendication 9, caractérisé en ce que la feuille de couverture (24) sont liées au pli du sol de la valve (8) au dispositif de remplissage (5).
  11. Valve sac (1) selon la revendication 8 à 10, caractérisé en ce que la feuille de couverture (24) est abrégée par rapport au dispositif de remplissage (5).
  12. Valve sac (1) selon l'une des revendications 8 à 11, caractérisé en ce que la feuille de couverture (24) unilatérale ou bilatérale a un pli aux parois cotés (2 et 21) qui forment les éclisses (11 et 12).
  13. Valve sac (1) selon l'une des revendications 8 à 12, caractérisé en ce que la feuille de couverture (24) a un pli longitudinal.
  14. Valve sac (1) selon l'une des revendications 7 à 13, caractérisé en ce que la connexion avec la feuille de couverture (24) dans la region des éclisses intérieures n'est pas perméable par rapport au chevauchage.
EP11150861.0A 2010-01-14 2011-01-13 Sac d'aération doté d'un dispositif d'aération Active EP2345595B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201020000042 DE202010000042U1 (de) 2010-01-14 2010-01-14 Ventilsack mit Entlüftungsvorrichtung

Publications (2)

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

Family

ID=42234914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11150861.0A Active EP2345595B1 (fr) 2010-01-14 2011-01-13 Sac d'aération doté d'un dispositif d'aération

Country Status (3)

Country Link
EP (1) EP2345595B1 (fr)
DE (1) DE202010000042U1 (fr)
PL (1) PL2345595T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013102644U1 (de) 2013-06-19 2013-07-24 Papiersackfabrik Tenax Gmbh & Co. Kg Ventilsack mit Entlüftungsvorrichtungen
DE202016003199U1 (de) * 2016-05-19 2017-08-22 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Ventilsack
DE202017103128U1 (de) * 2017-05-23 2018-08-24 Bischof + Klein Se & Co. Kg Entlüftbarer Ventilsack
CN112572980A (zh) * 2020-12-22 2021-03-30 上海艾录包装股份有限公司 一种全自动上袋的阀口袋
CN112875025B (zh) * 2021-02-26 2025-10-31 上海艾录包装股份有限公司 一种排气的阀口包装袋
DE202021106636U1 (de) 2021-12-06 2021-12-10 Papiersackfabrik Tenax GmbH & Co. Kommanditgesellschaft Papierventilsäcke mit nicht-kontinuierlicher Längsnahtklebung
DE202021106637U1 (de) 2021-12-06 2021-12-10 Papiersackfabrik Tenax GmbH & Co. Kommanditgesellschaft Papierventilsäcke mit nicht-verklebter Sperrschicht

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1761327A1 (de) 1968-05-04 1971-07-22 Hans Lissner Entlueftbarer sackartiger Behaelter und Verfahren zu dessen Herstellung
DE1806333A1 (de) 1968-10-31 1970-05-14 Sachser Papierverarb Sack aus Papier oder Kunststoff insbesondere Ventilsack
NL8101126A (nl) * 1981-03-09 1982-10-01 Wavin Bv Kunststofzak met ontluchting.
JPS5866359A (ja) 1981-09-28 1983-04-20 Fujitsu Ltd 半導体装置の製造方法
EP0367769A1 (fr) 1987-05-11 1990-05-16 Wavin B.V. Sac a clapet ventile
DE4140213A1 (de) 1991-12-06 1993-06-09 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh, 5962 Drolshagen, De Ventilsack mit entlueftungsventil
EP0767105B1 (fr) 1995-10-02 1999-04-14 Korsnäs Wilhelmstal GmbH Papiersackfabriken Sac à valve à fond croisé ventilé
DE202004015551U1 (de) 2004-10-07 2004-12-09 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Papiersack mit Folienüberlappung
DE202005003539U1 (de) 2005-03-04 2006-07-13 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Papiersack
DE202005004750U1 (de) 2005-03-23 2006-07-27 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Ventil für einen Papiersack
DE202007004838U1 (de) 2007-03-27 2007-05-31 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Ventilsack

Also Published As

Publication number Publication date
PL2345595T3 (pl) 2016-12-30
DE202010000042U1 (de) 2010-06-02
EP2345595A1 (fr) 2011-07-20

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