EP2684813B1 - Ventilsack mit Entlüftungsvorrichtungen - Google Patents

Ventilsack mit Entlüftungsvorrichtungen Download PDF

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Publication number
EP2684813B1
EP2684813B1 EP13187963.7A EP13187963A EP2684813B1 EP 2684813 B1 EP2684813 B1 EP 2684813B1 EP 13187963 A EP13187963 A EP 13187963A EP 2684813 B1 EP2684813 B1 EP 2684813B1
Authority
EP
European Patent Office
Prior art keywords
valve
bag
type
valve bag
filling
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
EP13187963.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2684813A2 (de
EP2684813A3 (de
Inventor
Michael Bendt
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
Priority to PL13187963T priority Critical patent/PL2684813T3/pl
Publication of EP2684813A2 publication Critical patent/EP2684813A2/de
Publication of EP2684813A3 publication Critical patent/EP2684813A3/de
Application granted granted Critical
Publication of EP2684813B1 publication Critical patent/EP2684813B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/01—Ventilation or drainage of bags
    • 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

Definitions

  • the present invention relates to a valve bag with two different venting devices.
  • a valve bag is known in which a ventilation system made of air-permeable paper (HD paper) is provided, 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.
  • valve bag in which a filter sheet is integrated in the valve bottom.
  • a micro needling is used for good air permeability of the material from the filter sheet.
  • 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 0 761 05 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 1806333 A1 relates to a bag with an air outlet opening, in which under the bottom flaps an air-permeable hose is incorporated, wherein at least one end passes through the Bodenverklebung.
  • 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.
  • the EP 0291128 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 with a tubular venting device opposite the filling device.
  • a valve bag is described with a vent valve, which is closed by a incorporated in a corner fold filter material blank. In this case, this vent valve is not in that corner fold in which the filler neck is located.
  • Other Ventisburge are out DE202010000042U and DE9101210U known.
  • the present invention has now taken on the task of overcoming the disadvantages resulting from the prior art.
  • the valve bag should be vented so that the filling runs smoothly, ie without dust, bag bursting and with optimal filling times and a corresponding product protection of the filled bag and a high filling accuracy is guaranteed. To ensure optimal filling times, fast ventilation is of particular importance.
  • the valve bag according to the invention is a cross-bottom bag made of paper.
  • the filling device comprises a thermo-valve. It is a valve, which is coated with plastic, so that after filling the paper bag, this can be thermally sealed.
  • the filling device comprises a thermo-outer valve, that is, this protrudes outward with respect to the ground impact and / or the tabs.
  • the ventilation device (A) 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.
  • Essential for the venting device of the type (A) is the tubular construction, which is closed at the end at which it is connected to the filling device, and at the other end, to the outside of the bag, is open. Through the area of the deaeration chamber of the type (A) forms the bag bottom, the air or gas escapes from the bag interior first in the chamber and then through the opening into the surrounding atmosphere.
  • the venting device of the type (B) in the form of a bag open to the bag interior, which is arranged between the bottom fitting and the two tabs.
  • the venting device of the type (B) is connected to the bottom fitting and the tabs, preferably glued.
  • the venting device of type (B) (B) is formed entirely or almost entirely from a rectangular, air and / or gas permeable material, referred to as a slip or filter, which merely ensures the passage of air or other similar gaseous substances.
  • a slip or filter which merely ensures the passage of air or other similar gaseous substances.
  • This piece of paper is folded parallel to a side edge, preferably in the middle. But also an asymmetric folding is possible. The two sides bordering the fold are closed at the edges perpendicular to the fold, preferably glued together, so that a pocket with three closed edges is formed, the fourth side being an opening parallel to the fold.
  • the breather of the type (B) forms a bag.
  • the opening may extend over the entire length of the edges of the paper or only over a partial region, preferably in the middle.
  • the edge regions are then closed, preferably glued together.
  • the upper and lower side of the bag is now connected to bottom fitting and tabs, preferably glued.
  • the ventilation device of the type (B) is arranged so that the opening facing the interior of the bag, or is located in the bag interior. It should also be noted that the edge of the upper and lower outer surfaces of the ventilation device of the type (B) are completely connected to the bag elements, preferably glued. So the bulk material can not escape. Along the fold there is thus a non-bonded area through which the air can escape from the bag interior and thus serves as a filter.
  • Essential for the venting device of the type (B) is the pocket-shaped configuration, which has an opening to the bag interior and is closed to the outside of the bag. Through the opening, the air or gas escapes from the interior of the bag first into the pocket of the venting device of type (B) and then via the region of the air and / or gas-permeable material not connected to other elements of the valve bag (corresponding to a pocket bottom). in the surrounding atmosphere.
  • the filling device and the venting device of the type (B) are arranged one above the other, preferably the venting device of the type (B) is arranged between the filling device and the bottom flap.
  • the edge of the pointing into the bag interior surface of the filling device with a surface of the venting device of the type (B) is connected, preferably glued. That is, the edge of the venting device of the type (B) is connected here with the filling device instead of the tabs.
  • the other surface of the venting device of the type (B) is connected to the bottom fitting, preferably glued.
  • venting devices of the type (A) and (B) are arranged one above the other, preferably venting device of the type (B) is arranged between venting device of the type (A) and the bag interior or ground impact.
  • venting device of the type (B) is arranged in a corner fold, which is located at the bag end, which has no filling device.
  • the valve bag according to the invention comprises at least two venting devices of the type (B). A venting device (B) is located then in the corner fold in which the filler is to be found and another breather of the type (B) for example in the corner fold with the venting device of type (A) or at the opposite end. Also possible are three or four venting devices of type (B).
  • the folded sheet of the venting device of type (B) is folded at the side edges perpendicular to the first fold, corresponding to the tabs of the valve bag.
  • This second folding can also be done around the filling device or the valve or the ventilation device of the type (A).
  • the areas, at least the edges of these subregions of the booklet, are joined together, preferably glued, to one another and to the filling device or the valve or the venting device of the type (A) and the tabs.
  • filling device and venting device of the type (B) are arranged in the same corner fold, the valve bag having no venting device of the type (A). Again, other venting devices of the type (B) are possible.
  • 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.
  • perpendicular to the lugs alignment above the bottom of the valve, ie between bottom impact and valve edge the dimensions of the air and / or gas-permeable material according to the width of the flaps, namely up to the bottom incisions, so that an escape of the filling material not is possible.
  • the slip of air and / or gas permeable material is positively connected with the side facing the outside of the bag filling device on the other side with the bottom impact.
  • these are on the one side, above the filling device, with the filling device and optionally with the underlying slip of the air and / or gas-permeable material, and optionally in the region of the overlap, firmly bonded together, preferably glued or glued ,
  • the folded parts of the air-permeable Materials are optionally firmly connected together 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.
  • the valve bottom over the tabs can also be provided with an additional cover sheet.
  • 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.
  • 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. Furthermore, the cover sheet may have a longitudinal impact.
  • 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.
  • 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.
  • valve bag lies on its longitudinal seam so that it is located in the right-hand sack half, as seen from above, the filling device and the venting device can be inserted at the top or bottom and left or right be.
  • the bags according to the invention are used for bulk material, preferably fine-grained bulk material such as foodstuffs, animal feed, gypsum, cement, granules, Fertilizers, chemical raw materials, etc., which are granulated, granulated, powdered or chunky as packaged goods.
  • bulk material preferably fine-grained bulk material such as foodstuffs, animal feed, gypsum, cement, granules, Fertilizers, chemical raw materials, 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 covers only a part of the top surface 3 of the valve sack 1. That the filling device ends at the edge. Subsequent thereto and connected to the one end of the filling device, as well as to the edge of the bottom cover 7, 8 and the tabs 11, 12, the venting device 5 is located.
  • the venting device 5 is formed in the form of an air chamber and consists of luft fashionmayem 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. That is, the air-permeable material is with its side edges 14 and 15 fixed 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 in parts to the side edges of the tabs 11 and 12 at a distance 10 as defined above, continuously fixed 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 '. Side edge 19 of the air-permeable material and 18 of the filler overlap.
  • 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 are in their edge regions with the side edges 16 and 17th preferably overlap in the middle of the top surface during folding and thus form the overlap 13.
  • the sheet for the venting device of type - (B) 27 is folded along the line 28 parallel to the edges 29 and 30. In the case of a symmetrical folding so the edges 29 and 30 are superimposed. Perpendicular to the edges 31 and 32 and 33 and 34 are superimposed. These edges 31 and 32 and 33 and 34 are connected to each other, preferably glued. Thus, a pocket is formed which is closed on three sides and has an opening 35 opposite the fold 28.
  • venting device of the type (B) in the region of the corner impact edge 29 is connected to the bottom of the bag on the outer side of the bag and edge 30, also on the outer side of the bag, connected to the tabs, preferably glued.
  • the folded along the fold 28 pieces of paper are folded perpendicular thereto along the lines 36 and 37.
  • the distance between the folds 36 and 37 corresponds to the width of the floor impact.
  • the connection of the two surfaces takes place.
  • the opening 35 is thus between the two folds 36 and 37, which thus constitute the side edges of the bag.
  • the folded surfaces between the fold 36 and the edges 31 and 32 and between fold 37 and edges 33 and 34 are connected to the tabs.
  • the folding 36 and 37 takes place at the edge of the edges of the filling opening 4, or the filling device.
  • 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)
EP13187963.7A 2013-06-19 2013-10-09 Ventilsack mit Entlüftungsvorrichtungen Active EP2684813B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13187963T PL2684813T3 (pl) 2013-06-19 2013-10-09 Worek wentylowy z urządzeniami odpowietrzającymi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202013102644U DE202013102644U1 (de) 2013-06-19 2013-06-19 Ventilsack mit Entlüftungsvorrichtungen

Publications (3)

Publication Number Publication Date
EP2684813A2 EP2684813A2 (de) 2014-01-15
EP2684813A3 EP2684813A3 (de) 2015-07-29
EP2684813B1 true EP2684813B1 (de) 2018-05-09

Family

ID=49029967

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13187963.7A Active EP2684813B1 (de) 2013-06-19 2013-10-09 Ventilsack mit Entlüftungsvorrichtungen
EP13188353.0A Active EP2684814B1 (de) 2013-06-19 2013-10-11 Ventilsack mit Entlüftungstasche

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP13188353.0A Active EP2684814B1 (de) 2013-06-19 2013-10-11 Ventilsack mit Entlüftungstasche

Country Status (3)

Country Link
EP (2) EP2684813B1 (pl)
DE (2) DE202013102644U1 (pl)
PL (2) PL2684813T3 (pl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014100593U1 (de) * 2014-02-11 2014-06-10 Papiersackfabrik Tenax Gmbh & Co. Kg Kreuzbodensack mit Tragegriff, Innenriegel und Aufreißstreifen
DE102015001206A1 (de) * 2015-01-29 2016-08-04 Mondi Ag Behälter aus Papier, insbesondere Papiersack

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
AU1718188A (en) 1987-05-11 1988-12-06 Wavin B.V. Valve bag with venting means
DE9101210U1 (de) * 1991-02-02 1991-04-25 Bischof Und Klein Gmbh & Co, 4540 Lengerich Kreuz- oder Klotzbodenventilsack
DE4140213A1 (de) 1991-12-06 1993-06-09 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh, 5962 Drolshagen, De Ventilsack mit entlueftungsventil
SE509957C2 (sv) * 1994-10-10 1999-03-29 Assidomaen Scandisack Asa Förfarande för fyllning av en ventilsäck samt ventilsäck
DE59601648D1 (de) 1995-10-02 1999-05-20 Korsnaes Wilhelmstal Gmbh Papi Entlüftbarer Kreuzboden-Ventilsack
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
DE202010000042U1 (de) * 2010-01-14 2010-06-02 Papiersackfabrik Tenax Gmbh & Co. Kg Ventilsack mit Entlüftungsvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2684814B1 (de) 2019-05-01
PL2684813T3 (pl) 2018-11-30
PL2684814T3 (pl) 2019-12-31
DE202013102644U1 (de) 2013-07-24
EP2684814A2 (de) 2014-01-15
EP2684813A2 (de) 2014-01-15
DE202013104610U1 (de) 2013-12-06
EP2684813A3 (de) 2015-07-29
EP2684814A3 (de) 2015-07-29

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