EP3246265A1 - Sac à valve - Google Patents

Sac à valve Download PDF

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Publication number
EP3246265A1
EP3246265A1 EP17170611.2A EP17170611A EP3246265A1 EP 3246265 A1 EP3246265 A1 EP 3246265A1 EP 17170611 A EP17170611 A EP 17170611A EP 3246265 A1 EP3246265 A1 EP 3246265A1
Authority
EP
European Patent Office
Prior art keywords
valve
bag
venting
insert
interior
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.)
Withdrawn
Application number
EP17170611.2A
Other languages
German (de)
English (en)
Inventor
Andreas Braun
Alexander Diener
Michael Merschmann
Jens Stamm
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.)
Dy Pack Verpackungen Gustav Dyckerhoff GmbH
Original Assignee
Dy Pack Verpackungen Gustav Dyckerhoff GmbH
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 Dy Pack Verpackungen Gustav Dyckerhoff GmbH filed Critical Dy Pack Verpackungen Gustav Dyckerhoff GmbH
Publication of EP3246265A1 publication Critical patent/EP3246265A1/fr
Withdrawn legal-status Critical Current

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

Definitions

  • the invention relates to a valve bag for bulk material such as cement, gypsum, granules, animal feed or the like, with a floor and a floor standing opposite the valve floor.
  • a valve bag for bulk material such as cement, gypsum, granules, animal feed or the like
  • a floor and a floor standing opposite the valve floor Preferably, standing and / or valve bottom are formed in a cross or block bottom folding manner.
  • a valve for filling the valve bag is incorporated.
  • valve sacks are well known and are used in particular for the packaging and distribution of fine-grained bulk material such as cement, gypsum, granules, animal feed or the like.
  • the usual sizes are 5 kilos, 10 kilos or 25 kilos.
  • Such valve sacks are usually made of paper, wherein they may have one or more paper layers, which may also consist of a paper composite and / or coated paper. It may also be layers of other materials, such as a plastic film, as in the case of EP 1 858 769 B1 ,
  • a valve tube is often used in a corner impact of the valve bottom, through which the bag is filled.
  • the valve tube mechanically attached to the filler neck of a bottling plant, and the contents are introduced with an air flow in the bag.
  • This requires venting of the bag during and after filling.
  • the venting usually takes place through the paper walls of the bag.
  • it has proven necessary to ensure good ventilation in the area of the valve bottom.
  • it is particularly difficult to close the bag well against a Gugutaustritt and at the same time to provide good ventilation there.
  • Known in the prior art solutions have proved to be disadvantageous, inter alia, because of a too large material thickness of the soil structure and / or too high complexity and / or rigidity of the soil structure.
  • the invention is therefore based on the object to propose an improved ventilation in the valve base for valve bags, which affects as little as possible other important properties of the soil, in particular his ability to machine and tightness of the contents.
  • a vent insert is inserted into the valve bottom, wherein the vent insert is not connected to the valve tube and forms an opening to the second corner of the bottom fold.
  • the lack of connection with the valve tube stiffening of the valve bottom is avoided.
  • the opening of the vent insert to the second corner of the bottom fold allows venting over this corner impact. Air may pass from the interior of the bag through the vent insert and then flow through the opening over the second corner entry into the exterior space.
  • the vent insert is wholly or partly made of an air-permeable material, preferably made of paper. Further advantageously, the venting insert on an air-permeable surface, which faces the bag interior. In this way, it is particularly easy for air to escape from the bag interior through this surface and to continue to flow out into the environment via the opening of the venting insert.
  • the air-permeable surface is advantageously an air-permeable paper which simultaneously acts as a filter and also fine-grained or dusty filling material -. As cement - holds back in the bag interior.
  • the air permeability can also be ensured by a porous or perforated material, wherein the pore size can be suitably adapted to the intended filling.
  • the venting insert is designed as a pocket, which is closed to the interior of the bag and accordingly has only the opening to the outside space in the region of the second corner insert.
  • this pocket is spaced from the inside of the bag facing the end of the valve tube.
  • a bag-shaped vent insert can be advantageously prepared by a vent sheet inserted into the open valve bottom and closed when laying the soil by suitable bonding to a vent pocket.
  • the bonding of the venting pocket is L-shaped, wherein a leg of the L-structure runs along the edge of the venting insert or the venting pocket, which faces the first corner insert or the valve tube or the bag interior.
  • the other leg of the L-structure runs on one of the side flaps of the bottom fold along the edge of the side flap.
  • the venting insert is designed as extending between the two corner fences of the bottom fold hose, which is also open on the side of the valve.
  • this preferred venting insert has two openings, one in the region of the first and another in the region of the second Eckeinschlages the bottom fold.
  • this venting insert is designed as a hose closed towards the interior of the bag, which is introduced into the bottom of the valve in such a way that the bottom is well sealed against product discharge.
  • the hose has an air-permeable surface facing the interior of the bag, through which air can escape from the interior of the bag into the hose and flow into the outside space via its openings. Through the two openings a particularly good ventilation is achieved. In particular, after removal of the valve from the filler neck of the filling system, air can also escape well via the tube opening facing the first corner impact.
  • the vent insert can be advantageously designed as an internal latch, which extends from the middle floor area on the sofalzlinien the bottom fold to the side flaps of the bottom fold.
  • the open bottom can be sealed well, or it can be achieved by suitable bonding of the inner bolt that the vent insert is sealed well against the bag interior, so that air only through the air-permeable surfaces of the vent insert emerge from the bag interior and the opening of the Venting can flow into the outside space, while contents are reliably retained in the bag.
  • the inner bar can also cover the entire open valve bottom, and / or form a vent hose according to claim 5 after the laying of the floor and the bonding.
  • FIG. 1 shows the valve bag 10 according to the invention with a bottom 20 and an upper part 30, wherein in the upper part 30, the valve 50 is accommodated for filling the valve bag, which is why the bottom 20 is also referred to as floor 20, and the upper part 30 as a valve bottom 30.
  • both stand base 20 and valve bottom 30 are folded onto the front side 12 of the bag 10. Not recognizable is the back 14 of the bag, which is below the front 12.
  • the valve bottom 30 comprises a valve tube 50 for filling the bag, which is inserted in the valve bottom 30 in the region of the first corner impact 32 of the bottom fold as a valve.
  • FIG. 2 shows the open valve bottom 30 of a bag 10 according to the invention in cross-bottom fold, wherein neither valve tube nor vent insert are used.
  • the cross bottom fold forms the two corner stops 32 and 33, and the side flaps 38 and 39, which are closed to close the bottom to the Sofalzlinien 35 and 36 as indicated by the arrows a and b.
  • FIG. 3 shows the open valve bottom 30 of a bag according to the invention with a valve sheet 50 for forming a valve tube and a vent sheet 60 to form a venting insert.
  • the valve sheet 50 is inserted in the region of the first corner impact 32, and the vent sheet 60 in the region of the second corner impact 33 of the bottom fold.
  • valve sheet 50 and vent sheet 60 are not interconnected and spaced from each other. This avoids excessive material thickness in the floor area and excessive stiffening of the floor.
  • the vent sheet 60 is formed of an air-permeable paper.
  • an L-shaped adhesive strip 64 On the vent sheet 60 is an L-shaped adhesive strip 64, one leg of which extends along the inside of the bag facing edge of the venting sheet, from a side flap 38 over the central bottom area between the sofalzlinien 35 and 36 to the other side flap 39th Der other legs of the L-shaped adhesive contour 64 extends in the region of the side flap 38 in the direction parallel to the Sofalzline 35 near the outer edge of the side flap 38th
  • valve bottom is closed in the direction indicated by the arrows a and b as shown in Figure 4 by adding the side flaps 38 and 39.
  • the valve sheet 50 is formed from the valve sheet and the venting sheet is formed by the venting insert 60.
  • the adhesive strip 64 bonds the venting insert 60 to the interior of the bag as it is being laid.
  • the added valve bottom of the vent insert 60 thus forms a rectangular bag 60 made of paper, which is open on the side 62 and closed on the other three sides.
  • L-shaped adhesive contour 64 on the one hand a good closure of the venting pocket 60 can be achieved, and on the other hand a comparatively large and effectively positioned venting area.
  • FIG. 5 shows an oblique view of the valve bottom, in which the front side 12 of the bag is turned to the front
  • FIG. 6 an oblique view in which the back 14 of the bag is turned to the front.
  • the bag can be filled.
  • the open side 62 of the vent pocket 60 can vent air into the outside space. Since the other sides of the pocket 60 are closed, the pocket is closed to the interior of the bag as a whole, so that air can only pass through the bag from the interior of the bag through the venting insert and can flow outward. The contents, however, are retained by the closed bag in the interior of the bag.
  • the invention enables a floor structure with good ventilation while avoiding excessive material thickness and rigidity in the floor area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
EP17170611.2A 2016-05-19 2017-05-11 Sac à valve Withdrawn EP3246265A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202016003199.7U DE202016003199U1 (de) 2016-05-19 2016-05-19 Ventilsack

Publications (1)

Publication Number Publication Date
EP3246265A1 true EP3246265A1 (fr) 2017-11-22

Family

ID=58701527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17170611.2A Withdrawn EP3246265A1 (fr) 2016-05-19 2017-05-11 Sac à valve

Country Status (2)

Country Link
EP (1) EP3246265A1 (fr)
DE (1) DE202016003199U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113682632A (zh) * 2021-08-30 2021-11-23 成都市金橙包装制造有限公司 防漏阀口袋
EP4086186A1 (fr) * 2021-05-04 2022-11-09 DY-Pack Verpackungen Gustav Dyckerhoff GmbH Sac pour produits en vrac

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9106013U1 (de) * 1991-05-15 1991-07-04 Hoechst Ag, 6230 Frankfurt Ventilsack
DE4140213A1 (de) * 1991-12-06 1993-06-09 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh, 5962 Drolshagen, De Ventilsack mit entlueftungsventil
DE202007004838U1 (de) * 2007-03-27 2007-05-31 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Ventilsack
DE102007015099A1 (de) * 2007-03-29 2008-10-02 Construction Research & Technology Gmbh Papierventilsack mit Innenriegel
EP1858769B1 (fr) 2005-03-04 2008-10-08 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Sachet en papier
DE202010000042U1 (de) * 2010-01-14 2010-06-02 Papiersackfabrik Tenax Gmbh & Co. Kg Ventilsack mit Entlüftungsvorrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9106013U1 (de) * 1991-05-15 1991-07-04 Hoechst Ag, 6230 Frankfurt Ventilsack
DE4140213A1 (de) * 1991-12-06 1993-06-09 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh, 5962 Drolshagen, De Ventilsack mit entlueftungsventil
EP1858769B1 (fr) 2005-03-04 2008-10-08 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Sachet en papier
DE202007004838U1 (de) * 2007-03-27 2007-05-31 Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh Ventilsack
DE102007015099A1 (de) * 2007-03-29 2008-10-02 Construction Research & Technology Gmbh Papierventilsack mit Innenriegel
DE202010000042U1 (de) * 2010-01-14 2010-06-02 Papiersackfabrik Tenax Gmbh & Co. Kg Ventilsack mit Entlüftungsvorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4086186A1 (fr) * 2021-05-04 2022-11-09 DY-Pack Verpackungen Gustav Dyckerhoff GmbH Sac pour produits en vrac
CN113682632A (zh) * 2021-08-30 2021-11-23 成都市金橙包装制造有限公司 防漏阀口袋

Also Published As

Publication number Publication date
DE202016003199U1 (de) 2017-08-22

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