EP0947438A1 - Moyen d'emballage sous forme de sac ou de sachet en film plastique ou en un matériau similaire étanche à l'air - Google Patents

Moyen d'emballage sous forme de sac ou de sachet en film plastique ou en un matériau similaire étanche à l'air Download PDF

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Publication number
EP0947438A1
EP0947438A1 EP99102492A EP99102492A EP0947438A1 EP 0947438 A1 EP0947438 A1 EP 0947438A1 EP 99102492 A EP99102492 A EP 99102492A EP 99102492 A EP99102492 A EP 99102492A EP 0947438 A1 EP0947438 A1 EP 0947438A1
Authority
EP
European Patent Office
Prior art keywords
air
sack
wall
permeable
bag
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Withdrawn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
EP99102492A
Other languages
German (de)
English (en)
Inventor
Jürgen Sundermann
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.)
Bischof and Klein SE and Co KG
Original Assignee
Bischof and Klein SE 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 Bischof and Klein SE and Co KG filed Critical Bischof and Klein SE and Co KG
Publication of EP0947438A1 publication Critical patent/EP0947438A1/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Withdrawn legal-status Critical Current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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/01—Ventilation or drainage of bags

Definitions

  • the invention relates to a packaging in the form of a sack or bag made of plastic film or the like. Air-impermeable Material according to the preamble of claim 1.
  • Such flexible packaging in the form of a bag or Bags are known in numerous embodiments.
  • the Sack material consists primarily of plastic film (Mono or coex film) or corresponding composite films, around the packaging its airtight and above all To give things moisture-protected character.
  • plastic sacks or bags are therefore in particularly suitable for overseas transport, since it due to the peculiarity of the plastic films used Seawater and Fully splash-proof.
  • the invention has for its object a packaging in the form of a sack or bag made of plastic film or Air-impermeable material of the type specified above Way of creating, on the one hand, effective ventilation following its filling with filling material tightly sealed packaging enables and on the other hand at the end of the venting process with simple Means a secure watertight closure of the vent can be produced.
  • Air chamber with a vent valve in the form of a die Breather opening of a valve hose delimiting a channel is provided, one end of which is free in the If the air chamber opens, the ventilation is more aerodynamic In the manner specified by the valve hose Vent channel concentrates what the effectiveness and speed with which the venting process can be carried out, influenced favorably.
  • the Venting process can be that of the outer end of the valve hose formed with simple means effortlessly grasped from the outside and hermetic closed, in particular welded by the A free valve hose for this closure process outer projection against the outer wall of the sack Packaging can present.
  • vented and hermetically sealed filled packaging ensures a good stackability minimized packing volume and is thanks to a safe Moisture protection for water-endangered transport and Storage, especially for those at risk of sea water and splash water Overseas transportation, ideally suited.
  • a flexible packaging made of air-impermeable, moisture-proof material than Whole shown with 1 sack made of plastic film.
  • the sack 1 is at its bottom end 2 by a Cross weld seam closed while the head end 3 initially is left open.
  • the sack 1 is called the above open sack delivered to a filling company in which a Filling from the open head end 3 with powder or free-flowing filling material is made. After completion of the filling process also becomes the head end in filling mode 3 of the bag 1 closed by a cross weld.
  • the sack 1 has an outer wall 4, which is an initial one flat plastic film piece is formed by a Longitudinal weld seam is closed to form a bag tube.
  • the longitudinal tube seam comprises two individual ones, in FIG. 1 dash-dotted welds 5 and 6, the correspondingly overlapping longitudinal edge parts 7 and 8 of the outer bag wall 4 connect to each other.
  • An inner tubular is concentric in the outer wall 4
  • the filling chamber 10 is of the inner layer 9 of the sack limited all around.
  • the material of the inner layer 9 is with perforations, e.g. Needles provided like it by the dashed representation of the inner layer 9 in Fig. 2 is indicated, in the rest of the individual Material layers in the interest of clear presentation pulled apart, shown at a mutual distance are.
  • the perforations in the inner wall 9 allow an air passage from the filling space 10 into an air chamber 11, the basic form in the example of FIGS. 1 and 2 of an annulus, the inside of the inner wall 9 and bounded on the outside by the outer wall 4 all around as well as on the face of the cross welds at the bottom end 2 and head end 3 of the filled and closed sack 1 is completed.
  • the air chamber 11 is in the area of the lower, the bottom end 2 facing half of the bag 1 with a vent valve provided in the form of a valve hose 12, its inner end 13 for performing ventilation opens out freely in the air chamber 11.
  • the outer end 14 of the valve hose 12 forms a closure area which after completion of an external venting process, in particular by making a cross weld, tight is lockable.
  • the valve hose 12 has the shape of a flat hose section, the one as such between the overlapping ones Wall parts 7 and 8 of the outer wall 4 pushed and with its two halves lying flat on top of each other the longitudinal welds 5 and 6 with the two wall parts 7 and 8 is welded tight.
  • the length and arrangement of the Valve hose 12 is chosen so that it in his with the bag 1 welded state a free outer Overhang corresponding to that which can be used for its closure Has area opposite the bag outer wall 4. Easy handling when installing one Cross weld in the closure area 14 of the valve hose 12 is given by the fact that the valve hose 12 with its central axis perpendicular to that between Head end 3 and bottom end 2 of the bag 1 extending Bag center axis is arranged. It is not necessary the filled sack 1 even after the venting process, about in the state shown in FIG. 2, for making to handle a closure of the vent opening or edit.
  • FIGS. 3 and 4 corresponds in all essential points of the embodiment described above, so that for equal or matching Parts have the same reference numerals.
  • the filling room 10 is predominantly from in this embodiment the air-impermeable layer of material 4 and only in that strip-shaped area of the inner wall part 8 'between Bottom end 2 and head end 3 permeable to air through the perforations educated. This can be done in the use cases are sufficient in which the air pockets in the filling space 10 are lower.
  • valve hose 12 Through the outer longitudinal seam 6, the valve hose 12, as in the case of the first embodiment, half with the wall parts 7, 8 ', outside the perforated area, welded while the inward longitudinal weld seam 5 through the perforated inner wall part 8 ' its inner edge tightly with the wall part 7 of Bag wall 4 connects.
  • the air-permeable inner wall part instead of the air-permeable inner wall part through perforations in an air-impermeable structure Bag material, such as plastic film in particular, it's basically just as good to educate possible for the air-permeable inner wall part one of air permeable sack material, preferably heat sealable or weldable, like in particular a plastic fiber fleece or plastic ribbon fabric.
  • the Air-permeable inner wall part forming material layer 9 is integrated as a whole in the sack and in the sealing seams included at the bottom end 2 and head end 3 is, while in the embodiment of FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
EP99102492A 1998-04-03 1999-02-10 Moyen d'emballage sous forme de sac ou de sachet en film plastique ou en un matériau similaire étanche à l'air Withdrawn EP0947438A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE29806122 1998-04-03
DE29806122U 1998-04-03
DE29807807U DE29807807U1 (de) 1998-04-03 1998-04-30 Packmittel in Form eines Sackes oder Beutels aus Kunststoffolie o.dgl. luftundurchlässigem Material
DE29807807U 1998-04-30

Publications (1)

Publication Number Publication Date
EP0947438A1 true EP0947438A1 (fr) 1999-10-06

Family

ID=26061393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99102492A Withdrawn EP0947438A1 (fr) 1998-04-03 1999-02-10 Moyen d'emballage sous forme de sac ou de sachet en film plastique ou en un matériau similaire étanche à l'air

Country Status (4)

Country Link
EP (1) EP0947438A1 (fr)
CZ (1) CZ116099A3 (fr)
DE (1) DE29807807U1 (fr)
PL (1) PL331696A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2868594A1 (fr) * 2013-10-30 2015-05-06 Mondi Halle GmbH Sachet composite en tissu en matière plastique
WO2016205905A1 (fr) * 2015-06-26 2016-12-29 Baggio Antonio Eduardo Sac industriel en papier avec valve fronto-dorsale

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006004291A1 (de) * 2006-01-31 2007-08-09 Windmöller & Hölscher Kg Sack und Verfahren zur Herstellung desselben

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1401713A (en) * 1973-01-17 1975-07-30 British Visqueen Ltd Plastics sack
DE9106013U1 (de) * 1991-05-15 1991-07-04 Hoechst Ag, 6230 Frankfurt Ventilsack
DE4303894A1 (de) * 1993-02-10 1994-08-18 Haver & Boecker Mit einem Schüttgut füllbares, im Leerzustand flaches Packmittel sowie Verfahren und Vorrichtung zum Herstellen des flachen sowie zum Entlüften und Verschließen des gefüllten Packmittels
GB2303116A (en) * 1995-05-31 1997-02-12 Kaken Kogyo Co Ltd Check valve for a pouch with releasing film

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1212857B (de) * 1962-04-25 1966-03-17 Olin Mathieson Ventilsack zur Aufnahme und Verpackung von schuettbarem Gut
DE6810382U (de) * 1968-12-07 1969-04-24 Badische Anilin & Soda Fabrik Ag Doppelwandiges stapelbares packmittel
DE9002330U1 (de) * 1990-02-28 1990-05-03 Bischof Und Klein Gmbh & Co, 4540 Lengerich Flexibles Verpackungsbehältnis in Form eines Sackes oder Beutels aus Kunststoffolie
US5346312A (en) * 1993-06-07 1994-09-13 Flexo Transparent Inc. Bags for maintaining crispness of cooked foodstuff
DE19538146A1 (de) * 1995-10-13 1997-04-17 Rovema Gmbh Beutel mit mindestens einer Entlüftungsstelle und Verfahren zur Herstellung des Beutels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1401713A (en) * 1973-01-17 1975-07-30 British Visqueen Ltd Plastics sack
DE9106013U1 (de) * 1991-05-15 1991-07-04 Hoechst Ag, 6230 Frankfurt Ventilsack
DE4303894A1 (de) * 1993-02-10 1994-08-18 Haver & Boecker Mit einem Schüttgut füllbares, im Leerzustand flaches Packmittel sowie Verfahren und Vorrichtung zum Herstellen des flachen sowie zum Entlüften und Verschließen des gefüllten Packmittels
GB2303116A (en) * 1995-05-31 1997-02-12 Kaken Kogyo Co Ltd Check valve for a pouch with releasing film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2868594A1 (fr) * 2013-10-30 2015-05-06 Mondi Halle GmbH Sachet composite en tissu en matière plastique
WO2016205905A1 (fr) * 2015-06-26 2016-12-29 Baggio Antonio Eduardo Sac industriel en papier avec valve fronto-dorsale

Also Published As

Publication number Publication date
CZ116099A3 (cs) 2000-05-17
PL331696A1 (en) 1999-10-11
DE29807807U1 (de) 1999-08-12

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