EP0767105B1 - Entlüftbarer Kreuzboden-Ventilsack - Google Patents
Entlüftbarer Kreuzboden-Ventilsack Download PDFInfo
- Publication number
- EP0767105B1 EP0767105B1 EP96115638A EP96115638A EP0767105B1 EP 0767105 B1 EP0767105 B1 EP 0767105B1 EP 96115638 A EP96115638 A EP 96115638A EP 96115638 A EP96115638 A EP 96115638A EP 0767105 B1 EP0767105 B1 EP 0767105B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- air
- folded
- cover sheet
- valved
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 12
- 238000004026 adhesive bonding Methods 0.000 claims description 9
- 230000035699 permeability Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims 4
- 239000010410 layer Substances 0.000 claims 2
- 239000000843 powder Substances 0.000 claims 1
- 239000002356 single layer Substances 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 abstract description 9
- 239000000945 filler Substances 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 17
- 230000001070 adhesive effect Effects 0.000 description 17
- 238000000034 method Methods 0.000 description 15
- 238000005429 filling process Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000012447 hatching Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000011092 plastic-coated paper Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
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 invention is directed to a cross bottom valve bag in the preamble of the type specified in claim 1 Sack a rectangular cross section, although it is used to manufacture it runs out of a hose.
- the rectangular shape results because you have the two Each hose ends folds into a so-called cross bottom, which basically has the following structure.
- this well-known cross-bottom bag without a cover sheet, it is whose stability is endangered. To improve stability, you have to in this case additional reinforcement sheets on one or both sides of the filter sheet, which are made of air-impermeable material and therefore have to be perforated. It is cumbersome and expensive. Unless you have the cover sheet mentioned for this sack attaches the filter sheet, the stability of the cross base is improved, but the air permeability deteriorates again. If the filter sheet extends only to the folded edges of the side flaps, the two flaps after folding in any case along the two Long sides of the rectangle outline are glued to the filter sheet.
- the invention has for its object to provide an inexpensive, material-saving, Easy-to-manufacture cross-bottom valve bag in the preamble to develop the type of claim 1 mentioned, due to optimal Venting can be filled particularly quickly.
- This is according to the invention achieved by the measures listed in the characterizing part of claim 1, which have the following special meaning.
- the filter sheet is integrated into the cross valve base and only attached there in certain areas.
- a full-surface attachment of the Filter leaf is only on the two narrow ends of its rectangular shape, namely on the one hand on the valve reinforcement sheet arranged on the corner turn and on the other hand on the opposite corner.
- On The longitudinal edge of its rectangular shape is the filter sheet as connection-free as possible compared to the side flaps folded over it. At most, there are few connection points to his Secure location.
- the two folded over it in free Distance side flaps only in the area of their end sections the filter sheet or the valve reinforcement sheet and the corner insert glued and in between a glue-free middle section the side flaps leave the filter sheet for ventilation during the filling process can take off.
- this is rectangular Cover with interruptions only in its marginal area on the two folded side flaps and the valve body as well as the corner fold glued, with no adhesive connection with the one below in the central zone lying filter sheet.
- Outlet channels are formed at the interruptions for the air.
- Under the central zone of the cover sheet and the exposed one The middle strip of the filter sheet is created during the filling process of the sack an air chamber through the air pushing outwards.
- This air chamber is already through the outlet channels as well as through the in itself Air-permeable central zone of the cover sheet is vented. So that becomes a very good ventilation achieved, which allows the bag to be filled quickly.
- a valve sack 10 a section of a single or multi-layer hose 20.
- the material is made to protect later contents from moisture the hose wall z. B. from a plastic-coated paper or a thin layer of film between two layers of paper and is not or only slightly breathable.
- the two are Folded and forming hose ends to form a cross base 11, 12, 1, a rectangular outline of the finished sacks filled with powdery or granular material 10.
- the Sack 10 thus has the shape of a, apart from rounded corner areas Cuboids. Both cross floors 11, 12 have different tasks fulfill.
- the upper cross plate 11 also includes one shown in FIG.
- Fig. 2 is the valve bag 10 with its two cross-bottom areas 11, 12 shown, namely in the flat state, before the filling of the sack.
- the base 12 is already in the finished state shown, while the valve cross plate 11 in a first folding phase of the hose 20 is shown.
- the folding structure in both cross floors 11, 12 is analog, but different in detail.
- the stand floor 12 is designed in a conventional way and has a finished cross bottom fold placed cover sheet 15, the full area with the below folded positions is connected.
- the structure of the valve cross plate 11 comprises, starting from the hose 20, the following four folding parts.
- the short narrow sides 16, 17 of the cross bottom shown in FIG. 1 11 are of the two corner turns 21 shown in FIG. 2, 22 formed, which are folded against each other.
- the two long long sides 18, 19 from the rectangular outline of the cross base shown in FIG. 1 formed by two side flaps 23, 24, which are still in the extended state in FIG. 2, but are shown in Fig. 7a in the folded state.
- 26 and 27 are the corresponding dash-dotted lines shown in FIGS. 2 to 5b Designated 26, 27.
- the front tube wall forms a folded edge 29 around one, there to produce still stretched side flap 24.
- valve reinforcement sheet 30 applied, which in In the present case, although it is formed in one layer, it is also formed in several layers could be. As can be seen from Fig. 4, this sheet 30 is on one end folded over and its lower, short folded position 31 in the end area, as can be seen by hatching in FIG. 3, in the area of the two side flaps 23, 24 glued. Instead of this sheet 30 could also be a sleeve-shaped insert protruding inwards or outwards can be used, which then forms the filling valve.
- a filter sheet 40 made of air-permeable material the is rectangular and only on its two narrow ends 41, 42 is provided with a linear adhesive 43.
- the adhesive 43 extends over that lying on the corner wrap 21 Valve reinforcement sheet 30.
- the between the two end bonds 43 lying longitudinal edge areas 48, 49 of the filter sheet 40 are completely connection-free, thus not connected to the associated side flaps 23 or 24.
- one or a few adhesive dots could be used to secure the sheet position be provided, which are identified by a cross in Fig. 5a and with 28 are designated.
- micro-needling is used, which is indicated by dot hatching 25 is illustrated in Fig. 5a.
- FIG. 5b shows a process step for formation corresponding to FIG. 5a a valve cross bottom 11 in an alternative embodiment of a valve sack 10 '.
- this valve bag 10 ' is first carried out the same process steps as the valve bag 10, have been described according to FIG. 5a, which is why the previous statements apply. Suffice it to the differences enter into.
- These consist in the fact that this is also rectangular Filter sheet 44 parallel to the mentioned fold lines 26, 27 of the two Side flaps 23, 24 have a Z fold 45, the two pointing away from each other Z-folded edges 46, 47 has.
- This filter sheet 44 is also well permeable to air, for which also in this case a micro needling 25 in the Filter sheet 44 producing paper is used. This micro needling is illustrated by a hatching in the drawings.
- 6a and 6b show the process stage of FIG. 5a and 5b each subsequent process step.
- On the two side flaps 23, 24 is only an adhesive application in the respective end sections 35 36 applied.
- the middle section in between 33 and 34 of the two side flaps 23, 24 remain absolutely adhesive-free.
- FIGS. 7a and 7b Relationships As already mentioned, there are the two side flaps 23, 24 folded against each other, whereby the respective, already mentioned Longitudinal sides 18, 19 of the cross base 11 arise. It is significant that the folded side flaps 23, 24 with their respective longitudinal edges 37, 38 are arranged at a free distance 39. That will be through a Correspondingly narrow width 63, 64 of the two side flaps 23, 24 reached. Therefore, between the two longitudinal edges 37, 38 of the two Side flaps 23, 24 an exposed central strip 60 of the filter sheet 40. This also applies, as FIG.
- FIG. 7b shows, in an analogous manner to that with the Z-fold 45 provided filter sheet 44 of the in the previous Fig. 6b clarified alternative. It is decisive that this valve bag 10 'the two Z-folded edges 46, 47 in this distance region 39 between the side flaps 23, 24 come to rest. This will make her later, in connection with Fig. 11b to be explained in more detail.
- a cover sheet serves as the last component for both valve sacks 10, 10 ' 50 or 50 ', for which, if one takes into account Fig. 11b', three Variants can result.
- the cover sheet 50 is in accordance with 8a and 9b.
- Air-permeable material can already be used for the cover sheet 50 be used.
- a central zone 52 of the Cover sheet 50 is with air slots to increase air permeability 53 provided.
- a frame-shaped adhesive bond 54, 55 is provided, which is provided with breaks 56.
- the one of these is adhesive Edge zones 57, 58 central zone 52 enclosed on all sides by each bond free and therefore fully breathable. This air permeability is due to the louvers 53 already mentioned are increased.
- These louvers 53 as can be seen from FIG. 10a, run transversely to the long cross-floor sides described 18, 19 and are expedient with the adhesive breaks 56 of the edge zones 58 aligned.
- Fig. 11a The conditions resulting from this sack 10 during the filling process can be seen from Fig. 11a.
- Fig. 11a is the central zone of the Cover sheet 50 drawn partially broken out to the circumstances can be seen better on the longitudinal edge zones 58.
- Arrows 61 By the outside air, the flow of which is indicated by dash-dotted lines Arrows 61 is illustrated, arises between the central zone 52 of the cover sheet 50 and the free center strip 60 of the filter sheet 40 and the areas of the side flaps 23 which have not yet been connected, 24 an inflating air chamber 70, which is characterized by both the from Fig. 10a visible air slots 53 and from Fig. 11a apparent outlet channels 59 is vented.
- the cover sheet 50 'intended for the alternative valve bag 10' has one different construction compared to the cover sheet 50 'of the valve bag 10, which is shown in Figures 8b, 9b and 9c. It's just the differences compared to the previous cover page 50, why in all other respects the previous description applies.
- An essential difference consists in that - in the direction shown in Fig. 10b Seen along sides 18, 19 of the cross base 11 - the cover sheet 50 ' C-shaped folding profile according to FIG. 9b, which between its has two C-edge regions 65, 66 a C-central region 62.
- the already the refolding 51 described in the preceding cover sheet 50 also lies with this alternative 50 ', as can be seen in particular from FIG. 9c is.
- the shape of the cover sheet in the use position during the filling process is through the solid line 50 ′′ illustrates in FIG. 11b.
- an air chamber 70 is created between the central zone 52 of the cover sheet 50 '' by the outward pushing, indicated by arrows 71 Air opposite the filter sheet 44 and the two side flaps 23, 24 in the area of the exposed central sections shown in FIG. 7b 33, 34 is generated.
- the cover sheet 50 ′′ can curve like a bell, because the in the initial state compared to the bonds 55 'of Fig. 11b projecting C-fold edges 68 can roll up, so that now, in the position of use 50 '' of the cover sheet, a folding point offset to the outside 68 ''.
- the air chamber 70 is not only in the flow 71 mentioned Area of the air-permeable central zone 52 of the 50 '' in the use position existing cover sheet is vented, but also in the sense of Flow arrows 72 of Fig. 12b visible air outlets. How nice 11b was to be seen, are located at the C-edge region of the Cover sheet 50 'provided adhesive bonds 55' on the outer surfaces, which is why their inner surfaces remain free.
- Adhesive 54 ' which is illustrated in Fig. 12b, leaves the inner surfaces of the C-edge area is unaffected, which is why there are longitudinal air outlet channels 73 already in the area in connection with FIG. 9c described smooth edge zone 67 of the cover sheet result.
- Fig. 11b shows an alternative to Fig. 11b. Only the deviations are said to be compared to the measures shown in FIGS. 11b and 12b are, which is why the previous description applies in other respects.
- the longitudinally profiled C-shape here too Cover sheet 75 with its two C-edge areas 76 not with the two Side flaps 23, 24 from the valve cross base 11 is connected, but with the adjoining hose side wall 74 of the sack 10 '.
- the analog bonds 55 'on the inner surface of the two C-edge areas 76 In other respects, this already occurs here described bell-shaped air chamber 70 in use 11b '.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Pens And Brushes (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Description
- Fig. 1
- die perspektivische Draufsicht auf das obere, ein Füllventil aufweisendes Ende eines bereits gefüllten Kreuzboden-Ventilsacks nach der Erfindung,
- Fig. 2
- einen Abschnitt eines zur Bildung des Sacks von Fig. 1 dienenden flach liegenden Schlauches, und zwar mit den Schlauchbereichen, die den oberen ventilbildenden Kreuzboden und den unteren Kreuzboden erzeugen, wobei der Ventil-Kreuzboden in einer ersten Verfahrensstufe gezeigt ist, während der untere Kreuzboden bereits in seinem fertigen Endzustand dargestellt ist,
- Fig. 3
- eine auf Fig. 2 folgende weitere Verfahrensstufe zur Herstellung des oberen Ventil-Kreuzbodens mit Ventilverstärkungsblatt,
- Fig. 4
- eine versprungene Schnittansicht durch den Schlauch von Fig. 3 längs der dortigen Schittlinie IV-IV,
- Fig. 5a und 5b
- zwei alternative Ausführungen in der sich danach ergebenden Verfahrensstufe zur Herstellung des Ventilsacks,
- Fig. 5b'
- eine schematische Querschnittansicht durch das in Fig. 5b gezeigte Zwischenprodukt längs der dortigen Schnittlinie Vb'-Vb',
- Fig. 6a und 6b
- die sich an die Verfahrensstufe von 5a und 5b anschließende weitere Verfahrensstufe für die beiden Alternativen, wo aus Gründen der Deutlichkeit die meisten unsichtbaren Linien der verschiedenen übereinanderliegenden Papierlagen und Blätter nicht dargestellt worden sind,
- Fig. 7a und 7b
- die sich an die Fig. 6a bzw. 6b anschließende weitere Verfahrensstufe,
- Fig. 8a und 8b
- die Draufsicht auf zwei alternative Ausführungen eines Deckblatts, die für die weitere Behandlung der beiden Ausführungen des Sackes gemäß Fig. 7a und 7b bestimmt sind,
- Fig. 9a und 9b
- Längs- bzw. Querschnittansichten durch die in Fig. 8a bzw. 8b gezeigten Deckblätter längs der Schnittlinien IXa-IXa bzw. IXb-IXb,
- Fig. 9c
- die Unteransicht des in Fig. 8b gezeigten Deckblatts für die zweite Alternative des erfindungsgemäßen Ventilsacks,
- Fig. 10a und 10b
- in Draufsicht die letzte Verfahrensstufe zur Herstellung der beiden Alternativen des erfindungsgemäßen Ventilsacks, die sich an die Verfahrensstufe von Fig. 7a bzw. 7b anschließen,
- Fig. 11a,
- in schematischer, perspektivischer Darstellung, einen Abschnitt vom oberen Bereich des gemäß Fig. 10a gestalteten Ventilsacks während des Füllvorgangs,
- Fig. 11b
- eine schematische Querschnittansicht durch den entsprechenden oberen Bereich des in Fig. 11a gezeigten Ventilsacks während des Füllvorgangs,
- Fig. 11b',
- in einer mit Fig. 11b entsprechenden Darstellung, eine Variante des in Fig. 11b bereits gezeigten Ventilsacks, und
- Fig. 12b,
- in perspektivischer, schematischer Darstellung, den Eckbereich eines Ventilsacks in der Ausführung gemäß Fig. 11b während des Füllvorgangs.
Claims (11)
- Kreuzboden-Ventilsack (10, 10'), bestehend aus einem ein- oder mehrlagigen Schlauch (20), dessen Schlauchwand aus nicht oder wenig luftundurchlässigem Material gebildet ist,und dessen beide Schlauchenden jeweils zu einem Kreuzboden (11, 12) gefaltet sind und einen Rechteckumriß im oberen und unteren Boden des mit pulverförmigem oder körnigem Gut gefüllten Sacks (10, 10') bestimmen,wobei die kurzen Schmalseiten (16, 17) des Kreuzbodens (11) durch zwei gegeneinander gefaltete Eckeinschläge (21, 22) des Schlauches (20) entstehen,im Bereich des ein Füllventil (13) bildenden Eckeinschlags (21), der den Ventil-Kreuzboden (11) bildet, ein ggf. mehrlagiges Ventilverstärkungsblatt (30) aufgebracht ist,über die Eckeinschläge (21, 22) ein durchgehendes, rechteckförmiges Filterblatt (40, 44) aus hoch luftdurchlässigem Material gelegt und bereichsweise verklebt wird,die beiden langen Längsseiten (18, 19) des Kreuzbodens (11) aus zwei Seitenklappen (23, 24) erzeugt und über das Filterblatt (40, 44) gefaltet werden,wobei die umgefalteten Seitenklappen (23, 24) mit ihren beiden Längskanten (37, 38) in einem freien Abstand (39) zueinander liegen und ein dazwischenliegender Mittelstreifen (60) des Filterblatts (40, 44) nicht abgedeckt wird,und über die beiden Seitenklappen (23, 24) und die beiden Eckeinschläge (21, 22) ein rechteckförmiges Deckblatt (50, 50') gelegt und bereichsweise verklebt wird,
dadurch gekennzeichnet,daß das Filterblatt (40, 44) in dem das Ventilverstärkungsblatt (30) aufweisenden Ventil-Kreuzboden (11) integriert ist und nur die beiden Schmalenden (41, 42) seiner Rechteckform verklebt (43) sind, nämlichdas eine Schmalende (41) mit dem Ventilverstärkungsblatt (30) und das andere Schmalende (42) mit dem gegenüberliegenden Eckeinschlag (22), während die dazwischen liegenden beiden Längsrandbereiche (48, 49) des rechteckförmigen Filterblatts (40, 44) gegenüber den Seitenklappen (23, 24) entweder verbindungsfrei oder nur an einem oder wenigen Punkten (28) angeheftet sind,und daß die beiden Seitenklappen (23, 24) lediglich an ihren den beiden kurzen Schmalseiten (16, 17) des Kreuzbodens (11) zugekehrten Endabschnitten (35) mit dem Filterblatt (40, 44), dem Ventilverstärkungsblatt (30) und den Eckeinschlägen (21, 22) verklebt sind, aber dazwischen jeweils einen klebstoff-freien Mittelabschnitt (33, 34) besitzen,daß die Verklebung des Deckblatts (50, 50') nur rahmenförmig (54, 55; 54', 55'), ggf. mit Unterbrechungen (56; 73), in der Randzone seines Rechteckumrisses erfolgt und an den Unterbrechungen der Verklebung Luft-Auslaßkanäle (59; 73) entstehen, während die Zentralzone (20) des Deckblatts (50, 50') klebstoff-frei bleibt und luftdurchlässig (53) ist,und daß sich beim Füllvorgang des Sacks (10, 10') zwischen der Zentralzone (52) des Deckblatts (50, 50', 50'') und dem Filterblatt eine Luftkammer (70) durch die nach außen drängende Luft (61; 71) bildet und diese Luftkammer (70) durch die Auslaßkanäle (59; 73) und durch die luftduchlässige Zentralzone (52) des Deckblatts (50, 50') entlüftet wird. - Ventilsack nach Anspruch 1, dadurch gekennzeichnet, daß die Unterbrechungen (56) in der rahmenförmigen Verklebung des Deckblatts (50) sich an den beiden Längsseiten (18, 19) des Kreuzbodens (11) befinden und diese längsseitigen Unterbrechungen (56) quergerichtete Luft-Auslaßkanäle (59) erzeugen.
- Ventilsack nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß - in Richtung der Längsseiten (18, 19) des Kreuzbodens (11) gesehen - das Deckblatt (50') ein C-förmiges Faltprofil aufweist und die rahmenförmige Verklebung (54, 55') sich sowohl über die beiden C-Randbereiche (65, 66) als auch über die beiden Endstücke (51, 67) des C-Mittelbereichs (62) seines Faltprofils erstreckt.
- Ventilsack nach Anspruch 3, dadurch gekennzeichnet, daß die Verklebung (55') sich an der Außenfläche der beiden C-Randbereiche befindet und die Unterbrechungen der Verklebung (54', 55') sich zwischen dem Endstück (67) des C-Mittelbereichs (52) und den beiden gegeneinander gefalteten C-Randbereichen (65, 66) des C-förmigen Faltprofils (50') vom Deckblatt (50') ergeben, wo längsgerichtete Luft-Auslaßkanäle (73) entstehen.
- Ventilsack nach Anspruch 3 und 4, dadurch gekennzeichnet, daß die Verklebungen (55') der beiden C-Randbereiche (65, 66) gegenüber den ursprünglichen C-Faltkanten (68) des Deckblatts zurückgesetzt (69) sind und eine Verbindung mit den Seitenklappen (23, 24) des Ventil-Kreuzbodens (11) erzeugen.
- Ventilsack nach Anspruch 3, dadurch gekennzeichnet, daß die Verklebung (55') eines C-förmigen Deckblatts (75) sich an der Innenfläche der beiden C-Randbereiche (76) befindet und eine Verbindung mit der Schlauchseitenwand (74) des Sacks (10') jenseits der Längskanten (18, 19) des Ventil-Kreuzbodens (11) erzeugt.
- Ventilsack nach einem oder mehreren der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß das Filterblatt (44) in Richtung der Längsseite (18, 19) des Kreuzbodens (11) in sich Z-förmig (45) gefaltet ist, wobei die beiden Z-Faltkanten (46, 47) im Bereich des freien Mittelstreifens (60) vom Filterblatt (44) liegen.
- Ventilsack nach Anspruch 7, dadurch gekennzeichnet, daß das C-förmige Deckblatt (50') sich beim Füllvorgang mit seinem C-Mittelbereich (60) glockenförmig über die beiden Seitenklappen anhebt (50'') und das Z-förmig gefaltete (45) Filterblatt (44) mit seinen beiden Z-Falten (46, 47) zwischen den beiden gegeneinander weisenden Längskanten (37, 38) der umgefalteten Seitenklappen (23, 24) sich wenigstens teilweise entfaltet.
- Ventilsack nach einem oder mehreren der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Filterblatt (40, 44) zur Luftdurchlässigkeit eine Mikronadelung (25) besitzt.
- Ventilsack nach einem oder mehreren der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das Deckblatt (50, 50') in seiner klebstoff-freien Zentralzone zur Luftdurchlässigkeit mit Luftschlitzen (53) versehen ist.
- Ventilsack nach Anspruch 10, dadurch gekennzeichnet, daß die Luftschlitze (53) quer zur Längsseite (18, 19) des Kreuzbodens (11) verlaufen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19536740 | 1995-10-02 | ||
DE19536740 | 1995-10-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0767105A1 EP0767105A1 (de) | 1997-04-09 |
EP0767105B1 true EP0767105B1 (de) | 1999-04-14 |
Family
ID=7773861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96115638A Expired - Lifetime EP0767105B1 (de) | 1995-10-02 | 1996-09-30 | Entlüftbarer Kreuzboden-Ventilsack |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0767105B1 (de) |
AT (1) | ATE178860T1 (de) |
DE (1) | DE59601648D1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010000042U1 (de) | 2010-01-14 | 2010-06-02 | Papiersackfabrik Tenax Gmbh & Co. Kg | Ventilsack mit Entlüftungsvorrichtung |
DE202013102644U1 (de) | 2013-06-19 | 2013-07-24 | Papiersackfabrik Tenax Gmbh & Co. Kg | Ventilsack mit Entlüftungsvorrichtungen |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19839106A1 (de) * | 1998-08-27 | 2000-03-09 | Wacker Chemie Gmbh | Großgebinde für hochdisperse, hochlufthaltige Feststoffe und ein Verfahren zu deren Befüllung |
FI20000169A (fi) * | 2000-01-28 | 2001-07-29 | Upm Kymmene Corp | Venttiilisäkki |
US6986605B1 (en) | 2003-04-23 | 2006-01-17 | Exopack-Technology, Llc | Multiwall vented bag, vented bag forming apparatus, and associated methods |
DE102006050461B4 (de) * | 2006-10-20 | 2009-07-09 | Mondi Ag | Ventilsack |
HUP0900208A2 (en) * | 2009-04-08 | 2010-11-29 | Zoltan Mandzsu | Packaging methods, valve bags and packages |
HUP0900669A2 (en) * | 2009-10-26 | 2010-07-28 | Zoltan Mandzsu | Plastic packing bag with overpressure relief, packing method and system |
EP2608954B1 (de) | 2010-08-25 | 2017-03-15 | Windmöller & Hölscher KG | Sack sowie verfahren zur herstellung von säcken |
DE202017001357U1 (de) * | 2017-03-13 | 2018-06-14 | Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh | Mehrlagiger Ventilsack |
BR202018011387Y1 (pt) * | 2018-06-05 | 2024-02-27 | Klabin S.A. | Disposição construtiva em saco de papel |
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 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1085027B (de) * | 1958-04-16 | 1960-07-07 | Bischof & Klein Papierverarbei | Ventilsack aus Papier oder aus einem aehnlichen Werkstoff |
DE1611669A1 (de) * | 1967-09-16 | 1971-01-14 | Hans Lissner | Ventilsack aus Kunststoff mit unter Bildung von Eckeinschlaegen hergestelltem Boden sowie Verfahren zur Herstellung eines solchen Ventilsackes |
US3989182A (en) * | 1976-02-12 | 1976-11-02 | Great Plains Bag Corporation | Vented bag |
-
1996
- 1996-09-30 DE DE59601648T patent/DE59601648D1/de not_active Expired - Lifetime
- 1996-09-30 EP EP96115638A patent/EP0767105B1/de not_active Expired - Lifetime
- 1996-09-30 AT AT96115638T patent/ATE178860T1/de not_active IP Right Cessation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010000042U1 (de) | 2010-01-14 | 2010-06-02 | Papiersackfabrik Tenax Gmbh & Co. Kg | Ventilsack mit Entlüftungsvorrichtung |
EP2345595A1 (de) | 2010-01-14 | 2011-07-20 | Papiersackfabrik Tenax GmbH & Co. KG | Ventilsack mit Entlüftungsvorrichtung |
DE202013102644U1 (de) | 2013-06-19 | 2013-07-24 | Papiersackfabrik Tenax Gmbh & Co. Kg | Ventilsack mit Entlüftungsvorrichtungen |
EP2684813A2 (de) | 2013-06-19 | 2014-01-15 | Papiersackfabrik Tenax GmbH & Co. KG | Ventilsack mit Entlüftungsvorrichtungen |
Also Published As
Publication number | Publication date |
---|---|
DE59601648D1 (de) | 1999-05-20 |
ATE178860T1 (de) | 1999-04-15 |
EP0767105A1 (de) | 1997-04-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1858769B1 (de) | Papiersack | |
EP0767105B1 (de) | Entlüftbarer Kreuzboden-Ventilsack | |
EP3606835B1 (de) | Mehrlagiger sack und verfahren zur herstellung eines mehrlagigen sackes | |
EP2345595B1 (de) | Ventilsack mit Entlüftungsvorrichtung | |
EP3541717B1 (de) | Mehrlagiger ventilsack | |
EP1888417A1 (de) | Schutzverpackung für einen gegenstand | |
DE69814470T2 (de) | Geschlossener sack mit luftaustritt | |
DE102019100193A1 (de) | Mehrlagiger Sack | |
WO2019238402A1 (de) | Mehrlagiger sack und verfahren zur herstellung eines mehrlagigen sackes | |
DE2935971A1 (de) | Kreuz- oder klotzbodenventilsack aus papier oder papier umfassendem werkstoff. | |
DE1486238C3 (de) | Mehrlagiger Kreuzbodensack | |
DE202021106636U1 (de) | Papierventilsäcke mit nicht-kontinuierlicher Längsnahtklebung | |
EP3107816B1 (de) | Sack | |
DE4021801A1 (de) | Sack oder beutel mit im gefuellten zustand rechteckigem boden und angeklebtem griffteil | |
CH644304A5 (de) | Verfahren zum herstellen von mit kreuzboeden versehenen saecken. | |
DE202005004750U1 (de) | Ventil für einen Papiersack | |
DE202013102644U1 (de) | Ventilsack mit Entlüftungsvorrichtungen | |
DE4140213A1 (de) | Ventilsack mit entlueftungsventil | |
DE3119175C2 (de) | ||
DE1802854B2 (de) | Mehrlagiger Ventilsack | |
DE202021106637U1 (de) | Papierventilsäcke mit nicht-verklebter Sperrschicht | |
DE823975C (de) | Kreuzboden, insbesondere an Ventilsaecken | |
DE1486726B1 (de) | Mit Einfaltungen versehener mehrwandi ger Beutel oder Sack | |
DE3719085A1 (de) | Block- oder kreuzbodenbeutel | |
DE1411548C (de) | Ventilsack aus Papier od dgl, insbesondere Kreuzbodenventilsack |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT DE FR GB IT SE |
|
17P | Request for examination filed |
Effective date: 19970221 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19980714 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE FR GB IT SE |
|
REF | Corresponds to: |
Ref document number: 178860 Country of ref document: AT Date of ref document: 19990415 Kind code of ref document: T |
|
ET | Fr: translation filed | ||
ITF | It: translation for a ep patent filed | ||
REF | Corresponds to: |
Ref document number: 59601648 Country of ref document: DE Date of ref document: 19990520 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19990504 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20060821 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20060919 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20060920 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20060930 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20060918 Year of fee payment: 11 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20070930 |
|
EUG | Se: european patent has lapsed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070930 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20080531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071001 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071001 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070930 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20091002 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59601648 Country of ref document: DE Effective date: 20110401 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110401 |