EP1424293B1 - Plastic packaging container - Google Patents
Plastic packaging container Download PDFInfo
- Publication number
- EP1424293B1 EP1424293B1 EP03027250A EP03027250A EP1424293B1 EP 1424293 B1 EP1424293 B1 EP 1424293B1 EP 03027250 A EP03027250 A EP 03027250A EP 03027250 A EP03027250 A EP 03027250A EP 1424293 B1 EP1424293 B1 EP 1424293B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flat
- packaging container
- film
- hose
- films
- 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
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 64
- 229920003023 plastic Polymers 0.000 title claims abstract description 7
- 239000004033 plastic Substances 0.000 title claims abstract description 7
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 10
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 10
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 5
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000000463 material Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 239000010408 film Substances 0.000 description 70
- 238000003466 welding Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000010410 layer Substances 0.000 description 11
- 239000002274 desiccant Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000011888 foil Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000004831 Hot glue Substances 0.000 description 5
- 239000004809 Teflon Substances 0.000 description 5
- 229920006362 TeflonĀ® Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 244000052616 bacterial pathogen Species 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002313 adhesive film Substances 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/008—Stiffening or reinforcing
-
- 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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/38—Articles or materials enclosed in two or more wrappers disposed one inside the other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2155/00—Flexible containers made from webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2155/00—Flexible containers made from webs
- B31B2155/002—Flexible containers made from webs by joining superimposed webs, e.g. with separate bottom webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2160/00—Shape of flexible containers
- B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2170/00—Construction of flexible containers
- B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined
- B31B2170/204—Construction of flexible containers having multi-layered walls, e.g. laminated or lined involving folding a web about an already tubular web
Definitions
- the invention relates to a packaging container made of plastic, consisting of a flat tube which is closed at least on one side and forms a bag-shaped container, wherein the flat tube outside the edge of two other flat films is surrounded, which at the longitudinal and transverse edges of the inner flat tube a Form edge overlap
- Packaging containers made of plastic which consist for example of a single-layer or multi-layer flat hose, are required for various types of substances in order to protect them from contamination or, in the case of granular materials, to be able to deliver them in a specific packaging size.
- packaging bags are used, which are made of a flat hose.
- a desiccant for example silica gel, calcium sulfate or the like.
- This is done, for example, with the aid of a perforated cover film, which is welded to cover the desiccant bag on the inner surface of the tubular film edge-shaped.
- the sealed at one end of the packaging bag is everted and on the now exposed inner surface of a desiccant bag and above a perforated cover sheet is placed and welded with its edge on the inner surface.
- a packaging bag which has only been welded at one end is used and a larger circular cut-out is incorporated and a previously perforated inner film and a second non-perforated outer film are welded from the outside to the edge of the cutout with the interposition of a desiccant.
- cover films extend only over a small area of the packaging container without increasing the tightness of the packaging container,
- British patent specification GB 515,014 discloses a packaging arrangement in which an inner flat hose is partially laminated from the outside with a flat film. In order to prevent the packaging container from tearing under high pressure, it is proposed to round out the corners of the packaging container, so that no acute-angled corners are created where the packaging container can tear.
- an aseptic bag which is suitable for the separation of liquids.
- This bag has another pocket within an outer pocket, the two pockets being separated by an air space. It is envisaged that the inner pocket is perforated to filter out individual particles from liquids.
- US Pat. No. 3,838,794 discloses an arrangement of two nested bags wherein a pressurized air space is provided between the bags.
- the pressurized air space serves to force liquid out of the inner bag to the outside.
- German patent application DE 196 00 530 a double bag arrangement is disclosed, in which a non-transparent tubular film packaging is arranged in a further, transparent tubular film packaging.
- This arrangement serves to store light-sensitive liquids, wherein the liquid penetrates from the outside into the transparent bag after opening the inner bag and thus the liquid level can be recognized by the transparent outer packaging.
- the invention is therefore based on the object to provide a packaging container which resists high internal pressure, is gas and aroma-tight and which has a high rigidity and is easier to fill.
- the packaging container according to the invention is based on the object to provide a packaging container available, which remains free after production of foreign particles and germs.
- a further object of the invention is to provide a packaging container which can not only be manufactured and transported free of foreign particles and germs, but can also be reliably re-welded.
- Yet another object of the invention is to provide a packaging material which can be safely wound in the closed state.
- a uniform outer film layer is placed over the entire width of the inner flat tube, so that it can be achieved that the inner flat tube can be welded from the outside through the outer film.
- This welding can be carried out over the entire width with the same temperature and a comparable heat flow, so that no uneven welding of the inner flat tube transversely to the machine direction occurs.
- the packaging container both a high rigidity, especially at the opening edge, a gas and aroma resistance, a high resistance to high internal pressures, as in the storage of many Overfilled filled packaging may occur, a particle and germ deficiency, even during storage, and also has a safe Aufwickelhus.
- the lamination is achieved that the heat flow through the composite layers in the welding of the inner tube is high enough that the inner tube, which has a higher melting temperature than the outer sheet material, high enough to weld the inner tube safely without that at this process dissolves the outer material.
- the inner flat hose can, if required, still be welded during production by welding through the outer film material, so that the inner flat hose remains largely free of germs and particles and is slit on filling in a filling machine on one side, wherein at the SchlitzrƤndem by the stiffness of the outer film layer no rolling effect occurs, so that a machine filling without special measures for opening edge stabilization are necessary.
- the inner flat tube can be re-welded with a generic welding machine, without cannulation or insufficient welding are expected. For filling the packaging bag described above, two methods are mainly used.
- connection of the inner flat tube with the outer flat films can in this case be produced by bonding by hot melt adhesive or welding due to heat, wherein for filling the inner flat tube both in the inner and the outer flat films, a filling opening is present, which are subsequently closed.
- the temperature for closing the inner flat tube or for laminating with the outer flat foil is preferably selected so that the temperature for laminating is lower than that for closing the flat tube.
- the marginal overlap is uniformly ensured and an undesirable displacement of the inner flat tube can not occur is provided that the inner flat tube and the outer flat films are glued or welded together. This ensures that the inner flat tube is firmly fixed in relation to the outer flat foil.
- the inner flat hose closed on one side in the form of individual bag-shaped containers in two outer two flat outer foils are spaced, wherein the flat films in the area between the inner bag-shaped flat hose touch.
- the inner flat tube is then sealed, for example, welded, and then additionally glued or welded the outer flat films in the overlapping area.
- the outer films can preferably consist of a laminated film or an aluminum foil.
- the inner flat tube and the outer flat films are made of a multilayer film, wherein the two-layer inner flat tube with an outer layer of LDPE (low density polyethylene) and an inner layer of HDPE (High Density Polyethylene) is prepared and the outer flat films of LDPE or a multilayer film are produced, whereby the inner flat tube with the outer flat films can be welded together by the action of temperature when the two LDPE films are opposite.
- the melting point is chosen so that the outer flat films are not damaged or blocked by the heat due to a higher melting temperature.
- the particular advantage of the plastic packaging container according to the invention is that the packaging bags are provided with an additional protective film, which can be gas-tight and airtight, for example, in the form that an overlapping edge region is created, which is a complete enclosure of the inner Flat hose allows.
- Another significant advantage is that a prefastening of the packaging container can be done and they are delivered as a roll, so that after a severing of the outer flat film individual packaging bags arise that have the aforementioned properties.
- FIG. 1 shows, in a plan view for better illustration, a flat tube 1 with a lower flat foil 2, which can be glued to one another, for example, or else welded together.
- the lower flat film 2 is dimensioned so that it projects beyond the edge region of the flat hose 1 on all sides and thus completely surrounds it.
- the inner flat hose 1 is closed in the embodiment shown on one side by a weld 3, while the opposite side has an opening 4, in which a Teflon slide 5 is inserted to prevent closure of the opening 4 during manufacture.
- multilayer films are used both as flat tube 1 and flat film 2, wherein the two-layer inner flat tube 1 is produced with an outer layer of LDPE and an inner layer of HDPE, while the outer flat film of LDPE or a multilayer film can be produced, the LDPA film opposite to the flat hose 1 comes to rest.
- the melting point is chosen so that the outer flat film 2 is not damaged or blocked by the effect of heat due to a higher melting temperature.
- a hotmelt adhesive can preferably be used.
- Figure 2 shows the arrangement of Figure 1 with an additional upper flat film 6, which comes to cover with the lower flat film 2 and in the illustration shown, however, is slightly shifted to the top right and additionally has a folded corner region 7 for improved presentation.
- Figure 3 shows a finished packaging container 10 with inner flat tube 1 and outer flat films 2, 6 after filling, wherein the inner flat tube 1 is closed on both sides by a weld 3, 8 and the outer flat films 2, 6 by welds 12, 13, 14 and 15 additional are closed.
- weld seams are dispensed with, at least in the case of the outer flat films 2, 6 and either an adhesive coating is used instead or a laminated flat film 2, 6 is used which connects to each other and to the inner flat hose 1 as a result of low heat action without special weld allows.
- weld seams are dispensed with, at least in the case of the outer flat films 2, 6 and either an adhesive coating is used instead or a laminated flat film 2, 6 is used which connects to each other and to the inner flat hose 1 as a result of low heat action without special weld allows.
- welds 12, 13, 14, 15 for the outer flat films 2, 6 and for the inner flat hose 1 with the welds 3, 11 is shown.
- Figure 4 and 5 shows in a side view and top view of the manufacturing process of the packaging container 10 according to the invention, wherein a prepared flat hose 1 is fed to a production line and simultaneously from supply rollers 16, 17, a lower and upper flat film 2, 6 is supplied in such a way that the flat tube. 1 spaced between the flat films 2, 6 comes to rest.
- pressure rollers 18, 19 By means of pressure rollers 18, 19, the adhesion of the outer flat films 2, 6 on the flat hose 1 can be effected here, for example when using an adhesive film.
- a weld is preferred is a longitudinal welding by a weld 12 by means of an upper and lower heating element 20, 21 and the production of a transverse weld 14 by two further heating rods 22, 23.
- a first indicated production variant is based on a separation of the weld seam 14, so that individual packaging containers 10 are produced, which are fed to a packaging machine.
- a separation of the individual packaging containers 10 is dispensed with and they are wound up on a roll which is further used in a packaging installation. Within the packaging machine, it is thus possible to handle individual packaging containers 10 and to fill them after cutting through the weld seam 14.
- the welding device it is possible to coat the lower and upper flat films 2, 6 with an adhesive film facing the flat hose 1, so that the two outer flat films 2, 6 adhere directly to the flat top of the flat tube 1 and lie on each other in the edge region.
- a hot melt adhesive it is possible to use a hot melt adhesive.
- a connection of the inner flat hose 1 with the outer flat films 2 can be effected by a large-surface temperature action, wherein the connection is made with a suitable temperature selection, without the inner flat hose 1 is closed on all sides.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Bag Frames (AREA)
- Packages (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Wrappers (AREA)
Abstract
Description
Die Erfindung betrifft einen VerpackungsbehƤlter aus Kunststoff, bestehend aus einem Flachschlauch, der zumindest auf einer Seite verschlossen ist und einen beutelfƶrmigen BehƤlter bildet, wobei der Flachschlauch auĆen von zwei weiteren Flachfolien randĆ¼bergreifend umgeben ist, welche an den LƤngs- und Querkanten des innen liegenden Flachschlauchs eine randseitige Ćberlappung ausbildenThe invention relates to a packaging container made of plastic, consisting of a flat tube which is closed at least on one side and forms a bag-shaped container, wherein the flat tube outside the edge of two other flat films is surrounded, which at the longitudinal and transverse edges of the inner flat tube a Form edge overlap
VerpackungsbehƤlter aus Kunststoff, die beispielsweise aus einem ein- oder mehrschichtigen Flachschlauch bestehen, werden fĆ¼r verschiedene Arten von Stoffen benƶtigt, um diese vor Verunreinigungen zu schĆ¼tzen oder im Fall von granulatfƶrmigen Stoffen diese in einer bestimmten VerpackungsgrƶĆe ausliefern zu kƶnnen. Insbesondere bei chemischen oder pharmazeutischen Produkten werden hierbei VerpackungssƤcke verwendet, die aus einem Flachschlauch gefertigt werden. Um diese Stoffe trocken zu halten ist es Ć¼blich auf der InnenflƤche des Sacks einen mit einem Trockenmittel, zum Beispiel Kieselgel, Calciumsulfat oder dergleichen gefĆ¼llten Beutel zu fixieren. Dies geschieht beispielsweise mit Hilfe einer perforierten Abdeckfolie, die unter Abdeckung des Trockenmittelbeutels auf der InnenflƤche der Schlauchfolie randfƶrmig aufgeschweiĆt wird. Durch eine vorhandene Perforation steht der zum Beispiel aus porƶsen Papier, Filz oder dergleichen bestehende Beutel beziehungsweise das Trockenmittel mit dem Innenraum des Verpackungsbeutels in Verbindung, um diesen trocken oder auf einen bestimmten Trocknungsgrad zu halten.Packaging containers made of plastic, which consist for example of a single-layer or multi-layer flat hose, are required for various types of substances in order to protect them from contamination or, in the case of granular materials, to be able to deliver them in a specific packaging size. In particular, in chemical or pharmaceutical products packaging bags are used, which are made of a flat hose. In order to keep these substances dry, it is customary to fix on the inner surface of the bag a bag filled with a desiccant, for example silica gel, calcium sulfate or the like. This is done, for example, with the aid of a perforated cover film, which is welded to cover the desiccant bag on the inner surface of the tubular film edge-shaped. By an existing perforation of existing example of porous paper, felt or the like existing bag or the desiccant with the interior of the packaging bag in combination to keep it dry or to a certain degree of dryness.
Zur Fixierung des Trockenmittelbeutels auf der InnenflƤche des Sacks sind hierbei verschiedene Verfahren bekannt. Bei einer Methode wird der an einem Ende verschweiĆte Verpackungssack umgestĆ¼lpt und auf die nun freiliegende InnenflƤche wird ein Trockenmittelbeutel sowie darĆ¼ber eine perforierte Abdeckfolie gelegt und mit ihrem Rand auf der InnenflƤche verschweiĆt. In einem zweiten Verfahren wird ein nur an einem Ende verschweiĆter Verpackungssack verwendet und ein grƶĆerer kreisrunder Ausschnitt eingearbeitet und eine zuvor perforierte Innenfolie sowie eine zweite nicht perforierte AuĆenfolie unter Zwischenlage eines Trockenmittels von auĆen am Rand des Ausschnitts verschweiĆt. In beiden FƤllen besteht somit eine Verbindung zwischen dem Trockenmittelbeutel und dem Innenraum des VerpackungsbehƤlters. Derartige Abdeckfolien erstrecken sich aber nur Ć¼ber einen kleinen Bereich des VerpackungsbehƤlters ohne die Dichtigkeit des VerpackungsbehƤlters zu erhƶhen,For fixing the desiccant bag on the inner surface of the bag in this case various methods are known. In one method, the sealed at one end of the packaging bag is everted and on the now exposed inner surface of a desiccant bag and above a perforated cover sheet is placed and welded with its edge on the inner surface. In a second method, a packaging bag which has only been welded at one end is used and a larger circular cut-out is incorporated and a previously perforated inner film and a second non-perforated outer film are welded from the outside to the edge of the cutout with the interposition of a desiccant. In both cases there is thus a connection between the desiccant bag and the interior of the packaging container. However, such cover films extend only over a small area of the packaging container without increasing the tightness of the packaging container,
In der britischen Patentschrift GB 515,014 wird eine Verpackungsanordnung offenbart, in welcher ein innerer Flachschlauch von auĆen partiell mit einer Flachfolie kaschiert wird. Um zu verhindern, dass der VerpackungsbehƤlter unter hohen DrĆ¼cken reiĆt, wird vorgeschlagen, die Ecken des VerpackungsbehƤlters auszurunden, sodass keine spitzwinkligen Ecken entstehen, an dem der VerpackungsbehƤlter reiĆen kann.British patent specification GB 515,014 discloses a packaging arrangement in which an inner flat hose is partially laminated from the outside with a flat film. In order to prevent the packaging container from tearing under high pressure, it is proposed to round out the corners of the packaging container, so that no acute-angled corners are created where the packaging container can tear.
In der EP 0 778 202 wird eine aseptische Tasche offenbart, die zur Separation von FlĆ¼ssigkeiten geeignet ist. Diese Tasche weist eine weitere Tasche innerhalb einer ƤuĆeren Tasche auf, wobei die beiden Taschen durch einen Luftraum voneinander getrennt sind. Dabei ist vorgesehen, dass die innere Tasche perforiert ist, um aus FlĆ¼ssigkeiten einzelne Partikel auszufiltrieren.In EP 0 778 202 an aseptic bag is disclosed which is suitable for the separation of liquids. This bag has another pocket within an outer pocket, the two pockets being separated by an air space. It is envisaged that the inner pocket is perforated to filter out individual particles from liquids.
In dem US-Patent US 3,838,794 wird eine Anordnung aus zwei ineinander liegenden Beuteln offenbart, wobei zwischen den Beuteln ein unter Druck stehender Luftraum vorgehalten wird. Der unter Druck gehaltene Luftraum dient dazu, FlĆ¼ssigkeit aus der inneren TĆ¼te nach auĆen zu pressen.US Pat. No. 3,838,794 discloses an arrangement of two nested bags wherein a pressurized air space is provided between the bags. The pressurized air space serves to force liquid out of the inner bag to the outside.
In der deutschen Offenlegungsschrift DE 196 00 530 wird eine DoppeltĆ¼tenanordnung offenbart, in welcher eine nicht transparente Schlauchfolienverpackung in einer weiteren, transparenten Schlauchfolienverpackung angeordnet ist. Diese Anordnung dient zur Aufbewahrung von lichtempfindlichen FlĆ¼ssigkeiten, wobei die FlĆ¼ssigkeit nach Ćffnen der InnentĆ¼te von auĆen in die transparente TĆ¼te eindringt und somit kann der FlĆ¼ssigkeitsstand durch die transparente AuĆenverpackung erkannt werden.In the German patent application DE 196 00 530 a double bag arrangement is disclosed, in which a non-transparent tubular film packaging is arranged in a further, transparent tubular film packaging. This arrangement serves to store light-sensitive liquids, wherein the liquid penetrates from the outside into the transparent bag after opening the inner bag and thus the liquid level can be recognized by the transparent outer packaging.
FĆ¼r viele der zu verpackenden Stoffe wird aber verlangt, dass das Innere des VerpackungsbehƤlters vollkommen steril und frei von Fremdpartikeln ist. Weitergehende Forderungen verlangen sogar eine Gasdichtigkeit des BehƤlters, damit Fremdstoffe weder eindringen noch entweichen kƶnnen. Hierbei ist sicherzustellen, dass der zur Aufnahme vorgesehene VerpackungsbehƤlter weiterhin vollkommen steril und frei von Fremdpartikeln ist. Weiterhin hat sich gezeigt, dass bei mehrschichtigen Folien an den offenen Enden des VerpackungsbehƤlters ein Rolleffekt entsteht, der zu einer Verformung nach innen fĆ¼hrt und somit eine BefĆ¼llung erschwert.For many of the substances to be packaged, however, it is required that the interior of the packaging container is completely sterile and free of foreign particles. Further demands even require a gas-tightness of the container so that foreign substances can neither penetrate nor escape. It must be ensured that the packaging container provided for receiving is still completely sterile and free of foreign particles. Farther It has been shown that in multilayer films at the open ends of the packaging container, a rolling effect is produced, which leads to a deformation inward and thus complicates filling.
Der Erfindung liegt daher die Aufgabe zugrunde, einen VerpackungsbehƤlter zu schaffen, welcher einem hohen Innendruck widersteht, gas- und aromadicht ist und welcher eine hohe Steifigkeit aufweist und leichter zu befĆ¼llen ist.The invention is therefore based on the object to provide a packaging container which resists high internal pressure, is gas and aroma-tight and which has a high rigidity and is easier to fill.
Des Weiteren liegt dem erfindungsgemƤĆen VerpackungsbehƤlter die Aufgabe zu Grunde, einen VerpackungsbehƤlter zur VerfĆ¼gung zustellen, welcher nach Herstellung frei von fremden Partikeln und Keimen bleibt.Furthermore, the packaging container according to the invention is based on the object to provide a packaging container available, which remains free after production of foreign particles and germs.
Eine weitere Aufgabe der Erfindung Ist es, einen VerpackungsbehƤlter zur VerfĆ¼gung zustellen, der nicht nur frei von fremden Partikeln und Keimen hergestellt und transportiert werden kann, sondern auch verlƤsslich wiederverschweiĆt werden kann.A further object of the invention is to provide a packaging container which can not only be manufactured and transported free of foreign particles and germs, but can also be reliably re-welded.
Noch eine Aufgabe der Erfindung ist es, ein Verpackungsmaterial zur VerfĆ¼gung zu stellen, welches im verschlossenen Zustand sicher aufgewickelt werden kann.Yet another object of the invention is to provide a packaging material which can be safely wound in the closed state.
ErfindungsgemĆ¤Ć ist zur Lƶsung der Aufgabe vorgesehen, dass der Flachschlauch mit den Flachfolien vollflƤchig kaschiert ist. Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den UnteransprĆ¼chen.According to the invention, it is provided to solve the problem that the flat tube with the flat films is laminated over the entire surface. Further advantageous embodiments of the invention will become apparent from the dependent claims.
Durch die Verwendung einer weiteren Flachfolie mit randseitiger Ćberlappung und unterschiedlichen physikalischen und chemischen Eigenschaften wird sichergestellt, dass der innenliegende Flachschlauch, welcher zur Aufnahme der zu transportierenden Stoffe vorgesehen ist, zusƤtzlich so verschlossen werden kann, dass die dem Verpackungsmaterial vorgegebenen Randbedingungen, wie luft- und gasdichte sowie Aroma- und UV-Schutz etc. gewƤhrleistet sind. Hierzu ist es notwendig, einen VerpackungsbehƤlter zur VerfĆ¼gung zustellen, der gegebenenfalls geschlossen ausgeliefert wird. Durch die gewƤhlte randĆ¼bergreifende VerschweiĆung mit FahnenĆ¼berstand wird ferner gewƤhrleistet, dass die Dicke des Flachschlauches bei dem erfindungsgemƤĆen VerpackungsbehƤlter Ć¼ber die gesamte Breite der Flachfolie nahe zur gleich hoch ist und somit ist diese Flachfolie auch unter Ausbildung einer stabilen Wicklung aufwickelbar. Im erfindungsgemƤĆen VerpackungsbehƤlter ist Ć¼ber die gesamte Breite des innenliegenden Flachschlauches eine gleichstarke ƤuĆere Folienschicht gelegt, sodass erreicht werden kann, dass der innenliegende Flachschlauch von auĆen durch die AuĆenfolie hindurch verschweiĆt werden kann. Diese VerschweiĆung kann auf der gesamten Breite mit der gleichen Temperatur und einem vergleichbaren WƤrmefluss erfolgen, sodass keine ungleichmƤĆige VerschweiĆung des inneren Flachschlauches quer zu Maschinenrichtung auftritt.By using a further flat film with marginal overlap and different physical and chemical properties ensures that the inner flat hose, which is intended to accommodate the substances to be transported, can also be closed so that the packaging material predetermined boundary conditions, such as air and gastight as well as aroma and UV protection etc. are guaranteed. For this purpose, it is necessary to provide a packaging container available, which is optionally delivered closed. By the selected edge-to-edge welding with flag projection is further ensured that the thickness of the flat tube in the packaging container according to the invention over the entire width of the flat film is close to the same height and thus this flat film can be wound up to form a stable winding. In the packaging container according to the invention, a uniform outer film layer is placed over the entire width of the inner flat tube, so that it can be achieved that the inner flat tube can be welded from the outside through the outer film. This welding can be carried out over the entire width with the same temperature and a comparable heat flow, so that no uneven welding of the inner flat tube transversely to the machine direction occurs.
Erst durch die erfindungsgemƤĆe Kaschierung des innenliegenden Flachschlauches mit der auĆenliegenden Folie und der erfindungsgemƤĆen Folienanordnung wird erreicht, dass der VerpackungsbehƤlter sowohl eine hohe Steifigkeit, besonders am Ćffnungsrand, eine Gas- und Aromadichtigkeit, eine hohe Widerstandskraft gegenĆ¼ber hohen InnendrĆ¼cken, wie er bei der Lagerung vieler Ć¼bereinanderliegender gefĆ¼llter Verpackungen auftreten kann, eine Partikel- und Keimarmut, auch bei Lagerung, und auch eine sichere Aufwickelbarkeit aufweist. Speziell durch die Kaschierung wird erreicht, dass der WƤrmefluss durch die Verbundlagen bei der VerschweiĆung des Innenschlauches hoch genug ist, dass der Innenschlauch, der eine hƶhere Schmelztemperatur als das ƤuĆere Folienmaterial aufweist, hoch genug ist, um den Innenschlauch sicher zu verschweiĆen ohne, dass bei diesem Vorgang das AuĆenmaterial zerflieĆt. In besonderem MaĆe wird durch die erfindungsgemƤĆe Lagenanordnung und -kaschierung erreicht, dass der innere Flachschlauch bei Bedarf noch wƤhrend der Herstellung durch eine VerschweiĆung durch das ƤuĆere Folienmaterial verschweiĆt werden kann, sodass der innere Flachschlauch weitgehend keim- und partikelfrei bleibt und bei BefĆ¼llung in einer BefĆ¼llungsmaschine an einer Seite aufgeschlitzt wird, wobei an den SchlitzrƤndem durch die Steifigkeit der ƤuĆeren Folienlage kein Rolleffekt auftritt, sodass eine maschinelle BefĆ¼llung ohne besondere MaĆnahmen zur Ćffnungsrandstabilisierung notwendig sind. Des Weiteren kann der innere Flachschlauch mit einer gattungsgemƤĆen SchweiĆmaschine wieder verschweiĆt werden, ohne dass KanĆ¼lenbildungen oder unzureichende VerschweiĆungen zu erwarten sind. Zum BefĆ¼llen des oben beschriebenen Verpackungsbeutels kommen hauptsƤchlich zwei Verfahren zur Anwendung. ZunƤchst besteht die Mƶglichkeit eine direkte BefĆ¼llung eines Flachschlauchs von einer Vorratsrolle in einem Verpackungsautomaten vorzunehmen. Eine weitere Mƶglichkeit besteht darin, die BefĆ¼llung eines einzelnen vorkonfektionierten Flachbeutels in einer Verpackungsanlage vorzusehen. In beiden FƤllen tritt normalerweise die Problematik auf, dass der Verbundflachschlauch beziehungsweise Verbundflachbeutel einen relativ starken Rolleffekt an der offenen Seite nach innen aufweist, der beim BefĆ¼llvorgang hinderlich sein kann, wenn dieser nicht sogar unmƶglich wird. Durch das erfindungsgemƤĆe Verfahren wird Ć¼berraschender Weise der Vorteil erreicht, dass der Rolleffekt bei einer Vorkonfektionierung in der erfindungsgemƤĆen Art nicht eintritt und eine optimale BefĆ¼llung in einem Verpackungsautomaten mƶglich wird.Only through the lining according to the invention of the inner flat tube with the outer film and the film assembly according to the invention is achieved that the packaging container both a high rigidity, especially at the opening edge, a gas and aroma resistance, a high resistance to high internal pressures, as in the storage of many Overfilled filled packaging may occur, a particle and germ deficiency, even during storage, and also has a safe Aufwickelbarkeit. Specifically, by the lamination is achieved that the heat flow through the composite layers in the welding of the inner tube is high enough that the inner tube, which has a higher melting temperature than the outer sheet material, high enough to weld the inner tube safely without that at this process dissolves the outer material. In particular, it is achieved by means of the layer arrangement and lamination according to the invention that the inner flat hose can, if required, still be welded during production by welding through the outer film material, so that the inner flat hose remains largely free of germs and particles and is slit on filling in a filling machine on one side, wherein at the SchlitzrƤndem by the stiffness of the outer film layer no rolling effect occurs, so that a machine filling without special measures for opening edge stabilization are necessary. Furthermore, the inner flat tube can be re-welded with a generic welding machine, without cannulation or insufficient welding are expected. For filling the packaging bag described above, two methods are mainly used. First, there is the possibility to make a direct filling of a flat hose from a supply roll in a packaging machine. Another possibility is to provide the filling of a single prefabricated flat bag in a packaging system. In both cases, the problem usually arises that the composite flat hose or composite flat bag has a relatively strong rolling effect on the open side inwards, which can be a hindrance during the filling process, if this is not even impossible. The method according to the invention surprisingly achieves the advantage that the roll effect does not occur during prefabrication in the type according to the invention and optimum filling in a packaging machine becomes possible.
Um sicherzustellen, dass der innere AufnahmebehƤlter vollstƤndig von der ƤuĆeren Flachfolie umgeben ist, wird eine randseitige Ćberlappung ausgebildet. Die Verbindung des inneren Flachschlauchs mit den ƤuĆeren Flachfolien kann hierbei durch eine Verklebung mittels Schmelzklebers oder VerschweiĆung aufgrund von WƤrmeeinwirkung hergestellt werden, wobei zum BefĆ¼llen des inneren Flachschlauchs sowohl in dem inneren als auch den ƤuĆeren Flachfolien eine EinfĆ¼llƶffnung vorhanden ist, die nachtrƤglich verschlieĆbar sind. Vorzugsweise wird hierbei die Temperatur zum VerschlieĆen des inneren Flachschlauchs beziehungsweise zum Kaschieren mit der ƤuĆeren Flachfolie so gewƤhlt, dass die Temperatur zum Kaschieren niedriger liegt, als die zum VerschlieĆen des Flachschlauchs. Soweit jedoch besondere Kunststoffmaterialien verwendet werden, die mƶglicherweise annƤhernd gleiche Schmelztemperaturbereiche aufweisen, kann auf der Seite wo der BehƤlter zum BefĆ¼llen offen bleiben soll beispielsweise ein Teflonschieber eingeschoben werden, der eine Verbindung des inneren Flachschlauchs beziehungsweise eine Verbindung der ƤuĆeren Flachfolien verhindert. In Ƥhnlicher Weise kann bei der Verwendung eines Schmelzklebers vorgegangen werden.To ensure that the inner receptacle is completely surrounded by the outer flat film, a marginal overlap is formed. The connection of the inner flat tube with the outer flat films can in this case be produced by bonding by hot melt adhesive or welding due to heat, wherein for filling the inner flat tube both in the inner and the outer flat films, a filling opening is present, which are subsequently closed. In this case, the temperature for closing the inner flat tube or for laminating with the outer flat foil is preferably selected so that the temperature for laminating is lower than that for closing the flat tube. However, as far as special plastic materials are used, which may have approximately the same melting temperature ranges, can be inserted on the side where the container for filling open, for example, a Teflon slider, a connection of the inner flat hose or a compound of prevents outer flat films. Similarly, the use of a hot melt adhesive can be used.
Damit die randseitige Ćberlappung gleichmƤĆig gewƤhrleistet ist und eine unerwĆ¼nschte Verschiebung des inneren Flachschlauchs nicht eintreten kann ist vorgesehen, dass der innere Flachschlauch und die ƤuĆeren Flachfolien miteinander verklebt oder verschweiĆt sind. Somit wird sichergestellt, dass der innere Flachschlauch gegenĆ¼ber dem ƤuĆeren Flachfolien fest fixiert ist.Thus, the marginal overlap is uniformly ensured and an undesirable displacement of the inner flat tube can not occur is provided that the inner flat tube and the outer flat films are glued or welded together. This ensures that the inner flat tube is firmly fixed in relation to the outer flat foil.
Zur kostengĆ¼nstigen maschinellen Herstellung der erfindungsgemƤĆen VerpackungsbehƤlter ist vorgesehen, dass der innere einseitig verschlossene Flachschlauch in Form von einzelnen beutelfƶrmigen BehƤltern in zwei beidseitigen ƤuĆeren Flachfolien beabstandet aufgenommen sind, wobei sich die Flachfolien im Bereich zwischen dem inneren beutelfƶrmigen Flachschlauch berĆ¼hren. Somit wird eine vollstƤndige Ćberlappung der ƤuĆeren Flachfolien um den inneren Flachschlauch gewƤhrleistet und es besteht darĆ¼ber hinaus die Mƶglichkeit derartig ausgebildete VerpackungsbehƤlter als Rollenware herzustellen, die vorkonfektioniert ist und zum Gebrauch einzelner VerpackungsbehƤlter nach Durchtrennen der ƤuĆeren Flachfolie verwendet werden kƶnnen. Nach dem BefĆ¼llen wird sodann die innere Schlauchfolie verschlossen, beispielsweise verschweiĆt, und anschlieĆend die ƤuĆeren Flachfolien im Ćberlappungsbereich zusƤtzlich verklebt oder verschweiĆt. Damit keine Gasdiffusion stattfinden kann, kƶnnen die ƤuĆeren Folien vorzugsweise aus einer kaschierten Folie oder einer Aluminiumfolie bestehen.For cost-effective mechanical production of packaging containers according to the invention it is provided that the inner flat hose closed on one side in the form of individual bag-shaped containers in two outer two flat outer foils are spaced, wherein the flat films in the area between the inner bag-shaped flat hose touch. Thus, a complete overlap of the outer flat films is ensured to the inner flat tube and there is also the possibility to produce such trained packaging container as roll goods, which is pre-assembled and can be used for the use of individual packaging container after cutting the outer flat film. After filling, the inner tubular film is then sealed, for example, welded, and then additionally glued or welded the outer flat films in the overlapping area. So that no gas diffusion can take place, the outer films can preferably consist of a laminated film or an aluminum foil.
In besonderer Ausgestaltung der Erfindung ist vorgesehen, dass der innere Flachschlauch und die ƤuĆeren Flachfolien aus einer mehrschichtigen Folie bestehen, wobei der zweischichtige innere Flachschlauch mit einer AuĆenschicht aus LDPE (Low Density PolyƤthylen) und einer Innenschicht aus HDPE (High Density PolyƤthylen) hergestellt wird und die ƤuĆeren Flachfolien aus LDPE oder einer mehrschichtigen Folie hergestellt werden, wodurch der innere Flachschlauch mit den ƤuĆeren Flachfolien durch Temperatureinwirkung miteinander verschweiĆt werden kann, wenn die beiden LDPE-Folien gegenĆ¼ber liegen. Hierbei wird der Schmelzpunkt so gewƤhlt, dass die ƤuĆeren Flachfolien durch die WƤrmeeinwirkung aufgrund einer hƶheren Schmelztemperatur nicht beschƤdigt oder verblockt werden.In a particular embodiment of the invention, it is provided that the inner flat tube and the outer flat films are made of a multilayer film, wherein the two-layer inner flat tube with an outer layer of LDPE (low density polyethylene) and an inner layer of HDPE (High Density Polyethylene) is prepared and the outer flat films of LDPE or a multilayer film are produced, whereby the inner flat tube with the outer flat films can be welded together by the action of temperature when the two LDPE films are opposite. Here, the melting point is chosen so that the outer flat films are not damaged or blocked by the heat due to a higher melting temperature.
Der besondere Vorteil des erfindungsgemƤĆen VerpackungsbehƤlters aus Kunststoff besteht darin, dass die Verpackungsbeutel mit einer zusƤtzlichen Schutzfolie, die beispielsweise gas- und luftdicht ausgebildet sein kann, versehen werden, und zwar in der Form, dass ein Ć¼berlappender Randbereich entsteht, der eine vollstƤndige Einfassung des innenliegenden Flachschlauchs ermƶglicht. Ein weiterer wesentlicher Vorteil besteht darin, dass eine Vorkonfektionierung der VerpackungsbehƤlter erfolgen kann und diese als Rollenware ausgeliefert werden, sodass nach einem Durchtrennen der ƤuĆeren Flachfolie einzelne Verpackungsbeutel entstehen, die die vorgenannten Eigenschaften aufweisen.The particular advantage of the plastic packaging container according to the invention is that the packaging bags are provided with an additional protective film, which can be gas-tight and airtight, for example, in the form that an overlapping edge region is created, which is a complete enclosure of the inner Flat hose allows. Another significant advantage is that a prefastening of the packaging container can be done and they are delivered as a roll, so that after a severing of the outer flat film individual packaging bags arise that have the aforementioned properties.
Die Erfindung wird im Weiteren anhand der Figuren nƤher erlƤutert.The invention will be explained in more detail below with reference to FIGS.
Es zeigt
Figur 1- in einer Draufsicht einen Flachschlauch mit unterer Flachfolie und einem eingeschobenen Teflonschieber wƤhrend des Herstellungsprozesses,
Figur 2- einen erfindungsgemƤĆen VerpackungsbehƤlter gemƤĆ
Figur 1, bestehend aus dem Flachschlauch mit beidseitigen Flachfolien, wobei die obere Flachfolie zur besseren Darstellung in einem Eckbereich umgeschlagen und leicht verschoben ist, Figur 3- einen erfindungsgemƤĆen VerpackungsbehƤlter, bestehend aus einem Flachschlauch mit zwei auĆen liegenden Flachfolien, wobei der Flachschlauch beidseitig durch WƤrmeeinwirkung verschlossen ist und die ƤuĆeren Flachfolien einseitig verschlossen sind,
Figur 4- einen schematischen Ablaufplan fĆ¼r die Herstellung der VerpackungsbehƤlter und
Figur 5- eine Draufsicht gemĆ¤Ć Figur 4 wƤhrend des Herstellungsprozesses.
- FIG. 1
- in a plan view a flat tube with lower flat foil and an inserted Teflon slider during the manufacturing process,
- FIG. 2
- a packaging container according to the invention according to Figure 1, consisting of the flat tube with double-sided flat films, the upper flat film is folded over for better representation in a corner region and slightly shifted,
- FIG. 3
- a packaging container according to the invention, consisting of a flat tube with two outer flat films, wherein the flat tube is closed on both sides by the action of heat and the outer flat films are closed on one side,
- FIG. 4
- a schematic flow chart for the production of packaging containers and
- FIG. 5
- a plan view of Figure 4 during the manufacturing process.
Figur 1 zeigt in einer Draufsicht zur besseren Veranschaulichung einen Flachschlauch 1 mit einer unteren Flachfolie 2, die beispielsweise miteinander verklebt oder aber auch verschweiĆt sein kƶnnen. Die untere Flachfolie 2 ist so bemessen, dass sie den Randbereich des Flachschlauchs 1 allseitig Ć¼berragt und diesen somit vollstƤndig umgibt. Der innere Flachschlauch 1 ist im gezeigten AusfĆ¼hrungsbeispiel einseitig durch eine SchweiĆnaht 3 verschlossen, wƤhrend die gegenĆ¼ber liegende Seite eine Ćffnung 4 aufweist, in der ein Teflonschieber 5 eingeschoben ist, um wƤhrend der Fertigung ein VerschlieĆen der Ćffnung 4 zu verhindern. Vorzugsweise werden sowohl als Flachschlauch 1 und Flachfolie 2 mehrschichtige Folien eingesetzt, wobei der zweischichtige innere Flachschlauch 1 mit einer AuĆenschicht aus LDPE und einer Innenschicht aus HDPE hergestellt wird, wƤhrend die ƤuĆere Flachfolie aus LDPE oder einer mehrschichtigen Folie hergestellt werden kann, deren LDPA-Folie gegenĆ¼ber der des Flachschlauchs 1 zu liegen kommt. Hierdurch besteht beispielsweise die Mƶglichkeit durch Temperatureinwirkung sowohl den inneren Flachschlauch 1 als auch die ƤuĆere Flachfolie 2 miteinander zur Fixierung zu verbinden. Vorzugsweise wird der Schmelzpunkt hierbei so gewƤhlt, dass die ƤuĆere Flachfolie 2 durch die WƤrmeeinwirkung aufgrund einer hƶheren Schmelztemperatur nicht beschƤdigt oder verblockt wird. Alternativ besteht die Mƶglichkeit, dass anstelle einer Mehrschichtfolie eine solche mit Klebeschicht verwendet wird, sodass der innere Flachschlauch 1 und die ƤuĆeren Flachfolien 2 wƤhrend der Fertigung vollflƤchig miteinander verklebt sind und somit der innere Flachschlauch in seiner Lage gegenĆ¼ber der ƤuĆeren Flachfolie 2 festgelegt ist. Hierbei kann vorzugsweise ein Schmelzkleber eingesetzt werden.FIG. 1 shows, in a plan view for better illustration, a
Figur 2 zeigt die Anordnung gemĆ¤Ć Figur 1 mit einer zusƤtzlichen oberen Flachfolie 6, die zur Deckung mit der unteren Flachfolie 2 kommt und in der gezeigten Darstellung jedoch leicht nach rechts oben verschoben ist und zusƤtzlich einen umgeklappten Eckbereich 7 zur verbesserten Darstellung aufweist.Figure 2 shows the arrangement of Figure 1 with an additional upper
Figur 3 zeigt einen fertigen VerpackungsbehƤlter 10 mit innerem Flachschlauch 1 und ƤuĆeren Flachfolien 2, 6 nach dem BefĆ¼llen, wobei der innere Flachschlauch 1 beidseitig durch eine SchweiĆnaht 3, 8 verschlossen ist und die ƤuĆeren Flachfolien 2, 6 durch SchweiĆnƤhte 12, 13, 14 und 15 zusƤtzlich verschlossen sind. Alternativ besteht die Mƶglichkeit, dass auf die SchweiĆnƤhte zumindest bei den ƤuĆeren Flachfolien 2, 6 verzichtet wird und stattdessen entweder eine Klebebeschichtung verwendet wird oder aber eine kaschierte Flachfolie 2, 6 verwendet wird, die durch geringe WƤrmeeinwirkung eine Verbindung miteinander und mit dem inneren Flachschlauch 1 ohne besondere SchweiĆnaht ermƶglicht. Von den verschiedenen Varianten ist nur die mit SchweiĆnƤhten 12, 13, 14, 15 fĆ¼r die ƤuĆeren Flachfolien 2, 6 sowie fĆ¼r den inneren Flachschlauch 1 mit den SchweiĆnƤhten 3, 11 dargestellt.Figure 3 shows a
Figur 4 und 5 zeigt in einer Seitenansicht beziehungsweise Draufsicht den Fertigungsprozess der erfindungsgemƤĆen VerpackungsbehƤlter 10, wobei ein vorbereiteter Flachschlauch 1 einer FertigungsstraĆe zugefĆ¼hrt wird und gleichzeitig von Vorratsrollen 16, 17 eine untere und obere Flachfolie 2, 6 in derart zugefĆ¼hrt wird, dass der Flachschlauch 1 beabstandet zwischen den Flachfolien 2, 6 zu liegen kommt. Mittels Andruckrollen 18, 19 kann hierbei beispielsweise bei Verwendung einer Klebefolie das Anhaften der ƤuĆeren Flachfolien 2, 6 auf dem Flachschlauch 1 bewirkt werden. Soweit jedoch eine SchweiĆnaht vorgezogen wird erfolgt eine LƤngsverschweiĆung durch eine SchweiĆnaht 12 mittels eines oberen und unteren Heizstabes 20, 21 und die Herstellung einer querliegenden SchweiĆnaht 14 durch zwei weitere HeizstƤbe 22, 23. WƤhrend der VerschweiĆung wird zum spƤteren BefĆ¼llen der VerpackungsbehƤlter 10 in die vorhandene Ćffnung ein Teflonschieber 5 oder ein Teflonstreifen eingelegt, der nach dem VerschweiĆen entfernt werden kann. Somit entsteht ein einseitig offener VerpackungsbehƤlter 10, der nach dem BefĆ¼llen durch weitere SchweiĆvorgƤnge verschlossen wird. Eine erste aufgezeigte Herstellungsvariante geht im Weiteren von einer Durchtrennung der SchweiĆnaht 14 aus, sodass einzelne VerpackungsbehƤlter 10 entstehen, die einer Verpackungsmaschine zugefĆ¼hrt werden. Alternativ besteht die Mƶglichkeit, dass auf eine Durchtrennung der einzelnen VerpackungsbehƤlter 10 verzichtet wird und diese auf eine Rolle aufgewickelt werden, die in eine Verpackungsanlage weiter verwendet wird. Innerhalb der Verpackungsmaschine besteht so die Mƶglichkeit einzelne VerpackungsbehƤlter 10 abzuwickeln und nach Durchtrennen der SchweiĆnaht 14 zu BefĆ¼llen.Figure 4 and 5 shows in a side view and top view of the manufacturing process of the
Alternativ besteht die Mƶglichkeit anstelle der SchweiĆvorrichtung die untere und obere Flachfolie 2, 6 mit einer dem Flachschlauch 1 zugewandten Klebefolie zu beschichten, sodass die beiden ƤuĆeren Flachfolien 2, 6 unmittelbar auf der flachen Oberseite des Flachschlauchs 1 haften und im Randbereich aufeinander liegen. Alternativ besteht die Mƶglichkeit einen Schmelzkleber einzusetzen. Im Falle der Verwendung einer kaschierten Folie mit Schmelzkleber kann durch eine groĆflƤchige Temperatureinwirkung eine Verbindung des inneren Flachschlauchs 1 mit den ƤuĆeren Flachfolien 2 bewirkt werden, wobei bei geeigneter Temperaturwahl die Verbindung hergestellt wird, ohne dass der innere Flachschlauch 1 allseitig verschlossen wird. Zu diesem Zweck ist es erforderlich, dass der Flachschlauch 1 zumindest einseitig vorher verschweiĆt wird. Nach dem BefĆ¼llen des VerpackungsbehƤlters 1 kann durch erhƶhte Temperatureinwirkung im EinfĆ¼llbereich des VerpackungsbehƤlters 1 ein VerschlieĆen des inneren Flachschlauchs 1 sowie der ƤuĆeren Flachfolien 2, 6 erreicht werden.Alternatively, instead of the welding device, it is possible to coat the lower and upper
Claims (7)
- Packaging container (10) made of plastics material, consisting of a flat hose (1), which is sealed at least on one side and forms a bag-shaped container, the flat hose (1) being surrounded on the outside by two further flat films (2, 6) overlapping the edge, which form an edge-side overlap on the longitudinal and transverse rims of the inner flat hose (1), characterised in that the flat hose (1) is covered all-over by the flat films.
- Packaging container according to claim 1, characterised in that the inner flat hose (1) and the further flat films (2, 6) have a corresponding filling opening (4) and can be sealed after filling by at least one, preferably two, separate connecting seams, for example adhesive or weld seams (13, 18).
- Packaging container according to claim 1 or 2, characterised in that the inner flat hose (1), which is sealed on one side, in the form of individual bag-shaped containers, spaced apart, is received in two outer flat films (2, 6) on either side, the flat films (2, 6) touching one another in the region between the inner bag-shaped containers.
- Packaging container according to one or more of claims 1 to 3, characterised in that a plurality of containers are preassembled as rolled goods and can be used, after severing of the outer flat film (2, 6), as individual containers.
- Packaging container according to one or more of claims 1 to 4, characterised in that the outer flat film (2, 6) consists of a covered film, in particular an aluminium film.
- Packaging container according to claim 5, characterised in that the inner flat hose (1) and outer flat films (2, 6) consist of a multi-layer film.
- Packaging container according to one or more of claims 1 to 6, characterised in that the inner flat hose (1) consists of a two-layer film with an outer layer made of LDPE and an inner layer made of HDPE and the outer flat film (2, 6) consists of LDPE or a multi-layer film with an inside made of LDPE.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10255521A DE10255521A1 (en) | 2002-11-28 | 2002-11-28 | Plastic packaging containers |
DE10255521 | 2002-11-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1424293A2 EP1424293A2 (en) | 2004-06-02 |
EP1424293A3 EP1424293A3 (en) | 2005-01-19 |
EP1424293B1 true EP1424293B1 (en) | 2007-06-06 |
Family
ID=32240494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03027250A Expired - Lifetime EP1424293B1 (en) | 2002-11-28 | 2003-11-28 | Plastic packaging container |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1424293B1 (en) |
AT (1) | ATE364019T1 (en) |
DE (2) | DE10255521A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005051640B4 (en) * | 2005-10-26 | 2010-10-14 | Nordenia Deutschland Gronau Gmbh | Packaging bags, in particular for chocolate goods |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB515014A (en) * | 1937-08-04 | 1939-11-23 | Leroy Lincoln Salfisberg | Improvements in packages for storing and dispensing powders, pastes, liquids and like fluid substances |
BE449192A (en) * | 1943-02-13 | |||
GB932524A (en) * | 1961-12-05 | 1963-07-31 | Spiral Mfg Proprietary Ltd | Tubular moisture-proof packaging material and method of and apparatus for its manufacture |
US3838794A (en) * | 1972-07-10 | 1974-10-01 | H Markham | Package for storing and dispensing liquids |
GB2074128B (en) * | 1980-04-18 | 1984-02-15 | Pillopak Bv | Mailing-containers and a method of manufacture thereof |
DK138295A (en) * | 1995-12-06 | 1997-06-07 | Tetra Laval Holdings & Finance | Aseptic bag for liquid separation |
DE19600530C2 (en) * | 1996-01-10 | 2000-02-17 | Nutrichem Diaet & Pharma Gmbh | Two-chamber bag and method of making the bag |
DE20106034U1 (en) * | 2001-04-06 | 2001-07-05 | August Tƶpfer & Co. (GmbH & Co.), 20539 Hamburg | Packaging for bath salts |
-
2002
- 2002-11-28 DE DE10255521A patent/DE10255521A1/en not_active Withdrawn
-
2003
- 2003-11-28 EP EP03027250A patent/EP1424293B1/en not_active Expired - Lifetime
- 2003-11-28 DE DE50307413T patent/DE50307413D1/en not_active Expired - Lifetime
- 2003-11-28 AT AT03027250T patent/ATE364019T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE10255521A1 (en) | 2004-06-24 |
ATE364019T1 (en) | 2007-06-15 |
EP1424293A3 (en) | 2005-01-19 |
EP1424293A2 (en) | 2004-06-02 |
DE50307413D1 (en) | 2007-07-19 |
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