EP1089912B1 - Gasdichte lebensmittelverpackung sowie verfahren und tray zu deren herstellung - Google Patents
Gasdichte lebensmittelverpackung sowie verfahren und tray zu deren herstellung Download PDFInfo
- Publication number
- EP1089912B1 EP1089912B1 EP99932726A EP99932726A EP1089912B1 EP 1089912 B1 EP1089912 B1 EP 1089912B1 EP 99932726 A EP99932726 A EP 99932726A EP 99932726 A EP99932726 A EP 99932726A EP 1089912 B1 EP1089912 B1 EP 1089912B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- trays
- tray
- film
- packaging
- peripheral flange
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/10—Container closures formed after filling
- B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
- B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B7/00—Closing containers or receptacles after filling
- B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
- B65B7/162—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by feeding web material to securing means
- B65B7/164—Securing by heat-sealing
-
- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/44—Integral, inserted or attached portions forming internal or external fittings
- B65D5/441—Reinforcements
- B65D5/445—Reinforcements formed separately from the container
-
- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
-
- 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
- B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or 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
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
- B31B2120/402—Construction of rigid or semi-rigid containers lined or internally reinforced by applying a liner to already made boxes, e.g. opening or distending of the liner or the box
- B31B2120/404—Construction of rigid or semi-rigid containers lined or internally reinforced by applying a liner to already made boxes, e.g. opening or distending of the liner or the box using vacuum or pressure means to force the liner against the wall
-
- 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
- B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
- B65D2577/10—Container closures formed after filling
- B65D2577/20—Container closures formed after filling by applying separate lids or covers
- B65D2577/2025—Multi-layered container, e.g. laminated, coated
Definitions
- the invention relates to a food packaging according to the preamble of claim 1 and a method for the production of such packaging according to claim 9 one for this suitable semifinished product or tray in the form of erect and glued trays according to claim 15 and a method for its manufacture.
- Food packaging is in great variety the market, with recent special efforts be made, the proportion of non-recyclable Plastics with such packaging to a minimum to limit. So far there have been food packaging in the form of deep-drawn plastic shells enforced, which is usually made of a carrier material be thermoformed, for example made of PVC, polyesterol or polyester is formed.
- the conventional ones made of PVC, polyester or polyesterol Manufactured shells are produced in terms of production technology due to so-called "vacuum forming and filling systems" a very uneven thickness distribution due to the Available starting strength in the known thermoplastic Deformation process.
- this requires related to the desired Drawing depth and container shape up to a strong starting thickness to 1000 ⁇ m in order to achieve the required residual wall thickness in the To reach ground radii.
- the thinning leads the one to be used for shaping the plastic shells Plastic films very common in the bottom radii to so-called "kink breaks", which occur especially during the Transportes can occur.
- This oxygen barrier usually consists of Polyvinyl alcohol.
- a third layer of film required to seal the lidding film to be able to manufacture.
- Such a shell is for example in the EP 0196799. It also contains a procedure discloses a variety of individual, separate Trays in a filling or sealing station be introduced.
- the bowls are gradually added lined with a thin layer of plastic before filled with food and fed to a sealing station become.
- Another need is a procedure for the oxygen-tight packaging of food under With the help of a food packaging of the above Kind in such a way that conventional packaging systems with a higher number of cycles and even more economical can be operated.
- you're on looking for a device for performing the The aforementioned method which is characterized by a special low susceptibility to failure of the packaging systems distinguishes itself even with the highest number of cycles.
- the food packaging proposed there has as a load-bearing base with a thin plastic composite film lined cardboard blank that automatically erectable and its interior at the cut edges is glued.
- the cardboard blank also has one Edge flange with individual edge flange segments on which is then attached to the cover film.
- the edge flange is shaped on the outside in such a way that that the edge flange segments in the sealing position close together.
- the shells used here consist of cellulose or sanded wood, whereby too several material-related shells from one Dispensers are fed to the forming station.
- the Forming station, the filling line and the Sealing stations are in this known method Part of a packaging machine, its components essentially that of a conventional one Packaging system.
- the forming station is one feed unit for the prefabricated trays upstream.
- the invention is therefore based on the object Food packaging according to the preamble of the claim 1 to create, which are characterized by the above Advantages and also characterized in that they faster and more reliable with continuous gas or Oxygen tightness can be made.
- Another The task is to create a process to provide such food packaging, that can be carried out according to a simple process.
- a device for performing the Manufacturing processes are created that are simple is built and offers the special advantage that conventional Packaging facilities as much as possible in the device can be integrated.
- the design should have the advantage that high Number of pieces per time unit can be produced with such high precision are that the quality requirements of an oxygen-tight Packaging even with the greatest throughput of Packaging system are ensured.
- the packaging with an uninterrupted Collar equipped which is a continuous Provides space for sealing the packaging.
- the continuous, d. H. continuous collar has advantages already when attaching the inside of the packaging lining plastic film, because the best conditions for a large-area connection between plastic film and edge flange are formed. In addition results there is the additional advantage that even at higher working speeds damage to the packaging machine the plastic film can be excluded.
- the decisive advantage is shown when sealing the Packaging. Because the uninterrupted, from the plastic film surface of the edge flange covered by the lining offers optimal conditions for a large area Sealing the lidding film. It has shown, that in this way the working speeds the packaging machine can be increased significantly, without running the risk of being capillary-like Radial channels between the cover film and the lining film arise that are detrimental to long-term tightness would.
- the design of the food packaging according to the invention needs a somewhat more complex structure of the Packaging blank.
- the circulating Flange in a particularly advantageous manner Stabilization of the packaging tray can be used even if the connection between the tray components only selectively or in certain areas and not over the entire area is performed.
- the packaging according to the invention is particularly suitable Way for a semi-finished cardboard.
- the plastic composite film Oxygen barrier layer, preferably made of polyvinyl alcohol, a sealing layer, preferably made of peelable polyethylene, and an adhesive layer, preferably made of modified Polyethylene, especially a copolymer of Ethylene with 6% methacrylic acid, which is partially (50%) with Na or zinc ions are neutralized (Surlyn A), see above a flexible composite is used, whose oxygen permeability can be determined in advance and also is not changed in the embedded state. Due to this can be a much thinner EVOH layer, which in embedded in a flexible composite can be used. Because of the peelability of the plastic film excellent environmental sustainability. The plastic film can - as surprisingly turned out has - be kept extremely thin and yet that Tray, even if it's made of simple cardboard, like this stabilize that even relatively deep packaging can be manufactured with sufficient stability are.
- the food packaging according to the invention Claim 6 preferably with a cardboard blank equipped of a recyclable or preferably two-layer cardboard, so is a food packaging created, which is suitable on the outer layer of the cardboard blank a special advertising Bear imprint. This will in particular created a possibility, the food packaging according to the invention highlight optically.
- the design according to claim 7 has the special Advantage that the surface structure of the tray is adapted to specific requirements.
- the surface structure of the tray is adapted to specific requirements.
- For the lining the shell it is an advantage if the when molding heated plastic film in a short time an intimate Connection with the surface of the shell part is established.
- it happens for the outside of the shell part depends on an attractive appearance and good conditions for the printing to be done as a rule create.
- the second, i.e. H. innenettiige Layer easily made from recycled cardboard can exist, which saves costs and special Achieved environmental benefits become.
- the lined Cardboard blanks have a container that is when they come in to the vacuuming or sealing station on one side, namely the upper side, oxygen-tight is.
- the plastic-lined cardboard blank especially in the field of the invention trained edge flanges a particularly high dimensional stability has this edge flange between the Seals of the closed sealing tool securely received be, so that according to the invention only the inner cavity the shaped carrier shell are evacuated got to.
- the power consumption of the packaging system for generation the evacuation is reduced, the clock rate of the This can significantly increase the packaging system.
- the overall system can either be considerably shorter or the filling section can, if necessary, be used much better, which makes the filling process is facilitated.
- the power consumption of the packaging system especially in the area of the forming station reduced because the time required to warm up a usual hard film from approx. 500 to 1000 ⁇ m (PVC, polystyrene or polyester) can be significantly reduced can.
- the required inherent stability of the container is inventively by using the cardboard blank described reached, especially when the lidding film on the plastic film that lines the cardboard blank, is attached.
- the food packaging according to the invention experiences compared to food packaging that also uses cardboard blanks increased dimensional stability and is in a high degree of torsional stability.
- the food packaging according to the invention belonging tray is the subject of the claims 12 to 21.
- the tray can be of almost any shape be equipped, the special advantages then can be achieved if the shell part has a certain minimum depth exceeds.
- Preferably the bottom has one Polygon shape.
- the method for producing the tray according to claim 19 manages the two parts of the tray in the shortest possible time Time and with the greatest possible accuracy, the advantage being achieved that the manufacture of the trays on the working speed of the packaging system remains independent.
- the trays are preferred nested in a magazine for cardboard trays and from there individually onto a conveyor belt of the transfer module given the packaging machine.
- Fig. 1 is the side view of the packaging system shown, which has essentially five main stations, namely a stapling station HS for attaching a lining film 134 for prefabricated trays, one forming station (FS), in which the plastic film is molded into the trays a filling line (BS), a sealing and Vacuum station (VS) and a preferably two-stage Separation system 181, 182 the latter as well can be designed in one stage.
- a stapling station HS for attaching a lining film 134 for prefabricated trays
- FS forming station
- BS filling line
- VS sealing and Vacuum station
- a preferably two-stage Separation system 181, 182 the latter as well can be designed in one stage.
- the transport of the cardboard blanks, which are precisely arranged in a row or erected trays 110 to the individual Stations are preferably carried out via a transport chain 148 or when used on a so-called "Tray sealer” on a specially designed conveyor belt with recording rooms for the side by side Carton blanks.
- module labeled "I" of the actual packaging machine largely as a commercial machine designed and redesigned only in some areas
- Another module II can be connected upstream the separation of the nests in a magazine or Dispenser 112 received trays 110 and their transfer to module I takes place.
- the prefabricated cardboard blanks 110 - preferably in rows with 2 to 5 trays side by side - clock-controlled with the help of a preferably pneumatically operating separating device VV9 given on a subject tape 112, with which continues the at least one clock-controlled the cardboard blanks is transported to a transfer station ÜS.
- the at least one tray 110 is made using an excavation station 114 also clock controlled by means of a special Transport stamp 113 vertically upwards in the Level EKF of plastic film 134 and in the area of Stapling station HS raised, in the heated stamp 118 the lining film preferably point to the leading and / or trailing areas of the edge flange the trays are stapled.
- the cardboard blanks are cut into appropriate recording rooms the transport chain 148 set.
- Module II is very successful space-saving arrangement and the overlap area ÜB in Saving transport direction.
- the real one begins Forming or lining process of the trays 110 by means of the plastic, preferably the plastic composite film 134.
- the molding station is lining the inner surface the one arranged in rows Cardboard trays 110 with an oxygen-barrier plastic composite film 134 performed.
- the plastic composite film 134 is of an endless roll 133, which is above the inlet section of the packaging system attached to a bracket, about Deflection pulleys, unspecified, over those in the admission forms Trays 110 arranged in series essentially pulled parallel to the transport chain 148.
- the transport chain leads 148 the rows arranged in the Receiving rooms of the transport chain resting trays 110 below a forming station FS, whose working principle is for lining the inner surface of the trays 110 with the plastic composite film 134 on a form, fill and seal machine used iso-pack system from MUL-TIVAC equivalent.
- the trays 110 are then transported using the transport chain 148 transported into the area of a filling line BS, which is also designed to be a row Allows filling in time.
- the filled run from the filling line BS Trays in a vacuuming and sealing station VS one, at the same time one of an endless role 122 cover film 120 guided over a deflection roller system essentially parallel to the transport route into the vacuum and sealing station VS is performed.
- How the vacuuming and sealing station works VS corresponds to conventional systems, e.g. from the company Multivac and is described in detail in Fig. 12.
- the peculiarity of the packaging device exists in that, on the one hand, a specially designed tray 110 This tray 110 is used in one special way, manufactured and semi-finished is fed to the packaging system.
- Figure 2 shows the two components of the tray 10 in preformed condition, immediately before the parts are assembled and connected to one another, preferably glued become.
- Figures 3 to 5 the parts in the plan view shown in detail.
- Both parts are designed as a cardboard blank, whereby preferably a two- or multi-layer cardboard application takes place so that the outside of the tray has a different quality than the inside can have.
- the cutting of the has the collar forming the edge flange 52 - as in FIG. 3 shown - incisions to form trapezoidal Tabs 51, which hang on predetermined edge lines on the edge flange.
- the shell part 40 has a cut according to FIG. 5 and 6. Hang on a bottom part 41 via fold lines 42 the side wall portions 43 which are erect Touch condition ( Figure 6 and Figure 2).
- the adhesive connection is preferably point or linear, as shown by hatched areas 47 in Figure 2 indicated.
- the tabs 51 are on the inside of the side walls 43 attached so that the outside of the side walls what is conducive to printing remains consistent.
- the height H43 of the walls 43 is greater than the height H51 of the tabs 51, i.e. the tabs overlap the side walls only a fraction of the area, reducing weight and save DSD fees.
- Fig. 7 are erected, arranged in rows Cardboard blanks 10 shown in perspective, wherein also a possibly provided recessed grip GM can be seen on an edge segment of the edge flange 52 can be provided.
- the tool of the forming station FS which according to the so-called Skin process works, consists of a sub-mold 116 and an upper mold 118, which corresponds to the one in Fig. 8 shown arrow moved apart and moved together become.
- the lower mold 116 preferably has a profile for the positive inclusion of the Cardboard blanks 10 so that the edge flanges 52 of the cardboard blanks 10 are supported in a sealed manner.
- the top shape 118 is also designed so that a heater 172 can be included.
- 173 and 173A are recesses in the upper and lower part 116, 118 shown, which is designed according to the recessed grips GM are.
- FIG. 4 is the front view of the molding station FS shown. It can be seen that the lower mold 116 is web-like Inserts 166 has the shape of the cross section of the Trays 10 arranged in rows is adapted. in this connection the closely spaced edge flanges are adjacent Trays 10 on these web-shaped inserts snugly on, so that in the collapsed state the tool halves 116 and 118 the individual trays additionally through the intended mold inserts 158, whose The surface contours correspond exactly to the shape of the trays, are positively supported. How it works the form station FS in particular the skin process is briefly described below:
- FIG. 10A section along the edge flange 52 of a Trays 10 with the composite film 134) thereon the individual layers forming the composite film are shown.
- the plastic composite film 134 has an oxygen barrier layer 136, preferably made of polyvinyl alcohol (EVOH) and a sealing layer 138, preferably made of peelable Polyethylene and an adhesive layer 137, preferably made of modified polyethylene. It has shown, that the inside coating of the food packaging forming carrier material made extremely thin can be.
- the film thickness is preferably in the range the remaining wall thicknesses in the base radii between 25 and 30 ⁇ m.
- the film 134 can be optimized with the box.
- the plastic composite film 134 can also do so built up and controlled in their behavior that detached from the cardboard carrier after using the packaging can be so that for disposal or Recycling pure ingredients are available. This is used according to the invention also the grip hole recess GM.
- the connected parts After leaving the forming station FS, the connected parts pass through Trays 10 along the filling station the filling line BS, meanwhile, with the to packaging food.
- the transport the connected trays 10 are made by the common one Plant as it were in cycles.
- the filled trays 10 run into the vacuum and sealing station VS, in which they from the lower part 116 by means of appropriate mold inserts be included (see Figure 11).
- Such a vacuum or sealing station of the conventional type consists of a lower part 216 and an upper part 218, which are clocked together and moved apart.
- the lower mold 216 preferably has a profile for complete Inclusion of the trained according to the invention Trays 10 such that the edge flanges of the shells are sealed can be supported.
- the top is like this designed to have a line pattern Take up heating plate 274 so that it can move vertically can.
- the line pattern is designed so that it covers areas defined at which a seal of the cardboard blank edge flange done with the cover film 120 should.
- 12 is intended to function as such a vacuum or sealing tool in the invention Show effort. It can also be used for this process well-known and proven conventional system with minor Changes are used. 12 shows the lower mold 216 with the web-like inserts 266, the shape of which is a cross section of between two adjacent edge flanges of the trays 10 forming Saddle stripe is adjusted so that in the retracted Condition of the tool halves 216 and 218 the related Trays 10 through the intended mold insert 258, whose surface contour is the shape of the lying on it Trays corresponds, are positively supported.
- the corresponding a pattern in line with the bridges the upper tool half 218 are housed so that with the tool halves 216 and 218 welding the cover film 120 to the relevant one Edge flanges of the individual containers take place in such a way that a continuous continuous sealing surface comes about.
- a commercially available vacuum station can be used, in which, after evacuation, gassing, for example with the usual gas mixture N 2 / CO 2, usually in a ratio of 70:30, can be used.
- gassing for example with the usual gas mixture N 2 / CO 2, usually in a ratio of 70:30.
- the heating plate 274 located in the upper part of the tool 218 is preferably designed with relief-shaped sealing webs, the cover film being sealed by the action of heat and pressure with the sealing coating of the peripheral edge flange and the resulting saddle webs of the connected trays.
- Fig. 12 it is shown how now with food filled, sealed and coherent trays 10, have left the vacuuming and sealing station.
- the working width of the device is self-evident not limited. However, it has been shown that the widths should be at least about 420 mm, to the economics of the device on a particular to maintain a high level.
- the cover film 120 is preferably also made of one Plastic composite film 134 is produced, which has an oxygen barrier layer contains which on the the cardboard blank facing side of a peelable plastic layer preferably covered from modified polyethylene is. This layer then forms with the plastic composite film 134 over sealing webs of the edge flanges Seal seams.
- the film layer facing the heating or sealing element 272 is preferably of a film quality with special high melting point or a heat barrier Layer formed, which preferably contains polyethylene and which lies over the oxygen barrier layer in order to Seal with the mold base for adequate Shape and surface stability during the sealing process to care. Because the sealing layers of both the cardboard blank surface as well as the cover film 120 preferably “peelable” are coordinated with each other Sealing these two sealing layers a firm Connection that largely without destroying the corton cutting film 34 can be peeled off by hand (see Fig. 14).
- tray rows after the Leaving the forming station FS using a special device are made sterile or sterile. This is about it is advantageously a so-called "Hydrogen peroxide shower”.
- the plastic composite film Due to the interior coating made using The plastic composite film increases the stability of the tray especially about the edge flanges designed according to the invention improved considerably. After freezing The plastic composite film 134 loses considerable flexibility and additionally stiffens the entire tray the edge flanges.
- this special not have the inventive edge flange design, can be due to tolerances when fixing the Trays in the process or through the manufacturing Fluctuations in the carton blank design a uniformly wide and therefore sufficient safe Sealing surface cannot be reached.
- the separation of the oxygen-tight Foil inner component from the actual stability-giving Cardboard cutting is another essential one Point of the invention (see Fig. 14).
- the the Plastic composite film lining the inside of the tray is with the fibers of the inner walls and the bottom of the cardboard blank heat-laminated connected.
- the Multivac Skin system in which the heated, thus made plastic Plastic composite film with the specially trained Laminating layer, which is preferably a Surlyn blend from Dupont or a mixture (PE type) with particularly high (preferably over 20%) ethylene vinyl acetate content contains, the plasticized composite film through the corresponding pressure difference to the Tray interior surfaces pressed and can in the fibers of this Penetrate the inner surface.
- the specially trained Laminating layer which is preferably a Surlyn blend from Dupont or a mixture (PE type) with particularly high (preferably over 20%) ethylene vinyl acetate content
- the cover film 120 is over the peripheral edge flanges and the saddle bars of the rows connected Trays with a Sealing layer are coated after evacuation or gassing in the sealing station with the lower part of the packs connected.
- GM semi-oval punching
- the consumer releases the cover film as far from the sealing surfaces until it is the filling material can be easily removed (see Fig. 15).
- the plastic composite film and the not completely peeled off lid film then together over the handle tab of the actual cardboard blank on the designated grip hole removed.
- the sorting has been carried out and the individual materials can be further Recovery can be supplied.
- Figure 16 is a schematic view of a Tool for manufacturing the trays 10 shown.
- the cardboard blank 40 is erected and a precise fit using an air suction device 319 stabilized.
- The is above the shape of the floor top shape 318 arranged that the erected collar with edge flange 52.
- Form 316, 318 are moved together after on one of the overlapping surfaces of side walls and / or tabs a cold or Hot glue was applied.
- hot glue the setting time can be controlled more precisely and thus the clock frequency during production increased further become.
- Figure 16 are the areas where the adhesive is applied, indicated in different shapes, which should express that there is a variety of variations in the design, depending on the stress profile of the trays.
- FIG. erect or prefabricated trays 510 are made from a magazine 512 taken in rows and a clocked conveyor belt Passed 511.
- the trays 510 are then placed under one Stamp device transported with a stamp 517, in which the edge flange formed by the segments 444 before placing the collar 452 in the gluing station KS is broken, in such a way that a level as possible Surface for putting the collar on as flush as possible adjacent sections 444 arises.
- the stamp 517 is designed such that the edge flange 552 in the depending Fermentation cut at the ends of the edge flange segments 444 possible sealing position broken with a corresponding inclination becomes.
- the transfer station connects to the gluing station ÜS (see Figure 1).
- the transport chain 148 transports the rows Trays 10 arranged closely to one another are then clock-controlled to the FS forming station.
- the forming station FS can be designed such as one after the Skin system working station of a form, fill and Locking system according to Multivac CD6000.
- the invention thus creates food packaging in the form of a stable cardboard blank with a peripheral flange on the top, which according to the invention is continuous and placed on the shell part is.
- the sealing surface along the flange gets this way a special quality that lasts Tightness guaranteed.
- the carrier shell consists of cardboard and carries on the inside in the area of the edge flanges Fold an oxygen-saving plastic film to the Sealing with the cover film is suitable.
- a method and a device are also described for the production of an oxygen-tight food packaging, with preformed and dimensionally stable trays be supplied by a donor system or in the event use via a so-called tray sealer, i.e. directly from the donor to the forms in the transport chain of a tray sealer can be used.
- These trays are in a molding station with a plastic composite film, which preferably contains an oxygen barrier layer, lined.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Closing Of Containers (AREA)
- Cartons (AREA)
- Making Paper Articles (AREA)
- Vacuum Packaging (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Description
Claims (22)
- Lebensmittelverpackung mit umlaufendem Randflansch, welche innenseitig mit einer den Randflansch erfassenden Kunststoff-, insbesondere Kunststoffverbundfolie ausgekleidet ist und deren Innenraum mittels einer Deckelfolie gasdicht, insbesondere sauerstoffdicht über den Randflansch abgeschlossen bzw. versiegelt ist, mit einem den Verpackungsboden (41) und die Seitenwände (43; 443) zumindest teilweise bildenden vorgefertigten Schalenteil (40), gekennzeichnet durch einen auf das vorgefertigte Schalenteil (40) zur Bildung eines vorgefertigten, als Einheit handhabbaren Trays aufgesetzten, den Randflansch (52) bildenden ununterbrochenen Kragen, wobei der Randflansch (52) die Seitenwände (43) dadurch stabilisiert, dass der Randflansch Laschen (51) aufweist, die an der Innenseite der Seitenwände (43) damit verklebt sind.
- Lebensmittelverpackung nach Anspruch 1, dadurch gekennzeichnet, dass das Schalenteil (40) und/oder der Kragen (52) von einem Kartonzuschnitt gebildet ist.
- Lebensmittelverpackung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Kunststoffverbundfolie (134) eine Sauerstoffsperrschicht (136) vorzugsweise aus Polyvinylalkohol und eine Siegelschicht (138), vorzugsweise aus peelbarem Polyethylen sowie eine Haftschicht (137), vorzugsweise aus einem modifizierten Polyethylen, insbesondere einem Copolymer von Ethylen mit 6% Methacrylsäure, die partiell (50%) mit Na- oder Zink-Ionen neutralisiert sind (Surlyn®A), aufweist.
- Lebensmittelverpackung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Deckelfolie (120) von einer Kunststoffverbundfolie (134) gebildet ist, die auf der dem Tray (10) zugewandten Seite eine vorzugsweise peelbare Kunststoffschicht, vorzugsweise aus Polyethylen und darüberliegend zumindest eine sauerstoffsperrende Schicht, vorzugsweise aus Polyvinylalkohol und einer abdeckenden Hitzesperrschicht, beispielsweise aus Polypropylen, aufweist.
- Lebensmittelverpackung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Kunststofffolie je nach Formtiefe eine Ausgangsstärke im Bereich zwischen 100 und 150 µm hat.
- Lebensmittelverpackung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Schalenteil (40) und/oder der Kragen (52) aus einem recycelbaren, vorzugsweise mehrlagigen Karton besteht.
- Lebensmittelverpackung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass der Karton eine der Aussenseite der Verpackung zugewandte Deckschicht mit einer ersten Oberflächenstruktur, die sich als Informationsträgerschicht eignet, und eine innenseitige zweite Schicht mit einer spezifischen Oberflächenstruktur hat, die auf die Verbindung mit der Kunststofffolie abgestimmt ist, dass die beim Ausformen erwärmte Kunststofffolie in kurzer Zeit eine innige Verbindung mit der Öberfläche des Schalenteils (40) eingeht.
- Lebensmittelverpackung nach Anspruch 7, dadurch gekennzeichnet, dass die zweite Schicht aus Karton besteht, vorzugsweise aus recycliertem Karton.
- Verfahren zur gas- bzw. sauerstoffdichten Verpackung von Lebensmitteln in einer Lebensmittelverpackung nach einem der Ansprüche 1 bis 8, bei dem die zu einer Einheit verbundenen, aus Schalenteil und Randflansch bestehenden Trays taktweise eine Formstation (FS) und eine Befüllungsstation (BS) durchlaufen, der eine Vakuumierungs- und Versiegelungsstation (VS) nachgeschaltet ist, wobei die Trays reihenweise in der Formstation (FS) angeordnet werden.
- Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass die Trays (10) der Formstation (FS) im vorgefertigten Zustand zugeführt werden.
- Verfahren nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass die Auskleidung der Innenfläche der Trägerschalen vorzugsweise reihenweise und mittels einer die gesamte Siegelfläche der Randflansche (52) abdeckenden Kunststoffverbundfolie (134) erfolgt, die in einer der Formstation (FS) vorgeschalteten Übergabestation (ÜS) an die Randflansche der Trays geheftet (Heftpunkte) wird.
- Verfahren nach Anspruch 11, dadurch gekennzeichnet, dass der Transport der Trays (10) durch die nachfolgenden Stationen mittels der die Auskleidung bildenden Kunststofffolie (134) erfolgt, die randseitig von Greifern einer Transporteinrichtung, vorzugsweise einer Transportkette (148) erfasst wird.
- Verfahren nach einem der Ansprüche 9 bis 12, dadurch gekennzeichnet, dass die Kunststoffverbundfolie (134) ggf. nach Erwärmung durch Herstellung einer Druckdifferenz in die Trays (10) eingeformt wird und fest mit dem betreffenden Randflansch und der Innenseite der zugehörigen Trays (10) wärmekaschiert wird.
- Verfahren nach einem der Ansprüche 9 bis 13, dadurch gekennzeichnet, dass die durch die auskleidende Kunststoffverbundfolie (134) zusammenhängenden Trägerschalen in der Vakuumierungs- und Versiegelungsstation (VS) mit der Deckelfolie (120) über den Randflanschkranz vorzugsweise durchgehend verschweisst werden.
- Tray für eine Verpackung nach einem der Ansprüche 1 bis 14, mit einem den Verpackungsboden und die Seitenwände zumindest teilweise bildendes Schalenteil (40) und einen auf dieses aufgesetzten, den Randflansch (52) bildenden ununterbrochenen Kragen, dadurch gekennzeichnet, dass der Randflansch (52) die Seitenwände stabilisiert und Laschen (51) aufweist, die an der Innenseite der Seitenwände (43) mit diesen verklebt sind.
- Tray nach Anspruch 15, dadurch gekennzeichnet, dass das Schalenteil (40) ein Kartonzuschnitt ist.
- Tray nach Anspruch 15 oder 16, dadurch gekennzeichnet, dass die Seitenwände (43) konisch nach unten zulaufen.
- Tray nach einem der Ansprüche 15 bis 17, dadurch gekennzeichnet, dass der Boden (41) Polygonform hat.
- Tray nach einem der Ansprüche 15 bis 18; gekennzeichnet durch eine innenseitige, den Randflansch (52) erfassende Auskleidung, die von einer Kunststoff-, insbesondere einer Kunststoffverbundfolie gebildet ist.
- Verfahren zur Herstellung eines Trays nach einem der Ansprüche 15 bis 19, dadurch gekennzeichnet, dass der Zuschnitt des Schalenteils zunächst in einer ersten Form (316) aufgerichtet wird, und dass der Kragen (52) anschließend mittels einer zweiten Form (318) positionsgenau auf das Schalenteil (40) aufgesetzt und über ausgewählte Bereiche mit diesem zu einer separat handhabbaren Einheit verklebt wird.
- Verfahren nach Anspruch 20, dadurch gekennzeichnet, dass die Verbindung mittels eines Kaltklebers erfolgt.
- Verfahren nach Anspruch 20, dadurch gekennzeichnet, dass die Verbindung mittels eines Heissklebers erfolgt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19828381 | 1998-06-25 | ||
DE19828381A DE19828381A1 (de) | 1998-06-25 | 1998-06-25 | Lebensmittelverpackung sowie Verfahren, Zuschnitt und Vorrichtung zu deren Herstellung |
PCT/EP1999/004399 WO1999067143A2 (de) | 1998-06-25 | 1999-06-24 | Gasdichte lebensmittelverpackung sowie verfahren, vorrichtung und tray zu deren herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1089912A2 EP1089912A2 (de) | 2001-04-11 |
EP1089912B1 true EP1089912B1 (de) | 2004-02-04 |
Family
ID=7872029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99932726A Expired - Lifetime EP1089912B1 (de) | 1998-06-25 | 1999-06-24 | Gasdichte lebensmittelverpackung sowie verfahren und tray zu deren herstellung |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1089912B1 (de) |
JP (1) | JP2002518262A (de) |
AT (1) | ATE258883T1 (de) |
CA (1) | CA2353684A1 (de) |
DE (2) | DE19828381A1 (de) |
WO (1) | WO1999067143A2 (de) |
Cited By (2)
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WO2007123481A1 (en) * | 2006-04-20 | 2007-11-01 | Pakit International Trading Company Inc. | Palette with integrated cutting |
DE102022104385A1 (de) | 2022-02-24 | 2023-08-24 | Multivac Sepp Haggenmüller Se & Co. Kg | Vorrichtung und verfahren zum herstellen von trays aus einer gruppe von kartonzuschnitten |
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JP4372935B2 (ja) * | 2000-01-24 | 2009-11-25 | 大日本印刷株式会社 | 紙製容器 |
JP4372940B2 (ja) * | 2000-02-21 | 2009-11-25 | 大日本印刷株式会社 | 紙製容器 |
JP4372941B2 (ja) * | 2000-02-21 | 2009-11-25 | 大日本印刷株式会社 | 紙製容器 |
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JP4372951B2 (ja) * | 2000-03-23 | 2009-11-25 | 大日本印刷株式会社 | 紙製容器 |
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JP4839500B2 (ja) * | 2000-04-07 | 2011-12-21 | 大日本印刷株式会社 | 紙製容器 |
JP4681694B2 (ja) * | 2000-10-13 | 2011-05-11 | 雪印乳業株式会社 | 簡易容器 |
ITBO20010045A1 (it) * | 2001-01-30 | 2002-07-30 | Ipack S R L | Contenitore per alimenti e relativo motodo di realizzazione |
DE10111232A1 (de) * | 2001-03-08 | 2002-09-19 | Pts Consulting Ag Villigen | Gasdichte Lebensmittelverpackung sowie Verfahren zu deren Herstellung |
DE102005035489B4 (de) * | 2005-07-28 | 2007-04-05 | Multivac Sepp Haggenmüller Gmbh & Co. Kg | Vorrichtung und Verfahren zum Beschichten von Verpackungen |
JP2010504253A (ja) † | 2006-09-21 | 2010-02-12 | ウルマ パッケージング テクノロジカル センター エス コープ | 無菌容器用閉口シート、前記シートを有する無菌容器および前記容器を取得するための方法 |
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EP2374730A1 (de) * | 2010-04-07 | 2011-10-12 | Ton Kamp | Verfahren, Vorrichtung und Stempel zur Herstellung eines versiegelten Behälters und versiegelter Behälter mit einem darin zu konservierenden Produkt |
EP2441696A1 (de) | 2010-10-14 | 2012-04-18 | Packable B.V. | Verpackung für die modifizierte Atmosphärenverpackung |
EP3222415A1 (de) * | 2016-03-23 | 2017-09-27 | Chima S.r.l. | Verfahren zur herstellung von mit kunststofffolie ausgekleideten kartonbehältern |
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DE102018118940A1 (de) * | 2018-08-03 | 2020-02-06 | Van Genechten Packaging N.V. | Verpackung |
DE102018126879A1 (de) * | 2018-10-29 | 2020-04-30 | Van Genechten Packaging N.V. | Verpackung |
FI130517B (fi) * | 2018-12-14 | 2023-10-24 | Jospak Oy | Tuotepakkaus ja menetelmä sen valmistamiseksi sekä pakkausaihio |
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GR1010422B (el) * | 2021-03-01 | 2023-03-08 | Δημοσθενης Παναγιωτη Παναγιωτοπουλος | Ανακυκλωσιμοι περιεκτες με αεροστεγη σφραγιση |
KR102593188B1 (ko) * | 2021-05-18 | 2023-10-23 | 곽금영 | 재활용 및 재사용 가능한 일회용 용기 및 그 제조방법 그리고 그 제조장치 |
WO2022264022A1 (en) * | 2021-06-16 | 2022-12-22 | G.Mondini S.p.a. | Container comprising an outer skeleton and an inner layer of thermoplastic material and method for making it |
IT202100017249A1 (it) | 2021-06-30 | 2022-12-30 | Mondini S R L | Metodo e apparecchiatura per la realizzazione di un contenitore comprendente una vaschetta rivestita internamente con uno strato di materiale termoplastico |
DE102021117622A1 (de) | 2021-07-08 | 2023-01-12 | Multivac Sepp Haggenmüller Se & Co. Kg | Verfahren zum herstellen einer verpackung und verpackung |
IT202100019046A1 (it) | 2021-07-19 | 2023-01-19 | G Mondini S P A | Apparecchiatura per la realizzazione di contenitori che comprendono uno scheletro di sostegno e uno strato di materiale termoformabile accoppiato allo scheletro di sostegno |
IT202100030200A1 (it) * | 2021-11-30 | 2023-05-30 | Grafica Pozzoli Spa | Contenitore flangiato in cartoncino. |
EP4205946B1 (de) | 2021-12-30 | 2024-05-08 | G. Mondini SpA | Vorrichtung zum herstellen eines behälters |
IT202100033041A1 (it) | 2021-12-30 | 2023-06-30 | G Mondini S P A | Apparecchiatura per la realizzazione di un contenitore |
EP4261029A1 (de) * | 2022-04-15 | 2023-10-18 | Cama1 S.p.A. | Maschine zur herstellung einer kartonschale |
DE102022111821A1 (de) * | 2022-05-11 | 2023-11-16 | Syntegon Technology Gmbh | Verfahren zur Herstellung eines Verpackungselements |
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FR2480708A1 (fr) * | 1980-11-07 | 1981-10-23 | Impression Cartonnage Ste Pari | Contenant en carton plie revetu d'une pellicule en matiere synthetique et muni d'un cadre peripherique en une seule piece ainsi que son procede de fabrication |
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DE29607689U1 (de) * | 1996-04-27 | 1996-07-18 | Tetra Laval Convenience Food | Kühleinrichtung |
DE19654230A1 (de) | 1996-12-23 | 1998-07-02 | Jochen Dietrich | Lebensmittelverpackung, Verfahren zur Herstellung einer sauerstoffdichten Verpackung, Vorrichtung zur Durchführung eines derartigen Verfahrens und dabei verwendete zusammenhängende Kartonschnitte |
-
1998
- 1998-06-25 DE DE19828381A patent/DE19828381A1/de not_active Withdrawn
-
1999
- 1999-06-24 EP EP99932726A patent/EP1089912B1/de not_active Expired - Lifetime
- 1999-06-24 DE DE59908473T patent/DE59908473D1/de not_active Expired - Fee Related
- 1999-06-24 JP JP2000555804A patent/JP2002518262A/ja active Pending
- 1999-06-24 WO PCT/EP1999/004399 patent/WO1999067143A2/de active IP Right Grant
- 1999-06-24 CA CA002353684A patent/CA2353684A1/en not_active Abandoned
- 1999-06-24 AT AT99932726T patent/ATE258883T1/de not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007123481A1 (en) * | 2006-04-20 | 2007-11-01 | Pakit International Trading Company Inc. | Palette with integrated cutting |
DE102022104385A1 (de) | 2022-02-24 | 2023-08-24 | Multivac Sepp Haggenmüller Se & Co. Kg | Vorrichtung und verfahren zum herstellen von trays aus einer gruppe von kartonzuschnitten |
Also Published As
Publication number | Publication date |
---|---|
WO1999067143A3 (de) | 2000-04-13 |
ATE258883T1 (de) | 2004-02-15 |
WO1999067143A2 (de) | 1999-12-29 |
EP1089912A2 (de) | 2001-04-11 |
CA2353684A1 (en) | 1999-12-29 |
DE19828381A1 (de) | 1999-12-30 |
DE59908473D1 (de) | 2004-03-11 |
JP2002518262A (ja) | 2002-06-25 |
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