EP0559606A1 - Procédé de fabrication d'emballages à libération par enfoncement - Google Patents

Procédé de fabrication d'emballages à libération par enfoncement Download PDF

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Publication number
EP0559606A1
EP0559606A1 EP93810089A EP93810089A EP0559606A1 EP 0559606 A1 EP0559606 A1 EP 0559606A1 EP 93810089 A EP93810089 A EP 93810089A EP 93810089 A EP93810089 A EP 93810089A EP 0559606 A1 EP0559606 A1 EP 0559606A1
Authority
EP
European Patent Office
Prior art keywords
roller
lid
counter
rotary
sealing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP93810089A
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German (de)
English (en)
Inventor
Dieter Schmiletzky
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3A Composites International AG
Original Assignee
Alusuisse Lonza Services Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alusuisse Lonza Services Ltd filed Critical Alusuisse Lonza Services Ltd
Publication of EP0559606A1 publication Critical patent/EP0559606A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/02—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, slitting, or applying code or date marks on material prior to packaging

Definitions

  • the present invention relates to a method for applying weakenings in the lid material of blister packs made of single-variety thermoplastic materials, comprising a bottom part with one or more compartments, depressions or cups and a lid attached to the edge of the compartments, depressions or cups, and a device for carrying out the method .
  • Blister packs are e.g. known for receiving tablets shaped like tablets.
  • a bottom part is divided into individual compartments, depressions or cups and each compartment, depression or cup can be loaded with a tablet or the like in each case, and the packaging can then be closed with a lid.
  • subjects, recesses or cells have synonymous meanings.
  • the lid is usually sealed on the flat surfaces provided for this purpose on the upper outer edge and any dividing webs that may be present. Thus, the entire filling material is tightly sealed from the outside and the various filling materials in the various compartments are also sealed from one another.
  • Packing units of this type are known as push-through packs or blister packs, provided the contents can be removed by manually pressing in the bottom part of a compartment or the bottom of the well and pushing through the cover part.
  • the blister packs which have become known to date generally have a base part made of plastic or a plastic composite and a cover made of aluminum foil or an aluminum-containing foil composite.
  • waste products of different types of material accumulate, some of which are still adherent, e.g. different plastics and metals bonded together in laminate form.
  • the lid material is provided by means of a rotary punch inside or near the edge outside the sealing surface, which surrounds a compartment and connects the base part and lid part, or is provided with weakenings on the lid over each compartment.
  • a first method is expedient, in which the cover material is continuously connected to the base part and, in the same operation, in a rotary punch inside or near the edge, outside the sealing surface, which surrounds a compartment, weakenings are at least partially applied in the cover material around the depressions.
  • a first method is preferred, in which the base parts and the cover material are fed as endless belts for mutual connection to a rotation system consisting of a first and a second roller and a third roller is designed as a rotary punch which runs on the second roller, and the rotary punch is Weakening the lid material.
  • a second method is expedient, in which the lid material is provided with weakenings within or close to the edge, coming to lie outside the sealing area or above the depression, and the lid material is then continuously connected to the base parts.
  • the cover material is fed as an endless belt to a rotary punch from a first roll as a counter-rotating roll and a second roll as a rotary punch, the weakening being applied and the pretreated cover material being carried out between the counter-rotating roll and a second counter-rotating roll and the second counter-rotating roll is in engagement with a heat sealing roller, the pretreated cover material and the base parts, in particular as continuous material, being connected to one another.
  • push-through packs can be produced, for example, the lid of which is divided into lid segments, of which each lid segment covers a compartment and each lid segment is sealed to the extent of the compartment at the bottom part, and each lid segment contains a scribing aid and each lid segment can be pushed through or the size of the compartment the sealing seam can be peeled off, peeled off or detached completely or partially by pushing through the contents and the bottom part and lid contain the same or different materials and the materials consist essentially of the same types of plastic.
  • Suitable forms of packaging according to the invention can generally be rectangular in plan view and have a plurality of, for example, angular, round or oval depressions, compartments or cups.
  • the base parts can be divided into compartments of any number and shape within their outer limits.
  • the subdivision within the container can be done by molded or inserted webs.
  • the webs can be produced by deep drawing, casting, injection molding or folding, for example, or by subsequent gluing into the base part.
  • the push-through pack expediently has more than two compartments, depressions or cups in the base part and the lid is divided into a corresponding number of lid segments.
  • Bottom parts with 8 to 200 compartments are preferred, particularly preferred are floor parts with 10 to 40 compartments.
  • the diameter or the maximum width and length of a blister pack is not critical per se and is normally 3 to 20 cm.
  • the height of such floor parts depends on practical requirements and can be, for example, 0.3 to 2 cm.
  • the external dimensions also suitably depend on the circumstances, such as norms and standard sizes.
  • the base parts can be molded, injection-molded, deep-drawn or deep-drawn plastic masses, or the base parts can be made, for example, of plastic-containing foils, foil composites, laminates, composites or laminates e.g. by embossing, deep drawing or other molding.
  • the lid materials can also be plastic-containing films, film composites, laminates or laminates.
  • plastics used for their production can be, for example, olefin-based, ester-based, polyamide-based thermoplastics or halogen-containing plastics or suitable mixtures of these thermoplastics.
  • the base parts and lid materials can also be made from or with cellulose-containing materials such as paper, cardboard, cardboard, paper-containing molding compositions etc., or reinforced with the aid of such materials.
  • a barrier layer against light, gases and vapors can also be provided for foils, laminates, laminates or foil composites for base parts and lids. Suitable are e.g. ceramic barrier layers as well as plastic barrier layers.
  • barrier layers such as ceramic layers
  • Barrier layers such as ceramic layers, contain, for example, oxides from the series of silicon oxides, aluminum oxides, iron oxides, nickel oxides, chromium oxides or lead oxides or mixtures thereof, and also nitrides or oxynitrides of the metals and semimetals mentioned.
  • the silicon oxides or aluminum oxides are expedient as ceramic layers.
  • the silicon oxides can have the formula SiO x , where x preferably represents a number from 1 to 2, particularly preferably from 1.1 to 1.9 and in particular from 1.2 to 1.7.
  • the aluminum oxides can have the formula Al y O z , where y / z is, for example, a number from 0.2 to 1.5 and preferably from 0.65 to 0.85.
  • the ceramic layer is, for example, a vacuum thin-film technique, expediently based on electron beam evaporation or resistance heating or induction heating from crucibles, e.g. on a carrier layer.
  • the carrier layer is expediently a plastic film or a plastic film composite. Electron beam evaporation is preferred.
  • the described methods can be carried out reactively and / or with ion support.
  • the ceramic layer can have a thickness of, for example, 5 to 500 nm, suitably 10 to 200 nm and preferably 40 to 150 nm.
  • the ceramic layer is due to its thin layer and the resulting low material content, as well as the physiologically harmless behavior of e.g. Silicon oxides or aluminum oxides, not disturbing in a recycled material and does not influence the purity and reprocessing.
  • Plastic barrier layers can, for example, consist of or contain polymers that are particularly gas and water vapor tight. Behave particularly favorably e.g. Polyvinylidene chlorides, polyolefins, ethylene vinyl alcohol (EVOH), polyvinyl chlorides, acrylonitrile copolymers or biaxially stretched polyethylene terephthalate.
  • Polyvinylidene chlorides polyolefins
  • EVOH ethylene vinyl alcohol
  • acrylonitrile copolymers or biaxially stretched polyethylene terephthalate.
  • the thickness of an individual plastic film or the individual plastic films in film composites or laminates and the carrier films can be, for example, 8 to 2000 ⁇ m, preferably 10 to 600 ⁇ m and in particular 12 to 25 ⁇ m.
  • Foil composites, laminates or carrier foils can have the layer structures known per se, such as e.g. containing at least two plastic layers, or containing at least one cellulose-containing layer and at least one plastic layer.
  • All materials can be used crystal clear, cloudy, colored through or covered in color. This makes it possible, e.g. to design opaque or opaque packaging.
  • At least one printed, counterprinted or colored layer of a material e.g. a plastic film may be provided.
  • sealing layers e.g. as sealing waxes or sealing foils.
  • the sealing layers are known per se and can, for example, contain or consist of LLDPE, LDPE, MDPE, HDPE, polypropylene and polyethyleneterephthalate and can be in film or lacquer form and can have a thickness in the range from 1 to 100 ⁇ m, for example.
  • heat sealing lacquers known per se can also be used.
  • the various layers and in particular the plastic films or layers with one another, ceramic layers on plastic films or layers with one another and with one another, can be processed with laminating adhesives and / or adhesion promoters and, if appropriate, pre-lacquer with one another to form the laminates or composites.
  • Suitable adhesion promoters are, for example, vinyl chloride copolymers, vinyl chloride-vinyl acetate copolymers, polymerizable polyesters, vinyl pyridine polymers, vinyl pyridine polymers in combination with Epoxy resins, butadiene-acrylonitrile-methacrylic acid copolymers, phenolic resins, rubber derivatives, acrylic resins, acrylic resins with phenol or epoxy resins, or organosilicon compounds, such as organosilanes.
  • EAA ethylene acrylic acid
  • modified polyolefins are preferred.
  • a modified polypropylene is preferred.
  • An example of a modified polypropylene dispersion is Morprime (trademark of Morton Chemical Division of Norton Norwich Products, Inc.).
  • adhesion promoters are adhesives such as nitrile rubber-phenolic resins, epoxides, acrylonitrile-butadiene rubber, urethane-modified acrylics, polyester-co-polyamides, hot melt polyester, cross-linked hot-melt polyester polyisocyanates polyisobutylenmod e, styrene-butadiene rubbers, urethanes, ethylene-acrylic acid copolymers and ethylene vinyl acetate -Mixed polymers.
  • adhesives such as nitrile rubber-phenolic resins, epoxides, acrylonitrile-butadiene rubber, urethane-modified acrylics, polyester-co-polyamides, hot melt polyester, cross-linked hot-melt polyester polyisocyanates polyisobutylenmod e, styrene-butadiene rubbers, urethanes, ethylene-acrylic acid copolymers and ethylene vinyl acetate
  • the laminating adhesives can be solvent-containing or solvent-free and also contain water.
  • examples are solvent-based or aqueous acrylate adhesives or solvent-free polyurethane adhesives.
  • Laminating adhesives based on polyurethane are preferred.
  • the composites and laminates can be made in a manner known per se, e.g. by coating, coextrusion coating, laminating, backing or hot calendering. Flame treatment or corona treatment in composite manufacturing is often useful.
  • film composites and laminates are suitable as materials.
  • film composites and laminates are generally from 8 to 1000 ⁇ m thick.
  • sealable films for example containing or consisting of high-density polyethylene (HDPE, high density polyethylene), medium density polyethylene (MDPE, medium density polyethylene), linear low density polyethylene (LLDPE, linear low density polyethylene), polypropylene, or polyethylene terephthalate, for example in a thickness in the range from 8 to 150 ⁇ m, is expedient 10 to 100 ⁇ m and preferably 70 to 80 ⁇ m.
  • lid materials can be films or film composites, constructed - seen from the inside of the container outwards - a) from a sealing layer, such as a sealing film or a sealing wax, as mentioned above, and b) from a film, for example from a polyethylene terephthalate film, one Polyamide film, a polypropylene film or a polyethylene film, which are optionally oriented axially or biaxially.
  • the film b) can be provided on at least one side with a ceramic coating c), preferably an SiO x layer, as described above. If necessary, on the slide b), respectively. on the ceramic layer c), further plastic films d) or plastic laminates d1), in particular the same plastics as the film b), can be applied.
  • the outermost film, for example d) or d1) or a further film e) can in turn be a sealable layer or a colored, printed or counter-printed layer.
  • the lid material can be, for example, a lid tape made of an outer film made of polyethylene terephthalate in a thickness of 12 to 30 ⁇ m, deposited on it a barrier layer made of SiO x , where x represents a value of 1.2 to 1.7, and an inner peeling layer (peel layer) be made of polypropylene of 20 to 50 microns thick.
  • a lid tape made of an outer film made of polyethylene terephthalate in a thickness of 12 to 30 ⁇ m, deposited on it a barrier layer made of SiO x , where x represents a value of 1.2 to 1.7, and an inner peeling layer (peel layer) be made of polypropylene of 20 to 50 microns thick.
  • Another exemplary cover tape contains, as an outer layer, a polypropylene film with a thickness of 50 to 100 ⁇ m, optionally a barrier layer, preferably a ceramic layer made of SiO x , where x represents a value from 1.2 to 1.7, and a polypropylene film on the inside. Peel layer with a thickness of 20 to 50 ⁇ m.
  • Lid materials made of a polypropylene film or a polyethylene terephthalate film with a thickness of 70 to 80 ⁇ m, optionally containing a ceramic barrier layer, are particularly preferred.
  • preferred parts of the base are those which have the following structure from the outside in: a) a polypropylene layer, b) optionally a ceramic barrier layer or a plastic barrier layer, for example made of ethyl vinyl alcohol, and c) a polypropylene sealing layer, the thickness of the Composite can vary between 200 and 400 microns.
  • the ceramic barrier layer in this composite can be a layer of SiO x located on the plastic layer made of polypropylene, where x represents a value from 1.2 to 1.7.
  • the base parts and the cover material can be processed to form continuous material, rolls, sheets or coils, the cover material being connected to the base parts continuously or step by step in order to close the base parts and then essentially being separated according to the edge contours of the respective base part.
  • the lid can be connected to the respective base parts by the method according to the invention, for example by sealing, such as heat or cold sealing, welding or gluing.
  • sealing such as heat or cold sealing, welding or gluing.
  • the base parts and lid can also be connected to one another by cold sealing, for example based on contact adhesive.
  • the usual materials can be used as contact adhesives. A thermal load on the packaging and especially sensitive filling goods, such as medication, is prevented or avoided. circumvented. Heat sealing is preferred.
  • lids can be divided into the segments in various ways.
  • a lid can be sealed onto the base part according to the first expedient method, the sealing seam being sealed on the base part to form cover segments, the extent of each compartment, and, at least partially, the extent of the individual cover segments according to a weakening in the form of a line of weakness is made on the lid material.
  • the weakening can also be a separation of the material, for example by a cut, and a dividing line can be formed.
  • a lid can be sealed onto the bottom part, the sealing seam being sealed on the bottom part to form lid segments, the extent of each compartment, and between the individual lid segments forming in the lid material, at least partially, the circumference of each Subject according to, weakening or separations already exist in the form of weakening or dividing lines or within the outline of the compartment in the lid segment there is a weakening in the form of weakening lines. Correspondingly, if there is a weakening within the outline of the compartment in the lid segment, there must be no separation.
  • the cover material can also first be sealed from the surface onto the base part along the edge flanges and webs, and after sealing, the webs and optionally along the edge flange of the respective base part can be weakened or separated in the form of weakening or dividing lines.
  • the sealing seams can be, for example, 1 to 6 mm, expediently 1.5 to 5 mm and preferably 1.5 to 3.5 mm wide around the edges of each cover segment.
  • the sealing seams on the webs are preferably so wide that if the lid material is separated or weakened after sealing, the tool tolerances of the separating device (rotary punch) are taken into account and each side of a two-part sealing seam has the widths specified above. Double seal seams can also be provided on the webs in particular.
  • the weakenings or separations can preferably be carried out by means of a rotary punch.
  • the dividing or weakening lines must preferably be at least as deep and wide, respectively. Tear-resistant selected that at the latest when removing the respective cover segment from the bottom part, only the cover segment in question is pulled off at least a part of its circumference. Prefers becomes a dividing or weakening line that extends only around a part, such as 1/2 to 9/10, preferably 1/3 to 7/8, of the circumference of the cover segment.
  • a weakening in the form of a separation is particularly preferred and thus a complete separation through the lid material to the bottom part to form lid segments in order to avoid tearing of the lid segment to be removed or adjacent when the filling material is removed.
  • Push-through packs are preferred whose cover segments are sealed according to the extent of the compartment by means of a sealing seam and have a severing or weakening of the lid material in the region of the sealing seam.
  • Push-through packs whose cover segments are sealed according to the size of the compartment by means of a sealing seam and have a severing or weakening in the lid material in the region of the sealing seam and the severing or weakening extends only over part of the circumference of each compartment are particularly preferred.
  • Press-through packs are also preferred, the sealed lid of which consists of a film or a laminate of the same materials as the base part.
  • the sealing seams can be applied in a manner known per se.
  • the sealing can be done by heat, high frequency radiation or ultrasound and by means of sealing tools. Typical sealing temperatures are from 100 to 300 ° C and expedient from 150 to 250 ° C.
  • the pressure of the sealing tools can be, for example, from 10 to 400 kg / cm2 and expediently from 40 to 150 kg / cm2.
  • the sealing times can be from 0.2 to 3 seconds and expediently from 0.4 to 2 seconds.
  • the sealing seams applied under these conditions can easily be peeled off, peeled off or peeled, for example, with the formation of a cohesive or adhesive break.
  • the cover segments cannot be completely peeled off or peeled off by applying the weakening lines or dividing lines and / or sealing seams of different strengths. So you can achieve that the lid segments of the individual compartments probably release the compartment and its contents, but stick to the bottom part with part of the sealed seam. In particular, this can reduce a waste problem, namely that the lid segments are thrown away individually, or the compartments can be reclosable.
  • the push-through pack on the sealed lid can contain a tear-off tongue or tear-open tab on each lid segment.
  • the present invention also relates to an apparatus for performing the present method.
  • the apparatus includes three rotary rollers, first and second rollers being a rotary seal system and the second and third rollers being a rotary die, or the apparatus being four rotary rollers, first and second rollers being a rotary die and third and fourth rollers represent a rotation seal system.
  • the device expediently contains three rotary rollers, the first roller being a heat sealing roller and the second roller being the counter-rotating roller, the counter-rotating roller having the surface configuration for receiving the base parts and the third roller being the upper part of a rotary punch.
  • the device expediently contains four rotary rollers, the first roller being the upper part of a rotary punch and the second roller being the counter-rotating roller to the first roller and the third roller being the heat sealing roller and the fourth roller having the surface configuration for receiving the base parts and thereby represents the counter-rotating roller to the third roller.
  • a corner of a push-through pack is indicated by way of example, which is to be sealed against the polypropylene base part with an opaque, heat-sealable polypropylene film as cover material with a thickness of approximately 70 to 80 ⁇ m.
  • the dashed line (A) is intended to mean an incision from the cover film side through the cover film to a minimal extent in the e.g. 300 ⁇ m thick bottom film into it - see also Fig. 2 (B).
  • the circular average of the lidding film can e.g. with the rotary punch according to the invention and runs around the bowl, from (a) to (b).
  • a partial bottom film (1) forms a depression (2) and a web area (3).
  • the bottom part film can be, for example, an approximately 300 ⁇ m thick PP film.
  • a cover material in the form of a cover film (4) is sealed to the web areas.
  • the cover film (4) can represent, for example, a 70 to 80 ⁇ m thick film made of polypropylene, which, if appropriate a ceramic barrier layer against the inside and a heat sealing lacquer (5) on the barrier layer.
  • a tablet (6) is in the recess (2). The arrow indicated indicates the direction of pressure when the tablet (6) is squeezed out.
  • the heat sealing lacquer at point (d) can begin to split or peel from the inside.
  • the peeling effect runs up to the cut (B), then the membrane bursts and the tablet can be removed upwards.
  • Fig. 3 is a view of a section of an open blister pack.
  • the recess (2) for receiving the tablet was pressed in from below, whereupon the cover film (4) flakes off along the sealing seam up to section B and the tablet (6) can be removed. Since the cut B does not surround the entire circumference of the recess (2), the cover segment (e) remains on the cover film (4) in the area between (a) and (b).
  • roller 7 is a heat sealing roller
  • roller 8 is the corresponding counter-rotor roller.
  • the counter-rotor roller 8 has a surface configuration which corresponds to the underside of the incoming belt 9.
  • the belt 9 is the bottom parts in continuous feed, provided with the compartments, depressions or cups that are already filled.
  • the counter-rotating roller 8 grips the filled belt 9 (like a toothed belt) and transports the belt 9 in the direction of the arrow.
  • the lid material 10 is fed in endless form to the rotary sealing system, formed from the rollers 7 and 8, via the heat sealing roller 7.
  • base parts and cover material are connected in a separable manner, for example by heat sealing.
  • the filled belt 9 runs on the counter-rotating roller 8 to the rotary punch 11.
  • the rotary punch 11 is essentially formed from the upper part 12 and the counter-rotating roller 8.
  • the upper part 12 represents a roller which is equipped with a cutting or embossing pattern which the Cuts or weakened the lid material.
  • the covered push-through packs 13 still leave the rotary punch in an endless form.
  • the endless belt of each process is fed to further treatment stations for division and packaging.
  • rollers 8 and 12 can form a structural unit, even when changing the tools. Rollers 8 and 12 are format dependent and can be changed in one block. This results in particularly short changeover times of a format part which carries out the sealing and punching.
  • the roller 7 is format-independent and therefore does not have to be changed.
  • the rollers 8 and 12 are preferably connected by mechanical means, for example toothed wheels, toothed belts, chains, shafts or the like, which ensure that the roller surfaces run in synchronization. As a rule, the system is driven by the roller 8.
  • the roller synchronism can also e.g. be guaranteed by electronic means.
  • a weakening for example cruciform or star-shaped, can be carried out in the surface of the lid material.
  • the weakening can lie over the compartment, the depressions or the well.
  • the weakening must not cut through the lid material, but only weaken through part of its thickness.
  • FIG. 5 shows a side view of an exemplary device according to the invention, in particular for producing blister packs according to FIG. 6.
  • the two rollers are connected to one another by a frame and through mechanical, hydraulic or pneumatic means the distance of the rotary punch 14 to the roller 16 is determined.
  • the peripheral speed of the rotary punch 14 and roller 16 are the same and are preferably maintained by a connection with mechanical means such as gears, toothed belts, chains, shafts or the like or electronic means between the counter-rotating roller 16 and roller 14.
  • the cover material 10 is supplied as a continuous material, via roller 16 and provided with the lines of weakness in the nip between the rotary punch 14 and roller 16.
  • the bottom parts are fed as belt 9 to the counter-rotating roller 17.
  • the roller 17 has a surface configuration which corresponds to the outside of the base parts.
  • the belt 9 is drawn like a toothed belt into the nip between the rollers 16 and 17.
  • the cover material supplied via the roller 16 runs into the roller gap with roller 17 and is connected in a separable manner in the roller gap between roller 17 and heat sealing roller 18 to the belt 9 at the intended locations.
  • the covered push-through packs 13 leave the heat sealing station in the direction of the arrow for assembly.
  • the recess 2 and the web area 3 are indicated schematically on a section of a push-through pack.
  • the weakening C through a partial thickness of the cover material is drawn as an example in a cross shape.
  • the weakening C is located centrally over the depression.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
EP93810089A 1992-03-05 1993-02-12 Procédé de fabrication d'emballages à libération par enfoncement Withdrawn EP0559606A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00695/92A CH686939A5 (de) 1992-03-05 1992-03-05 Verfahren zur Herstellung von Durchdrueckpackungen
CH695/92 1992-03-05

Publications (1)

Publication Number Publication Date
EP0559606A1 true EP0559606A1 (fr) 1993-09-08

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Application Number Title Priority Date Filing Date
EP93810089A Withdrawn EP0559606A1 (fr) 1992-03-05 1993-02-12 Procédé de fabrication d'emballages à libération par enfoncement

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CH (1) CH686939A5 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19824785A1 (de) * 1998-06-03 1999-12-09 Bellaplast Holding Ag Altstaet Verfahren zum Herstellen eines Originalitätsverschlusses und Lebensmittelbehälter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1019963A (en) * 1961-11-04 1966-02-09 Bodet Jean Augustin A package of pellets and apparatus for producing same
DE2230115A1 (de) * 1972-06-21 1974-01-10 Hans Josef Kitz Verpackungsvorrichtung
DE2355208A1 (de) * 1973-03-16 1974-09-19 Lehigh Press Verfahren und vorrichtung zum verpacken

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1019963A (en) * 1961-11-04 1966-02-09 Bodet Jean Augustin A package of pellets and apparatus for producing same
DE2230115A1 (de) * 1972-06-21 1974-01-10 Hans Josef Kitz Verpackungsvorrichtung
DE2355208A1 (de) * 1973-03-16 1974-09-19 Lehigh Press Verfahren und vorrichtung zum verpacken

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