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EP0229984A2 - Emballage à parois de verre pour contenus pouvant être versés - Google Patents

Emballage à parois de verre pour contenus pouvant être versés Download PDF

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Publication number
EP0229984A2
EP0229984A2 EP86117296A EP86117296A EP0229984A2 EP 0229984 A2 EP0229984 A2 EP 0229984A2 EP 86117296 A EP86117296 A EP 86117296A EP 86117296 A EP86117296 A EP 86117296A EP 0229984 A2 EP0229984 A2 EP 0229984A2
Authority
EP
European Patent Office
Prior art keywords
glass
side walls
lid
pack
pack according
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.)
Granted
Application number
EP86117296A
Other languages
German (de)
English (en)
Other versions
EP0229984A3 (en
EP0229984B1 (fr
Inventor
Wilhelm Reil
Erwin Dr. Rer. Nat. Wartenberg
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Pak Finance and Trading SA
Tetra Alfa Holdings SA
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 Tetra Pak Finance and Trading SA, Tetra Alfa Holdings SA filed Critical Tetra Pak Finance and Trading SA
Priority to AT86117296T priority Critical patent/ATE62195T1/de
Publication of EP0229984A2 publication Critical patent/EP0229984A2/fr
Publication of EP0229984A3 publication Critical patent/EP0229984A3/de
Application granted granted Critical
Publication of EP0229984B1 publication Critical patent/EP0229984B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • 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
    • B65D15/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials
    • B65D15/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums
    • B65D15/04—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums with curved, or partially curved, walls made by winding or bending paper
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0015—Upper closure of the 41-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0093—Membrane

Definitions

  • the invention relates to a pack for flowable filling goods, consisting of side walls and end walls connected to one another via at least one longitudinal sealing seam, which are attached to the ends of the tube and form the bottom and lid of the pack, the side walls being made of carrier material coated at least on one side with thermoplastic plastic, e.g. Cardboard consist, and the bottom of the pack is formed from a separate, essentially flat wall piece and sealed at the lower edge of the tubular side walls.
  • thermoplastic plastic e.g. Cardboard consist
  • the bottom of the pack is formed from a separate, essentially flat wall piece and sealed at the lower edge of the tubular side walls.
  • the lid of the known package consists of thermoplastic material without a backing material, is injection molded along its outer edge on the side walls and has a pouring device.
  • Another package is also known, the side walls of which also consist of coated cardboard, but in which the base and lid are made of thermoplastic material without a carrier material.
  • This known pack is designed in the ready-to-fill state such that the lid is injection-molded along its four edges, but the bottom is only molded on the side walls along one edge to fill the pack.
  • the cross-section of this pack and the lid and base are essentially rectangular.
  • the base is square, so that there is a certain volume reduction compared to the round lid, so that the packaging material for the contents is not yet optimally used.
  • a disadvantage it has been found in all packages of plastic trays or lids that a certain gas permeability is unavoidable so easily AASS perishable fillings by prolonged storage period g e- are at risk. In special cases, the sterilization of the known packs can sometimes only be carried out with great effort. While the side walls are formed from flat sheets which can be coated relatively easily with gas-impermeable materials, for example with metal foils, this project on the lid and base is associated with considerable difficulties.
  • Certain filling goods are therefore transported in the known glass bottles, but which have many known disadvantages, such as cleaning, closing and opening and the effort by weight.
  • the specialist must choose a thick wall for glass containers so that the bottle used for rough operation during transport, washing and filling does not break.
  • glass is considered a very ideal packaging material when you consider the environmental impact in particular and the high recycling value, i.e. recyclability is taken into account.
  • the paper packaging is often preferred to a glass bottle if one considers the enormous weight difference and the associated transport costs; also the storage of reusable glass bottles.
  • the weight of a durable 1 liter bottle is about 360 g.
  • the invention is therefore based on the object of providing a light, stable and inexpensive pack with the features of known packs mentioned at the outset, but whose material is better utilized for the filling volume and is also easier to reprocess.
  • a gas-tight packing should also be made possible, which is easy to sterilize and remains aseptic for a long time.
  • the bottom and lid are made of glass and are welded liquid-tight to the tubular side walls and that the lid has a closable pouring opening.
  • the invention is an unusual material combination of paper and glass. Instead of the usual plastics for the bottom and lid, glass is used, which the expert in the past and sometimes still believes cannot be welded with plastic-coated paper. It is known, however, to close glass bottles instead of crown caps or the like by means of thermoplastic materials. Here, for example, adhesion promoters have been applied to the edge of the bottle neck, but improvements were considered to be urgently necessary, on the one hand because of the difficult process steps and on the other hand because of the contamination of the food in the bottles Plastic can be achieved. In principle, even with liquid fillings, bottles could already be closed by sealing. However, it has hitherto been unknown to provide a package consisting essentially of plastic-coated paper with a glass lid or base.
  • a paper tube has already been sealed with aluminum on the end faces; it should be noted here, however, that metals are deformable, which is why the bases and lids, which are made of metal, were also connected to the paper sleeve by flanging and clamping. Such techniques are not possible when using glass instead of metal. In addition, the expert had to fear the breakage of the glass lid or bottom when pressed against the paper sleeve.
  • the invention breaks new ground here in order to create a much lighter (lower weight) and nevertheless stable pack.
  • a tubular paper sleeve which is open at the ends or end faces, is produced in a known manner on a paper web coated at least on one side with plastic.
  • the glass bases and lids kept in stock are connected to this sleeve, adjusted and welded.
  • An induction welding device can be used here, for example. Because the lid has the pouring opening, the package produced in this way can be filled and subsequently closed.
  • the glass is pressed glass. Up to 90% of such a material can be regarded as recycled glass. The environmental impact on the packaging materials is therefore remarkably low. It is irrelevant for the manufacture and function of the package according to the invention if small stones, streaks or other impurities are enclosed in the glass lid and the glass quality is therefore lower, so to speak. Rather, the plant or lid (or both) can be inexpensively manufactured by simpler systems and the use of recycled glass by the manufacturer of liquid packs.
  • the glass is toughened according to the invention.
  • This tempering is known and easy to carry out, there are many toughened drinking glasses, car glass is toughened, for example, etc.
  • the glass lids and bottoms are passed through a liquid on a conveyor belt, which leads to the toughening and hardening.
  • Another advantage of the treatment process is the reduction in weight.
  • the prestress also achieves better strength, so that rougher production machines can also be used, in which the paper tube is pressed against the glass during the manufacture of the empty liquid pack for sealing.
  • the materials for the tubular side walls ie the sleeve, namely paper or cardboard, coated at least on one side with plastic, are used for the two rigid glass plates or glass panes, so to speak, created a soft suspension, so that the package is not only well processed, but also filled, transported and can be handled by the end user without danger.
  • the two glass plates are hung on the tubular side walls in a manner comparable to that of a metal oscillator. This unexpected combination of glass and paper therefore also results in the new package being extremely stable.
  • the glass is colored. These staining processes for glass are also known per se. In combination with the opaque, tubular side wall, however, this advantageously results in a high level of light protection also from the ends or end faces of the packaging.
  • the pouring opening in the lid a g in the axial direction of the pack outwardly projecting Ringkra s, and on the outer periphery of the lid and / or of the floor lying in the axial direction of a sealing surface is arranged.
  • the configuration of the pouring opening described above not only provides a good possibility of filling through the open pouring opening, but also makes closing much easier because the outwardly projecting ring collar on the pouring opening can be easily reached by a closing device.
  • the structure of the closing device can be simplified and the method can be developed with a higher output.
  • a sealing surface is arranged on the outer circumference of the lid and / or bottom improves the adhesive force between the glass part and the paper sleeve.
  • this sealing surface will be essentially ring-shaped and have a length of 1 to 7 mm, preferably 2 to 5 mm. Detachment of the glass lid or glass bottom of the filled or empty package from the paper side walls is thus switched off or only possible with a certain amount of force when destroying the pack.
  • a bead and / or a sealing surface lying transversely to the axial direction is / are attached to the outer end of the ring collar, an area enlargement is advantageously achieved at those points to which other parts, plates or disks have to be sealed, e.g. Metal foils, which may be coated, to close the pouring opening.
  • the bead can be easily molded as a casting bead when producing the glass lid. It runs on the ring collar and therefore has a shorter circumference than the above-mentioned sealing surface on the outer circumference of the lid or bottom.
  • a closure lid made of plastic is detachably attached to the ring collar of the pouring opening.
  • This is used primarily for resealability and can be made of polyethylene, for example.
  • An inwardly projecting annular bead is preferably formed on the lower outer edge of the closure cover, so that the closure cover can be snapped onto the ring collar and has a self-holding function.
  • the metal foil is broken open, and after partial pouring, i.e. If the liquid pack is partially emptied, the cap can be snapped back on, so that the contents remaining in the pack are protected against dust and there is also some protection against leakage.
  • tubular sides coat the inside of the walls with a metal foil.
  • aluminum is preferably used again.
  • aseptic milk packaging it is known per se to cover paper side walls with aluminum foil. This also made the side walls gas-tight.
  • cuboid packaging which consist entirely of this coated paper, has therefore often been used.
  • problems already arise as a result of the gas entering through the plastic in particular in the case of packs in which at least one of the end faces is closed by a lid or base made of plastic, problems already arise as a result of the gas entering through the plastic.
  • glass is used instead of plastic according to the teaching of the present invention, then these sealing problems are eliminated.
  • a gas-tight and sterilizable package can therefore also be produced by the measures according to the invention.
  • the sterilization takes place after completion of the package, ie after the glass plates or glass panes have been welded into the soft paper sleeve, ie the tubular side walls made of plastic-coated cardboard and before filling.
  • the finished milk pack is shown in perspective in the open state. It consists of a longitudinal sealing seam 4 (FIG. 10), tubular side walls 1 and end walls made of glass, of which only the cover 5 is shown in FIG. 1, but the bottom 2 is also shown in FIG. 2.
  • the side walls 1 consist of paper or cardboard coated with thermoplastic on both sides and are formed from a flat, preferably printed web which is formed to form the tube and is closed in the manner shown in FIG. 10 with the longitudinal sealing seam 4 to form the sleeve.
  • a plastic strip 6, which runs lengthwise in the direction of the tube axis, is sealed on the inside and forms the edge protection so that liquid cannot penetrate into the free inner edge of the paper, which is protected without plastic, and thus can destroy the paper.
  • Both the bottom 2 and the lid 5 consist of a separate, generally flat wall piece, which is disk-shaped in the round embodiment and plate-shaped in other embodiments.
  • the bottom 2 is sealed on the lower edge 3 of the side walls 1.
  • the annular sealing surface 7 lies on the inside of the sleeve-shaped side wall 1 at the bottom at the edge 3 thereof on the one hand and on the outer circumference of the base 2 on the other hand. So that this sealing surface extending in the direction of the axis 8 of the package has a certain height or length of about 1 to 7 mm, preferably 2 to 5 mm, a bead or groove 9 is formed in the bottom 2 from the plane, which is transverse to axis 8. Through this groove-shaped bead 9, the bottom 2 also receives additional stiffening.
  • Bottom 2 and lid 5 are made of glass, which is preferably colored for light protection and tempered pressed glass.
  • the cover 5 could also have such a V-shaped or trapezoidal ring bead 9 as the base 2, but such an embodiment is not shown in the drawings. Rather, the lid 5 obtains its rigidity from other ring edges or the pouring opening, generally designated 10. This lies in the center of the circular cover 5 and is formed by an annular collar 11 which projects outwards and upwards in the direction of the axis 8 and which has a bead 12 at the top at its extreme end (FIG. 7) or a sealing surface 13 lying transversely to the axial direction 8.
  • the bead 12 in FIG. 7 can also be understood in such a way that it forms such a sealing surface as designated 13 in the other embodiments.
  • the pouring opening is closed at the top and the outside by an aluminum foil 14 coated on both sides with thermoplastic. This is only shown in Figures 2, 8 and 9.
  • the aluminum foil 14 is shown bent downward on the outside of the circumference of the ring collar 11. This was done by means of the closure cover 15 made of polyethylene, which had been detachably attached to the ring collar 11 by placing it over the inwardly projecting ring bead 16 shown in FIG. 9 on the ring collar 11 and over its bead 12 or the annular outer edge of the sealing surface 13 was snapped up.
  • FIG. 9 shows, for example, the state in which the aluminum foil 14 still lies smoothly on the sealing surface 13, namely before the closure cover 15 is snapped on and snapped into place. If you remove the cover 15 afterwards, you have the state shown in FIG.
  • the closure lid 15 may ß Wiederverschlie- to en are used.
  • FIG. 3 shows a first embodiment of the cross section of the cover 5, which can also be found in the representation of FIGS. 1 and 2.
  • the sealing surface 13 which is transverse or perpendicular to the axis 8 of the package, with its outer edge 17, via which the inner bead 16 of the closure cover 15 can snap into place.
  • the ring collar 11 merges from top to bottom from the cylindrical jacket shape into the truncated cone shape, in order then to merge into a plane in the lowest region, so that an annular surface 18 is formed. This is found in essentially all covers 5 except in the embodiment according to FIG. 8.
  • the sealing surface 19 lying in the direction of the axis 8 is formed on the outer circumference of the cover 5, which is ring-shaped and has a height or length of approximately 1 to in the direction of the axis 7 mm and preferably 2 to 5 mm. This achieves a good adhesive force between the glass cover 5 and the paper wall 1.
  • annular surface 20 covering the paper edge is also formed, which lies next to and outside the sealing surface 19. There is also a welded connection between glass and paper. Liquid can therefore not penetrate into the open edge of the paper side wall 1.
  • FIG. 5 shows the good stackability of the covers 5 according to the second embodiment according to FIG. 4. Similarly, other lids are stackable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Closures For Containers (AREA)
  • Glass Compositions (AREA)
  • Sealing Material Composition (AREA)
  • Surface Treatment Of Glass (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
EP86117296A 1986-01-18 1986-12-11 Emballage à parois de verre pour contenus pouvant être versés Expired - Lifetime EP0229984B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86117296T ATE62195T1 (de) 1986-01-18 1986-12-11 Packung fuer fliessfaehige fuellgueter mit glasendwaenden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3601352 1986-01-18
DE19863601352 DE3601352A1 (de) 1986-01-18 1986-01-18 Packung fuer fliessfaehige fuellgueter mit glasendwaenden

Publications (3)

Publication Number Publication Date
EP0229984A2 true EP0229984A2 (fr) 1987-07-29
EP0229984A3 EP0229984A3 (en) 1989-02-22
EP0229984B1 EP0229984B1 (fr) 1991-04-03

Family

ID=6292101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86117296A Expired - Lifetime EP0229984B1 (fr) 1986-01-18 1986-12-11 Emballage à parois de verre pour contenus pouvant être versés

Country Status (6)

Country Link
EP (1) EP0229984B1 (fr)
AT (1) ATE62195T1 (fr)
CA (1) CA1291716C (fr)
DE (2) DE3601352A1 (fr)
ES (1) ES2021273B3 (fr)
NO (1) NO172793C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358083A3 (en) * 1988-09-06 1990-10-17 Tetra Pak Finance & Trading S.A. Package for a food product
WO1999055588A3 (fr) * 1998-04-28 2000-02-17 Packland S A Col de contenant avec son procede de fabrication, et contenant
EP1862392A1 (fr) * 2006-06-01 2007-12-05 Aisapack Holding SA Emballage flexible en matière plastique

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE508716C2 (sv) * 1996-01-15 1998-11-02 Tetra Laval Holdings & Finance Botten för en förpackning med inre övertryck
DE29606191U1 (de) * 1996-04-03 1996-06-20 Thyssen Polymer GmbH, 81671 München Magazinverpackung
DE102005010639A1 (de) * 2005-03-08 2006-09-14 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Verpackungsbehälter, insbesondere dosenartiger Behälter
DE102006013730B4 (de) * 2005-12-15 2010-04-08 Df World Of Spices Gmbh Glas-Kunststoff-Behälter

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE933198C (de) * 1948-10-02 1955-09-22 Bayer Ag Behaelter
DE2210013C2 (de) * 1972-03-02 1982-08-12 Altstädter Verpackungs-Vertriebsgesellschaft mbH, 6102 Pfungstadt Verfahren zur Herstellung einer Verpackung für Flüssigkeiten
US4051992A (en) * 1976-04-30 1977-10-04 Bergstein Packaging Trust Cylindrical display container formed from a flat blank
DE2718574A1 (de) * 1977-04-26 1978-11-02 Honshu Paper Co Ltd Dichtverschluss fuer einen fluessigkeitsbehaelter und verfahren und vorrichtung zu seiner herstellung
DE7723959U1 (de) * 1977-08-01 1977-11-10 Hickisch Eduard Deckel fuer Getraenkedosen
US4311247A (en) * 1979-10-19 1982-01-19 Brockway Glass Company, Inc. Glass container and thermoplastic closure combination
DE3139780A1 (de) * 1981-10-07 1983-04-28 Altstädter Verpackungsvertriebs GmbH, 2000 Hamburg Packung fuer fliessfaehige fuellgueter mit kunststoffdeckel
DE3222180C2 (de) * 1982-06-12 1995-04-27 Altstaedter Verpack Vertrieb Packung für fließfähige Füllgüter und Verfahren zur Herstellung eines Bodenverschlusses bei dieser Packung
DE3345802C2 (de) * 1983-12-17 1986-04-03 Unilever N.V., Rotterdam Zylindrischer Behälter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358083A3 (en) * 1988-09-06 1990-10-17 Tetra Pak Finance & Trading S.A. Package for a food product
WO1999055588A3 (fr) * 1998-04-28 2000-02-17 Packland S A Col de contenant avec son procede de fabrication, et contenant
EP1862392A1 (fr) * 2006-06-01 2007-12-05 Aisapack Holding SA Emballage flexible en matière plastique
WO2007138515A1 (fr) * 2006-06-01 2007-12-06 Aisapack Holding S.A. Emballage flexible en matiere plastique

Also Published As

Publication number Publication date
ATE62195T1 (de) 1991-04-15
EP0229984A3 (en) 1989-02-22
DE3601352A1 (de) 1987-07-23
DE3601352C2 (fr) 1992-02-27
NO870196L (no) 1987-07-20
EP0229984B1 (fr) 1991-04-03
DE3678554D1 (de) 1991-05-08
NO870196D0 (no) 1987-01-16
NO172793B (no) 1993-06-01
ES2021273B3 (es) 1991-11-01
NO172793C (no) 1993-09-08
CA1291716C (fr) 1991-11-05

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