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
  • 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
  • B65D5/563—Laminated linings; Coatings
• • 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
  • B65D5/62—External coverings or coatings
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
  • Y02W30/00—Technologies for solid waste management
  • Y02W30/50—Reuse, recycling or recovery technologies
  • Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging

Definitions

• the present invention relates to a method for producing containers, in particular also for absorbing liquids such as milk or fruit juices, and to a container produced by this method.
• containers For the packaging of liquids such as milk or fruit juices, very large quantities of containers are used, which usually consist of laminated cardboard or cardboard with a liner made of aluminum foil in order to make the container liquid-tight and often gas-tight. Of course, such containers can also be used to hold other materials and solid materials, whereby the dense inner skin is often not necessary. What these containers have in common is that they are usually relatively heavy and, above all, that they are not recyclable.
• 1 to 1e show schematically in a flow diagram the manufacturing process of a container
• 2 shows, on an enlarged scale, a section of a container according to the invention
• FIG. 4 shows a section of a container according to the invention.
• the carrier 1 shows a preferred production method for containers for holding liquids. What is essential for this method and the container resulting therefrom is the use of a carrier 1 which, during processing, is brought together with an outer shell 2 in order then to successively form the container. Both the carrier 1 and the outer casing 2 are preferably supplied in rolls and are only combined with one another in the method according to the invention. This also applies to the inner skin 3, which is necessary if the container is to be used for liquids.
• the carrier 1 consists of a plastic film, the thickness of which can vary depending on the intended use. In order to save weight, the carrier film is provided with perforations 4 and 5, as well as with kinks 6 and 7.
• the carrier material is given a three-dimensional structure by means of embossing, such as this is evident from the pictogram 8.
• the carrier material is then separated into individual carrier pieces 9, as represented by the symbolic scissors 10.
• the carrier pieces 9 are placed on the Büllen film 2, sealed with this and transported on.
• the inner skin film 3 is then applied and sealed at the edges.
• the next step is to form a U-shaped tube with subsequent separation and sealing on both sides, as is symbolically represented by the pictogram 11.
• the next step as shown in FIG.
• FIG. 1a the two axes 12 and 13 are folded, sealed and cut off, the axis 13, ⁇ .
• Fig. 1a can be designed as a pull tab.
• FIG. 1b the container 18 thus closed and closed on one side is then filled (FIG. 1b), for example with milk, fruit juice or wine, and then the side that later forms the bottom is sealed (FIG. 1c); then the two axes 16 are folded over and also sealed (FIG. 1d).
• the container is then turned over, as indicated by arrow 17, and finally the finished, filled container 18 according to FIG. 1e is obtained.
• This container is now considerably lighter than a conventional container made of cardboard, while it has at least the same rigidity as previously known containers.
• the perforations, re ⁇ p. the remaining parts of the carrier are easily adapted to the intended use and the size of the container in order to achieve optimum rigidity.
• Another great advantage is that the carrier, which makes up a very large proportion of the weight of the container, is easily recyclable in order to serve as a starting material for its manufacture. According to known chemical and physical separation processes, it is easily possible to prepare the used container material in order to recycle it.
• the container can also hold other substances, the inner skin, in particular in the case of larger ones Solids such as nuts or pasta is not necessary.
• the outer shell which can also consist of a thin plastic film or of paper, can be printed by known methods. In order to save weight, perforation of the same is also carried out when using cardboard as the carrier, while three-dimensional embossing of the same is only possible to a limited extent. If the rigidity of the carrier material is not sufficient, a reinforcing band 19 can be used, which can be inserted into the working process from the roll after the U-shaped bending of the container material.
• connection between the carrier and the outer shell can take place, as described, after the separation and before the U-shaped bending, or else during the sealing and separation of the containers.
• gluing can also be carried out anywhere or at certain points.
• FIG. 2 shows a section through a finished container 18 and it can be seen that the inner skin and the outer shell have each been combined and sealed together.
• 3 shows that the two spikes 20 and 20a of the inner skin 3 come to lie on one another in order to be able to be sealed to one another in a liquid-tight manner, while the two outer-shell spikes 20, 20a are placed over them to form a spool 16.
• FIG. 4 clearly shows that the embodiment which uses a three-dimensionally embossed plastic film as the carrier can achieve great rigidity if the outer shell is connected to the carrier, while FIG. 1 shows that only the most necessary material is used to save as much weight and material as possible to be able to.
• FIG. 4 clearly shows that the embodiment which uses a three-dimensionally embossed plastic film as the carrier can achieve great rigidity if the outer shell is connected to the carrier, while FIG. 1 shows that only the most necessary material is used to save as much weight and material as possible to be able to.
• the carrier can be pre-embossed in such a way that the edges 21 are rounded, which reduces the risk of injury and tearing.
• the carrier can be pre-embossed and punched in such a way that the tearing is facilitated.
• the container 18 shown in the exemplary embodiment shows the most common cuboid shape, but the invention is not restricted to this. In particular, hexagonal or round containers can also be produced using the above method, the dimensions also not playing a role.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Packages (AREA)
• Cartons (AREA)
• Containers And Plastic Fillers For Packaging (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=4199559

Family Applications (1)

Country Status (5)

Cited By (1)

Citations (3)

• 1988
  • 1988-03-15 CH CH975/88A patent/CH677651A5/de not_active IP Right Cessation
• 1989
  • 1989-03-08 EP EP89902739A patent/EP0386157A1/de not_active Withdrawn
  • 1989-03-08 WO PCT/CH1989/000042 patent/WO1989008585A1/de not_active Application Discontinuation
  • 1989-03-08 JP JP1502531A patent/JPH02503418A/ja active Pending
  • 1989-03-14 CN CN89101361A patent/CN1035794A/zh active Pending

Patent Citations (3)

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