EP2790918A1 - Produit en feuille pour l'emballage de produits dans des emballages scellés, réalisés avec ledit produit - Google Patents

Produit en feuille pour l'emballage de produits dans des emballages scellés, réalisés avec ledit produit

Info

Publication number
EP2790918A1
EP2790918A1 EP12700644.3A EP12700644A EP2790918A1 EP 2790918 A1 EP2790918 A1 EP 2790918A1 EP 12700644 A EP12700644 A EP 12700644A EP 2790918 A1 EP2790918 A1 EP 2790918A1
Authority
EP
European Patent Office
Prior art keywords
film
product
film layer
layer
film product
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Withdrawn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
EP12700644.3A
Other languages
German (de)
English (en)
Inventor
Ingo Putsch
Gerhard SCHOONE
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Priority to EP12700644.3A priority Critical patent/EP2790918A1/fr
Publication of EP2790918A1 publication Critical patent/EP2790918A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/002—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers in shrink films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/9125—Cooling of hollow articles of tubular films internally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0065—Permeability to gases
    • B29K2995/0067—Permeability to gases non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0068—Permeability to liquids; Adsorption
    • B29K2995/0069—Permeability to liquids; Adsorption non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/58—Cuttability
    • B32B2307/581—Resistant to cut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7246—Water vapor barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
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    • B32B2307/7248—Odour barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/746—Slipping, anti-blocking, low friction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B2439/00—Containers; Receptacles
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2813—Heat or solvent activated or sealable
    • Y10T428/2817—Heat sealable
    • Y10T428/2826—Synthetic resin or polymer

Definitions

  • the present invention relates to a film product for the packaging of products in sealed film packaging, a process for the production of a film product and a film package with a packaging space, which is at least partially filled with a product.
  • film products are used to store and transport products, in particular liquids, in sealed film packaging.
  • FFS machines Form, Fill, Seal
  • endless hoses or film webs are mostly used, which can be filled in a common filling and sealing process with cargo or liquids.
  • Such film packages are often consumer packaging, so that, for example, detergent or the like in such a film packaging can be packed.
  • sealing jaws are necessary which seal the film product, in particular individual film layers, with one another to produce a sealed seam
  • the sealing jaws are heated to a sealing temperature in order to melt or melt part of the film product, which requires a certain amount of contact between the sealing jaws and the film product in order to transfer sufficient amounts of heat.
  • An inventive film product for the packaging of products, in particular liquids, pasty and / or free-flowing materials, in sealed film packages has at least two film layers. It is characterized in that the outwardly directed film layer is thermally stable and the inwardly directed film layer is sealable. Furthermore, the two film layers or all film layers of such a film product are produced by a water-cooled blow coextrusion process.
  • the advantages of an asymmetric arrangement of the film layers are combined with the cost-effective production methods of a blow coextrusion process. This is possible according to the invention in that the blow coextrusion process is a water-cooled blow coextrusion process.
  • the film product can be cooled after it has left the extrusion die.
  • This cooling with strong cooling rates means that only to a limited extent or no thermally induced stresses in the composite material of the film layers are produced. By reducing these residual stresses, the curl or curl effect is reduced to a minimum.
  • the desired film composite of an asymmetrical arrangement of the film layers can be produced in this way in a cost-effective blow coextrusion process in a single step, without the disadvantages of such a blow coextrusion process occurring in an asymmetric film composite variant.
  • This combination can save costs in production, since only a single manufacturing step for the film product is necessary.
  • the film product is produced with the desired high quality and, in particular in contrast to expensive lamination processes, can be produced in a single process step by blow coextrusion.
  • An inventive film product can be used in particular in so-called FFS machines.
  • FFS machines By providing a thermally stable layer on the outside and a sealable film layer on the inside, it is possible to work with relatively high sealing temperatures, since the thermally stable layer prevents or reduces adhesion of the material to the sealing jaws of the FFS machine.
  • Such high sealing temperatures can speed up the cycle times of the FFS machine.
  • preferably can be dispensed with a coating of the sealing jaws, in particular by a Teflon tape. This increases not only the cycle time but also the continuous one Operating time of the sealing jaws.
  • a plurality of film layers can be used, wherein at least the outer and the inner film layer are formed in accordance with the invention.
  • thermally stable means that no or only a very slight melting of this material takes place in the region of the sealing temperatures This can be provided, for example, by polyamide or polyamide variants understand that this can be deformed at the desired sealing temperatures and in particular melts.
  • melting temperatures of between about 130 ° C and about 220 ° C are provided for the thermally stable film layer, in particular polyamide.
  • the sealable film layer is in particular polyethylene or similar materials, wherein a melting temperature is provided, for example, between about 90 ° C and about 120 ° C.
  • a water-cooled blow coextrusion process is a process which can also be referred to as an upside-down wet process.
  • an extrusion bubble is formed running from top to bottom, which is in particular water cooled from the outside and / or from the inside.
  • the water preferably comes into direct cooling contact with the material of the respective film layer.
  • the molten material of the film layers preferably leaves the nozzle of such a blow coextruder at a temperature in the range between about 180 ° C and about 260 ° C.
  • water is used for cooling, which preferably has a temperature range between about 5 ° C and about 45 ° C has.
  • an improved runnability in FFS machines can also be provided by the reduced curling effect or the reduced tendency to curl.
  • the individual film layers preferably add up to a total thickness of the film product in the range between about 20 ⁇ and about 1,000 ⁇ , in particular in the range of about 100 ⁇ .
  • the film product can have a wide variety of designs and is in particular a transparent film product. Of course, but the individual film layers bring a variety of different properties with it, the whole as a film product z. As with regard to color or barrier properties bring a corresponding training with it.
  • the film product according to the invention can be further processed into "pouches", for example in FFS machines. Even more complex film packaging, such.
  • a film product according to the invention can be upgraded even further during the filling or even earlier by a printing process.
  • a printing process can take place at higher web speeds or with higher process reliability. This is also advantageous since only a slight to no delay of the printed image on the film product is to be expected.
  • an adhesion promoter layer is arranged between the thermally stable film layer and the sealable film layer.
  • An adhesion promoter as an adhesion promoter layer is to be understood as meaning a material which creates a bond between otherwise difficultly bondable layer materials of the individual film layers.
  • an adhesive layer is disposed between the respective adjacent film layers.
  • such an adhesion promoter layer can have two different sides, so that a polar bond can be formed on one side and a non-polar bond on the other side.
  • the bonding agent layer is preferably also introduced by means of the blow coextrusion process as the third layer of material between the two outer film layers.
  • the thermally stable film layer has at least one of the following materials:
  • Polyester or polyethylene terephthalate (PET) Polyester or polyethylene terephthalate (PET)
  • PE Polyethylene with higher density
  • a variant is used in which at least partially polyamide is provided as material for the thermally stable film layer.
  • the sealable film layer has at least one of the following materials:
  • EVA Ethylene vinyl acetate
  • EAA Ethylene acrylic acetate
  • a further advantage can be achieved in that, in the case of a film product according to the invention, at least one film layer has increased barrier properties, in particular measured in permeability per area and time, with respect to at least one of the following substances:
  • the corresponding film layer can be both the thermally stable and the sealable film layer, as well as an additional film layer. If a multiplicity of different barrier properties is desired, a multiplicity of film layers can accordingly also be arranged between the innermost and outermost film layers. In this case, individual film layers can also have more than one barrier property. Preferably, however, a flexible combination of the individual properties takes place through a combination of the corresponding film layers set by material selection.
  • At least one film layer has one of the following properties:
  • an additional film layer has the advantage that the desired properties of sealability or thermal stability for the two outermost film layers are not impaired by this additional property.
  • a particularly high flexibility of use of a film product according to the invention is possible, since by any Intermediate additional film layers flexibly adapted to the particular application film products can be achieved.
  • the cost intensity for such a film product is reduced, since in all cases, ie for a substantially arbitrarily large number of additional film layers, the same process, namely a blow coextrusion process can be used.
  • a plurality of film layers is superposed, such. B. ten or more film layers.
  • the film layers together have a thickness of between about 20 ⁇ m and about 1,000 ⁇ m, in particular between about 50 ⁇ m and about 200 ⁇ m. Preferably, thicknesses of about 100 ⁇ are provided.
  • a geometrical framework is specified in which film products according to the invention can lie. In this context, a blow coextrusion is particularly simple and inexpensive to carry out.
  • the film product according to the invention is designed as a continuous bag bag or as a film web.
  • the film web is preferably an endless tube bag which has been cut along its longitudinal extent.
  • Another object of the present invention is a process for the production of a film product having at least two film layers, wherein a film layer is thermally stable and a film layer is formed sealable.
  • Such a process is characterized in that the film product is produced by means of water-cooled blowing Coextrusion is produced.
  • a method according to the invention results in particular in a film product according to the present invention, so that the same advantages can be achieved by such a method as have been explained in detail with reference to a film product according to the invention.
  • a method according to the invention can be developed in such a way that it is cooled with water in a temperature range of about 5 ° C. and about 45 ° C.
  • the material can be cooled to a range below about 100 ° C at about 180 ° C to 260 ° C.
  • temperatures of less than about 80 ° C or in particular between about 40 ° C and about 70 ° C are provided as the target cooling temperature.
  • a temperature profile between the core of the material and the surface of the material is generated by the cooling.
  • the above residual temperatures are in particular the maximum temperature in each case in the material.
  • the water for cooling may be modified water, e.g. B.
  • surfactants such as rinsing agents can be used as a modification for the cooling water.
  • Decalcified and / or demineralised water (distilled water) may also be used in the present invention.
  • a further advantage can be achieved by carrying out an air exchange in the interior of the coextrusion bubble in a method according to the invention. This improves the heat dissipation, so that the cooling performance is further improved without additional cooling from the outside. It is also possible that is cooled in a process according to the invention in the interior of a coextrusion bubble with air or water.
  • the additional cooling in particular air cooling, serves to further improve the cooling, so that a reduced final temperature after cooling can be achieved at the same extrusion speed.
  • a film packaging according to the invention is characterized in that at least two film layers surround the packaging space, which are produced by a water-cooled blow coextrusion process, wherein the outwardly directed film layer is thermally stable and the film layer directed into the packaging space can be sealed.
  • a packaging space can also be understood to mean a cavity inside this film packaging.
  • the film layers together preferably form a film composite, which together forms the film product and completely encloses the packaging space.
  • the sealing seam may run along a straight line or along a curve or a curvature.
  • the packaging space is filled with a food, in particular with an oil-containing liquid, and / or with a combustible liquid.
  • a food in particular with an oil-containing liquid, and / or with a combustible liquid.
  • various liquids, in particular a multi-phase filling, is conceivable within the scope of the present invention.
  • An oil-containing liquid is to be understood in particular as cooking oil, for example olive oil.
  • a food is in particular a suitable material for consumption.
  • this film layer may at least partially comprise a film product according to the invention. Furthermore, it is possible that, in the case of a film packaging according to the invention, the film product has been produced in accordance with a method according to the invention. Thus, a film packaging according to the invention brings the same advantages as have been explained in detail with respect to a film product according to the invention and with reference to a method according to the invention.
  • FIG. 1 shows a schematic side view of an upside-down wet process of a method according to the invention
  • Figure 2 shows an embodiment when sealing a novel
  • FIG. 3 a shows a partial representation of a film product according to the invention
  • FIG. 3b shows the partial view according to FIG. 3a in a different temperature situation
  • FIG. 4 a shows a partial representation of a film product according to the invention
  • FIG. 4b shows a detailed representation of FIG. 4a at a different temperature situation
  • FIG. 5a shows an embodiment of a film product according to the invention
  • FIG. 5b shows a further embodiment of a film product according to the invention
  • Figure 5c shows another embodiment of a film product according to the invention.
  • FIG. 6 shows a further embodiment of a film product according to the invention and a film package.
  • FIG. 1 shows schematically a possibility for the production of a film product 10 according to the invention with a method according to the invention.
  • an extrusion blowing device 300 is provided, which has a nozzle 320. From this nozzle 320, various film layers are extruded in coextrusion over each other in coextrusion. The resulting film tube or the resulting extrusion blister is directly the film product 10 and runs from top to bottom as a transport direction.
  • a water cooling 310 is arranged in an annular manner around the film product 10. It includes the coextrusion bubble 90, so to speak.
  • This water cooling 310 has cooling water 312, which can come into direct contact with the extrusion bladder 90 via a cooling gap 314.
  • the cooling is carried out with preferably about 5 ° C to 45 ° C cold water, so that a final final temperature of less than about 100 ° C of the coextrusion blister 90 is achieved.
  • the film product 10 Due to the fact that the film product 10 can be produced much smoother, in particular with a better flatness, it also has better running properties in a so-called FFS machine (form, fill and seal machine). The crucial process is in such a machine, the sealing process, as z. B. Figure 2 is apparent.
  • a sealing device 400 with two sealing jaws 410 is shown.
  • a film product 10 is shown schematically, which already forms a film package 100 in a bag-like manner.
  • the storage space 120 may be filled with a product, e.g. B. be filled with liquid 200.
  • the outer film layer 20a is thermally stable and the inner Film layer 20b sealable.
  • these two sealing jaws 410 are fed to one another. They are heated to a sealing temperature and transfer this temperature to the material of the film product 10. This temperature is preferably below the melting temperature of the thermally stable film layer 20a and sufficient to melt or fusing the sealable film layer 20b. As a result of the melting or melting, the two inner film layers 20b are fused together, so that a material-locking connection with a sealed seam is formed. At the same time, the thermally stable outer film layer 20a protects the sealing jaw 410 against contamination by molten material. Accordingly, the sealing jaws 410 can be used directly and need not be protected, e.g. B. by means of a Teflon tape.
  • FIGS. 5a to 5c show various embodiments of a film product 10 according to the invention.
  • the film product 10 is provided with only two film layers 20a and 20b, which have been produced together in a coextruded manner. This can be seen in Figure 5a wherein the film layer 20a is outwardly directed and thermally stable while the inner film layer 20b is sealably formed.
  • FIG. 5b shows a variant in which an adhesion promoter layer 20c is additionally provided between the two outer film layers 20a and 20b.
  • This bonding agent layer 20c serves, in particular, to enable the two other film layers 20a and 20b to be firmly and securely joined together in the desired manner, even if the combination of materials is unfavorable.
  • FIG. 6 shows an embodiment of a film package 100 according to the invention. This has film products 10 which together surround a packaging space 120 in a pouch-like manner. This packaging space 120 is at least partially filled with liquid 200 and closed at the top and bottom, each with a sealed seam 1 10. The generation of these sealing seams is z. B. by a method according to Figure 2 has been performed.
  • thermostable film layer sealable film layer adhesion promoter layer further film layer

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un produit en feuille (10) pour l'emballage de produits, en particulier de liquides (200), de matières pâteuses et/ou coulantes, dans des emballages scellés (100), réalisés avec ledit produit. Ledit produit en feuille comporte au moins deux couches (20a, 20b), la couche (20a) dirigée vers l'extérieur étant thermiquement stable et la couche (20b) dirigée vers l'intérieur étant apte à être scellée. Selon l'invention, les deux couches (20a, 20b) de la feuille sont réalisées par un procédé de coextrusion-soufflage avec refroidissement à eau.
EP12700644.3A 2011-12-15 2012-01-11 Produit en feuille pour l'emballage de produits dans des emballages scellés, réalisés avec ledit produit Withdrawn EP2790918A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12700644.3A EP2790918A1 (fr) 2011-12-15 2012-01-11 Produit en feuille pour l'emballage de produits dans des emballages scellés, réalisés avec ledit produit

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11193817 2011-12-15
EP12700644.3A EP2790918A1 (fr) 2011-12-15 2012-01-11 Produit en feuille pour l'emballage de produits dans des emballages scellés, réalisés avec ledit produit
PCT/EP2012/050381 WO2013087226A1 (fr) 2011-12-15 2012-01-11 Produit en feuille pour l'emballage de produits dans des emballages scellés, réalisés avec ledit produit

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Publication Number Publication Date
EP2790918A1 true EP2790918A1 (fr) 2014-10-22

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US (1) US10046896B2 (fr)
EP (1) EP2790918A1 (fr)
CN (1) CN104169083A (fr)
CA (1) CA2859257A1 (fr)
WO (1) WO2013087226A1 (fr)

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US20170306563A1 (en) * 2016-04-20 2017-10-26 Clarcor Inc. Fine fiber pulp from spinning and wet laid filter media
JP2018008721A (ja) * 2016-07-13 2018-01-18 興人フィルム＆ケミカルズ株式会社 二軸延伸ポリブチレンテレフタレート系フィルムを含む冷凍食品用包材
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WO2013087226A1 (fr) 2013-06-20
CA2859257A1 (fr) 2013-06-20
US20140363544A1 (en) 2014-12-11
CN104169083A (zh) 2014-11-26
US10046896B2 (en) 2018-08-14

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