EP3129224A1 - Stratifié, destiné en particulier à la production de matériau de couvercle, procédé de fabrication de celui-ci et matériau de couvercle constitué d'un tel stratifié - Google Patents

Stratifié, destiné en particulier à la production de matériau de couvercle, procédé de fabrication de celui-ci et matériau de couvercle constitué d'un tel stratifié

Info

Publication number
EP3129224A1
EP3129224A1 EP15703016.4A EP15703016A EP3129224A1 EP 3129224 A1 EP3129224 A1 EP 3129224A1 EP 15703016 A EP15703016 A EP 15703016A EP 3129224 A1 EP3129224 A1 EP 3129224A1
Authority
EP
European Patent Office
Prior art keywords
layer
plastic layer
laminate
plastic
range
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Withdrawn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
EP15703016.4A
Other languages
German (de)
English (en)
Inventor
Karoline Knackert
Arno Holzmüller
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.)
Huhtamaki Flexible Packaging Germany GmbH and Co KG
Original Assignee
Huhtamaki Flexible Packaging Germany GmbH and Co 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 Huhtamaki Flexible Packaging Germany GmbH and Co KG filed Critical Huhtamaki Flexible Packaging Germany GmbH and Co KG
Publication of EP3129224A1 publication Critical patent/EP3129224A1/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Withdrawn legal-status Critical Current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
    • B32B27/32—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
    • B32B27/06—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
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles

Definitions

  • the invention relates to a laminate according to the preamble of claim 1, a method for producing such a laminate according to the preamble of claim 11, a lidboard produced with such a laminate according to the preamble of claim 14 and the use of the laminate according to the preamble of claim 15 .
  • Laminates are needed for a variety of applications, including as a lidstock for making lid boards.
  • cover boards have been made in the past of different materials, with an essential aspect in producing a cover plate in a puncture and tear and tear strength of the lid of the underlying material.
  • prior art lidding plates were originally made by using a relatively thick aluminum tape having a thickness in the range of 30 microns to over 70 microns, imprinted on one side and heat seal lacquer on the opposite side over which the lidstock was sealed with the container to be sealed.
  • Such aluminum cover boards have proved to be disadvantageous, since for the production of such boards a very high demand for aluminum is necessary in order to produce a lid with a sufficient thickness can, the sufficient rigidity and flatness and puncture resistance of Cover provided. Due to the high aluminum requirement, such covers were therefore expensive to manufacture and disadvantageous in terms of their tear propagation and tear resistance.
  • cover materials for cover plates were also made of other materials, such as a composite of a thinner aluminum foil, a polymer, a second aluminum foil and a sealing medium, via which the lid plate was in turn connected to the container to be sealed.
  • a composite of a thinner aluminum foil, a polymer, a second aluminum foil and a sealing medium via which the lid plate was in turn connected to the container to be sealed.
  • pure oriented polypropylene pure oriented polyamide or pure or metallized polyethylene terephthalate was also used according to the prior art, wherein in each case a sealing medium was again provided as a contact material with the container edge to be closed.
  • the invention is based on the object to provide an alternative material available, from which lid boards can be produced with a sufficient puncture resistance cost and avoiding the above-mentioned disadvantages.
  • This object is achieved by a laminate according to claim 1, a method for producing such a laminate according to claim Ii, a lid board produced from such a laminate according to claim 14 and the use of such a laminate according to claim 15.
  • the object is achieved by a laminate, in particular for the production of cover material, for example for cover boards, wherein the laminate has a layer-like structure, wherein between a first plastic layer and a second plastic layer, a single- or multi-layer polymer layer is arranged, which is connected to the first plastic layer and the second plastic layer, optionally each by means of an adhesion promoter or by means of a primer, and wherein the Laminate at least in sections, a sealing layer, in particular a heat-sealing layer, and / or a layer of a pressure-sensitive adhesive, such as a PSA adhesive which forms an outermost layer of the laminate on one side of the laminate.
  • a sealing layer in particular a heat-sealing layer
  • a pressure-sensitive adhesive such as a PSA adhesive which forms an outermost layer of the laminate on one side of the laminate.
  • this sealing layer and / or the layer which comprises a pressure-sensitive adhesive it is again possible to produce a tight connection with the container to be closed, which in turn can preferably be separated, for example peelably, and as desired, for example in the case of at least partially using a PSA adhesive , reclosable is formed.
  • the sealing layer, or the adhesive can not be applied over the entire surface, but only at those points of the cover material which are connected to the container to be sealed, resulting in a significant saving of sealing and / or adhesive Contributes material.
  • the polymer layer and / or the first plastic layer and / or the second plastic layer is formed either one-layer or multi-layer, these layers may preferably have up to 3 layers or up to 5 layers or up to 7 layers in a multi-layered construction, but each also a larger number of layers within the scope of the invention.
  • adhesive, adhesion promoter or primer may be provided as needed, wherein the respective adhesive, primer or primer layers in the aforementioned number of layers not be counted.
  • the individual layers of the polymer layer may also be directly, i. without intermediate adhesive, adhesion promoter or primer, abut each other and be prepared for example by coextrusion.
  • Both the first plastic layer and / or the second plastic layer and the polymer layer may according to the invention be mono- or biaxially oriented, wherein the respective stretching ratios may be substantially identical, for example if the lid material was first produced by coextrusion, or may be different, for example, if the Inventive cover material by connecting already prefabricated layers, respectively layers, is produced. In the latter case, the stretching directions of the individual layers, or layers, may differ, whereby a tear strength and puncture resistance of the lid material according to the invention is adjustable. In the case of production of the cover material by coextrusion, the stretching direction of all coextruded layers is identical.
  • the material of the first plastic layer and the second plastic layer is selected according to the invention from a
  • Polyester especially polyethylene terephthalate
  • HDPE high density polyethylene
  • LDPE low density polyethylene
  • the material of the polymer layer (40) is a polyolefin, namely polypropylene or polyethylene or a mixture of both, which according to one embodiment of the invention may be mono- or preferably biaxially oriented. It should be noted that when using a polyolefin according to the invention polypropylene is preferred over polyethylene, but in particular also HDPE and / or LDPE can be used.
  • an adhesion promoter, adhesive or primer is provided between the first plastic layer and the optionally multilayered polymer layer and / or between the second plastic layer and the optionally multilayered polymer layer.
  • this can be dispensed with if the respective substance combinations of first plastic layer and polymer layer and / or second plastic layer and polymer layer also ensure sufficient adhesion or adhesive strength to one another without adhesion promoter or primer.
  • an adhesion promoter or primer can also be arranged in each case between the respective layers of first plastic layer and polymer layer and second plastic layer and polymer layer. This offers, for example, the advantage of an optimized and adjustable adhesion of the individual layers to one another, whereby the puncture resistance of the laminate according to the invention, or the cover plate produced therefrom, can be further improved.
  • the first and the second plastic layer has a substantially identical thickness, which is in the range of 2 ⁇ m to 40 ⁇ m, preferably in the range of 3 ⁇ m to 20 ⁇ m and particularly preferably in the range of 4.5 ⁇ m to 15 ⁇ m pm is.
  • the laminate is constructed asymmetrically with respect to its overall layer sequence or with respect to the first and the second plastic layer, wherein in particular the first and the second plastic layer have a different thickness, in each case in the range of 2 pm to 40 pm in the range of 3 pm to 20 pm, and more preferably in the range of 4.5 pm to 15 pm.
  • the polymer layer in turn has a thickness, or overall thickness, in the range from 5 ⁇ m to 80 ⁇ m, preferably in the range from 8 ⁇ m to 60 ⁇ m, and according to the invention particularly preferably has a thickness in the range from 10 ⁇ m to 40 ⁇ m.
  • an adhesion promoter or adhesive is used, this has in the composite a single layer thickness in the range of 1.5 pm to 10 pm, while a coating weight of a primer per layer in the range of 0.01 grams to 1.5 Grams of dry substance of the primer per square meter application area is used.
  • Both the primer or adhesive and the primer can be arranged either over the entire surface or in the form of a predetermined pattern between the respective layers. In this way, ie in the case of a pattern or line application and in particular also by the choice of the adhesion promoter, adhesive or primer, it is possible to give the laminate according to the invention a certain inherent flexibility.
  • the polyester for example, a metallized polyester and / or a polyester can be used, which is coated with alumina and / or silica and thus in addition to the barrier, which provides the polyester itself, has a further barrier layer consisting of said alumina and / or silica.
  • Ethylene vinyl alcohol copolymer (EVOH), polyamide (PA), in particular aromatic and / or partially aromatic polyamide, or mixtures thereof, mixtures of polyamide (PA), in particular aromatic and / or partially aromatic polyamide, may also be used as further barrier layer materials with which the polyester may be coated , or mixtures thereof with ethylene vinyl alcohol copolymer (EVOH) and / or polyacrylonitrile (PAN), polyethylene terephthalate (PET) or polyacrylonitrile (PAN) in question.
  • EVOH ethylene vinyl alcohol copolymer
  • PAN polyacrylonitrile
  • PET polyethylene terephthalate
  • PAN polyacrylonitrile
  • the barrier layer according to the invention also acrylhal- term organic-inorganic barrier layer, such as a ORMOCER® ® - -Migrationsbarrieretik be (registered trademark of the Fraunhofer Society for the Advancement of Applied Research).
  • ORMOCER® ® - -Migrationsbarrieretik be registered trademark of the Fraunhofer Society for the Advancement of Applied Research.
  • At least one of the plastic layer (s) at least one side, preferably on the outside, ie in the direction of the sealing layer or the subsequent filling, embossed and / or matted and / or shiny, in particular high gloss, formed.
  • both plastic layers as well as both sides of the plastic layers, each independently, embossed and / or matted and / or shiny, in particular high gloss may be formed.
  • embossing can be achieved here that from the Laminate, respectively cover material, produced cover plates can be easily separated and do not adhere to each other.
  • a matting or glossy design of the respective plastic layer (s) the visual appearance, even after opening the package on the inside of the lid material can be optimized, it being possible to make the laminate according to the invention transparent or partially transparent.
  • an essential step of the method according to the invention is that in a first step a first plastic layer is coated, in particular laminated, with a polymer layer, in particular in the form of an extrusion coating layer. is applied and on the polymer layer on the other side in a second step, a second plastic layer and connected to the polymer layer.
  • the first plastic layer, the optionally multilayer polymer layer and the second plastic layer can be coextruded together, so that as a result the entire cover material according to the invention is coextruded.
  • Coextrusion can if desired, an extrudable adhesion promoter (50) or primer (50 ') is extruded between the first plastic layer (20) and the optionally multilayered polymer layer (40) and / or between the second plastic layer (30) and the optionally multilayered polymer layer (40).
  • an adhesion promoter or primer between the first plastic layer and the polymer layer as well as between the polymer layer and the second plastic layer can take place according to the desire and / or adhesion requirement of the respective one-layer layers and depends on the respective material and state pairing of the first plastic layer and the polymer layer or the second plastic layer and the polymer layer, as stated above.
  • the first step and the second step are carried out substantially simultaneously, wherein the optionally multilayer polymer layer simultaneously or quasi simultaneously on one side with a first plastic layer and on the other side with a second plastic layer and optionally coated with adhesion promoter or primer.
  • a cover plate according to claim 14 which is made of a laminate according to the above statements and consists of such a laminate.
  • the object of the invention is also achieved by the use of such a laminate for producing cover material, in particular in the form of roll goods, and / or for the production of cover plates according to claim 15.
  • FIG. 1 shows a schematic representation of a laminate 10 according to the invention, which consists of a first plastic layer 20, a second plastic layer 30 and a polymer layer 40 embedded between the first plastic layer 20 and the second plastic layer 30.
  • a layer of an adhesion promoter 50 or a primer 50 ' is arranged between the first plastic layer 20 and the polymer layer 40.
  • a layer of an adhesion promoter 50 or a primer 50 ' is provided between the polymer layer 40 and the second plastic layer 30.
  • the adhesion promoter 50 or primer 50 'optimizes the bond between the polymer layer 40 and the two respectively adjacent first and second plastic layers 20 and 30.
  • a sealing layer 60 is further provided as the outermost layer, with which a connection can be made with a container to be closed, when the laminate has been further processed into a cover plate. Such further processing can be done for example by punching.
  • the first plastic layer 20 may be made of the same material as the second plastic layer 30, wherein the polymer layer is preferably made of a polyolefin, such as polyethylene or preferably polypropylene.
  • the polymer layer can hereby be mono- or preferably biaxially oriented.
  • material for the first and the second plastic layer polyethylene terephthalate, metallized polyethylene terephthalate, oriented polyamide or oriented polypropylene is used according to the invention.
  • polyamide is preferably biaxially oriented, or o oriented polypropylene / adhesion promoter / polymer layer / adhesion promoter / oriented polypropylene,
  • oriented polypropylene is preferably biaxially oriented.
  • a further asymmetric laminate structure according to the invention can be constructed, for example, as follows: o Polyethylene terephthalate barrier layer, which is coated with silicon oxide

Landscapes

  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un stratifié, destiné en particulier à la production de matériau de couvercle, le stratifié (10) ayant une structure en couches, entre une première couche de matière plastique (20) et une seconde couche de matière plastique (30) étant disposée une couche de polymère (40) qui est reliée à la première couche de matière plastique (20) et à la seconde couche de matière plastique (30), éventuellement à chaque fois au moyen d'un agent de liaison (50) ou au moyen d'un primaire (50*) et qui comporte par endroits au moins une couche d'étanchéité (60), en particulier d'une couche thermoscellable et/ou une couche d'un adhésif sensible à la pression (PSA), qui forme sur un côté du stratifié (10) une couche extérieure du stratifié (10). L'invention concerne également un procédé de fabrication d'un tel stratifié, une plaque de couvercle constituée d'un tel stratifié et l'utilisation d'un tel stratifié sur des rouleaux servant à la production de panneaux de couvercle.
EP15703016.4A 2014-04-08 2015-01-26 Stratifié, destiné en particulier à la production de matériau de couvercle, procédé de fabrication de celui-ci et matériau de couvercle constitué d'un tel stratifié Withdrawn EP3129224A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102014104988 2014-04-08
DE102015100106.3A DE102015100106A1 (de) 2014-04-08 2015-01-07 Laminat, insbesondere zur Herstellung von Deckelmaterial, Verfahren zu dessen Herstellung sowie Deckelmaterial aus einem solchen Laminat
PCT/EP2015/051493 WO2015154892A1 (fr) 2014-04-08 2015-01-26 Stratifié, destiné en particulier à la production de matériau de couvercle, procédé de fabrication de celui-ci et matériau de couvercle constitué d'un tel stratifié

Publications (1)

Publication Number Publication Date
EP3129224A1 true EP3129224A1 (fr) 2017-02-15

Family

ID=54146522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15703016.4A Withdrawn EP3129224A1 (fr) 2014-04-08 2015-01-26 Stratifié, destiné en particulier à la production de matériau de couvercle, procédé de fabrication de celui-ci et matériau de couvercle constitué d'un tel stratifié

Country Status (3)

Country Link
EP (1) EP3129224A1 (fr)
DE (1) DE102015100106A1 (fr)
WO (1) WO2015154892A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016086937A1 (fr) * 2014-12-02 2016-06-09 Danapak Flexibles A/S Feuille formant couvercle, procédé de fabrication, et emballage
DE102024125927A1 (de) * 2024-09-10 2026-03-12 Huhtamaki Flexible Packaging Germany Gmbh & Co. Kg Sterilisierfähiges Barriereschichtlaminat sowie Verfahren zur Herstellung des Laminats und dessen Verwendung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69231146T2 (de) * 1991-12-03 2001-02-15 Hoechst Trespaphan Gmbh Kunststoffolien
US20100015423A1 (en) * 2008-07-18 2010-01-21 Schaefer Suzanne E Polyamide structures for the packaging of moisture containing products

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10113281C1 (de) * 2001-03-16 2002-10-02 Trespaphan Gmbh Bedruckbare Polypropylenfolie mit Antibeschlageigenschaften
ATE353759T1 (de) * 2003-12-09 2007-03-15 Amcor Flexibles Europe As Autoklave laminate mit antimigrationsbarriereschicht
DE102004055323A1 (de) * 2004-11-16 2006-05-18 Cfs Kempten Gmbh Transparente tiefziehfähige Folien mit Antifog-Eigenschaften
EP1905577A1 (fr) * 2006-09-28 2008-04-02 Alcan Technology & Management Ltd. Embalage tubulaire en film multicouche
DE102006056778A1 (de) * 2006-12-01 2008-06-05 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Verfahren zum Herstellen eines mehrschichtigen Laminats
DE102011107946A1 (de) * 2011-07-20 2013-01-24 Huhtamaki Forchheim Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Eine Mehrschichtfolie mit hoher Weiterreißfestigkeit und geringem Schrumpf

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69231146T2 (de) * 1991-12-03 2001-02-15 Hoechst Trespaphan Gmbh Kunststoffolien
US20100015423A1 (en) * 2008-07-18 2010-01-21 Schaefer Suzanne E Polyamide structures for the packaging of moisture containing products

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2015154892A1 *

Also Published As

Publication number Publication date
WO2015154892A1 (fr) 2015-10-15
DE102015100106A1 (de) 2015-10-08

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