WO2022043193A1 - Method for connecting at least two substrates and package consisting at least partially of two substrates connected to one another - Google Patents

Method for connecting at least two substrates and package consisting at least partially of two substrates connected to one another Download PDF

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Publication number
WO2022043193A1
WO2022043193A1 PCT/EP2021/073086 EP2021073086W WO2022043193A1 WO 2022043193 A1 WO2022043193 A1 WO 2022043193A1 EP 2021073086 W EP2021073086 W EP 2021073086W WO 2022043193 A1 WO2022043193 A1 WO 2022043193A1
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WO
WIPO (PCT)
Prior art keywords
substrates
layer
substrate
cover layer
base material
Prior art date
Application number
PCT/EP2021/073086
Other languages
German (de)
French (fr)
Inventor
Harman VORENKAMP
Original Assignee
Mayr-Melnhof Karton Ag
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 Mayr-Melnhof Karton Ag filed Critical Mayr-Melnhof Karton Ag
Priority to EP21766147.9A priority Critical patent/EP4204213A1/en
Publication of WO2022043193A1 publication Critical patent/WO2022043193A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1406—Ultraviolet [UV] radiation
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/76—Making non-permanent or releasable joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/434—Joining substantially flat articles for forming corner connections, fork connections or cross connections
    • B29C66/4342—Joining substantially flat articles for forming corner connections, e.g. for making V-shaped pieces
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/434—Joining substantially flat articles for forming corner connections, fork connections or cross connections
    • B29C66/4342—Joining substantially flat articles for forming corner connections, e.g. for making V-shaped pieces
    • B29C66/43421—Joining substantially flat articles for forming corner connections, e.g. for making V-shaped pieces with a right angle, e.g. for making L-shaped pieces
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • 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
    • B29L2031/7162—Boxes, cartons, cases
    • 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
    • B29L2031/7414—Smokers'' requisites, e.g. pipe cleaners

Definitions

  • a first aspect of the invention relates to a method for connecting at least two substrates, each comprising a base material made of cellulose, wherein at least one of the substrates comprises a layer system with at least one cover layer applied at least in regions to the base material.
  • the substrates are arranged next to one another in such a way that the longitudinal axes of the substrates are arranged at an angle of between 40° and 140° to one another, after which at least the at least one cover layer of one of the substrates is bonded to the other substrate.
  • the substrates are arranged in the form of an oblique, web or corner joint with respect to one another, after which the substrates are bonded to one another with the aid of at least one cover layer.
  • the layer system has only the cover layer on one side of the substrate, preferably on the inside facing the packaged goods.
  • the layer system has one or more further layers on one side, through which additional functions can be implemented.
  • the angle is preferably between 80° and 100°, in particular approximately 90°.
  • This connection can be opened or broken up again, for example, by pulling on one of the substrates, thereby destroying the material connection. The seal thus creates a tight seal until it is mechanically opened.
  • cover layer of one substrate is bonded to the base layer and/or to the cover layer and/or to the entire layer system of the other substrate.
  • cover layer of a substrate is bonded to the cover layer or the layer system of the other substrate, to the base material of the other substrate, or to both. In the latter case, a mechanically particularly stable connection results.
  • At least one of the substrates is in the form of a blank and/or packaging, in particular for tobacco products.
  • one of the substrates forms a lid part of the package, while the other substrate forms at least one wall part of the package.
  • the layer systems 14 consist exclusively of a cover layer 16. In principle, however, the layer systems 14 can have one or more further layers (not shown) independently of one another. It can also be provided that one of the substrates 10a, 10b has no layer system 14 at least in the connection area. It can be seen that the substrates 10a, 10b are arranged next to one another in such a way that longitudinal axes A of the substrates 10a, 10b are arranged at an angle of approximately 90° to one another. In the case of flexible substrates 10a, 10b, the longitudinal extension axes A can be designed as tangents to the respective substrate 10a, 10b in the connection area and used to measure angles.
  • FIG. 2 shows a schematic sectional view of the substrates 10a, 10b, the substrates 10a, 10b being arranged next to one another such that the base material 12 and the cover layer 16 of the second substrate 10a lie completely on the cover layer 16 of the first substrate 10a.
  • the substrates 10a, 10b are then connected to one another with heating in accordance with symbol 18 and/or with the application of pressure.
  • At least the cover layer 16 of the first substrate 10a is softened by the heating and, after cooling, creates a material connection with the base material 12 and/or the cover layer 16 of the second substrate 10b.
  • the two substrates 10a, 10b are cohesively connected to one another in a type of T-joint or corner joint, which creates a barrier that makes additional outer packaging superfluous.
  • FIG. 3 shows a schematic sectional view of the substrates 10a, 10b, the integral connection of which is broken according to arrow III by pulling on the substrate 10b functioning as a cover part.
  • the materially bonded connection is torn open on opening at the base material 12 of the substrate 10b or detached from the substrate 10b.

Abstract

The invention relates to a method for connecting at least two substrates (10a, 10b), which each comprise a base material (12) of cellulose, wherein at least one of the substrates (10a, 10b) comprises a layer system (14) applied at least in some regions to the base material (12) and having at least one outer layer (16). The substrates (10a, 10b) are arranged one against the other in such a way that axes of longitudinal extent (A) of the substrates (10a, 10b) are arranged in relation to one another at an angle of between 40° and 140°, after which at least the at least one outer layer (16) of one of the substrates (10a, 10b) is connected in an integrally bonded manner to the other substrate (10a, 10b). The invention also relates to a package comprising substrates (10a, 10b) connected in such a way.

Description

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Verfahren zum Verbinden von mindestens zwei Substraten und Verpackung, welche zumindest teilweise aus zwei miteinander verbundenen Substraten besteht Method for connecting at least two substrates and packaging which consists at least in part of two substrates connected to one another
BESCHREIBUNG: DESCRIPTION:
Die vorliegende Erfindung betrifft ein Verfahren zum Verbinden von mindestens zwei Substraten und eine Verpackung, welche zumindest teilweise aus zwei miteinander verbundenen Substraten besteht. The present invention relates to a method for connecting at least two substrates and a package which consists at least partially of two substrates connected to one another.
Aus dem Stand der Technik sind Verpackungen wie beispielsweise Zigaretten- oder Kaugummischachteln bekannt, in denen Gegenstände aufbewahrt werden, die flüchtige Verbindungen wie Aromastoffe und Wasser aufweisen. Um zu verhindern, dass die flüchtigen Verbindungen mit der Zeit entweichen oder durch Luftsauerstoff abgebaut werden, werden derartige Verpackungen üblicherweise in einer zusätzlichen Kunststofffolie verpackt, wodurch eine Barriere gegen Luft, insbesondere gegen Sauerstoff und Wasser bzw. Wasserdampf geschaffen ist. Vor dem Öffnen der Verpackung muss daher zunächst die Kunststofffolie geöffnet und entfernt werden. Packaging such as cigarette or chewing gum boxes are known from the prior art, in which objects are stored that have volatile compounds such as flavorings and water. In order to prevent the volatile compounds from escaping over time or from being broken down by atmospheric oxygen, such packaging is usually packed in an additional plastic film, which creates a barrier against air, in particular against oxygen and water or water vapor. Therefore, before opening the packaging, the plastic film must first be opened and removed.
Nachteilig an diesen bekannten Verpackungen ist der Umstand anzusehen, dass die zusätzliche Umhüllung mit einer Kunststofffolie vergleichsweise aufwändig ist und zudem das Abfallaufkommen erhöht. A disadvantage of this known packaging is the fact that the additional wrapping with a plastic film is comparatively complex and also increases the amount of waste.
Es ist daher Aufgabe der vorliegenden Erfindung, ein Verfahren und eine Verpackung bereitzustellen, bei denen auf eine zusätzliche Außenumhüllung mit einer Kunststofffolie verzichtet werden kann, ohne dass die Lagerfähigkeit der zu verpackenden Gegenstände eingeschränkt wird. Die Aufgaben werden erfindungsgemäß durch ein Verfahren mit den Merkmalen des Anspruchs 1 und durch eine Verpackung gemäß Anspruch 10 gelöst. Vorteilhafte Ausgestaltungen mit zweckmäßigen Weiterbildungen der Erfindung sind in den jeweiligen Unteransprüchen angegeben, wobei vorteilhafte Ausgestaltungen jedes Erfindungsaspekts als vorteilhafte Ausgestaltungen des jeweils anderen Erfindungsaspekts anzusehen sind. It is therefore the object of the present invention to provide a method and a packaging in which an additional outer covering with a plastic film can be dispensed with, without the storability of the objects to be packaged being restricted. The objects are achieved according to the invention by a method having the features of claim 1 and by a packaging according to claim 10. Advantageous configurations with expedient developments of the invention are specified in the respective subclaims, with advantageous configurations of each aspect of the invention being to be regarded as advantageous configurations of the respective other aspect of the invention.
Ein erster Aspekt der Erfindung betrifft ein Verfahren zum Verbinden von mindestens zwei Substraten, die jeweils ein Basismaterial aus Zellstoff umfassen, wobei wenigstens eines der Substrate ein zumindest bereichsweise auf dem Basismaterial aufgebrachtes Schichtsystem mit wenigstens einer Deckschicht umfasst. Erfindungsgemäß werden die Substrate derart aneinander angeordnet, dass Längserstreckungsachsen der Substrate in einem Winkel zwischen 40° und 140° zueinander angeordnet sind, wonach zumindest die wenigstens eine Deckschicht eines der Substrate stoffschlüssig mit dem anderen Substrat verbunden wird. Mit anderen Worten ist es erfindungsgemäß vorgesehen, dass die Substrate in Form eines Schräg-, Steg- oder Eckstoßes zueinander angeordnet werden, wonach die Substrate mit Hilfe von wenigstens einer Deckschicht stoffschlüssig miteinander verbunden werden. Hierdurch kann eine stoffschlüssige Verbindung und vorzugsweise ein geschlossener Raum mit einer Barrierewirkung gegenüber einem Durchtritt von flüchtigen Verbindungen wie etwa Aromastoffen oder Wasser geschaffen werden, wodurch auf eine zusätzliche Außenhülle aus einer Kunststofffolie vollständig verzichtet werden kann. Aus dem Stand der Technik ist es zwar bekannt, Substrate aus einem Basismaterial wie beispielsweise Papier oder Karton miteinander zu versiegeln. Hierzu wird beispielsweise eine Deckschicht aus einem Siegellack auf das Basismaterial der Substrate aufgetragen, wonach diese aufeinandergelegt und versiegelt werden. Allerdings müssen die Substrate dabei zumindest im Verbindungsbereich parallel zueinander angeordnet werden, so dass auf diese Weise nur überlappende Verbindungen möglich sind. Demgegenüber können im Rahmen der vorliegenden Erfindung gewinkelte stoffschlüssige Verbindungen zwischen zwei oder mehr Substraten hergestellt werden. Hierdurch kann beispielsweise ein Deckelelement unmittelbar mit senkrecht zu diesem angeordneten Seitenwänden einer Verpackung verbunden werden, um eine Verpackung mit einem abgedichteten Innenraum zu schaffen. Unter einem Basismaterial aus Zellstoff (Cellulose) wird dabei im Rahmen der vorliegenden Erfindung ein Material verstanden, welches zumindest überwiegend, das heißt zu mindestens 51 %, insbesondere zu mindestens 75 % und bevorzugt zu mindestens 90 % aus Cellulose besteht, wobei im Rahmen der vorliegenden Erfindung prozentuale Angaben grundsätzlich als Gewichtsprozente zu verstehen sind, sofern nichts Gegenteiliges angegeben ist. Beispielsweise kann das Basismaterial gestrichenes oder ungestrichenes Papier, gestrichener oder ungestrichener Karton oder gestrichene oder ungestrichene Pappe sein. Das Schichtsystem weist in einfachster Ausgestaltung lediglich die Deckschicht auf einer Seite des Substrats, vorzugsweise auf der dem Verpackungsgut zuzuwendende Innenseite auf. Alternativ kann vorgesehen sein, dass das Schichtsystem eine oder mehrere weitere Schichten auf einer Seite aufweist, durch welche zusätzliche Funktionen realisiert werden können. Auf der gegenüberliegenden Seite des Substrats, beispielsweise der dem Verpackungsgut abzuwendenden Außenseite, kann dieses grundsätzlich unbeschichtet sein oder ein weiteres Schichtsystem mit einer oder mehreren Schichten, insbesondere Aufdrucken aufweisen, wobei die gegenüberliegenden Schichtsysteme grundsätzlich gleich oder unterschiedlich ausgebildet sein können. Unter einem Winkel zwischen 40° und 140° werden insbesondere Winkel von 40°, 41 °, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, 50°, 51 °, 52°, 53°, 54°, 55°, 56°, 57°, 58°, 59°, 60°, 61 °, 62°, 63°, 64°, 65°, 66°, 67°, 68°, 69°, 70°, 71 °, 72°, 73°, 74°, 75°, 76°, 77°, 78°, 79°, 80°, 81 °, 82°, 83°, 84°, 85°, 86°, 87°, 88°, 89°, 90°, 91 °, 92°, 93°, 94°, 95°, 96°, 97°, 98°, 99°, 100°, 101 °, 102°, 103°, 104°, 105°, 106°, 107°, 108°, 109°, 110°, 111 °, 112°, 113°, 114°, 115°, 116°, 117°, 118°, 119°, 120°, 121 °, 122°, 123°, 124°, 125°, 126°, 127°, 128°, 129°, 130°, 131 °, 132°, 133°, 134°, 135°, 136°, 137°, 138°, 139° oder 140° verstanden. Vorzugsweise beträgt der Winkel zwischen 80° und 100°, insbesondere etwa 90°. Dieser Verbindung kann beispielsweise durch Ziehen an einem der Substrate unter Zerstörung der stoffschlüssigen Verbindung wieder geöffnet bzw. aufgebrochen werden. Durch die Versiegelung wird also ein dichter Verschluss bis zum mechanischen Öffnen realisiert. A first aspect of the invention relates to a method for connecting at least two substrates, each comprising a base material made of cellulose, wherein at least one of the substrates comprises a layer system with at least one cover layer applied at least in regions to the base material. According to the invention, the substrates are arranged next to one another in such a way that the longitudinal axes of the substrates are arranged at an angle of between 40° and 140° to one another, after which at least the at least one cover layer of one of the substrates is bonded to the other substrate. In other words, it is provided according to the invention that the substrates are arranged in the form of an oblique, web or corner joint with respect to one another, after which the substrates are bonded to one another with the aid of at least one cover layer. In this way, a cohesive connection and preferably a closed space with a barrier effect against the passage of volatile compounds such as aromatic substances or water can be created, which means that an additional outer shell made of a plastic film can be completely dispensed with. It is known from the prior art to seal substrates made of a base material such as paper or cardboard with one another. For this purpose, for example, a cover layer of a sealing wax is applied to the base material of the substrates, after which they are placed one on top of the other and sealed. However, the substrates must be arranged parallel to one another, at least in the connection area, so that only overlapping connections are possible in this way. In contrast, within the scope of the present invention, angled material connections can be produced between two or more substrates. In this way, for example, a cover element can be connected directly to side walls of a packaging arranged perpendicularly thereto in order to create a packaging with a sealed interior. Under a base material made of pulp (cellulose) is thereby in the context of In the present invention, a material is understood which consists at least predominantly, i.e. at least 51%, in particular at least 75% and preferably at least 90%, of cellulose, wherein in the context of the present invention percentages are to be understood as percentages by weight, unless otherwise stated is specified. For example, the base material can be coated or uncoated paper, coated or uncoated paperboard, or coated or uncoated paperboard. In the simplest configuration, the layer system has only the cover layer on one side of the substrate, preferably on the inside facing the packaged goods. Alternatively, it can be provided that the layer system has one or more further layers on one side, through which additional functions can be implemented. On the opposite side of the substrate, for example the outside facing away from the packaged goods, this can be uncoated or have a further layer system with one or more layers, in particular imprints, with the opposite layer systems being basically identical or different. At an angle between 40° and 140°, in particular angles of 40°, 41°, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, 50°, 51°, 52 °, 53°, 54°, 55°, 56°, 57°, 58°, 59°, 60°, 61°, 62°, 63°, 64°, 65°, 66°, 67°, 68°, 69°, 70°, 71°, 72°, 73°, 74°, 75°, 76°, 77°, 78°, 79°, 80°, 81°, 82°, 83°, 84°, 85° , 86°, 87°, 88°, 89°, 90°, 91°, 92°, 93°, 94°, 95°, 96°, 97°, 98°, 99°, 100°, 101°, 102 °, 103°, 104°, 105°, 106°, 107°, 108°, 109°, 110°, 111°, 112°, 113°, 114°, 115°, 116°, 117°, 118°, 119°, 120°, 121°, 122°, 123°, 124°, 125°, 126°, 127°, 128°, 129°, 130°, 131°, 132°, 133°, 134°, 135° , 136°, 137°, 138°, 139° or 140°. The angle is preferably between 80° and 100°, in particular approximately 90°. This connection can be opened or broken up again, for example, by pulling on one of the substrates, thereby destroying the material connection. The seal thus creates a tight seal until it is mechanically opened.
In einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass vor dem Verbinden der Substrate die Deckschicht und/oder wenigstens eine weitere Schicht des Schichtsystems wenigstens eines der Substrate durch ein Beschichtungsverfahren auf das Basismaterial des Substrats aufgebracht, insbesondere auflaminiert und/oder aufgedruckt wird. Hierdurch können die chemischen, physikalischen und mechanischen Eigenschaften des Schichtsystems optimal an den jeweiligen Einsatzzweck angepasst werden. In an advantageous embodiment of the invention, it is provided that before the substrates are connected, the cover layer and/or at least one further layer of the layer system of at least one of the substrates is applied to the base material of the substrate by a coating process, in particular laminated and/or printed on. This allows the chemical, physical and mechanical Properties of the layer system can be optimally adapted to the respective application.
In einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass die Deckschicht und/oder die wenigstens eine weitere Schicht des Schichtsystems wenigstens eines der Substrate aus einem, vorzugsweise biologisch abbaubaren, Kunststofffilm und/oder einem Siegellack besteht und/oder dass zur Herstellung der Deckschicht und/oder der wenigstens einen weiteren Schicht des Schichtsystems wenigstens eines der Substrate eine Flüssigkeit auf das Basismaterial aufgebracht und physikalisch und/oder chemisch ausgehärtet bzw. getrocknet wird. Beispielsweise kann die Deckschicht und/oder eine weitere Schicht des Schichtsystems PE, PA, PET, OPP oder einen anderen Kunststoff umfassen bzw. aus einem solchen Kunststoff bestehen. Vorzugsweise ist das verwendete Material heißsiegelfähig. In an advantageous embodiment of the invention it is provided that the cover layer and/or the at least one further layer of the layer system consists of at least one of the substrates of a preferably biodegradable plastic film and/or a sealing wax and/or that for the production of the cover layer and/or or the at least one further layer of the layer system of at least one of the substrates, a liquid is applied to the base material and physically and/or chemically cured or dried. For example, the cover layer and/or another layer of the layer system can comprise PE, PA, PET, OPP or another plastic or consist of such a plastic. Preferably the material used is heat sealable.
In einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass das Basismaterial wenigstens eines Substrats ausgewählt wird aus einer Gruppe, die Papier, Karton und Pappe umfasst. Wenn das Basismaterial eine flächenbezogene Masse zwischen etwa 5 g/m2 und etwa 150 g/m2 aufweist, wird es im Rahmen der Offenbarung als Papier bezeichnet. Basismaterial mit einer flächenbezogenen Masse zwischen etwa 150 g/m2 und etwa 800 g/m2 wird im Rahmen der Offenbarung als Karton bezeichnet, während Basismaterial mit einer flächenbezogenen Masse zwischen etwa 800 g/m2 und etwa 2000 g/m2 als Pappe bezeichnet wird. In an advantageous embodiment of the invention it is provided that the base material of at least one substrate is selected from a group comprising paper, cardboard and cardboard. When the base material has a basis weight between about 5 g/m 2 and about 150 g/m 2 , it is referred to as paper for the purposes of this disclosure. Base material with a basis weight between about 150 g/m 2 and about 800 g/m 2 is referred to as paperboard for the purposes of the disclosure, while base material with a basis weight between about 800 g/m 2 and about 2000 g/m 2 is referred to as paperboard referred to as.
Weitere Vorteile ergeben sich dadurch, dass die Deckschicht des einen Substrats stoffschlüssig mit der Basisschicht und/oder mit der Deckschicht und/oder mit dem gesamten Schichtsystem des anderen Substrats verbunden wird. Mit anderen Worten ist es vorgesehen, dass die Deckschicht eines Substrats stoffschlüssig mit der Deckschicht bzw. dem Schichtsystem des anderen Substrats, mit dem Basismaterial des anderen Substrats oder mit beiden verbunden wird. Im letzten Fall ergibt sich eine mechanisch besonders stabile Verbindung. Further advantages result from the fact that the cover layer of one substrate is bonded to the base layer and/or to the cover layer and/or to the entire layer system of the other substrate. In other words, it is provided that the cover layer of a substrate is bonded to the cover layer or the layer system of the other substrate, to the base material of the other substrate, or to both. In the latter case, a mechanically particularly stable connection results.
Weitere Vorteile ergeben sich dadurch, dass die Deckschicht wenigstens eines Substrats zum Verbinden mit dem anderen Substrat zunächst durch Erwärmen thermoplastisch aufgeweicht wird und/oder dass die Substrate unter Druckbeaufschlagung verbunden werden und/oder dass die Deckschicht wenigstens eines Substrats durch UV- und/oder thermisch induzierte Polymerisation mit dem anderen Substrat chemisch reagiert. Hierdurch können unterschiedliche Deckschichttypen zum Verbinden der Substrate verwendet werden. Further advantages result from the fact that the cover layer of at least one substrate is initially bonded to the other substrate by heating is thermoplastically softened and/or that the substrates are bonded under pressure and/or that the cover layer of at least one substrate reacts chemically with the other substrate by UV and/or thermally induced polymerization. As a result, different cover layer types can be used to connect the substrates.
Weitere Vorteile ergeben sich dadurch, dass die Substrate nach dem Verbinden eine Sauerstoff- und/oder Wasser- und/oder Wasserdampf barriere und/oder eine Barriere gegen lipophile Verbindungen bilden. Hierdurch können die Barriereeigenschaften in Abhängigkeit des zu verpackenden Verpackungsguts optimal angepasst werden. Further advantages result from the fact that the substrates form an oxygen and/or water and/or water vapor barrier and/or a barrier against lipophilic compounds after bonding. In this way, the barrier properties can be optimally adjusted depending on the packaged goods to be packaged.
Vorzugsweise ist es vorgesehen, dass ein Schichtsystem wenigstens eines der Substrate wenigstens eine weitere Schicht mit einer Barrierewirkung gegen Sauerstoff und/oder Wasser und/oder Wasserdampf und/oder lipophile Verbindungen aufweist. Hierdurch können zusätzliche Barriereeigenschaften realisiert werden, die durch die Deckschicht alleine nicht oder nicht in ausreichendem Ausmaß realisiert werden. Beispielsweise kann die weitere Schicht Kaolin, Silikate, PVOH, EVOH und dergleichen umfassen. It is preferably provided that a layer system of at least one of the substrates has at least one further layer with a barrier effect against oxygen and/or water and/or water vapor and/or lipophilic compounds. In this way, additional barrier properties can be realized that are not realized or not to a sufficient extent by the cover layer alone. For example, the further layer can include kaolin, silicates, PVOH, EVOH and the like.
In einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass wenigstens eines der Substrate als Zuschnitt und/oder als Verpackung, insbesondere für Tabakwaren, ausgebildet ist. Vorzugsweise bildet eines der Substrate in der fertigen Verpackung ein Deckelteil der Verpackung, während das andere Substrat wenigstens ein Wandteil der Verpackung bildet. In an advantageous embodiment of the invention, it is provided that at least one of the substrates is in the form of a blank and/or packaging, in particular for tobacco products. Preferably, in the finished package, one of the substrates forms a lid part of the package, while the other substrate forms at least one wall part of the package.
Ein zweiter Aspekt der Erfindung betrifft eine Verpackung, welche zumindest teilweise aus Substraten besteht, die mittels eines Verfahrens gemäß dem ersten Erfindungsaspekt miteinander verbunden sind. Hierdurch kann vorteilhaft auf eine Umverpackung aus einer Kunststofffolie verzichtet werden. Vorzugsweise bilden die Schichtsysteme der Substrate einen allseitig geschlossenen Innenraum der Verpackung. Die Verpackung kann als Faltschachtel bzw. als Schachtel ausgebildet sein, die vorwiegend aus einem Cellulosematerial wie Karton besteht. Alternativ kann die Verpackung auch durch Umschlagen um eine Form hergestellt werden, wobei ein Bodenteil gegebenenfalls eingepresst bzw. durch Bördeln befestigt wird und ein Deckelteil gegebenenfalls ober auf der Verpackung fixiert wird. Die Verpackung kann grundsätzlich zur Verpackung von beliebigem Verpackungsgut ausgebildet sein, insbesondere von Verpackungsgut mit flüchtigen Verbindungen. Die Verpackung kann beispielsweise als Zigarettenschachtel oder Kaugummiverpackung ausgebildet sein. Weitere Merkmale und deren Vorteile sind den Beschreibungen des ersten Erfindungsaspekts zu entnehmen. A second aspect of the invention relates to packaging which consists at least partially of substrates which are connected to one another by means of a method according to the first aspect of the invention. As a result, an outer packaging made of a plastic film can advantageously be dispensed with. The layer systems of the substrates preferably form an interior of the packaging that is closed on all sides. The packaging can be designed as a folding box or as a box, which consists mainly of a cellulosic material such as cardboard. Alternatively, the packaging can also be made by wrapping around a mold, with a The bottom part is optionally pressed in or fastened by flanging and a lid part is optionally fixed on top of the packaging. In principle, the packaging can be designed for the packaging of any packaged goods, in particular packaged goods with volatile compounds. The packaging can be designed, for example, as a cigarette box or chewing gum packaging. Additional features and their advantages can be found in the descriptions of the first aspect of the invention.
Weitere Merkmale der Erfindung ergeben sich aus den Ansprüchen, den Figuren und der Figurenbeschreibung. Die vorstehend in der Beschreibung genannten Merkmale und Merkmalskombinationen, sowie die nachfolgend in der Figurenbeschreibung genannten und/oder in den Figuren alleine gezeigten Merkmale und Merkmalskombinationen sind nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen verwendbar, ohne den Rahmen der Erfindung zu verlassen. Es sind somit auch Ausführungen von der Erfindung als umfasst und offenbart anzusehen, die in den Figuren nicht explizit gezeigt und erläutert sind, jedoch durch separierte Merkmalskombinationen aus den erläuterten Ausführungen hervorgehen und erzeugbar sind. Es sind auch Ausführungen und Merkmalskombinationen als offenbart anzusehen, die somit nicht alle Merkmale eines ursprünglich formulierten unabhängigen Anspruchs aufweisen. Es sind darüber hinaus Ausführungen und Merkmalskombinationen, insbesondere durch die oben dargelegten Ausführungen, als offenbart anzusehen, die über die in den Rückbezügen der Ansprüche dargelegten Merkmalskombinationen hinausgehen oder von diesen abweichen. Dabei zeigen: Further features of the invention result from the claims, the figures and the description of the figures. The features and feature combinations mentioned above in the description, as well as the features and feature combinations mentioned below in the description of the figures and/or shown alone in the figures, can be used not only in the combination specified in each case, but also in other combinations, without going beyond the scope of the invention leaving. The invention is therefore also to be considered to include and disclose embodiments that are not explicitly shown and explained in the figures, but that result from the explained embodiments and can be generated by separate combinations of features. Versions and combinations of features are also to be regarded as disclosed which therefore do not have all the features of an originally formulated independent claim. Furthermore, embodiments and combinations of features, in particular through the embodiments presented above, are to be regarded as disclosed which go beyond or deviate from the combinations of features presented in the back references of the claims. show:
Fig. 1 eine schematische Schnittansicht von zwei Substraten, die in einem Winkel von etwa 90° zueinander angeordnet sind; 1 shows a schematic sectional view of two substrates which are arranged at an angle of approximately 90° to one another;
Fig. 2 eine schematische Schnittansicht der Substrate, wobei die Substrate derart aneinander angeordnet werden, dass Längserstreckungsachsen der Substrate in einem Winkel von etwa 90° zueinander angeordnet sind, wonach wenigstens eine Deckschicht eines der Substrate unter Erwärmen stoffschlüssig mit dem anderen Substrat verbunden wird; und Fig. 3 eine schematische Schnittansicht der Substrate, deren stoffschlüssige Verbindung aufgebrochen wird. 2 shows a schematic sectional view of the substrates, the substrates being arranged next to one another in such a way that the axes of longitudinal extension of the substrates are arranged at an angle of approximately 90° to one another, after which at least one cover layer of one of the substrates is bonded to the other substrate while being heated; and FIG. 3 shows a schematic sectional view of the substrates whose integral connection is broken.
Fig. 1 zeigt zwei Substrate 10a, 10b, die jeweils ein Basismaterial 12 aus Karton aufweisen, auf dessen Innenseite zumindest bereichsweise ein Schichtsystem 14 angeordnet ist. Die Schichtsysteme 14 bestehen vorliegend ausschließlich aus einer Deckschicht 16. Grundsätzlich können die Schichtsysteme 14 aber unabhängig voneinander eine oder mehrere weitere Schichten (nicht gezeigt) aufweisen. Ebenso kann vorgesehen sein, dass eines der Substrate 10a, 10b zumindest im Verbindungsbereich kein Schichtsystem 14 aufweist. Man erkennt, dass die Substrate 10a, 10b derart aneinander angeordnet werden, dass Längserstreckungsachsen A der Substrate 10a, 10b in einem Winkel von etwa 90° zueinander angeordnet sind. Im Fall von biegeschlaffen Substraten 10a, 10b können die Längserstreckungsachsen A als Tangenten an das jeweilige Substrat 10a, 10b im Verbindungsbereich konstruiert und zur Winkelmessung verwendet werden. 1 shows two substrates 10a, 10b, each of which has a base material 12 made of cardboard, on the inside of which a layer system 14 is arranged at least in regions. In the present case, the layer systems 14 consist exclusively of a cover layer 16. In principle, however, the layer systems 14 can have one or more further layers (not shown) independently of one another. It can also be provided that one of the substrates 10a, 10b has no layer system 14 at least in the connection area. It can be seen that the substrates 10a, 10b are arranged next to one another in such a way that longitudinal axes A of the substrates 10a, 10b are arranged at an angle of approximately 90° to one another. In the case of flexible substrates 10a, 10b, the longitudinal extension axes A can be designed as tangents to the respective substrate 10a, 10b in the connection area and used to measure angles.
Fig. 2 zeigt eine schematische Schnittansicht der Substrate 10a, 10b, wobei die Substrate 10a, 10b derart aneinander angeordnet werden, dass das Basismaterial 12 und die Deckschicht 16 des zweiten Substrats 10a vollständig auf der Deckschicht 16 des ersten Substrats 10a aufliegen. Anschließend werden die Substrate 10a, 10b unter Erwärmen gemäß Symbol 18 und/oder unter Druckbeaufschlagung miteinander verbunden. Zumindest die Deckschicht 16 des ersten Substrats 10a wird durch das Erwärmen erweicht und stellt nach dem Erkalten eine stoffschlüssige Verbindung mit dem Basismaterial 12 und/oder der Deckschicht 16 des zweiten Substrats 10b her. Damit sind die beiden Substrate 10a, 10b in einer Art T- bzw. Eckstoß stoffschlüssig miteinander verbunden, wodurch eine Barriere entsteht, die eine zusätzliche Umverpackung überflüssig macht. 2 shows a schematic sectional view of the substrates 10a, 10b, the substrates 10a, 10b being arranged next to one another such that the base material 12 and the cover layer 16 of the second substrate 10a lie completely on the cover layer 16 of the first substrate 10a. The substrates 10a, 10b are then connected to one another with heating in accordance with symbol 18 and/or with the application of pressure. At least the cover layer 16 of the first substrate 10a is softened by the heating and, after cooling, creates a material connection with the base material 12 and/or the cover layer 16 of the second substrate 10b. In this way, the two substrates 10a, 10b are cohesively connected to one another in a type of T-joint or corner joint, which creates a barrier that makes additional outer packaging superfluous.
Fig. 3 zeigt eine schematische Schnittansicht der Substrate 10a, 10b, deren stoffschlüssige Verbindung gemäß Pfeil III durch Ziehen am als Deckelteil fungierenden Substrat 10b aufgebrochen wird. Je nachdem wo die Adhäsion stärker ist, wird die stoffschlüssige Verbindung beim Öffnen am Basismaterial 12 des Substrats 10b aufgerissen oder vom Substrat 10b gelöst. Selbstverständlich besteht auch die Möglichkeit, dass die stoffschlüssige Verbindung in zwei oder mehr Teile bricht, wenn eines der Substrate 10a, 10b vom anderen weggezogen wird. 3 shows a schematic sectional view of the substrates 10a, 10b, the integral connection of which is broken according to arrow III by pulling on the substrate 10b functioning as a cover part. Depending on where the adhesion is stronger, the materially bonded connection is torn open on opening at the base material 12 of the substrate 10b or detached from the substrate 10b. Of course there is also that Possibility of the bond breaking into two or more pieces when one of the substrates 10a, 10b is pulled away from the other.
BEZUGSZEICHENLISTE: REFERENCE LIST:
10a Substrat 10b Substrat 10a substrate 10b substrate
12 Basismaterial 12 base material
14 Schichtsystem 14 layer system
16 Deckschicht 16 top layer
18 Symbol Erwärmung A Längserstreckungsachse 18 Heating symbol A Longitudinal axis
III Pfeil III arrow

Claims

ANSPRÜCHE: EXPECTATIONS:
1. Verfahren zum Verbinden von mindestens zwei Substraten (10a, 10b), die jeweils ein Basismaterial (12) aus Zellstoff umfassen, wobei wenigstens eines der Substrate (10a, 10b) ein zumindest bereichsweise auf dem Basismaterial (12) aufgebrachtes Schichtsystem (14) mit wenigstens einer Deckschicht (16) umfasst, dadurch gekennzeichnet, dass die Substrate (10a, 10b) derart aneinander angeordnet werden, dass Längserstreckungsachsen (A) der Substrate (10a, 10b) in einem Winkel zwischen 40° und 140° zueinander angeordnet sind, wonach zumindest die wenigstens eine Deckschicht (16) eines der Substrate (10a, 10b) stoffschlüssig mit dem anderen Substrat (10a, 10b) verbunden wird. 1. Method for connecting at least two substrates (10a, 10b), each comprising a base material (12) made of cellulose, wherein at least one of the substrates (10a, 10b) has a layer system (14) applied at least in regions to the base material (12). comprising at least one cover layer (16), characterized in that the substrates (10a, 10b) are arranged next to one another in such a way that longitudinal axes (A) of the substrates (10a, 10b) are arranged at an angle of between 40° and 140° to one another, after which at least the at least one cover layer (16) of one of the substrates (10a, 10b) is bonded to the other substrate (10a, 10b).
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass vor dem Verbinden der Substrate (10a, 10b) die Deckschicht (16) und/oder wenigstens eine weitere Schicht des Schichtsystems (14) wenigstens eines der Substrate (10a, 10b) durch ein Beschichtungsverfahren auf das Basismaterial (12) des Substrats (10a, 10b) aufgebracht, insbesondere auflaminiert und/oder aufgedruckt wird. 2. The method according to claim 1, characterized in that before connecting the substrates (10a, 10b), the cover layer (16) and / or at least one further layer of the layer system (14) at least one of the substrates (10a, 10b) by a coating process applied to the base material (12) of the substrate (10a, 10b), in particular laminated and/or printed on.
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Deckschicht (16) und/oder die wenigstens eine weitere Schicht des Schichtsystems (14) wenigstens eines der Substrate (10a, 10b) aus einem, vorzugsweise biologisch abbaubaren, Kunststofffilm und/oder einem Siegellack besteht und/oder dass zur Herstellung der Deckschicht (16) und/oder der wenigstens einen weiteren Schicht des Schichtsystems (14) wenigstens eines der Substrate eine Flüssigkeit auf das Basismaterial (12) aufgebracht und physikalisch und/oder chemisch ausgehärtet wird. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Basismaterial (12) wenigstens eines Substrats (10a, 10b) ausgewählt wird aus einer Gruppe, die Papier, Karton und Pappe umfasst. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Deckschicht (16) des einen Substrats (10a, 10b) stoffschlüssig mit der Basisschicht (12) und/oder mit der Deckschicht (16) und/oder mit dem Schichtsystem (14) des anderen Substrats (10a, 10b) verbunden wird. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Deckschicht (16) wenigstens eines Substrats (10a, 10b) zum Verbinden mit dem anderen Substrat (10a, 10b) zunächst durch Erwärmen thermoplastisch aufgeweicht wird und/oder dass die Substrate (10a, 10b) unter Druckbeaufschlagung verbunden werden und/oder dass die Deckschicht (16) wenigstens eines Substrats (10a, 10b) durch UV- und/oder thermisch induzierte Polymerisation mit dem anderen Substrat (10a, 10b) chemisch reagiert. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Substrate (10a, 10b) nach dem Verbinden eine Sauerstoff- und/oder Wasser- und/oder Wasserdampfbarriere und/oder eine Barriere gegen lipophile Verbindungen bilden. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass ein Schichtsystem (14) wenigstens eines der Substrate (10a, 10b) wenigstens eine weitere Schicht mit einer Barrierewirkung gegen Sauerstoff und/oder Wasser und/oder Wasserdampf und/oder lipophile Verbindungen aufweist. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass wenigstens eines der Substrate (10a, 10b) als Zuschnitt und/oder als Verpackung, insbesondere für Tabakwaren, ausgebildet ist. Verpackung, welche zumindest teilweise aus Substraten (10a, 10b) besteht, die mittels eines Verfahrens nach einem der Ansprüche 1 bis 9 miteinander verbunden sind. 3. The method according to claim 2, characterized in that the cover layer (16) and / or the at least one further layer of the layer system (14) at least one of the substrates (10a, 10b) from a, preferably biodegradable, plastic film and / or a sealing wax and/or that for the production of the top layer (16) and/or the at least one further layer of the layer system (14) at least one of the substrates is applied with a liquid to the base material (12) and is cured physically and/or chemically. Method according to one of Claims 1 to 3, characterized in that the base material (12) of at least one substrate (10a, 10b) is selected from a group comprising paper, cardboard and cardboard. Method according to one of Claims 1 to 4, characterized in that the cover layer (16) of one substrate (10a, 10b) is integrally bonded to the base layer (12) and/or to the cover layer (16) and/or to the layer system (14 ) of the other substrate (10a, 10b) is connected. Method according to one of Claims 1 to 5, characterized in that the cover layer (16) of at least one substrate (10a, 10b) is first thermoplastically softened by heating for connection to the other substrate (10a, 10b) and/or that the substrates ( 10a, 10b) are connected under pressure and/or that the cover layer (16) of at least one substrate (10a, 10b) reacts chemically with the other substrate (10a, 10b) by UV and/or thermally induced polymerisation. Method according to one of Claims 1 to 6, characterized in that the substrates (10a, 10b) form an oxygen and/or water and/or water vapor barrier and/or a barrier against lipophilic compounds after bonding. Method according to one of Claims 1 to 7, characterized in that a layer system (14) of at least one of the substrates (10a, 10b) has at least one further layer with a barrier effect against oxygen and/or water and/or water vapor and/or lipophilic compounds . Method according to one of Claims 1 to 8, characterized in that at least one of the substrates (10a, 10b) is designed as a blank and/or as packaging, in particular for tobacco products. Packaging which consists at least in part of substrates (10a, 10b) which are connected to one another by means of a method according to any one of claims 1 to 9.
PCT/EP2021/073086 2020-08-26 2021-08-19 Method for connecting at least two substrates and package consisting at least partially of two substrates connected to one another WO2022043193A1 (en)

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US4562936A (en) * 1985-02-12 1986-01-07 The Procter & Gamble Company Easy-open laminated container with optional reclosing means and method of making
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