EP3651955A1 - Bande de chant et procédé de fixation d'une bande de chant - Google Patents

Bande de chant et procédé de fixation d'une bande de chant

Info

Publication number
EP3651955A1
EP3651955A1 EP18731400.0A EP18731400A EP3651955A1 EP 3651955 A1 EP3651955 A1 EP 3651955A1 EP 18731400 A EP18731400 A EP 18731400A EP 3651955 A1 EP3651955 A1 EP 3651955A1
Authority
EP
European Patent Office
Prior art keywords
pressure
adhesive layer
edge strip
sensitive adhesive
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18731400.0A
Other languages
German (de)
English (en)
Other versions
EP3651955B1 (fr
Inventor
Jordanis Petrakis
Martin Ottow
Christoph Kremer
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.)
Surteco GmbH
Original Assignee
Surteco GmbH
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 Surteco GmbH filed Critical Surteco GmbH
Publication of EP3651955A1 publication Critical patent/EP3651955A1/fr
Application granted granted Critical
Publication of EP3651955B1 publication Critical patent/EP3651955B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge

Definitions

  • the invention relates to a method for fastening an edge strip to a narrow surface of a plate-shaped workpiece, preferably a furniture plate, wherein the edge strip has at least one front-side cover layer and wherein the edge strip - rear side disposed on the cover layer - and / or the narrow surface has at least one adhesive layer / have ,
  • Plate-shaped workpiece or furniture plate means in the context of the invention, in particular a wood-based panel, such as a chipboard, fiberboard or the like. In principle, it may also be a plate made of other materials and a composite plate.
  • the furniture panel on one or two sides - that is on its top and / or bottom - provided with a coating, it is therefore in particular a coated furniture panel.
  • Empfohlene the top and / or bottom side used coatings, for example, films or resin-impregnated papers. In principle, however, other coatings can be used.
  • edge strips it is known and customary to attach edge strips to the outside or frontal narrow surfaces of such furniture panels.
  • edge strips or cover strips are also referred to simply as edges or edge bands, alternatively as a lipping.
  • the edge strips serve the waterproof and permanent completion of the furniture panels and can also fulfill decorative purposes.
  • the front-side cover layer of the edge is that layer which faces the viewer in the mounted state of the edge strip and therefore the front and visible
  • Layer of the edge strip represents.
  • the cover layer can also consist of several layers, that is to say comprise a plurality of partial layers.
  • EP 1 163 864 A1 describes a connection between an edge strip and a furniture panel, in which the edge strip is applied directly to the furniture panel without the use of adhesive. For this purpose, the surface of the edge strip is melted. This can be done for example by laser radiation.
  • EP 1 852 242 A1 describes a method in which an edge strip is provided by coextrusion with a hot-melt adhesive layer and then attached to a furniture panel.
  • the hot-melt adhesive layer is colored in the color of the cover strip and therefore no joint is visually recognizable after joining.
  • the hotmelt adhesive layer is melted or activated, for example by means of laser radiation.
  • the invention has for its object to provide a method of the type described above, with the edge strip simple, reliable and while avoiding a high expenditure of energy on the
  • Furniture panel can be applied.
  • a visually perfect result should be achieved, in particular while avoiding contamination of the adhesive joint.
  • the invention is based on the object of specifying an edge strip, in particular for use in this method.
  • the invention teaches in a method for fixing an edge strip of the type described above, that the adhesive layer is formed on the basis of a pressure-sensitive adhesive, that the edge strip is applied to the narrow surface and connected by pressure with the narrow surface and that the pressure-sensitive adhesive at least partially cross-linked or cross-linked.
  • crosslinking means, in particular, the linking of molecules or macromolecules of the pressure-sensitive pressure-sensitive adhesive with one another. Both monomers can be linked or crosslinked to macromolecules, as well as existing macromolecules can be crosslinked or cross-linked.
  • the crosslinking or linking reaction is therefore preferably a polymerization reaction.
  • the molecules or macromolecules which are preferably constituents of the pressure-sensitive pressure-sensitive adhesive have suitable groups for this purpose, which are crosslinkable or polymerizable, if appropriate after an initiation step. It is also possible that molecules or molecular groups which are part of the plate-shaped workpiece, for example part of the material or of a composite substance contained therein, are included in the crosslinking or polymerization reaction.
  • the invention is initially based on the recognition that by the use of a pressure-sensitive adhesive high energy expenditure for attachment of the edge strip to a furniture panel
  • the edge strip is connected by pressure with the narrow surface, so that the inventive method does not require the high energy consumption for the activation of the adhesive layer or for the heating of a hot melt adhesive.
  • damage to the cover layer can be prevented by indirect heating, since it is in the process of the invention as it were a cold bonding of the edge strip with the furniture panel.
  • the invention is based on the finding that the permanent stickiness or residual tackiness of the adhesive layer in the crosslinked area can be almost completely avoided by the at least partial crosslinking of the pressure-sensitive pressure-sensitive adhesive and thus no longer leads to undesirable accumulation of dust and dirt particles in the transitional area between the substrate Workpiece or the furniture panel and the edge strip due to the permanent stickiness or residual tackiness of the adhesive layer comes.
  • the cover layer or front-side cover layer preferably consists of at least one thermoplastic polymer.
  • the cover layer consists of a thermoplastic polymer from the group polystyrenes (for example ABS), polyvinyl chlorides (for example PVC-U), polyolefins (for example polypropylene or polyethylene), polycarbonates (PC ), Polyethylene terephthalate (PET) or polymethylmethacrylate (PMMA) and polyamides (PA). It is in the frame
  • cover layer with additives for example, with fillers for reinforcement or the like is provided.
  • the edge strip and / or the narrow surface has at least one adhesive layer and this adhesive layer is formed on the basis of a pressure-sensitive pressure-sensitive adhesive.
  • the adhesive layer or pressure-sensitive adhesive is particularly preferably formed on the basis of at least one component from the group: acrylates, polyacrylates, epoxides, polyepoxides, polyesters, unsaturated polyester resins, polyurethanes, polysiloxanes, rubbers, vinyl acetates, polyvinyl acetates.
  • the adhesive layer or the pressure-sensitive pressure-sensitive adhesive can also be formed on the basis of other components which are conventionally used as pressure-sensitive pressure-sensitive adhesives and which are known to the person skilled in the art.
  • the adhesive layer is preferably applied by spraying onto the edge strip and / or the narrow surface.
  • the adhesive layer can also be applied to the edge strip and / or the narrow surface by other application methods, for example by methods based on coextrusion and / or by rolling and / or brushing and / or nozzle application.
  • the pressure-sensitive adhesive it is also possible for the pressure-sensitive adhesive to be applied to the edge strip and / or the narrow surface as an adhesive tape in the course of an extrusion or coextrusion or in an edge banding machine.
  • the adhesive layer is provided with at least one additive.
  • This at least one additive may, for example, be a resin for improving the pressure-sensitive adhesive.
  • the adhesive layer may contain additives such as stabilizers, antioxidants, fillers, crosslinkers, color pigments or dyes.
  • a preferred embodiment of the invention is characterized in that the adhesive layer is colorless.
  • the adhesive layer may also contain color pigments and / or dyes and preferably the adhesive layer then has a color which corresponds to or substantially corresponds to the color of the front-side cover layer.
  • the crosslinking of the pressure-sensitive pressure-sensitive adhesive of the adhesive layer is initiated by irradiation with a radiation source.
  • the radiation source is preferably a UV radiation source, and more preferably an LED UV radiation source.
  • the crosslinking is initiated by UV radiation.
  • Irradiation with a radiation source forms reactive molecules, for example radicals or ions, which initiate the crosslinking or linking reaction.
  • the crosslinking or linking reactions can therefore be free-radical, ionic or hybrid mechanisms.
  • the particular crosslinking mechanism depends on the choice of the pressure-sensitive pressure-sensitive adhesive and the radiation source.
  • the adhesive layer contains at least one photoinitiator or molecules with photoreactive groups, which is preferably activated by irradiation with a radiation source and subsequently initiates crosslinking of the pressure-sensitive adhesive of the adhesive layer.
  • the at least one photoinitiator in particular absorbs the radiation introduced by means of the radiation source and decomposes into reactive forms or releases substances which start the crosslinking reactions.
  • the edge strip - arranged on the back of the cover layer - the at least one adhesive layer based on a pressure-sensitive adhesive this edge strip is connected by pressure with the narrow surface of a furniture panel and the pressure-sensitive adhesive is at least partially crosslinked and the Initiation of the crosslinking by irradiation with a UV radiation source takes place.
  • An alternative embodiment of the method according to the invention is characterized in that the crosslinking of the pressure-sensitive pressure-sensitive adhesive of the adhesive layer is chemically initiated by at least one initiating component.
  • the initiating component is a radical-forming component, more preferably a peroxidic component. In principle, however, the initiator component can also be an ion-forming component.
  • the crosslinking of the pressure-sensitive pressure-sensitive adhesive of the adhesive layer is accelerated by at least one accelerator component.
  • the initiating component is converted by the accelerator component into a reactive form and this reactive form of the initiating component initiates the crosslinking or linking reaction.
  • these may be free-radical, ionic or hybrid mechanisms for crosslinking or linking the pressure-sensitive pressure-sensitive adhesive.
  • the initiating component is a peroxidic component. This peroxidic component then forms radicals, in particular in cooperation with a suitable accelerator component, which initiate the crosslinking or linking reaction.
  • connecting layer means, in particular, a layer which is applied to the edge strip or the narrow surface and may contain, for example, the initiating component or the accelerator component and is not an adhesive layer based on a pressure-sensitive pressure-sensitive adhesive. Consequently, the bonding layer is, as it were, a neutral layer, which may contain, for example, the initiating component or the accelerator component.
  • the initiating component is therefore preferably a constituent of the adhesive layer or of such a bonding layer.
  • the accelerator component is part of an adhesive layer or tie layer that does not contain an initiation component.
  • the initiating component and the accelerator component are preferably in different layers and the initiation of the crosslinking or linking reaction particularly preferably begins only when these two layers come into contact with one another.
  • the accelerator component is recommended to be part of a layer that does not contain the initiation component.
  • a particularly preferred embodiment of the method according to the invention is characterized in that both the edge strip and the narrow surface have at least one adhesive layer, wherein the adhesive layer of the edge strip preferably contains the accelerator component and wherein the adhesive layer of the narrow surface preferably contains the initiating component.
  • the adhesive layer of the edge strip contains the initiating component and the adhesive layer of the narrow surface contains the accelerator component.
  • the edge strip or the narrow surface has an adhesive layer and that then the edge strip or the narrow surface which has no adhesive layer is provided with a bonding layer.
  • the adhesive layer then contains the accelerator component or the initiating component.
  • the bonding layer then contains in particular the other of the two components.
  • the crosslinking of the pressure-sensitive adhesive of the adhesive layer is recommended after the connection of the edge strip and the narrow surface.
  • the edge strip and the narrow surface are thus first connected by pressure by means of pressure-sensitive adhesive and as a result, the crosslinking or coupling reaction is started.
  • This can be done directly by the contact of an initiating component and an accelerator component according to an embodiment of the method according to the invention.
  • the initiating component and the accelerator component can be constituents of different layers, for example.
  • the accelerator component or the initiating component is part of a layer that the edge strip and the narrow surface are connected according to the invention and that subsequently the other component is applied to the joint or the gap between the workpiece and edge strip, in particular by spraying or brushing on and so preferably the crosslinking reaction is initiated.
  • the crosslinking or linking reaction can take place after the connection of the edge strip and the narrow surface by irradiation with a radiation source.
  • the crosslinking or linking reaction already before
  • the adhesive layer can for example be irradiated before the connection with a radiation source, so that the crosslinking or linking reaction is initiated and then the connection of the edge strip with the narrow surface is carried out by pressure.
  • the pressure-sensitive adhesive of the adhesive layer is only partially crosslinked.
  • the pressure-sensitive adhesive of the adhesive layer is therefore not completely crosslinked.
  • the pressure-sensitive pressure-sensitive adhesive is crosslinked only in the area of the joint surface between edge strip and narrow surface. This refinement is based on the knowledge that the stickiness of the adhesive layer is then retained below the joint surface, and permanent crosslinking or residual tackiness in this region can be prevented by crosslinking only in the area of the joint surface.
  • the partial crosslinking of the pressure-sensitive pressure-sensitive adhesive of the adhesion layer can be controlled, for example, via the penetration depth of the irradiation or by targeted, area-wise use of the photoinitiators, initiator and / or accelerator components. In principle, however, it is also within the scope of the invention for the pressure-sensitive pressure-sensitive adhesive of the adhesive layer to be completely crosslinked.
  • the adhesive layer (on the edge strip and / or the plate) is provided with a protective cover, for example a protective film, for protecting the adhesive layer or pressure-sensitive adhesive and that preferably this protective film immediately before the connection of the edge strip with the narrow surface is removed from the edge strip and / or the plate.
  • a protective cover for example a protective film, for protecting the adhesive layer or pressure-sensitive adhesive and that preferably this protective film immediately before the connection of the edge strip with the narrow surface is removed from the edge strip and / or the plate.
  • the invention further teaches an edge strip for the narrow-surface coating of plate-shaped workpieces, preferably of furniture panels - in particular for use in the method described above - with at least one front-side cover layer and at least one adhesive layer arranged on the back of the cover layer for fastening the edge strip the workpiece.
  • the edge strip according to the invention is characterized in that the adhesive layer is formed on the basis of a pressure-sensitive pressure-sensitive adhesive, wherein the pressure-sensitive pressure-sensitive adhesive is crosslinkable.
  • the adhesive layer preferably contains either a photoinitiator for radiation initiation of the crosslinking or an initiating component for the chemical initiation of the crosslinking or an accelerator component for accelerating the crosslinking.
  • a particularly preferred embodiment of the edge strip according to the invention is characterized in that the adhesive layer is sprayed onto the cover layer.
  • the edge strip may also include other layers.
  • the invention is based on the finding that the cold bonding of the edge strip with the narrow surface necessitates the high expenditure of energy required for activating or melting the melt or functional layer in the processes known from the prior art or from practice is, can be avoided.
  • a pressure-sensitive adhesive is used and the edge strip can be connected by pressure with the narrow surface. On the one hand, this considerably reduces the necessary expenditure of energy and, on the other hand, damage to the covering layer due to its indirect heating is avoided since the connection between the edge strip and the narrow surface takes place without heating.
  • Another positive aspect is that permanent clogging or residual tackiness of the adhesive joint can almost be ruled out by the inventive at least partial crosslinking of the pressure-sensitive adhesive and consequently no dirt and dust particles in the joint area or in the transition area between the workpiece or furniture board and edge strip accumulate. Soiling of the joint can thus be avoided. This is particularly advantageous when using the furniture panels in the health sector. It should also be noted that the inventive method is characterized by a particularly high efficiency, since the energy consumption is considerably lower compared to the known methods.
  • FIGURE shows a schematic representation of a cross section through a furniture panel, which is connected to the inventive method with an edge strip.
  • a furniture panel 3 is shown.
  • the furniture panel 3 is provided on both sides with a coating 6.
  • This coating 6 may be, for example, films or resin-impregnated papers.
  • an edge strip 1 is connected to at least one narrow surface of the furniture panel 3.
  • the edge strip 1 has at least one front-side cover layer 4.
  • the edge strip 1-arranged on the back side of the cover layer 4-and / or the narrow surface has at least one adhesive layer 5.
  • the adhesive layer 5 is formed on the basis of a pressure-sensitive pressure-sensitive adhesive.
  • the adhesive layer 5 is provided with at least one additive. This may be, for example, a resin for the improvement of the pressure-sensitive adhesive or else stabilizers, antioxidants, fillers or the like. According to the invention
  • Edge strip 1 applied to the Schmalf pool and connected by pressure with the narrow surface In the course of the process according to the invention, the pressure-sensitive pressure-sensitive adhesive of the adhesive layer 5 is at least partially crosslinked.
  • the crosslinking of the pressure-sensitive adhesive of the adhesive layer 5 is initiated by irradiation with a radiation source 7.
  • the radiation source 7 may in particular be a source of UV radiation. It is within the scope of the invention that the adhesion layer 5 contains a photoinitiator, which is preferably activated by irradiation with a radiation source 7 and subsequently initiates the crosslinking of the pressure-sensitive pressure-sensitive adhesive of the adhesion layer 5.
  • the crosslinking of the pressure-sensitive adhesive of the adhesive layer 5 is carried out after the connection of the edge strip 1 and the narrow surface.
  • the pressure-sensitive adhesive of the adhesive layer 5 is only partially crosslinked.
  • the pressure-sensitive adhesive of the adhesive layer 5 is crosslinked only in the region of the joint surface 8 between edge strip 1 and narrow surface. The only partially cross-linking can be controlled in particular by the penetration depth of the radiation.
  • the radiation sources 7 may be part of a device for the connection of furniture panel 3 and edge strip 1. In principle, it is also within the scope of the invention that the radiation sources 7 can be used mobile and can be arranged above the pressure-sensitive pressure-sensitive adhesive or adhesive layer 5 to be crosslinked if required.
  • the FIGURE shows a first embodiment of the method according to the invention, in which the crosslinking of the pressure-sensitive pressure-sensitive adhesive of the adhesive layer 5 is initiated by irradiation with a radiation source 7.
  • the crosslinking of the pressure-sensitive pressure-sensitive adhesive of the adhesion layer 5 is chemically initiated by at least one initiation component.
  • the crosslinking is then accelerated by at least one accelerator component.
  • Such an embodiment is not shown in the figure.

Abstract

L'invention concerne un procédé de fixation d'une bande de chant (1) à une surface étroite (2) d'une pièce à usiner en forme de plaque, de préférence une plaque de meuble (3), la bande de chant (1) comportant au moins une couche de couverture (4) côté frontal et la bande de chant (1), agencée sur la face arrière de la couche de couverture (4), et/ou la surface étroite (2) comportant au moins une couche adhésive (5). Ledit procédé est caractérisé en ce que la couche adhésive (5) est formée à base d'un adhésif sensible à la pression, en ce que la bande de chant (1) est appliquée sur la surface étroite (2) et raccordée par pression à la surface étroite (2) et en ce que l'adhésif sensible à la pression est partiellement réticulé. En outre, l'invention concerne une bande de chant, en particulier destinée à être utilisée dans le procédé selon l'invention.
EP18731400.0A 2017-07-10 2018-06-11 Bande bordante et procédé pour fixer une telle bande Active EP3651955B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017115360.8A DE102017115360A1 (de) 2017-07-10 2017-07-10 Verfahren zum Befestigen einer Kantenleiste
PCT/EP2018/065361 WO2019011544A1 (fr) 2017-07-10 2018-06-11 Bande de chant et procédé de fixation d'une bande de chant

Publications (2)

Publication Number Publication Date
EP3651955A1 true EP3651955A1 (fr) 2020-05-20
EP3651955B1 EP3651955B1 (fr) 2022-03-16

Family

ID=62620851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18731400.0A Active EP3651955B1 (fr) 2017-07-10 2018-06-11 Bande bordante et procédé pour fixer une telle bande

Country Status (5)

Country Link
EP (1) EP3651955B1 (fr)
DE (1) DE102017115360A1 (fr)
ES (1) ES2914354T3 (fr)
PL (1) PL3651955T3 (fr)
WO (1) WO2019011544A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019113078A1 (de) * 2019-05-17 2020-11-19 Ima Schelling Deutschland Gmbh Bekantungsverfahren zur Anordnung eines Kantenbands an einem Plattenbauteil sowie Möbelplatte

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3011932A (en) 1954-08-05 1961-12-05 John W Harvey Adhesive-bearing veneer strip material, process of making same and process of applying same to plywood panel edges
DE1161677B (de) * 1958-12-10 1964-01-23 Hans Guenter Moeller Verfahren zur kontinuierlichen Beschichtung von insbesondere zur Verkleidung dienenden Platten, beispielsweise Verbundplatten
DE2532503B2 (de) * 1975-07-21 1978-02-23 IMA-Klessmann KG, 4830 Gutersloh Verfahren zum anleimen von kantenmaterial an die kanten plattenfoermiger werkstuecke aus holzwerkstoff
DE19955575B4 (de) * 1999-11-18 2010-04-08 Brandt Kantentechnik Gmbh Verfahren und Vorrichtung zum Anhaften eines Deckmaterials an Werkstückoberflächen von fortlaufend bewegten oder stationär angeordneten platten- oder leistenförmigen Werkstücken
DE10029043A1 (de) 2000-06-13 2002-01-03 Bulthaup Gmbh & Co Möbelplatte und Verfahren zu deren Herstellung
US7189442B1 (en) 2003-10-31 2007-03-13 Steelcase Development Corporation Edge band and edge banding process
DE102006021171A1 (de) 2006-05-06 2007-11-08 W. Döllken & Co. GmbH Deckleiste
DE102012008402B4 (de) * 2012-04-20 2015-10-15 Jowat Ag Verfahren zur Anbringung eines Kantenbands, Kantenband, damit hergestellte Produkte sowie deren Verwendung
DE102015219108A1 (de) * 2015-10-02 2017-04-06 Homag Gmbh Verfahren sowie Vorrichtung zur Schmalflächenbeschichtung

Also Published As

Publication number Publication date
WO2019011544A1 (fr) 2019-01-17
ES2914354T3 (es) 2022-06-09
EP3651955B1 (fr) 2022-03-16
DE102017115360A1 (de) 2019-01-10
PL3651955T3 (pl) 2022-09-05

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