EP1082032B1 - Adhesive closing part, method for producing the same and device for implementing said method - Google Patents
Adhesive closing part, method for producing the same and device for implementing said method Download PDFInfo
- Publication number
- EP1082032B1 EP1082032B1 EP98930722A EP98930722A EP1082032B1 EP 1082032 B1 EP1082032 B1 EP 1082032B1 EP 98930722 A EP98930722 A EP 98930722A EP 98930722 A EP98930722 A EP 98930722A EP 1082032 B1 EP1082032 B1 EP 1082032B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adhesive
- fluorine
- connection
- elements
- foam material
- 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.)
- Expired - Lifetime
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Classifications
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
- A44B18/0069—Details
- A44B18/0076—Adaptations for being fixed to a moulded article during moulding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/27—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/27—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener]
- Y10T24/2783—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener] having filaments constructed from coated, laminated, or composite material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24008—Structurally defined web or sheet [e.g., overall dimension, etc.] including fastener for attaching to external surface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24008—Structurally defined web or sheet [e.g., overall dimension, etc.] including fastener for attaching to external surface
- Y10T428/24017—Hook or barb
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24174—Structurally defined web or sheet [e.g., overall dimension, etc.] including sheet or component perpendicular to plane of web or sheet
Definitions
- the invention relates to an adhesive fastener part, in particular for foaming for upholstery parts of vehicle seats in their manufacture, with adhesive elements on the one hand for connection with corresponding adhesive elements another part of the fastener to form a fastener and with a bonding agent in the manner of an adhesive medium on the other Side of the fastener part to establish a connection with the respective foam material.
- the invention also relates to a method for producing a relevant adhesive fastener part and a device to apply the procedure.
- General-purpose fastener parts are known from EP 0 612 485, wherein the adhesive fastener part is inserted in such a foam form is that the Lanyard in the form of loop elements on the back of the Adhesive fastener part with the respective foam material for producing a come into contact with it.
- the opposite The front of the fastener part has the adhesive elements in the form of connecting hooks, Sticky heads, mushrooms or the like. on that against the intrusion of Foam material are protected, for example by this, as in the European scripture described, from an uncrosslinked thermoplastic are completely surrounded.
- Adhesive elements free and can later with adhesive elements of another adhesive fastener part, for example in the form of a loop band, forming a usual adhesive fastener.
- upholstery materials can be made Define foamed upholstery parts of a motor vehicle seat or passenger seat or rotating components, for example in the form of grinding wheels, with Tool holders on conventional grinding machines and devices connect.
- the foam material mentioned can depend on each object to be molded must be extremely fluid and viscosities have, which are in the range of water or below. It has now shown that when using loop and loop material as Lanyard or the like when using adhesive fleece. the in itself open loops are not completely penetrated by the foam material but rather form a kind of barrier for this that Prevents the penetration of the foam material.
- the curing or baking process for the foam material depends on the Transition points between the loop material and the foam to blowholes, thus to gaseous hollow inclusions, which form a firm connection counteract between the adhesive fastener part and the foam material. Because of the reduced strength of the connection between Adhesive fastener parts and foam material are particularly common during long-term use to release the connection and the adhesive fastener part tears out of the foam material, making it unusable overall of the entire component, for example in the form of a Vehicle seat or a grinding wheel holder.
- EP-A-0809 952 discloses a generic fastener part, which is made of a biodegradable plastic material.
- the individual adhesive elements are adjacent to each other in the known solution opposite double hook elements formed on their a reinforcing rib each on the side facing the tape-like fastener part exhibit.
- On the other side of the fastener is a medium arranged in the form of a water-soluble, resinous material that is a kind of separate after water penetration
- Adhesive layer forms on the adhesive material without the biodegradability of the entire adhesive closure in question is provided.
- the application of an independent adhesive layer as Adhesive medium on the side of the fastener part facing away from the adhesive elements is also the subject of EP-A-0754 416.
- the object of the invention is to further improve an adhesive closure part in such a way that a secure and high-strength connection between the adhesive closure part and the foam material used in each case can be achieved. Furthermore, the invention is based on the object of providing a method for producing a corresponding adhesive closure part and an apparatus for using this method. Such a task is solved by an adhesive fastener part with the features of claim 1, a method with the features of claim 3 and a device with the features of claim 5.
- the adhesive medium is fluorine, it comes between the thus treated fastener part and the respective foam material to a high-strength connection that is difficult to solve, so that there is a long-term connection between the fastener part and the later foam body results. Due to the adhesive medium that penetrates into the adhesive fastener part and is introduced into it in this way, a surface-selective chemical reaction is generated on the adhesive fastener part, which leads to the good connection values with the foam material. Compared to the known solutions, the adhesive medium is not applied separately to the adhesive fastener material as a type of adhesive layer, but rather an integral part of the adhesive fastener.
- fluorine is used as the gaseous adhesive medium to be introduced, preferably with adhesive fastener parts made of polyolefin material
- the of the polyolefin surface are determined by fluorine atoms replaced. This substitution reaction takes place at room temperature. It is not Start or initial reaction required. Now partially on the surface fluorinated hydrocarbons behave completely differently than the previous one Basic material of the fastener part. Because of its high electronegativity the fluorine atom tries to fill its outer electron shells. To become electrons from neighboring carbon and hydrogen atoms deducted.
- An advantage of the fluorine treatment is a reliable adhesion to all polyolefins with an otherwise low surface tension, whereby there is an even penetration with the fluorine material, so that even complicated geometries and surfaces including undercuts, cavities, inner surfaces or the like. receive a fluorine treatment that promotes liability.
- a sufficient number of polar components must be ensured, with polar components of 40 mN / m 2 and more being achievable with polyolefin materials.
- the fluorine is in a nitrogen atmosphere applied, the fluorine input continuously or discontinuously, that is with running or upright fastener part, be carried out well can.
- the storage of fluorine nitrogen mixtures in high pressure cylinders has been around since state of the art for many years and what the toxicology of the matter As far as gas mixtures are concerned, this is in safety data sheets and DIN standards relevant and safely regulated, so that even in large-scale application health risks are not to be feared.
- the adhesive fastener parts to be treated in one Vacuum chamber exposed to the fluorine nitrogen gas atmosphere Due to the Vacuum chamber is avoided with certainty that the fluorine nitrogen gas mixture unintentionally can emerge from the device.
- the device in question can carry out a batch process, in which the adhesive fastener parts to be treated for a predetermined Time to remain stationary in the device or continuously, at which Continuous entry and exit of a continuous belt or a surface of an adhesive fastener part.
- the adhesive fastener part presented below is used in particular for foaming upholstery parts of vehicle seats (not shown) during their manufacture.
- the band-like or sheet-like fastener part has on one side adhesive elements 10 for connecting to corresponding adhesive elements of another fastener part (not shown) to form a customary fastener.
- the touch-and-close fastener part shown in the figure is produced using a conventional method, as is shown, for example, by DE 196 46 318 A1.
- a connecting means is provided for establishing a connection with the respective foam material, for example in the form of a polyurethane foam, which is introduced into the rear of the fastener part.
- the adhesive fastener part itself is formed from a polyolefin plastic material
- polyolefins generally being the general term for polymers of the general structure represent in which R 1 is mostly hydrogen and R 2 is a straight-chain or branched saturated aliphatic or a cycloaliphatic group for hydrogen.
- polymers with aromatic groups for example the phenyl radical (R 2 C 6 H 5 ), see polystyrene) are also classed as polyolefins.
- Polyolefins with great technical importance in the field of fasteners are, for example, polyethylenes, polypropylenes, polybutenes, the occasionally misleading also called polybutylenes or polybutenes, as well as polyisobutenes and poly (4-methyl-1-pentene) s, polymers of the higher ⁇ -olefins, e.g. However, poly (1-hexene), poly (1-octene) or poly (1-octadecene) have So far, only very limited technical application has been found in this field.
- the polyolefins also include copolymers of different olefins, e.g. that of ethylene with propylene.
- the adhesive medium is preferably fluorine and is introduced into the adhesive closure part via subsequent fluorination.
- the fluorine mentioned is used as F 2 and therefore as a gas, preferably in a nitrogen atmosphere.
- the entry of the Fluorine gas to 3% made at room temperature and a negative pressure of approx. 650 mbar.
- the process in question is carried out continuously, which will be explained in more detail.
- a temperature of 40 ° to 50 ° C. is preferably selected and the fluorine input increased to 10% in the nitrogen atmosphere.
- the device according to the invention has a vacuum chamber 12, in which the adhesive fastener parts are exposed to a fluorine-nitrogen gas atmosphere (F 2 / N 2 ).
- a guide roller 14 is rotatably mounted within the vacuum chamber 12 with a direction of rotation according to the part shown.
- the vacuum chamber 12 closes in a connection point 16, to which a discharge pump (vacuum pump), not shown, is connected.
- the desired vacuum for example 650 mbar, can be set via the relevant connection point 16 within the vacuum chamber 12.
- room temperature should prevail in the vacuum chamber 12.
- the vacuum chamber 12 has an inlet 18 and an outlet 20 for the untreated or fluorine-treated fastener part.
- first deflecting roller 22 just behind the input 18 and a second deflecting roller 24 shortly before the exit 20.
- the two deflecting rollers 22, 24 in question permit a directional deflection of the fastener part such that the individual adhesive elements 10 can engage in recesses (not shown) on the surface of the guide roller 14 in order to be at least partially removed from the fluorine nitrogen gas atmosphere in this way.
- An entry of the fluorine gas into the adhesive fastener part thus takes place predominantly along its rear side, which is loop-free and which is later to establish the connection with the foam material of the part to be foamed.
- the entrance 18 and the exit 20 are arranged at a uniform level in the horizontal direction.
- the material transport speed for the tape-like adhesive fastener part is preferably 20 m / min and in the continuous process operation in question, 3% fluorine (F 2 ) is dissolved in the nitrogen atmosphere.
- the temperature inside the vacuum chamber 12 is preferably increased to 40 ° to 50 ° C. and the gaseous fluorine input is increased to 10%. Because of the negative pressure set in the negative pressure chamber 12, the fluorine nitrogen gas mixture cannot escape.
- Adhesive elements 10 are covered, for example in the form of a separable Foil or the like In this case, the foam entry is then on the adhesive elements 10 effectively avoided by the cover and a connection with the foam material is done only on the back of each closure part treated in this way.
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
- Packaging Of Special Articles (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Adhesive Tapes (AREA)
- Seal Device For Vehicle (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Closing Of Containers (AREA)
- Adornments (AREA)
Abstract
Description
Die Erfindung betrifft ein Haftverschlußteil, insbesondere zum Einschäumen bei Polsterteilen von Fahrzeugsitzen bei deren Herstellung, mit Haftelementen auf der einen Seite zum Verbinden mit korrespondierenden Haftelementen eines anderen Haftverschlußteils unter Bildung eines Haftverschlusses und mit einem Verbindungsmittel in der Art eines Haftmediums auf der anderen Seite des Haftverschlußteils zum Herstellen einer Verbindung mit dem jeweiligen Schaummaterial. Die Erfindung betrifft auch ein Verfahren zum Herstellen eines dahingehenden Haftverschlußteils sowie eine Vorrichtung zur Anwendung des Verfahrens.The invention relates to an adhesive fastener part, in particular for foaming for upholstery parts of vehicle seats in their manufacture, with adhesive elements on the one hand for connection with corresponding adhesive elements another part of the fastener to form a fastener and with a bonding agent in the manner of an adhesive medium on the other Side of the fastener part to establish a connection with the respective foam material. The invention also relates to a method for producing a relevant adhesive fastener part and a device to apply the procedure.
Haftverschlußteile in allgemeiner Form sind durch die EP 0 612 485 bekannt, wobei das Haftverschlußteil in einer Einschäumform derart eingelegt ist, daß die Verbindungsmittel in Form von Schlaufenelementen auf der Rückseite des Haftverschlußteils mit dem jeweiligen Schaummaterial zum Herstellen einer festen Verbindung mit diesem in Berührung kommen. Die gegenüberliegende Vorderseite des Haftverschlußteils weist die Haftelemente in Form von Verbindungshaken, Haftköpfen, Pilzen od.dgl. auf, die gegen das Eindringen von Schaummaterial geschützt sind, beispielsweise indem diese, wie in der Europäischen Schrift beschrieben, von einem unvernetzten thermoplastischen Kunststoff vollflächig umgeben sind. Wird nach dem Einschäumvorgang in der Form und Ausformen des geschäumten Teils die Abdeckung entfernt, liegen die Haftelemente frei und können später mit Haftelementen eines anderen Haftverschlußteils, beispielsweise in Form eines Schlaufenbandes, unter Bildung eines üblichen Haftverschlusses verbunden werden.General-purpose fastener parts are known from EP 0 612 485, wherein the adhesive fastener part is inserted in such a foam form is that the Lanyard in the form of loop elements on the back of the Adhesive fastener part with the respective foam material for producing a come into contact with it. The opposite The front of the fastener part has the adhesive elements in the form of connecting hooks, Sticky heads, mushrooms or the like. on that against the intrusion of Foam material are protected, for example by this, as in the European Scripture described, from an uncrosslinked thermoplastic are completely surrounded. Is in the form after the foaming process and molding the foamed part to remove the cover, the Adhesive elements free and can later with adhesive elements of another adhesive fastener part, for example in the form of a loop band, forming a usual adhesive fastener.
Auf diese Art und Weise lassen sich beispielsweise Polsterbezugmaterialien an geschäumten Polsterteilen eines Kraftfahrzeugsitzes oder Fluggastsitzes festlegen oder rotierende Bauteile, beispielsweise in Form von Schleifscheiben, mit Werkzeugaufnahmen an herkömmlichen Schleifmaschinen und Vorrichtungen verbinden. Das angesprochene Schaummaterial kann in Abhängigkeit vom jeweils zu formenden Gegenstand ausgesprochen dünnflüssig sein und Viskositäten aufweisen, die im Bereich von Wasser liegen oder darunter. Es hat sich nun gezeigt, daß bei Verwendung von Schlaufen- und Schlingenmaterial als Verbindungsmittel oder auch bei Einsatz von Haftflausch od.dgl. die an sich offenen Schlingen von dem Schaummaterial nicht vollständig durchdrungen werden, sondern vielmehr für dieses eine Art Barriere ausbilden, die dem Eindringen des Schaummaterials hemmend entgegensteht. Beim anschließenden Aushärte- oder Ausbackvorgang für das Schaummaterial kommt es dann an den Übergangsstellen zwischen dem Schlaufenmaterial und dem Schaum zu Lunkerstellen, also zu gasartigen Hohleinschlüssen, welche einer festen Verbindung zwischen dem Haftverschlußteil und dem Schaummaterial entgegenwirken. Aufgrund der derart reduzierten Festigkeit der Verbindung zwischen Haftverschlußteilen und Schaummaterial kommt es insbesondere bei Dauerbeanspruchungen zu einem Lösen der Verbindung und das Haftverschlußteil reißt aus dem Schaummaterial aus, was insgesamt zum Unbrauchbarwerden des gesamten Bauteils, beispielsweise in Form eines Fahrzeugsitzes oder einer Schleifscheibenaufnahme führen kann.In this way, for example, upholstery materials can be made Define foamed upholstery parts of a motor vehicle seat or passenger seat or rotating components, for example in the form of grinding wheels, with Tool holders on conventional grinding machines and devices connect. The foam material mentioned can depend on each object to be molded must be extremely fluid and viscosities have, which are in the range of water or below. It has now shown that when using loop and loop material as Lanyard or the like when using adhesive fleece. the in itself open loops are not completely penetrated by the foam material but rather form a kind of barrier for this that Prevents the penetration of the foam material. At the subsequent The curing or baking process for the foam material then depends on the Transition points between the loop material and the foam to blowholes, thus to gaseous hollow inclusions, which form a firm connection counteract between the adhesive fastener part and the foam material. Because of the reduced strength of the connection between Adhesive fastener parts and foam material are particularly common during long-term use to release the connection and the adhesive fastener part tears out of the foam material, making it unusable overall of the entire component, for example in the form of a Vehicle seat or a grinding wheel holder.
Durch die EP-A-0809 952 ist ein gattungsgemäßes Haftverschlußteil bekannt, das aus einem biologisch abbaubaren Kunststoffmaterial besteht. Die einzelnen Haftelemente sind bei der bekannten Lösung aus einander benachbart gegenüberliegenden Doppelhakenelementen gebildet, die auf ihrer dem bandartigen Haftverschlußteil zugewandten Seite jeweils eine Verstärkungsrippe aufweisen. Auf der anderen Seite des Haftverschlußtei Is ist als Verbindungsmittel ein Medium angeordnet in Form eines wasserlöslichen, harzartigen Materials, das nach Eindringen von Wasser eine Art separate Klebstoffschicht auf dem Haftverschlußmaterial ausbildet, ohne daß hierbei die biologische Abbaubarkeit des gesamten Haftverschlusses in Frage gestellt wird. Das Anbringen einer eigenständigen Klebstoffschicht als Haftmedium auf der den Haftelementen abgekehrten Seite des Haftverschlußteils ist auch Gegenstand der EP-A-0754 416. Der dahingehende Klebstoffauftrag als Haftmedium erfolgt bei dieser bekannten Lösung über ein Beschichtungsverfahren. Es hat sich gezeigt, daß unabhängig von der Auswahl des Klebstoffmittels als Haftmedium dennoch keine gute Verbindung zwischen Haftverschlußteil und Schaummaterial zustande kommt und daß insbesondere bei der späteren Beanspruchung des Schaummäterials es zu einem Ausreißen und mithin zu einem Lösen der Verbindung zwischen Haftverschlußteil und Schaummaterial kommt. EP-A-0809 952 discloses a generic fastener part, which is made of a biodegradable plastic material. The individual adhesive elements are adjacent to each other in the known solution opposite double hook elements formed on their a reinforcing rib each on the side facing the tape-like fastener part exhibit. On the other side of the fastener is a medium arranged in the form of a water-soluble, resinous material that is a kind of separate after water penetration Adhesive layer forms on the adhesive material without the biodegradability of the entire adhesive closure in question is provided. The application of an independent adhesive layer as Adhesive medium on the side of the fastener part facing away from the adhesive elements is also the subject of EP-A-0754 416. The related In this known solution, adhesive is applied as an adhesive medium a coating process. It has been shown that regardless of the Selection of the adhesive as the adhesive medium is still not a good connection comes between the fastener part and foam material and that especially when the foam material is used later to tear and thus to loosen the connection between Adhesive fastener part and foam material comes.
Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe
zugrunde, ein Haftverschlußteil derart weiter zu verbessern, daß eine sichere
und hochfeste Verbindung zwischen dem Haftverschlußteil und dem
jeweils eingesetzten Schaummaterial erreichbar ist. Des weiteren liegt der
Erfindung die Aufgabe zugrunde, ein Verfahren zum Herstellen eines dahingehenden
Haftverschlußteils zur Verfügung zu stellen sowie eine Vorrichtung
zur Anwendung dieses Verfahrens. Eine dahingehende Aufgabenstellung
löst ein Haftverschlußteil mit den Merkmalen des Anspruches 1,
ein Verfahren mit den Merkmalen des Anspruches 3 sowie eine Vorrichtung
mit den Merkmalen des Anspruches 5.
Dadurch, daß gemäß dem kennzeichnenden Teil des Anspruches 1 das
Haftmedium Fluor ist, kommt es zwischen dem derart behandelten Haftverschlußteil
und dem jeweiligen Schaummaterial zu einer hochfesten Verbindung,
die nur schwer lösbar ist, so daß sich damit auch langfristig eine sichere
Verbindung zwischen dem Haftverschlußteil und dem späteren
Schaumkörper ergibt. Durch das Haftmedium, das in das Haftverschlußteil
eindringt und derart in dieses eingebracht ist, wird am Haftverschlußteil
eine oberflächenselektive chemische Reaktion erzeugt, die zu den guten
Verbindungswerten mit dem Schaummaterial führt. Dabei ist gegenüber
den bekannten Lösungen das Haftmedium nicht als eine Art Klebeschicht
separat auf das Haftverschlußmaterial aufgebracht, sondern eingelagerter
Bestandteil des Haftverschlusses.
Es ist für einen Fachmann auf dem Gebiet der Haftverschluß- und der Einschäumtechnik
überraschend, daß er durch Einbringen eines gasförmigen
Haftmediums auf dem Haftverschlußteil eine bessere Anbindung an das
Schaummaterial erreicht als mittels der bekannten Schlingenware oder mittels
üblicher Klebstoffe, die aufwendig und mithin kostenintensiv herzustellen
sind und bei der beispielsweise die Schlingen räumlich
weit in das Schaummaterial ein- und vordringen. Anstelle einer mechanischen
Verhakung von Schlaufen- oder Schlingenmaterial mit dem Schaum wird
über das jeweils eingebrachte Haftmedium eine Adhäsion zum Schaummaterial
bei seiner Herstellung unter Wärme und Druck erzeugt, was zu höheren Festigkeitswerten
bei der angestrebten Verbindung führt.Proceeding from this prior art, the object of the invention is to further improve an adhesive closure part in such a way that a secure and high-strength connection between the adhesive closure part and the foam material used in each case can be achieved. Furthermore, the invention is based on the object of providing a method for producing a corresponding adhesive closure part and an apparatus for using this method. Such a task is solved by an adhesive fastener part with the features of claim 1, a method with the features of claim 3 and a device with the features of claim 5.
Characterized in that according to the characterizing part of claim 1, the adhesive medium is fluorine, it comes between the thus treated fastener part and the respective foam material to a high-strength connection that is difficult to solve, so that there is a long-term connection between the fastener part and the later foam body results. Due to the adhesive medium that penetrates into the adhesive fastener part and is introduced into it in this way, a surface-selective chemical reaction is generated on the adhesive fastener part, which leads to the good connection values with the foam material. Compared to the known solutions, the adhesive medium is not applied separately to the adhesive fastener material as a type of adhesive layer, but rather an integral part of the adhesive fastener.
It is surprising for a person skilled in the field of fastener and foaming technology that by introducing a gaseous adhesive medium on the fastener part, he achieves a better connection to the foam material than by means of the known loop material or by means of conventional adhesives, which are complex and therefore expensive to produce and where, for example, the loops penetrate and penetrate far into the foam material. Instead of mechanically interlocking the loop or loop material with the foam, the adhesive medium introduced in each case creates an adhesion to the foam material during its production under heat and pressure, which leads to higher strength values for the desired connection.
Sofern Fluor als einzubringendes gasförmiges Haftmedium eingesetzt wird, vorzugsweise bei Haftverschlußteilen aus Polyolefinmaterial, werden die auf der Polyolefinoberfläche bestimmten Wasserstoffatome durch Fluoratome ersetzt. Diese Substitutionsreaktion läuft bei Raumtemperatur ab. Es ist keine Start- oder Initialreaktion erforderlich. Die nun teilweise an der Oberfläche fluorierten Kohlenwasserstoffe verhalten sich gänzlich anders als das vorherige Grundmaterial des Haftverschlußteils. Aufgrund seiner hohen Elektronegativität versucht das Fluoratom seine äußeren Elektronenschalen aufzufüllen. Dazu werden von benachbarten Kohlenstoff- und Wasserstoffatomen Elektronen abgezogen. Man spricht daher von einer induzierten Polarität, die mit den Hauptgrund darstellt für die gute Haftung mit dem Schaummaterial, vorzugsweise aus Polyurethanschaum.If fluorine is used as the gaseous adhesive medium to be introduced, preferably with adhesive fastener parts made of polyolefin material, the of the polyolefin surface are determined by fluorine atoms replaced. This substitution reaction takes place at room temperature. It is not Start or initial reaction required. Now partially on the surface fluorinated hydrocarbons behave completely differently than the previous one Basic material of the fastener part. Because of its high electronegativity the fluorine atom tries to fill its outer electron shells. To become electrons from neighboring carbon and hydrogen atoms deducted. One speaks therefore of an induced polarity, which with the Main reason for good adhesion with the foam material, preferably made of polyurethane foam.
Ein Vorzug der Fluorbehandlung ist eine prozeßsichere Haftung bei allen Polyolefinen mit sonst niedriger Oberflächenspannung, wobei es zu einer gleichmäßigen Durchsetzung mit dem Fluormaterial kommt, so daß auch komplizierte Geometrien und Oberflächen einschließlich Hinterschnitte, Hohlräume, Innenflächen od.dgl. eine die Haftung begünstigende Fluorbehandlung erhalten. Um über die Fluorierung möglichst gute Verbindungswerte zum Schaummaterial zu erreichen, ist auf eine ausreichende Anzahl an polaren Anteilen zu achten, wobei sich bei Polyolefinwerkstoffen polare Anteile von 40 mN/m2 und mehr erzielen lassen. An advantage of the fluorine treatment is a reliable adhesion to all polyolefins with an otherwise low surface tension, whereby there is an even penetration with the fluorine material, so that even complicated geometries and surfaces including undercuts, cavities, inner surfaces or the like. receive a fluorine treatment that promotes liability. In order to achieve the best possible connection values to the foam material via fluorination, a sufficient number of polar components must be ensured, with polar components of 40 mN / m 2 and more being achievable with polyolefin materials.
Bei dem erfindungsgemäßen Verfahren zum Herstellen eines Verschlußteils mit den vorbezeichneten Merkmalen wird das Fluor in einer Stickstoffatmosphäre aufgebracht, wobei der Fluoreintrag kontinuierlich oder diskontinuierlich, also mit laufendem oder stehendem Haftverschlußteil, gut durchgeführt werden kann. Die Lagerung von Fluorstickstoffgemischen in Hochdruckzylindern ist seit vielen Jahren Stand der Technik und was die Toxikologie des dahingehenden Gasgemisches anbelangt, ist dies in Sicherheitsdatenblättern und DIN-Normen einschlägig und sicher geregelt, so daß auch bei einer großtechnischen Anwendung gesundheitliche Risiken nicht zu befürchten sind.In the method according to the invention for producing a closure part with According to the above characteristics, the fluorine is in a nitrogen atmosphere applied, the fluorine input continuously or discontinuously, that is with running or upright fastener part, be carried out well can. The storage of fluorine nitrogen mixtures in high pressure cylinders has been around since state of the art for many years and what the toxicology of the matter As far as gas mixtures are concerned, this is in safety data sheets and DIN standards relevant and safely regulated, so that even in large-scale application health risks are not to be feared.
Bei der erfindungsgemäßen Vorrichtung zum Durchführen des vorbeschriebenen Verfahrens werden die zu behandelnden Haftverschlußteile in einer Unterdruckkammer der Fluorstickstoffgasatmosphäre ausgesetzt. Aufgrund der Unterdruckkammer ist mit Sicherheit vermieden, daß ungewollt das Fluorstickstoffgasgemisch aus der Vorrichtung austreten kann.In the inventive device for performing the above Process the adhesive fastener parts to be treated in one Vacuum chamber exposed to the fluorine nitrogen gas atmosphere. Due to the Vacuum chamber is avoided with certainty that the fluorine nitrogen gas mixture unintentionally can emerge from the device.
Die dahingehende Vorrichtung kann ein diskontinuierliches Verfahren durchführen, bei dem die zu behandelnden Haftverschlußteile für eine vorgebbare Zeit in der Vorrichtung stationär verbleiben oder aber kontinuierlich, bei dem fortlaufend ein gleichbleibender Ein- und Austrag eines durchgehenden Bandes oder einer Fläche eines Haftverschlußteils erfolgt.The device in question can carry out a batch process, in which the adhesive fastener parts to be treated for a predetermined Time to remain stationary in the device or continuously, at which Continuous entry and exit of a continuous belt or a surface of an adhesive fastener part.
Im folgenden wird die beanspruchte Erfindung anhand der Zeichnung näher erläutert. Es zeigt in prinzipieller und nicht maßstäblicher Darstellung die einzige Figur einen Längsschnitt durch die Vorrichtung, mit der sich das erfindungsgemäße Verfahren durchführen läßt, zum Herstellen der beanspruchten erfindungsgemäßen Haftverschlußteile. In the following, the claimed invention is described in more detail with reference to the drawing explained. It shows the principle and not to scale only figure shows a longitudinal section through the device with which the invention Process can be carried out to produce the claimed Adhesive fastener parts according to the invention.
Das im folgenden vorgestellte Haftverschlußteil dient insbesondere dem Einschäumen
bei Polsterteilen von Fahrzeugsitzen (nicht dargestellt) bei deren
Herstellung. Das bandartige oder flächenartige Haftverschlußteil weist auf der
einen Seite Haftelemente 10 auf zum Verbinden mit korrespondierenden
Haftelementen eines anderen Haftverschlußteils (nicht dargestellt) unter Bildung
eines üblichen Haftverschlusses. Das in der Figur dargestellte Haftverschlußteil
wird über ein übliches Verfahren hergestellt, wie es beispielsweise durch die
DE 196 46 318 A1 gezeigt ist. Auf der anderen bzw. auf der Unterseite des
Haftverschlußteils ist zum Herstellen einer Verbindung mit dem jeweiligen
Schaummaterial, beispielsweise in Form eines Polyurethanschaumes, ein
Verbindungsmittel vorgesehen, das in das Haftverschlußteil rückwärtig eingebracht
wird. Das Haftverschlußteil selbst ist aus einem Polyolefin-Kunststoffmaterial
gebildet, wobei Polyolefine allgemein die übergreifende Bezeichnung
für Polymere der allgemeinen Struktur
Polyolefine mit großer technischer Bedeutung auf dem Gebiet der Haftverschlüsse sind beispielsweise Polyethylene, Polypropylene, Polybutene, die gelegentlich irreführend auch Polybutylene oder Polybutene genannt werden, sowie Polyisobutene und Poly(4-methyl-1-penten)e, Polymere der höheren α-Olefine, z.B. Poly(1-hexen), Poly(1-octen) oder Poly(1-octadecen) haben jedoch bisher nur sehr begrenzte technische Anwendung auf diesem Gebiet gefunden. Zu den Polyolefinen zählen auch Copolymere aus unterschiedlichen Olefinen, z.B. die von Ethylen mit Propylen.Polyolefins with great technical importance in the field of fasteners are, for example, polyethylenes, polypropylenes, polybutenes, the occasionally misleading also called polybutylenes or polybutenes, as well as polyisobutenes and poly (4-methyl-1-pentene) s, polymers of the higher α-olefins, e.g. However, poly (1-hexene), poly (1-octene) or poly (1-octadecene) have So far, only very limited technical application has been found in this field. The polyolefins also include copolymers of different olefins, e.g. that of ethylene with propylene.
Das Haftmedium ist vorzugsweise Fluor und wird über eine nachträgliche Fluorierung in das Haftverschlußteil eingebracht. Das angesprochene Fluor wird als F2 und mithin als Gas eingesetzt, vorzugsweise in einer Stickstoffatmosphäre.The adhesive medium is preferably fluorine and is introduced into the adhesive closure part via subsequent fluorination. The fluorine mentioned is used as F 2 and therefore as a gas, preferably in a nitrogen atmosphere.
Vorzugsweise wird nach dem erfindungsgemäßen Verfahren der Eintrag des Fluorgases zu 3 % vorgenommen bei Raumtemperatur und einem Unterdruck von ca. 650 mbar. Das dahingehende Verfahren wird kontinuierlich betrieben, was noch näher erläutert werden wird. Bei einem diskontinuierlichen Eintrageverfahren wird vorzugsweise eine Temperatur von 40° bis 50°C gewählt und der Fluoreintrag auf 10 % in der Stickstoffatmosphäre erhöht.Preferably, the entry of the Fluorine gas to 3% made at room temperature and a negative pressure of approx. 650 mbar. The process in question is carried out continuously, which will be explained in more detail. With a discontinuous entry procedure a temperature of 40 ° to 50 ° C. is preferably selected and the fluorine input increased to 10% in the nitrogen atmosphere.
Die erfindungsgemäße Vorrichtung, wie sie in der Zeichnung dargestellt ist,
weist eine Unterdruckkammer 12 auf, in der die Haftverschlußteile einer Fluor-Stickstoff-Gasatmosphäre
ausgesetzt sind (F2/N2). Innerhalb der Unterdruckkammer
12 ist drehbar eine Führungswalze 14 gelagert mit einem Drehsinn gemäß
dem dargestellten Teil. Auf der Oberseite schließt die Unterdruckkammer 12 in
einer Anschlußstelle 16 ab, an die eine nicht näher dargestellte Abzugspumpe
(Vakuumpumpe) angeschlossen ist. Über die dahingehende Anschlußstelle 16
läßt sich innerhalb der Unterdruckkammer 12 der gewünschte Unterdruck,
beispielsweise 650 mbar, einstellen. Ferner soll in der Unterdruckkammer 12
Raumtemperatur herrschen. Des weiteren weist die Unterdruckkammer 12
einen Eingang 18 und einen Ausgang 20 für das unbehandelte bzw. für das mit
Fluor behandelte Haftverschlußteil auf. The device according to the invention, as shown in the drawing, has a
In Transportrichtung des Haftverschlußteils 10, das mit Pfeilen angegeben ist,
befindet sich kurz hinter dem Eingang 18 eine erste Umlenkrolle 22 und kurz
vor dem Ausgang 20 eine zweite Umlenkrolle 24. Die dahingehenden beiden
Umlenkrollen 22,24 erlauben eine Richtungsumlenkung des Haftverschlußteils
derart, daß die einzelnen Haftelemente 10 in nicht näher dargestellte Ausnehmungen
auf der Oberfläche der Führungswalze 14 eingreifen können, um
derart zumindest teilweise der Fluorstickstoffgasatmosphäre entzogen zu werden.
Ein Eintrag des Fluorgases in das Haftverschlußteil erfolgt also überwiegend
entlang seiner Rückseite, die schlingenfrei ist und die später die Verbindung
mit dem Schaummaterial des zu schäumenden Teils herstellen soll. Der
Eingang 18 und der Ausgang 20 sind in einer einheitlichen Niveauhöhe in
horizontaler Richtung verlaufend angeordnet. Die Material-Transportgeschwindigkeit
für das bandartige Haftverschlußteil beträgt vorzugsweise 20 m/min und
bei dem dahingehenden kontinuierlichen Verfahrensbetrieb wird in der Stickstoffatmosphäre
3 % Fluor(F2) gelöst. Bei einem diskontinuierlichen Betrieb, bei
dem die Führungswalze 14 angehalten ist, wird vorzugsweise die Temperatur
im Inneren der Unterdruckkammer 12 auf 40° bis 50°C erhöht und der gasförmige
Fluoreintrag auf 10 % erhöht. Aufgrund des eingestellten Unterdruckes in
der Unterdruckkammer 12 kann das Fluorstickstoffgasgemisch nicht austreten.In the direction of transport of the
Sofern vorgesehen ist, daß das gesamte Haftverschlußteil mit Fluor versehen
wird, spielt dies insbesondere beim Einschäumen dann keine Rolle, sofern die
Haftelemente 10 abgedeckt sind, beispielsweise in Form einer separierbaren
Folie od.dgl. In einem dahingehenden Fall wird dann der Schaumeintrag auf
die Haftelemente 10 durch die Abdeckung wirksam vermieden und eine Anbindung
mit dem Schaummaterial erfolgt nur über die Rückseite des jeweiligen
derart behandelten Verschlußteils.If it is provided that the entire adhesive fastener part is provided with fluorine
this is of no importance, especially when lathering, provided that
Claims (6)
- Adhesive attachment element, in particular for foaming for padded elements of vehicle seats in the production thereof, having adhesive elements (10) on one side for connection to corresponding adhesive elements of another adhesive attachment element to form an adhesive attachment and having a connection means in the manner of an adhesive medium on the other side of the adhesive attachment element for producing a connection to the respective foam material, characterised in that the adhesive medium is introduced into the adhesive attachment material itself and in that the adhesive medium is fluorine.
- Adhesive attachment element according to claim 1, characterised in that it is composed of a polyolefine material.
- Method for producing an adhesive attachment element according to claim 1 or claim 2, characterised in that the fluorine is applied in the form of a gas in a nitrogen atmosphere.
- Method according to claim 3, characterised in that the addition is effected with continuous or discontinuous operation with 3%-fluorine at ambient temperature or 10%-fluorine at 40° - 50°C and 650 mbar.
- Apparatus for carrying out the method according to claim 3 or claim 4, characterised in that the adhesive attachment elements are exposed to the fluorine-nitrogen gas atmosphere in an underpressure chamber (12).
- Apparatus according to claim 5, characterised in that it has a connection point (16) for a discharge pump and an inlet (18) and an outlet (20) for the adhesive attachment element which is untreated or which has been treated with fluorine.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP1998/003046 WO1999060879A1 (en) | 1998-05-22 | 1998-05-22 | Adhesive closing part, method for producing the same and device for implementing said method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1082032A1 EP1082032A1 (en) | 2001-03-14 |
| EP1082032B1 true EP1082032B1 (en) | 2002-02-13 |
Family
ID=8166960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98930722A Expired - Lifetime EP1082032B1 (en) | 1998-05-22 | 1998-05-22 | Adhesive closing part, method for producing the same and device for implementing said method |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6733860B1 (en) |
| EP (1) | EP1082032B1 (en) |
| JP (1) | JP4017344B2 (en) |
| AT (1) | ATE213128T1 (en) |
| CZ (1) | CZ299114B6 (en) |
| DE (1) | DE59803113D1 (en) |
| ES (1) | ES2172898T3 (en) |
| PL (1) | PL186671B1 (en) |
| WO (1) | WO1999060879A1 (en) |
| ZA (1) | ZA986081B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010031458A1 (en) * | 2008-09-20 | 2010-03-25 | Gottlieb Binder Gmbh & Co. Kg | Method for surface functionalization of a surface fastener part and surface fastener part produced using the method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006028581A1 (en) * | 2006-06-22 | 2007-12-27 | Gottlieb Binder Gmbh & Co. Kg | Method and device for surface functionalization of adhesive fastener parts |
| US11160334B2 (en) | 2017-08-18 | 2021-11-02 | Velcro Ip Holdings Llc | Fastener element shape |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3364058A (en) * | 1964-01-16 | 1968-01-16 | Selby Battersby & Co | Composite floor and deck covering structure |
| US4009304A (en) * | 1971-09-30 | 1977-02-22 | Air Products And Chemicals, Inc. | Fluorinated polyester tire reinforcement materials |
| DE3900619A1 (en) | 1989-01-11 | 1990-07-12 | Nordson Corp | METHOD AND DEVICE FOR PRODUCING A ONE-SIDED POROESE SHEET WITH ADHESIVE |
| DE19505188A1 (en) * | 1995-02-16 | 1996-08-22 | Basf Ag | Multi-layer, fluorine-containing polymeric material |
| GB2303566A (en) | 1995-07-21 | 1997-02-26 | Ykk Europ Ltd | Self-sdhesive fastener |
| JP3577166B2 (en) | 1996-05-31 | 2004-10-13 | Ｙｋｋ株式会社 | Hook-and-loop fastener |
-
1998
- 1998-05-22 WO PCT/EP1998/003046 patent/WO1999060879A1/en active IP Right Grant
- 1998-05-22 AT AT98930722T patent/ATE213128T1/en not_active IP Right Cessation
- 1998-05-22 DE DE59803113T patent/DE59803113D1/en not_active Expired - Lifetime
- 1998-05-22 CZ CZ20004089A patent/CZ299114B6/en not_active IP Right Cessation
- 1998-05-22 JP JP2000550354A patent/JP4017344B2/en not_active Expired - Lifetime
- 1998-05-22 US US09/700,910 patent/US6733860B1/en not_active Expired - Lifetime
- 1998-05-22 ES ES98930722T patent/ES2172898T3/en not_active Expired - Lifetime
- 1998-05-22 EP EP98930722A patent/EP1082032B1/en not_active Expired - Lifetime
- 1998-05-22 PL PL98345094A patent/PL186671B1/en unknown
- 1998-07-09 ZA ZA9806081A patent/ZA986081B/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010031458A1 (en) * | 2008-09-20 | 2010-03-25 | Gottlieb Binder Gmbh & Co. Kg | Method for surface functionalization of a surface fastener part and surface fastener part produced using the method |
| DE102008048205A1 (en) | 2008-09-20 | 2010-04-01 | Gottlieb Binder Gmbh & Co. Kg | Process for the surface functionalization of an adhesive closure part and adhesive closure part produced by the process |
| CN102159108B (en) * | 2008-09-20 | 2013-05-15 | 戈特利布捆扎机械有限及两合公司 | Method for surface functionalization of a surface fastener part and surface fastener part produced using the method |
| US9456662B2 (en) | 2008-09-20 | 2016-10-04 | Gottlieb Binder Gmbh & Co Kg | Method for surface functionalization of a surface fastener part and surface fastener part produced using the method |
Also Published As
| Publication number | Publication date |
|---|---|
| US6733860B1 (en) | 2004-05-11 |
| ZA986081B (en) | 2000-01-20 |
| DE59803113D1 (en) | 2002-03-21 |
| JP4017344B2 (en) | 2007-12-05 |
| CZ20004089A3 (en) | 2001-11-14 |
| JP2002516123A (en) | 2002-06-04 |
| PL186671B1 (en) | 2004-02-27 |
| ES2172898T3 (en) | 2002-10-01 |
| EP1082032A1 (en) | 2001-03-14 |
| CZ299114B6 (en) | 2008-04-23 |
| ATE213128T1 (en) | 2002-02-15 |
| WO1999060879A1 (en) | 1999-12-02 |
| PL345094A1 (en) | 2001-12-03 |
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