EP0623458A2 - Method and apparatus for applying adhesive on paper and/or plastic products - Google Patents

Method and apparatus for applying adhesive on paper and/or plastic products Download PDF

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Publication number
EP0623458A2
EP0623458A2 EP94105820A EP94105820A EP0623458A2 EP 0623458 A2 EP0623458 A2 EP 0623458A2 EP 94105820 A EP94105820 A EP 94105820A EP 94105820 A EP94105820 A EP 94105820A EP 0623458 A2 EP0623458 A2 EP 0623458A2
Authority
EP
European Patent Office
Prior art keywords
sensitive adhesive
material web
pressure
strip
paper
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
EP94105820A
Other languages
German (de)
French (fr)
Other versions
EP0623458B1 (en
EP0623458A3 (en
Inventor
Martin Blümle
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.)
Winkler and Duennebier GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0623458A2 publication Critical patent/EP0623458A2/en
Publication of EP0623458A3 publication Critical patent/EP0623458A3/en
Application granted granted Critical
Publication of EP0623458B1 publication Critical patent/EP0623458B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S229/00—Envelopes, wrappers, and paperboard boxes
    • Y10S229/90—Envelopes, wrappers, and paperboard boxes including means to facilitate handling by a mechanical apparatus during manufacturing or filling
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1317—Means feeding plural workpieces to be joined
    • Y10T156/1322—Severing before bonding or assembling of parts
    • Y10T156/1326—Severing means or member secured thereto also bonds
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1317—Means feeding plural workpieces to be joined
    • Y10T156/1322—Severing before bonding or assembling of parts
    • Y10T156/1339—Delivering cut part in sequence to serially conveyed articles
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1378—Cutter actuated by or secured to bonding element
    • Y10T156/1383—Cutter actuated by or secured to bonding element with liquid applicator
    • Y10T156/1387—Common actuator for bonding and liquid applying means
    • Y10T156/1391—Liquid applied to web before cutting
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1378—Cutter actuated by or secured to bonding element
    • Y10T156/1383—Cutter actuated by or secured to bonding element with liquid applicator
    • Y10T156/1387—Common actuator for bonding and liquid applying means
    • Y10T156/1391—Liquid applied to web before cutting
    • Y10T156/1396—Roller applicator
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1741—Progressive continuous bonding press [e.g., roll couples]
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1798—Surface bonding means and/or assemblymeans with work feeding or handling means with liquid adhesive or adhesive activator applying means

Definitions

  • the invention relates to a method and a device for gluing paper and / or plastic or mixed products such as, in particular, closure flaps for envelopes, paper bags and the like. Like. With a pressure sensitive adhesive and for applying a protective strip that covers the pressure sensitive adhesive until use.
  • the invention has for its object the application of pressure sensitive adhesive and protective strips on paper and / or plastic or. To simplify mixed products both in terms of process and device.
  • the invention provides that a material web with non-stick properties is used as the starting material or that first a non-stick agent is applied to a material web, that the pressure-sensitive adhesive is then applied to the non-stick agent or to the material web equipped with non-stick properties that the Material sheet is cut into individual, strip-shaped elements serving as protective strips after the application of pressure-sensitive adhesive, and that the protective strip, which also serves as the pressure-sensitive adhesive carrier, is finally placed with the pressure-sensitive adhesive directly onto the paper and / or plastic or mixed product or onto a web-shaped intermediate product .
  • the pressure sensitive adhesive is thus first applied to a suitable or pretreated material web and this is then cut into individual elements or into strip-shaped elements, the web material being used to form the protective strips. Immediately after the protective strips have been removed, they are applied to the product and protect them together with the pressure sensitive adhesive this. This type of production is simple and straightforward. The further handling then does not differ from the previous one, because as soon as the protective strip is removed, the pressure-sensitive adhesive remains fully adhered to its base, with the result that the pressure-sensitive adhesive can be used as intended. Further features of the invention, including the features relating to the device, emerge from subclaims in conjunction with the description and the drawing.
  • Mixed products 2 e.g. 3 in the form of envelopes or paper bags according to FIG. 3 with a pressure-sensitive adhesive 4 covered until use with the aid of a protective strip 3, a trough 5 or a doctor blade chamber 5 with pressure-sensitive adhesive 4, an application roller 6 immersed in the pressure-sensitive adhesive 4 to be applied.
  • the device 1 a squeegee device 7, various guiding, pulling and deflecting rollers 8 - 13, a rolling device 14 for a material web 15 forming the protective strip 3 and a cutting device 16 which serves for the separation and / or at the same time as a laying device and with the help of which the separated protective strips 3 be applied to the product.
  • the two rollers 8 are auxiliary pull rollers and are arranged directly in front of the cutting device 16.
  • the rollers 9, 11 and 12 and 13 are pure deflection rollers and the roller 1o is a pressure roller, which serves simultaneously as a counter-pressure and main pull roller (impression roller).
  • the material web 15 is guided in the area of the application roller 6 around the pressure roller 10, which is pivotably mounted on a lever arm 17, wherein an actuator 18 is also assigned to the pivotable pressure roller 10. About the actuator 18 can there is also an interruption in transport by lifting the pulling and pushing roller 10.
  • the actuator 18 also regulates the pressure force with which the pressure roller 10 is pressed onto the application roller 6. All of the above-mentioned components are stored in a machine frame 19 and, if necessary, provided with drives not shown.
  • the material web 15 is drawn off from a roll 2o stored in the unrolling device 14 and initially essentially downwards to the deflecting roller 13 and from there horizontally to the deflecting roller 12 and then again upwards to the deflecting roller 11, the tub 5 with the Pressure sensitive adhesive 4 is bypassed.
  • the material web 15 is guided from the deflection roller 11 to the pressure roller 10, the pressure roller 10 also acting as a deflection roller.
  • the material web 15 then continues obliquely upwards to the deflection roller 9 and then obliquely downwards to the two pulling rollers 8, behind which the cutting device 16 is located.
  • the cutting device 16 comprises a cutting roller 21 with at least one cutting knife 22 (FIG. 3) which interacts with a counter cutting bar 23 or the like according to FIG. 2.
  • the cutting roller 21 separates the protective strip 3 provided with pressure-sensitive adhesive 4 from the material web 15 and then transports it further under vacuum and also places it on the product 2 to be provided with pressure-sensitive adhesive under pressure, as is shown schematically in FIG. 3.
  • a counter-pressure roller 24 is therefore also assigned to the cutting roller 21 (FIG. 2).
  • the counter-pressure roller 24 belongs to a group of several transport rollers 25 of a conveyor section 26 of a production machine 27 for products of interest here, a part 28 of this production machine 27 being shown together with the device 1 in FIG. 1.
  • the device 29 In the direction of transport, behind the cutting roller 21, there is only one device 29 for depositing, the details of which are as little of interest here as the other components of the production machine 27.
  • the function and mode of operation of the device 1 and the method used are as follows.
  • a web is used as the material web 15 which, according to FIG. 3, has a width which is equal to the length of the protective strips 3 to be produced.
  • Any, tear-resistant material can be used as the material for the material web 15, which either already has non-stick properties for the pressure-sensitive adhesive 4 itself or is provided with a non-adhesive agent in a first process step, shown schematically in FIG. 2 with an arrow "X".
  • the material web 15 is a web made of silicone paper. Silicone is suitable as an anti-adhesive in conjunction with the PSA 4 of interest here. In principle, however, any other suitable anti-adhesive can also be used.
  • the material web 15 coated with non-stick agent is guided according to FIG. 2 to and from the application roller 6 Provide pressure sensitive adhesive 4 in the area of strip-shaped surfaces 3o (FIGS. 2 and 3).
  • the strip-shaped surfaces 3o provided with pressure-sensitive adhesive 4 are shorter than the width of the material web 15 and they are at a distance from one another. With the aid of the cutting roller 21 of the cutting device 16, the material web 15 is then cut into individual, strip-shaped elements 3 ', each strip-shaped element 3' bearing pressure-sensitive adhesive 4 corresponding to the surface 30.
  • the strip-shaped elements 3 ′ are protective strips 3 cut off from the material web 15 together with pressure-sensitive adhesive 4, each protective strip 3 serving as a carrier for the pressure-sensitive adhesive 4.
  • the protective strips 3 provided with pressure-sensitive adhesive 4 are then also applied to the product 2, the pressure-sensitive adhesive 4 reaching the product 2 directly and then being covered by the protective strip 3.
  • the pressure-sensitive adhesive 4 is therefore not applied to the product 2 directly with the aid of an application roller corresponding to the application roller 6, but instead using the protective strip 3 which serves as a carrier and, after application, also as a protection.
  • the application roller 6 is an anilox roller in the manner of a gravure roller. It has surfaces 31 (FIG. 4) arranged in strips with recesses 32 arranged in a grid. The surfaces 31 are arranged on the applicator roller 6 at a distance from one another and also extend not over the entire length of the application roller 6. With the aid of the doctor device 7, it is ensured that the application roller 6 transfers pressure sensitive adhesive to the material web 15 only in the area of the surfaces 31 with the depressions 32.
  • the device 1 is arranged above a rising part 33 of the conveyor section 26 of the production machine 27 for the paper and / or plastic or mixed product 2, as shown in FIG. 1.
  • FIG. 5 A modified embodiment of a device 1a is shown in FIG. 5, the same parts bearing the same reference numbers and additionally the letter index a.
  • the device 1a has no trough for pressure sensitive adhesive and also no application roller and also not the other elements which are effective in connection with the application roller, but rather is provided with a nozzle 4o a and with an associated carrying and deflecting roller 41a for applying pressure sensitive adhesive.
  • the nozzle 40a is preferably a slot nozzle and the pressure sensitive adhesive is preferably a hot melt. To apply the pressure-sensitive adhesive, the nozzle 40a works intermittently so that the pressure-sensitive adhesive reaches the material web 15a at a distance from one another.
  • the pressure-sensitive adhesive 4 is arranged on the material web 15 in a planar manner and at a distance from one another and also at a distance from at least one edge 43 (FIG. 3). After application to the product 2, the protective strip 3 therefore preferably covers the pressure-sensitive adhesive 4 on all sides with a protruding edge 44.
  • FIG. 3 relates to the case in which the coated protective strips 3 are applied to “individual products” 2
  • FIG. 6 relates to the case in which the product or intermediate product 2b according to the exemplary embodiment shown in FIG. 6 is not yet in Items cut, web-shaped material is.

Abstract

The invention relates to a method for the glueing of paper and/or plastic or mixed products, especially sealing flaps for envelopes, paper bags and the like, with a contact adhesive, and for the application of a protective strip which covers the contact adhesive until it is used. The core of the invention lies in a) using a material web having non-stick properties as starting material and b) first applying a non-stick means to the material web, c) then applying the contact adhesive onto the non-stick means or onto the material web, d) cutting the material web, after the application of contact adhesive, into individual strip-shaped elements serving as protective strips and e) finally placing the protective strip having the contact adhesive, serving simultaneously as contact adhesive carrier, directly onto the paper and/or mixed product, respectively, or onto a web-shaped material, product or intermediate product. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Beleimen von Papier-und/oder Kunststoff- bzw. Mischprodukten wie insbesondere von Verschlußklappen für Briefumschläge, Papierbeuteln u. dgl. mit einem Haftklebemittel und zum Auftragen eines Schutzstreifens, der das Haftklebemittel bis zum Gebrauch abdeckt.The invention relates to a method and a device for gluing paper and / or plastic or mixed products such as, in particular, closure flaps for envelopes, paper bags and the like. Like. With a pressure sensitive adhesive and for applying a protective strip that covers the pressure sensitive adhesive until use.

Es ist bekannt, die Verschlußklappen von Briefumschlägen, Beuteln und anderen, ähnlichen Papier-und/oder Kunststoff- bzw. Mischprodukten bereits bei der Herstellung mit einem Haftklebemittel zu versehen und dieses zunächst mit einem Schutzstreifen abzudecken, damit die Verschlußklappe nicht zur Unzeit sowie in unerwünschter und unkontrollierter Weise an beliebigen Stellen haften bleibt. Erst wenn die Verschlußklappen verschlossen werden sollen, werden die Schutzstreifen abgezogen, so daß das Haftklebemittel wirksam werden kann.It is known to provide the flaps of envelopes, pouches and other similar paper and / or plastic or mixed products with a pressure sensitive adhesive during manufacture and to first cover this with a protective strip so that the flap does not go out of time and in an undesirable manner and sticks to any place in an uncontrolled manner. Only when the flaps are to be closed are the protective strips removed, so that the pressure-sensitive adhesive can take effect.

In Verbindung mit Briefumschlägen ist es ferner bekannt, das Haftklebemittel unmittelbar auf die Verschlußkappe oder auf die Bodenklappe aufzutragen und sodann mit dem Schutzstreifen abzudecken. Der hiermit verbundene technische Aufwand ist erheblich.In connection with envelopes it is also known to apply the pressure sensitive adhesive directly to the sealing cap or to the bottom flap and then to cover it with the protective strip. The associated technical effort is considerable.

Der Erfindung liegt die Aufgabe zugrunde, das Aufbringen von Haftklebemittel und Schutzstreifen auf Papier-und/oder Kunststoff-bzw. Mischprodukte sowohl verfahrens- als auch vorrichtungsmäßig zu vereinfachen.The invention has for its object the application of pressure sensitive adhesive and protective strips on paper and / or plastic or. To simplify mixed products both in terms of process and device.

Zur Lösung dieser Aufgabe sieht die Erfindung vor, daß als Ausgangswerkstoff eine Materialbahn mit Antihafteigenschaften verwendet wird bzw. daß zunächst ein Antihaftmittel auf eine Materialbahn aufgebracht wird, daß sodann das Haftklebemittel auf das Antihaftmittel bzw. auf die mit Antihafteigenschaften ausgestattete Materialbahn aufgebracht wird, daß die Materialbahn nach dem Auftragen von Haftklebemittel in einzelne, als Schutzstreifen dienende, streifenförmige Elemente geschnitten wird und daß schließlich der zugleich als Haftklebemittelträger dienende Schutzstreifen mit dem Haftklebemittel unmittelbar auf das Papier- und/oder Kunststoff- bzw. Mischprodukt bzw. auf ein bahnförmiges Zwischenprodukt aufgelegt wird.To achieve this object, the invention provides that a material web with non-stick properties is used as the starting material or that first a non-stick agent is applied to a material web, that the pressure-sensitive adhesive is then applied to the non-stick agent or to the material web equipped with non-stick properties that the Material sheet is cut into individual, strip-shaped elements serving as protective strips after the application of pressure-sensitive adhesive, and that the protective strip, which also serves as the pressure-sensitive adhesive carrier, is finally placed with the pressure-sensitive adhesive directly onto the paper and / or plastic or mixed product or onto a web-shaped intermediate product .

Das Haftklebemittel wird somit zunächst auf eine geeignete oder vorbehandelte Materialbahn aufgetragen und diese wird sodann in einzelne Elemente bzw. in streifenförmige Elemente geschnitten, wobei das Bahnmaterial zur Bildung der Schutzstreifen dient. Unmittelbar nach dem Abtrennen der Schutzstreifen werden diese zusammen mit dem Haftklebemittel auf das Produkt aufgebracht und schützen dieses. Diese Art der Herstellung ist einfach und unkonpliziert. Die weitere Handhabung unterscheidet sich dann nicht von der bisherigen, denn sobald der Schutzstreifen abgezogen wird, bleibt das Haftklebemittel in vollem Umfang auf seiner Unterlage haften mit der Folge, daß das Haftklebemittel bestimmungsgemäß verwendet werden kann. Weitere Merkmale der Erfindung einschließlich der die Vorrichtung betreffenden Merkmale gehen aus Unteransprüchen in Verbindung mit der Beschreibung und der Zeichnung hervor.The pressure sensitive adhesive is thus first applied to a suitable or pretreated material web and this is then cut into individual elements or into strip-shaped elements, the web material being used to form the protective strips. Immediately after the protective strips have been removed, they are applied to the product and protect them together with the pressure sensitive adhesive this. This type of production is simple and straightforward. The further handling then does not differ from the previous one, because as soon as the protective strip is removed, the pressure-sensitive adhesive remains fully adhered to its base, with the result that the pressure-sensitive adhesive can be used as intended. Further features of the invention, including the features relating to the device, emerge from subclaims in conjunction with the description and the drawing.

Die Erfindung wird nachstehend anhand von Ausführungsbeispielen, die in der Zeichnung dargestellt sind, näher beschrieben. Dabei zeigen:

Fig. 1:
schematisch sowie in Seitenansicht einen Teil einer Vorrichtung zum Herstellen von Papier- und/oder Kunststoff- bzw. Mischprodukten zusammen mit einer Vorrichtung zum Auftragen von Haftklebemittel und Schutzstreifen;
Fig. 2:
in schematischer Darstellung sowie abgebrochen und in größerem Maßstab eine Seitenansicht der Vorrichtung zum Auftragen von Haftklebemittel und Schutzstreifen;
Fig. 3:
in perspektivischer Darstellung sowie in nochmals größerem Maßstab eine Einzelheit der Vorrichtung zum Auftragen von Haftklebemittel und Schutzstreifen;
Fig. 4:
in Seitenansicht sowie in nochmals anderem Maßstab eine Auftragswalze für Haftklebemittel nach Art einer Tiefdruckwalze;
Fig. 5:
eine Darstellung wie in Fig. 2 von einer abgewandelten Ausführungsform und
Fig. 6:
eine Darstellung wie in Fig. 3 bei Verwendung von Verfahren und Vorrichtung in Verbindung mit einem bahnförmigen Material, Produkt oder Zwischenprodukt.
The invention is described below with reference to exemplary embodiments which are illustrated in the drawing. Show:
Fig. 1:
schematically and in side view, part of a device for producing paper and / or plastic or mixed products together with a device for applying pressure sensitive adhesive and protective strips;
Fig. 2:
in a schematic representation and broken and on a larger scale a side view of the device for applying pressure sensitive adhesive and protective strips;
Fig. 3:
in perspective and on a still larger scale a detail of the device for applying pressure sensitive adhesive and protective strips;
Fig. 4:
in side view and in yet another scale an application roller for pressure sensitive adhesives in the manner of a gravure roller;
Fig. 5:
a representation as in Fig. 2 of a modified embodiment and
Fig. 6:
a representation as in Fig. 3 when using the method and device in connection with a sheet material, product or intermediate.

Eine Vorrichtung 1 zum Beleimen von Papier-und/oder Kunststoff-bzw. Mischprodukten 2 z.B. in Gestalt von Briefumschlägen oder Papierbeuteln gemäß Fig. 3 mit einem bis zum Gebrauch mit Hilfe eines Schutzstreifens 3 abgedeckten Haftklebemittel 4 umfasst eine Wanne 5 oder eine Rakelkammer 5 mit Haftklebemittel 4, eine in das aufzutragende Haftklebemittel 4 eintauchende Auftragswalze 6. Ferner umfasst die Vorrichtung 1 eine Rakeleinrichtung 7, verschiedene Führungs-, Zug- und Umlenkwalzen 8 - 13, eine Abrolleinrichtung 14 für eine den Schutzstreifen 3 bildende Materialbahn 15 und eine Schneidvorrichtung 16, die zum Abtrennen und/oder zugleich als Auflegevorrichtung dient und mit deren Hilfe die abgetrennten Schutzstreifen 3 auf das Produkt aufgebracht werden.A device 1 for gluing paper and / or plastic or. Mixed products 2 e.g. 3 in the form of envelopes or paper bags according to FIG. 3 with a pressure-sensitive adhesive 4 covered until use with the aid of a protective strip 3, a trough 5 or a doctor blade chamber 5 with pressure-sensitive adhesive 4, an application roller 6 immersed in the pressure-sensitive adhesive 4 to be applied. Furthermore, the device 1 a squeegee device 7, various guiding, pulling and deflecting rollers 8 - 13, a rolling device 14 for a material web 15 forming the protective strip 3 and a cutting device 16 which serves for the separation and / or at the same time as a laying device and with the help of which the separated protective strips 3 be applied to the product.

Die beiden Walzen 8 sind Hilfs-Zugwalzen und unmittelbar vor der Schneidvorrichtung 16 angeordnet. Die Walzen 9, 11 und 12 sowie 13 sind reine Umlenkwalzen und die Walze 1o ist eine Druckwalze, die gleichzeitig als Gegendruck- und Hauptzugwalze (Presseur) dient. Die Materialbahn 15 ist im Bereich der Auftragswalze 6 um die abschwenkbar an einem Hebelarm 17 gelagerte Druckwalze 1o geführt, wobei ferner ein Stellantrieb 18 der abschwenkbaren Druckwalze 1o zugeordnet ist. Über den Stellantrieb 18 kann auch eine Transportunterbrechnung durch Abheben der Zug- und Druckwalze 1o erfolgen. Der Stellantrieb 18 regelt auch die Andruckkraft, mit der die Druckwalze 1o auf die Auftragswalze 6 gedrückt wird. Alle oben genannten Komponenten sind in einem Maschinengestellt 19 gelagert und in erforderlichem Umfang mit nicht dagestellen Antrieben versehen.The two rollers 8 are auxiliary pull rollers and are arranged directly in front of the cutting device 16. The rollers 9, 11 and 12 and 13 are pure deflection rollers and the roller 1o is a pressure roller, which serves simultaneously as a counter-pressure and main pull roller (impression roller). The material web 15 is guided in the area of the application roller 6 around the pressure roller 10, which is pivotably mounted on a lever arm 17, wherein an actuator 18 is also assigned to the pivotable pressure roller 10. About the actuator 18 can there is also an interruption in transport by lifting the pulling and pushing roller 10. The actuator 18 also regulates the pressure force with which the pressure roller 10 is pressed onto the application roller 6. All of the above-mentioned components are stored in a machine frame 19 and, if necessary, provided with drives not shown.

Die Materialbahn 15 wird von einer in der Abrolleinrichtung 14 gelagerten Rolle 2o abgezogen und zunächst im wesentlichen nach unten zu der Umlenkwalze 13 und von dort horizontal weiter zu der Umlenkwalze 12 und daraufhin wieder nach oben zu der Umlenkwalze 11 geführt, wobei die Wanne 5 mit dem Haftklebemittel 4 umfahren wird. Von der Umlenkwalze 11 ist die Materialbahn 15 zur Druckwalze 10 geführt, wobei die Druckwalze 1o zugleich als Umlenkwalze wirkt. Die Materialbahn 15 verläuft sodann weiter schräg nach oben zur Umlenkwalze 9 und sodann schräg nach unten zu den beiden Zugwalzen 8, hinter denen sich die Schneidvorrichtung 16 befindet.The material web 15 is drawn off from a roll 2o stored in the unrolling device 14 and initially essentially downwards to the deflecting roller 13 and from there horizontally to the deflecting roller 12 and then again upwards to the deflecting roller 11, the tub 5 with the Pressure sensitive adhesive 4 is bypassed. The material web 15 is guided from the deflection roller 11 to the pressure roller 10, the pressure roller 10 also acting as a deflection roller. The material web 15 then continues obliquely upwards to the deflection roller 9 and then obliquely downwards to the two pulling rollers 8, behind which the cutting device 16 is located.

Die Schneidvorrichtung 16 umfasst eine Schneidwalze 21 mit mindestens einem Schneidmesser 22 (Fig. 3), das mit einer Gegenschneidleiste 23 o. dgl. gemäß Fig. 2 zusammenwirkt.The cutting device 16 comprises a cutting roller 21 with at least one cutting knife 22 (FIG. 3) which interacts with a counter cutting bar 23 or the like according to FIG. 2.

Die Schneidwalze 21 trennt den mit Haftklebemittel 4 versehenen Schutzstreifen 3 von der Materialbahn 15 ab und transportiert ihn sodann mit Vakuum weiter und legt ihn auch auf das mit Haftklebemittel zu versehene Produkt 2 unter Druck auf, wie dies schematisch aus Fig. 3 hervorgeht. Zu diesem Zweck ist daher auch eine Gegendruckwalze 24 der Schneidwalze 21 zugeordnet (Fig. 2).The cutting roller 21 separates the protective strip 3 provided with pressure-sensitive adhesive 4 from the material web 15 and then transports it further under vacuum and also places it on the product 2 to be provided with pressure-sensitive adhesive under pressure, as is shown schematically in FIG. 3. For this purpose, a counter-pressure roller 24 is therefore also assigned to the cutting roller 21 (FIG. 2).

Die Gegendruckwalze 24 gehört zu einer Gruppe von mehreren Transportwalzen 25 einer Förderstrecke 26 einer Produktionsmaschine 27 für hier interessierende Produkte, wobei ein Teil 28 dieser Produktionsmaschine 27 zusammen mit der Vorrichtung 1 in Fig. 1 dargestellt ist. In Transportrichtung hinter der Schneidwalze 21 befindet sich lediglich noch eine zum Ablegen dienende Vorrichtung 29, deren Einzelheiten hier ebenso wenig interessieren wie die übrigen Komponenten der Produktionsmaschine 27.The counter-pressure roller 24 belongs to a group of several transport rollers 25 of a conveyor section 26 of a production machine 27 for products of interest here, a part 28 of this production machine 27 being shown together with the device 1 in FIG. 1. In the direction of transport, behind the cutting roller 21, there is only one device 29 for depositing, the details of which are as little of interest here as the other components of the production machine 27.

Die Funktion und Arbeitsweise der Vorrichtung 1 und das dabei angewendete Verfahren sind wie folgt.The function and mode of operation of the device 1 and the method used are as follows.

Als Materialbahn 15 wird eine Bahn verwendet, die gemäß Fig. 3 eine Breite besitzt, die gleich der Länge der herzustellenden Schutzstreifen 3 ist. Als Werkstoff für die Materialbahn 15 kann ein beliebiges, reißfestes Material verwendet werden, das entweder bereits selbst Antihafteigenschaften für das Haftklebemittel 4 besitzt oder in einem ersten und in Fig. 2 mit einem Pfeil "X" schematisch dargestellten Verfahrensschritt mit einem Antihaftmittel versehen wird.A web is used as the material web 15 which, according to FIG. 3, has a width which is equal to the length of the protective strips 3 to be produced. Any, tear-resistant material can be used as the material for the material web 15, which either already has non-stick properties for the pressure-sensitive adhesive 4 itself or is provided with a non-adhesive agent in a first process step, shown schematically in FIG. 2 with an arrow "X".

Gemäß Ausführungsbeispiel handelt es sich bei der Materialbahn 15 um eine Bahn aus Silikonpapier. Silikon eignet sich als Antihaftmittel in Verbindung mit dem hier interessierenden Haftklebemittel 4. Grundsätzlich kann aber auch jedes andere, geeignete Antihaftmittel verwendet werden.According to the exemplary embodiment, the material web 15 is a web made of silicone paper. Silicone is suitable as an anti-adhesive in conjunction with the PSA 4 of interest here. In principle, however, any other suitable anti-adhesive can also be used.

Die mit Antihaftmittel beschichtete Materialbahn 15 wird gemäß Fig. 2 zu der Auftragswalze 6 geführt und von dieser im Bereich von streifenförmigen Flächen 3o mit Haftklebemittel 4 versehen (Figuren 2 und 3).The material web 15 coated with non-stick agent is guided according to FIG. 2 to and from the application roller 6 Provide pressure sensitive adhesive 4 in the area of strip-shaped surfaces 3o (FIGS. 2 and 3).

Die mit Haftklebemittel 4 versehenen, streifenförmigen Flächen 3o sind kürzer als die Breite der Materialbahn 15 und sie befinden sich im Abstand voneinander. Mit Hilfe der Schneidwalze 21 der Schneidvorrichtung 16 wird die Materialbahn 15 sodann in einzelne, streifenförmige Elemente 3 ' geschnitten, wobei jedes streifenförmige Element 3' entsprechend der Fläche 3o Haftklebemittel 4 trägt. Bei den streifenförmigen Elementen 3' handelt es sich um von der Materialbahn 15 abgeschnittene Schutzstreifen 3 zusammen mit Haftklebemittel 4, wobei jeder Schutzstreifen 3 als Träger für das Haftklebemittel 4 dient.The strip-shaped surfaces 3o provided with pressure-sensitive adhesive 4 are shorter than the width of the material web 15 and they are at a distance from one another. With the aid of the cutting roller 21 of the cutting device 16, the material web 15 is then cut into individual, strip-shaped elements 3 ', each strip-shaped element 3' bearing pressure-sensitive adhesive 4 corresponding to the surface 30. The strip-shaped elements 3 ′ are protective strips 3 cut off from the material web 15 together with pressure-sensitive adhesive 4, each protective strip 3 serving as a carrier for the pressure-sensitive adhesive 4.

Daraufhin erfolgt noch die Aufbringung der mit Haftklebemittel 4 versehenen Schutzstreifen 3 auf das Produkt 2, wobei das Haftklebemittel 4 unmittelbar auf das Produkt 2 gelangt und von dem Schutzstreifen 3 dann abgedeckt ist. Das Aufbringen des Haftklebemittels 4 auf das Produkt 2 erfolgt also nicht direkt mit Hilfe einer Auftragswalze entsprechend der Auftragswalze 6, sondern unter Verwendung des als Träger sowie nach dem Auftragen auch als Schutz dienenden Schutzstreifens 3.The protective strips 3 provided with pressure-sensitive adhesive 4 are then also applied to the product 2, the pressure-sensitive adhesive 4 reaching the product 2 directly and then being covered by the protective strip 3. The pressure-sensitive adhesive 4 is therefore not applied to the product 2 directly with the aid of an application roller corresponding to the application roller 6, but instead using the protective strip 3 which serves as a carrier and, after application, also as a protection.

Die Auftragswalze 6 ist eine Rasterwalze nach Art einer Tiefdruckwalze. Sie weist streifenförmig angeordnete Flächen 31 (Fig. 4) mit rasterförmig angeordneten Vertiefungen 32 auf. Die Flächen 31 sind auf der Auftragswalze 6 im Abstand voneinander angeordnet und erstrecken sich auch nicht über die gesamte Länge der Auftragswalze 6. Mit Hilfe der Rakeleinrichtung 7 wird dafür gesorgt, daß die Auftragswalze 6 nur im Bereich der Flächen 31 mit den Vertiefungen 32 Haftklebemittel an die Materialbahn 15 überträgt.The application roller 6 is an anilox roller in the manner of a gravure roller. It has surfaces 31 (FIG. 4) arranged in strips with recesses 32 arranged in a grid. The surfaces 31 are arranged on the applicator roller 6 at a distance from one another and also extend not over the entire length of the application roller 6. With the aid of the doctor device 7, it is ensured that the application roller 6 transfers pressure sensitive adhesive to the material web 15 only in the area of the surfaces 31 with the depressions 32.

Die Vorrichtung 1 ist schließlich gemäß Ausführungsbeispiel über einem ansteigenden Teil 33 der Förderstrecke 26 der Produktionsmaschine 27 für das Papier- und/ oder Kunststoff- bzw. Mischprodukt 2 angeordnet, wie dies in Fig. 1 dargestellt ist.Finally, according to the exemplary embodiment, the device 1 is arranged above a rising part 33 of the conveyor section 26 of the production machine 27 for the paper and / or plastic or mixed product 2, as shown in FIG. 1.

Eine abgewandelte Ausführungsform von einer Vorrichtung 1a ist in Fig. 5 dargestellt, wobei gleiche Teile dieselben Bezugszahlen und zusätzlich den Buchstabenindex a tragen.A modified embodiment of a device 1a is shown in FIG. 5, the same parts bearing the same reference numbers and additionally the letter index a.

Die Vorrichtung 1a weist keine Wanne für Haftklebemittel und auch keine Auftragswalze und auch nicht die anderen, in Verbindung mit der Auftragswalze wirksamen Elemente auf, sondern sie ist mit einer Düse 4o a und mit einer zugehörigen Trage- und Umlenkwalze 41a zum Auftragen von Haftklebemittel versehen. Die Düse 40a ist vorzugsweise eine Schlitzdüse und bei dem Haftklebemittel handelt es sich vorzugsweise um einen Heißleim. Zum Auftragen des Haftklebemittels arbeitet die Düse 40a intermittierend, damit das Haftklebemittel jeweils mit Abstand voneinander auf die Materialbahn 15 a gelangt.The device 1a has no trough for pressure sensitive adhesive and also no application roller and also not the other elements which are effective in connection with the application roller, but rather is provided with a nozzle 4o a and with an associated carrying and deflecting roller 41a for applying pressure sensitive adhesive. The nozzle 40a is preferably a slot nozzle and the pressure sensitive adhesive is preferably a hot melt. To apply the pressure-sensitive adhesive, the nozzle 40a works intermittently so that the pressure-sensitive adhesive reaches the material web 15a at a distance from one another.

Im Unterschied zu der zuerst beschriebenen Vorrichtung 1 befindet sich ferner ein zusätzliches Zugwalzenpaar 42a für die Materialbahn 15 a unmittelbar vor der Düse 40a.In contrast to the device 1 described first, there is also an additional pair of drawing rollers 42a for the material web 15a immediately in front of the nozzle 40a.

Alle anderen Komponenten der Vorrichtung 1a stammen mit der Vorrichtung 1 überein, wobei wie in den Darstellungen von Fig. 1 und Fig. 5 an sich bekannte Antriebs- und Steuerungselemente nicht dargestellt sind.All other components of the device 1a correspond to the device 1, but drive and control elements known per se are not shown, as in the representations of FIGS. 1 and 5.

Für beide Ausführungsbeispiele gilt ferner, daß das Haftklebemittel 4 flächig sowie im Abstand voneinander und auch mit Abstand von mindestens einem Rand 43 (Fig. 3) auf der Materialbahn 15 angeordnet wird. Nach dem Aufbringen auf das Produkt 2 deckt der Schutzstreifen 3 daher vorzugsweise allseitig das Haftklebemittel 4 mit einem überstehenden Rand 44 ab.It also applies to both exemplary embodiments that the pressure-sensitive adhesive 4 is arranged on the material web 15 in a planar manner and at a distance from one another and also at a distance from at least one edge 43 (FIG. 3). After application to the product 2, the protective strip 3 therefore preferably covers the pressure-sensitive adhesive 4 on all sides with a protruding edge 44.

Schließlich wird auch in beiden Fällen der mit Haftklebemittel 4 beschichtete Bahnabschnitt bzw. das streifenförmige Element 3' quer zu seiner größten Länge von der Materialbahn 15 abgetrennt und auch in dieser Lage auf das Produkt 2 aufgebracht.Finally, in both cases the web section coated with pressure-sensitive adhesive 4 or the strip-shaped element 3 ′ is separated from the material web 15 transversely to its greatest length and is also applied to the product 2 in this position.

Während Fig. 3 den Fall betrifft, daß die beschichteten Schutzstreifen 3 auf "Einzelprodukte" 2 aufgetragen werden, betrifft Fig. 6 den Fall, daß es sich bei dem Produkt oder Zwischenprodukt 2b gemäß dem in Fig. 6 dargestellten Ausführungsbeispiel um ein noch nicht in Einzelteile geschnittenes, bahnförmiges Material handelt.While FIG. 3 relates to the case in which the coated protective strips 3 are applied to “individual products” 2, FIG. 6 relates to the case in which the product or intermediate product 2b according to the exemplary embodiment shown in FIG. 6 is not yet in Items cut, web-shaped material is.

Claims (12)

Verfahren zum Beleimen von Papier-und/oder Kunststoff- bzw. Mischprodukten (2, 2b), insbesondere von Verschlußklappen für Briefumschläge, Papierbeutel u. dgl. mit einem Haftklebemittel (4) und zum Auftragen eines Schutzstreifens, der das Haftklebemittel bis zum Gebrauch abdeckt, dadurch gekennzeichnet, a) daß als Ausgangswerkstoff eine Materialbahn (15) mit Antihafteigenschaften verwendet wird bzw. b) daß zunächst ein Antihaftmittel auf die Materialbahn (15) aufgebracht wird, c) daß sodann das Haftklebemittel (4) auf das Antihaftmittel bzw. auf die Materialbahn (15) aufgebracht wird, d) daß die Materialbahn (15) nach dem Auftragen von Haftklebemittel (4) in einzelne, als Schutzstreifen (3) dienende, streifenförmige Elemente (3') geschnitten wird und e) daß schließlich der zugleich als Haftklebemittelträger dienende Schutzstreifen (3) mit dem Haftklebemittel (4) unmittelbar auf das Papier- und/ oder - bzw. Mischprodukt (2) bzw. auf ein bahnförmiges Material, Produkt oder Zwischenprodukt (2b) aufgelegt wird. Process for gluing paper and / or plastic or mixed products (2, 2b), in particular closure flaps for envelopes, paper bags and the like. Like. With a pressure sensitive adhesive (4) and for applying a protective strip that covers the pressure sensitive adhesive until use, characterized in that a) that a material web (15) with non-stick properties is used as the starting material or b) that an anti-adhesive is first applied to the material web (15), c) that the pressure-sensitive adhesive (4) is then applied to the non-adhesive or to the material web (15), d) that the material web (15) after the application of pressure sensitive adhesive (4) is cut into individual strip-shaped elements (3 ') serving as protective strips (3) and e) that the protective strip (3), which also serves as a pressure-sensitive adhesive carrier, is finally placed with the pressure-sensitive adhesive (4) directly on the paper and / or - or mixed product (2) or on a sheet-like material, product or intermediate product (2b). Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als antihaftbeschichtete Materialbahn (15) eine Silikonpapierbahn verwendet wird.Method according to claim 1, characterized in that a silicone paper web is used as the non-stick coated material web (15). Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Haftklebemittel (4) flächig sowie im Abstand voneinander auf der Materialbahn (15) angeordnet wird.Method according to one or more of the preceding claims, characterized in that pressure-sensitive adhesive (4) is arranged flat and at a distance from one another on the material web (15). Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Haftklebemittel (4) mit Abstand von mindestens einem Rand (43) auf der Materialbahn (15) angeordnet wird.Method according to one or more of the preceding claims, characterized in that the pressure-sensitive adhesive (4) is arranged on the material web (15) at a distance from at least one edge (43). Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß mit Haftklebemittel (4) versehene streifenförmige Elemente (3') von der Materialbahn (15) quer zu ihrer Längsausdehnung abgetrennt und auf die Produkte (2, 2b) aufgetragen werden.Method according to one or more of the preceding claims, characterized in that strip-shaped elements (3 ') provided with pressure-sensitive adhesive (4) are separated from the material web (15) transversely to their longitudinal extent and applied to the products (2, 2b). Vorrichtung zum Beleimen von Papier- und/oder Kunststoff- bzw. Mischprodukten (2) mit einem bis zum Gebrauch mit Hilfe eines Schutzstreifens (3) abgedeckten Haftklebemittel (4), dadurch gekennzeichnet, daß eine Wanne (5) bzw. eine Rakelkammer (5) mit Haftklebemittel (4), eine in das aufzutragende Haftklebemittel (4) eintauchende Auftragswalze (6) und eine Rakeleinrichtung (7) sowie Führungs-, Zug- und Umlenkwalzen (8-13) und eine Schneidvorrichtung (16) für eine Materialbahn (15) vorgesehen sind.Device for gluing paper and / or plastic or mixed products (2) with a pressure sensitive adhesive (4) covered until use with the aid of a protective strip (3), characterized in that a trough (5) or a doctor blade chamber (5 ) with pressure sensitive adhesive (4), an application roller (6) dipping into the pressure sensitive adhesive (4) to be applied and a doctor device (7) as well as guiding, pulling and deflecting rollers (8-13) and a cutting device (16) for a material web (15 ) are provided. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die von einer Rolle (2o) abgezogene Materialbahn (15) zunächst abwärts und sodann unterhalb der Wanne (5) bzw. Rakelkammer (5) für das Haftklebemittel (4) und dann auf deren anderen Seite und dort wieder nach oben geführt ist und sodann auf die Auftragswalze (6) zu und von dieser weg sowie schließlich zu der Schneidvorrichtung (16) geführt ist.Apparatus according to claim 6, characterized in that the material web (15) drawn off from a roll (2o) is first led downwards and then below the trough (5) or doctor chamber (5) for the pressure sensitive adhesive (4) and then on the other side and there again upwards and then to the applicator roller (6) to and from this and finally to the cutting device (16). Vorrichtung nach einem oder meheren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Schneidvorrichtung (16) zugleich als Auflegevorrichtung zum Auflegen der abgetrennten, mit Haftklebemittel (4) versehenen Schutzstreifen (3) auf die Papier- und/oder Kunststoff- bzw. Mischprodukte (2, 2b) vorgesehen ist.Device according to one or more of the preceding claims, characterized in that the cutting device (16) also acts as a laying device for laying the separated protective strips (3) provided with pressure sensitive adhesive (4) on the paper and / or plastic or mixed products (2 , 2b) is provided. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Materialbahn (15) im Bereich der Auftragswalze (6) um eine abschwenkbare, an einem Hebelarm (17) gelagerte, zugleich als Zugwalze dienende Druckwalze (1o) geführt ist.Device according to one or more of the preceding claims, characterized in that the material web (15) in the area of the application roller (6) is guided around a swiveling pressure roller (1o) mounted on a lever arm (17) and at the same time serving as a pull roller. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Auftragswalze (6) streifenförmig angeordnete Flächen (31) mit rasterförmig angeordneten Vertiefungen (32) nach Art einer Tiefdruckwalze aufweist.Device according to one or more of the preceding claims, characterized in that the application roller (6) has surfaces (31) arranged in strip form with recesses (32) arranged in a grid pattern in the manner of a gravure roller. Vorrichtung zum Beleimen von Papier- und/oder Kunststoff- bzw. Mischprodukten mit einem bis zum Gebrauch mit Hilfe eines Schutzstreifens abgedeckten Haftklebemittels , dadurch gekennzeichnet, daß eine intermittierend arbeitende Düse (4oa) zum Auftragen des Haftklebemittels (4) auf die Materialbahn (15a) und eine Schneidvorrichtung (16a) zum Abtrennen von streifenförmigen Elementen von der Materialbahn (15a) sowiezum Auflegen der streifenförmigen Elemente auf das Produkt vorgesehen sind.Device for gluing paper and / or plastic or mixed products with a pressure sensitive adhesive covered until use with the aid of a protective strip, characterized in that an intermittent working nozzle (4oa) for applying the pressure sensitive adhesive (4) to the material web (15a) and a cutting device (16a) for separating strip-shaped elements from the material web (15a) and for placing the strip-shaped elements on the product. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, gekennzeichnet durch die Verwendung der Merkmale der Ansprüche 7 - 12 in Verbindung mit einem bahnförmigen Material, Zwischenprodukt oder Produkt (2b).Device according to one or more of the preceding claims, characterized by the use of the features of claims 7-12 in connection with a sheet-like material, intermediate or product (2b).
EP94105820A 1993-05-04 1994-04-15 Method and apparatus for applying adhesive on paper and/or plastic products Expired - Lifetime EP0623458B1 (en)

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DE4314685A DE4314685A1 (en) 1993-05-04 1993-05-04 Method and device for gluing paper and / or plastic or mixed products with a pressure sensitive adhesive

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EP0623458A3 EP0623458A3 (en) 1996-01-03
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Also Published As

Publication number Publication date
EP0623458B1 (en) 1999-09-01
DE4314685A1 (en) 1994-11-10
JPH07148870A (en) 1995-06-13
ES2136675T3 (en) 1999-12-01
US5776285A (en) 1998-07-07
DE59408675D1 (en) 1999-10-07
EP0623458A3 (en) 1996-01-03

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