EP0863957B1 - Transfer belt for applying adhesive and a process for manufacturing same - Google Patents

Transfer belt for applying adhesive and a process for manufacturing same Download PDF

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Publication number
EP0863957B1
EP0863957B1 EP96942282A EP96942282A EP0863957B1 EP 0863957 B1 EP0863957 B1 EP 0863957B1 EP 96942282 A EP96942282 A EP 96942282A EP 96942282 A EP96942282 A EP 96942282A EP 0863957 B1 EP0863957 B1 EP 0863957B1
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EP
European Patent Office
Prior art keywords
sensitive adhesive
pressure sensitive
transfer
sheets
releasing agent
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
Application number
EP96942282A
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German (de)
French (fr)
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EP0863957A2 (en
Inventor
Johannes A. Ritter
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Individual
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Individual
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Publication of EP0863957A2 publication Critical patent/EP0863957A2/en
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Publication of EP0863957B1 publication Critical patent/EP0863957B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/64—Addition to the formed paper by contacting paper with a device carrying the material the material being non-fluent at the moment of transfer, e.g. in form of preformed, at least partially hardened coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • B05D1/286—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers using a temporary backing to which the coating has been applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/10—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an adhesive 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/906—Roll or coil
    • 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
    • Y10T156/18—Surface bonding means and/or assembly means with handle or handgrip
    • 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
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • 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
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2839—Web or sheet containing structurally defined element or component and having an adhesive outermost layer with release or antistick coating
    • 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
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2848—Three or more layers

Definitions

  • the present invention relates to a transfer path according to the preamble of claim 1, a method for Production of a transfer track according to the preamble of patent claim 11 and a device for using a transfer track according to the preamble of patent claim 19.
  • the invention is based on a transfer track, the Top with a first separator and its bottom is coated with a second separator, the second separator a much stronger separation force has as the first separator, and a method for Production of the transfer path and a device for Using the same.
  • JP-A-05-043847 describes an adhesive-coated on both sides, Silicone-treated carrier tape is described, in which the adhesive coated pages are each covered with a release paper and that Carrier tape with a corona discharge before applying the adhesive is treated.
  • the invention is based on the object that initially to improve the transfer path and to design the method in such a way that it can be realized more cheaply.
  • the invention provides for this that the first separator with self-adhesive pressure sensitive adhesive in the form of an aqueous Dispersion of a pearl polymer for transferring the pressure sensitive adhesive onto sheets Paper is coated and the first separator does not promote wetting Silica-based anti-transmission agent is added.
  • the transfer train can be coated in a central location with pressure sensitive adhesive and together with the pressure sensitive adhesive applied to them are made transportable. So that will the one who wishes to coat his paper sheets with pressure sensitive adhesive from which Production of the transfer tape coated with pressure sensitive adhesive, which he from the central office can get the application ready.
  • Add starch-based thickeners are expedient Refinements of the transfer sheet coated with the pressure sensitive adhesive in the Subclaims specified.
  • the transfer path mentioned above can be produced in a simple manner that the first separator with self-adhesive pressure sensitive adhesive in the form of a aqueous dispersion of a pearl polymer for transferring the pressure sensitive adhesive Sheet of paper or the like material coated and him a Wetting-promoting but not transmission-inhibiting agent based on silica is added.
  • Preferred refinements of the method are further Subclaims specified.
  • the device for using the invention sees a first storage device for that rotatable holding a supply roll out with pressure sensitive adhesive coated transfer track, a transfer section with Printing and counter-pressure roller and a second Storage device for receiving a sleeve for the Rewinding for a role to include the Transfer web and a sheet feeder before.
  • the Storage devices can be above or below the Sheet feeder can be arranged.
  • the staggering or scaling can for example be realized in that under a contact surfaces of a stack of sheets a sheet removal device is arranged, the a shingling or staggering device is connected downstream in the sheet conveying direction, taking the sheets from the bottom with high Speed taken individually and in the shed or Stagger device are braked so that the scales with a given height or are staggered. It is also recommended to consider the extent the braking of the sheets in the relay device to control according to a desired height. Is the Very small height, such as for sticky notes is desired, one also speaks of scaly arches. A large scale height is particularly suitable for that Manufacture of self-adhesive labels.
  • the carrier web can consist, for example, of kraft paper with a basis weight of approximately 100 g / cm 2 or of a non-stretchable polypropylene film with a basis weight of approximately 50-60 g / cm 2 .
  • the surface of the carrier web 2 which is to be coated and faces upward in the illustration according to FIG. 1 is coated over the entire surface with a first separator 4.
  • the carrier 2 is coated over the entire surface with a second separator 3.
  • the first separator and the second separator are selected such that the first separator 4 is less repellent for the pressure-sensitive adhesive 5 which is subsequently to be applied to it over its entire surface, that is to say it has a lower separation force than the second separator 3 for this pressure-sensitive adhesive 5.
  • the degree of pressure-sensitive adhesive repellency can be adjusted by selecting the layer thickness.
  • the first separator can consist of a silicone layer of, for example, 3 g / cm 2 basis weight and the second separator of a silicone layer of, for example, 5 g / cm 2 basis weight.
  • the silicone layer of the first separator 4 is chosen to be so thin that it can protrude through small areas of the carrier web to which the pressure-sensitive adhesive can bind.
  • the first separator 4 can contain a silicone-based wetting-promoting but not transfer-inhibiting agent, such as lumites from BASF, and optionally a starch-based caking agent, such as Colargral from BASF.
  • the silicone layer of the second separator 3 is made so thick that it completely closes the carrier web 2 for the pressure sensitive adhesive and the pressure sensitive adhesive therefore does not find any possibility of adhesion.
  • a pearl polymer such as, is suitable as contact adhesive 5 see, for example, U.S. Patent 3,691,140 or in German patents 28 36 319 or 24 17 312 is described.
  • a permanent pressure sensitive adhesive can also be used for example for the production of Adhesive labels that have a much finer grain as a pearl polymer.
  • the pearl polymer mentioned is before Coating as an aqueous dispersion. If as Separator the silicone layer mentioned is used to improve the liability of the dispersion on the first separator of the dispersion before coating A suitable amount of starch-based thickener added.
  • a suitable thickener is for example that under the name Colagral in Commercially available product.
  • the production of the transfer track 1 succeeds for example with the system shown in FIG. 3, at one unwind station 20, three coating stations 22, 24, 26 and a winding station 28 are arranged one behind the other.
  • the unwind station 20 is from one on trestles around a horizontal axis rotatably mounted carrier web roll 21, the carrier web 2 continuously unwound and a pulley Applicator 23 of the first coating station 22 fed.
  • the first application 23 is on the Top of the carrier web 2 by means of one in one Silicon bath circulating applicator roll silicone solution applied and then to the desired thickness calendered.
  • the silicone bath can, if necessary Lumites and possibly also the Colargral added his.
  • the one on the top with a weak one Carrier web 2 coated with silicone layer led on the downstream side through a first dryer 29, in which the solvent or dispersant for the Silicon expelled from the applied dispersion is, so that on the first dryer 29th leaving carrier web 2 superficially a thin Silicone layer is applied as the first separator 4.
  • the carrier web prepared in this way is in the conveying direction passed through a second coating unit 25, in which by means of another applicator roller on the Another silicone layer on the back of the carrier web applied and then on the desired Layer thickness is set.
  • Downstream is the Carrier web passed through a second dryer 35, in which is the solvent or dispersant for the back coating of the carrier web 2 driven out is so that the leaving the second dryer 35 Carrier web 2 on the top with the first separator 4th and on the back with the second separator 3 from greater layer thickness is provided.
  • So far equipped carrier web 2 is downstream on the downstream second dryer 35 by a third coating unit 27 performed, in which on the first separator Dispersion of the pearl polymer by means of another Application roller is applied.
  • the one in the trough, in which the applicator roller rotates Pearl polymer dispersion is what was previously mentioned Thickener and the wetting agent in the the desired amount has been added.
  • the amount of the thickener to be added may only be as large be that after coating the Pressure sensitive adhesive dispersion on the first separator contiguous, essentially single-ply Pearl layer of pressure sensitive adhesive on the first separator 4 the carrier web 2 is obtained.
  • the carrier web led a third dryer 37 in which the total water content of the adhesive coating as well of the thickener and the wetting agent is driven out. Leaves the third dryer 37 then a transfer lane 1, which on the back with the second separator with high separation force and on the Top with a separator low separation force as well on this with pressure sensitive adhesive in the form of a Perl polymer is provided.
  • the transfer line 1 will in the reeling station 28 towards a storage drum a roll 55 wound. After separation of the coiled transfer web from the third Dryer 37 subsequent transfer web 1 is the Roll 55 with the transfer web wound up ready for transport.
  • the pressure sensitive adhesive 5 applied to the transfer web 1 is in the device designated as a whole with 60 4 on sheets of paper or the like material applied.
  • the device 60 rests on a movable one Underframe 61, in which the drives for the various rollers to be described below are accommodated.
  • Each sheet from a sheet stack 62, whose end edge against a contact surface 66 is applied by the device 60 in the conveying direction 63 transported and in a sheet collector 64 am End of device 60 issued or on a roll 65 wound up.
  • the device 60 has a separating section 72, a replica of this in the conveying direction 63 Scaling and staggering device 74 and one Transfer section 76, the graduation section 74 is connected downstream.
  • the separating section 72 has a suction roller 80 on that below the contact surface 66 of the stack 62nd is arranged and with a high number of revolutions, for example 10,000 revolutions per hour (depending on the type of bow) around their parallel to the leading edge of the stack 62 Axis is driven by rotation.
  • the suction roll 80 is a hollow roller and has several on its periphery evenly distributed, axially parallel suction slots. in the The interior of the hollow roller is essentially stationary an intake duct that is immediately below each the bottom sheet of the stack 62 adjacent Suction slot ends. If the suction channel to a suction pump is connected and the suction roll 80 in rotation is offset (in the representation after Fig.
  • the bottom is Sheet of stack 62 passed by one below it running suction slit sucked in and in the conveying direction 63 subtracted from the stack 62.
  • the arch removed arrives immediately behind the suction roller between two rolls, not shown, of a pair of rolls, of which one is driven and one of the withdrawn sheets Relatively high feed rate given by the Corresponds to the speed at which the bow of the Stack 62 has been withdrawn.
  • the sheets of the stack 62 are therefore successively from the bottom of the stack 62 deducted, the leading edge 33 of a following Sheet 12 still slightly above the rear edge of one preceding sheet 11 lies.
  • the scaling and staggering device 74 has two pairs of rollers spaced apart in the feed direction 63 82, 84, each of which is driven by a roller is.
  • the speed at which the rollers of the Roller pairs 82, 84 are driven is essential less than the take-off speed of a sheet from Stack 62.
  • a subsequent sheet therefore slides on over the top of a in the conveying direction 23 previous sheet, to the extent that between the leading edge 31 of a preceding sheet 11 and the leading edge 33 of a next succeeding almost completely lying on it 12 a constant Section d, called scale or scale height, remains (Fig. 2).
  • the scaled or staggered sheets go to the device 74 between a pressure roller 86 and a lower elastic towards the pressure roller mounted counter-pressure roller 88 of the transfer section 76, one of which is driven.
  • the Pressure roller 86 and backing roller 88 are in the way transfer lane 1 through device 60.
  • a solid stand 71 Furthermore rises above the path of the arch through the Device 60 is a solid stand 71, from which in Conveying direction 63 spaces two mandrels 73 and 75 protrude.
  • a roller sits on the foremost mandrel 73 55, which is generated from the device according to FIG. 3 and has been wound up with adhesive 5 contains coated transfer sheet 1.
  • the staggered sheets run into the gap between the Printing roller 86 or the pressure sensitive adhesive 5 of the transfer web 1 and the counter-pressure roller 88 and get there Pressure in contact with the outside of the pressure sensitive adhesive 5. Since the top of the sheets of stack 62 is at least in one starting from the leading edge of the sheets Width d are coated with an adhesion promoter, becomes the pressure sensitive adhesive 5 during the joint run the transfer belt 1 and the staggered sheets between the upper pressure roller 86 and the Counter-pressure roller 88 on the free, that is part of the. not covered by the following sheet Top of an arch, i.e. parallel to one Front edge 31 of the foremost sheet 11 lying Strips of width d transfer and stick there. At Passing the staggered sheets between rollers 86 and 88 will be on the forefront Arch sections of width d a contiguous Pressure sensitive adhesive layer 5 from the first separator 4 of the transfer path 1 transferred.
  • the transfer path is turned at an acute angle Feed direction 63 deducted, the on the pressure sensitive adhesive adhering shingled or staggered sheets from the transfer sheet still coated with pressure sensitive adhesive taken and steered over the further deflection roller 87 and wound up on the roll 65.
  • the Separation strip 89 removed in FIG. 4 and the roller 87 shifted much further to the right.
  • the transfer ribbon is found 1 without pressure sensitive adhesive completely on the roll 65. It can then again as role 50 of the above in Relation to the unwinding station 20 described in FIG. 3 fed and coated again with pressure sensitive adhesive.
  • the device according to FIG. 4 relates to the first variant an embodiment in which the transfer belt 1 supporting rollers 55 and 65 in the base 61 are accommodated.
  • On roll 55a it is Transfer belt 1a with pressure-sensitive adhesive coating 5a on a Coiled sleeve 73a, which rotates on one with the supporting framework of the substructure 61 firmly connected Carrier 71a is attached.
  • Transfer train 1a is running via the counter pressure roller driven according to arrow f 88 88 and from this to a sleeve 75a which is rotatable another support carried by the substructure 61 72a is attached.
  • the transfer path 1a is moved by the counter pressure roller 88 along with the scaled or staggered sheets through the gap between the platen roller 88 and the Pinch roller 86 is pulled, the transfer path 1a of is pressed below against the arc stream.
  • the one Rolling leaving arc stream is through here separating strip 89a arranged below the same Transfer belt 1a separated and from a downstream Suction roll 90, which is arranged with one below it moving roller 91 a further nip forms, seized.
  • An endless top strap 92 consisting of several bands running in parallel, runs according to arrow 93 around the suction roll 90 and one downstream of this arranged roller 95 um, and a lower strap 96 which is also several in parallel has running belts, runs according to arrow 97 around the Roller 91 and a downstream side to this under the Roller 95 arranged roller 98 um.
  • the distance of the Suction roller 90 with an associated roller 91 to the separating strip 89a is adjustable and depends on the Cutting length.
  • the suction roll 90 and the others Rollers 91, 95, 98 rotate so quickly that the Scaled or staggered sheets isolated again become. That way along the feed path between the suction roller pair 90, 91 and roller pair 96.98 Scattered sheets are in the sheet collector 64 issued and stacked. In this bow collector the individual sheets, whose in the conveying direction 63 rear lower edge in width d (except for the bottom sheet of the stack) with Pressure sensitive adhesive is coated.
  • the second variant of the device according to FIG. 5 looks as a further embodiment of the invention reduced, rising above the device 60 Stand 71b on which the roller 55 as in the 4 shown in FIG Right of arrow f 55 is held rotatable.
  • the Counter-pressure roller 88 pulls this with pressure-sensitive adhesive 5 coated transfer belt 1 together with the according Figure 2 scaled or staggered sheets in the Nip between the counter-pressure roller 88 and the Pressure roller 86, with the transfer path 1 from above is pressed onto the arc stream, and transmits the Pressure sensitive adhesive on the individual sheets included in this Embodiment again on the top with Adhesion promoter (primer) and on the bottom with a release aid are coated.
  • the transfer belt at the last-mentioned embodiment with the scaled or staggered sheets on the sleeve 75a wound that the sheets are on the outside.
  • the Invention which the suction roll and the associated other rollers comprehensive separation station as well the sheet collector 64 and the separating strip 89a are eliminated.

Abstract

PCT No. PCT/EP96/05306 Sec. 371 Date May 28, 1998 Sec. 102(e) Date May 28, 1998 PCT Filed Nov. 29, 1996 PCT Pub. No. WO97/20006 PCT Pub. Date Jun. 5, 1997Described is a transfer web, whose upper side is coated with a first releasing agent and whose underside is coated with a second releasing agent, whereby the second releasing agent exhibits a significantly greater peel force than the first releasing agent. To expand the possible applications of the web, it is provided that the first releasing agent is coated with self-adhering pressure sensitive adhesive in order to transfer the pressure sensitive adhesive onto blanks (sheets) of paper or similar material. Furthermore, a process for the manufacture and a device for the use of the transfer web are described

Description

Die vorliegende Erfindung betrifft eine Transferbahn gemäß dem Oberbegriff des Patentanspruchs 1, ein Verfahren zur Herstellung einer Transferbahn gemäß dem Oberbegriff des Patentanspruchs 11 und eine Vorrichtung zur Verwendung einer Transferbahn nach dem Oberbegriff des Patentanspruchs 19.The present invention relates to a transfer path according to the preamble of claim 1, a method for Production of a transfer track according to the preamble of patent claim 11 and a device for using a transfer track according to the preamble of patent claim 19.

Die Erfindung geht aus von einer Transferbahn, deren Oberseite mit einem ersten Trenner und deren Unterseite mit einem zweiten Trenner beschichtet ist, wobei der zweite Trenner eine wesentlich stärkere Trennkraft aufweist als der erste Trenner, sowie ein Verfahren zur Herstellung der Transferbahn und eine Vorrichtung zur Verwendung derselben.The invention is based on a transfer track, the Top with a first separator and its bottom is coated with a second separator, the second separator a much stronger separation force has as the first separator, and a method for Production of the transfer path and a device for Using the same.

In dem Dokument DE-A-43 05 081 wird ein Verfahren und eine Vorrichtung zum Auftragen von selbstklebendem Haftkleber auf Bogen aus Papier oder dergleichen Material beschrieben, bei dem die leicht überlappt geförderten Bogen auf der Oberseite mit einem Haftvermittler (Primer) und auf der Unterseite mit einer Ablösehilfe (Release) beschichtet und anschließend einer Haftkleberauftragstation zugeführt werden. Die Überlappung hat den Zweck, für das Auftragen von Primer und Release einen kontinuierlichen Bogenstrom ohne Zwischenräume zwischen den einzelnen Bogen zu erzeugen. Der Auftrag des Haftklebers auf die Bogenoberseite geschieht mittels eines endlosen Transferbandes, auf welches sich in Förderrichtung erstreckende Haftkleberstreifen mit vorgegebenem Abstand der Streifen untereinander aufgetragen sind. Anschließend werden die mit Haftkleber beschichteten Bogen gestapelt und auf das gewünschte Format zu Haftzetteln geschnitten.In document DE-A-43 05 081 a method and a device for applying self-adhesive pressure sensitive adhesive on sheets of paper or similar material described, in which the slightly overlapped funded Sheet on the top with an adhesion promoter (primer) and on the underside with a release aid coated and then a pressure sensitive adhesive application station be fed. The overlap has that Purpose, for applying primer and release one continuous arc flow with no gaps between to create the single sheet. The application of the pressure sensitive adhesive on the top of the sheet is done by means of a endless transfer belt on which is in the conveying direction extending pressure sensitive adhesive strips with given Distance between the strips are applied to each other. Subsequently are coated with pressure sensitive adhesive Sheets are stacked and cut into sticky notes in the desired format cut.

Dieses Verfahren hat den Nachteil, daß zu seiner Durchführung eine relativ komplexe und damit teuere Maschine erforderlich ist, so daß deren Anschaffung für viele Betriebe nicht in Betracht kommt. Die Handhabung des Haftklebers erfordert den Einsatz geschulter und erfahrener Fachkräfte. This method has the disadvantage that it has to be carried out a relatively complex and therefore expensive machine is necessary so that their acquisition for many companies is out of the question. Handling the pressure sensitive adhesive requires the use of trained and experienced Professionals.

In dem Dokument US-A-5,380,395 wird ein für Handbetrieb geeigneter Klebstoffspender beschrieben, bei welchem ein doppelseitig mit einem Trenner beschichtetes Trägerband einseitig mit Klebstoff beschichtet ist und von einer in einem Gehäuse aufgewickelten Transferbandrolle von Hand abgezogen werden kann, während der Klebstoff auf eine Unterlage übertragen wird.US-A-5,380,395 describes one suitable for manual operation Adhesive dispenser described, in which a double-sided with a separator coated carrier tape is coated on one side with adhesive and by an in a transfer ribbon roll wound up in a housing can be pulled off by hand can while the adhesive is being transferred to a base.

In dem Dokument JP-A-05-043847 wird ein beidseitig mit Klebstoff beschichtetes, siliconbehandeltes Trägerband beschrieben, bei welchem die mit Klebstoff beschichteten Seiten jeweils mit einem Trennpapier abgedeckt sind und das Trägerband vor dem Aufbringen des Klebstoffs mit einer Corona-Entladung behandelt wird.JP-A-05-043847 describes an adhesive-coated on both sides, Silicone-treated carrier tape is described, in which the adhesive coated pages are each covered with a release paper and that Carrier tape with a corona discharge before applying the adhesive is treated.

In dem Dokument DE-A-42 10 329 wird zur Verbindung einer nahezu leeren Papierrolle mit einer vollen Papierrolle ein zweiseitig wirkender Klebstreifen benutzt, wobei auf einer Seite des Klebstreifens zwei nebeneinander angeordnete Klebschichten unterschiedlich starker Klebefähigkeit ausgebildet sind. In document DE-A-42 10 329 an almost empty connection is used Paper roll with a full paper roll a double-sided adhesive tape used, with two side by side on one side of the adhesive tape Adhesive layers of different strength are formed.

Ausgehend von der US-A-5 380 395 liegt der Erfindung die Aufgabe zugrunde, die eingangs genannte Transferbahn zu verbessern und das genannte Verfahren so zu gestalten, dass sie sich kostengünstiger realisieren läßt.Based on the US-A-5 380 395, the invention is based on the object that initially to improve the transfer path and to design the method in such a way that it can be realized more cheaply.

Bei der eingangs genannten Transferbahn ist dazu erfindungsgemäß vorgesehen, dass der erste Trenner mit selbstklebendem Haftkleber in Form einer wässrigen Dispersion eines Perl-Polymerisats zum Übertragen des Haftklebers auf Bogen aus Papier beschichtet ist und dem ersten Trenner ein benetzungsförderndes aber nicht übertragungshemmendes Mittel auf Silica-Basis zugesetzt ist. Die Transferbahn kann dadurch an zentraler Stelle mit Haftkleber beschichtet und zusammen mit dem auf sie aufgetragenen Haftkleber transportfähig gemacht werden. Damit wird derjenige, der seine Papierbogen mit Haftkleber zu beschichten wünscht, von der Herstellung des mit Haftkleber beschichteten Transferbandes entlastet, das er von der zentralen Stelle Anwendung fertig beziehen kann. In Weiterbildung der Erfindung empfiehlt es sich, der Dispersion vor der Beschichtung ein Verdickungsmittel auf Stärkebasis zuzugeben. Im übrigen sind zweckmäßige Ausgestaltungen der mit dem Haftkleber beschichteten Transferbahn in den Unteransprüchen angegeben.In the transfer path mentioned at the outset, the invention provides for this that the first separator with self-adhesive pressure sensitive adhesive in the form of an aqueous Dispersion of a pearl polymer for transferring the pressure sensitive adhesive onto sheets Paper is coated and the first separator does not promote wetting Silica-based anti-transmission agent is added. The transfer train can be coated in a central location with pressure sensitive adhesive and together with the pressure sensitive adhesive applied to them are made transportable. So that will the one who wishes to coat his paper sheets with pressure sensitive adhesive from which Production of the transfer tape coated with pressure sensitive adhesive, which he from the central office can get the application ready. In further training of Invention, it is recommended to use the dispersion before coating Add starch-based thickeners. For the rest, are expedient Refinements of the transfer sheet coated with the pressure sensitive adhesive in the Subclaims specified.

Die oben genannte Aufgabe wird ferner durch ein Verfahren gemäß Patentanspruch 11 gelöst.The above object is further accomplished by a method solved according to claim 11.

Die vorstehend genannte Transferbahn kann in einfacher Weise dadurch hergestellt werden, dass der erste Trenner mit selbstklebendem Haftkleber in Form einer wässrigen Dispersion eines Perl-Polymerisats zum Übertragen des Haftklebers auf Bogen aus Papier oder dergleichen Material beschichtet und ihm ein benetzungsförderndes aber nicht übertragungshemmendes Mittel auf Silica-Basis zugesetzt wird. Bevorzugte Ausgestaltungen des Verfahrens sind in weiteren Unteransprüchen angegeben. The transfer path mentioned above can be produced in a simple manner that the first separator with self-adhesive pressure sensitive adhesive in the form of a aqueous dispersion of a pearl polymer for transferring the pressure sensitive adhesive Sheet of paper or the like material coated and him a Wetting-promoting but not transmission-inhibiting agent based on silica is added. Preferred refinements of the method are further Subclaims specified.

Außerdem wird die genannte Aufgabe erfindungsgemäß durch eine Vorrichtung nach Patentanspruch 19 gelöst.In addition, the stated object is achieved according to the invention a device according to claim 19 solved.

Zweckmäßige Weiterbildungen der Erfindung sind Gegenstand der betreffenden abhängigen Ansprüche.Appropriate developments of the invention are the subject of related dependent claims.

Die Vorrichtung zur Verwendung der erfindungsgemäßen Transferbahn sieht eine erste Lagervorrichtung für das drehbare Halten einer Vorratsrolle aus mit Haftkleber beschichteter Transferbahn, einen Transferabschnitt mit Druck- und Gegendruckwalze sowie eine zweite Lagervorrichtung zur Aufnahme einer Hülse für die Wiederaufwicklung der für eine Rolle zur Aufnahme der Transferbahn und eine Bogen-Zuführvorrichtung vor. Die Lagervorrichtungen können oberhalb oder unterhalb der Bogenzuführvorrichtung angeordnet sein.The device for using the invention Transferbahn sees a first storage device for that rotatable holding a supply roll out with pressure sensitive adhesive coated transfer track, a transfer section with Printing and counter-pressure roller and a second Storage device for receiving a sleeve for the Rewinding for a role to include the Transfer web and a sheet feeder before. The Storage devices can be above or below the Sheet feeder can be arranged.

Wenn die Bogen dem Spalt zwischen Druck- und Andruckwalze geschuppt oder gestaffelt zugeführt werden, erweist es sich als außerordentlich zweckmäßig, wenn die Vorderkante eines nachfolgenden Bogens immer über dem vorhergehenden Bogen liegt, damit sich bei unterschiedlich bedruckten und zusammengetragenen Bogen die Reihenfolge nicht verändert. Es entsteht aber auch eine ununterbrochene Papierbahn und dadurch ist gewährleistet, daß die Transferbahn den Haftkleber vollflächig auf die geschuppten oder gestaffelten Bogen übertragen kann.If the sheet the gap between printing and Pressure roller scaled or fed staggered it turns out to be extremely useful if the leading edge of a subsequent sheet always is above the previous curve so that differently printed and collated sheets the order has not changed. But it also arises is an uninterrupted web of paper and thereby ensures that the transfer web has the pressure sensitive adhesive all over the scaled or staggered sheets can transmit.

Die Staffelung oder Schuppung kann beispielsweise dadurch realisiert sein, daß unter einer Anlageflächen eines Stapels von Bogen eine Bogenentnahmevorrichtung angeordnet ist, der eine Schupp- oder Staffelungsvorrichtung in Bogenförderrichtung nachgeschaltet ist, wobei die Bogen dem Stapel von unten mit hoher Geschwindigkeit einzeln entnommen und in der Schupp-oder Staffelvorrichtung derart abgebremst werden, daß die Bogen mit vorgegebener Höhe geschuppt oder gestaffelt sind. Ferner empfiehlt es sich, das Ausmaß der Abbremsung der Bogen in der Staffelvorrichtung entsprechend einer gewünschten Höhe zu steuern. Ist die Höhe sehr klein, wie das beispielsweise für Haftzettel gewünscht ist, spricht man auch von geschuppten Bogen. Eine große Staffelhöhe eignet sich besonders für die Herstellung von Haftetiketten.The staggering or scaling can for example be realized in that under a contact surfaces of a stack of sheets a sheet removal device is arranged, the a shingling or staggering device is connected downstream in the sheet conveying direction, taking the sheets from the bottom with high Speed taken individually and in the shed or Stagger device are braked so that the scales with a given height or are staggered. It is also recommended to consider the extent the braking of the sheets in the relay device to control according to a desired height. Is the Very small height, such as for sticky notes is desired, one also speaks of scaly arches. A large scale height is particularly suitable for that Manufacture of self-adhesive labels.

Die erwähnte Vorrichtung eröffnet zwei Möglichkeiten:

  • 1.) Die Transferbahn wird mit dem Haftkleber nach unten von der oberen Abrollung S-förmig zwischen Druck und Gegendruckwalze geführt. Dort verbindet sich der Haftkleber vorne mit den geschuppten oder gestaffelten Bogen und "zieht" diese mit zur Wiederaufrollung.
  • 2.) Die Transferbahn wird mit dem Haftkleber nach oben von der unteren Abrollung U-förmig zwischen Druck und Gegendruckwalze geführt. Dort verbindet sich der Haftkleber hinten mit den geschuppten oder gestaffelten Bogen und "schiebt" diese an eine Vacuumwalze. Während die Transferbahn über einen Kantenbrecher schaffkantig nach unten in die Wiederaufrollung gezogen wird, zieht die Vacuumwalze die hinten haftenden Bogen von der Transferbahn ab und legt sie in einer Bogensammelvorrichtung ab.
    • The device mentioned opens up two possibilities:
  • 1.) The transfer web is guided with the pressure sensitive adhesive downwards from the upper roll in an S-shape between the pressure and the counter-pressure roller. There, the pressure sensitive adhesive connects to the scaled or staggered sheets at the front and "pulls" them along for rewinding.
  • 2.) The transfer web is guided with the pressure sensitive adhesive upwards from the lower roll in a U-shape between the pressure and the counter-pressure roller. There the pressure sensitive adhesive connects to the scaled or staggered sheets at the back and "pushes" them onto a vacuum roller. While the transfer web is pulled downwards into the rewinder using an edge breaker, the vacuum roller pulls the backing sheets from the transfer web and deposits them in a sheet collecting device.

    • Weitere bevorzugte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Further preferred configurations of the invention are specified in the subclaims.

    Die Erfindung wird nachstehend anhand der in der beigefügten Zeichnung dargestellten Ausführungsbeispiele im einzelnen beschrieben. The invention is illustrated below in the attached Exemplary embodiments shown in the drawing described.

    Es zeigen:

    Figur 1
    einen Abschnitt einer Transferbahn in perspektivischer Ansicht;
    Figur 2
    eine Seitenansicht einer Bogenschuppung oder -staffelung, auf die Haftkleber übertragen worden ist, in schematischer Darstellung;
    Figur 3
    eine schematische Darstellung einer Vorrichtung zur Herstellung der Transferbahn nach Fig 1;
    Figur 4
    eine schematische Darstellung einer Vorrichtung zur Übertragung des Haftklebers auf die Bogenstaffelung nach Fig. 2; und
    Figur 5
    zwei Varianten der Vorrichtung nach Figur 4.
    Show it:
    Figure 1
    a portion of a transfer path in a perspective view;
    Figure 2
    a side view of a sheet scaling or staggering, to which the pressure sensitive adhesive has been transferred, in a schematic representation;
    Figure 3
    a schematic representation of an apparatus for producing the transfer path according to FIG. 1;
    Figure 4
    a schematic representation of a device for transferring the pressure sensitive adhesive to the sheet grading according to FIG. 2; and
    Figure 5
    two variants of the device according to FIG. 4.

    Die Transferbahn 1 gemäß Fig. 1 besteht aus einer papierartigen Trägerbahn 2. Die Trägerbahn kann beispielsweise aus Kraftpapier mit einem Flächengewicht von etwa 100 g/cm2 oder aus einer nicht dehnbaren Polypropylenfolie mit einem Flächengewicht von etwa 50-60 g/cm2 bestehen.Die bei der Darstellung gemäß Fig. 1 nach oben weisende zu beschichtende Oberfläche der Trägerbahn 2 ist mit einem ersten Trenner 4 vollflächig beschichtet. Auf der gegenüberliegenden Rückseite ist der Träger 2 mit einem zweiten Trenner 3 vollflächig beschichtet. Der erste Trenner und der zweite Trenner sind so gewählt, daß der erste Trenner 4 für den anschließend auf ihn vollflächig aufzubringenden Haftkleber 5 weniger abweisend ist, also eine kleinere Trennkraft hat als der zweite Trenner 3 für diesen Haftkleber 5.1 consists of a paper-like carrier web 2. The carrier web can consist, for example, of kraft paper with a basis weight of approximately 100 g / cm 2 or of a non-stretchable polypropylene film with a basis weight of approximately 50-60 g / cm 2 . The surface of the carrier web 2 which is to be coated and faces upward in the illustration according to FIG. 1 is coated over the entire surface with a first separator 4. On the opposite rear side, the carrier 2 is coated over the entire surface with a second separator 3. The first separator and the second separator are selected such that the first separator 4 is less repellent for the pressure-sensitive adhesive 5 which is subsequently to be applied to it over its entire surface, that is to say it has a lower separation force than the second separator 3 for this pressure-sensitive adhesive 5.

    Wird als Trenner eine Schicht auf Siliconbasis verwendet, kann der Grad der Haftkleberabweisung durch Wahl der Schichtdicke eingestellt werden. So kann der erste Trenner aus einer Siliconschicht von beispielsweise 3 g/cm2 Flächengewicht und der zweite Trenner aus einer Siliconschicht von beispielweise 5 g/cm2 Flächengewicht bestehen. Die Siliconschicht des ersten Trenners 4 wird jedenfalls so dünn gewählt, daß durch sie kleine Trägerbahnbereiche vorstehen können, an denen der Haftkleber sich binden kann. Der erste Trenner 4 kann ein benetzungsförderndes, aber nicht transferhemmendes Mittel auf Siliconbasis, wie etwa Lumiten von der BASF sowie gegebenenfalls ein Vercikungsmittel auf Stärkebasis, wie etwa Colargral von der BASF enthalten. Dagegen wird die Siliconschicht des zweiten Trenners 3 so dick gemacht, daß sie die Trägerbahn 2 für den Haftkleber vollständig abschließt und der Haftkleber daher keine Haftmöglichkeit vorfindet.If a silicone-based layer is used as the separator, the degree of pressure-sensitive adhesive repellency can be adjusted by selecting the layer thickness. For example, the first separator can consist of a silicone layer of, for example, 3 g / cm 2 basis weight and the second separator of a silicone layer of, for example, 5 g / cm 2 basis weight. In any case, the silicone layer of the first separator 4 is chosen to be so thin that it can protrude through small areas of the carrier web to which the pressure-sensitive adhesive can bind. The first separator 4 can contain a silicone-based wetting-promoting but not transfer-inhibiting agent, such as lumites from BASF, and optionally a starch-based caking agent, such as Colargral from BASF. In contrast, the silicone layer of the second separator 3 is made so thick that it completely closes the carrier web 2 for the pressure sensitive adhesive and the pressure sensitive adhesive therefore does not find any possibility of adhesion.

    Als Haftkleber 5 eignet sich ein Perl-Polymerisat, wie es beispielsweise in der US-Patentschrift 3,691,140 oder in den deutschen Patentschriften 28 36 319 oder 24 17 312 beschrieben ist. Verwendbar ist auch ein Permanent-Haftkleber beispielsweise zur Herstellung von Haftetiketten, der eine wesentlich feinere Körnung hat als ein Perl-Polymerisat.A pearl polymer, such as, is suitable as contact adhesive 5 see, for example, U.S. Patent 3,691,140 or in German patents 28 36 319 or 24 17 312 is described. A permanent pressure sensitive adhesive can also be used for example for the production of Adhesive labels that have a much finer grain as a pearl polymer.

    Das erwähnte Perl-Polymerisat liegt vor der Beschichtung als wässrige Dispersion vor. Wenn als Trenner die genannte Siliconschicht benutzt wird, wird zur Verbesserung der Haftung der Disperion auf dem ersten Trenner der Dispersion vor der Beschichtung ein Verdickungsmittel auf Stärkebasis in geeigneter Menge zugesetzt. Ein geeignetes Verdickungsmittel ist beispielsweise das unter der Bezeichnung Colagral im Handel erhältliche Produkt. Ferner kommt in Betracht der Zusatz eines Benetzungsmittels, beispielsweise das unter dem Namen Lumiten erhältliche Mittel der BASF. Durch diese der Dispersion vor der Beschichtung zugegebenen Mittel wird eine ausreichende Benetzung der das Perl-Polymerisat enthaltenden Dispersion auf dem ersten Trenner der Transferbahn gewährleistet.The pearl polymer mentioned is before Coating as an aqueous dispersion. If as Separator the silicone layer mentioned is used to improve the liability of the dispersion on the first separator of the dispersion before coating A suitable amount of starch-based thickener added. A suitable thickener is for example that under the name Colagral in Commercially available product. Also considered the addition of a wetting agent, for example that Funds available from BASF under the name Lumiten. Through this the dispersion before coating added funds will ensure adequate wetting of the the dispersion containing pearl polymer on the guaranteed first separator of the transfer track.

    Die Herstellung der Transferbahn 1 gelingt beispielsweise mit der in Fig. 3 dargestellten Anlage, bei der eine Abrollstation 20, drei Beschichtungsstationen 22, 24, 26 und eine Aufwickelstation 28 hintereinander angeordnet sind. In der Abrollstation 20 wird von einer auf Böcken um eine horizontale Achse drehbar gelagerten Trägerbahnrolle 21 die Trägerbahn 2 kontinuierlich abgewickelt und über Umlenkrollen einem Auftragwerk 23 der ersten Beschichtungsstation 22 zugeführt. In dem ersten Auftragwerk 23 wird auf die Oberseite der Trägerbahn 2 mittels einer in einem Siliconbad umlaufenden Auftragwalze Siliconlösung aufgetragen und anschließend auf die gewünschte Stärke abkalandert. Dem Siliconbad kann gegebenenfalls das Lumiten und eventuell auch das Colargral zugesetzt sein. Die auf der Oberseite mit einer schwachen Siliconschicht beschichtete Trägerbahn 2 wird abstromseitig durch einen ersten Trockner 29 geführt, in welchem das Lösungs- oder Dispergiermittel für das Silicon aus der aufgetragenen Dispersion ausgetrieben wird, so daß auf der den ersten Trockner 29 verlassenden Trägerbahn 2 oberflächig eine dünne Siliconschicht als erster Trenner 4 aufgetragen ist. Die so präparierte Trägerbahn wird in Förderrichtung durch ein zweites Beschichtungswerk 25 geführt, in welchem mittels einer weiteren Auftragwalze auf die Rückseite der Trägerbahn eine weitere Siliconschicht aufgetragen und anschließend auf die gewünschte Schichtdicke eingestellt wird. Abstromseitig wird die Trägerbahn durch einen zweiten Trockner 35 geführt, in welchem das Lösungs- oder Dispergiermittel für die rückseitige Beschichtung der Trägerbahn 2 ausgetrieben wird, so daß die den zweiten Trockner 35 verlassende Trägerbahn 2 auf der Oberseite mit dem ersten Trenner 4 und auf der Rückseite mit dem zweiten Trenner 3 von größerer Schichtdicke versehen ist. Die soweit ausgerüstete Trägerbahn 2 wird abstromseitig hinter dem zweiten Trockner 35 durch ein drittes Beschichtungswerk 27 geführt, in welchem auf den ersten Trenner eine Dispersion des Perl-Polymerisats mittels einer weiteren Auftragwalze aufgetragen wird. Der in dem Trog, in welchem die Auftragwalze umläuft, enthaltenen Perl-Polymerisat-Dispersion ist vorher das erwähnte Verdickungsmittel sowie das Benetzungsmittel in der jeweils gewünschten Menge zugesetzt worden. Die Menge des zuzusetzenden Verdickungsmittels darf nur so groß sein, daß nach der Beschichtung der Haftkleberdispersion auf dem ersten Trenner eine zusammenhängende, im wesentlichen einlagige Perlenschicht aus Haftkleber auf dem ersten Trenner 4 der Trägerbahn 2 erhalten wird. Nach Durchlauf durch eine überschüssige Dispersion von der Beschichtung abstreifende Abstreifstufe wird die Trägerbahn durch einen dritten Trockner 37 geführt, in welchem der gesamte Wasseranteil der Klebstoffbeschichtung sowie des Verdickungsmittels und des Benetzungsmittels ausgetrieben wird. Den dritten Trockner 37 verläßt danach eine Transferbahn 1, die auf der Rückseite mit dem zweiten Trenner hoher Trennkraft und auf der Oberseite mit einem Trenner geringer Trennkraft sowie auf diesem mit Haftkleber in Form eines Perl-Polymersiats versehen ist. Die Transferbahn 1 wird in der Aufrollstation 28 auf eine Vorratstrommel zu einer Rolle 55 aufgewickelt. Nach Trennung der aufgewickelten Transferbahn von der aus dem dritten Trockner 37 nachgelieferten Transferbahn 1 ist die Rolle 55 mit aufgewickelter Transferbahn transportbereit.The production of the transfer track 1 succeeds for example with the system shown in FIG. 3, at one unwind station 20, three coating stations 22, 24, 26 and a winding station 28 are arranged one behind the other. In the unwind station 20 is from one on trestles around a horizontal axis rotatably mounted carrier web roll 21, the carrier web 2 continuously unwound and a pulley Applicator 23 of the first coating station 22 fed. In the first application 23 is on the Top of the carrier web 2 by means of one in one Silicon bath circulating applicator roll silicone solution applied and then to the desired thickness calendered. The silicone bath can, if necessary Lumites and possibly also the Colargral added his. The one on the top with a weak one Carrier web 2 coated with silicone layer led on the downstream side through a first dryer 29, in which the solvent or dispersant for the Silicon expelled from the applied dispersion is, so that on the first dryer 29th leaving carrier web 2 superficially a thin Silicone layer is applied as the first separator 4. The carrier web prepared in this way is in the conveying direction passed through a second coating unit 25, in which by means of another applicator roller on the Another silicone layer on the back of the carrier web applied and then on the desired Layer thickness is set. Downstream is the Carrier web passed through a second dryer 35, in which is the solvent or dispersant for the back coating of the carrier web 2 driven out is so that the leaving the second dryer 35 Carrier web 2 on the top with the first separator 4th and on the back with the second separator 3 from greater layer thickness is provided. So far equipped carrier web 2 is downstream on the downstream second dryer 35 by a third coating unit 27 performed, in which on the first separator Dispersion of the pearl polymer by means of another Application roller is applied. The one in the trough, in which the applicator roller rotates Pearl polymer dispersion is what was previously mentioned Thickener and the wetting agent in the the desired amount has been added. The amount of the thickener to be added may only be as large be that after coating the Pressure sensitive adhesive dispersion on the first separator contiguous, essentially single-ply Pearl layer of pressure sensitive adhesive on the first separator 4 the carrier web 2 is obtained. After run through an excess dispersion from the coating stripping stripping stage is the carrier web led a third dryer 37, in which the total water content of the adhesive coating as well of the thickener and the wetting agent is driven out. Leaves the third dryer 37 then a transfer lane 1, which on the back with the second separator with high separation force and on the Top with a separator low separation force as well on this with pressure sensitive adhesive in the form of a Perl polymer is provided. The transfer line 1 will in the reeling station 28 towards a storage drum a roll 55 wound. After separation of the coiled transfer web from the third Dryer 37 subsequent transfer web 1 is the Roll 55 with the transfer web wound up ready for transport.

    Der auf die Transferbahn 1 aufgebrachte Haftkleber 5 wird in der im ganzen mit 60 bezeichnten Vorichtung gemäß Fig. 4 auf Bogen aus Papier oder dgl. Material aufgetragen. Die Vorrichtung 60 ruht auf einem verfahrbaren Untergestell 61, in welchem die Antriebe für die verschiedenen nachfolgend noch zu beschreibenden Walzen untergebracht sind. Jeder Bogen aus einem Bogenstapel 62, dessen Stirnkante gegen eine Anlagefläche 66 anliegt, wird durch die Vorrichtung 60 in Förderrichtung 63 transportiert und in einen Bogensammler 64 am Ende der Vorrichtung 60 ausgegeben oder auf eine Rolle 65 aufgewickelt.The pressure sensitive adhesive 5 applied to the transfer web 1 is in the device designated as a whole with 60 4 on sheets of paper or the like material applied. The device 60 rests on a movable one Underframe 61, in which the drives for the various rollers to be described below are accommodated. Each sheet from a sheet stack 62, whose end edge against a contact surface 66 is applied by the device 60 in the conveying direction 63 transported and in a sheet collector 64 am End of device 60 issued or on a roll 65 wound up.

    Die Vorrichtung 60 besitzt einen Vereinzlungsabschnitt 72, ein diesem in Förderrichtung 63 nachgestaltete Schuppungs- nnd Staffelungsvorrichtung 74 sowie einen Transferabschnitt 76, der dem Staffelungsabschnitt 74 nachgeschaltet ist.The device 60 has a separating section 72, a replica of this in the conveying direction 63 Scaling and staggering device 74 and one Transfer section 76, the graduation section 74 is connected downstream.

    Der Vereinzlungsabschnitt 72 weist eine Saugwalze 80 auf, die unterhalb der Anlagefläche 66 des Stapels 62 angeordnet ist und mit hoher Umdrehungszahl von beispielsweise 10.000 Umdrehungen pro Stunde (je nach Bogenart) um ihre zur Vorderkante des Stapels 62 parallele Achse drehangetrieben ist. Die Saugwalze 80 ist eine Hohlwalze und weist über ihre Peripherie mehrere gleichverteilte achsparallele Saugschlitze auf. Im Inneren der Hohlwalze sitzt im wesentlichen ortsfest ein Ansaugkanal, der unmittelbar unterhalb des jeweils dem untersten Bogen des Stapels 62 benachbarten Saugschlitzes endet. Wenn der Ansaugkanal an eine Saugpumpe angeschlossen ist und die Saugwalze 80 in Umdrehung versetzt ist (und zwar in der Darstellung nach Fig. 4 in Uhrzeigerrichtung), wird der jeweils unterste Bogen des Stapels 62 von einem unter ihm vorbei laufenden Saugschlitz angesaugt und in Förderrichtung 63 unter dem Stapel 62 abgezogen. Der abgezogene Bogen gelangt unmittelbar hinter der Saugwalze zwischen zwei nicht dargestellte Walzen eines Walzenpaares, von denen eine angetrieben ist und dem abgezogenen Bogen eine relativ hohe Vorschubgeschwindigkeit erteilt, die der Geschwindigkeit entspricht, mit der der Bogen von dem Stapel 62 abgezogen worden ist. Die Bogen des Stapels 62 werden daher von unten nacheinander vom Stapel 62 abgezogen, wobei die Vorderkante 33 eines folgenden Bogens 12 noch geringfügig über der Hinterkante eines vorangehenden Bogens 11 liegt.The separating section 72 has a suction roller 80 on that below the contact surface 66 of the stack 62nd is arranged and with a high number of revolutions, for example 10,000 revolutions per hour (depending on the type of bow) around their parallel to the leading edge of the stack 62 Axis is driven by rotation. The suction roll 80 is a hollow roller and has several on its periphery evenly distributed, axially parallel suction slots. in the The interior of the hollow roller is essentially stationary an intake duct that is immediately below each the bottom sheet of the stack 62 adjacent Suction slot ends. If the suction channel to a suction pump is connected and the suction roll 80 in rotation is offset (in the representation after Fig. 4 in the clockwise direction), the bottom is Sheet of stack 62 passed by one below it running suction slit sucked in and in the conveying direction 63 subtracted from the stack 62. The arch removed arrives immediately behind the suction roller between two rolls, not shown, of a pair of rolls, of which one is driven and one of the withdrawn sheets Relatively high feed rate given by the Corresponds to the speed at which the bow of the Stack 62 has been withdrawn. The sheets of the stack 62 are therefore successively from the bottom of the stack 62 deducted, the leading edge 33 of a following Sheet 12 still slightly above the rear edge of one preceding sheet 11 lies.

    Die Schuppungs- und Staffelungsvorrichtung 74 weist zwei in Vorschubrichtung 63 beabstandete Walzenpaare 82, 84 auf, von denen jeweils eine Walze angetrieben ist. Die Geschwindigkeit, mit der die Walzen der Walzenpaare 82, 84 angetrieben sind, ist wesentlich kleiner als die Abzugsgeschwindigkeit eines Bogens vom Stapel 62. Daher gleitet ein nachfolgender Bogen weiter über die Oberseite eines in Förderrichtung 23 vorangehenden Bogens, und zwar in solchem Ausmaß, daß zwischen der Vorderkante 31 eines vorangehenden Bogens 11 und der Vorderkante 33 eines nächst nachfolgenden, fast ganz auf ihm liegenden Bogens 12 ein konstanter Abschnitt d, Schupp- oder Staffelhöhe genannt, verbleibt (Fig. 2). Durch Abbremsen der von der Saugwalze 80 vom Stapel 62 abgezogenen Bogen in der Staffelungsvorrichtung 74 wird daher eine Staffelung oder Schuppung der Bogen erreicht, die schematisch in Fig. 2 dargestellt ist. Dieser gestaffelte oder geschuppte Bogenstrom 10 aus aufeinander folgenden, weitgehend übereinander liegenden Bogen, wie in Fig. 2 anhand der Bogen 11, 12, 13, 14, 15, 16, 17, 18, 19 dargestellt, zeichnet sich dadurch aus, daß zwischen den Vorderkanten in Förderrichtung 23 aufeinander folgender Bogen der erwähnte Abstand d bleibt. Dieser Abstand kann in einem konkreten Ausführungsbeispiel 1,5 bis 2,0 cm betragen (= Schuppung). Durch Erhöhung der Antriebsgeschwindigkeit der angetriebenen Walzen des Walzenpaares 82, 84 kann das Maß der Schuppung oder Staffelung, d.h. die Größe von d nach Wunsch vergrößert werden (= Staffelung).The scaling and staggering device 74 has two pairs of rollers spaced apart in the feed direction 63 82, 84, each of which is driven by a roller is. The speed at which the rollers of the Roller pairs 82, 84 are driven is essential less than the take-off speed of a sheet from Stack 62. A subsequent sheet therefore slides on over the top of a in the conveying direction 23 previous sheet, to the extent that between the leading edge 31 of a preceding sheet 11 and the leading edge 33 of a next succeeding almost completely lying on it 12 a constant Section d, called scale or scale height, remains (Fig. 2). By braking the from the Suction roller 80 from the stack 62 withdrawn sheet in the Staging device 74 therefore becomes a staggering or desquamation of the arch, which is shown schematically in Fig. 2 is shown. This staggered or scaled Arc stream 10 from successive, largely sheets lying one above the other, as shown in FIG. 2 the sheets 11, 12, 13, 14, 15, 16, 17, 18, 19 are shown, is characterized in that between the Leading edges in the conveying direction 23 in succession Arc the mentioned distance d remains. This distance can be 1.5 to 2.0 in a specific exemplary embodiment cm (= scaling). By increasing the Driving speed of the driven rollers of the Roller pair 82, 84 can be the degree of shingling or Staggering, i.e. the size of d enlarged as desired be (= graduation).

    Die geschuppten oder gestaffelten Bogen gelangen nach der Vorrichtung 74 zwischen eine Druckwalze 86 und eine untere in Richtung auf die Druckwalze elastisch gelagerte Gegendruckwalze 88 des Transferabschnittes 76, wobei eine von beiden angetrieben ist. Die Druckwalze 86 und die Gegendruckwalze 88 liegen im Weg der Transferbahn 1 durch díe Vorrichtung 60. Ferner erhebt sich über den Durchlaufweg der Bogen durch die Vorichtung 60 ein massiver Ständer 71, aus dem in Förderrichtung 63 beabstandet zwei Dorne 73 und 75 vorstehen. Auf dem vordersten Dorn 73 sitzt eine Rolle 55, welche aus der Vorrichtung gemäß Fig. 3 erzeugt worden ist und eine aufgewickelte, mit Haftkleber 5 beschichtete Transferbahn 1 enthält. Wenn die Gegendruckwalze 88 aus dem Transferabschnitt 76 in Richtung des Pfeiles f 88 angetrieben ist, dreht sich die Rolle 55 in Richtung des Pfeiles f 55, weil das Transferband nach Abziehen von der Rolle 55 über eine Umlenkwalze 77 und von dieser in den Spalt zwischen der Druckwalze 86 und der Gegendruckwalze 88 geführt ist. Oberhalb der Druckwalze 86 ist eine weitere Umlenkwalze 87 angeordnet und in Vorschubrichtung 63 hinter der Umlenkwalze 87 sitzt eine Trennleiste 89, die sich dicht oberhalb des Bogenstroms quer zur Vorschubrichtung 63 erstreckt. Die aus dem Spalt zwischen Druckwalze 86 und Gegendruckwalze 88 kommende Transferbahn 1 wird um die Trennleiste 89 und von dieser zu der Umlenkwalze 87 geführt, so daß die Transferbahn unter Bildung eines stumpfen Winkels zur Vorschubrichtung 63 um die Umlenkwalze 87 umläuft und von dieser auf die mit der Gegendruckwalze 88 syncron drehangetriebene, auf dem Dorn 75 sitzende Rolle 65 aufgewickelt wird.The scaled or staggered sheets go to the device 74 between a pressure roller 86 and a lower elastic towards the pressure roller mounted counter-pressure roller 88 of the transfer section 76, one of which is driven. The Pressure roller 86 and backing roller 88 are in the way transfer lane 1 through device 60. Furthermore rises above the path of the arch through the Device 60 is a solid stand 71, from which in Conveying direction 63 spaces two mandrels 73 and 75 protrude. A roller sits on the foremost mandrel 73 55, which is generated from the device according to FIG. 3 and has been wound up with adhesive 5 contains coated transfer sheet 1. If the Back pressure roller 88 from transfer section 76 in Direction of arrow f 88 is driven, rotates the roller 55 in the direction of arrow f 55 because that Transfer ribbon after peeling off the roll 55 over a Deflection roller 77 and from this into the gap between the Printing roller 86 and the counter-pressure roller 88 is guided. Another deflection roller is located above the pressure roller 86 87 arranged and in the feed direction 63 behind the Deflection roller 87 sits a separation bar 89, which is just above the arc stream across Feed direction 63 extends. The one from the gap between Compression roller 86 and counter-pressure roller 88 coming Transfer path 1 is around the dividing bar 89 and from this led to the deflection roller 87 so that the transfer path forming an obtuse angle to Feed direction 63 revolves around the deflection roller 87 and from this to that with the counter-pressure roller 88 syncron rotary roller 65 seated on mandrel 75 is wound up.

    Die gestaffelten Bogen laufen in den Spalt zwischen der Druckwalze 86 bzw. dem Haftkleber 5 der Transferbahn 1 und der Gegendruckwalze 88 ein und gelangen dort unter Druck in Kontakt mit der Außenseite des Haftklebers 5. Da die Oberseite der Bogen des Stapel 62 wenigstens in einer von der Vorderkante der Bogen ausgehenden Breite d mit einem Haftvermittler beschichtet sind, wird der Haftkleber 5 beim gemeinschaftlichen Duchlauf des Transferbandes 1 und der gestaffelten Bogen zwischen der oberen Druckwalze 86 und der Gegendruckwalze 88 auf den freibleibenden, daß heißt vom nachfolgenden Bogen nicht abgedeckten Teil der Oberseite eines Bogens, also auf einen parallel zur Vorderkante 31 des vordersten Bogens 11 liegenden Streifen der Breite d übertragen und haftet dort. Bei Durchlauf der gestaffelten Bogen zwischen den Walzen 86 und 88 wird also auf die jeweils vordersten Bogenabschnitte der Breite d eine zusammenhängende Haftkleberlage 5 vom ersten Trenner 4 der Transferbahn 1 übertragen.The staggered sheets run into the gap between the Printing roller 86 or the pressure sensitive adhesive 5 of the transfer web 1 and the counter-pressure roller 88 and get there Pressure in contact with the outside of the pressure sensitive adhesive 5. Since the top of the sheets of stack 62 is at least in one starting from the leading edge of the sheets Width d are coated with an adhesion promoter, becomes the pressure sensitive adhesive 5 during the joint run the transfer belt 1 and the staggered sheets between the upper pressure roller 86 and the Counter-pressure roller 88 on the free, that is part of the. not covered by the following sheet Top of an arch, i.e. parallel to one Front edge 31 of the foremost sheet 11 lying Strips of width d transfer and stick there. At Passing the staggered sheets between rollers 86 and 88 will be on the forefront Arch sections of width d a contiguous Pressure sensitive adhesive layer 5 from the first separator 4 of the transfer path 1 transferred.

    Der weitere Weg der auf diese Weise haftkleberbeschichteten, gestaffelten oder geschuppten (je nach der Größe von d) Bogen durch die Vorrichtung 60 führt dann von dem Transferabschnitt 76 zu dem Bogensammler 64, nachdem die Staffelung der Bogen aufgehoben und anschließend die Bogen übereinander wie dargestellt als Stapel abgelegt werden. Selbverständlich ist die Rückseite der Bogen mit einer Ablösehilfe (Release) beschichtet, so daß die auf ihrer Oberseite mit Haftkleber versehenen Bogen nicht aneinander haften. Die vom Haftkleber befreite Transferbahn läuft von der Umlenkwalze 87 auf die Rolle 65.The further path of the pressure-sensitive adhesive coated in this way, staggered or scaled (depending on the size von d) Arch through device 60 then leads from the transfer section 76 to the sheet collector 64, after the graduation the sheets were canceled and then the sheets one above the other as shown as Stacked. It goes without saying Back of the sheets with a release aid coated so that the on their top with Do not adhere the pressure sensitive adhesive sheets to each other. The transfer path freed from the pressure sensitive adhesive runs from the Deflection roller 87 on the roller 65.

    Wird dagegen die Transferbahn unter spitzem Winkel zur Vorschubrichtung 63 abgezogen, werden die am Haftkleber haftenden geschuppten oder gestaffelten Bogen von der noch mit Haftkleber beschichteten Transferbahn mitgenommen und über die weitere Umlenkwalze 87 gelenkt und mit auf die Rolle 65 aufgewickelt. Dazu wird die Trennleiste 89 in Fig. 4 entfernt und die Walze 87 wesentlich weiter nach rechts versetzt.If, on the other hand, the transfer path is turned at an acute angle Feed direction 63 deducted, the on the pressure sensitive adhesive adhering shingled or staggered sheets from the transfer sheet still coated with pressure sensitive adhesive taken and steered over the further deflection roller 87 and wound up on the roll 65. For this, the Separation strip 89 removed in FIG. 4 and the roller 87 shifted much further to the right.

    Wenn die auf der Rolle 55 aufgewickelte Länge des Transferbands verbraucht ist, findet sich das Transferband 1 ohne Haftkleber vollständig auf der Rolle 65. Es kann dann erneut wieder als Rolle 50 der vorstehend im Zusammenhang mit Fig. 3 beschriebenen Abrollstation 20 zugeführt und wieder mit Haftkleber beschichtet werden.If the length of the Transfer ribbon is used up, the transfer ribbon is found 1 without pressure sensitive adhesive completely on the roll 65. It can then again as role 50 of the above in Relation to the unwinding station 20 described in FIG. 3 fed and coated again with pressure sensitive adhesive.

    Von den beiden in Figur 5 dargestellten Varianten der Vorrichtung nach Figur 4 betrifft die erste Variante eine Ausführungsform, bei der die das Transferband 1 tragenden Rollen 55 und 65 in dem Untergestell 61 untergebracht sind. Auf der Rolle 55a ist das Transferband 1a mit Haftkleberbeschichtung 5a auf eine Hülse 73a aufgewickelt, die drehbar auf einem mit dem tragenden Gerüst des Unterbaus 61 fest verbundenen Träger 71a befestigt ist. Die Transferbahn 1a läuft über die gemäß Pfeil f 88 angetriebene Gegendruckwalze 88 und von dieser auf eine Hülse 75a, die drehbar an einem weiteren von dem Unterbau 61 getragenen Träger 72a befestigt ist.Of the two variants shown in FIG The device according to FIG. 4 relates to the first variant an embodiment in which the transfer belt 1 supporting rollers 55 and 65 in the base 61 are accommodated. On roll 55a it is Transfer belt 1a with pressure-sensitive adhesive coating 5a on a Coiled sleeve 73a, which rotates on one with the supporting framework of the substructure 61 firmly connected Carrier 71a is attached. Transfer train 1a is running via the counter pressure roller driven according to arrow f 88 88 and from this to a sleeve 75a which is rotatable another support carried by the substructure 61 72a is attached.

    In diesem Ausführungsbeispiel sind die einzelnen Bogen des Bogenstapels 62 bei der Darstellung nach Figur 5 auf der Unterseite mit Haftvermittler oder Haftgrund (Primer) und auf der Oberseite mit einer Ablösehilfe (Release) beschichtet. Die in Figur 2 dargestellte Schuppung durch die Schuppungs- und Staffelungsvorrichtung 74 bleibt erhalten, wobei von jedem Bogen der hintere untere Abschnitt der Breite d zum Auftrag von Haftkleber aus der Transferbahn 1a freiliegt.In this embodiment, the individual sheets of the sheet stack 62 in the illustration according to FIG. 5 on the bottom with adhesion promoter or primer (Primer) and on the top with a removal aid (Release) coated. The one shown in Figure 2 Flaking through the flaking and Graduation device 74 is retained, whereby from each arch the rear lower section of width d for applying pressure sensitive adhesive from transfer line 1a exposed.

    Die Transferbahn 1a wird durch die Gegendruckwalze 88 zusammen mit den geschuppten oder gestaffelten Bogen durch den Spalt zwischen der Gegendruckwalze 88 und der Andruckwalze 86 gezogen, wobei die Transferbahn 1a von unten gegen den Bogenstrom gepreßt wird. Der die beiden Walzen verlassende Bogenstrom wird durch die hier unterhalb deselben angeordnete Trennleiste 89a von dem Transferband 1a getrennt und von einer abstromseitigen Saugwalze 90, die mit einer unter ihr angeordneten mitlaufenden Walze 91 einen weiteren Walzenspalt bildet, ergriffen. Ein endloser oberer Gurt 92, bestehend aus mehreren parallel laufenden Bändern, läuft gemäß Pfeil 93 um die Saugwalze 90 sowie eine abstromseitig zu dieser angeordnete Walze 95 um, und ein unterer Gurt 96, der ebenfalls mehrere parallel laufende Bänder aufweist, läuft gemäß Pfeil 97 um die Walze 91 sowie eine abstromseitig zu dieser unter der Walze 95 angeordnete Walze 98 um. Der Abstand der Saugwalze 90 mit zugeordneter Walze 91 zur Trennleiste 89a ist verstellbar und abhängig von der Zuschnittlänge. Die Saugwalze 90 sowie die weiteren Walzen 91, 95, 98 drehen so schnell, daß die geschuppten oder gestaffelten Bogen wieder vereinzelt werden. Die auf diese Weise längs des Vorschubweges zwischen dem Saugwalzenpaar 90, 91 und Walzenpaar 96,98 vereinzelten Bogen werden in den Bogensammler 64 ausgegeben und gestapelt. In diesem Bogensammler befinden sich übereinander die einzelnen Bogen, deren in Förderrichtung 63 hintere untere Kante in der Breite d (bis auf den untersten Bogen des Stapels) mit Haftkleber beschichtet ist.The transfer path 1a is moved by the counter pressure roller 88 along with the scaled or staggered sheets through the gap between the platen roller 88 and the Pinch roller 86 is pulled, the transfer path 1a of is pressed below against the arc stream. The one Rolling leaving arc stream is through here separating strip 89a arranged below the same Transfer belt 1a separated and from a downstream Suction roll 90, which is arranged with one below it moving roller 91 a further nip forms, seized. An endless top strap 92, consisting of several bands running in parallel, runs according to arrow 93 around the suction roll 90 and one downstream of this arranged roller 95 um, and a lower strap 96 which is also several in parallel has running belts, runs according to arrow 97 around the Roller 91 and a downstream side to this under the Roller 95 arranged roller 98 um. The distance of the Suction roller 90 with an associated roller 91 to the separating strip 89a is adjustable and depends on the Cutting length. The suction roll 90 and the others Rollers 91, 95, 98 rotate so quickly that the Scaled or staggered sheets isolated again become. That way along the feed path between the suction roller pair 90, 91 and roller pair 96.98 Scattered sheets are in the sheet collector 64 issued and stacked. In this bow collector the individual sheets, whose in the conveying direction 63 rear lower edge in width d (except for the bottom sheet of the stack) with Pressure sensitive adhesive is coated.

    Die zweite Variante der Vorrichtung nach Figur 5 sieht als weiter Ausführungsform der Erfindung einen verkleinerten, sich über die Vorrichtung 60 erhebenden Ständer 71b vor, auf welchem die Rolle 55 wie bei dem in Figur 4 dargestellten Ausführungsbeispiel in Rechtung des Pfeiles f 55 drehbar gehalten ist. Die Gegendruckwalze 88 zieht das mit Haftkleber 5 beschichtete Transferband 1 zusammen mit den gemäß Figur 2 geschuppten oder gestaffelten Bogen in den Walzenspalt zwischen der Gegendruckwalze 88 und der Andruckwalze 86 ein, wobei die Transferbahn 1 von oben auf den Bogenstrom gepreßt wird, und überträgt der Haftkleber auf die einzelnen Bogen, die bei diesem Ausführungsbeispiel wieder auf der Oberseite mit Haftvermittler (Primer) und auf der Unterseite mit einer Ablösehilfe (Release) beschichtet sind. Auf der Abstromseite des Walzenspaltes zwischen den Walzen 86, 88 läuft das Transferband 1 auf die Hülse 75a, die im Untergestell 61 der Vorrichtung drehbar gehalten ist. Hierbei werden die geschuppten oder gestaffelten Bogen von der Transferbahn 1 mitgenommen und mit der Transferbahn zur Bildung der Rolle 65a aufgewickelt.The second variant of the device according to FIG. 5 looks as a further embodiment of the invention reduced, rising above the device 60 Stand 71b on which the roller 55 as in the 4 shown in FIG Right of arrow f 55 is held rotatable. The Counter-pressure roller 88 pulls this with pressure-sensitive adhesive 5 coated transfer belt 1 together with the according Figure 2 scaled or staggered sheets in the Nip between the counter-pressure roller 88 and the Pressure roller 86, with the transfer path 1 from above is pressed onto the arc stream, and transmits the Pressure sensitive adhesive on the individual sheets included in this Embodiment again on the top with Adhesion promoter (primer) and on the bottom with a release aid are coated. On the Downstream side of the nip between the rollers 86, 88 runs the transfer belt 1 on the sleeve 75a, which in Underframe 61 of the device is rotatably held. Here the scaled or staggered sheets taken from the transfer line 1 and with the Transfer web wound up to form the roll 65a.

    Im Unterschied zu der Ausführungsform der Erfindung, bei der die Hülse 75a wie die Hülse 75 oberhalb des Bogenstroms gehalten ist, wird das Transferband bei dem zuletzt erwähnten Ausführungsbeispiel mit den geschuppten oder gestaffelten Bogen so auf die Hülse 75a aufgewickelt, daß die Bogen außen liegen. Selbstverständlich können in dieser Ausführungsform der Erfindung die die Saugwalze und die zugehörigen weiteren Walzen umfassende Vereinzelungsstation sowie der Bogensammler 64 und die Trennleiste 89a entfallen.In contrast to the embodiment of the invention, in which the sleeve 75a as the sleeve 75 above the Arc current is held, the transfer belt at the last-mentioned embodiment with the scaled or staggered sheets on the sleeve 75a wound that the sheets are on the outside. Of course, in this embodiment, the Invention which the suction roll and the associated other rollers comprehensive separation station as well the sheet collector 64 and the separating strip 89a are eliminated.

    Claims (22)

    1. Transfer web (2), whose upper side is coated with a first releasing agent (4) and whose bottom side is coated with a second releasing agent (3), whereby the second releasing agent (3) exhibits a significantly greater peel force than the first releasing agent (4), characterized in that the first releasing agent (4) is coated with self-adhering pressure sensitive adhesive (5) in the shape of an aqueous dispersion of a pearl polymerizate for transferring the pressure sensitive adhesive onto sheets of paper and containing a silica-based agent which promotes wetting but does not impede transfer.
    2. Transfer web according to claim 1 characterized in that the dispersion contains a starch-based thickening agent.
    3. Transfer web according to one of the preceding claims, characterized in that the dispersion contains a wetting agent such as Lumiten.
    4. Transfer web according to one of the preceding claims, characterized in that the entire surface of the first releasing agent (4) is coated with the pressure sensitive adhesive (5).
    5. Transfer web according to one of the claims 1 to 3, characterized in that the first releasing agent (4) is coated with the pressure sensitive adhesive (5) in lengthwise strips.
    6. Transfer web according to one of the claims 1 to 3, characterized in that the first releasing agent (4) is printed with a pressure sensitive adhesive (5) in areas that lie crosswise and lengthwise.
    7. Transfer web, according to one of the claims 1 to 6, characterized in that the pressure sensitive adhesive bonds permanently.
    8. Transfer web according to one of the preceding claims, characterized in that it is wound on a roll (55).
    9. Transfer web according to one of the preceding claims, characterized in that upon contact of the pressure sensitive adhesive (5) with the sheets (11...19) the transfer web is preferably wound, together with the sheets, sticking to it, for further processing.
    10. Transfer web according to one of the preceding claims, characterized in that, following transfer of the pressure sensitive adhesive (5) onto a sheet, the transfer web is rewound for another coating of the pressure sensitive adhesive.
    11. Process for the manufacture of a transfer web according to one of the preceding claims, characterized in that its upper side is coated with a first releasing agent (4) and its bottom side with a second releasing agent (3), whereby the second releasing agent (3) exhibits a significantly greater peel force than the first releasing agent (4) and that the first releasing agent (4) is coated with self-adhering pressure sensitive adhesive in the shape of an aqueous dispersion of a pearl polymerizate for transferring the pressure sensitive adhesive onto sheets of paper and that a silica-based agent promoting the wetting but not impeding transfer is added to the first releasing agent.
    12. Process according to claim 11, characterized in that a starch-based thickening agent is added to the dispersion prior to coating.
    13. Process according to one of the claims 11 or 12, characterized in that the pressure sensitive adhesive is applied on the first releasing agent by means of an engraving cylinder, knife-over-roll or by means of slotted nozzle, centrifuge or by spraying.
    14. Process according to one of the claims 11 to 13, characterized in that the pressure sensitive adhesive is applied by screen printing or embossing:
    15. Process according to one of the claims 11 to 14, characterized in that the transfer web is dried after the coating.
    16. Process according to one of the claims 11 to 15, characterized in that the transfer web (1), coated with pressure sensitive adhesive (5), is wound on a roll (55).
    17. Process according to one of the claims 11 to 16, characterized in that, following transfer of the pressure sensitive adhesive (5) to the sheets (11. ..19), the transfer web is preferably wound, together with the sheets, sticking to it, for further processing.
    18. Process according to one of the claims 11 to 16, characterized in that, following transfer of the pressure sensitive adhesive (5) onto a sheet, the transfer web is rewound for another coating of the pressure sensitive adhesive.
    19. Device for the use of a transfer web according to one of the claims 1 to 10, characterized by a first storage device (71, 73) for the rotatable holding of a supply roll (55), comprising the transfer web (1), coated with pressure sensitive adhesive (5); by a transfer section (76) with deflecting roller (86) for the transfer web and a feed roller (88), cooperating with the deflecting roller (86); and by a second holding device (71, 75) for a roll (65) for receiving the transfer web (1); and by a feeder (72, 74) for feeding sheets, whose upper side is coated with an adhesion promoter, to the slit between the deflecting roller (86) and the feed roller (88).
    20. Device according to claim 19, characterized in that the shingled or staggered sheets are fed to the slit, whereby the leading edge (33) of a following sheet (12) lies over the preceding sheet (11).
    21. Device according to one of the claims 19 or 20, characterized in that under the contact surface (66) of a stack (62) of sheets a sheet removing device (80), is arranged in such a way that the sheets are removed one sheet at a time from the bottom of the stack at a high rate and decelerated in such a manner in the shingling or staggering device (74), which is following in the feed direction, that the sheets are shingled or staggered at a predetermined height (d).
    22. Device according to one of the claims 19 to 21, characterized in that a deflecting strip (89) is arranged in the feed direction (63) of the sheets behind or in place of the deflecting roller (86).
    EP96942282A 1995-11-30 1996-11-29 Transfer belt for applying adhesive and a process for manufacturing same Expired - Lifetime EP0863957B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE19544636 1995-11-30
    DE19544636A DE19544636A1 (en) 1995-11-30 1995-11-30 Transfer web for applying pressure sensitive adhesives and process for their production
    PCT/EP1996/005306 WO1997020006A2 (en) 1995-11-30 1996-11-29 Transfer belt for applying adhesive and a process for manufacturing same

    Publications (2)

    Publication Number Publication Date
    EP0863957A2 EP0863957A2 (en) 1998-09-16
    EP0863957B1 true EP0863957B1 (en) 2001-08-01

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    EP (1) EP0863957B1 (en)
    AT (1) ATE203692T1 (en)
    AU (1) AU1139397A (en)
    DE (2) DE19544636A1 (en)
    WO (1) WO1997020006A2 (en)

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    US8281737B2 (en) 2003-03-10 2012-10-09 Boston Scientific Scimed, Inc. Coated medical device and method for manufacturing the same
    WO2006094835A1 (en) * 2005-03-11 2006-09-14 Ryco Book Protection Services Limited Method and apparatus for indirectly coating a substrate with a hot flowable viscous adhesive

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    DE59607429D1 (en) 2001-09-06
    WO1997020006A3 (en) 1997-07-03
    US5985439A (en) 1999-11-16
    EP0863957A2 (en) 1998-09-16
    WO1997020006A2 (en) 1997-06-05
    DE19544636A1 (en) 1997-06-05
    AU1139397A (en) 1997-06-19
    ATE203692T1 (en) 2001-08-15

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