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EP0140197B1 - Cover for paper sheets - Google Patents

Cover for paper sheets Download PDF

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Publication number
EP0140197B1
EP0140197B1 EP84111791A EP84111791A EP0140197B1 EP 0140197 B1 EP0140197 B1 EP 0140197B1 EP 84111791 A EP84111791 A EP 84111791A EP 84111791 A EP84111791 A EP 84111791A EP 0140197 B1 EP0140197 B1 EP 0140197B1
Authority
EP
European Patent Office
Prior art keywords
cover
plastic sheet
paper sheets
melt adhesive
spine
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
EP84111791A
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German (de)
French (fr)
Other versions
EP0140197A3 (en
EP0140197A2 (en
Inventor
Peter Lázár
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LAZAR, PETER
Original Assignee
Individual
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Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6758433&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0140197(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT84111791T priority Critical patent/ATE52061T1/en
Publication of EP0140197A2 publication Critical patent/EP0140197A2/en
Publication of EP0140197A3 publication Critical patent/EP0140197A3/en
Application granted granted Critical
Publication of EP0140197B1 publication Critical patent/EP0140197B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D3/00—Book covers
    • B42D3/002—Covers or strips provided with adhesive for binding

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  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)

Abstract

1. Cover for paper sheets with a spine and, adjoining the same on both sides by means of folds (5, 9), front and rear covers (2, 4), of which at least the front cover consists of a front tab (6), which integrally adjoins the spine, and of a transparent plastic sheet, which is fastened to the inside of the front tab by means of an adhesive layer, and with a thermoplastic adhesive (10) [sic], which is applied to the inside of the spine, for fastening the paper sheets, characterized in that the adhesive layer (8) consists of a thermoplastic adhesive, the activation temperature of which is matched to the material of the plastic sheet (7) or of the plastic-sheets in such a manner that after the plastic sheet (7) has been placed on the thermoplastic adhesive, which has been heated to activation temperature, no lasting optically visible changes remain.

Description

Die Erfindung betrifft einen Einband für Papierblätter mit einem Einbandrücken und über Falze daran beidseitig anschließenden Front und Rükkeneinbanddecken, von denen zumindest die Fronteinbanddecke aus einem an dem Einbandrücken einstückig anschließenden Frontlappen und einem an der Innenseite des Frontlappens mittels einer Klebstoffschicht befestigten, transparenten Kunststoffblatt besteht, sowie mit einem auf der Innenseite des Einbandrückens aufgebrachten Schmelzkleber für die Befestigung der Papierblätter.The invention relates to a cover for paper sheets with a cover spine and folds attached to it on both sides of the front and back cover covers, of which at least the front cover cover consists of a front flap integrally connected to the cover spine and a transparent plastic sheet attached to the inside of the front flap by means of an adhesive layer, and with a hot-melt adhesive applied to the inside of the cover for attaching the paper sheets.

Ein solcher Einband ist in der DE-PS 25 28 225 beschrieben. Dieser Einband weist einen Einbandrücken auf, der auf seiner Innenseite mit einem Schmelzkleberstreifen versehen ist. An der einen Längsseite schließt sich über eine Falz eine Rückeneinbanddecke und an der anderen Längsseite ebenfalls über eine falz - ein frontlappen an. An der Innenseite des Frontlappens ist eine Fronteinbanddecke aus transparentem Kunststoff mittels eines Streifens eines druckempfindlichen Haftklebers befestigt, und zwar mit einem Rand im Abstand von dem Schmelzkleberstreifen.Such a cover is described in DE-PS 25 28 225. This cover has a cover spine, which is provided on the inside with a hot melt adhesive strip. On one long side a back cover is connected by a fold and on the other long side also by a fold - a front flap. A front cover blanket made of transparent plastic is attached to the inside of the front flap by means of a strip of pressure-sensitive pressure-sensitive adhesive, with an edge at a distance from the hot-melt adhesive strip.

Dabei ist unter einem Schmelzkleber ein Klebstoff zu verstehen, der bei Raumtemperatur fest ist und nicht klebt, jedoch bei Zufuhr von Hitze schmilzt und dabei eine Oberflächenhaftung entwickelt. Mit dem anschliessenden Erkalten erstarrt der Klebstoff wieder und bewirkt dann eine feste Haftung zwischen den Flächen, die von ihm benetzt wurden. Die Temperatur, bei der der Schmelzkleber aufweicht, wird auch Aktivierungstemperatur genannt. Je nach Zusammensetzung des Schmelzklebersliegen die Aktivierungstemperaturen zwischen 70 und 200°C.A hot melt adhesive is an adhesive that is solid at room temperature and does not stick, but melts when heat is applied and develops a surface adhesion. With the subsequent cooling, the adhesive solidifies again and then causes firm adhesion between the surfaces that it has wetted. The temperature at which the hot melt adhesive softens is also called the activation temperature. Depending on the composition of the hot melt adhesive, the activation temperatures are between 70 and 200 ° C.

Unter einem druckempfindlichen Haftkleber sind Klebstoffe zu verstehen, die - auf eine Fläche aufgetragen - schon bei leichtem Andruck einer anderen Fläche auf jene eine spontane Haftwirkung entfalten (Ullmann, Enzyklopädie der technischen Chemie, 4. Auflage, Band 14, Seiten 236 und 238).A pressure-sensitive pressure sensitive adhesive is to be understood as adhesives that - applied to one surface - develop a spontaneous adhesive effect even when lightly pressing on another surface (Ullmann, Encyclopedia of Technical Chemistry, 4th edition, volume 14, pages 236 and 238).

Das Einbinden von Papierblättern in einem solchen Einband geschieht dadurch, daß die Papierblätter zwischen front- und Einbanddecke mit ihren Längskanten auf den Schmelzkleberstreifen aufgelegt und dann der Einbandrücken mit seiner Außenseite auf eine Heizplatte aufgelegt wird. Diese Heizplatte erhitzt den Schmelzkleber auf seine Aktivierungstemperatur, so daß die Längskanten der Papierblätter mit dem dann flüssigen Schmelzkleber benetzt werden. Nach dem Erkalten sind die Papierblätter fest mit dem Einband verbunden.The binding of paper sheets in such a cover occurs in that the paper sheets are placed with their longitudinal edges on the hot-melt adhesive strips between the front and cover covers and then the back of the cover is placed with its outside on a heating plate. This heating plate heats the hot melt adhesive to its activation temperature, so that the longitudinal edges of the paper sheets are wetted with the then hot melt adhesive. After cooling, the paper sheets are firmly attached to the cover.

Mit der Ausbildung des Einbandes nach der DE-PS 25 28 225 sollte erreicht werden, daß das transparente Kunststoffblatt trotz Verwendung eines erst bei höheren Temperaturen aktivierbaren Kunststoffmaterials während des vorbeschriebenen Einbindevorgangs nicht beschädigt wird und so billiges Material hierfür verwendet werden kann, das bei direkter Beaufschlagung mit der Aktivierungstemeratur optisch sichtbare Schäden erleiden würde. In der DE-PS 25 28 225 wird dies darauf zurückgeführt, daß zwischen innerem Rand des Kunststoffblattes und dem Schmelzkleberstreifen ein Abstand vorgesehen ist und daß der Haftkleber als Wärmeisolierung wirkt.With the design of the cover according to DE-PS 25 28 225 should be achieved that the transparent plastic sheet is not damaged despite the use of a plastic material that can only be activated at higher temperatures during the above-described binding process, and so cheap material can be used for this, which can be subjected to direct loading would suffer optically visible damage with the activation temperature. In DE-PS 25 28 225 this is attributed to the fact that a distance is provided between the inner edge of the plastic sheet and the hot-melt adhesive strip and that the pressure-sensitive adhesive acts as thermal insulation.

Nachteilig bei dieser Lösung ist, daß zwei Arten von Klebstoffen vorgehalten und verarbeitet werden müssen, nämlich einmal ein Schmelzkleber und einmal ein Haftkleber. Dies kompliziert zum einen die Lagerhaltung. Zum anderen ist das Aufbringen des Haftklebers und das Verkleben der transparenten Frontdecke sehr arbeitsaufwendig und kompliziert. Schließlich ist die Haftwirkung dieses Klebstoffs nicht befriedigend.The disadvantage of this solution is that two types of adhesive have to be kept in stock and processed, namely a hot melt adhesive and a pressure sensitive adhesive. On the one hand, this complicates the storage. On the other hand, applying the pressure sensitive adhesive and gluing the transparent front cover is very labor intensive and complicated. After all, the adhesive effect of this adhesive is unsatisfactory.

Der Erfindung liegt demnach die Aufgabe zugrunde, bei einem Einband der eingangs genannten Art eine Befestigung für transparente Kunststoffblätter zu finden, die einfacher herzustellen ist und eine bessere Haftung hat.The invention is therefore based on the object to find a cover for transparent plastic sheets in a cover of the type mentioned, which is easier to manufacture and has better adhesion.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Klebstoffschicht aus einem Schmelzkleber besteht, dessen Aktivierungstemperatur auf das Material des Kunststoffblattes bzw. der Kunststoffblätter so abgestimmt ist, daß nach dem Auflegen des Kunststoffblattes auf den auf Aktivierungstemperatur erhitzten Schmelzkleber noch keine bleibenden, optisch sichtbaren Veränderungen zurückbleiben.This object is achieved in that the adhesive layer consists of a hot melt adhesive, the activation temperature of which is coordinated with the material of the plastic sheet or plastic sheets so that after the plastic sheet has been placed on the hot melt adhesive heated to the activation temperature, no permanent, optically visible changes remain .

Überraschenderweise hat sich gezeigt, daß transparente Kunststoffblätter - selbst wenn es sich um billiges Material mit nicht sehr hoher Hitzebeständigkeit handelt außerordentlich gut mit Schmelzklebern an einem frontund/oder gegebenenfalls auch Rückenlappen befestigen lassen, ohne daß sichtbare und bleibende Veränderungen eintreten. Die Aktivierungstemperatur des Schmelzklebers kann dabei -ie sich gezeigt hat - durchaus erheblich höher sein, als das Kunststoffmaterial bei direkter Wärmeeinwirkung - beispielsweise durch eine Heizplatte - aushalten kann. Dies mag damit zusammenhängen, daß offenbar die Wärmeableitung innerhalb des Kunststoffmaterials so gut ist, daß dié kurzfristige Wärmeeinwirkung nicht schädlich ist. Es kann somit ein Schmelzkleber mit hoher Klebewirkung, die weit über der von Haftklebern liegt, verwendet werden.Surprisingly, it has been found that transparent plastic sheets - even if it is cheap material with not very high heat resistance - can be attached extremely well to a front and / or back lobe with hot melt adhesives without visible and permanent changes occurring. It has been shown that the activation temperature of the hot-melt adhesive can be considerably higher than the plastic material can withstand direct exposure to heat, for example by means of a heating plate. This may be related to the fact that the heat dissipation within the plastic material is apparently so good that the short-term exposure to heat is not harmful. A hot melt adhesive with a high adhesive effect, which is far above that of pressure sensitive adhesives, can thus be used.

In der Zeichnung ist die Erfindung an Hand eines Ausführungsbeispiels näher veranschaulicht. Sie zeigt in stirnseitiger Ansicht einen Einband 1 für das Einbinden von Papierblättern.In the drawing, the invention is illustrated in more detail using an exemplary embodiment. It shows a front view 1 of a cover 1 for binding paper sheets.

Der Einband 1 besteht im wesentlichen aus einer Fronteinbanddecke 2, einem Einbandrücken 3 und einer Rückeneinbanddecke 4. Die Fronteinbanddecke 2 ist zweiteilig aufgebaut und besteht aus einem über eine Längsfalz 5 mit dem Einbandrücken 3 verbundenen Frontlappen 6 und einem auf dessen Innenseite befestigten transparenten Kunststoffblatt 7. Die Befestigung des Frontlappens 6 und des Kunststoffblattes 7 wird durch einen Schmelzkleberstreifen 8 bewirkt.The cover 1 essentially consists of a front cover 2, a cover spine 3 and a back cover 4. The front cover 2 is constructed in two parts and consists of a front flap 6 connected to the cover 3 via a longitudinal fold 5 and a transparent plastic sheet 7 fastened to the inside thereof. The attachment of the front tab 6 and the plastic sheet 7 is effected by a hot melt adhesive strip 8.

Die Rückeneinbanddecke 4 ist einstückig ausgebildet und mit dem Einbandrücken 3 ebenfalls über eine Längsfalz 9 verbunden. Frontlappen 6, Einbandrücken 3 und Rückeneinbanddecke 4 bestehen dabei aus Karton oder dergleichen.The back cover 4 is made in one piece and also with the cover 3 connected via a longitudinal fold 9. Front flap 6, back cover 3 and back cover 4 are made of cardboard or the like.

Auf der Innenseite des Einbandrückens 3 ist ebenfalls ein Schmelzkleberstreifen 10 aufgebracht. Er ist für die Befestigung der Papierblätter am Einbandrücken 3 vorgesehen. Hierfür wird der Einband 1 an den Längsfalzen 5, 9 U-förmig gefaltet und werden dann die papierblätter zwischen den Einbanddecken 2, 4 mit ihren Längskanten auf den Schmelzkleberstreifen 10 gestellt. Mit dem Einbandrücken 3 wird dann der Einband 1 auf eine Heizplatte gelegt, so daß der Einbandrücken 3 von unten erwärmt wird. Die Wärme durchdringt dabei den Einbandrücken 3 und aktiviert so den Schmelzkleberstreifen 10. Nach entsprechender Benetzung der Längskanten der Papierblätter kann der Einband 1 von der Heizplatte heruntergenommen werden. Nach Erkalten des Schmelzkleberstreifens 10 ist der Einbindevorgang abgeschlossen.A hot-melt adhesive strip 10 is also applied to the inside of the back cover 3. It is intended for attaching the paper sheets to the back cover 3. For this purpose, the cover 1 is folded in a U-shape on the longitudinal folds 5, 9 and the paper sheets are then placed with their longitudinal edges on the hot-melt adhesive strips 10 between the cover covers 2, 4. With the back cover 3, the cover 1 is then placed on a heating plate, so that the cover back 3 is heated from below. The heat penetrates the cover spine 3 and thus activates the hot-melt adhesive strip 10. After appropriate wetting of the longitudinal edges of the paper sheets, the cover 1 can be removed from the heating plate. After the hot-melt adhesive strip 10 has cooled, the binding process is completed.

Der Schmelzkleberstreifen 8 zur Befestigung des Kunststoffblattes 7 wird in gleicher Weise wie der Schmelzkleberstreifen 10 auf den FrontlaPPen 6 aufgebracht, indem der aufgelegte Schmelzkleberstreifen 8 kurzfristig erhitzt wird und hierdurch eine Verbindung mit dem Frontlappen 6 eingeht. Dies kann in einem Arbeitsgang mit der Aufbringung des Schmelzkleberstreifens 10 innerhalb einer Maschine erfolgen. In einem weiteren Arbeitsvorgang wird dann der Schmelzkleberstreifen 8 nochmals kurz erhitzt und dann sofort das Kunststoffblatt 7 aufgelegt. Das kalte Kunststoffblatt 7 nimmt sofort nach dem Benetzungsvorgang die Wärme aus dem Schmelzkleberstreifen 8 heraus und läßt ihn erstarren, so daß der Einband 1 ohne Zeitverlust gehandhabt werden kann.The hot-melt adhesive strip 8 for fastening the plastic sheet 7 is applied to the front flap 6 in the same way as the hot-melt adhesive strip 10, in that the hot-melt adhesive strip 8 placed on it is heated for a short time and thereby forms a connection with the front flap 6. This can be done in one operation with the application of the hot-melt adhesive strip 10 within a machine. In a further operation, the hot-melt adhesive strip 8 is then briefly heated again and the plastic sheet 7 is then immediately placed on it. The cold plastic sheet 7 takes the heat out of the hot-melt adhesive strip 8 immediately after the wetting process and allows it to solidify, so that the cover 1 can be handled without loss of time.

Nach einem anderen Verfahren wird Schmelzkleber auf relativ hohe Temperatur, beispielsweise 150°C bis 180°C, erhitzt, so daß er sehr dünnflüssig ist. In diesem Zustand wird er auf die Innenseite des Frontlappens 6 aufgestrichen, so daß sich dort ein Schmelzkleberstreifen 8 nach dessen Erkalten bildet. Das Kunststoffblatt 7 kann dann nach nochmaliger Erhitzung des Schmelzkleberstreifens 8 mittels Siegelbacken aufgesiegelt werden, wodurch sich eine sehr feste Verbindung ohne nach außen sichtbare Beschädigung des Kunststoffblattes 7 ergibt.In another process, hot melt adhesive is heated to a relatively high temperature, for example 150 ° C. to 180 ° C., so that it is very thin. In this state, it is spread on the inside of the front flap 6, so that a hot-melt adhesive strip 8 forms there after it has cooled. The plastic sheet 7 can then be sealed after the heating of the hot-melt adhesive strip 8 by means of sealing jaws, which results in a very firm connection without any damage to the plastic sheet 7 which is visible from the outside.

Als Schmelklebstoffe kommen vor allem Ätyhlen-Vinylacetat-Copolymere in Frage, die zusätzlich noch Kohlenwasserstoffharze beinhalten. Ergänzend kann noch ein Alterungsschutzmittel zugegeben sein. Erfindungsgemäß ist die Aktivierungstemperatur dieses Schmelzklebers so eingestellt, daß bei dieser Temperatur keine optisch sichtbaren Veränderungen am Kunststoffblatt 7 entstehen.Ethylene-vinyl acetate copolymers, which additionally contain hydrocarbon resins, are particularly suitable as hot melt adhesives. In addition, an anti-aging agent can be added. According to the activation temperature of this hot melt adhesive is set so that no optically visible changes occur on the plastic sheet 7 at this temperature.

Claims (1)

  1. Cover for paper sheets with a spine and, adjoining the same on both sides by means of folds (5, 9), front and rear covers (2, 4), of which at least the front cover consists of a front tab (6), which integrally adjoins the spine, and of a transparent plastic sheet, which is fastened to the inside of the front tab by means of an adhesive layer, and with a thermoplastic adhesive (10) [sic], which is applied to the inside of the spine, for fastening the paper sheets, characterized in that the adhesive layer (8) consists of a thermoplastic adhesive, the activation temperature of which is matched to the material of the plastic sheet (7) or of the plastic- sheets in such a manner that after the plastic sheet (7) has been placed on the thermoplastic adhesive, which has been heated to activation temperature, no lasting optically visible changes remain.
EP84111791A 1983-10-29 1984-10-03 Cover for paper sheets Expired - Lifetime EP0140197B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84111791T ATE52061T1 (en) 1983-10-29 1984-10-03 BINDING FOR PAPER SHEETS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8331187U 1983-10-29
DE8331187U DE8331187U1 (en) 1983-10-29 1983-10-29 Cover for sheets of paper

Publications (3)

Publication Number Publication Date
EP0140197A2 EP0140197A2 (en) 1985-05-08
EP0140197A3 EP0140197A3 (en) 1986-12-03
EP0140197B1 true EP0140197B1 (en) 1990-04-18

Family

ID=6758433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111791A Expired - Lifetime EP0140197B1 (en) 1983-10-29 1984-10-03 Cover for paper sheets

Country Status (3)

Country Link
EP (1) EP0140197B1 (en)
AT (1) ATE52061T1 (en)
DE (1) DE8331187U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1623841A2 (en) 2004-08-03 2006-02-08 Swedex GmbH & Co. KG Process for binding a stack of sheets in a cover of a book and binding device for carrying out this process
EP1637343A1 (en) 2004-09-21 2006-03-22 Monolith GmbH Bürosysteme Process for binding a sheet block in a cover and binding device to execute the process
US7326019B2 (en) 2003-05-12 2008-02-05 Monolith Gmbh Burosysteme Method for binding a sheet stack into a binder, binding apparatus for carrying out that method, and a binder suitable therefor
EP2763856B1 (en) 2011-10-07 2017-01-18 Unibind Limited A method for binding leaves and a binding device applied thereto

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1000926A3 (en) * 1987-09-14 1989-05-16 Unibind Ltd Paper sheet binder - has adhesive on outside of back which becomes supple under effect of heat which melts glue
BE1001822A3 (en) * 1988-06-17 1990-03-13 Unibind Ltd Improved universal binder with universal glue spine for thermal gluingsystems
BE1001821A3 (en) * 1988-06-17 1990-03-13 Lolli Carla P Binding FOR BINDING OF LOOSE LEAVES IN A FOLDER.
BE1002552A4 (en) * 1988-10-07 1991-03-19 Lolli Carla P UNIVERSAL Binding FOR BINDING OF DOCUMENTS IN A SEPARATE FOLDER.
HUT60670A (en) * 1989-06-22 1992-10-28 Unibind Cyprus Ltd File-cover
BE1004062A3 (en) * 1989-06-22 1992-09-15 Unibind Cyprus Ltd Binding element with detachable end leaf
BE1004148A3 (en) * 1990-04-23 1992-09-29 Lolli Carla P Binder with detachable end leaf
CH680437A5 (en) * 1990-05-04 1992-08-31 Ibico Ag
FR2675741B1 (en) * 1991-04-26 1996-12-06 Joel Lepretre BINDING TO HEEL FOR THE CLASSIFICATION OF FLY SHEETS AND INSERTS.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1107800A (en) * 1954-09-11 1956-01-05 Speciallites Alimentaires Bour Polyethylene bonding process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7326019B2 (en) 2003-05-12 2008-02-05 Monolith Gmbh Burosysteme Method for binding a sheet stack into a binder, binding apparatus for carrying out that method, and a binder suitable therefor
EP1623841A2 (en) 2004-08-03 2006-02-08 Swedex GmbH & Co. KG Process for binding a stack of sheets in a cover of a book and binding device for carrying out this process
DE102004037806B4 (en) * 2004-08-03 2015-01-15 Swedex Gmbh & Co. Kg Method of incorporating a stack of sheets in a cover and binding device for carrying out this method
EP1637343A1 (en) 2004-09-21 2006-03-22 Monolith GmbH Bürosysteme Process for binding a sheet block in a cover and binding device to execute the process
EP2763856B1 (en) 2011-10-07 2017-01-18 Unibind Limited A method for binding leaves and a binding device applied thereto

Also Published As

Publication number Publication date
ATE52061T1 (en) 1990-05-15
EP0140197A3 (en) 1986-12-03
EP0140197A2 (en) 1985-05-08
DE8331187U1 (en) 1984-04-19

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