EP0390733B1 - Verfahren zum Verbinden von Papierlagen - Google Patents

Verfahren zum Verbinden von Papierlagen Download PDF

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Publication number
EP0390733B1
EP0390733B1 EP19900810180 EP90810180A EP0390733B1 EP 0390733 B1 EP0390733 B1 EP 0390733B1 EP 19900810180 EP19900810180 EP 19900810180 EP 90810180 A EP90810180 A EP 90810180A EP 0390733 B1 EP0390733 B1 EP 0390733B1
Authority
EP
European Patent Office
Prior art keywords
paper
layers
sonotrode
printing
paper layers
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
EP19900810180
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0390733A3 (de
EP0390733A2 (de
Inventor
Erwin Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferag AG
Original Assignee
Ferag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ferag AG filed Critical Ferag AG
Publication of EP0390733A2 publication Critical patent/EP0390733A2/de
Publication of EP0390733A3 publication Critical patent/EP0390733A3/de
Application granted granted Critical
Publication of EP0390733B1 publication Critical patent/EP0390733B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C9/00—Applying glue or adhesive peculiar to bookbinding
    • B42C9/0093—Applying glue or adhesive peculiar to bookbinding by fusing, welding sheets together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/008—Attaching together sheets, strips or webs; Reinforcing edges by friction, e.g. obtained ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/43—Gathering; Associating; Assembling
    • B65H2301/436—Gathering; Associating; Assembling on saddles

Definitions

  • the invention relates to a method for connecting layers of paper.
  • Adhesive binding, thread stitching and wire stitching have proven particularly effective for the mass binding of paper layers, such as occur in printing houses.
  • the perfect binding is preferably used for binding books, catalogs and specialist magazines.
  • gluing processes are often combined. For example, a low-viscosity layer of high wetting is applied first, followed by layers that improve adhesion. On in this way the bandage quality can be significantly increased compared to the simpler processes.
  • the width of the glue application is usually 4 mm. Approx. 15,000 copies / hour can be bound by gluing, whereby the glue drying on the assembly line must be allowed a considerable distance.
  • a major disadvantage of the process is the drying time that must be granted to the adhesive.
  • Thread stitching has a number of advantages and disadvantages compared to perfect binding. While the quality of the perfect binding largely depends on the type of paper, the thread binding is largely independent of the paper quality.
  • thread stitching can be seen as a relatively slow method and well suited for high-quality binding of books.
  • Wire stitching is of the greatest importance for stapling printed material in the form of booklets and brochures.
  • Rotary wire stitchers have a high performance but are relatively expensive. A copy of a booklet can be up to 100 pages long.
  • the wire clamp is pressed against an abutment without a locking mechanism by the spreading paper.
  • Single wire stitchers perform less than rotary wire stitchers in units of time; but they are also expensive. However, the product can contain up to 300 pages.
  • Single wire stitchers have a stitch abutment with a locking mechanism.
  • wire stitching is the ability to fully open the booklet. There is no closed fold edge that covers part of the print information.
  • wire stitching is the fact that the material is applied through the clip in the back, which limits the stackability of the products. Furthermore, the selection, storage and processing of the suitable wire material requires additional effort. There are also limits to the reliability of wire stitching - especially when it comes to thick, more than 200 pages of paper.
  • This coating can be, for example, a printing ink that is applied during printing or a thin, quick-drying plastic film. If necessary, a suitable binder can already be incorporated during paper production. The simultaneous action of heat, pressure and a vibration movement ensures sufficient adhesion of the paper layers even when a very small amount of binding material is present.
  • connection of paper layers by gluing is known, but this method requires that glue must be applied to the adhesive immediately prior to gluing. On the one hand, this requires an additional work step in which the paper sheets are individually provided with adhesive and, on the other hand, it must be ensured that the paper sheets prepared for connection do not touch prematurely.
  • the proposed ultrasound process allows the paper to be pretreated simultaneously with the printing for the subsequent connection can - the pre-treatment process can be integrated into the printing process - and above all that the further processing of the printed matter, such as cutting, arranging the individual sheets and folding the paper layers, is not impaired by the connection pre-treatment. It is particularly advantageous that the paper layers can be connected in analogy to wire or thread stitching.
  • FIG. 1 shows an example of the basic structure of an ultrasound device as it is used for welding plastics:
  • the control unit 10 consists of a power supply unit 11, the amplifier 12, the high-frequency transformer 13 and a tunable positive coupler 14. The latter is connected to the input of the amplifier 12 and the high-frequency transformer 13 via the positive feedback circuit 15.
  • the ultrasonic oscillator 20 is connected to the high-frequency transformer as a frequency-determining element. This circuit ensures that the ultrasonic vibrator 20 can be operated in acoustic resonance, which is necessary for a good transmission of the vibration power from the source to the working point.
  • the phase position of the high-frequency oscillator can be optimized by tuning the co-coupler 14.
  • the basic structure of the ultrasonic vibrator 20 is shown in FIG. 2.
  • This device is generally composed of an ultrasonic transducer 21 and the vibrating tool, the so-called sonotrode 24.
  • the ultrasound transducer 21 consists of a stack of piezo-ceramic plates 22 connected in parallel. If necessary, a sound amplitude transformer, a so-called booster 23, is interposed between the ultrasound transducer and the sonotrode. This passive element 23 causes an increase or decrease in the vibration amplitude.
  • the sonotrode, the real one Connection tool ensures at its tip 25 the transmission of the ultrasonic power to the weld metal 26 to be connected.
  • An abutment 27 serves to absorb the contact pressure which the sonotrode end exerts on the weld metal 26.
  • the abutment 27 must be designed in such a way that it absorbs as little as possible of the ultrasonic power used, ie it must have the highest possible mechanical inertia with respect to the weld metal 26 and be as undeformable
  • the system of ultrasonic transducer 21 - booster 23 - sonotrode 24 is operated in acoustic resonance.
  • a longitudinal vibration is excited in most applications.
  • Ultrasonic welding machines generally work at a frequency of 20 kHz to 40 kHz.
  • the longitudinal oscillation amplitude at the tip 25 of the sonotrode 24 is approximately 100 ⁇ m at 20 kHz operation and approximately 50 ⁇ m at 40 kHz.
  • the device consisting of the control device 10 and the ultrasonic oscillator 20, is usually operated by means of a control system in such a way that the mechanical amplitude at the sonotrode end 25 has a constant, predetermined value, regardless of the damping by the weld metal 26.
  • the contact pressure which the sonotrode end 25 exerts on the weld metal 26 and the time of the ultrasonic action can be specified.
  • the choice of the booster 23 and the shape of the sonotrode 24 depend on the type of the weld metal 26 and the welding to be carried out. Examples of the most common sonotrode shapes are in the previously mentioned work "Ultrasound for plastic joining" by R. Altena, W.-R.Behnke, L.Horvath, H.-J.Rheinhardt and W.Ruhland.
  • 3 to 5 show some examples of sonotrodes which are particularly favorable for applications which will be mentioned later.
  • 3 shows a conical, 31, in a tip 32 tapering sonotrode 24, which is suitable for creating spot welds.
  • FIG. 4 illustrates a sonotrode with a flat sonotrode end 41 and a cutting-shaped welding edge 42.
  • This embodiment of the sonotrode 24 is particularly suitable for producing a long, narrow weld seam.
  • FIG. 5 shows a combination of the two embodiments from FIGS. 3 and 4.
  • the flat sonotrode end 41 is designed in a similar cutting shape to that, 42, from FIG. 4.
  • the knife-shaped welding edge 42 provided with notches 53. Welding points lying in a long and narrow weld seam can thus be generated simultaneously.
  • the paper layers are slightly moistened.
  • the paper structure is easily destroyed - a paper pulp is formed locally, as is present in the paper production.
  • the paper fibers are felted and glued in analogy to the actual paper production process. In this way, limited liability of the paper layers is already possible.
  • a laterally delimited strip 63 is defined in the fold region 62 of the booklet of the paper sheet 61 and is provided with a printing dye or a plastic which melts at a higher temperature.
  • Such strips 63 can, for example, additionally or alternatively be applied in regions 64 of sheet 61, where insert sheets, registration and receipt forms, or art prints are later inserted.
  • the stripe regions 63, 64 can either be applied as part of the printing process - for example by multiple coating using printing inks, a special printing dye containing a large amount of binder - or in an additional processing step on the paper 61.
  • pretreatment for the subsequent ultrasonic welding of the paper 61 consists in the application of a colorless binder, for example a very thin plastic film, which is not sharply delimited. Such pretreatment does not require a change in the printing process, for example by using a special printing dye.
  • the pretreatment could be accomplished, for example, by spraying the printed sheet in the binding region.
  • the material application which usually falls in the fold region anyway, would hardly be disruptive due to the minimal material application.
  • a further paper treatment consists in that the paper sheet is pretreated on all sides either during the production process during or after the printing process for the ultrasonic welding. With a pretreatment during or immediately after papermaking, respectively. Before or during the printing process, for example, a desired gloss effect, moisture protection or the like could also be added can be achieved.
  • binder or water can be injected, for example, into the fold region 63 of the paper layers already stacked.
  • the paper layers can be pre-perforated and, at the same time or subsequently, provided with binder or water by means of hollow needles or cannulated needles.
  • binder or water can be injected, for example, into the fold region 63 of the paper layers already stacked.
  • the paper layers can be pre-perforated and, at the same time or subsequently, provided with binder or water by means of hollow needles or cannulated needles.
  • There is also the possibility of shooting drops of liquid into the paper layers. See further details in the patent application EP-A-0390734 filed in parallel with the title "Process for the Perfect Binding of Paper Layers".
  • an abutment 27 is necessary to absorb the contact pressure that the sonotrode 24 exerts on the weld metal 26.
  • this abutment can be a plate, as is shown in Fig. 7.
  • the abutment is an instep-shaped device 27 ', on which the paper layers in the scale flow of the printing press, as shown in Fig. 8, are stored.
  • the abutment can be rod-shaped or instep-shaped.
  • FIG. 9 shows an example of a basic illustration of a printing system with an integrated ultrasonic welding device for paper layers.
  • the paper passes from the paper loading device 90 to the printing device 91, which can consist of several printing stages.
  • the printed material is then cut lengthwise and, if necessary, fed to a cutting device 92.
  • the printed matter then reaches, for example, the welding pretreatment device 94, where binder is printed or sprayed on.
  • the print material will then appear bundled and transported further.
  • a welding pretreatment can be carried out by binding the binder on the bundled layers of paper.
  • the printed matter arrives in the ultrasonic welding device 95, where the paper layers are connected.
  • the bound products are then accepted, for example as a shingled stream 93, by the removal device 96.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP19900810180 1989-03-30 1990-03-08 Verfahren zum Verbinden von Papierlagen Expired - Lifetime EP0390733B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH115689 1989-03-30
CH1156/89 1989-03-30

Publications (3)

Publication Number Publication Date
EP0390733A2 EP0390733A2 (de) 1990-10-03
EP0390733A3 EP0390733A3 (de) 1991-05-08
EP0390733B1 true EP0390733B1 (de) 1994-08-10

Family

ID=4203791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900810180 Expired - Lifetime EP0390733B1 (de) 1989-03-30 1990-03-08 Verfahren zum Verbinden von Papierlagen

Country Status (3)

Country Link
EP (1) EP0390733B1 (ja)
JP (1) JP2934276B2 (ja)
DE (1) DE59006734D1 (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59402484D1 (de) * 1993-06-11 1997-05-28 Ferag Ag Verfahren und Vorrichtung zum Verbinden der Bogen eines mehrblättrigen Druckereiproduktes
ES2103533T3 (es) * 1994-01-10 1997-09-16 Ferag Ag Dispositivo para encuadernar articulos impresos.
ES2098854T3 (es) * 1994-01-19 1997-05-01 Ferag Ag Procedimiento y dispositivo para la encuadernacion con adhesivo de los pliegos de un producto de imprenta plegado de multiples paginas.
US6042318A (en) * 1997-06-30 2000-03-28 Xerox Corporation Bookbinding system employing microwave heating
SE512767C2 (sv) * 1997-11-17 2000-05-08 Moelnlycke Health Care Ab Förfarande för sammanfogning av papper, anordning samt bindemedelslös fog
US20030131919A1 (en) * 2001-12-28 2003-07-17 King Timothy James Method for simultaneously imprinting a pattern and bonding cellulose webs using ultrasonic energy
PL1588971T3 (pl) 2004-04-22 2009-03-31 Ferag Ag Sposób i urządzenie do obróbki produktów drukarskich
JP4044104B2 (ja) * 2005-03-31 2008-02-06 大王製紙株式会社 紙シートならびに紙シートの接合方法
JP5440458B2 (ja) * 2010-05-21 2014-03-12 大日本印刷株式会社 冊子製造装置
DE102013225737A1 (de) * 2013-12-12 2015-06-18 Robert Bosch Gmbh Verfahren zum Herstellen einer Verpackung und Verpackungsmaschine
DE102014217716A1 (de) 2014-09-04 2016-03-10 Bundesdruckerei Gmbh Datenträger und den Datenträger enthaltender heft- oder buchförmiger Gegenstand sowie Verfahren zum Herstellen des Datenträgers
DE102019202850A1 (de) 2019-03-01 2020-09-03 Syntegon Technology Gmbh Verfahren und Vorrichtung zum Fügen von Papiermaterial
DE102019202847A1 (de) * 2019-03-01 2020-09-03 Syntegon Technology Gmbh Schlauchbeutelmaschine zur Herstellung von Papierbeuteln

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321558A (en) * 1962-10-08 1967-05-23 Cavitron Ultrasonics Inc Ultrasonic heating method
FR1382415A (fr) * 1963-12-24 1964-12-18 Omega Lab Ltd Procédé et appareil pour l'assemblage par soudage de matériaux fibreux et produits conformes à ceux ainsi obtenus
CA945313A (en) * 1970-05-27 1974-04-16 Gopal C. Bhagat Method of binding
US3793016A (en) * 1972-10-19 1974-02-19 Xerox Corp Electrophotographic sheet binding process
US4149288A (en) * 1977-06-06 1979-04-17 Sendor Bernard T Ultrasonic paper welding
DE2905604A1 (de) * 1979-02-14 1980-08-21 Rissen Gmbh Maschf Verfahren zum verkleben von papier- und/oder kartonteilen
EP0340334A3 (de) * 1988-05-05 1991-03-06 Drescher Geschäftsdrucke Gmbh Vorrichtung zum Verbinden von zwei- oder mehrlagigen Papiererzeugnissen

Also Published As

Publication number Publication date
JP2934276B2 (ja) 1999-08-16
EP0390733A3 (de) 1991-05-08
EP0390733A2 (de) 1990-10-03
DE59006734D1 (de) 1994-09-15
JPH03108590A (ja) 1991-05-08

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