EP1459879A2 - Procédé pour la fabrication des feuilles en carton ondulé - Google Patents

Procédé pour la fabrication des feuilles en carton ondulé Download PDF

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Publication number
EP1459879A2
EP1459879A2 EP04005758A EP04005758A EP1459879A2 EP 1459879 A2 EP1459879 A2 EP 1459879A2 EP 04005758 A EP04005758 A EP 04005758A EP 04005758 A EP04005758 A EP 04005758A EP 1459879 A2 EP1459879 A2 EP 1459879A2
Authority
EP
European Patent Office
Prior art keywords
web
corrugated cardboard
printing
print
printed
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.)
Withdrawn
Application number
EP04005758A
Other languages
German (de)
English (en)
Other versions
EP1459879A3 (fr
Inventor
Norbert Städele
Felix Titz
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.)
BHS Corrugated Maschinen und Anlagenbau GmbH
Original Assignee
BHS Corrugated Maschinen und Anlagenbau GmbH
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 BHS Corrugated Maschinen und Anlagenbau GmbH filed Critical BHS Corrugated Maschinen und Anlagenbau GmbH
Publication of EP1459879A2 publication Critical patent/EP1459879A2/fr
Publication of EP1459879A3 publication Critical patent/EP1459879A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2822—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard involving additional operations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1025—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina to form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact

Definitions

  • the invention relates to a method for producing corrugated cardboard sheets with a corrugated cardboard system and a material web.
  • Corrugated cardboard plants for the production of single-sided laminated corrugated cardboard or multi-layer corrugated cardboard are e.g. B. from EP 0 687 552 B1. Simple and flexible methods for printing corrugated webs are not known.
  • the invention is based on the fact that to increase the print quality in other areas, for. B. when printing special paper or foils in the office environment, used coatings can also be used when printing on material webs of corrugated cardboard systems.
  • the print quality-enhancing coating which is also known as a primer, means that the printing ink can be applied precisely and in particular does not run after application. This increases the print resolution that can be achieved and thus increases the print quality.
  • the coated material web is provided in rolls, as are customary for the known corrugated cardboard plants.
  • the coating that increases the print quality can also be applied directly before printing. With the coating the print quality can also be increased in the otherwise unchanged known corrugated cardboard systems.
  • print jobs can be distributed very flexibly on the web to be printed.
  • the processing of small or very small print jobs is also guaranteed, since printing on the webs with different print patterns is possible without exchanging hardware components of the printing device.
  • the print samples can also be printed with different scales in different directions, in particular along and across the web conveying direction.
  • a web of corrugated cardboard laminated on one side can finally be printed on its corrugated cardboard web side, especially when using an inkjet printer, which is not possible using printing rollers. Subsequent printing of the corrugated cardboard sheets or printing on material rolls provided in the corrugated cardboard system is not required before the corrugated cardboard system is operated.
  • a corrugated cardboard system as is shown schematically in FIGS. 1 and 6, has a machine 1 for producing corrugated cardboard laminated on one side.
  • a first material web 3 is fed to the machine 1 from a first unrolling device 2.
  • the material webs are endless paper webs.
  • the material web 3 represents a base web for the corrugated cardboard produced in the machine 1.
  • FIG. 2 shows an enlarged side view of the first material web 3 in detail.
  • This has a material base layer 3a with a coating 3b, a so-called primer, which increases the print quality.
  • the thickness ratio between the base material layer 3a and the primer 3b is not shown to scale in FIG. In practice, the primer 3b is much thinner than the base material layer 3a than shown in FIG. 2.
  • the primer 3b does not necessarily have to be present on the rolled-up material web 3, but can also be applied to the material web 3 after it has been rolled off.
  • the first material web 3 runs through a first digital printing unit 4 with an inkjet print head 5, which prints the top of the first material web 3 in accordance with a print job.
  • the printing unit 4 is connected to a job control device 7 via a signal line 6.
  • the printed first material web 3 is brought together in the machine 1 with a second material web 8, which is unrolled by a second unrolling device 9.
  • the second material web 8 is carried out in the machine 1 to produce a corrugation between two corrugating rollers 10 arranged adjacent to one another.
  • the second material web 8 is present as a corrugated web 8.
  • the tips of the corrugated web 8 are then glued in a gluing device 11 and the corrugated web 8 in the machine 1 with the first material web 3 is pressed together in a nip between a pressure roller 12 and one of the corrugated rollers 10 and connected to one another.
  • the machine 1 thus represents a first production unit of a production device 42 for merging material webs to form a corrugated cardboard web. From the machine 1, a web of corrugated cardboard 13 laminated on one side is removed upwards and around a deflection roller 14 into a Direction of work 15 deflected.
  • the machine 1 for producing webs of corrugated cardboard laminated on one side is generally known, for example from EP 0 687 552 A (corresponds to US Pat. No. 5,632,850), DE 195 36 007 A (corresponds to GB 2,305,675 A) or DE 43 05 158 A1, what is referred to in the details.
  • FIG. 3 shows the material web 3 before it passes through a preheating device 16 in the further course of the working direction 15 after the deflection roller 14.
  • the first material web 3 has first marks 17 on the edge, which are designed as equidistant line markings running transversely to the working direction 15. Two adjacent first marks 17 are at a distance a 1 from one another in front of the preheating device 16, as shown in FIG.
  • the first material web has strips with second marks 18 at regular intervals along the working direction 15, which are designed as equidistant short line marks parallel to the working direction 15.
  • Two adjacent second marks 18 are at a distance b 1 from one another in front of the preheating device 16.
  • Figure 4 shows the material web 3 in a representation similar to Figure 3 after the preheating device 16.
  • the distance between each two adjacent first marks 17 are here denoted by a 2 and the distance between two adjacent second marks 18 is denoted by b 2 .
  • a reading device 19 which is arranged above the corrugated cardboard web and thus above the upper side of the first material web 3 bearing the marks 17, 18 and between the deflection roller 14 and the preheating device 16, determines the distances a 1 and b 1 between adjacent marks 17, 18.
  • the reading device 19 is designed to be comparable to a barcode scanner.
  • the reading device 19 is connected to the job control device 7 via a signal line 20.
  • the machine 1 is followed by a second rolling device 21 for a third material web 22 as a further cover web for the corrugated cardboard web 13 in the working direction 15.
  • the corrugated cardboard web 8, the first material web 3 representing the base web and the third material web 22 representing the cover web are suitably selected paper webs. It is also partly customary to refer to the third material web 22 as a liner web, in which case the first material web 3 is then referred to as the cover web.
  • the material webs 3, 8 and 22 are unrolled at a speed of up to 400 m / min.
  • the third material web 22 is first deflected around a deflection roller 23 such that it is guided in the working direction 15.
  • the third material web 22 is then passed through two further deflecting rollers 24, 25 deflected by 180 ° in such a way that their side pointing downward between the deflecting rollers 23 and 24 now points upward, the third material web 22 being guided after the deflecting roller 25 counter to the working direction 15.
  • the third material web 22 runs through a second printing unit 26, which together with the first printing unit 4 forms a digital printing device 27.
  • the side of the third material web 22 facing upward after the deflecting roller 25 is printed in the printing unit 26 by an ink-jet print head 28 in accordance with a print job.
  • the third material web 22 likewise has a two-layer structure with a base material layer and a primer such that the primer layer of the third material web 22 is printed on by means of the ink jet print head 28 of the second printing unit 26.
  • the primer of the third material web 22 can also be brought up after unrolling and before the second printing unit 26.
  • the second printing unit 26 is connected to the job control device 7 via a signal line 29 for print job control. After passing through the second printing unit 26, the third material web 22 is again deflected by essentially 180 ° with the aid of two further deflection rollers 30, 31, so that the third material web 22 is again conveyed essentially in the working direction 15 after the deflection roller 31.
  • the third material web 22 is also fed to the preheating device 16 after the deflection roller 31.
  • This has two heatable heating rollers 32 arranged one above the other.
  • the corrugated cardboard web 13 and the third material web 22 run one above the other and partially wrap around the respective heating rollers 32.
  • Behind the preheating device 16 is a Glue unit 33 arranged with a gluing roller 34, which is partially immersed in a glue bath 35.
  • the corrugated web 8 of the corrugated cardboard web 13 is in contact with the gluing roller 34.
  • a heating pressure device 36 is arranged behind the gluing unit 33 and has a horizontal table 37 with heating plates, which extends in the working direction 15. Above the table 37, a driven endless pressure belt 39 deflected by three rollers 38 is provided. A pressure gap 40 is formed between the pressure belt 39 and the table 37, through which the corrugated cardboard web 13 and the third material web 22 are guided and pressed against one another there.
  • a corresponding heating device 36 is known from DE 199 54 754 A1.
  • a three-ply corrugated cardboard web 41 is formed in the heating device 36.
  • the heating device 36 and the table 37 represent a second production unit of the production device 42 for bringing together material webs to form the corrugated cardboard web 41.
  • FIG. 5 shows two sections of the printed first material web 3 as part of the corrugated cardboard web 41 after exiting the heating device 36.
  • Various printing patterns 43 are shown, which e.g. B. are required for printing certain package or box sizes and types. As is shown by way of example in FIG. 5, the print patterns 43 can have different dimensions along the working direction 15, but also transversely thereto.
  • the print patterns 43 are e.g. B. to advertising prints, work instructions z. B. in the form of stencils for folding or cutting, number or date imprints or even imprints that a specific production group (batch) by means of the corrugated sheets 62, 67 treat goods to be packaged. This can be information that can be read in plain text or barcodes. Due to the possibilities of the digital printing device 27, the variation possibilities for the printing pattern 43 are practically unlimited. It is conceivable, for. B. to design the print samples 43 so that they represent individual parts of an overall image, which arises from the stacking of these individual print sample parts having corrugated cardboard sheets 62, 67 or the packaging produced from them.
  • FIG. 6 shows a second part of the corrugated cardboard system following the exit of the corrugated cardboard web 41 from the heating device 36.
  • a second reading device 44 is initially arranged at the upstream end of FIG.
  • the reading device 44 is connected to the job control device 7 via a signal line 45, which is shown interrupted in FIG.
  • the second reading device 44 detects the upper side of the material web 3 in the section which is shown in FIG. 4.
  • the second reading device 44 measures the distances a 2 , b 2 between adjacent first marks 17 and adjacent second marks 18.
  • a longitudinal cutting / creasing device 46 Arranged in the working direction 15 after the reading device 44 is a longitudinal cutting / creasing device 46, which consists of two creasing stations 47 arranged one behind the other and two longitudinal cutting stations 48 arranged one behind the other.
  • the creasing stations 47 each have paired creasing tools 49, between which the corrugated cardboard web 41 is carried out.
  • the slitting stations 48 each have knives 50 which can be driven in rotation and which can be brought into engagement with the corrugated cardboard web 41 for the longitudinal severing thereof.
  • the more precise structure of the longitudinal cutting / creasing device 46 is from DE 197 54 799 A (corresponds to US 6,071,222) and known from DE 101 31 833 A, to which reference is hereby made for the detailed structure.
  • a switch 51 is arranged in the working direction 15 behind the longitudinal cutting / creasing device 46, in which longitudinally cut web sections 52, 53 of the corrugated cardboard web 41 are separated from one another.
  • the web sections 52, 53 are subsequently fed to a cross cutting device 54.
  • This has an upper cross-cutting roller pair 55 for the upper web section 52 and a lower cross-cutting roller pair 56 for the lower web section 53.
  • the rollers of the roller pairs 55, 56 each carry a cutter bar 57 which extends radially outward and runs perpendicular to the working direction 15.
  • the upper cross-cutting roller pair 55 is followed by an upper conveyor belt 58, which is deflected around drivable rollers 59.
  • a tray 60 with a vertically running stop 61 on which corrugated cardboard sheets 62 cut from the web section 52 by means of the cross cutting device 54 are stacked to form a stack 63.
  • the shelf 60 can be adjusted in height, as indicated in FIG. 6 by an arrow 64.
  • the tray 60 can be lowered for the further transport of the stack 63 up to a machine base 65 which carries the corrugated cardboard system.
  • a further, lower conveyor belt 66 Downstream of the lower cross-cutting roller pair 56 is a further, lower conveyor belt 66 which stacks corrugated cardboard sheets 67, which were cut from the web section 53 by means of the cross-cutting device 54, on a further tray 68. To adjust to the height of the stack 63, the lower conveyor belt 66 can be raised, as indicated by an arrow 68a.
  • the printing of the corrugated cardboard web 41 with printing patterns 43 takes place as follows: First, material webs are provided with primer layers and made available at the unrolling devices 2 and 21. However, the primer coating can also be dispensed with. An uncoated material web is then provided on the unrolling device 9. Alternatively, the primer coating can also be applied directly in front of the printing units 4, 26 after the material webs have been rolled off. The marks 17, 18 are applied by the printing unit 4. The corrugated cardboard system is then preceded, in which an unprinted corrugated cardboard web 41 is produced. This continues until the web of corrugated cardboard produced has reached the detection area of the second reading device 44.
  • the two reading devices 19, 44 then detect the distances a 1 , b 1 and a 2 , b 2 of the marks 17 and 18.
  • the reading devices 19, 44 then pass this information on to the job control device 7.
  • a control computer of the order control device 7 determines a degree of longitudinal shrinkage of the material webs 3, 8, 22 in the working direction 15, ie a change in the Web dimensions in the longitudinal direction between the web in the area of the first printing unit 4 of the printing device 27 on the one hand (reading device 19) and the web before cutting the corrugated cardboard sheets 62, 67 on the other hand (reading device 44).
  • a transverse shrinkage of the material webs 3, 8, 22 is determined via the ratio of the distances b 1 , b 2 of adjacent marks 18 in the area of the reading device 19 on the one hand and in the area of the reading device 44 on the other hand.
  • the determination of the transverse shrinkage and the associated markings can be dispensed with.
  • the distance parameters a 1 , a 2 , b 1 , b 2 are transmitted from the reading devices 19, 44 to the job control device 7.
  • the job control device 7 determines scaling factors for the print pattern 43 to be applied by the printing units 4 and 26.
  • the printing units 4 and 26 therefore also print the printing pattern 43 such a size reservation that due to the predetermined shrinkage of the web, the desired size of the print pattern 43 on the web sections 52, 53 results.
  • the job control device 7 controls the slitting stations 48 on the one hand and the cross-cutting device 54 on the other hand via signal lines (not shown) in accordance with the specifications of the print jobs output by the job control device 7 to the printing devices 27.
  • the corrugated cardboard sheets 62, 67 are thus cut in such a way that the printed patterns 43 are located at predetermined positions of the corrugated cardboard sheets 62, 67.
  • the print jobs forwarded from the job control device 7 to the printing device 27 can include small or very small series for only a few sheets of corrugated cardboard 62, 67.
  • the slitting station 48 is controlled by the job control device 7, so that the width of the web sections 52, 53 is cut accordingly.
  • a cross-cutting device which is also controlled accordingly by the job control device 7, can be used, which makes it possible to cut sheets of corrugated cardboard of different lengths in the working direction 15.
  • the size of the corrugated cardboard sheets 62, 67 can then be adapted to the shape and size of the print samples 43 of the respective print jobs in a completely flexible manner.
  • the sides of the material webs 3, 22 to be printed can be printed by a suitable device, e.g. B. be cleaned by a compressed air blower. As an alternative to blowing off the sides of the material webs 3 and 22 to be printed, these sides can also be suctioned off. Finally, it is also possible to equip the material webs 3, 22 in such a way that they are antistatic, so that it is avoided that e.g. B. accumulates dust on the pages to be printed.
  • the material webs 3, 22 are preferably printed in an air-conditioned environment. The temperature is kept at a value which is less than 40 ° C. After printing on the material webs 3, 22, the printed pages can be sealed by applying an appropriate protective layer. Such sealing can take place before or after the corrugated cardboard sheets 62, 67 are cut to size.
  • FIG. 7 shows a second part of a corrugated cardboard system according to a second embodiment.
  • FIGS. 8 to 11 show further exemplary embodiments of corrugated cardboard plants. Components which correspond to those which have already been described with reference to FIGS. 1 to 6 have the same reference symbols and are not explained again in detail.
  • a digital printing device 69 is arranged downstream of the heating device (not shown). Since there is no relevant shrinkage of the web between the printing of the corrugated cardboard web 41 and the storage of the cut-out corrugated cardboard sheets 62, 67, the reading devices 19, 44 of the first exemplary embodiment can be dispensed with here.
  • the longitudinal cutting / creasing device 46 is preceded by a reading device 70 which scans the corrugated cardboard web 41 transversely and detects the distribution of print patterns 43 on the corrugated cardboard web 41.
  • the reading device 70 is in signal connection with the slitting stations 48 via signal lines 71, 72.
  • the slitting stations 48 are controlled in such a way that web sections 52, 53 are cut with the print pattern distribution of corresponding width.
  • the reading device 73 Between the slitter / scoring device 46 and the cross cutter 54 there is a further reading device 73, which scans the web sections 52, 53 of the corrugated cardboard web in the working direction 15, i.e. lengthways, in its detection area and thereby the distribution of pressure pattern 43 on the Corrugated cardboard web 41 recorded along the working direction 15.
  • the reading device 73 is connected to the cross-cutting device 54 via a signal line 74.
  • the reading device 73 controls the cross-cutting device 54 in such a way that it cuts the corrugated cardboard sheets 62, 67 along the working direction 15 in accordance with the print pattern distribution.
  • a surface shape of the corrugated cardboard sheets to be set in the transverse and longitudinal dimensions can thus be determined and this corresponding surface shape can be cut by controlling the longitudinal cutting stations 48 or the transverse cutting device 54.
  • printing units corresponding to the printing units can also be used in a variant of the second exemplary embodiment 4 or 26 of the first exemplary embodiment can be provided for printing on individual material webs in front of the machine 1 or the heating device 36.
  • the printing device 69 can be designed with two inkjet print heads in such a way that it prints the corrugated cardboard web 41 on both sides, that is to say simultaneously, on the top and bottom.
  • Figures 8 and 9 show the two parts of a corrugated cardboard system according to a third embodiment.
  • the second printing unit 26 is missing compared to the first exemplary embodiment.
  • the deflection of the third material web by the deflecting rollers 23, 24, 25, 30, 31, which is therefore no longer necessary, is also omitted in the third exemplary embodiment, the first reading device 19.
  • the job control device is also present in this exemplary embodiment, but is not shown.
  • a first material web 3 is printed which has marks 17, 18 with an initial spacing which is predetermined and was entered into the order control device of the third exemplary embodiment before the production of the corrugated cardboard system began .
  • the job control device of the third exemplary embodiment therefore knows the distances a 1 , b 1 , although these are not measured by a reading device.
  • the second part of the third exemplary embodiment of the corrugated cardboard system shown in FIG. 9 corresponds to the second part of the corrugated cardboard system of the first exemplary embodiment shown in FIG. 6 with the difference that the reading device 44 of the first exemplary embodiment, which both evaluates the marks 17 and the marks 18 with respect to their distance from one another, is functionally divided into a first reading device 75 for determining the distance between the marks 17 and a second reading device 76 for determining the distance between the marks 18.
  • the reading devices are via signal lines (not shown) 75, 76 connected to the order control device of the corrugated cardboard system of the third exemplary embodiment.
  • Figures 10 and 11 show the two parts of a corrugated cardboard system of a fourth embodiment. These parts correspond to those of the third exemplary embodiment with the difference that in the fourth exemplary embodiment the corrugated cardboard web is not printed from above but from below. Therefore, the printing unit 4 is missing in the first part of the corrugated cardboard system of the fourth exemplary embodiment. However, there is the printing unit 26 corresponding to the first exemplary embodiment for printing on the underside of the third material web 22. Accordingly, the second part of the corrugated cardboard system of the fourth exemplary embodiment the reading devices 75, 76 are arranged underneath the corrugated cardboard web 41 in order to detect the printing patterns printed there by the printing unit 26. Otherwise, the fourth embodiment corresponds to the third embodiment.
  • the reading devices 19, 44, 70, 73, 75, 76 can also be designed as a camera, in particular as a CCD camera.
  • the reading device 19 also has the function of synchronizing the two printing units 4, 26 when a print that is exactly aligned on both sides is to take place on the corrugated cardboard web 41.
  • the reading device 19 detects the point in time at which a specific printing pattern 43 is present in the detection area of the reading device 19.
  • the job control device 7 calculates the time at which the printing unit 26 the third material web 22 has to be printed in order to print it in the exact position for printing the opposite side of the corrugated cardboard web, that is to say the top of the corrugated cardboard web 13 printed by the printing unit 4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Making Paper Articles (AREA)
  • Laminated Bodies (AREA)
EP04005758A 2003-03-21 2004-03-11 Procédé pour la fabrication des feuilles en carton ondulé Withdrawn EP1459879A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10312601A DE10312601A1 (de) 2003-03-21 2003-03-21 Material-Bahn sowie Verfahren zur Herstellung von Wellpappe
DE10312601 2003-03-21

Publications (2)

Publication Number Publication Date
EP1459879A2 true EP1459879A2 (fr) 2004-09-22
EP1459879A3 EP1459879A3 (fr) 2005-09-21

Family

ID=32798014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04005758A Withdrawn EP1459879A3 (fr) 2003-03-21 2004-03-11 Procédé pour la fabrication des feuilles en carton ondulé

Country Status (4)

Country Link
US (1) US20040182504A1 (fr)
EP (1) EP1459879A3 (fr)
CN (1) CN1532046A (fr)
DE (1) DE10312601A1 (fr)

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IT201800005172A1 (it) * 2018-05-08 2019-11-08 Un contenitore in cartone preferibilmente del tipo ondulato e con stampa digitale ad inchiostro UV

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CN1532046A (zh) 2004-09-29
DE10312601A1 (de) 2004-09-30
EP1459879A3 (fr) 2005-09-21

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