EP1466727A1 - Procédé pour la gravure des textes et/ou des images ainsi qu'un trame de support sur des cylindres d'impression - Google Patents

Procédé pour la gravure des textes et/ou des images ainsi qu'un trame de support sur des cylindres d'impression Download PDF

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Publication number
EP1466727A1
EP1466727A1 EP03008351A EP03008351A EP1466727A1 EP 1466727 A1 EP1466727 A1 EP 1466727A1 EP 03008351 A EP03008351 A EP 03008351A EP 03008351 A EP03008351 A EP 03008351A EP 1466727 A1 EP1466727 A1 EP 1466727A1
Authority
EP
European Patent Office
Prior art keywords
text
engraving
supporting grid
image
grid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03008351A
Other languages
German (de)
English (en)
Other versions
EP1466727B1 (fr
Inventor
Ernst Rudolf Dr. Weidlich
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.)
Hell Gravure Systems GmbH and Co KG
Original Assignee
Hell Gravure Systems GmbH and Co KG
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 Hell Gravure Systems GmbH and Co KG filed Critical Hell Gravure Systems GmbH and Co KG
Priority to EP03008351A priority Critical patent/EP1466727B1/fr
Priority to DE50310151T priority patent/DE50310151D1/de
Priority to AT03008351T priority patent/ATE401194T1/de
Priority to JP2003150831A priority patent/JP2004314583A/ja
Priority to CN03138408.0A priority patent/CN1273290C/zh
Publication of EP1466727A1 publication Critical patent/EP1466727A1/fr
Application granted granted Critical
Publication of EP1466727B1 publication Critical patent/EP1466727B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/02—Engraving; Heads therefor
    • B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal

Definitions

  • the invention relates to a method for engraving Printing cylinders for gravure printing with an electronic Engraving machine with which in addition to the engraving of texts and / or images based on text and / or image data a support grid is engraved on the impression cylinder.
  • these support grids are essential for both Engraving process for the said for gravure printing certain pressure cylinders, namely both in the case of vibration engraving as well as in the case of Line engraving.
  • a support grid is used for vibration engraving in fact as a result of the vibration engraving generates its own grid, with the vibration engraving "Cups" created the geometric dimensions determine the support grid there.
  • the between the resulting webs correspond to one Density of 0%.
  • the support grid has both the vibration engraving as well as the line engraving in principle same effects, namely to prevent the Ink runs beyond the engraving areas.
  • the support grid lies on the printing cylinder with a defined mesh size, which is constant. That means, that, for example, writing or text that has been engraved, is also traversed by the grid, i.e. at to stick to this example, also the one to be seriously scripture has a support grid, which is therefore equally would also apply to the picture. That means, that consequently also the support points of the support grid are in turn constantly spaced apart. Will be there the distance chosen small, the printability is admittedly improved, but the volume advantages diminished, especially when finely flowing, thin lettering is engraved or printed should. However, if the distance is chosen large, there is poorer printability, in particular in areas of large lettering.
  • the task is solved according to the invention in that the support grid with respect to at least its size in Dependency of text and / or image data can be set variably is.
  • the advantage of the solution according to the invention is essentially in that the support grid is now such can be flexibly adapted to the engraving data, i.e. the distance between the support points of the support grid is such selectable and can be engraved on the impression cylinder, that the supporting grid always contains the actual engraving data or images and texts in the best possible way is able to cover.
  • the supporting grid Be is advantageous, for example, to form the supporting grid Be at least in relation to their distance from each other variable depending on the text and / or image data set. This measure can be achieved even better that, for example, fine fonts of a text not be torn apart by the grid.
  • the supporting grid preferably has an arbitrarily selectable one Direction relative to the text and / or image. in principle it is possible to change the direction of the grid relative to the text and / or image to be engraved align any way you want, one for the Alignment of the grid determining parameters Type of text to be engraved or printed Picture. For certain types of text and / or images can have different orientations of the support grid to get voted.
  • the Procedure is available when large text and / or Image areas the distance between the webs of the support grid kept essentially constant from one another. In one such a case will become a static grid prefers.
  • the web spacing should, however, depend of the desired later printing process, fixed to achieve the desired print density, for example.
  • the support grid the regular square, rectangular or also has rhombic cells, other shapes but are also possible with another advantageous embodiment of the method chosen such that the course of the main axes of the support grid freely selectable relative to the text and / or the image is, but preferably selected such that a The main axis is perpendicular to the text and / or image.
  • Such a course is certain with which Support grid provided with pressure cylinder extremely useful, if in a later printing process very high printing densities should be achieved.
  • a major axis runs under a pointed one Angle to the text and / or the image, i.e. the main axes of the grid would be like a helix wrap the impression cylinder.
  • the support grid down to the edge of negative text and / or images is formed, i.e. that in this case the actual contour areas of a font or one Text but also of an image not with the support grid be occupied, with which a so-called.
  • Outlining the edge areas the writing or the picture is achieved, namely both in the case of positive and negative writing and also positive and negative image.
  • the support grid preferably in the edge area at least text and / or image different in size from that of the rest Area of the text and / or the image set is preferably achieved that fine in the area expiring areas of fonts and images Support grid does not have as great an impact as in large areas. That means in these areas the support grid has less influence on the later printing process. This can e.g. by a Change in the density of the support grid realized become.
  • the support grid at least the Contour areas of the text and / or the image completely except what is positive as well as negative Font or text may also be possible with pictures is and therefore an outlining in the marginal area of the font or the picture.
  • the depth of the engraving of the support grid indicate a certain one Amount on which a density between the Density of the surface and the density of the engraving Data corresponds. Because of this, it can be extremely beneficial be the depth of the engraving of the support grid in Dependency of for the engraving of the text and / or the Variable data provided for the image, i.e. With this measure, the density would be freely parameterizable and could follow the later printing process with the according to the invention with the support grid occupied printing cylinder be adjusted.
  • FIG. 1 shows the use of a static support grid 10 Printing cylinders in a cutout.
  • This static Support grid 10 corresponds to the support grids as they have been so far have been used in the prior art. from that there are two obvious disadvantages.
  • the support grid 10 runs into negative writing and
  • the support grid 10 is also in the case of positive fonts not optimal, cf. Right picture and left picture.
  • the actual supporting grid 10 runs here, for example, helically around the impression cylinder, in both directions. With the reference number 11 are periodically repeating webs of the grid 10 designated.
  • the support grid forms here in both examples square, approximately square fields or meshes. From Fig. 2 it is clearly visible that the support grid 10 in the immediate vicinity of the negative script, see. the picture on the right, not executed, with what Outlining the negative font is achieved. In addition is a significantly better reproduction of the negative script gem.
  • Fig. 2 by contouring compared to the corresponding Scripture of Fig. 1 visible and also a better object-related separation of positive writing gem.
  • Fig. 2 left picture, compared to the positive Scripture acc. Fig. 1, left picture.
  • the support grid 10 is gem. of the invention in relation to at least its size depending on the text and / or variable image data. This variability can affect the webs 11 forming the supporting grid 10 as well as the reference points, but also the density of the grid at any chosen location of the Printing cylinder and can also be more desired there Specifications depending on the text and / or image data be trained variably.
  • the field or mesh size of the grid 10 can over the entire Pressure cylinders of different widths, and, as seen in Fig. 2, right picture, not formed be, i.e. completely missing.
  • This in Fig. 2nd illustrated embodiment is express just as a way of aligning the main axes to watch.
  • the positions of the support grid can be so dynamic be that from letter to letter in their Arrangement to the text or image data stock and in their Distinguish between each other.
  • the support grid can be overlaid on the source database or the engraving database.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
EP03008351A 2003-04-10 2003-04-10 Procédé pour la gravure des textes et/ou des images ainsi qu'un trame de support sur des cylindres d'impression Expired - Lifetime EP1466727B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP03008351A EP1466727B1 (fr) 2003-04-10 2003-04-10 Procédé pour la gravure des textes et/ou des images ainsi qu'un trame de support sur des cylindres d'impression
DE50310151T DE50310151D1 (de) 2003-04-10 2003-04-10 Verfahren zur Gravur von Texten und/oder Bildern sowie eines Stützrasters auf Druckzylindern
AT03008351T ATE401194T1 (de) 2003-04-10 2003-04-10 Verfahren zur gravur von texten und/oder bildern sowie eines stützrasters auf druckzylindern
JP2003150831A JP2004314583A (ja) 2003-04-10 2003-05-28 電子グラビア印刷機による凹版印刷のための版胴の彫刻のための方法
CN03138408.0A CN1273290C (zh) 2003-04-10 2003-05-30 在印刷滚筒上雕刻文字和/或插图及支持网屏的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03008351A EP1466727B1 (fr) 2003-04-10 2003-04-10 Procédé pour la gravure des textes et/ou des images ainsi qu'un trame de support sur des cylindres d'impression

Publications (2)

Publication Number Publication Date
EP1466727A1 true EP1466727A1 (fr) 2004-10-13
EP1466727B1 EP1466727B1 (fr) 2008-07-16

Family

ID=32864989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03008351A Expired - Lifetime EP1466727B1 (fr) 2003-04-10 2003-04-10 Procédé pour la gravure des textes et/ou des images ainsi qu'un trame de support sur des cylindres d'impression

Country Status (5)

Country Link
EP (1) EP1466727B1 (fr)
JP (1) JP2004314583A (fr)
CN (1) CN1273290C (fr)
AT (1) ATE401194T1 (fr)
DE (1) DE50310151D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103287058A (zh) * 2012-02-24 2013-09-11 上海运青制版有限公司 一种电雕扎边工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10116250A1 (de) * 2001-03-31 2002-10-24 Heidelberger Druckmasch Ag Verfahren zur Durchführung einer Liniengravur für den Tiefdruck
DE10132599A1 (de) * 2001-07-05 2003-01-23 Heidelberger Druckmasch Ag Verfahren zur Signalverarbeitung von Gravurdaten

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10116250A1 (de) * 2001-03-31 2002-10-24 Heidelberger Druckmasch Ag Verfahren zur Durchführung einer Liniengravur für den Tiefdruck
DE10132599A1 (de) * 2001-07-05 2003-01-23 Heidelberger Druckmasch Ag Verfahren zur Signalverarbeitung von Gravurdaten

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103287058A (zh) * 2012-02-24 2013-09-11 上海运青制版有限公司 一种电雕扎边工艺
CN103287058B (zh) * 2012-02-24 2015-03-04 上海运青制版有限公司 一种电雕扎边工艺

Also Published As

Publication number Publication date
CN1273290C (zh) 2006-09-06
ATE401194T1 (de) 2008-08-15
JP2004314583A (ja) 2004-11-11
DE50310151D1 (de) 2008-08-28
CN1535817A (zh) 2004-10-13
EP1466727B1 (fr) 2008-07-16

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