Method and equipment for producing a printing block

A printing block and equipment technology, applied in printing, printing plate preparation, welding equipment, etc., can solve the problem of not being able to produce fine and simultaneous low-level areas, and achieve the effect of good quality and precise operation

Inactive Publication Date: 2003-01-01
SCHABLONENTECHNIK KUFSTEIN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the two methods described above, fine and simultaneous low-level regions cannot be produced without further measures at relatively high working speeds

Method used

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  • Method and equipment for producing a printing block
  • Method and equipment for producing a printing block
  • Method and equipment for producing a printing block

Examples

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Embodiment Construction

[0049] The following reference figure 1 The principle of operation in the present invention is explained in more detail. exist figure 1 , reference numeral 1 designates a printing block blank produced from polymeric material. For example to produce an offset printing block, a relief is etched on the surface 2 of the printing block blank 1 by burning away areas of polymeric material on the printing block blank 1 by means of eg three focused laser beams 3, 4 and 5. More or less than three laser beams can be used. For this purpose, the laser beams 3 , 4 and 5 are continuously moved along a trajectory running on the surface 2 in the direction of the arrow 6 . The laser beam 3 is the main laser beam and first of all acts on the surface 2 of the printing block blank 1 . It is followed by the laser beam 4 following a time delay along the same track, which is likewise followed by the laser beam 5 following a time delay along the same track. Depending on the depth of a recess to b...

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PUM

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Abstract

A relief pattern is produced in the surface of a polymeric type form preform by material removal from the surface. Material is burnt away by irradiation along paths. To gain the purpose, different depths of relief area are produced along the same path by repeated irradiation along the path.

Description

technical field [0001] The invention relates to a method and a device for producing a printing block. The printing block may, for example, be an offset printing block or a rigid printing block acting as a relief printing or gravure printing block or the like. Background technique [0002] In order to resort to a conventional CO 2 The laser produces an offset printing block, which is generally known to burn material directly from a printing plate, which may be, for example, a polymer coating, in order to produce a relief in the printing plate in this way. However, during this process, the CO 2 The laser is permanently power modulated so the process is relatively slow. [0003] Furthermore, in order to generate an offset printing block, PCT / EP96 / 05277 already discloses the use of two laser beam sources, the fine structure in a desired profile is obtained with the first laser beam source, while the second laser beam Source generation is at a lower level in this profile. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/00B41B19/00B41C1/05
CPCB41C1/05B41B19/00
Inventor 约瑟夫·约芬格弗伦茨·库尔茨
Owner SCHABLONENTECHNIK KUFSTEIN GMBH
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