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Printing forme for offset printing with the aid of a dampening medium

A technology of offset printing and printing plate, applied in the general parts of printing machinery, printing, printing presses, etc., can solve the problems of high cost and time-consuming, and achieve the effect of simple manufacturing inspection area

Inactive Publication Date: 2017-03-01
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage here is the relatively high outlay due to the large number of necessary process steps required for coating the amphiphilic molecules
Including coating also requires at least 5 process steps, which is quite time consuming

Method used

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  • Printing forme for offset printing with the aid of a dampening medium
  • Printing forme for offset printing with the aid of a dampening medium
  • Printing forme for offset printing with the aid of a dampening medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] figure 1 A printing form 1 is shown which is stretched on a printing form cylinder 2 of an offset printing press. It shows a cross section of the printing plate 1 in the region of the inspection zone 3 . The printing form 1 has a printing form thickness a of approximately 0.3 mm. The inspection field is designed as a protrusion and projects beyond the outer surface of the printing plate 1 by an inspection field height b of approximately 0.1 mm. The inspection zone 3 can be located inside or outside the printed image area of ​​the printing plate 1 . For example, it can be located in an edge without a printed image, which is also where the color measuring strip is located. The surface of the inspection zone 3 is preferably exactly like the surface of the non-printed area of ​​the printed image in terms of its material properties.

[0026] The inspection zone 3 is an elevation which is produced by embossing the printing plate 1 from the rear side of the printing plate ...

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PUM

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Abstract

The push plate (1) has damp unit with control panel (3) for detecting the boundary lubrication. The control panel is manufactured by stamping the push plate. The control panel is formed as projection of 0.01-0.3 mm on top face or outer side of the push plate. A recess (4) is formed below the projection, and is filled with liner (5) for supporting the projection. An independent claim is included for method for manufacturing push plate.

Description

technical field [0001] The invention relates to a printing form for offset printing with the aid of a dampening medium, which comprises an inspection field for detecting a smudging boundary. Background technique [0002] Offset printing plates for lithographic or planographic printing are configured during their patterning into printing and non-printing areas (image areas and non-image areas), wherein the printing area guides printing ink and the non-printing area guides printing ink. Wetting medium. During a printing run, the printing form is loaded with a dampening medium which condenses on the non-printing areas and moistens them. The printing forme is then inked with printing ink, wherein the printing forme only receives printing ink at the locations that were not wetted by the dampening medium. Since the reason why the plate guides the dampening medium is to ink the plate only in the printing zone, regulating and monitoring the dampening medium delivery is a critical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41C1/10B41F33/10
CPCB41F22/00B41F33/0054B41M1/06
Inventor A·豪克M·施勒霍尔茨
Owner HEIDELBERGER DRUCKMASCHINEN AG