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Method for cleaning printing plates

A printing machine and printing ink technology, which is applied to the general parts of printing machinery, printing machines, printing, etc., and can solve the problem of dirty printing plate replacement parts

Active Publication Date: 2012-08-08
MAN ROLAND MASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

where plate replacement parts can become soiled

Method used

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Examples

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Effect test

Embodiment Construction

[0027] The embodiments of the present invention will be described in detail below, but are not limited to this embodiment.

[0028] The printing machine has a paper feeder, and each has at least one inking mechanism in the area of ​​the printing mechanism, and a paper delivery device connected in series behind the printing mechanism. Usually multiple printing units are connected in series. The printed sheets to be printed move through the printing press through a plurality of printed sheet conveying cylinders, of which several sheet conveying cylinders are designed as conveying cylinders, and the others are designed as back pressure cylinders. In the area of ​​the inking unit, the transfer cylinder or the printing cloth cylinder rolls on the back pressure cylinder. This printing cloth cylinder in turn interacts with a plate cylinder or plate cylinder supporting at least one printing plate. Each printing plate positioned on the printing plate cylinder is coated with printing ink...

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PUM

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Abstract

The invention relates to an inking unit of a printing press, comprising an ink distribution system with an inking roller and a printing cylinder having at least one print form, wherein the inking roller transmits the ink arriving thereon to the or each print form positioned on the printing cylinder, the printing ink being transmitted from the print form to a print sheet transported between the form cylinder and a counter cylinder and the inking roller may be adjusted relative to the form cylinder.; According to the invention the engagement and / or disengagement of the inking roller with relation to the form cylinder and / or the engagement and / or disengagement of the print blanket cylinder or form cylinder with relation to the counter cylinder may be carried out such that the print sheet maybe printed in a print position with disengaged ink supply by means of a residual ink image using the residual ink remaining on the plate cylinder or the print blanket cylinder.

Description

Technical field [0001] The invention relates to an inking mechanism of a printing press. [0002] In addition, the present invention also relates to a method of operating an inking mechanism in a printing press. Background technique [0003] During printing, the printing material moves through a plurality of printing units, wherein in each printing unit, a part of the printing image is applied to the printing material. In color overprinting, the printing material usually has to move through at least four printing mechanisms in order to print some parts of the printed image on the printing material in black, blue, red, and yellow calibration colors. In other printing presses, special colors can be used to print part of the printed image on the substrate. Finally, one or more coatings for producing a protective effect, for producing a structure or for producing a gloss or matte effect can be applied to the printed image thus produced. [0004] In order to minimize the thickness of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F33/10B41F35/02
CPCB41F35/02B41P2235/10B41F33/10B41P2233/00
Inventor G·奥格斯伯格U·琼格J·肖尔兹格L·西蒙
Owner MAN ROLAND MASCHINEN AG
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