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Filtration for printing presses

A technology for printing presses and dampening fluids, applied to printing presses, general parts of printing machinery, rotary printing presses, etc., capable of solving health and environmental hazards and other issues

Inactive Publication Date: 2010-06-23
TECHNOTRANS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Technological improvements regarding the supply of dampening fluid to printing presses are not over yet
[0009] On the other hand, the use of dampening solutions with an alcohol content is a problem in the printing industry, especially in offset printing, because this additive poses a health and environmental hazard

Method used

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  • Filtration for printing presses
  • Filtration for printing presses
  • Filtration for printing presses

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0038] figure 1 is a schematic diagram of a preferred first embodiment of the wetting fluid circuit according to the invention.

[0039] A main wetting fluid reservoir 3 is shown, in which a quantity of reserve wetting fluid is provided, via a pump (not shown in detail) via a wetting fluid supply 4 Supply the wetting liquid to the wetting unit 2. figure 1 Four printing towers are schematically shown in , each printing tower comprising at least one dampening unit 2 .

[0040] Excess wetting liquid is collected in the wetting unit 2 and drawn out from each wetting unit via various lines. The individual volume streams join downstream in the wetting fluid return device 5 to form the wetting fluid main flow F H . The wetting fluid return device 5 may include various components such as pipes, sumps, and the like.

[0041] exist figure 1 In the preferred embodiment shown, the first part of the wetting fluid return device 5 leads into the cleaning branch 6, so that the entire...

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PUM

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Abstract

The invention relates to a dampening-solution circuit (1) for a printing press and to a printing press having a dampening-solution circuit (1) of this type, wherein the dampening-solution circuit (1) has a dampening unit (2), a dampening-solution main container (3), a dampening-solution supply means (4) and a dampening-solution return line (5), wherein the dampening-solution supply means (4) is arranged between the dampening-solution main container (3) and the dampening unit (2) in such a way that dampening solution can be supplied to the dampening unit (2) from the dampening-solution main container (3) via the dampening-solution supply means (4), wherein the dampening-solution return line (5) is arranged between the dampening unit (2) and the dampening-solution main container (3) in such a way that dampening solution can be returned from the dampening unit (2) via the dampening-solution return line (5) into the dampening-solution supply means (4), wherein a cleaning branch (6) having a dampening-solution cleaning apparatus (7) is provided in the region of the dampening-solution return line (5), which cleaning branch (6) is designed in such a way that, during operation of the dampening-solution circuit (1) from a dampening-solution main flow (FH), a first dampening-solution part flow (FT1) can be guided out of the dampening-solution main flow (FH) through the dampening-solution cleaning apparatus (7), and wherein the cleaning branch (6) is connected to the dampening-solution circuit (1) in such a way that the dampening solution which is cleaned in the dampening-solution cleaning apparatus (7) can be returned into the dampening-solution supply means (4).

Description

technical field [0001] The invention relates to a dampening fluid circuit for a printing press and to a printing press having such a dampening fluid circuit. Background technique [0002] In the prior art dampening units are used in offset printing presses. The purpose of the dampening unit is to apply dampening fluid evenly on the printing plates of the offset printing press. Here, the dampening liquid is applied to the first roller, for example by means of a dampening bucket, nozzles or the like. The water film is applied by the rollers - usually by means of various other rollers - to the printing plates of the printing press as evenly as possible. [0003] Excess wetting fluid is typically captured, reprocessed and recycled to the wetting unit. [0004] Since the dampening fluid can be contaminated during operation by, for example, pigment components and paper dust, dirty dampening fluids are usually cleaned, for example by means of filter systems. [0005] DE 100 61 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F7/32B41F33/00
CPCB41F33/0054B41P2235/31B41F7/32
Inventor 迪耶特格·海斯卡姆博
Owner TECHNOTRANS