Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for mixing colors between two successive print jobs

A task, temporary technology, applied in the direction of general parts of printing machinery, printing, printing presses, etc.

Active Publication Date: 2012-10-31
海德堡印刷机械知识产权股份两合公司
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This has the result that, when the setpoint value of the ink quantity changes while the printing press is running, an increased ink quantity is briefly supplied to the inking unit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for mixing colors between two successive print jobs
  • Method for mixing colors between two successive print jobs
  • Method for mixing colors between two successive print jobs

Examples

Experimental program
Comparison scheme
Effect test

example

[0019] An example is:

[0020] For the first printing task, the area overlap ratio FD of the ink zone / Farbzone is 80%.

[0021] For the second printing task, the surface overlap rate FD of the same ink area is 40%.

[0022] From image 3 The following values ​​can be read in the table:

[0023] Ink volume 40%FD=1.2; ink volume 40%FD=1.1

[0024] Therefore, for the second printing task, an over-inking of 1.2 / 1.1=1.09 is obtained when the printing task is changed. In other words, 9% of the ink volume must be removed from the ink zone when the second printing task is started. According to the prior art, this is done by said toning.

[0025] Other solutions are also possible:

[0026] The ink can be supplied before printing or taken out when necessary. Ink areas that require more ink at the start of the first printing task can obtain these inks before the first printing, for example by means of ink entry 2. That is, for these ink areas, there is no need for toning during printing and the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for mixing colors between two successive print jobs, particularly to a method for controlling the ink amount in an ink-conveying unit of the printing machine (1) by controlling a computer. During the printing operation period, the supplied amount of the ink is temporarily raised compared to the conventional required amount. The invention is characterized in that: the color differences between two successive print jobs are calculated by a control computer and the amount of ink supplied to inking unit of the printing machine is equalized based on color differences between the print jobs, thus to adjust the color difference.

Description

Technical field [0001] The present invention relates to a method for controlling the amount of ink using a control computer in an ink zone type inking device of a printing press, wherein the supply of the ink amount is temporarily increased during printing operation compared with the conventional demand. Background technique [0002] The publication DE 100 56 247 A1 discloses such a method for controlling the amount of ink in a printing press. This relates to a method for controlling the amount of ink in different ink zones of the inking device of a printing press, wherein the amount of ink is quickly adjusted in different ink zones (Farbzonen), wherein adjacent ink zones are also exhausted. It is possible to quickly achieve its stable ink volume. This is achieved in the following way, that is, in the different ink zones of the printing press, a nominal value of the ink amount is preset for each ink zone depending on time; so that the value of the ink flow output by the ink sour...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B41F33/10
CPCB41F33/0045B41P2233/11B41F31/045
Inventor N・普法伊费尔P・埃尔特
Owner 海德堡印刷机械知识产权股份两合公司