CN102205695B - Ink pre-adjusting of subsequent task - Google Patents
Ink pre-adjusting of subsequent task Download PDFInfo
- Publication number
- CN102205695B CN102205695B CN201110064124.2A CN201110064124A CN102205695B CN 102205695 B CN102205695 B CN 102205695B CN 201110064124 A CN201110064124 A CN 201110064124A CN 102205695 B CN102205695 B CN 102205695B
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- China
- Prior art keywords
- ink
- print job
- covered area
- original
- task
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/04—Tripping devices or stop-motions
- B41F33/10—Tripping devices or stop-motions for starting or stopping operation of damping or inking units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2233/00—Arrangements for the operation of printing presses
- B41P2233/10—Starting-up the machine
- B41P2233/11—Pre-inking
Abstract
An Ink pre-adjusting of a subsequent task. The invention relates to a method of adjusting the color in a printer 1. The printer has at least ink transporting device 16 and a control computer 5 for adjusting a value (FD original, FZ original) of the color of the prior print task and storing in the control computer. The invention is characterized by firstly comparing the color data of the prior print task with the data of the prior print task, calculating a print task which is similar as much as possible, and computer calculating the adjusting value (FZ new, dFZ) of the color of the prior print task based on the value (FD original, FZ original) of the selected similar prior print task.
Description
Technical field
The present invention relates to that a kind of described printing machine has at least one inking device and computer for controlling for regulating the method for color matching in printing machine, the value for the color matching regulating previous prints task is stored in described computer for controlling.
Background technology
If need to process new print job in offset press, the color matching in the inking device must be regulated according to this new print job.At this, so-called ink preconditioning is carried out when new print job starts, when this ink preconditioning, each printing-ink to be used is opened to the regional ink measuring element in the single inking device of printing machine in polychrome printing according to described ink preconditioning.This method is such as open by German laid-open document DE 101 52 470 A1.In the process, the ink preconditioning value for the ink-covered area opening in the metering device for paint of the inking device draws by for the ink strip width in the rated value of panchromatic tune printing-ink grammes per square metre, zonal coverage rate product value and the inking device.At this, for often kind of ink to be printed, particularly indicatrix is set up to carry out ink-covered area preconditioning according to required ink film thickness for special ink.Ink preconditioning indicatrix can such as be tried to achieve by inking device simulation by analysis mode or empirically try to achieve by means of printing test.Ink preconditioning is selected in principle like this, makes printing machine can carry out as far as possible rapidly continuing printing and occur the least possible maculature within the described time.
The large shortcoming that method has disclosed in DE 101 52 470 A1 is, ink preconditioning is only recalculated by means of ongoing print job at every turn.Therefore the distinctive deviation of printing machine (its characteristic due to printing machine always occurs and causes the deviation with the color matching expected) of the result of described ink preconditioning and expectation must all redefine and consider if desired at every turn.
Summary of the invention
Therefore task of the present invention is, provides a kind of for regulating the method for color matching in printing machine, wherein, particularly considers the distinctive characteristic of printing machine when setting up the ink preconditioning being used for new print job.
According to the present invention, described task is solved by the present invention.Advantageous configuration of the present invention is described by other and accompanying drawing draws.Method of the present invention is particularly suitable for regulating color matching in the offset press with the regional inking device, and the described regional inking device particularly uses in page offset press.The regional inking device is formed like this, that is, whole stock width arranges multiple ink-covered area, wherein, there is an ink-covered area sliding component for each ink-covered area, utilizes described ink-covered area sliding component can measure quantity of ink in corresponding ink-covered area.The opening and closing of the ink sliding component in the inking device are undertaken by motor, thus also can carry out full automatic ink adjustment by the computer for controlling of printing machine.According to the present invention, store the regulated value of previous prints task in the computer for controlling of printing machine, described previous prints task is carried out on same printing machine.Described regulated value is preferably for ink-covered area opening value and the coverage rate product value that is affiliated, previous prints task of the sliding component of single ink-covered area.At this, in each printing equipment of offset press, there is the inking device with corresponding ink-covered area, thus the ink that often kind of printing-ink in each ink-covered area can carry out expecting is measured.
Propose according to the present invention, first the data of the color matching data of current print job and previous prints task compared and try to achieve print job similar as far as possible in described computer, described computer based calculates the regulated value of the color matching for current print job in the value of selected similar previous prints task.Described method consists essentially of two levels thus, first view data thus the color matching of current print job and previous print job to be compared (described previous print job is run on this machine and is stored in described computer for controlling).Adjust the regulated value of the ink-covered area in the inking device according to the similarity of previous prints task and current print job by means of the data of previous prints task, thus the feature of printing machine can be considered.What belong to the distinctive feature of printing machine is such as ink fountain adjustment or analog.Even if in this way with method when regulating current print job the also deviation (described deviation was correspondingly corrected in previous tasks) that causes of calibrating printer immediately, thus in current print job can from the experience in past income.Up to now, the adaptation that this deviation is manually regulated by the ink-covered area undertaken by printing worker corrects.Even if in this way and method can when similar and not only in identical print job realize between printed original and the stock of production good color consistency, and need not when each new printing learning characteristic curve.The quantity of indicatrix is significantly reduced in this way, because no longer need bothersome storage with method.Described method is special to be run when special ink prints well and avoids unwanted maculature there.In addition propose, replace finding previously similar print job ground, operating personnel select previous print job or use the task of most end one-step print.
Propose in the first configuration of the present invention, the inking device has ink-covered area and each ink-covered area at least one inking device adjusts ink-covered area regulated value.This zonal inking device has multiple ink-covered area on the whole width of stock, and described ink-covered area all must regulate according to the color matching of current print job.According to the present invention, this utilizes ink preconditioning indicatrix or previous prints task and realizes the comparing of ink-covered area opening value of current print job, wherein, carries out the ink-covered area regulated value for making ink-covered area open for each single ink-covered area.Alternatively also it is possible that, by two or more ink-covered areas merge and only for merge after ink-covered area use average ink-covered area preconditioning indicatrix respectively.But this will cause ink to measure coarse result, but be reduction of calculating and expend.
Propose in another configuration of the present invention, described computer calculates by means of the difference of the coverage rate product value between previous prints task and current print job and in the inking device, adjusts the preregulated difference in ink-covered area of ink-covered area opening and previous similar print job.Similarity in this comparative approach between first more current print job and previous prints task in color matching and thus try to achieve the amount of similar print job.Similarity boundary is provided in advance by the setting of the control software design in the computer for controlling of printing machine.Only consider very similar print job to calculate the setting of the ink-covered area opening for current print job.Thus affect ink-covered area negatively and regulate in preventing with method the ink-covered area opening bringing current print job into the very large old print job of current print job difference to calculate in this way.In this case also by the similarity of following manner determination print job, that is, in color matching, mutual comparative figures printing prepares data and correspondingly detects the color distortion between print job.The old print job only color distortion and current print job not being exceeded the tolerance of permission is selected as similar print job and is used to try to achieve the regulated value for current print job.When task is very similar, simply the difference of the area coverage between old print job and new print job is applied to the ink-covered area value of described old task and thus calculates and in the inking device, adjust the difference of ink-covered area opening and previous prints task.
Propose in another configuration of the present invention, described computer calculates an indicatrix when not too similar previous prints task based on the value of described not too similar previous prints task and utilizes described indicatrix to calculate the regulated value of the ink-covered area opening of current print job.Propose at this, by described regulated value as the area coverage of previous prints task and ink-covered area opening current print job calculated for the preregulated temporal aspect curve of ink by interpolation method and/or extrapolation and as described in computer by as described in temporal aspect opisometer calculate opening for each ink-covered area.In the method, by each value of preregulated for ink previous prints task compared with the value of current print job, try to achieve corresponding difference and then lay new temporal aspect curve by the point after correction and use it for current print job.
In addition advantageously propose, described computer is calculated the regulated value of ink-covered area opening for current print job by current coverage rate product value by means of the indicatrix of the storage of described not too similar previous prints task.The large advantage of described way calls the indicatrix of described previous tasks when the difference between previous print job and current print job in color matching is too large.Avoidable with method in this way, the change in the color matching starting current print job when the color distortion between current print job and old print job is too large and thus occur the less desirable color distortion with the printed original of current print job.
Proposing in another configuration of the present invention, when still not too similar previous prints task, being averaged by the indicatrix of multiple previous prints task when calculating.In this case, the indicatrix of multiple previous tasks by average, thus makes deviate not be so work consumingly.
In order to call the data of previous prints task, have large advantage, the computer for controlling of printing machine calls printing and prepares, and usually stores the data for print job in described printing prepares.What prepares with printing is describedly connected such as by printing house's network system or realized by internet, if printing preparation and printing house separate on place.The present invention not only can be used for page offset press but also can be used for web press.
Accompanying drawing explanation
Describe in detail by means of multiple accompanying drawing below and set forth the present invention.In accompanying drawing:
Fig. 1 is page offset press,
Fig. 2 is decision-making technique, which kind of degree to consider the ink-covered area opening of previous prints task to,
Fig. 3 is the adaptation of carrying out current ink preconditioning value based on the ink-covered area opening of previous prints task,
Fig. 4 carries out ink preconditioning by interpolation method or extrapolation based on temporal aspect curve,
Fig. 5 is the temporal aspect curve using corresponding previous prints task,
Fig. 6 calculates ink preconditioning based on multiple previous print job.
Detailed description of the invention
Fig. 1 illustrates the page offset press 1 with two printing equipments 3,4, and described page offset press has page automatic sheet feeder 2 and page paper receiver 6.Stack 8 from automatic sheet feeder in described automatic sheet feeder 2 and take out printed pages 9 and flow to the first printing equipment 3 with being divided into individual.In the first printing equipment 3, printed by with the first color separation in the printing gap of printed pages between impression cylinder 21 and blanket cylinder 20.Printed pages 9 is carried between described first printing equipment 3 and the second printing equipment 4 by means of conveying cylinder 14.In the second printing equipment 4, in the printing gap of printed pages 9 again between impression cylinder 10 and blanket cylinder 13, be then transferred to described paper receiver 6 with the second color separation printing.In paper receiver 6, the printed pages 9 completed is placed on paper receiver and stacks on 7 and to be available for further process.Described printing equipment 3,4 can be formed in the same manner in principle, wherein, these two printing equipments 3,4 also have plate cylinder 11,12 except described impression cylinder 10,21 and blanket cylinder 13,20, and described plate cylinder carrying has the forme of corresponding color separation.
The painted of forme on plate cylinder 11,12 is realized by the inking device 16,17 in described two printing equipments 3,4.Described two inking devices 16,17 have zonal metering device, thus there is multiple ink-covered area on the whole width of page 9, differently can regulate color matching in described ink-covered area.In addition, in each printing equipment 3,4, settle damping device 18,19, the characteristic of printing-ink can be affected by described damping device.Whole printing machine and being controlled by computer for controlling 5 for the servo motor of the inking device 16,17 with ink-covered area opening, described computer for controlling is connected to a color measurement instrument 22 in addition, utilizes described color measurement instrument can measure paper receiver in color and stack finished product stock 9 on 7.If the misalignment between printed original and measured page 9 is too large, then correspondingly must adjust the metering device for paint in the inking device 16,17 again.Computer for controlling 5 carries out described ink adjustment.Specify in principle, computer for controlling 5 has storage area, and in described storage area, store the ink preconditioning value of the single ink-covered area being used for the inking device 16,17, it is the form of ink preconditioning indicatrix.At the ink-covered area opening FZ for current print job
newlybefore being conditioned, first in computer 5, current print job and previous print job are compared in color matching.
The analysis of described current print job shown in Figure 2.If find the print job very similar with current print job, then according to the ink-covered area opening value FZ of Fig. 3 by previous print job
former beginadaptation calculate and be used for the ink-covered area opening FZ of current print job
newly.If do not have to find very similar print job, then in computer for controlling 5, check whether conscientiously there is multiple print job in the next step.If not this situation, then calculate ink-covered area opening FZ for current print job according to Figure 4 and 5 only by calculating interim indicatrix
newly.If but there is multiple print job, be then used for the preregulated indicatrix of ink based on the study of these print job and indicatrix based on described study calculates and in the inking device 16,17, adjusts the ink-covered area opening FZ of current print job
newly.
When carrying out ink-covered area calculating according to Fig. 3 by adaptation, use the area coverage of previous prints task
fD
originalink preconditioning value.Described ink preconditioning value is by the area coverage FD with current task
newlycompare and try to achieve poor dFD.Calculate corresponding preconditioning indicatrix VEKL accordingly.Then by configuring to the preconditioning indicatrix VEKL of corresponding ink for the poor dFD of each ink-covered area based on described area coverage
newlycalculate ink-covered area difference dFZ.Then the ink-covered area preconditioning FZ of described ink-covered area difference dFZ and previous prints task
originalbe added, thus finally regulate the ink-covered area preconditioning FZ made new advances
newly.
Use the ink preconditioning value FD of not too similar old print job in the diagram
original.In this case by the value FD existed
originaland FZ
originalby one by one first linear interpolation and extrapolation calculate for ink preregulated temporal aspect curve VEKL.Then described new temporal aspect curve VEKL is used to calculate ink-covered area FZ
newly.
As the alternative to the method in Fig. 4, described interim indicatrix VEKL when the difference of the color matching aspect between old print job and current print job is very large, directly can be used.In this case, in Figure 5 described new temporal aspect curve VEKL almost only based on the value FD of ancestral task
original.Then utilize described new temporal aspect curve VEKL by the area coverage FD of current print job
newlybe scaled ink-covered area opening FZ and thus obtain the ink preconditioning FZ of current print job
newly.
According in the method for Fig. 6, there is multiple previous print job, they show difference.With being similar to the method in Fig. 5 in this case by the area coverage FD of previous tasks
original 1, FD
former begin 2, FD
original 3and FD
original 4calculate corresponding indicatrix VEKL and distribute to corresponding ink.Then, these are utilized to revise the area coverage DF of current print job for the indicatrix VEKL that corresponding ink regulates
newlyand thus calculate the ink-covered area opening FZ of current print job
newly.In this way, the study right of new feature curve VEKL is coequally by previous prints task and area coverage FD thereof
original 1, FD
original 2, FD
original 3and FD
original 4data carry out.
Can ensure with method in this way, the ink-covered area opening FZ of current print job
newlycalculating not only carry out and avoid the adjustment because the difference between current print job and previous prints task causes too greatly when considering printing machine characteristic but also when considering the possible difference of previous prints task and current print job.
Reference number table
1 printing machine
2 automatic sheet feeders
3 first printing equipments
4 second printing equipments
5 computer for controlling
6 paper receivers
7 paper receivers stack
8 automatic sheet feeders stack
9 pages
10,21 impression cylinders
11,12 plate cylinders
13,20 blanket cylinders
14 conveying cylinders
16,17 inking devices
18,19 damping devices
22 color measurement instruments
FZ ink-covered area opening
The difference of the ink-covered area opening between the old print job of dFZ and new print job
FD area coverage
VEKL preconditioning indicatrix
D is poor
FD
originalthe area coverage of old print job
FD
newlythe area coverage of current print job
FZ
originalthe ink-covered area opening of old print job
FZ
newlythe ink-covered area opening of current print job
Claims (8)
1., for regulating the method for color matching in printing machine (1), described printing machine has at least one inking device (16) and computer for controlling (5), for regulating the area coverage (FD of the color matching of previous prints task
original) and ink-covered area opening (FZ
original) be stored in described computer for controlling, it is characterized in that, first the data of the color matching data of current print job and previous prints task compared and try to achieve previous prints task similar as far as possible in described computer (5), described computer (5) is based on the area coverage (FD of previous prints task similar as far as possible described in tried to achieve
original) and ink-covered area opening (FZ
original) calculate the new ink-covered area opening (FZ of the color matching for current print job
newly) and ink-covered area difference (dFZ).
2. method according to claim 1, is characterized in that, the described inking device (16) has ink-covered area, and the single ink-covered area for described at least one inking device (16) regulates the ink-covered area opening (FZ that makes new advances
newly).
3. method according to claim 1 and 2, is characterized in that, described computer (5) is by means of the area coverage (FD of previous prints task
original) with the area coverage (FD of current print job
newly) between difference calculate and in the inking device (16,17), adjust the ink-covered area opening (FZ of ink-covered area opening and previous similar print job
original) difference (dFZ).
4. method according to claim 1 and 2, is characterized in that, described computer (5) when not too similar previous prints task based on the area coverage (FD of described not too similar previous prints task
original) and ink-covered area opening (FZ
original) calculate an indicatrix (VEKL) and utilize described indicatrix (VEKL) to calculate the new ink-covered area opening (FZ of current print job
newly).
5. method according to claim 1, it is characterized in that, described computer (5) when not too similar previous prints task by means of the indicatrix (VEKL) of the storage of described not too similar previous prints task by current area coverage (FD
newly) current print job calculated and in the inking device (16,17), adjusts the new ink-covered area opening (FZ of current print job
newly).
6. method according to claim 5, is characterized in that, when not too similar previous prints task, is averaged by the indicatrix of multiple previous prints task when calculating.
7. method according to claim 1 and 2, is characterized in that, described computer (5) replaces with trying to achieve similar previous prints task based on the area coverage (FD of the print job of the last use
original) and ink-covered area opening (FZ
original) calculate the new ink-covered area opening (FZ of the color matching for current print job
newly) and ink-covered area difference (dFZ).
8. method according to claim 1 and 2, it is characterized in that, described computer (5) be arranged for replace manually selecting one or more print job by operating personnel via operating means with trying to achieve similar previous prints task and described computer (5) based on the area coverage (FD of the described print job manually selected
original) and ink-covered area opening (FZ
original) calculate the new ink-covered area opening (FZ of the color matching for current print job
newly) and ink-covered area difference (dFZ).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010012507.5 | 2010-03-24 | ||
| DE102010012507 | 2010-03-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102205695A CN102205695A (en) | 2011-10-05 |
| CN102205695B true CN102205695B (en) | 2015-07-01 |
Family
ID=44586238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110064124.2A Active CN102205695B (en) | 2010-03-24 | 2011-03-15 | Ink pre-adjusting of subsequent task |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102205695B (en) |
| DE (1) | DE102011012289A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013016448A1 (en) * | 2012-10-26 | 2014-04-30 | Heidelberger Druckmaschinen Ag | Method for execution of adjustments in printing machine by processor, involves calculating new characteristic curve from substitute characteristic curve and measuring values, where adjustments take place based on new characteristic curve |
| DE102014220361A1 (en) * | 2013-10-25 | 2015-04-30 | Heidelberger Druckmaschinen Aktiengesellschaft | Proof quality control |
| DE102016217075A1 (en) * | 2015-10-06 | 2017-04-06 | Heidelberger Druckmaschinen Ag | Method for creating a preset characteristic |
| CN105882140B (en) * | 2016-06-06 | 2018-08-07 | 桑春龙 | Ink colors automatic governing equipment |
| CN106864029A (en) * | 2017-02-14 | 2017-06-20 | 东莞金杯印刷有限公司 | A kind of presetting method of intelligent ink |
| DE102021112243B3 (en) * | 2021-05-11 | 2022-05-19 | Heidelberger Druckmaschinen Aktiengesellschaft | Method for printing at least two print jobs with a printing machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4139012B2 (en) * | 1999-09-06 | 2008-08-27 | 株式会社小森コーポレーション | Method and apparatus for adjusting ink supply amount of printing press |
| JP4197379B2 (en) * | 1999-09-07 | 2008-12-17 | 株式会社小森コーポレーション | Ink supply amount adjustment method and apparatus for multicolor printing machine |
| JP2001191494A (en) * | 1999-12-08 | 2001-07-17 | Heidelberger Druckmas Ag | Method for operating printer |
| DE10152470B4 (en) * | 2000-11-23 | 2014-08-14 | Heidelberger Druckmaschinen Ag | Method for color presetting in multicolor printing |
| DE10245702A1 (en) * | 2001-10-25 | 2003-05-08 | Heidelberger Druckmasch Ag | Method for matching ink supply of a printer to the physical characteristics of the ink being used, whereby a computer print control model is used that incorporates the physical properties of the ink being used |
| JP2006082552A (en) * | 2004-09-13 | 2006-03-30 | Heidelberger Druckmas Ag | Optimized pre-inking prior to start of printing |
| DE102008013744A1 (en) * | 2007-04-02 | 2008-10-09 | Heidelberger Druckmaschinen Ag | Improved characteristic learning in printing presses |
| DE102009033905A1 (en) * | 2008-08-22 | 2010-02-25 | Heidelberger Druckmaschinen Ag | Inking and dampening analysis |
-
2011
- 2011-02-24 DE DE201110012289 patent/DE102011012289A1/en active Pending
- 2011-03-15 CN CN201110064124.2A patent/CN102205695B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102205695A (en) | 2011-10-05 |
| DE102011012289A1 (en) | 2011-09-29 |
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