CN102205695A - Ink pre-adjusting of subsequent task - Google Patents
Ink pre-adjusting of subsequent task Download PDFInfo
- Publication number
- CN102205695A CN102205695A CN2011100641242A CN201110064124A CN102205695A CN 102205695 A CN102205695 A CN 102205695A CN 2011100641242 A CN2011100641242 A CN 2011100641242A CN 201110064124 A CN201110064124 A CN 201110064124A CN 102205695 A CN102205695 A CN 102205695A
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- print job
- ink
- original
- value
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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
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- Inking, Control Or Cleaning Of Printing Machines (AREA)
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 a kind of method that is used for regulating at printing machine color matching, described printing machine has at least one inking device and control computer, and the value that is used for regulating the color matching of previous print job is stored in described control computer.
Background technology
If in offset press, need to handle new print job, must be according to the color matching in this new print job adjusting inking device.At this, when beginning, new print job carries out so-called printing ink preconditioning, when this printing ink preconditioning, in polychrome printing, open regional printing ink measuring element in the single inking device of printing machine according to described printing ink preconditioning for each printing-ink to be used.This method is for example open by German laid-open document DE 101 52 470 A1.In described method, the printing ink preconditioning value of ink-covered area opening that is used for the metering device for paint of the inking device is drawn by the ink strip width of the rated value that is used for panchromatic accent printing-ink grammes per square metre, zonal area coverage value and the inking device.At this, for every kind of printing ink to be printed, particularly set up indicatrix to carry out ink-covered area preconditioning according to required ink film thickness for special ink.Printing ink preconditioning indicatrix can for example be tried to achieve by inking device simulation or try to achieve by means of the printing test according to experience by analysis mode.Printing ink preconditioning is selected in principle like this, makes printing machine can continue as far as possible apace to print and the least possible maculature of appearance in the described time.
The big shortcoming that is had by DE 101 52 470 A1 disclosed methods is that printing ink preconditioning is only recomputated by means of ongoing print job at every turn.The result's of described printing ink preconditioning and expectation the distinctive deviation of printing machine (itself because characteristic of printing machine always occur and cause deviation with the color matching of expect) so must at every turn all redefine and consideration in case of necessity.
Summary of the invention
Therefore task of the present invention is, a kind of method that is used for regulating at printing machine color matching is provided, and wherein, particularly considers the distinctive characteristic of printing machine when foundation is used for the printing ink preconditioning of new print job.
According to the present invention, described task solves by claim 1.Favourable configuration of the present invention is drawn by dependent claims and accompanying drawing.Method of the present invention particularly is suitable for regulating color matching in having the offset press of the regional inking device, and the described regional inking device is particularly opened in the offset press at page or leaf and used.The regional inking device constitutes like this,, on whole stock width a plurality of ink-covered areas is set that is, wherein, has an ink-covered area sliding component for each ink-covered area, utilizes described ink-covered area sliding component can measure quantity of ink in the corresponding ink-covered area.The opening and closing of the printing ink sliding component in the inking device can be undertaken by motor, thereby also can carry out full automatic printing ink adjustment by the control computer of printing machine.According to the present invention, the regulated value of the previous print job of storage in the control computer of printing machine, described previous print job is carried out on same printing machine.Described regulated value preferably is used for the ink-covered area opening value and the area coverage value affiliated, previous print job of the sliding component of single ink-covered area.At this, in each printing equipment of offset press, there is the inking device, thereby measures for the printing ink that every kind of printing-ink in each ink-covered area can be expected with corresponding ink-covered area.
Propose according to the present invention, at first the color matching data of current print job and the data of previous print job are compared and try to achieve as far as possible similarly print job in described computer, described computer based calculates the regulated value of the color matching that is used for current print job in the value of selected similarly previous print job.Described thus method consists essentially of two levels, thereby at first compares (described previous print job is moved and is stored in the described control computer) with view data and with the color matching of current print job and previous print job on this machine.Adjust the regulated value of the ink-covered area in the inking device according to the similarity of previous print job and current print job by means of the data of previous print job, thereby can consider the characteristics of printing machine.What belong to the distinctive characteristics of printing machine for example is ink fountain adjustment or analog.Even when regulating current print job, also proofread and correct the deviation (described deviation formerly correspondingly was corrected in the task) that printing machine causes with method immediately in this way, thus can be from the experience in past in current print job income.Up to now, this deviation adaptive correction of manually regulating by the ink-covered area that undertaken by the printing worker.Even in this way and method can be at the good color consistency between the stock of realizing printed original and production under the situation of identical print job similarly and not only, and needn't be when each new printing the learning characteristic curve.Significantly reduced the quantity of indicatrix in this way with method, because no longer need the storage taken a lot of trouble.Described method moves and has avoided there unwanted maculature especially well when special ink prints.Propose in addition, replace seeking previous similarly print job ground, operating personnel select previous print job or use the task of the last time printing.
Propose in first configuration of the present invention, the inking device has the ink-covered area and adjusts the ink-covered area regulated value for each ink-covered area of at least one inking device.This zonal inking device has a plurality of ink-covered areas on the whole width of stock, described ink-covered area all must be regulated according to the color matching of current print job.This utilizes the relatively realization of the ink-covered area opening value of printing ink preconditioning indicatrix or previous print job and current print job according to the present invention, wherein, is used to the ink-covered area regulated value that the ink-covered area is opened for each single ink-covered area.Alternatively also passable is, two or more ink-covered areas are merged and only uses average ink-covered area preconditioning indicatrix respectively for the ink-covered area after merging.But this will cause printing ink to measure coarse result, expend but reduced to calculate.
In another configuration of the present invention, propose, described computer by means of the difference calculating of the area coverage value between previous print job and the current print job and in the inking device, adjust the ink-covered area opening and the ink-covered area of previous similar print job preregulated poor.Thereby the similarity aspect color matching and try to achieve the amount of similar print job between at first more current print job and the previous print job in this comparative approach.The similarity boundary is provided in advance by the setting of the control software in the control computer of printing machine.Only consider the setting that very similar print job is calculated the ink-covered area opening that is used for current print job.Thereby in this way with method prevent the ink-covered area opening that will bring current print job into the very large old print job of current print job difference calculate in and influence the ink-covered area negatively and regulate.Also determine the similarity of print job in this case, that is, prepare data and correspondingly detect color distortion between the print job in mutual comparative figures printing aspect the color matching by following manner.Only color distortion and current print job are selected and are used to try to achieve the regulated value that is used for current print job above the old print job of the tolerance that allows as similar print job.In task very similarly under the situation, thereby simply the difference of the area coverage between old print job and the new print job is applied to the ink-covered area value of described old task and calculates and in the inking device, adjust the poor of ink-covered area opening and previous print job.
Propose in another configuration of the present invention, described computer was not too similarly before calculating an indicatrix and was utilizing described indicatrix to calculate the regulated value of the ink-covered area opening of current print job based on the described similar value of print job before under the situation of print job.Propose at this, by described regulated value as the area coverage of previous print job and ink-covered area opening for current print job by interpolation method and/or extrapolation calculate be used for the preregulated interim indicatrix of printing ink and as described in computer by as described in interim indicatrix calculate the opening that is used for each ink-covered area.In the method, each value of the preregulated previous print job of printing ink is compared with the value of current print job, try to achieve corresponding difference and lay new interim indicatrix and use it for current print job by the point after proofreading and correct then.
Advantageously propose in addition, described computer is calculated the regulated value of ink-covered area opening for current print job by current area coverage value by means of the described not too similarly indicatrix of the storage of previous print job.The big advantage of described way is to call the indicatrix of described previous tasks when the difference aspect color matching is too big between previous print job and the current print job.Avoidablely with method in this way be, thereby the color distortion between current print job and old print job begins the change aspect the color matching of current print job and not desired color difference with the printed original of current print job occurs when too big.
Propose in another configuration of the present invention, still not too similarly under the situation of previous print job, the indicatrix by a plurality of previous print job when calculating averages.In this case, the indicatrix of a plurality of previous tasks quilt is average, thereby makes that deviate is not to work so consumingly.
In order to call the data of previous print job, what have big advantage is that the control computer of printing machine calls printing and prepares, and stores the data that are used for print job usually in described printing is prepared.Can realize by the printing house network system or by the internet with described for example connection that printing is prepared, if printing is prepared and the printing house separates on the place.The present invention not only can be used for page or leaf and opens offset press but also can be used for web press.
Description of drawings
Describe and set forth the present invention below in detail by means of a plurality of accompanying drawings.In the accompanying drawing:
Fig. 1 is that page or leaf is opened offset press,
Fig. 2 is a decision-making technique, which kind of degree to consider the ink-covered area opening of previous print job to,
The ink-covered area opening that Fig. 3 is based on previous print job carries out the adaptive of current printing ink preconditioning value,
Fig. 4 carries out printing ink preconditioning by interpolation method or extrapolation based on interim indicatrix,
Fig. 5 is to use the interim indicatrix of corresponding previous print job,
Fig. 6 is based on a plurality of previous print job and calculates printing ink preconditioning.
The specific embodiment
Fig. 1 illustrates the page or leaf with two printing equipments 3,4 and opens offset press 1, and a described page or leaf offset press has page or leaf and opens an automatic sheet feeder 2 and a page or leaf paper receiver 6.In described automatic sheet feeder 2, stack 8 and take out printed pages 9 and flow to first printing equipment 3 with being divided into individual from automatic sheet feeder.In first printing equipment 3, in the printing gap of printed pages between impression cylinder 21 and blanket cylinder 20 by with the first color separation printing.Printed pages 9 is carried between described first printing equipment 3 and second printing equipment 4 by means of conveying cylinder 14.In second printing equipment 4, printed pages 9 again in the printing gap between impression cylinder 10 and blanket cylinder 13 by with the second color separation printing and be transferred to described paper receiver 6 then.In paper receiver 6, the printed pages of finishing 9 is placed on paper receiver and stacks on 7 and be available for further processing.Described in principle printing equipment 3,4 can constitute in the same manner, wherein, these two printing equipments 3,4 also have plate cylinder 11,12 except described impression cylinder 10,21 and blanket cylinder 13,20, described plate cylinder carrying has the forme of corresponding color separation.
The painted of forme on the plate cylinder 11,12 realized by the inking device in described two printing equipments 3,4 16,17.Described two inking devices 16,17 have zonal metering device, have a plurality of ink-covered areas thereby open at page or leaf on 9 the whole width, can differently regulate color matching in described ink-covered area.In addition, in each printing equipment 3,4, settle damping device 18,19, can influence the characteristic of printing-ink by described damping device.Whole printing machine and being used to has the servo motor of the inking device 16,17 of ink-covered area opening by 5 controls of control computer, on described control computer, connect a color measuring instrument 22 in addition, utilizing described color measuring instrument to stack finished product stock 9 on 7 measuring paper receiver aspect the color.If the misalignment that printed original and measured page or leaf are opened between 9 is too big, then must correspondingly adjust the metering device for paint in the inking device 16,17 again.Control computer 5 carries out described printing ink adjustment.Regulation is controlled computer 5 and is had storage area in principle, and storage is used for the printing ink preconditioning value of the single ink-covered area of the inking device 16,17 in described storage area, and it is the form of printing ink preconditioning indicatrix.Be used for the ink-covered area opening FZ of current print job
NewlyBefore being conditioned, at first in computer 5, current print job and previous print job are compared aspect the color matching.
The analysis of described current print job shown in Figure 2.If find and the very similar print job of current print job, then according to the ink-covered area opening value FZ of Fig. 3 by previous print job
Former BeginningAdaptive calculating be used for the ink-covered area opening FZ of current print job
NewlyIf do not find very similarly print job, then in next step, in control computer 5, check whether there are a plurality of print job conscientiously.If not this situation, then only calculate the ink-covered area opening FZ that is used for current print job by calculating interim indicatrix according to Figure 4 and 5
NewlyIf yet there are a plurality of print job, study is used for the preregulated indicatrix of printing ink and calculates and adjust at the inking device 16,17 the ink-covered area opening FZ of current print job based on the indicatrix of described study based on these print job
Newly
When calculating, using the area coverage of previous print job by the adaptive ink-covered area that carries out according to Fig. 3
FD
OriginalPrinting ink preconditioning value.Described printing ink preconditioning value by with the area coverage FD of current task
NewlyRelatively and try to achieve poor dFD.Calculate corresponding preconditioning indicatrix VEKL in view of the above.Give the preconditioning indicatrix VEKL of corresponding printing ink for the poor dFD of each ink-covered area by configuration then based on described area coverage
NewlyCalculate ink-covered area difference dFZ.The ink-covered area preconditioning FZ of described then ink-covered area difference dFZ and previous print job
OriginalAddition, thereby the final ink-covered area preconditioning FZ that makes new advances that regulates
Newly
In Fig. 4, use the printing ink preconditioning value FD of not too similar old print job
OriginalIn this case by the value FD that exists
OriginalAnd FZ
OriginalAt first calculate by one by one linear interpolation and extrapolation and to be used for the preregulated interim indicatrix VEKL of printing ink.Described then new interim indicatrix VEKL is used to calculate ink-covered area FZ
Newly
As alternative, when the difference of the color matching aspect between old print job and the current print job is very big, can directly use described interim indicatrix VEKL to the method among Fig. 4.In this case, at interim indicatrix VEKL new described in Fig. 5 almost only based on the value FD of ancestral task
OriginalUtilize the area coverage FD of described interim indicatrix VEKL newly then with current print job
NewlyThereby be scaled ink-covered area opening FZ and obtain the printing ink preconditioning FZ of current print job
Newly
In method according to Fig. 6, there are a plurality of previous print job, they show difference.Be similar to method ground among Fig. 5 in this case by the area coverage FD of previous tasks
Original 1, FD
Former Beginning 2, FD
Original 3And FD
Original 4Calculate corresponding indicatrix VEKL and distribute to corresponding printing ink.Then, utilize these indicatrix VEKL that are used for corresponding printing ink adjusting to revise the area coverage DF of current print job
NewlyThereby and calculate the ink-covered area opening FZ of current print job
NewlyIn this way, the study right of new feature curve VEKL is coequally by previous print job and area coverage FD thereof
Original 1, FD
Original 2, FD
Original 3And FD
Original 4Data carry out.
Can guarantee the ink-covered area opening FZ of current print job in this way with method
NewlyCalculating not only under the situation of considering the printing machine characteristic but also the adjusting of considering to carry out under the situation of previous print job and possible the difference of current print job and avoiding causing too greatly owing to current print job and the difference between the print job before.
REFERENCE NUMBER LIST
1 printing machine
2 automatic sheet feeders
3 first printing equipments
4 second printing equipments
5 control computers
6 paper receivers
7 paper receivers stack
8 automatic sheet feeders stack
Open for 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 measuring instrument
FZ ink-covered area opening
Ink-covered area opening between old print job of dFZ and the new print job poor
The 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. be used for regulating at printing machine (1) method of color matching, described printing machine has at least one inking device (16) and controls computer (5), is used to regulate the value (FD of the color matching of previous print job
Original, FZ
Original) be stored in the described control computer, it is characterized in that, at first the color matching data of current print job and the data of previous print job are compared and try to achieve as far as possible similarly print job in described computer (5), described computer (5) is based on the value (FD of selected similarly previous print job
Original, FZ
Original) calculate the regulated value (FZ of the color matching that is used for current print job
Newly, dFZ).
2. method according to claim 1 is characterized in that, the described inking device (16) has the ink-covered area, adjusts ink-covered area regulated value (FZ for the single ink-covered area of described at least one inking device (16)
Newly).
3. method according to claim 1 and 2 is characterized in that, described computer (5) is by means of previous print job and current print job (FD
Newly) between area coverage value (FD
Original, FD
Newly) difference calculate and in the inking device (16,17), adjust the ink-covered area preconditioning (FZ of ink-covered area opening and previous similar print job
Original) poor (dFZ).
4. method according to claim 1 and 2 is characterized in that, described computer (5) under the situation of not too similar previous print job based on the value (FD of described similarly previous print job
Original, FZ
Original) calculate an indicatrix (VEKL) and utilize described indicatrix (VEKL) to calculate the regulated value (FZ of the ink-covered area opening of current print job
Newly).
5. method according to claim 1 is characterized in that, described computer (5) by means of the indicatrix (VEKL) of the described not too similarly storage of previous print job by current area coverage value (FD
Newly) calculate and in the inking device (16,17), adjust the regulated value (FZ of ink-covered area opening for current print job
Newly).
6. method according to claim 5 is characterized in that, under the situation of not too similar previous print job, the indicatrix by a plurality of previous print job when calculating averages.
7. according to each described method in the above claim, it is characterized in that described computer (5) replaces trying to achieve the value (FD of similarly previous print job ground based on the print job of the last time use
Original, FZ
Original) calculate the regulated value (FZ of the color matching that is used for current print job
Newly, dFZ).
8. according to each described method in the claim 1 to 6, it is characterized in that described computer (5) is set for and replaces trying to achieve similarly previous print job ground and manually select one or more print job and described computer (5) value (FD based on the described print job of manually selecting by operating personnel via operating means
Original, FZ
Original) calculate the regulated value (FZ of the color matching that is used for current print job
Newly, dFZ).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010012507 | 2010-03-24 | ||
| DE102010012507.5 | 2010-03-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102205695A true CN102205695A (en) | 2011-10-05 |
| CN102205695B 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) |
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| CN103786434A (en) * | 2012-10-26 | 2014-05-14 | 海德堡印刷机械股份公司 | Matching of old characteristic curve |
| CN104553304A (en) * | 2013-10-25 | 2015-04-29 | 海德堡印刷机械股份公司 | Proof quality control |
| CN106976314A (en) * | 2015-10-06 | 2017-07-25 | 海德堡印刷机械股份公司 | For setting up the characteristic method of preconditioning |
| CN115320250A (en) * | 2021-05-11 | 2022-11-11 | 海德堡印刷机械股份公司 | Method for printing at least two print jobs with a printing press |
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|---|---|---|---|---|
| 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 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102205695B (en) | 2015-07-01 |
| DE102011012289A1 (en) | 2011-09-29 |
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