CN103241027A - Lubrication limit control field for use in push plate of printing machine, has wider printed lines and thinner non-printing lines arranged alternately and running vertically to print material traveling direction - Google Patents
Lubrication limit control field for use in push plate of printing machine, has wider printed lines and thinner non-printing lines arranged alternately and running vertically to print material traveling direction Download PDFInfo
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- CN103241027A CN103241027A CN2013101286730A CN201310128673A CN103241027A CN 103241027 A CN103241027 A CN 103241027A CN 2013101286730 A CN2013101286730 A CN 2013101286730A CN 201310128673 A CN201310128673 A CN 201310128673A CN 103241027 A CN103241027 A CN 103241027A
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- printing
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- forme
- track
- boundary control
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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
- B41F33/0054—Devices for controlling dampening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F22/00—Means preventing smudging of machine parts or printed articles
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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
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
Abstract
The field (4) has wider printed lines (14) and thinner non-printing lines (15) that are arranged alternately. The wider printing lines and the non-printing lines run vertically to a print material traveling direction, where the width of each wider printing line is about 140.05-0.30 mm, and width of the each thinner non-printing line is about 150.003 - 0.020 mm. A print image of the push plate is indirect produced on a printed sheet over a blanket cylinder. A densitometer measures color density in fields. Independent claims are also included for the following: (1) a push plate (2) a method for adjusting the moisturizing agent quantity in offset printing (3) a memory medium comprising a set of instructions for adjusting the moisturizing agent quantity in offset printing.
Description
Technical field
The present invention relates to set-off boundary Control district, have the forme in described set-off boundary Control district, when printing by described forme, control the method for wetted media supply and be used for storing the memory device of the numeral in set-off boundary Control district.
Background technology
If apply very little wetted media at forme, then forme will be done operation.At this moment, the position of not printing originally among the printing figure will absorb printing ink in the mode that does not conform to expectation on forme.This effect is known as set-off or dyeing.The wetted media (transfer point) that carries out the transition to very little from the wetted media of capacity is known as the set-off border.
In DE4224139C2, introduced a kind of for the method for regulating wetted media.At this, the wetted media supply is regulated like this, makes that when wetted media reduced consistently, dyeing reached given degree and maintains in a selected forme zone.Selected zone comprises non-printing position, be oleophobic property position and the grid lines district of printing together individually.Selected zone can be arranged near the panchromatic district of a print control strip or be arranged in the zone of the non-printed edge of forme.
Introduce a kind of method for the supply of control wetted media at DE103 28 705 A1, in described method, used a measurement zone.Described measurement zone forms a no printing ink face and is positioned at the outside of subject areas at forme.The wetted media amount is to regulate by this way, that is, measurement zone just can not receive printing ink.
Introduce a kind of method for control wetted media feed speed at EP1 477 314 B1, in described method, carried out a density measure step, a calculation procedure and a regulating step.In the density measure step, measure the ink density of cog region.But but cog region comprise area between one group of identical Printing Zone of line number and the non-Printing Zone than the area between different cog regions and one group of Printing Zone and the non-Printing Zone than the different cog region of identical line number and comprise complete zone.
The disadvantage of background technology is, shows the variation of wetted media amount with low excessively resolution ratio.At forme a critical process status is arranged, namely because the wetted media amount does not reach definite non-Printing Zone of standard and covered by printing ink, before reaching critical process status, measurement zone can not demonstrate significant variation aspect the measured density.Measurement zone just reflects obvious variation when soon reaching the set-off border.The time that process control is left in this slow excessively reaction for is too short, so that can not be by changing the reaction in time of wetted media quantity delivered and therefore can not avoiding non-Printing Zone to be covered by printing ink.Can not avoid set-off or dyeing safe enough.
Summary of the invention
Task of the present invention will be by a kind of set-off boundary Control district with the described feature of claim 1, a kind ofly have the forme of the described feature of claim 5, a kind of control method and a kind of memory device with the described feature of claim 10 with the described feature of claim 8 solves.
Of the present inventionly comprise track and non-track for the set-off boundary Control district that regulates the wetted media amount when the offset printing, they are alternately arranged mutually.Track is respectively than non-printing live width.
Suppose that " that finishes " and has following reason for the physical effect of reacting the ink density in the timely raising line district trace: producing abundant little ink droplet between forme and the blanket and when printing ink between forme and the Paint Roller separates in advance thus.Many little ink droplet wherein so is dropped on the edge of a track, makes little ink droplet be positioned partially on the track and is positioned partially on the adjacent non-track.In other words, little ink droplet extend in the non-track.Some king-sized little ink droplet so drips in the online district, makes little ink droplet be connected with each other two tracks and certain non-track that also covers between two tracks of while.In other words, non-track is by little ink droplet bridge joint.By contacting a track or connecting the connection of two tracks, the described little ink droplet that is positioned partially on the non-track sticks to set-off boundary Control district and these ink droplets can not wash away from non-track by wetted medium.The printing ink cover part that changes by this way in set-off boundary Control district is delivered on the stock by blanket from set-off boundary Control district and is measured to as the ink density value that increases in the online district in set-off boundary Control district.
Theoretical foundation of the present invention is, track must be thick, in order to when printing ink separates, form there and permitted great little ink droplet, and the non-track between track must be narrow, makes when printing ink separates splash or be atomised to the track that little ink droplet on the non-track contacts at least one adjacency.
In dependent claims, enumerated the preferred constructive form in set-off boundary Control of the present invention district.
In a version, the width of each track is 0.05 millimeter～0.30 millimeter.In described width range, guarantee, if use is traditional offset ink, when printing ink separates, form enough big little ink droplet.
In another version, the width of each non-track is 0.003 millimeter～0.020 millimeter.In described width range, guarantee, fall back to the adjacent track of the little ink droplet contact in set-off boundary Control district or track is connected with each other.
In another version, be that track also is that non-track all laterally extends with respect to the stock throughput direction.That is, these two kinds of lines extend in parallel to each other and with the leading edge of a forme with set-off boundary Control district and trailing edge and with the cylinders of printing press of a responsible delivering printing or carrying forme abreast.
Of the present inventionly comprise one according to of the present invention or according to the set-off boundary Control district of one of described version, in order to when offset printing, regulate the wetted media amount for the forme that carries out offset printing by wetted media.The narrow non-track that set-off boundary Control district has wideer track and alternately settles with these wideer tracks.
At least one according to set-off boundary Control district of the present invention or corresponding to the set-off boundary Control district of one of described version preferably in the outer setting of printing figure and theme on forme.
In a version according to forme of the present invention, forme additionally has panchromatic district.When printing during panchromatic district, panchromatic district stock produce one comprise a covering, without the panchromatic measurement zone of the ink lay of gridding.Can be by the panchromatic density of densimeter measurement in the panchromatic measurement zone that is printed.
In another version, between set-off boundary Control district and the panchromatic district with the forme leading edge direction parallel with the forme trailing edge on distance to be measured be up to 50 millimeters, preferably be up to 35 millimeters.Can be placed in these two districts in the covering of same ink area of the printing machine that uses the forme printing whereby.These two zones can be positioned on the lateral edges of a no printing figure of forme, for example, and 1～10 millimeter on distance printing figure line or theme line.On the lateral edges of another no printing figure of forme, can settle another this district that is formed by a set-off boundary Control district and panchromatic district right by identical mode and method.Can utilize following knowledge by being arranged on the lateral edges: the non-printing position of the close lateral edges of printing figure is easy to be colored most.According to the present invention, those of printing figure also are easy to dyeing especially near the non-printing dots of printing beginning portion.Therefore also on the preceding edge strip of the suitable no printing figure that described district is positioned at forme.
According to of the present invention since during in offset printing by forme control and preferably regulate in the method that wetted media supplies with, described forme comprises a set-off boundary Control district that is used for regulating wetted media when offset printing, described set-off boundary Control district has wideer track and the narrower non-track that is arranged alternately, in described method, regulate the wetted media amount according to a characteristic parameter, described characteristic parameter is to calculate by a formula, and described formula comprises the ink density that records in the set-off boundary Control district that is printed and the ink density that records in the panchromatic district that is printed.The set-off boundary Control district that is printed and the panchromatic district that is printed refer to described two districts on the stock---preferably on same printed sheet---and the printing ink trace of generation.
In another version according to the inventive method, described formula comprises the merchant, and the ink density that records in described set-off boundary Control district is included in described merchant's the dividend and the ink density that records in described panchromatic district is included in described merchant's the divisor.Ink density can be included among two of formula, as the truth of a matter and index.
The present invention also comprises memory device, according to of the present invention or be stored in the described memory device according to the numeral in the set-off boundary Control district of one of its version, in order to control described printing machine thus.Memory device can be for example Zip disk or internal memory hard disk for example of outside mobile memory.
Description of drawings
Explanation and accompanying drawing by embodiment describes other Design and Features aspect preferred construction form of the present invention below.Brief description:
Fig. 1: the offset printing-forme in a panchromatic district that comprises set-off boundary Control district and match,
Fig. 2: a wet offset press that comprises control device and memory device,
Fig. 3: a printed sheet that has by the district shown in Figure 1 trace of press printing shown in Figure 2,
Fig. 4: the enlarged drawing in set-off boundary Control shown in Figure 1 district and
Fig. 5: the change curve that is used for the characteristic parameter of control printing machine shown in Figure 2.
The specific embodiment
Fig. 1 illustrates a forme 1, is used for by the wetted media offset printing.Forme 1 is by printing Fig. 2 imaging and have printing width 3.One of forme 1 not on the side strip of printing figure each side at printing Fig. 2 a set-off boundary Control district 4 and a panchromatic district 5 are respectively arranged.Described district 4,5 and the printing Fig. 2 lateral edges between distance A be 1～10 millimeter.
Fig. 2 illustrates a printing machine 6, and it has the offset printing appts of a plurality of stocks for the printing sheets form.An electronic-controlled installation 7 belongs to described printing machine 6, and described electronic-controlled installation comprises a memory device 13 that is used for the storage digital data.Memory device 13 also can be a part that does not belong to the printing plate exposure device of printing machine 6 from step before the seal.
Fig. 3 illustrates the printed sheet 8 that prints by forme 1 in printing machine 6.In printing process, printed sheet 8 is transported in the stock conveying device 9 in printing machine 6.Have a printing Figure 12, the trace that passes through the indirect generation of blanket cylinder of printing Fig. 2 that described printing figure is forme 1 at printed sheet 8.In addition, have set-off boundary Control district-trace 10 and panchromatic district-trace 11 at printed sheet 8, described set-off boundary Control district-trace is corresponding with the set-off boundary Control district 4 of forme 1, and described panchromatic district-trace is corresponding with the panchromatic district 5 of forme 1.A densitometer 19 is connected with described control device 7 as the measurement mechanism that is used for the ink density in the described district 10 of measurement, 11.
Fig. 4 illustrates, and 4 of each set-off boundary Control district of forme 1 has about 6 millimeters length 16 and about 5 millimeters width 17.Therefore, set-off boundary Control district 4 is square basically.Set-off boundary Control district 4 has the grid lines of being made up of track 14 and non-track 15.Track 14 has a live width B respectively, and described live width is 0.05 millimeter～0.30 millimeter.Track 14 itself is not by gridding and can be described as panchromatic-striped.Non-track 15 has a live width b respectively, and described live width is 0.003 millimeter～0.020 millimeter.
Fig. 5 illustrates a chart with curve 18.What curve 18 showed is that the change curve of characteristic parameter k is as the function of the wetted media of carrying to forme 1.Ordinate comprises that characteristic parameter k and abscissa comprise the wetted media amount of input, wherein, use F
OkExpression is used for the wetted media amount of so-called OK-printed sheet.This and the corresponding boundary value in set-off border draw by the calibration test that utilizes the 4 disposable execution of set-off boundary Control district, and wherein, the input of wetted media can change with characteristic parameter k or its change curve and is recorded.The typical boundary value in set-off boundary Control district 4 can be determined and determine to the required wetted media amount of OK-printed sheet virtually by the printed sheet that is printed in the characteristic parameter change curve.Characteristic parameter k is adapted in the adjustment process of a wetted media input that be used for to adjust printing machine 6 as regulated quantity.The basis of curve 18 is any in the following formula, can calculate characteristic parameter k according to described formula.
Or
In each formula of these two formula, the ink density Dv that the ink density Ds of set-off boundary Control district-trace 10 is arranged in merchant's dividend and panchromatic district-trace 11 is arranged in merchant's divisor.Ink density lays respectively in the index in second formula, realizes more deviation of signals thus in the zone that is higher than the set-off border, and this is favourable.
REFERENCE NUMBER LIST
1. forme
2. (on forme) schemed in printing
3. printing width
4. set-off boundary Control district
5. panchromatic district
6. printing machine
7. control device
8. printed sheet
9. stock conveying device
10. set-off boundary Control district-trace
11. panchromatic district-trace
12. printing figure (on printed sheet)
13. memory device
14. track
15. non-track
16. section length
17. sector width
18. curve
19. densitometer
The ink density of Ds set-off boundary Control district-trace
The ink density of the panchromatic district-trace of Dv
The K characteristic parameter
F
OkThe wetted media amount of OK-printed sheet
The A distance
The live width of B track
The live width of the non-track of b
Claims (10)
1. be used for when offset printing, regulating the set-off boundary Control district (4) of wetted media amount, it is characterized in that wideer track (14) and narrower non-track (15) alternately arrange.
2. set-off boundary Control according to claim 1 district is characterized in that the width of described track (14) is respectively 0.05～0.30mm.
3. set-off boundary Control according to claim 1 and 2 district is characterized in that the width of described non-track (15) is respectively 0.003～0.020 millimeter.
4. according to each described set-off boundary Control district in the claim 1～3, it is characterized in that described track (14) and described non-track (15) extend perpendicular to stock throughput direction (9).
5. be used for utilizing wetted media to carry out the forme of offset printing (1), it is characterized in that described forme has according to each described set-off boundary Control district (4) in the claim 1～4.
6. forme according to claim 5 is characterized in that, described forme has panchromatic district (5).
7. forme according to claim 6 is characterized in that, described set-off boundary Control district (4) and described panchromatic district (5) spacing on the direction of printing width (3) is up to 50mm.
When offset printing by the method according to each described forme (1) control wetted media supply in claim 6 or 7, wherein, the wetted media amount is regulated according to characteristic parameter (k), described characteristic parameter calculates by formula, and described formula comprises the ink density that records in the set-off boundary Control district (10) that is printed and the ink density that records in the panchromatic district (11) that is printed.
9. the described method of claim 8, wherein, described formula comprises the merchant, and the ink density that records in described set-off boundary Control district (10) is included in described merchant's the dividend and the ink density that records in described panchromatic district (11) is included in described merchant's the divisor.
10. memory device is stored on the described memory device according to the numeral in each described set-off boundary Control district (4) in the claim 1～4, in order to thus printing machine (6) is controlled.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012002060.0 | 2012-02-03 | ||
| DE102012002060 | 2012-02-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103241027A true CN103241027A (en) | 2013-08-14 |
| CN103241027B CN103241027B (en) | 2017-03-22 |
Family
ID=48794712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310128673.0A Active CN103241027B (en) | 2012-02-03 | 2013-01-31 | Lubrication limit control field for use in push plate of printing machine, has wider printed lines and thinner non-printing lines arranged alternately and running vertically to print material traveling direction |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103241027B (en) |
| DE (1) | DE102013000748A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5319891A (en) * | 1991-11-23 | 1994-06-14 | Ernst Thielenhaus Kg | Method of and tool for fine-machining a part-spherical workpiece |
| US20020176940A1 (en) * | 2001-05-23 | 2002-11-28 | Heiner Pitz | Printing method and device |
| US20040226469A1 (en) * | 2003-05-15 | 2004-11-18 | Dainippon Screen Mfg. Co, Ltd. | Method of controlling a feed rate of dampening water in an offset press |
| DE10328705A1 (en) * | 2003-06-26 | 2005-01-27 | Koenig & Bauer Ag | Method of setting amount of fountain solution for ink and fountain solution emulsion in offset printing machine by detecting energy needed to reduce fountain solution |
| CN101332698A (en) * | 2007-06-28 | 2008-12-31 | 海德堡印刷机械股份公司 | Metering zong for determining lipid-sensing limitation during printing |
| CN101698375A (en) * | 2008-07-02 | 2010-04-28 | 海德堡印刷机械股份公司 | Offset printing process |
| US20100299595A1 (en) * | 2009-05-21 | 2010-11-25 | Sony Computer Entertainment America Inc. | Hand-held device with two-finger touch triggered selection and transformation of active elements |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4214139C2 (en) | 1992-04-29 | 2002-01-10 | Heidelberger Druckmasch Ag | Process for dampening solution regulation when printing from a form cylinder in an offset printing machine |
-
2013
- 2013-01-17 DE DE201310000748 patent/DE102013000748A1/en active Pending
- 2013-01-31 CN CN201310128673.0A patent/CN103241027B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5319891A (en) * | 1991-11-23 | 1994-06-14 | Ernst Thielenhaus Kg | Method of and tool for fine-machining a part-spherical workpiece |
| US20020176940A1 (en) * | 2001-05-23 | 2002-11-28 | Heiner Pitz | Printing method and device |
| US20040226469A1 (en) * | 2003-05-15 | 2004-11-18 | Dainippon Screen Mfg. Co, Ltd. | Method of controlling a feed rate of dampening water in an offset press |
| JP2004358958A (en) * | 2003-05-15 | 2004-12-24 | Dainippon Screen Mfg Co Ltd | Method for controlling feed rate of dampening water in offset press |
| DE10328705A1 (en) * | 2003-06-26 | 2005-01-27 | Koenig & Bauer Ag | Method of setting amount of fountain solution for ink and fountain solution emulsion in offset printing machine by detecting energy needed to reduce fountain solution |
| CN101332698A (en) * | 2007-06-28 | 2008-12-31 | 海德堡印刷机械股份公司 | Metering zong for determining lipid-sensing limitation during printing |
| CN101698375A (en) * | 2008-07-02 | 2010-04-28 | 海德堡印刷机械股份公司 | Offset printing process |
| US20100299595A1 (en) * | 2009-05-21 | 2010-11-25 | Sony Computer Entertainment America Inc. | Hand-held device with two-finger touch triggered selection and transformation of active elements |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103241027B (en) | 2017-03-22 |
| DE102013000748A1 (en) | 2013-08-08 |
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