CN101513803A - Horizontal register method for printing easy deformation film - Google Patents
Horizontal register method for printing easy deformation film Download PDFInfo
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- CN101513803A CN101513803A CNA2009100482802A CN200910048280A CN101513803A CN 101513803 A CN101513803 A CN 101513803A CN A2009100482802 A CNA2009100482802 A CN A2009100482802A CN 200910048280 A CN200910048280 A CN 200910048280A CN 101513803 A CN101513803 A CN 101513803A
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- deformation film
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Abstract
The invention discloses a horizontal register method for printing an easy deformation film. The printing process is sequentially as follows: pattern colors are printed onto the easy deformation film by a front color class printing plate, after the easy deformation film is dried by an oven of the color class, the pattern colors are overprinted onto the easy deformation film by a back color class printing plate; wherein, before printing, the horizontal preshrinking processing is sequentially carried out on the patterns of the printing plate of the back color class, the shrinkage factor of each horizontal preshrinking processing is the horizontal shrinkage factor of the easy deformation film which goes though the front color class. The horizontal register method for printing the easy deformation film overcomes the technical problem that in the prior art, the horizontal register trouble in the easy deformation film printing gives rise to the overtop rejection rate, increases the printing quality of the machine set type gravure printing and flexography printing.
Description
Technical field
The invention belongs to print field, relate to printing technologies such as set type intaglio printing, flexographic printing, be applicable to stretching or be heated the yielding plastic sheeting in back, nonwoven, thin paper (grammes per square metre≤80g/m
2).
Background technology
Yielding plastic sheeting, nonwoven, thin paper (grammes per square metre≤80g/m
2) (as flexible thin-film material of softness or thermo-responsive type thin-film material, below be referred to as easy deformation film) in printing process, through after the last colour cell, because the drying of baking oven is heated in the tractive of last colour cell or the preceding colour cell of the same colour, easy deformation film laterally trace shrinks, and so just causes the horizontal register trouble of back one colour cell.
With thermo-responsive type film printing is example, as shown in Figure 1, in conventional the set type intaglio printing or flexographic printing, thermo-responsive type film 001 is after the forme 101 of first colour cell 100 carries out the printing of the 1st look, after baking oven 102 dryings, the forme 201 through second colour cell 200 carries out the 2nd look chromatography again, again through baking oven 202 dryings, and the like carry out, finish until printing.
If conventional forme manufacture craft, it is identical needing the distance between the pattern of horizontal register.In Fig. 2, promptly needing the horizontal spacing between two cross hairs of registration printing all is identical (showing it all is 1000mm among the figure).
But, after the thin-film material of thermo-responsive type is passing through previous baking oven, film laterally just has slight contraction, as shown in Figure 3, the heat sensitivity film behind previous baking oven with regard to cross-direction shrinkage 0.1%, spacing between the 1st look cross hairs 301 that promptly prints has become 999mm, then needs spacing or 1000mm between the 2nd look cross hairs 302 of registration printing on the forme of a colour cell, and this has just caused horizontal register trouble.
When situation shown in Figure 3 appearred in printing, the cross hairs overprint error on top was too big, reaches 1mm, and this is that printing quality institute is unacceptable.At present, the Chang Gui technical scheme that addresses the aforementioned drawbacks is that pattern is placed in the middle.As shown in Figure 4, make up and down that cross hairs all is the overprint error of 0.5mm, though overprint error reduced, still very big, the problem that in the printing of a lot of fine product, can cause percent defective to exceed standard.
Summary of the invention
Technical problem to be solved of the present invention provides a kind of horizontal register method for printing easy deformation film, and horizontal register trouble causes the too high problem of percent defective in the printing easy deformation film to solve.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of horizontal register method for printing easy deformation film, printing process is for being printed onto pattern color on the easy deformation film by the forme of last colour cell successively, behind the oven drying of easy deformation film by this colour cell, again through after the forme of a colour cell pattern color cover is imprinted on the easy deformation film, it is characterized in that: before printing, successively the pattern of the forme of described back one colour cell is carried out laterally pre-the contraction and handle, each laterally pre-shrinkage factor of handling of shrinking is that easy deformation film is through the lateral shrinkage after the last colour cell.
Described lateral shrinkage obtains for by the use test forme easy deformation film being tested before formal printing.
Described easy deformation film is soft flexible plastic sheeting, nonwoven, grammes per square metre≤80g/m
2A kind of or thermo-responsive plastic film in the thin paper, nonwoven, grammes per square metre≤80g/m
2A kind of in the thin paper.
Adopt technique scheme, because successively the pattern of the forme of described back one colour cell having been carried out laterally pre-the contraction handles, at easy deformation film after last colour cell generation cross-direction shrinkage, so last colour cell be printed on the easy deformation film pattern color just in time with the forme of back one colour cell on pattern be complementary, thereby can realize the accurate horizontal register of printing easy deformation film.Therefore, horizontal register method for printing easy deformation film of the present invention has overcome in the printing easy deformation film of the prior art laterally that register trouble causes the too high technical problem of percent defective, has improved the printing quality of set type intaglio printing, flexographic printing.
Description of drawings
The present invention is described in detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is a set type print principle schematic diagram.
Fig. 2 is the forme of last colour cell used in the prior art and the structural representation of the forme of back one colour cell.
Fig. 3 causes registration error phenomenon schematic diagram for conventional printing.
Fig. 4 is present solution schematic diagram of the prior art.
Fig. 5 is among the present invention, to after the horizontal preliminary treatment of forme of back one colour cell with the plate structure of last colour cell schematic diagram relatively.
The specific embodiment
Thermo-responsive type film (comprises thermo-responsive plastic film, nonwoven, grammes per square metre≤80g/m
2Thin paper) laterally micro-the contraction can be taken place after through oven drying in the last colour cell, and soft flexible film (comprises soft flexible plastic sheeting, nonwoven, grammes per square metre≤80g/m
2Thin paper) through also can taking place behind the last colour cell tractive, shrinking same horizontal trace, therefore, and the horizontal register of horizontal register method for printing easy deformation film of the present invention same applied heat responsive type film printing and resilient flexible film printing.Because the step of the horizontal register method of two kinds of film printings is the same, below be that example specifies technical scheme of the present invention mainly just with thermo-responsive type film printing horizontal register method.
Thermo-responsive type film printing horizontal register method, wherein printing process is for being printed onto pattern color on the thermo-responsive type film by the forme of last colour cell successively, behind the oven drying of thermo-responsive type film by this colour cell, again through after the forme of a colour cell pattern color cover is imprinted on the thermo-responsive type film, and before printing, successively the pattern of the forme of the back colour cell in the printing machinery is carried out laterally pre-the contraction and handle, each laterally pre-to shrink the shrinkage factor of handling be the lateral shrinkage of thermo-responsive type film behind the oven drying of last colour cell.
The horizontal pre-shrunk shrinkage factor of forme can obtain by using special test forme that the stock film is tested before formal printing.
Concrete through the horizontal pre-shrunk ratio after each colour cell, through may be identical after the test, such as all being 0.1%; Then forme contraction ratio in advance is set at: first look, 0%, the second look, 0.1%, the three look, 0.2%, the four look, 0.3%, the five colors, 0.4%, the six look, 0.5%, the seven look, 0.6%, the eight look 0.7%
But also may be because the baking temperature of certain colour cell is very high, (this ink type of using with each colour cell is relevant), and it is high especially in pre-contraction ratio through this colour cell back colour cell, the needed baking temperature of printing ink that uses such as the 4th look high is especially, the contraction that this colour cell causes is big especially, be 0.15% after tested, the shrinkage rates that the drying of other colour cells causes is 0.1%, and then forme contraction ratio in advance is set at: first look, 0%, the second look 0.1%, the 3rd look 0.2%, the 4th look 0.3%, the five colors 0.45%, the six look 0.55%, the 7th look 0.65%, the eight look 0.75% ...
Particularly, be example to solve the described horizontal chromatography deviation of Fig. 3, in Fig. 3, heat sensitivity film 001 after the baking oven 102 of first colour cell 100 is dry with regard to cross-direction shrinkage 0.1%, the spacing between the 1st look cross hairs 301 that promptly prints has become 999mm.Accurate in order to guarantee follow-up chromatography, the pattern of the forme 201 of second colour cell 200 is carried out laterally pre-the contraction according to 0.1% ratio to be handled, promptly when making the forme of second colour cell, design producing on the forme of second colour cell is become than pattern cross-direction shrinkage 0.1% on the forme 101 of first colour cell 100, that is to say that the distance that will represent a pair of cross hairs of the 2nd look is made into the spacing of 999mm, as shown in Figure 5.Like this, a pair of cross hairs of the 999mm spacing of the 2nd look and the 1st look spacing 1000mm and to shrink 0.1% back spacing be a pair of cross hairs alignment just in time of 999mm.
The rest may be inferred then, to the 3rd, 4,5 ... the look forme is similarly handled, and solves the problem of the horizontal register trouble of thermo-responsive type film printing up hill and dale.
For some yielding especially film (mainly is soft flexible plastic sheeting, nonwoven, grammes per square metre≤80g/m
2Thin paper), because the deformation that the printing machine unwinding tension causes is severe especially, and adopt extra high pre-contraction ratio at first look; Such as after tested, the cross-direction shrinkage that unwinding tension causes is 0.3%, the cross-direction shrinkage that other colour cells cause is 0.1%, and then contraction ratio in advance is set at: first look, 0.3%, the second look 0.1%, the 3rd look 0.2%, the 4th look 0.3%, the five colors 0.4%, the six look 0.5%, the 7th look 0.6%, the eight look 0.7%.。。。
The horizontal pre-shrunk shrinkage factor of forme after using special test forme that the stock film is repeatedly tested, can draw experimental data, does not need all stocks are tested, to increase work efficiency.
As 40 microns polyethylene films soft, flexible, that stretching is yielding 1 meter wide, can draw the contraction 0.3% of first look pre-through test, other colour cells are pre-shrinks 0.1%, if the film of other width need be handled in proportion, first look as the wide stack pile film of 700mm is punctured into 0.3% * 700mm/1000mm=0.21% in advance, and the pre-shrinkage factor of other colour cells is 0.1% * 700mm/1000mm=0.07%.
Other thickness film of the same type then needs to take advantage of a thickness coefficient, as width is 800mm, thickness is 30 microns polyethylene film, its thickness coefficient is 1.1, the first look pre-shrunk shrinkage factor of this film is 0.3% * 800mm/1000mm * 1.1=0.264%, and the pre-shrinkage factor of other colour cells is 0.1% * 800mm/1000mm * 1.1=0.088%
Pass through foregoing detailed description, can find owing to successively the pattern of the forme of described back one colour cell has been carried out laterally pre-the contraction and handle, so at thermo-responsive type film through again cross-direction shrinkage takes place behind the oven drying of last colour cell after, last colour cell be printed on the thermo-responsive type film pattern color just in time with the forme of back one colour cell on pattern be complementary, thereby can realize the accurate horizontal register of thermo-responsive type film printing.
From foregoing detailed description as can be seen, horizontal register method for printing easy deformation film of the present invention overcome in the prior art in the printing easy deformation film laterally that register trouble causes the too high technical problem of percent defective, improved the printing quality of set type intaglio printing, flexographic printing.
Claims (3)
1, a kind of horizontal register method for printing easy deformation film, printing process is for being printed onto pattern color on the easy deformation film by the forme of last colour cell successively, behind the oven drying of easy deformation film by this colour cell, again through after the forme of a colour cell pattern color cover is imprinted on the easy deformation film, it is characterized in that: before printing, successively the pattern of the forme of described back one colour cell is carried out laterally pre-the contraction and handle, each laterally pre-shrinkage factor of handling of shrinking is that easy deformation film is through the lateral shrinkage after the last colour cell.
2, horizontal register method for printing easy deformation film according to claim 1 is characterized in that: described lateral shrinkage obtains for by the use test forme easy deformation film being tested before formal printing.
3, horizontal register method for printing easy deformation film according to claim 1 is characterized in that: described easy deformation film is soft flexible plastic sheeting, nonwoven, grammes per square metre≤80g/m
2A kind of or thermo-responsive plastic film in the thin paper, nonwoven, grammes per square metre≤80g/m
2A kind of in the thin paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100482802A CN101513803B (en) | 2009-03-26 | 2009-03-26 | Horizontal register method for printing easy deformation film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100482802A CN101513803B (en) | 2009-03-26 | 2009-03-26 | Horizontal register method for printing easy deformation film |
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| CN101513803A true CN101513803A (en) | 2009-08-26 |
| CN101513803B CN101513803B (en) | 2011-02-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689501A (en) * | 2011-03-24 | 2012-09-26 | 海德堡印刷机械股份公司 | Printing process and system for ascertaining register defects |
| CN105437802A (en) * | 2015-11-24 | 2016-03-30 | 浙江东合印刷包装有限公司 | Gravure, offset print and screen print matched printing technology |
| CN111605305A (en) * | 2020-04-29 | 2020-09-01 | 陕西北人印刷机械有限责任公司 | Paper transverse deformation control device and control method thereof |
-
2009
- 2009-03-26 CN CN2009100482802A patent/CN101513803B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689501A (en) * | 2011-03-24 | 2012-09-26 | 海德堡印刷机械股份公司 | Printing process and system for ascertaining register defects |
| CN102689501B (en) * | 2011-03-24 | 2016-03-30 | 海德堡印刷机械股份公司 | For determining printing process and the print system of alignment mistake |
| CN105437802A (en) * | 2015-11-24 | 2016-03-30 | 浙江东合印刷包装有限公司 | Gravure, offset print and screen print matched printing technology |
| CN111605305A (en) * | 2020-04-29 | 2020-09-01 | 陕西北人印刷机械有限责任公司 | Paper transverse deformation control device and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN101513803B (en) | 2011-02-16 |
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