CN102700235A - Multi-screen printing process - Google Patents
Multi-screen printing process Download PDFInfo
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- CN102700235A CN102700235A CN2012101896703A CN201210189670A CN102700235A CN 102700235 A CN102700235 A CN 102700235A CN 2012101896703 A CN2012101896703 A CN 2012101896703A CN 201210189670 A CN201210189670 A CN 201210189670A CN 102700235 A CN102700235 A CN 102700235A
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Abstract
The invention provides a multi-screen printing process comprising the following steps of: 1, partitioning patterns in a layout of a printed page according to characters during plate making before printing; 2, respectively rasterizing the partitioned patterns and outputting subfiles; 3, editing the subfiles, combining the subfiles into an integral layout of the printed page, rasterizing the subfiles again and outputting the subfiles to an electronic film; and 4, outputting the electronic film to a film or making a printing plate. After the patterns are partitioned, colors in all regions can be respectively adjusted into screentones most suitable for printing types, so that the picture quality is up to the optimized, and the problem of poor local printing effect caused by adopting the same screen type is avoided. Combination of different screentone types can be adopted on some color printed bills with anti-fake requirements under the condition that multi-color printing is not additionally provided, so that the effect of anti-fake scanning and color scanning imitation is achieved.
Description
Technical field
The present invention relates to print field, be meant a kind of typography especially.
Background technology
Resolution ratio is to be used to measure what a parameter of data volume in the bitmap images.Be often expressed as per inch pixel (Pixel per inch is abbreviated as ppi) and per inch point (Dot per inch is abbreviated as dpi).Screen resolution ratio (ScreenResolution) is claimed a net curtain frequency again, refers to the screen density of the per inch of the used screen of printed image at print field, promptly hangs the net screen density, representes with lpi; For example, 150LPI is meant that per inch is added with 150 netting twines.The technical scheme of common screening typography is hung net and is meant the certain resolution ratio netting twine frequency of employing when output, and with 150～175lpi, some high-grade picture album is also used the resolution ratio of 200lpi to 300dpi as the top grade printing.
Halftoning is meant and adopts the site images displayed, such as various printed matters, all is half tone image, amplifies and watches them to be made up of the site.The case of changing the line map is continuously amplified and is watched image, all is to can't see the site but be successional, like film printing paper image.
Am screening is regular, and site centre distance is constant, and site of light color is little; The dark site of color is big, because the accuracy and the stability of imaging, high light is convinced; The details of shadow part can obtain goodish protection in printing, average color lump performance is more attractive in appearance.The segmentation of amplitude modulation net has cylinder, prismatic net, pure cylinder, square net, fam hybrid network or the like multiple, and superior place is separately all arranged.
Modulating net is a random alignment, and is irregular because of modulating net, avoided the color spot of the overlapped generation of site line, and the site is littler relatively, and gradual transition is level and smooth, thereby color effect is very good, and the reproduction of hachure is clear especially.
The colour painting offset printing is made a plate before seal, adopts the single extension net output of bitmap or polar plot e-file rasterizing forme, with the basic element of site form composition colour painting, carries the transfer of printing ink from the forme to the paper through the site and accomplishes printing process.Present electronics screening technology; Singly to select certain net type continuous accent gradual change figure is deleted the output plate-making of formatting; Wherein various forms distribution site advantage performance is different, but all has certain superiority-inferiority, and when the coloured picture that false proof requirement is arranged adds antiforge function; It is additional to need to make an amendment to picture, in addition may with original generation conflict situations.
Summary of the invention
The present invention proposes a kind of multiple extension reticulated printing technology, has solved in the prior art and only continuous gradation figure has been deleted the not high problem of printing quality that causes when the output of formatting is made a plate with certain net type.
Technical scheme of the present invention is achieved in that
A kind of multiple extension reticulated printing technology, it may further comprise the steps:
Step 1: when before seal, making a plate, the pattern in the space of a whole page is carried out subregion by characteristic;
Step 2: with the difference of the pattern behind subregion rasterizing output subfile;
Step 3: said subfile compiled to seize be combined into the complete space of a whole page, rasterizing outputs to the electronics film again;
Step 4: the said electronics film is outputed to the film or makes forme.
After the present invention carries out subregion to pattern, can respectively that each is regional color be adjusted to the site of the type of suitable printing, make image quality reach optimization.Use the prismatic reticulated printing such as the picture contrast at the 30%-60% range section, the dot gain rate is little, the picture level smoothly reduces, and is suitable for the facial printing of personage; And be similar to map, personage's hair, and the printed matter of exquisite lace lines etc. be fit to adopt modulating net.
Preferably, in said step 2, the site type in each said subfile is a kind of in cylinder, prismatic net, amplitude modulation net or the modulating net.
So, preferably, when in step 1, carrying out subregion, pattern area>=1cm
2, and very clear sharp keen picture element of silhouette edge requirement is arranged, adopt modulating net to express; Preferably, map, personage's hair, exquisite lace adopt modulating net to express; Preferably, false proof version streakline bar, false proof secret mark, micro printing adopt modulating net to express; Preferably, when in step 1, carrying out subregion, portrait face area>=4cm
2The time, adopt the prismatic net to express.
Preferably, in said step 3, when said subfile editor was combined into the complete space of a whole page, the distance between the represented pattern of said subfile was not more than 0.07mm.
Multiple extension reticulated printing technology of the present invention is made a plate before seal, after printed page analysis planning, by the choosing of figure characteristic subregion circle, distinguishes output gridization behind the subregion again to subfile; Again rasterizing was to file once more after volume was seized the said subfile of combination then, and the film or forme are exported in merging at last.Avoided adopting with a kind of and netted the not good problem of local printing effect that type causes.Have on the color printing bill of false proof requirement at some, can not increase under the polychrome situation, adopt the combination of different sites of the present invention type, reach the imitated effect of anti-counterfeit scanning color separation.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the layout structure sketch map of the subfile combination of the multiple extension reticulated printing of the present invention technology;
The site type amplification effect sketch map that Fig. 2 prints out for the multiple extension reticulated printing of the present invention technology.
The specific embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Multiple extension reticulated printing technology of the present invention, it may further comprise the steps:
Step 1: when before seal, making a plate, the pattern in the space of a whole page is carried out subregion by characteristic;
Step 2: with the difference of the pattern behind subregion rasterizing output subfile;
Step 3: said subfile compiled to seize be combined into the complete space of a whole page, rasterizing outputs to the electronics film again;
Step 4: the said electronics film is outputed to the film or makes forme.
In step 1, when before seal, making a plate, the pattern in the space of a whole page is carried out subregion by characteristic, preferably, the site type in each said subfile is a kind of in cylinder, prismatic net, amplitude modulation net or the modulating net.Zoning ordinance commonly used is following: 1. area is at＞1cm
2Also comprise 1cm
2The time the filament patterns of features, very clear sharp keen picture element of silhouette edge requirement is arranged, adopt modulating net to express, such as map, personage's hair, and exquisite lace etc.Modulating net can also be used for having the printing of false proof requirement, and in order to describe the false proof version streakline bar like type of printing paper money, the fineness of lines can reach 0.03mm; Modulating net can also be applied to false proof secret mark, micro printing etc.2. the portrait face area is at＞4cm
2Also comprise 4cm
2The time, the level contrast will steadily be reduced, and the site that is strict controlled in 20% to 30% range section can not lose, and the site of 40% to 60% range section not capacity enlarges, and should adopt the prismatic reticulated printing; The level of prismatic net is level and smooth, dot gain rate＜5%.3. picture element is constituted complicacy, characteristics are not obvious, and area does not reach to meet cuts apart ideal value, all should adopt the habitual circular net of tradition, particularly whole uniform Color plane piece, and circular net is optimal selection.
In step 2; Each exports 1 bit tif formatter file with different net type rasterizings with the pattern behind the subregion; Be exactly each subfile resolution ratio ppi (pixel that per inch had) is total identical and have separately that the figure of site attribute constitutes element, total figure of the components type that express promptly different sites constitutes element.The amplitude modulation network parameters of subfile output is: mechanical laser resolution is 1200dpi-3000dpi in the output software, forme resolution ratio 150lpi-200lpi; The modulating net parameter of subfile output is: mechanical laser resolution is 3000dpi-4000dpi in the output software, and what printing net-point can be with the laser site is big or small identical, also can be made up of a plurality of laser site; Best, the size of each printing net-point is the size of 1 * 1 to 3 * 3 laser site, so the big or small d=of printing net-point (1 or 2 or 3) * 25.4mm/ (3000 or 4000).Described tif is a kind of picture format, and its full name is Tagged Image File Format, file extent TIF by name or TIFF.GIFf format is that Macintosh goes up widely used graphical format, has graphical format complicacy, characteristics that storage information is many, can the very high image of fabricating quality, thereby through being usually used in publication and printing.
In step 3, said each 1 bit tif formatter file compiled to seize be combined into the complete space of a whole page, the layout file resolution ratio ppi that is made up and the resolution ratio ppi of each subfile are in full accord.When setting ppi, adopt high-grade printing paper such as the mute powder of the copper coin picture that is beautifully printed, uses traditional approach amplitude modulation net to be 175lpi-200lpi, preserve generation 8 bit tif formatted files at last; When said subfile editor was combined into the complete space of a whole page, the distance between the represented pattern of said subfile was not more than 0.07mm.
In step 4, the electronics film of said 8 bit tif forms deleted with former self-defined site format, output to the film or directly export forme.
When in step 1, carrying out subregion, can the best site type of printing effect be adjusted in each zone, such as personage's face is dug out, be arranged to the prismatic site, personage's hair etc. then digs out the employing frequency-modulation halftone dot; Again the figure that digs out is output into subfile with separately site form rasterizing respectively; After being output into subfile behind each subregion, these subfiles are fitted together once more again, make its file that becomes multiple site type hybrid, forme is developed and printed or made to the last again file of this mixed lattice point type output.Like Fig. 1 is example, and the whole space of a whole page can be divided into A, B, C and four parts of D, and wherein, the A part can be modulating net, and B partly is the prismatic net, and the C part adds the amplitude modulation net for modulating net, and D partly is a cylinder.Each part can be printed off with the printing effect of the best like this, and can not look like existingly only with the type output of a kind of single site, causes the printing effect of subregion not good.
Site type in the present invention can be in cylinder, prismatic net or the modulating net a kind of.The design sketch that mix after amplifying various types of site of the present invention is as shown in Figure 2, and wherein the upper left corner is modulating net, and the lower right corner is the amplitude modulation net, and the area is the Mixed Zone of modulating net and amplitude modulation net wherein.
In the present invention, in said step 3, when said subfile editor was combined into the complete space of a whole page, the distance between the represented pattern of said subfile was not more than 0.07mm, was not more than 0.01mm for best, the vestige of not cutting apart with the figure that keeps printing out.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. multiple extension reticulated printing technology is characterized in that it may further comprise the steps:
Step 1: when before seal, making a plate, the pattern in the space of a whole page is carried out subregion by characteristic;
Step 2: with the difference of the pattern behind subregion rasterizing output subfile;
Step 3: said subfile compiled to seize be combined into the complete space of a whole page, rasterizing outputs to the electronics film again;
Step 4: the said electronics film is outputed to the film or makes forme.
2. multiple extension reticulated printing technology as claimed in claim 1 is characterized in that, in said step 2, the site type in each said subfile is a kind of in cylinder, prismatic net, amplitude modulation net or the modulating net.
3. multiple extension reticulated printing technology as claimed in claim 2 is characterized in that, map, personage's hair, exquisite lace adopt modulating net to express.
4. multiple extension reticulated printing technology as claimed in claim 2 is characterized in that, false proof version streakline bar, false proof secret mark, micro printing adopt modulating net to express.
5. multiple extension reticulated printing technology as claimed in claim 2 is characterized in that, when in step 1, carrying out subregion, and portrait face area>=4cm
2The time, adopt the prismatic net to express.
6. multiple extension reticulated printing technology as claimed in claim 1 is characterized in that, in said step 3, when said subfile editor was combined into the complete space of a whole page, the distance between the represented pattern of said subfile was not more than 0.07mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101896703A CN102700235A (en) | 2012-06-08 | 2012-06-08 | Multi-screen printing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101896703A CN102700235A (en) | 2012-06-08 | 2012-06-08 | Multi-screen printing process |
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|---|---|
| CN102700235A true CN102700235A (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101896703A Pending CN102700235A (en) | 2012-06-08 | 2012-06-08 | Multi-screen printing process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260570A (en) * | 2014-08-29 | 2015-01-07 | 深圳市冠为印务有限公司 | Novel visual anti-counterfeit printing method |
| CN109808323A (en) * | 2019-01-22 | 2019-05-28 | 山东天惠印刷有限公司 | Multiple linked network printing technology |
| CN111127483A (en) * | 2019-12-24 | 2020-05-08 | 北大方正集团有限公司 | Color image processing method, device, equipment, storage medium and system |
| CN111683818A (en) * | 2019-01-11 | 2020-09-18 | 中钞光华印制有限公司 | Manufacturing method of multicolor fluorescent product, multicolor fluorescent product and fluorescent handicraft |
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| CN1138524A (en) * | 1995-06-21 | 1996-12-25 | 时代集团公司 | FM and AM netting method |
| JP2002086664A (en) * | 2000-09-12 | 2002-03-26 | Tohoku Ricoh Co Ltd | Multi-color printing device and printing system |
| JP2005313347A (en) * | 2004-04-27 | 2005-11-10 | Riso Kagaku Corp | Multicolor stencil printing apparatus and control method thereof |
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| US4217822A (en) * | 1978-08-07 | 1980-08-19 | Triprint Pty. Ltd. | Color printing method |
| CN1138524A (en) * | 1995-06-21 | 1996-12-25 | 时代集团公司 | FM and AM netting method |
| JP2002086664A (en) * | 2000-09-12 | 2002-03-26 | Tohoku Ricoh Co Ltd | Multi-color printing device and printing system |
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| 《今日印刷》 20020331 网屏（中国）有限公司 革命性的网点技术-混合型网点技术"视必达" , 第3期 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260570A (en) * | 2014-08-29 | 2015-01-07 | 深圳市冠为印务有限公司 | Novel visual anti-counterfeit printing method |
| CN111683818A (en) * | 2019-01-11 | 2020-09-18 | 中钞光华印制有限公司 | Manufacturing method of multicolor fluorescent product, multicolor fluorescent product and fluorescent handicraft |
| CN111683818B (en) * | 2019-01-11 | 2022-03-18 | 中钞光华印制有限公司 | Manufacturing method of multicolor fluorescent product, multicolor fluorescent product and fluorescent handicraft |
| CN109808323A (en) * | 2019-01-22 | 2019-05-28 | 山东天惠印刷有限公司 | Multiple linked network printing technology |
| CN111127483A (en) * | 2019-12-24 | 2020-05-08 | 北大方正集团有限公司 | Color image processing method, device, equipment, storage medium and system |
| CN111127483B (en) * | 2019-12-24 | 2023-09-15 | 新方正控股发展有限责任公司 | Color picture processing method, device, equipment, storage medium and system |
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| CB02 | Change of applicant information |
Address after: 510280, No. 83 swallow Road South, Guangzhou, Guangdong, Haizhuqu District Applicant after: The People's Printing Plant of Guangzhou Co., Ltd. Address before: 510280, No. 83 swallow Road South, Guangzhou, Guangdong, Haizhuqu District Applicant before: The People 's Printing Plant of Guangzhou |
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Application publication date: 20121003 |