CN105500894B - Polychrome netting twine double exposure hits net simulation tool - Google Patents
Polychrome netting twine double exposure hits net simulation tool Download PDFInfo
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- CN105500894B CN105500894B CN201510990581.2A CN201510990581A CN105500894B CN 105500894 B CN105500894 B CN 105500894B CN 201510990581 A CN201510990581 A CN 201510990581A CN 105500894 B CN105500894 B CN 105500894B
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- polychrome
- double exposure
- netting twine
- round
- base
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/12—Multicolour formes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/14—Forme preparation for stencil-printing or silk-screen printing
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Abstract
The invention discloses a kind of polychrome netting twine double exposure to hit net simulation tool, including base, fixed pointers and a pair of films, fixed pointers are vertical in the card of base, two films are provided with identical round simulation region, screen frequency in two round simulation regions is identical, it is overlapping above and below two films and be sheathed in fixed pointers and be placed in the card of base by perforation and regional center is equipped with a perforation, it can be horizontally rotated respectively by axle center of fixed pointers.The present invention hits net principle using Moire fringe principle and printing, pass through cable angle, plate-making line number, the dynamic change of dot shape, net special-effect is hit in Fast simulation printing complicated and changeable, and print the ingenious implantation product packaging of effect in (flexo), to reach high-level antifalse effect.
Description
Technical field
Net simulation tool is hit the invention belongs to printing technology, more particularly to a kind of polychrome netting twine double exposure.
Background technology
At present, flexographic plate polychrome netting twine double exposure generally to select pool it is identical plate-making line number, set screen angle (such as 7.5 degree,
37.5 degree, 67.5 degree, 82.5 degree), formed objects and generally circular in cross section site shield printing reticulate pattern and interference fringe.
Above-mentioned line number i.e. screen frequency, unit are L/IN, i.e. how many site of per inch.For example, 300L/IN
That is per inch has 300 sites, 150L/IN is exactly 150 sites of per inch, and the image of the higher representative printing of line number is more clear
It is clear.Site size is the coverage rate (%) of site, and site is bigger, and the inking of unit area is more, and color is also deeper.And polychrome net
Line double exposure is the netting twine double exposure of more than dichromatism (yellow, blue or green, pinkish red, black, spot color), passes through the superposition of two or more basic colors
To produce the printing effect of the color required for the third.
In plate making, the selection of angle of halftone screen line has vital effect, will if the angle of halftone screen line of selection mistake
The defects of printing reticulate pattern and interference fringe occurs.However, in actual printing process, even if using above-mentioned first retainer and circle
Shape site, the defects of printing reticulate pattern and interference fringe can not be also shielded completely, and it is big for different plate-making line numbers, different sites
Small printing, selected screen angle are not quite similar, and therefore, each adjustment angle, it is necessary to can just know effect after the printing
Fruit, it is very difficult, cumbersome so as to cause to obtain corresponding optimal screen angle, and also improve financial cost.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of polychrome netting twine double exposure and hit net simulation tool, can simulate
Polychrome netting twine double exposure hits net effect, and then obtains optimal angle of halftone screen line.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：
A kind of polychrome netting twine double exposure hits net simulation tool, including base, fixed pointers and a pair of films, fixed pointers are hung down
Straight two films are provided with identical round simulation region in the card of base, the screening line in two round simulation regions
Number is identical, and regional center is equipped with a perforation, overlapping above and below two films and be sheathed on juxtaposition in fixed pointers by perforation
In in the card of base, can be horizontally rotated respectively by axle center of fixed pointers.
Dot shape, site size are also identical in the two round simulations region.
Angular coordinate is equipped with the round simulation region.
Reference axis is equipped with the round simulation region.
The round simulation region is radially divided into several subregions, and the site between subregion is of different sizes.
The card of the base is transparent material, and the inside of the base is provided with light source.
Net simulation tool is hit using the polychrome netting twine double exposure of the present invention, had the following advantages that：
1st, can real simulation polychrome netting twine double exposure hit net effect, clear reflection printing reticulate pattern and interference fringe situation, with
Optimal angle of halftone screen line is obtained, so as to improve printing effect, avoids the wasting of resources.
2nd, net principle is hit using Moire fringe principle and printing, passes through cable angle, plate-making line number, the dynamic of dot shape
Change, net special-effect is hit in Fast simulation printing complicated and changeable, and the ingenious implantation product packaging of effect is printed in (flexo),
Reach high-level antifalse effect.
3rd, net special-effect and complicated interference fringe are hit using printing using reverse, can thoroughly discharges set screen angle
Constraint, angle of halftone screen line range of choice 0-90 degree, screen frequency also can flexible combination, flexibly arranged in pairs or groups from low line to high line, such as：
Flexographic plate packages printing 80L/IN -175L/IN；The matched combined effect of different dot shapes can even be simulated.
4th, it is simple in construction, easy to use, interference fringe effect can be fast and accurately prejudged, is had quick, simple, accurate
Really, flexibly, it is inexpensive the features such as.
Brief description of the drawings
Fig. 1 is that the polychrome netting twine double exposure of the present invention hits the structure principle chart of net simulation tool；
Fig. 2 is the structural representation of the film of the present invention；
Fig. 3-Fig. 6 is respectively the structural representation in the round simulation region of the various parameters of the present invention.
Embodiment
The polychrome netting twine double exposure of the present invention hits net simulation tool as shown in figure 1, it includes base 1, fixed pointers 2 and a pair
Film 3, fixed pointers 2 are vertical in the card 11 of base 1, as shown in Fig. 2 two films 3 are square, rectangle or other
Shape, identical round simulation region 4 is which is provided with, at least screen frequency is identical in two round simulation regions 4.It is preferred that two circles
Screen frequency, dot shape, site size all same in shape simulated domain 4, and regional center is equipped with a perforation, two films
About 3 is overlapping and be sheathed in fixed pointers 2 and be placed in the card 11 of base 1 by perforation, can be respectively with fixed pointers 2
Horizontally rotated for axle center.Angular coordinate is equipped with the round simulation region 4, and on the round simulation region 4
Provided with reference axis.In this way, when a wherein film 3 rotates, the simulation double exposure between two round simulation regions 4 hits net effect
(such as print reticulate pattern and interference fringe) can change with the change of the anglec of rotation, by and observe in two round simulation regions 4
The printing reticulate pattern and interference fringe situation of simulation, with optimal angle of halftone screen line corresponding to acquisition.
Herein it should be noted that film 3 can be as needed, such as different screen frequencies, different dot shape, no
Same site size and combination (such as Fig. 2-Fig. 6), to make corresponding multipair, the above-mentioned parameter all same of every a pair of films 3,
During simulation, only it need to carry out selecting the corresponding use of a pair of films 3 according to the actual requirements.
When making film 3, only a kind of site size, such as whole in the round simulation region 4 of film 3 can be made
Site size in individual round simulation region 4 is all 30%；It can certainly use the radial direction decile of round simulation region 4
For several subregions, the site between each subregion is of different sizes, such as Fig. 2, the round simulation region 4 are divided by axis of abscissas
Into upper and lower two subregions, upper subregion and the site in lower subregion are of different sizes, i.e., the site size in upper region is
30%, the site size in lower region is 20%, in this way, being rotated again after two such identical film 3 aligns, at 180 °
In rotating range, it can observe that two kinds of respective double exposures of site size hit net effect simultaneously.Certainly, according to symmetry principle, go back
Round simulation region 4 can be divided into by reference axis in length and breadth by four subregions, each subregion is a kind of site size, so that it may
To observe that the double exposure of four kinds of different site sizes hits net effect in being rotated by 90 °, cost has more been saved.In addition, not only
It is site size, can also be as needed, it is corresponding to obtain using other different parameters or parameter combination in each subregion
Effect.
The card 11 of base 1 is circle, is made using transparent material, and is provided with lighting source 5 in the inside of base 1,
By lighting source 4 in back illuminated, it can more facilitate, simulation effect is clearly viewed.
The double exposure that the progress of net simulation tool is hit using the polychrome netting twine double exposure of the present invention hits net simulation (test) method, specifically
Comprise the following steps：
A. according to simulation demand, a pair of films 3 of relevant parameter are selected, and the film 3 has identical circular mode
Intend region 4 and screen frequency in two round simulation regions 4, dot shape, site size all same, two films 3 are mutual
After overlapping alignment, it is placed on by central hole in the fixed pointers 2 of base 1；
B. a wherein film 3 is rotated according to the angular coordinate set on round simulation region 4, and observes two round simulation areas
Printing reticulate pattern and interference fringe situation in domain 4, and optimal angle of halftone screen line corresponding to acquisition.
Step b's comprises the following steps that：
B1. first the round simulation region 4 of two films 3 is positioned to zero-bit；
B2. a wherein film 3 is rotated, and estimates and hits net effect；
B3. optimum efficiency is selected, and carries out photographing to record visual effect, records angle of halftone screen line now and corresponding net
Point size, screen frequency, dot shape.
After the parameter of record is imported into the specific place of product documentation, then by corresponding process parameters design, RIP, plate-making,
Finally printed by this, you can optimal printing effect is obtained, the defects of avoiding that printing reticulate pattern and interference fringe occurs.
But those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to explanation originally
Invention, and be not used as limitation of the invention, as long as in the spirit of the present invention, to embodiment described above
Change, modification will all fall in the range of claims of the present invention.
Claims (6)
1. a kind of polychrome netting twine double exposure hits net simulation tool, it is characterised in that：Including base, fixed pointers and a pair of films,
Fixed pointers are vertical in the card of base, and two films are provided with identical round simulation region, two round simulation regions
Interior screen frequency is identical, and regional center is equipped with a perforation, overlapping above and below two films and be sheathed on fixation by perforation
It is placed in the card of base, can be horizontally rotated respectively by axle center of fixed pointers on pointer, the card of the base
For transparent material.
2. polychrome netting twine double exposure according to claim 1 hits net simulation tool, it is characterised in that：The two round simulations area
Dot shape, site size are also identical in domain.
3. polychrome netting twine double exposure according to claim 1 or 2 hits net simulation tool, it is characterised in that：Two circular mode
Intend being equipped with angular coordinate on region.
4. polychrome netting twine double exposure according to claim 3 hits net simulation tool, it is characterised in that：The two round simulations area
Reference axis is equipped with domain.
5. polychrome netting twine double exposure according to claim 1 hits net simulation tool, it is characterised in that：The two round simulations area
Domain is radially divided into several subregions, and the site between subregion is of different sizes.
6. the polychrome netting twine double exposure according to claim 2 or 5 hits net simulation tool, it is characterised in that：The base it is interior
Portion is provided with light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510990581.2A CN105500894B (en) | 2015-12-24 | 2015-12-24 | Polychrome netting twine double exposure hits net simulation tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510990581.2A CN105500894B (en) | 2015-12-24 | 2015-12-24 | Polychrome netting twine double exposure hits net simulation tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105500894A CN105500894A (en) | 2016-04-20 |
| CN105500894B true CN105500894B (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510990581.2A Active CN105500894B (en) | 2015-12-24 | 2015-12-24 | Polychrome netting twine double exposure hits net simulation tool |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107128094B (en) * | 2017-06-28 | 2022-11-08 | 浙江华丽达包装有限公司 | Multi-screen line anti-counterfeiting printing machine |
| CN108621534B (en) * | 2018-05-09 | 2020-02-14 | 上海紫恩数码科技有限公司 | Method for detecting screen collision before mixed printing platemaking with different resolutions |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5604761B2 (en) * | 2009-11-11 | 2014-10-15 | 健治 吉田 | Print medium, information processing method, information processing apparatus |
| US20150013558A1 (en) * | 2013-07-15 | 2015-01-15 | Xerox Corporation | Treatment of prints for improving overcoat integrity |
| CN104424164B (en) * | 2013-09-04 | 2017-04-26 | 北大方正集团有限公司 | Handling method and device for transparent form rasterization |
| CN205272808U (en) * | 2015-12-24 | 2016-06-01 | 上海紫泉标签有限公司 | Polychrome net twine double exposure hits net simulation tool |
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