CN102490508A - Method for manufacturing anti-counterfeiting printing product - Google Patents
Method for manufacturing anti-counterfeiting printing product Download PDFInfo
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- CN102490508A CN102490508A CN201110428568XA CN201110428568A CN102490508A CN 102490508 A CN102490508 A CN 102490508A CN 201110428568X A CN201110428568X A CN 201110428568XA CN 201110428568 A CN201110428568 A CN 201110428568A CN 102490508 A CN102490508 A CN 102490508A
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Abstract
The invention discloses a method for manufacturing an anti-counterfeiting printing product. The method comprises the following steps: A. loading an image suitable to be printed into a computer; B. converting the dominant tone of the image into a bitmap and screening the bitmap manually; C. converting the bitmap into a grayscale image with the proportion of 1:1; D. fabricating anti-counterfeiting characters or patterns on the grayscale image and generating a new layer; E. forming a movable new layer; F. converting the movable new layer into a bitmap; G. converting the subsidiary tone of the image into a bitmap; and H. printing the file of the image. The method has the following beneficial effects: with the adoption of the optical interference principle, the printing product with the anti-counterfeiting function can be manufactured by utilizing common software, so that manufacturing cost in generation is greatly saved; in addition, the anti-counterfeiting patterns can be effectively blended into the design of the product or made to become one part of the image-text information, and the anti-countering property is good.
Description
Technical field
The present invention relates to a kind of anti-counterfeit printing field, particularly relate to a kind of preparation method of utilizing the false proof printing of light perturbation technique.
Background technology
The film is separated to be locked on the anti-counterfeiting technology market and is occurred for many years, and is widely used on the packing and label of commodity, like Chinese toothpaste, SmithKline medicine box, the anti-fake label of drinks etc.But any one anti-counterfeiting technology all can cause technology to leak because of the overlong time of on market, using or imitated its anti-fake effect that loses of quilt.So further investigation meets the requirement of market development.
So-called film release is meant the superfine striped making picture and text that utilize meticulous printshop to reach; After being reflected on the printed matter; Naked eyes all can't be differentiated its content with duplicating to amplify, and the principle of utilization interference has only the identification diaphragm with coupling to superpose high-visible with translation-angle observation ability with it.
Existing anti-fake product all need be selected false proof software for use on the market, as, monochromatic single angle free hand drawing literary composition, Fig. 1 a is the shading enlarged drawing, and Fig. 1 b is the diaphragm enlarged drawing, and Fig. 1 c is diaphragm and shading stack sketch map.Shown in Fig. 1 a and Fig. 1 b, monochromatic single angle free hand drawing literary composition, shading is an individual layer shading single color printing, directly perusal can't identification icon, can know demonstration " very " word when being placed on identification card after its top is observed.Shown in Fig. 1 b, diaphragm is the slanted bar line pattern of one group of rule; Shading is one group of striped by same width and arrangement shown in Fig. 1 a, and different is that wherein a part is not corresponding with position on every side, produces wrong row (irising out several examples with the form of circle on the figure), and the part of wrong row forms " very " word.Shown in Fig. 1 c, see that separately shading " very " can't distinguish, but can produce the light interference principle when putting diaphragm in the above, can be clearly seen that " very " word.
As, double-colored pair of angle digraph literary composition, Fig. 2 a is the shade color that includes first kind of false proof literal; Fig. 2 b is the shade color that includes second kind of false proof literal; Fig. 2 c is two kinds of design sketch after the shade color stack.Shading is double-deck shading two color printing, and directly perusal can't identification icon, can know first kind of false proof literal of demonstration when being placed on identification card after its top is observed, and can show second kind of false proof literal after being rotated counterclockwise 90 ° to identification card then.Its principle is the same with single angle free hand drawing literary composition just to increase a kind of different angles again but the identical striped of width.More than two kinds of existing shortcomings of method for anti-counterfeit be, make this anti-counterfeiting mark and all use professional false proof software, cost is higher; In addition, the false proof degree of monochromatic single angle is low, but does not influence the integral color effect of packing material; The double-colored pair of false proof degree of angle is high, but because two dark stacks, false proof part approaches dark purple or black, can influence the overall color effect.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of and can accomplish false proof printing through popular software and make, and simultaneously, can security pattern be incorporated the preparation method of the false proof printing in the product pattern.
The technical scheme that the present invention adopted is: a kind of preparation method of false proof printing may further comprise the steps:
The image that A. will be fit to print is written into computer;
B. convert the image dominant hue into bitmap and artificial screening;
C. convert bitmap into gray-scale map in the 1:1 ratio;
D. on gray-scale map, make false proof literal or pattern, and generate new layer;
E. move new layer;
F. will move new layer and convert bitmap into;
G. the image parachrome is turned and changed into bitmap;
H. print image file.
The image of said steps A comprises that resolution ratio reaches 300dpi or above jpg, tif, psd, bmp, the eps file of 300dpi.
The artificial screen frequency of said step B is between 150 ~ 200.
The displacement of said step e is half site.
The invention has the beneficial effects as follows: through the light interference principle, utilize popular software to make and have anti-fraud functional printing, significantly practiced thrift the generation cost of manufacture; Simultaneously; Can effectively security pattern be incorporated in the design of product, or become the part of product picture and text, antifalsification is good.
Description of drawings
Fig. 1 a to Fig. 1 c is existing monochromatic false proof sketch map;
Fig. 2 a to Fig. 2 c is existing double-colored false proof sketch map;
Fig. 3 is the image file that is written into;
Fig. 4 is the false proof literal of making or the sketch map of figure;
Fig. 5 is the sketch map that converts bitmap into of fuchsin version;
Fig. 6 moves the figure layer sketch map that half site distance is arranged according to false proof literal or pattern on the fuchsin version;
Fig. 7 is the image file sketch map that is printed with false proof literal or figure;
Fig. 8 a to Fig. 8 c diaphragm identification card with include false proof character image with the stack after design sketch.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further explain:
The preparation method of false proof printing of the present invention is to develop through the principle that light disturbs, and accomplishes the making of false proof printing through popular software.
The selection of site angle in press is an important problem.Select the principle of site angle to be: to make the directionality of the site of screening formation do not perceiveed out by human eye as far as possible; And the more important thing is the collocation that to note polychrome version site angle in the polychrome printing; In order to avoid produce " moire "; " moire " also often is known as " hitting net " in different regions, and above-mentioned phenomenon the present invention is referred to as " hitting net ".
When the pattern of any two kinds of periodic structures is superimposed, can produce the third periodic patterns, this pattern is referred to as Moire fringe, when Moire fringe is very eye-catching, will cause the interference to normal picture, and this interference is referred to as " hitting net ".
When the arrangement angle difference of the pattern of any two kinds of periodic structures was superimposed more than or equal to 30 degree, the Moire fringe of generation was the lightest.And differential seat angle is more than or equal to 22.5 degree when being superimposed, and the Moire fringe of generation takes second place.The net angular difference that China adopts be to spend more than or equal to 30 that this is a kind of.
For single color printing, only need a kind of site angle, often select 45 degree for use.
For two color printing, need two kinds of site angles, often select two angles of 45 degree and 75 degree (15 degree) for use.
For four-color process, then need four kinds of site angles, general normal 15 degree, 45 degree, 75 degree, 90 these four angles of degree selected for use.Because the differential seat angle between 75 degree and 90 degree or 90 degree and 15 degree not have to satisfy the requirement of 30 degree, so printed matter is often because of there is the rose speckle in such angular arrangement, and the rose speckle belongs to faulty materials in normal printing, needs demote or waste disposal.
The present invention utilizes dominant hue and the diaphragm of image that " hitting net " takes place: put that the security pattern of pattern and requirement forms different " rose speckle " around the diaphragm relief, let security pattern display, reach false proof purpose.
The preparation method of the false proof printing of the present invention may further comprise the steps: the image that A. will be fit to print is written into computer, and the pixel format that can be written into is for reaching 300dpi or above jpg, tif, psd, bmp, the eps file of 300dpi with resolution ratio; B. convert the image dominant hue into bitmap and artificial screening; C. convert bitmap into gray-scale map in the 1:1 ratio; D. on gray-scale map, make false proof literal or pattern, and generate new layer; E. move new layer, displacement is half site; F. will move new layer and convert bitmap into; G. the image parachrome is turned and changed into bitmap; H. print image file.
Embodiment 1: existing is 300dpi with file resolution ratio, and suffix is that the pattern of tif is that example describes.
Can know to steps A and step B:
In Adobe Illustrator, open the image that suffix is tif, as shown in Figure 3;
Passage is CMYK, cyan, fuchsin, yellow and black;
Judge that according to image fuchsin passage site is positioned between 50% ~ 60%, and be dominant hue; Pay special attention to: confirm dominant hue according to the image that is written into, as be written into image cyan passage and be positioned between 50% ~ 60% that mass-tone is adjusted to blue look, confirm to hit the passage and the tone of net according to the image that is written into; The present invention is because mass-tone lays particular stress on fuchsin, so the fuchsin version is done in selection and diaphragm generation " hitting net " is disturbed false proof as light; The general pattern screening can carry out in rip (image rasterization of laser photocomposing machine) lining automatically; But this method for anti-counterfeit utilization is exactly the variation of site; So necessary artificial screening; What specify is that artificial screen frequency can be self-defined with cable angle, and the line number needs only between 150 ~ 200, all right as long as angle differs the 30 degree left and right sides;
The processing of fuchsin version: because antifalse effect mainly goes out on this piece version; So it is complicated that preparation method is wanted; So following steps C ~ F does to the fuchsin version: delete other three passages, change into bitmap, meticulous printing screening 175 line/inches; Normal 15 degree of fuchsin version angle, dot shape selects to use more ellipse site;
See that through the effect enlarged drawing site is an ellipse, the site angle is 75 degree.
Step C converts bitmap into gray-scale map in the 1:1 ratio;
Step D. makes false proof literal through the Type tool on the gray-scale map of fuchsin plate, as shown in Figure 4, and along the peripheral constituency that generates, the constituency picture and text are created independent one deck on old picture and text, and generates new layer, and is as shown in Figure 5;
Step e is amplified new layer, and this one deck that angular movement is created along vertical site moves the distance of half site, and is as shown in Figure 6;
Step F. will move new layer and convert bitmap again into old layer merging;
The processing of step G. cyan version: delete other three passages, change into bitmap, meticulous printing screening 175 line/inches, normal 15 degree of blue or green version angle, dot shape selects to use more ellipse site;
The processing of yellow version: the same other three passages that delete with the cyan version change into bitmap, meticulous printing screening 175 line/inches, normal 0 degree of yellow version angle;
The processing of black print: the same other three passages that delete with the cyan version change into bitmap, meticulous printing screening 175 line/inches, normal 45 degree of black print angle;
Step H. accomplishes the most basic cmyk figure that printing needs, and as shown in Figure 7, the image of Fig. 7 is actual visually not to have any difference with Fig. 3.
Fig. 8 a to Fig. 8 c diaphragm identification card with include false proof character image with the stack after design sketch.Wherein, Fig. 8 a is the diaphragm identification card; Fig. 8 b has performed false proof printed matter; Fig. 8 c is the design sketch after the stack.
The preparation method and the prior art that are used to detect false proof printing diaphragm are identical, it should be noted that to realize hitting with red version that net is must the diaphragm angle identical with red version normally 75 spends, and other repeat no more.
The present invention utilizes printing commonly used to make software can reach antifalse effect; Cost significantly reduces, and it is false proof that this method can use a kind of color to realize, anti-counterfeiting mark can better incorporate whole picture and text; Even can become the part of picture and text, have better antifalse effect.
Claims (4)
1. the preparation method of a false proof printing is characterized in that, may further comprise the steps:
The image that A. will be fit to print is written into computer;
B. convert the image dominant hue into bitmap and artificial screening;
C. convert bitmap into gray-scale map in the 1:1 ratio;
D. on gray-scale map, make false proof literal or pattern, and generate new layer;
E. move new layer;
F. will move new layer and convert bitmap into;
G. the image parachrome is turned and changed into bitmap;
H. print image file.
2. the preparation method of false proof printing according to claim 1 is characterized in that, the image of said steps A comprises that resolution ratio reaches 300dpi or above jpg, tif, psd, bmp, the eps file of 300dpi.
3. the preparation method of false proof printing according to claim 1 is characterized in that, the artificial screen frequency of said step B is between 150 ~ 200.
4. the preparation method of false proof printing according to claim 1 is characterized in that, the displacement of said step e is half site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110428568XA CN102490508A (en) | 2011-12-20 | 2011-12-20 | Method for manufacturing anti-counterfeiting printing product |
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| CN201110428568XA CN102490508A (en) | 2011-12-20 | 2011-12-20 | Method for manufacturing anti-counterfeiting printing product |
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| CN102490508A true CN102490508A (en) | 2012-06-13 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104574464A (en) * | 2015-01-08 | 2015-04-29 | 北京东港安全印刷有限公司 | Random matrix moire fringe anti-fake pattern and manufacturing method thereof |
| CN103903216B (en) * | 2014-03-11 | 2017-01-18 | 陕西科技大学 | Determination method based on raster anti-fake concealed image vector diagram line width |
| CN108621534A (en) * | 2018-05-09 | 2018-10-09 | 上海紫恩数码科技有限公司 | Network detecting method is hit before the plate-making of different resolution mixed printing |
| CN114148102A (en) * | 2021-12-22 | 2022-03-08 | 贵州劲嘉新型包装材料有限公司 | Anti-counterfeiting packaging box printing structure with packaging film and printing method thereof |
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| CN102122384A (en) * | 2011-01-25 | 2011-07-13 | 机密科技公司 | Method for manufacturing hidden pattern during plate making for presswork |
| JP4915883B2 (en) * | 2008-09-16 | 2012-04-11 | 独立行政法人 国立印刷局 | Printed matter for preventing forgery, method for producing the same, and recording medium storing software for producing halftone data |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903216B (en) * | 2014-03-11 | 2017-01-18 | 陕西科技大学 | Determination method based on raster anti-fake concealed image vector diagram line width |
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| CN104574464B (en) * | 2015-01-08 | 2017-07-14 | 北京东港安全印刷有限公司 | A kind of false proof grain pattern of random matrix Moire fringe and preparation method thereof |
| CN108621534A (en) * | 2018-05-09 | 2018-10-09 | 上海紫恩数码科技有限公司 | Network detecting method is hit before the plate-making of different resolution mixed printing |
| 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 |
| CN114148102A (en) * | 2021-12-22 | 2022-03-08 | 贵州劲嘉新型包装材料有限公司 | Anti-counterfeiting packaging box printing structure with packaging film and printing method thereof |
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Application publication date: 20120613 |