CN103213415B - Method for making latent image pattern with color changing effect by adopting silk-screen and offset printing processes - Google Patents
Method for making latent image pattern with color changing effect by adopting silk-screen and offset printing processes Download PDFInfo
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- CN103213415B CN103213415B CN201310079166.2A CN201310079166A CN103213415B CN 103213415 B CN103213415 B CN 103213415B CN 201310079166 A CN201310079166 A CN 201310079166A CN 103213415 B CN103213415 B CN 103213415B
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Abstract
The invention relates to a method for making latent image patterns with a color changing effect by adopting silk-screen and offset printing processes. Ink with an optical color changing effect is used for printing a light-sensitive color changing pattern A, and common offset printing ink is used for printing a pattern B in the range of the pattern A, wherein the color difference between the pattern A and the pattern B satisfies the conditions that DL is less than or equal to 40, DC is more than or equal to negative 17 and less than or equal to 10, and DH is less than or equal to 9. The method provided by the invention has the advantages of good representation form, fast speed, good effect and low process cost.
Description
Technical field:
The present invention relates to field of anti-counterfeit technology, particularly relate to and adopt silk-screen, offset printing process to make the method with the latent image pattern of color changeable effect.
Background technology:
In field of anti-counterfeit technology, main OVI ink of employing (optically-variable look anti-forgery ink) realization has the pattern printing of phototropic effect.OVI ink is very high to the requirement of thickness, and the general technique of gravure or silk screen that adopts is printed.OVI pattern does not generally adopt meticulous print lines in design, and to become effect relevant with ensureing to have good light by pattern for this.Therefore cannot directly OVI be applied as latent image pattern.
The disguise of the pattern of the making emphasis of latent image or hidden pattern, whether irrelevant pattern has color changeable effect.Usual employing carved gravure technique realizes, and also has and adopts offset printing process to realize by the improvement of plate-making technology.
The latent image design producing being formed and have optic metachromatic that combined with latent image or hidden pattern by color changeable effect is be described in 200810045703.0 " method for producing invisible pattern of OVI photochromatic printing ink " at application number.Its preparation method is realized by three steps: the first step, printing OVI photochromatic printing ink; Second step, makes hidden pattern metallograph; 3rd step, applies pressure with thermoprint marking press to metallograph, shows stealthy grain pattern by the height of paper.This technology is according to common marking press, though have the good form of expression, but speed is slow, is not suitable for producing in enormous quantities.According to carved gravure machine, though speed is fast, effective, process costs is high.
Summary of the invention:
For the deficiency that prior art exists, the object of the present invention is to provide and a kind ofly adopt silk-screen, latent image or method for producing invisible pattern that the conventional printing process of offset printing society realizes having color changeable effect.This preparation method simple and flexible, highly versatile.
Goal of the invention of the present invention is achieved through the following technical solutions.
Adopt silk-screen, offset printing process to make a method with the latent image pattern of color changeable effect, comprise the steps:
1), with the ink printing optic metachromatic pattern A with optic metachromatic effect,
2), with common offset ink printed patterns B within the scope of pattern A, the color distortion of pattern A and pattern B is DL≤40 and-17≤DC≤10 and DH≤9.
1st) the optic metachromatic pattern of step adopts the ink printing with optic metachromatic effect, as OVI or OVMI.Adopt silk-screen or carved gravure printing.
Color data adopts DATACOLOUR SF600 test, and software is Color QCv1.3.Test condition is D65 light source, comprises bright luster, comprises UV, and 6.6mm tests aperture.This data area can be variant with the difference of tester or test condition.
The latent scape pattern with color changeable effect obtained by the inventive method or product, can observe two kinds of different patterns by changing visual angle, reaching false proof object with this.
The present invention breaks dependence imprint process, and in conjunction with optical disclour printing inks such as OVI, OVMI, employing silk-screen, the conventional printing process of offset printing society realize latent image or the method for producing invisible pattern with color changeable effect, this preparation method has the good form of expression, and speed is fast, effective, process costs is low.
Accompanying drawing illustrates:
Fig. 1 be with the inventive method make pattern at 90 ° of observing effect figure;
Fig. 2 be with inventive method make pattern at 45 ° of observing effect figure.
Detailed description of the invention
Illustrate how the present invention realizes below in conjunction with embodiment.
Embodiment 1
The first step: green with OVI(red stain) ink, the large five-pointed star pattern of silk screen 200 order printing and octagonal star pattern.
Second step: the little five-pointed star of offset printing and grid octagonal star pattern.OVI red color gap in offset printing ink colors used and the first step is DL=26.30, DC=-5.11, DH=1.96.The pattern finally printed off, observes at vertical angle and can see a large five-pointed star and a large octagonal star pattern respectively.45 ° of observations, can see in former large five-pointed star and also comprise a little five-pointed star pattern; A little grid octagonal star pattern is also comprised in former octagonal star pattern.
Design sketch is as 1,2, and change view can see two kinds of different pattern effects.
Claims (3)
1. adopt silk-screen, offset printing process to make a method with the latent image pattern of color changeable effect, comprise the steps:
1), adopt the ink printing optic metachromatic pattern A with optic metachromatic effect, described ink printing mode is silk-screen or carved gravure printing;
2), with common offset ink printed patterns B within the scope of pattern A;
Described 2) the common offset ink and 1 in step) color distortion of optical disclour printing ink in printing in step meet DL≤40 and-17≤DC≤10 and DH≤9, described color data adopts DATACOLOUR SF600 test, software is ColorQCv1.3, test condition is D65 light source, comprise bright luster, comprise UV, 6.6mm tests aperture.
2. according to claim 1ly a kind ofly adopting silk-screen, offset printing process to make to there is the method for the latent image pattern of color changeable effect, it is characterized in that, described 1) ink that adopts in step is optically-variable look anti-forgery ink or optically-variable look magnetic ink.
3. the latent image pattern with color changeable effect wanting method described in 1 to obtain according to right or product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310079166.2A CN103213415B (en) | 2013-03-13 | 2013-03-13 | Method for making latent image pattern with color changing effect by adopting silk-screen and offset printing processes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310079166.2A CN103213415B (en) | 2013-03-13 | 2013-03-13 | Method for making latent image pattern with color changing effect by adopting silk-screen and offset printing processes |
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| Publication Number | Publication Date |
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| CN103213415A CN103213415A (en) | 2013-07-24 |
| CN103213415B true CN103213415B (en) | 2015-07-22 |
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| CN201310079166.2A Active CN103213415B (en) | 2013-03-13 | 2013-03-13 | Method for making latent image pattern with color changing effect by adopting silk-screen and offset printing processes |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707667B (en) * | 2013-12-31 | 2016-04-20 | 北京握奇数据系统有限公司 | Card gradual change pearly-lustre printing technology |
| CN104149504A (en) * | 2014-08-20 | 2014-11-19 | 传虹科技(天津)有限公司 | Processing method of anti-counterfeiting printed products |
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| JPS6188268A (en) * | 1984-10-05 | 1986-05-06 | Konishiroku Photo Ind Co Ltd | Electrophotographic sensitive body, its manufacture and formaton of image |
| JPH02127078A (en) * | 1988-11-07 | 1990-05-15 | Ookurashiyou Insatsu Kyokucho | Combination print of offset printing having latent image design and intaglio printing and printing method thereof |
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| CN1403652A (en) * | 2002-09-25 | 2003-03-19 | 康文朝 | Color veiled-image anti-fake paper and its making process |
| JP2008265189A (en) * | 2007-04-23 | 2008-11-06 | National Printing Bureau | Printed matter for preventing forgery |
| CN101327697A (en) * | 2008-07-31 | 2008-12-24 | 中国印钞造币总公司 | Method for producing invisible pattern of OVI light color-changing printing ink |
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| CN103213415A (en) | 2013-07-24 |
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Address after: 200063 158 Cao Yang Road, Shanghai, Putuo District Patentee after: SHANGHAI BANKNOTE PRINTING Co.,Ltd. Patentee after: China Banknote Printing and Minting Group Co.,Ltd. Address before: 200063 158 Cao Yang Road, Shanghai, Putuo District Patentee before: SHANGHAI BANKNOTE PRINTING Co.,Ltd. Patentee before: CHINA BANKNOTE PRINTING AND MINTING Corp. |
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