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CN103722921A - Secondary screening printing anti-counterfeiting method - Google Patents

Secondary screening printing anti-counterfeiting method Download PDF

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Publication number
CN103722921A
CN103722921A CN201310702886.XA CN201310702886A CN103722921A CN 103722921 A CN103722921 A CN 103722921A CN 201310702886 A CN201310702886 A CN 201310702886A CN 103722921 A CN103722921 A CN 103722921A
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China
Prior art keywords
screening
printing
counterfeiting
security pattern
antiforge
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CN201310702886.XA
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CN103722921B (en
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戴俊萍
王强
杨燕西
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Hangzhou Sheng Yuan Yinwu Co Ltd Of Daily Paper Journalism Group
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Hangzhou Dianzi University
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Abstract

The invention provides a secondary screening printing anti-counterfeiting method. The method specifically includes: firstly, establishing a secondary screening printing anti-counterfeiting pattern information database; secondly, printing and testing secondary screening printing anti-counterfeiting patterns; thirdly, acquiring printing production data with secondary screening anti-counterfeiting pattern information; fourthly, establishing a digital CTP (computer to plate) output process control system to realize digital control of plate chamber temperature, humidity, developing solution concentration, solution compensation dosage, flush temperature, flush time, solution conductivity and PH (potential of hydrogen) value and guarantee accurate output of anti-counterfeiting data on a printing plate and repeatability of repeated output. Non-reproducible special anti-counterfeiting patterns are obtained by means of data fusion operation of screening data, and a mode of software and hardware combination and precise flow process control is adopted to realize extremely low anti-counterfeiting cost and excellent printing anti-counterfeiting effect.

Description

A kind of two screening anti-counterfeiting printing method
Technical field
The present invention relates to a kind of anti-counterfeiting printing method, be specially a kind of two screening anti-counterfeiting printing method.
Background technology
At modern packaging process of producing product, particularly in expensive goods printing process, anti-counterfeiting technology application is the important technical that guarantees that product is not encroached right and palmed off, also be the core competitiveness key element that each printing enterprise captures printing market, study the focus that exclusive antifalse technology is becoming the research and development of products of high-end printing enterprise and capturing technology highland.
At present, in printing industry field, conventional anti-counterfeiting technology has laser hologram, anti-forgery ink, anti-forge paper, watermark, magnetic card, two-dimensional bar code etc., and these anti-counterfeiting technologies are common exists the high or not ideal enough problem being easily replicated of antifalse effect of false proof cost.Therefore, researching and developing the low and anti-forge method that is difficult for being replicated of a kind of false proof cost has great importance for the development of printing enterprise's enterprise market core competitiveness and whole printing packaging industry.
Summary of the invention
The object of the invention is, for the deficiencies in the prior art, to propose a kind of two screening anti-counterfeiting printing method.
The pattern that the present invention adopts software and hardware to combine, adopt 1-bit TIFF under multiple screening condition to merge computing and obtain a kind of novel site effect, then again merge and obtain complete print production data with normal print production data, by setting up CTP plate-making process control system, guarantee the accurate reproduction of site, print product can have been realized splendid antifalse effect.
The technical solution adopted for the present invention to solve the technical problems comprises the steps:
The foundation of step 1. two screening antiforge pattern-information database
Before 1-1. determine to print according to printing enterprise's printing sheets characteristic, ink characteristics, printing machine working condition and product performance during CTP plate-making, add network parameters, add network parameters and comprise site type, screen frequency, angle of halftone screen line;
1-2. design two screening antiforge special test mark version
Design has the special-purpose color lump of various CMYK dot percentages, forms two screening antiforge special test mark version;
Described CMYK dot percentage comprises from 5%, 10%, 15% ... 20 grades of sites of 100%;
Before 1-3. utilizes and prints, general screening software RIP adopts the different network parameters that adds to carry out screening to two screening antiforge special test mark version, obtains the 1-bit tiff file of the CMYK under different screening conditions;
The 1-bit tiff file that 1-4. obtains screening imports to general image process software Adobe Photoshop CS3 and merges calculation process, obtains the security pattern with special texture under nonidentity operation condition;
1-5. selects the security pattern of good results, take its RIP condition and Photoshop method for amalgamation processing to set up antiforge pattern-information database as feature;
The security pattern of described good results refer to security pattern from visually with antifalse effect equal satisfactory security patterns.
The printing test of step 2. two screening antiforge pattern
According to the requirement of batch production print product antiforge, from antiforge pattern-information database, select the security pattern matching with it to print test, will test the security pattern of the best security pattern of effect as batch production print product.
Step 3. is obtained the print production data with two screening security pattern information
Print production pdf document except security pattern is carried out to the output of RIP screening with normal mode, obtain 1-bit tiff file, then the security pattern data file it and step 2 being obtained merges, and obtains the complete 1-bit TIFF print production data file for CTP plate-making.
Step 4. is set up the Process Control System of digitized CTP forme output, realize the Digital Control of version room temperature, humidity, solution level, liquid compensation rate, flushing temperature, washing time, liquid electrical conductivity and pH value, guarantee the accurate output of false proof data on forme and the repeatability of repeatedly exporting.
1-bit tiff file described in step 1-3 is a plurality of 1-bit tiff files that obtain by different screen angles, screen frequency, dot shape are set in general RIP software before seal.
The security pattern of the special texture described in step 1-4 is to be merged and obtained by two or more 1-bit tiff files with specific screen frequency, screen angle and dot shape.
The print production data for CTP plate-making described in step 3, by obtaining after the false proof data of two screening and normal screening data fusion.
 
Beneficial effect of the present invention is as follows:
The present invention has adopted distinguished antiforge technology, before only needing to change seal, screening technological parameter just can form special and not reproducible pattern, thereby reach splendid antifalse effect, false proof cost is lower, and investment risk is almost nil, and in practical application production process, can control and combine with typography flow process, formation has non-reproduction and antiforge technology cheaply, can be widely applied to above various printed matters, particularly the external packing box of product.
Accompanying drawing explanation
Fig. 1 is flow chart of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
As shown in Figure 1, two screening anti-counterfeiting printing method, specifically comprises the following steps:
The foundation of step 1. two screening antiforge pattern-information database
Before 1-1. determine to print according to printing enterprise's printing sheets characteristic, ink characteristics, printing machine working condition and product performance during CTP plate-making, add network parameters, add network parameters and comprise site type, screen frequency, angle of halftone screen line;
1-2. design two screening antiforge special test mark version
Design has the special-purpose color lump of various CMYK dot percentages, forms two screening antiforge special test mark version; Wherein CMYK dot percentage comprises from 5%, 10%, 15% ... 20 grades of sites of 100%;
Before 1-3. utilizes and prints, general screening software RIP adopts the different network parameters that adds to carry out screening to two screening antiforge special test mark version, obtains the 1-bit tiff file of the CMYK under different screening conditions;
The 1-bit tiff file that 1-4. obtains screening imports to general image process software Adobe Photoshop CS3 and merges calculation process, obtains the security pattern with special texture under nonidentity operation condition;
1-5. selects the security pattern of good results, take its RIP condition and Photoshop method for amalgamation processing to set up antiforge pattern-information database as feature.Wherein the security pattern of good results refer to security pattern from visually with antifalse effect equal satisfactory security patterns.
 
The printing test of step 2. two screening antiforge pattern
According to the requirement of batch production print product antiforge, from antiforge pattern-information database, select the security pattern matching with it to print test, will test the security pattern of the best security pattern of effect as batch production print product.
Step 3. is obtained the print production data with two screening security pattern information
Print production pdf document except security pattern is carried out to the output of RIP screening with normal mode, obtain 1-bit tiff file, then the security pattern data file it and step 2 being obtained merges, and obtains the complete 1-bit TIFF print production data file for CTP plate-making.
Step 4. is set up the Process Control System of digitized CTP forme output, realize the Digital Control of version room temperature, humidity, solution level, liquid compensation rate, flushing temperature, washing time, liquid electrical conductivity and pH value etc., guarantee the accurate output of false proof data on forme and the repeatability of repeatedly exporting.
Described two screening method for anti-counterfeit, is characterized in that the 1-bit tiff file described in step 1-3, is a plurality of 1-bit tiff files that obtain by different screen angles, screen frequency, dot shape are set in general RIP software before seal.
Described two screening method for anti-counterfeit, the security pattern that it is characterized in that the special texture described in step 1-4 is to be merged and obtained by two or more 1-bit tiff files with specific screen frequency, screen angle and dot shape.
Described two screening method for anti-counterfeit, is characterized in that the print production data for CTP plate-making described in step 3, by obtaining after the false proof data of two screening and normal screening data fusion.
The present invention is at a kind of brand-new two screening anti-counterfeiting printing method that has that antifalse effect is poor, proposes on the basis that is easily replicated to domestic and international antiforge technology, has adopted practical Digital product flow and thermosensitive CTP technology of current global printing industry in implementation.
The pattern that the present invention adopts software and hardware to combine, formed key technology and control method are that respectively the data processing of product design in early stage and the exposure control of later stage forme output combine, on to the basis of modern digital print system and technical research, from the screening method of typography process, start with, by technological means, Antiforge is merged to computing and generate security pattern.This security pattern both can form regular security pattern according to user's request, also can form irregular security pattern according to particular demands.This security pattern, owing to having adopted special technical matters to process, is to be obtained or to be copied by conventional method, can obtain good antifalse effect.Adopt special technical matters control and screening method and parameter combinations can also create out multiple different security pattern.
The present invention is in the design of false proof test mark version, selected software is image processing software Adobe Photoshop CS and the Adobe Illustator CS that printing industry is general, designs in advance reference when meeting sample file confession user's selection of various different product feature requirement or designing in these softwares.Meanwhile, also prevent that same false proof data from being misapplied by different product, improve specificity and the value of two screening security pattern.
The present invention has adopted computing and the fusion of carrying out site before seal in image processing software Adobe Photoshop CS, the parameter combinations of calculating process is controlled and operation result visual, while having realized design, just can predict antifalse effect, and then realize the combination of antifalse effect and product appearance.Meanwhile, utilize the multifarious dot shape that calculation function obtains to have very large variation with the site of tradition plate-making, under suitable observation condition, can be distinguished easily by naked eyes.
The present invention is the preconditioning technique carrying out printing front site, applies the site anti-counterfeiting performance that this technology obtains fabulous, and its security pattern can not be passed scanning, the mode of screening copies again, and experiment shows that this invention can realize 99.95% antiforge function.
The present invention adopts software control to realize, in data fusion, carry out multiple innovation, output characteristics and the uniqueness of different hardware have been brought into play simultaneously, realized from the design of test mark version, screening parameter designing, CTP plate-making, CTP and rushed the integrated of version and antifalse effect testing process, reached the effect that false proof cost is low, method is simple, antifalse effect is good, actual effect is strong and print production application popularization is good.

Claims (4)

1. a two screening anti-counterfeiting printing method, is characterized in that comprising the steps:
The foundation of step 1. two screening antiforge pattern-information database
Before 1-1. determine to print according to printing enterprise's printing sheets characteristic, ink characteristics, printing machine working condition and product performance during CTP plate-making, add network parameters, add network parameters and comprise site type, screen frequency, angle of halftone screen line;
1-2. design two screening antiforge special test mark version
Design has the special-purpose color lump of various CMYK dot percentage combinations, is combined to form two screening antiforge special test mark version;
Described CMYK dot percentage comprises from 5%, 10%, 15% ... 20 grades of sites of 100%;
Before 1-3. utilizes and prints, general screening software RIP adopts the different network parameters that adds to carry out screening to two screening antiforge special test mark version, obtains the 1-bit tiff file of the CMYK under different screening conditions;
The 1-bit tiff file that 1-4. obtains screening imports to general image process software Adobe Photoshop CS3 and merges calculation process, obtains the security pattern with special texture under nonidentity operation condition;
1-5. selects the security pattern of good results, take its RIP condition and Photoshop method for amalgamation processing to set up antiforge pattern-information database as feature;
The security pattern of described good results refer to security pattern from visually with antifalse effect equal satisfactory security patterns;
The printing test of step 2. two screening antiforge pattern
According to the requirement of batch production print product antiforge, from antiforge pattern-information database, select the security pattern matching with it to print test, will test the security pattern of the best security pattern of effect as batch production print product;
Step 3. is obtained the print production data with two screening security pattern information
Print production pdf document except security pattern is carried out to the output of RIP screening with normal mode, obtain 1-bit tiff file, then the security pattern data file it and step 2 being obtained merges, and obtains the complete 1-bit TIFF print production data file for CTP plate-making;
Step 4. is set up the Process Control System of digitized CTP forme output, realize version room temperature, humidity, solution level, liquid compensation rate, rinse temperature, washing time, liquid electrical conductivity and pH value Digital Control, guarantee the accurate output of false proof data on forme and the repeatability of repeatedly exporting.
2. two screening method for anti-counterfeit according to claim 1, it is characterized in that the 1-bit tiff file described in step 1-3, is a plurality of 1-bit tiff files that obtain by different screen angles, screen frequency, dot shape are set in general RIP software before seal.
3. two screening method for anti-counterfeit according to claim 1, the security pattern that it is characterized in that the special texture described in step 1-4 is to be merged and obtained by two or more 1-bit tiff files with specific screen frequency, screen angle and dot shape.
4. two screening method for anti-counterfeit according to claim 1, is characterized in that the print production data for CTP plate-making described in step 3, by obtaining after the false proof data of two screening and normal screening data fusion.
CN201310702886.XA 2013-12-19 2013-12-19 A kind of two screening anti-counterfeiting printing method Active CN103722921B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105034545A (en) * 2015-09-11 2015-11-11 上海紫恩数码科技有限公司 Multi-time screening platemaking method capable of improving printing quality
CN107128094A (en) * 2017-06-28 2017-09-05 浙江华丽达包装有限公司 Many netting twine security printings
CN109270089A (en) * 2018-10-31 2019-01-25 杭州智数创联科技有限公司 A kind of method of quick obtaining halftone paper printing dot gain
CN109572063A (en) * 2018-10-11 2019-04-05 广东讯龙高新技术有限公司 A kind of manufacturing method of anti-fake retrospect label
CN112793322A (en) * 2021-01-15 2021-05-14 浙江茉织华印刷股份有限公司 Preparation method of laser-proof film

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105034545A (en) * 2015-09-11 2015-11-11 上海紫恩数码科技有限公司 Multi-time screening platemaking method capable of improving printing quality
CN107128094A (en) * 2017-06-28 2017-09-05 浙江华丽达包装有限公司 Many netting twine security printings
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
CN109572063A (en) * 2018-10-11 2019-04-05 广东讯龙高新技术有限公司 A kind of manufacturing method of anti-fake retrospect label
CN109270089A (en) * 2018-10-31 2019-01-25 杭州智数创联科技有限公司 A kind of method of quick obtaining halftone paper printing dot gain
CN109270089B (en) * 2018-10-31 2020-11-13 杭州智数创联科技有限公司 Method for rapidly acquiring printing dot enlargement of coated paper
CN112793322A (en) * 2021-01-15 2021-05-14 浙江茉织华印刷股份有限公司 Preparation method of laser-proof film

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Effective date of registration: 20190819

Address after: 310041 No. 218 Stadium Road, Xiacheng District, Hangzhou City, Zhejiang Province

Patentee after: Hangzhou Sheng Yuan YinWu Co., Ltd of daily paper journalism group

Address before: Hangzhou City, Zhejiang province 310018 Xiasha Higher Education Park No. 2 street

Patentee before: Hangzhou Electronic Science and Technology Univ

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