CN103465657A - Prediction method of printing color features of different printing materials - Google Patents
Prediction method of printing color features of different printing materials Download PDFInfo
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- CN103465657A CN103465657A CN2013103926854A CN201310392685A CN103465657A CN 103465657 A CN103465657 A CN 103465657A CN 2013103926854 A CN2013103926854 A CN 2013103926854A CN 201310392685 A CN201310392685 A CN 201310392685A CN 103465657 A CN103465657 A CN 103465657A
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Abstract
The invention discloses a prediction method of printing color features of different printing materials. The method includes the steps of S1, measuring and acquiring spectral reflectance of visible spectrum of each color block on a standard color testing table printed on first paper; S2, measuring and acquiring spectral reflectance phipaper1i(lambda) of visible spectrum of the first paper; S3, measuring and acquiring spectral reflectance phipaper2i(lambda) of visible spectrum of second paper; S4, under the same printing conditions, calculating spectral reflectance phicolor2i(lambda) of visible spectrum of the color blocks printed on the second paper according to the following formula, wherein i=380, 381...780; S5, calculating a printing feature file generated on the second paper according to phicolor2i(lambda), and using the printing feature file as a simulation target of sampling before printing so as to generate a printing sample.
Description
Technical field
The present invention relates to printing technology, particularly a kind of difference Forecasting Methodology of material print color characteristic of undertaking the printing of.
Background technology
The color of printed matter is attached on printable fabric and shows by printing ink, and paper and printing ink are the principal elements that affects the printed matter color.During actual print is produced, printing ink is that printing house is purchased according to own demand, and the use of printing ink can be controlled in printing house, and the use of paper is subject to the impact of the many factors such as quality requirement of user's demand, printing, often changes more.Yet paper is larger on the impact of color, change the color of printing after paper and deviation can occur accordingly, printing characteristic file so just no longer is applicable to this printing, if the characteristic file of the simulate press of the use of drawing a design before printing is also just no longer applicable, giving draws a design brings difficulty.
For the solution of this problem, the current technical two kinds of ways that have: a kind of method is all to print a Standard Colors test chart for every kind of paper, measures, generates its characteristic file, for printing front digital sample printing; Another kind of way is the printing characteristic file that the printing characteristic file of other surface colors of employing paper similar with printability replaces this paper.
Adopt first method, color-match is comparatively accurate, but many dissimilar paper are all carried out to printing standard color measurement table at paper, expense on the consumptive materials such as printing ink, and to printing machine, the technical staff is temporal to be taken etc. is all no small burden concerning printing house, cost is higher, and paper upgrades at any time, if the user will be with a kind of new paper printing, so will be before formal printing first printing standard color measurement table, then measure and generate its characteristic file, just can carry out this kind of paper is drawn a design, can affect to a great extent delivery date, adopt second method, although solved every kind of paper, all will do the trouble of printing characteristic, this alternative accuracy in the simulation of color is lower, the printing of having relatively high expectations for color, and this kind of mode is not very applicable.
Therefore, how the problems referred to above are solved, be those skilled in the art's research direction place.
Summary of the invention
Main purpose of the present invention is to provide the undertake the printing of Forecasting Methodology of material print color characteristic of a kind of difference, solves the color forecasting problem printed out under the upper different printing papers of printing.Adopt the colouring information of paper and the colouring information after printing on this paper, prediction is under same printing condition, be printed on the colouring information on another paper, while drawing a design before this paper is printed, can adopt prediction and be printed on colouring information on another paper as data source, simulate and draw a design.Can solve the replacing of the upper paper of printing, to the difficult problem how simulate press brings of drawing a design before printing.
In order to solve above-mentioned purpose, the invention provides the undertake the printing of Forecasting Methodology of material print color characteristic of a kind of difference, it comprises the steps:
Step S1: measure the spectral reflectivity φ that obtains the visible spectrum of each color block on the Standard Colors test chart printed on the first paper
look 1i(λ);
Step S2: the spectral reflectivity φ that measures the visible spectrum that obtains the first paper
paper 1i(λ);
Step S3: the spectral reflectivity φ that measures the visible spectrum that obtains the second paper
paper 2i(λ);
Step S4: calculate under identical printing condition, be printed on the spectral reflectivity φ of the visible spectrum of each color block on the second paper
look 2i(λ), computing formula is as follows:
Step S5: according to the spectral reflectivity φ of the visible spectrum that is printed on each color block on the second paper
look 2i(λ), generate the characteristic file printed on the second paper, and using this as the simulated target of drawing a design before printing, the generation print sample of drawing a design.
The undertake the printing of Forecasting Methodology of material print color characteristic of above-mentioned difference, in step S1 to S3, measure and obtain the spectral reflectivity on paper, is to use spectrophotometer measurement to obtain, and wavelength interval is 10nm.
The undertake the printing of Forecasting Methodology of material print color characteristic of above-mentioned difference, the identical printing condition in step S4 refers to: the squeegee pressure of same printing equipment, black key size, fountain solution temperature, pH value, electrical conductivity and ambient temperature and humidity.
Compared with prior art, beneficial effect of the present invention is: the accuracy that has both improved print color characteristic under the different paper simulated while drawing a design, reduced again for every kind of paper and all printed the expense on the consumptive materials such as a paper on Standard Colors test chart printing process, printing ink, and to printing machine, the technical staff is temporal takies.
The accompanying drawing explanation
Fig. 1 is the undertake the printing of Forecasting Methodology flow chart of material print color characteristic of difference of the present invention;
The specific embodiment
Below in conjunction with accompanying drawing, above-mentionedly to the present invention with other technical characterictic and advantage, be described in more detail.
The present invention adopts under a certain printing condition, the Standard Colors test chart printed on paper 1, analog computation is under identical printing condition, be printed on the color numerical value of the Standard Colors test chart on another paper 2, and then be created on according to the color numerical value of this Standard Colors test chart the characteristic file printed on paper 2, in order to simulate drawing a design to printing under this kind of paper.
As described in Figure 1, the undertake the printing of Forecasting Methodology flow chart of material print color characteristic of difference of the present invention, the undertake the printing of Forecasting Methodology of material print color characteristic of difference of the present invention comprises the following steps:
Step S1: the spectral reflectivity φ that measures the visible spectrum (380nm～780nm) of each color block on the Standard Colors test chart that obtains printing on paper 1
look 1i(λ);
Step S2: the spectral reflectivity φ that measures the visible spectrum (380nm～780nm) that obtains paper 1
paper 1i(λ);
Step S3: the spectral reflectivity φ that measures the visible spectrum (380nm～780nm) that obtains paper 2
paper 2i(λ);
In step S1 to S3, measure and obtain the spectral reflectivity on paper, be to use spectrophotometer measurement to obtain, wavelength interval is 10nm.
Step S4: calculate under identical printing condition, be printed on the spectral reflectivity φ of the visible spectrum (380nm～780nm) of each color block on paper 2
look 2i(λ), computing formula is as follows:
Wherein, above-mentioned identical printing condition refers to: same printing equipment is at squeegee pressure, black key size, and fountain solution temperature, pH value, electrical conductivity, and ambient temperature and humidity etc. affects under the technical parameter and the metastable situation of peripheral environment of printing effect.
Step S5: according to the spectral reflectivity φ of the visible spectrum that is printed on each color block on paper 2 (380nm～780nm)
look 2i(λ), generate the characteristic file of printing on paper 2, and using this as the simulated target of drawing a design before printing, the generation print sample of drawing a design.
Have now various software to help the direct formation characteristic file of user according to measurement data, the generation of this part generates by existing related software.
In sum, the present invention adopts under a certain printing condition, the Standard Colors test chart printed on paper 1, according to paper 1, paper 2 and the spectral reflectivity that is printed on the Standard Colors test chart color lump on paper 1, according to formula (1), calculate under identical printing condition, be printed on the spectral reflectivity of the Standard Colors test chart color lump on another paper 2, the characteristic file printed on paper 2 according to the spectral reflectivity numerical generation of this Standard Colors test chart color lump, in order to simulate drawing a design to printing under this kind of paper.
The present invention has effectively solved the defect of current technical two kinds of solutions.Both improved the accuracy of print color characteristic under the different paper simulated while drawing a design, reduced again for every kind of paper and all printed the expense on the consumptive materials such as a paper on Standard Colors test chart printing process, printing ink, and to printing machine, the technical staff is temporal takies.
Above explanation is just illustrative for the purpose of the present invention, and nonrestrictive, and those of ordinary skills understand; in the situation that do not break away from the spirit and scope that following claims limit, can make many modifications, change; or equivalence, but all will fall within the scope of protection of the present invention.
Claims (3)
1. the difference Forecasting Methodology of material print color characteristic of undertaking the printing of, is characterized in that, it comprises the steps:
Step S1: measure the spectral reflectivity φ that obtains the visible spectrum of each color block on the Standard Colors test chart printed on the first paper
look 1i(λ);
Step S2: the spectral reflectivity φ that measures the visible spectrum that obtains the first paper
paper 1i(λ);
Step S3: the spectral reflectivity φ that measures the visible spectrum that obtains the second paper
paper 2i(λ);
Step S4: calculate under identical printing condition, be printed on the spectral reflectivity φ of the visible spectrum of each color block on the second paper
look 2i(λ), computing formula is as follows:
Step S5: according to the spectral reflectivity φ of the visible spectrum that is printed on each color block on the second paper
look 2i(λ), generate the characteristic file printed on the second paper, and using this as the simulated target of drawing a design before printing, the generation print sample of drawing a design.
2. a kind of difference according to claim 1 Forecasting Methodology of material print color characteristic of undertaking the printing of, is characterized in that, in step S1 to S3, measuring the spectral reflectivity obtained on paper is to use spectrophotometer measurement to obtain, and wavelength interval is 10nm.
3. a kind of difference according to claim 1 Forecasting Methodology of material print color characteristic of undertaking the printing of, it is characterized in that, identical printing condition in step S4 refers to: the squeegee pressure of same printing equipment, black key size, fountain solution temperature, pH value, electrical conductivity and ambient temperature and humidity.
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| CN201310392685.4A CN103465657B (en) | 2013-09-02 | 2013-09-02 | Difference is undertaken the printing of the Forecasting Methodology of material print color characteristic |
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| CN201310392685.4A CN103465657B (en) | 2013-09-02 | 2013-09-02 | Difference is undertaken the printing of the Forecasting Methodology of material print color characteristic |
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| CN103465657A true CN103465657A (en) | 2013-12-25 |
| CN103465657B CN103465657B (en) | 2015-11-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106891627A (en) * | 2017-01-22 | 2017-06-27 | 杭州电子科技大学 | A kind of method for determining newspaper printing fountain solution preset value |
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| JP2008260803A (en) * | 2007-04-10 | 2008-10-30 | Toyo Ink Mfg Co Ltd | Lithographic ink composition |
| CN101797833A (en) * | 2009-02-09 | 2010-08-11 | 海德堡印刷机械股份公司 | There is not/has the conversion of the color measured values of measuring under the filter situation |
| CN102029780A (en) * | 2010-09-19 | 2011-04-27 | 中国印刷科学技术研究所 | Method and device for controlling stability of printing color |
| CN102035991A (en) * | 2009-09-29 | 2011-04-27 | 富士胶片株式会社 | Print color predicting method, print color predicting apparatus and profile generating method |
| CN102092206A (en) * | 2010-10-09 | 2011-06-15 | 庞多益 | Method for detecting printing color by using complex frequency spectrum color feature numerical values |
| CN102756549A (en) * | 2012-05-04 | 2012-10-31 | 中国印刷科学技术研究所 | Proofing color consistency control method based on observed light source |
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2013
- 2013-09-02 CN CN201310392685.4A patent/CN103465657B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008260803A (en) * | 2007-04-10 | 2008-10-30 | Toyo Ink Mfg Co Ltd | Lithographic ink composition |
| CN101797833A (en) * | 2009-02-09 | 2010-08-11 | 海德堡印刷机械股份公司 | There is not/has the conversion of the color measured values of measuring under the filter situation |
| CN102035991A (en) * | 2009-09-29 | 2011-04-27 | 富士胶片株式会社 | Print color predicting method, print color predicting apparatus and profile generating method |
| CN102029780A (en) * | 2010-09-19 | 2011-04-27 | 中国印刷科学技术研究所 | Method and device for controlling stability of printing color |
| CN102092206A (en) * | 2010-10-09 | 2011-06-15 | 庞多益 | Method for detecting printing color by using complex frequency spectrum color feature numerical values |
| CN102756549A (en) * | 2012-05-04 | 2012-10-31 | 中国印刷科学技术研究所 | Proofing color consistency control method based on observed light source |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106891627A (en) * | 2017-01-22 | 2017-06-27 | 杭州电子科技大学 | A kind of method for determining newspaper printing fountain solution preset value |
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