CN110430338B - Color management method and device for book and periodical printing and digital information control system - Google Patents
Color management method and device for book and periodical printing and digital information control system Download PDFInfo
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- CN110430338B CN110430338B CN201910719067.3A CN201910719067A CN110430338B CN 110430338 B CN110430338 B CN 110430338B CN 201910719067 A CN201910719067 A CN 201910719067A CN 110430338 B CN110430338 B CN 110430338B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/56—Processing of colour picture signals
- H04N1/60—Colour correction or control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/56—Processing of colour picture signals
- H04N1/60—Colour correction or control
- H04N1/6075—Corrections to the hue
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Color Image Communication Systems (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The invention discloses a digital information control system for book and periodical printing color management, comprising: the system comprises an information digitization module, an information management module, an information transmission module and an information execution module, wherein the information digitization module comprises a paper performance measuring instrument, an ink performance measuring instrument, an environment monitoring instrument, an image information acquisition instrument and a spectrophotometer; the information management module comprises an ERP system and a central processing unit, wherein the ERP system is used for production scheduling and material information recording, and the central processing unit is used for controlling digital information collection, analysis, transmission, execution and execution feedback; the information transmission module comprises a CIP3 and a data transmission line; the information execution module comprises prepress manufacturing and processing equipment, environment adjusting equipment and production equipment. The method, the device and the control system provided by the invention can well realize the color management of book and periodical printing, realize the uniformity of color reproduction of each printing device of an enterprise, have good color reduction control effect and low input cost.
Description
Technical Field
The invention relates to the technical field of printing, in particular to a color management method and device for book and periodical printing and a digital information control system.
Background
Book printing is printing of books, periodicals and the like as main products. Every year, 20 books and periodicals are printed in more than ten thousand kinds in the whole country, the periodicals are 9000 kinds, the total number of the two books and periodicals is 92 hundred million, the total number of printed sheets is 577 hundred million, and the number of the printed sheets is 136 ten thousand tons.
However, the overall printing quality of books and periodicals in China is not ideal, and especially the printing quality of general books and periodicals in middle and primary schools is poor. The main manifestations are as follows: firstly, color printed matters have distorted tone, lost tone, inaccurate overprinting and different color shades at joint positions; the second is a single-color printed matter, which has uneven ink color, inaccurate overprinting on the front and back sides, fuzzy characters, strike-through and the like; and thirdly, the color deviation of the color patterns printed by the same publication in different printing enterprises is large. The key to the quality problem is that most of book and periodical printing enterprises do not pay attention to color management of printed matters, even do not have color management, and printing production is performed by the experience of machine station operators.
Disclosure of Invention
One of the objectives of the present invention is to overcome the deficiencies of the prior art, and to provide a method and an apparatus for color management of book and periodical printing, which are suitable for local applications, and achieve uniformity of color reproduction quality of each internal device by establishing color management characteristic parameters of different production devices in an enterprise, and have good color reproduction control effect and low investment cost. The invention also aims to provide a digital information control system for book and periodical printing color management, thereby realizing the production application of the book and periodical printing color management.
In order to achieve the purpose, the invention adopts the following technical scheme:
a color management method for book and periodical printing comprises the following steps:
1) Selecting a proper image display, calibrating and creating an ICC Profile;
2) Selecting proper image processing and image-text imposition software and completing color conversion;
3) According to ISO 12641-1:2016 international standard calibrating scanner, and generating ICC Profile;
4) Calibrating a printer, measuring and creating a printer ICC Profile;
5) Setting CTP screening parameters, dot amplification compensation curves, density values of four-color printing ink and other parameters;
6) Adjusting a water ink roller, fountain solution, a rubber blanket, printing pressure and the like of the printing machine according to the delivery specification of the printing equipment;
7) Controlling the temperature and the humidity of the workshop to be constant;
8) Printing a test table, measuring and creating ICC Profile;
9) Periodically calibrating and re-plotting the ICC Profile in steps 1) -8) above.
A color management device for book and periodical printing comprises: the system comprises a color management module, a color calibration module, a color conversion module, a data file control module, an adjustment scanner module, an adjustment printer module, a prepress setting module, a CTP publishing compensation curve setting module, an ink performance adjustment module, a printer adjustment module, an inspection verification module and a newly-built export module.
A digital information control system for book and periodical printing color management comprises: the system comprises an information digitalizing module, an information management module, an information transmission module and an information execution module, wherein the information digitalizing module is used for digitalizing physical, environmental and color information and comprises a paper performance measuring instrument, an ink performance measuring instrument, an environment monitoring instrument, an image information acquisition instrument and a color information measuring instrument; the information management module is used for storing, analyzing and managing various digital information and comprises an ERP system and a central processing unit, wherein the ERP system is used for production scheduling and material information recording, and the central processing unit is used for controlling digital information collection, analysis, transmission, execution and execution feedback; the information transmission module comprises a CIP3 and a data transmission line; the information execution module is used for displaying, outputting and adjusting digital images and comprises prepress manufacturing and processing equipment, environment adjusting equipment and production equipment.
Further, the paper property measuring instrument includes: the paper quantitative sampler and the analytical balance are used for measuring the gram weight of paper, the thickness gauge is used for measuring the thickness of the paper, the smoothness gauge is used for measuring the smoothness of the paper, the whiteness gauge is used for measuring the whiteness and opacity of the paper, the paper moisture gauge is used for measuring the moisture content of the paper, and the collected data are input into an ERP system by an operator.
Further, the ink property measuring instrument includes: the ink viscosity meter is used for measuring the viscosity of ink, the ink gloss meter is used for measuring the glossiness of the ink, the scraper fineness meter is used for measuring the fineness of the ink, the analytical balance is used for measuring the coloring power of the ink, and the collected data are recorded into the ERP system by an operator.
Further, the environment monitoring instrument comprises a temperature sensor, a humidity sensor, a conductivity sensor and a Ph value measuring sensor, wherein the temperature sensor is used for monitoring and transmitting the temperature conditions of the production site, the CTP developing solution and the fountain solution, the humidity sensor is used for monitoring and transmitting the humidity conditions of the production site, the conductivity sensor is used for monitoring and transmitting the conductivity of the CTP developing solution and the fountain solution, the Ph value measuring sensor is used for monitoring and transmitting the Ph value of the CTP developing solution and the fountain solution, and the acquired data are automatically transmitted to the central processing unit.
Further, the image information acquisition apparatus includes a camera and a scanner.
Furthermore, the color information measuring instrument is mainly a spectrophotometer and is used for collecting and measuring the color information of the display; the printer outputs test chart information; the ink density, the dot gain, the ink color overprinting, the printing contrast and the color information in the printing process; and thus create an ICC Profile for the corresponding display, printer, and printer.
Further, the prepress fabrication and processing apparatus comprises: a scanner for image acquisition, a display for image display, a PC for graphics processing and a printer for graphics output.
Further, the environment adjusting apparatus includes a central air conditioner, a developing solution and Ph solution replenishing device, and a fountain solution replenishing device.
Further, the production apparatus includes a CTP plate-making machine and a printing press.
The invention has the beneficial effects that:
according to the invention, through digitalizing the information such as instruments, equipment and materials in the color management process and establishing a transmission and control system of digital information related to the device, the data of each process link of book and periodical printing is effectively monitored and adjusted in real time, the effective reduction of the printing colors of the books and periodicals is ensured, the color unification of different printing equipment and different printing batches is ensured, the production loss is reduced, the production efficiency is improved, the operation cost and the production cost are reduced, and the environment is friendly.
Drawings
FIG. 1 is a block diagram of a color management device according to the present invention;
FIG. 2 is a block diagram of a digital information control system of the present invention.
Detailed Description
The drawings are only for illustrative purposes and are not to be construed as limiting the patent, and the technical scheme of the invention is further described in the following with reference to the drawings and the embodiment.
A color management method for book and periodical printing comprises the following steps:
1) Selecting a proper image display, calibrating and creating an ICC Profile; an EIZO Coloredge series of image displays is preferred in this embodiment and is made according to ISO 12646:2015, calibrating an image display according to an international standard, measuring and creating an ICC Profile of an EIZO ColorEdge image display;
2) Selecting proper image processing and image-text imposition software and completing color conversion; in the embodiment, adobe Photoshop and InDesign are preferred, ICC Profile obtained in the step 1) is called in image processing and image-text imposition software, and the image processing and image-text imposition software is set to complete color conversion;
3) According to ISO 12641-1:2016 international standard calibrating scanner, and generating ICC Profile;
4) Calibrating a printer, measuring and creating a printer ICC Profile; in the embodiment, epson P9080 is preferred, EFI6.5 is used for correcting the printer, a test chart is printed, ICC Profile of the printer is measured and created, the ICC Profile obtained by image processing and image-text imposition software selected in the step 2) is called, and relevant settings are completed;
5) Setting CTP screening parameters, dot amplification compensation curves, density values of four-color printing ink and other parameters; in this embodiment, CTP is kodak holo-peptide 800, yinenjie process;
6) Adjusting a water ink roller, fountain solution, a rubber blanket, printing pressure and the like of the printing machine according to the delivery specification of the printing equipment;
7) Controlling the temperature and the humidity of the workshop to be constant; in the embodiment, the temperature is 22-25 ℃, and the humidity is 54-60;
8) Printing a test table, measuring and creating ICC Profile; in this example, the ratio was determined according to ISO 12647-2:2013, controlling links such as data files, plate making, printing paper, printing ink and the like according to the international standard, printing a printing test table of the international standard ISO 12642, measuring color and density according to the international standard ISO 13655 and the international standard ISO 5-3, creating an ICC Profile of the printing machine, calling the obtained ICC Profile by using the image processing and image-text makeup software selected in the step 2), and completing related settings;
9) Periodically calibrating and re-plotting the ICC Profile in steps 1) -8) above.
As shown in fig. 1, a color management device for book and periodical printing comprises: the system comprises a color management module, a color calibration module, a color conversion module, a data file control module, an adjustment scanner module, an adjustment printer module, a prepress setting module, a CTP publishing compensation curve setting module, an ink performance adjustment module, a printer adjustment module, an inspection verification module and a newly-built export module.
In this embodiment, the prepress setting module is configured to set the dot shape to an amplitude modulation cylinder, output accuracy of 2540dpi, and screen line number of 175lpi; the CTP publishing compensation curve setting module is used for controlling CMYK (CMYK) dot expansion to be 19-20%; and the checking and verifying module is used for reprinting the test layout of the printed matter, checking the P2P data of the test printed matter, and verifying that the data reaches ISO 12647-2:2013 international standard requirements; and a newly-built export module for measuring the test table and establishing a new ICC color characteristic file.
As shown in fig. 2, a digital information control system for book and periodical printing color management comprises: the system comprises an information digitization module 1, an information management module 2, an information transmission module 3 and an information execution module 4, wherein the information digitization module 1 is used for digitization of physical, environmental and color information and comprises a paper performance measuring instrument, an ink performance measuring instrument, an environment monitoring instrument, an image information acquisition instrument and a spectrophotometer; the information management module 2 is used for storing, analyzing and managing various digital information and comprises an ERP system and a central processing unit, wherein the ERP system is used for production scheduling and material information recording, and the central processing unit is used for controlling digital information collection, analysis, transmission, execution and execution feedback; the information transmission module 3 comprises a CIP3 and a data transmission line; the information execution module 4 is used for displaying, outputting and adjusting digital images and comprises prepress manufacturing and processing equipment, environment adjusting equipment and production equipment.
In the embodiment, at the stage of the information digitization module 1, each batch of paper put in storage is sampled and inspected by a quality inspector, information such as the grammage, thickness, smoothness, whiteness, opacity, water content and the like of the paper is measured, the acquired data is input into an ERP system in the information management module 2 through the PC 2, and is transmitted and stored in a central processing unit in the information management module 2 through the information transmission module 3 for later calling. Similarly, each batch of warehousing ink is sampled and checked by a quality inspector, information such as ink viscosity, glossiness, fineness and tinting strength is measured, the collected data is input into an ERP system in the information management module 2 through the PC 3, and is transmitted and stored in a central processing unit in the information management module 2 through the information transmission module 3 for later calling.
After collecting customer requirements and product information, service personnel inputs the information into an ERP system through a PC (personal computer) 1, uses corresponding paper and ink according to the customer requirements, selects the paper and the ink, simultaneously displays the basic performance in a project sheet of the ERP, transmits the basic performance to prepress manufacturing and processing equipment of an information execution module 4 through an information transmission module 3, namely an image-text processing PC, and selects corresponding ICC Profile and paper for file processing and digital sample printing according to the paper and ink requirements on the project sheet. During actual production, the operator transmits information such as files processed before printing, related ink quantity and the like to CTP before printing and a printing machine through CIP3 of the information transmission module 3 to carry out printing plate output and ink quantity presetting, and meanwhile, the machine station operator carries out printing machine adjustment, pressure presetting and the like according to the information of the engineering list.
Meanwhile, the scanner, the display, the printer and the like are regularly measured and the ICC Profile is created and applied through an image information acquisition instrument and a color information measurement instrument in the information digitization module 1, so that the color in the book printing process is restored in place, all the ICC Profile files are stored on the PC 4, and backup is made on the central processing unit.
In order to further control the color restoration of the book copying process, the production environment is monitored and recorded at regular time, for example, the temperature and humidity of the plate room and the workshop are monitored and recorded every half hour through a temperature sensor and a humidity sensor of a CTP plate making room and a printing workshop, the recorded data are transmitted to a central processing unit in an information management module 2 through a data transmission line of an information transmission module 3 for recording, when the temperature and the humidity are increased or decreased, a central air conditioner is regulated and controlled to adjust the temperature and the humidity so as to be stabilized in a required interval, and the temperature, the pH value, the concentration of developing solution, the concentration of fountain solution, the conductivity and other data conditions of CTP developing solution and fountain solution are monitored and transmitted through the temperature sensor, the conductivity sensor and a Ph value measuring sensor in a CTP and a water tank, so that the CTP developing solution and the fountain solution are restored to a normal state through adjustment of an adjusting device, the control of the color restoration degree in the plate making and printing links is ensured, and the ICC Profile file of the printing machine is created and applied again according to the related data, and the direct color restoration of the printing machine in the production environment is ensured.
The basic data information of production environment, equipment, instruments and materials is regularly monitored through an information control system, and is regularly analyzed and fed back to prepress processing and production links for corresponding adjustment, so that the consistency of color reduction of different batches and different machines is ensured.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (1)
1. A color management method for book and periodical printing is characterized by comprising the following steps:
s1, selecting a proper image display, calibrating and creating an ICC Profile, and the specific process comprises the following steps:
s11 selects a suitable display as the image display for prepress production and is produced according to ISO 12646:2015 international standard calibrating the image display;
s12, measuring the image display calibrated in S11 by using a color information measuring instrument, and creating an image display ICC Profile according to the measurement data;
s13, storing the ICC Profile of the image display created in the S12 on a central processing unit for calling;
s2, selecting proper image processing and image-text imposition software and completing color conversion, wherein the specific process comprises the following steps:
s21, installing Photoshop image processing software and InDesign image makeup software of Adobe on the image-text processing PC;
s22, calling the ICC Profile of the image display created in S12 on the image-text processing PC, and setting Photoshop image processing software and Indesign image-text makeup software to complete color conversion;
s3 according to ISO 12641-1:2016, calibrating a scanner by international standard, creating a scanner ICC Profile, and storing the scanner ICC Profile on a central processing unit for calling;
s4, correcting the printer, measuring and creating the printer ICC Profile, and the specific process is as follows:
s41 corrects the printer using EFI 6.5;
s42, printing a test chart by using the printer corrected in S41, measuring, creating a printer ICC Profile according to the measurement data, and storing the printer ICC Profile on a central processing unit for calling;
s43, calling the printer ICC Profile in S42 by using Photoshop image processing software and Indesign image-text makeup software which finish color conversion in S22 to finish related setting;
s5, setting CTP screening parameters, a dot gain compensation curve and density value parameters of the four-color printing ink, monitoring and transmitting the conditions of temperature, pH value, concentration and conductivity data of CTP developing solution through a temperature sensor, a conductivity sensor and a pH value measuring sensor in CTP, and adjusting through adjusting equipment to restore the normal state as long as one of the data is higher than or lower than a set value in monitoring, so that the control of color reduction degree in a plate making link is ensured;
s6, adjusting an ink roller, fountain solution, a rubber blanket and printing pressure of the printing machine according to the delivery specification of the printing equipment, monitoring and transmitting the temperature, ph value, concentration and conductivity data of the fountain solution through a temperature sensor, a conductivity sensor and a Ph value measuring sensor in the water tank, and adjusting the fountain solution to be in a normal state through adjusting equipment as long as one data is higher or lower than a set value in monitoring, so that the control on the color reduction degree in the printing link is ensured;
s7, controlling the temperature and the humidity of the workshop to be constant, wherein the specific process is as follows:
s71, adjusting the temperature of the printing workshop to 22-25 ℃ and the humidity to 54-60;
s72, monitoring and recording the temperature and the humidity of the printing workshop every half hour through a temperature sensor and a humidity sensor, and transmitting the recorded data to a central processing unit for recording;
s73, when the temperature and humidity of the printing workshop are increased or decreased, regulating and controlling the central air conditioner to adjust the temperature and humidity so as to be stabilized in a required interval;
s8, printing a test table, measuring and creating ICC Profile, and the specific process is as follows:
s81 according to ISO 12647-2:2013 controlling the links of data file, plate making, printing, paper printing and ink printing by international standard;
s82, printing a printing test form of ISO 12642 international standard by using the printer adjusted in S6 to obtain a printing test form sample sheet;
s83, measuring the color and the density according to ISO 13655 and ISO 5-3 international standards by using the printing test form sample obtained in S82, creating a printer ICC Profile by using the obtained data, and storing the printer ICC Profile in a central processing unit for calling;
s84, calling the ICC Profile of the printing machine obtained in S83 by using the image processing and image-text imposition software selected in S21, and finishing related settings;
and S9, periodically calibrating and redrawing the ICC profiles in the steps S1-S4 and S8, and storing the ICC profiles in a central processing unit for calling.
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| CN113485270B (en) * | 2021-07-22 | 2022-07-12 | 江阴市欧莱特彩印有限公司 | Production process management and control method, system and equipment for printing workshop in color printing industry |
| CN116843770B (en) * | 2023-07-19 | 2024-01-09 | 广东兴艺数字印刷股份有限公司 | Color detection method, device and equipment for printed image and storage medium |
| CN118144426A (en) * | 2024-04-30 | 2024-06-07 | 深圳市建鸿兴数字包装科技有限公司 | Pattern printing and corona treatment signal transmission method and system |
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| CN103152511A (en) * | 2013-01-17 | 2013-06-12 | 中煤地西安地图制印有限公司 | Digital image printing color correction method for printing publishing |
| CN106569753A (en) * | 2016-10-31 | 2017-04-19 | 敬业（东莞）印刷包装厂有限公司 | Wide-gamut color management method, system and apparatus |
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| DE502005003832D1 (en) * | 2005-03-10 | 2008-06-05 | Rite Europ Ag X | Linearization and characterization method of an imaging device |
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| CN102017598A (en) * | 2009-03-17 | 2011-04-13 | 普驰信息技术有限公司 | Profile selection mechanism |
| CN103152511A (en) * | 2013-01-17 | 2013-06-12 | 中煤地西安地图制印有限公司 | Digital image printing color correction method for printing publishing |
| CN106569753A (en) * | 2016-10-31 | 2017-04-19 | 敬业（东莞）印刷包装厂有限公司 | Wide-gamut color management method, system and apparatus |
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