How to implement the color management of printing production in paper packaging enterprises?

A complete color management system should include input, display, and output device characteristic files, characteristic file creation software, and standard inspection objects, color management models, characteristic file connection spaces, and application software interfaces required when creating characteristic files. At present, there are a variety of feature file creation software on the market, such as Kodak, ColorFlow, ProfileEditor, MonacoProfiler software, etc. Standard inspection objects include those required when acquiring scanner, digital camera, display characteristic files, and output device characteristic files.

Color management should have standard light source, high-quality color characteristic file generation software, advanced color management system, standard measuring instruments and test tools, standard color color target, standard printing management, standard remote digital proofing color management, Standard scan-recovery color management, standard digital camera color management, standard monitor calibration and screen soft proofing.

(2) System implementation

Carton and carton companies should focus on the following aspects during the implementation of color management:

1. Standardization management of printing process

Careful preparation of the standardization, standardization, and data-based production management of the various processes throughout the printing process is the prerequisite and basis for applying ICC color management. Enterprises should strictly formulate quality standards for fine products, intact standards for raw and auxiliary materials such as paper and ink, standards for measuring tools and environmental light sources, and develop standardized management documents, etc., and strictly follow the standards. The soft proofing of the display, the ICC file of the printer, the parameters of the printing machine, etc. should be standardized, and quantified within the standards and specifications. In all places where data can be expressed, through testing methods, the data that can guarantee the quality can be summarized. The three complement each other and depend on each other to ensure stable high-quality and efficient production.

2. Display calibration and soft proofing management

The monitor is the most important pre-proofing tool for prepress color management. Enterprises should choose high-quality professional monitors to enable accurate picture presentation. Adopt professional screen corrector and color characteristic file generation software to calibrate the monitor and generate profile to ensure that the monitor reaches the maximum color gamut range and the best color rendering, and conduct soft proofing of the screen in Photoshop to make the screen color and proof The color is basically the same as the printing color, so that the "what you see is what you get" pre-display.

3. Profile file management of remote digital proofing

Profile file management of remote digital proofing can ensure consistent color of digital proofs printed in different places. Transfer the profile file reflecting the suitability of the printing press and printer into the printer software for correction, and generate a new profile file after the first color space conversion. Make excellent target proofs, through measurement and calculation and further modification to generate the final Profile file, to ensure that the accuracy of color restoration reaches more than 95%.

Adhere to the use of color management software to check and control the remote digital proofing system of the two places. Because the closed-loop correction technology forms a closed-loop system of color correction, it is conducive to the consistency of the proofing colors of the two places.

Standard print standard test strips every day for inspection and control, and standardize correction once a week. Through the standardized correction of the printer and the consistency of the profile file finally established, the color and gradation performance characteristics of the printers of the two places can be completely consistent. When using the same color profile, you will get exactly the same proofs.

4. Management of prepress image processing technology

The scanning and color separation of originals should be guided by the four basic standards of copy quality (gray balance, tone copy, color correction, sharpness enhancement). Through experiments, standardize the four standard parameters. The gray balance achieves accurate reduction, and makes full use of the best solid density value of the dot tone to achieve bright and saturated colors. Adjust to the best according to the magnification and the content of the picture to make the picture clear and delicate in texture. After the scan file is completed, it is necessary to adjust the defects of the non-adapted manuscript to achieve an effect superior to the manuscript; according to the characteristics of product design, make appropriate artistic treatment to fully express the artistic style of the work; Non-linear transmission is used for compensation adjustment, which makes the printed product level richer.

(3) Configuration of color management system

At present, there are many color management systems on the market. Different color management systems have different color management capabilities for devices. Mainstream ones such as Adobe's Photoshop color management system, Apple's ColorSync color management system, Kodak's color management system, etc. Each has its own characteristics and has its own advantages. Almost every system cannot provide complete color management for the entire process of copying. Therefore, companies must first determine which devices need to obtain consistent colors in order to choose.

When purchasing a system, an enterprise should compare and test the reliability, equipment supportability, scalability, compatibility, and ease of use of the system according to its own situation. The same color manuscript can be used during the test, and it can be observed which system can obtain the most consistent effect with the manuscript under the specific operating environment.

Conclusion: The realization of color management in paper packaging production should be combined with the conditions of the company, and carefully and repeatedly tested, adjusted and experimented on scanners and other equipment to achieve effective color information transmission and management between all links in the printing process. Establish a color management system with company characteristics, so that color management can be effectively implemented and become a prerequisite for printing quality assurance, further improve the utilization rate of equipment, reduce costs, improve customer satisfaction, and lay a solid foundation for further development of the market.