The "green" journey of map printing manufacturers

How to improve the efficiency of printing plants, save resources, reduce energy consumption, and achieve the task quality cycle requirements of customers is a problem that many map printing companies need to solve urgently.

At present, there are more than 200 map printing units in China, including large-scale map printing plants distributed in military surveying and mapping systems, and small printing plants in major military regions and military services. The provinces, autonomous regions, and surveying and mapping bureaus (academies) of the State Surveying and Mapping Bureau have agencies Supporting small and medium-sized map printing plants; small and medium-sized map printing plants or laboratories established by petroleum, coal, metallurgy, geology and other departments and relevant research institutes of the Chinese Academy of Sciences and several colleges and universities.
Most of the professional map printing enterprises in China were established earlier. Although the level of printing equipment has greatly improved with the development of science, technology and economy, the printing technology and technical level are relatively backward. How to improve the efficiency of printing plants, save resources, reduce energy consumption, and achieve the task quality cycle requirements of customers is a problem that many map printing companies need to solve, and one of the major issues is how to use green printing technology to achieve green printing. . Taking a traditional map printing enterprise as an example, the analysis of the implementation of the green printing process by the enterprise is as follows.
1. Use digital proofing instead of traditional proofing
Digital proofing refers to a proofing technology that directly outputs color proofs based on a digital publishing and printing system. It uses a large format digital proofing machine to directly output proofs in a digital way to replace the traditional proofing process such as traditional film making and printing. The digital proofing system consists of two parts: digital proofing output device and digital proofing software. It adopts digital color management and color control technology to achieve high fidelity to match the printed color gamut with the color gamut of digital proofing.
Digital proofing usually uses special digital proofing paper for proofing. Although digital proofing software can simulate paper white, the color of the digital proofing paper and the color of the printing paper after the simulation are somewhat different. The use of printed base paper for digital proofing can avoid inconsistencies in color tracking caused by paper color difference, simplify the process, and is very suitable for digital proofing of map products. At present, the base paper proofing technology is relatively mature and has been applied in production. For example, the modified Epson digital proofing machine can use the specially developed ink to proof the base paper.
2. From traditional phototypesetting output to CTP direct plate making
With the development of CTP technology, the CTP version replaces the processes of printing and printing in the traditional map printing process. The preparatory work for map printing is relatively reduced, and the printing cycle is also shortened. At the same time, the CTP version can use a specific screening method, and fewer errors in human operations. When using a computer for map data processing, professional software can perform trapping processing on small fine lines and small text annotations on the map content, which reduces the inaccurate overprint caused by paper deformation and improves the accuracy of map printing. The CTP system overcomes some of the disadvantages of traditional printing, such as dirty dots, etc. The output dots have good reproducibility, and can compensate for the dots of different types of map products as needed. The application of CTP technology eliminates the need for film output during the map production process, which reduces the use and discharge of developer and fixer, etc. It meets the requirements of green printing to simplify the process and save energy and protect the environment.
3. Use digital workflow
The digital workflow management system can meet the requirements of the digital era, meet the needs of the map printing market, and lead the application of new technological processes.
The general digital workflow, including pre-press, printing and post-press, there is a short-range, pre-press digital pre-press workflow. Its main processing processes are: pre-inspection, OPI function, optimized images, trapping, document editing and description and processing of electronic work orders, color management, spot color processing, soft proofing, digital proofing, folding hand imposition, layout proofing, Description (convert text and vectors into pixels), screening, imaging (output to CTP), archiving, restoration, etc.
4. Fully implement color management
To realize the faithful transmission of colors, comprehensive color management is a necessary way. Taking a certain map printing company as an example, after comprehensive color management, production efficiency has been significantly improved and customer complaints have been significantly reduced. The ICC color management system is built within the operating system, using the color profile (1CC Profile) as the basis for color conversion. As long as any input or output device supports this format, they can be accurately converted between them, which is convenient, Quickly complete the color reproduction, and provide monitoring of the production process in the entire system, so that people with no color experience can also produce better products.
5. Establish a spot color ink mixing center
A large number of spot color inks are needed in map printing. According to actual needs, the map printing enterprise has established a spot color ink color matching center. The color matching center uses the X-Rite professional ink color matching system. The configuration includes: X-Rite professional ink color matching software, X-Rite spectrophotometer, printing suitability meter (IGT color development instrument in the Netherlands), high-precision formula electronic balance, precision Production of electronic balances, three-roll mills. It ensures the consistency of different batches of printing inks, at the same time greatly improves the production efficiency and meets the requirements of green printing processes.
6. Use large format printing
Single maps and multiple wall-mounted maps require a larger format. Traditional folio printing machines cannot meet the printing requirements of single full-open maps. Splicing will affect the appearance and increase costs. The use of large-format printing equipment to print maps simplifies the printing process, which can double the production efficiency, and at the same time can reduce the number of large-scale map stitching, which is favored by map printing companies. The map publishing house even specially designs the single picture according to the largest format that the printing machine can print.
Matching with large-format printing equipment are large-format CTP plate-making system, large-format developing equipment, and large-format digital proofing machine. After the completion of printing, it also needs supporting large-scale post-press processing equipment such as laminating machine, paper cutter, etc.
7. Application of counting machine
The map printing factory count includes white paper count before printing and semi-finished and finished product count after printing. At present, most printing factories use manual counting paper, which is inefficient and prone to fatigue. With the rapid development of computer technology and automation technology in recent years, the number of enterprises adopting paper counting machines has begun to increase. At present, there are two main types of counting machines on the market: mechanical counting machines (contact counting paper) and image counting machines (non-contact counting paper). Because the single sheets of maps, multiple puzzles, map atlases and other papers are mostly thin papers (generally 60 to 200 grams per square meter), the use of mechanical counting machines is more suitable for map production.
Through the implementation of the green printing process, the production efficiency of the map printing enterprise has been significantly improved, the number of rework has been reduced, and the environmental pollution has been significantly reduced, which has effectively improved the competitiveness of the enterprise.

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