——Color Management and Art in Flexible Edition Data Production Printing in the era of knowledge economy is one of the processing technologies of the mass media in the field of knowledge communication in the knowledge industry, and it is a high-tech industry.
At present, after many world-wide printing titles, it can be broadly divided into four categories: offset printing, gravure printing, embossing, and screen printing. Flexo is one of the newest ones in embossing. According to statistics and predictions of Dr. Bruno and Kodak in the United States, in the world printing industry in 1990, offset printing accounted for 45%, and relief printing accounted for 19%, of which flexoprint accounted for 17%. During the period from 2000 to 2005, flexo printing will develop rapidly; while offset printing has matured, development will tend to be slow, and offset printing and flexo printing will “be evenly divided.†In order to comply with the historical development trend of printing technology across the century, Renshi began operating offset printing plates in Shanghai in 1996. In May 1998, it introduced the DUPONT CYRE13002P flexo platemaking equipment into operation, becoming a noisy prepress production job. The company that combines flexo platemaking and offset printing in one. Flexographic and offset editions have quite a lot of features in pre-production, such as: input color separation of color images, computer graphic layout operations, etc., among them, including the requirements for the quality of originals, the level of electrical extensions or scanners. Decomposition, color balance, gray balance, color compensation for ink plate compensation, etc., as well as processing images and colors using PHOTOSHOP from Apple Computer, processing illustrations and texts with PRDDHAND and ILLUSTRATOR, processing typesetting formats and text output with QUARKXPRESS and PAGEMAKER, and so on. However, there are four main characteristics of the flexographic version of the main characteristics and offset printing plate is different:
1. The overall dot gain value of flexo printing is much larger than that of offset printing. After the output of the flexographic image, at the 50% outlet, the general product outlet needs to be compressed by 15%. When printing corrugated cardboard, the outlet needs to be compressed by 20%.
2. Dots with different shapes and different line counts cause different expansion values. My company generally uses circular dots. The number of screens is usually about 100-133 lines/inch. Calculated on the perimeter of the outlets, using a 175-line offset/inch circular dot as a benchmark, the ratio of the circumference of the 100-line/inch flexo dot to 0.326, the ratio of the 110 line/inch to 0.395, and the ratio of the 120 line/inch is 0.47. 133 lines/inch is 0.578. In other words, the perimeter of the flexo is much longer than the offset scale, and the circumference of the circular dot is shorter than the square dot, so the actual expansion of the flexo dot is far more than 15% larger than offset printing. 20%!
3, flexographic printing plastics printed in India and India, the dot expansion value is not the same, the output in addition to the film is different from the positive and negative, the curve should be different.
4. The characteristics of the flexographic printing plate and flexo printing conditions determine the characteristic curve of the high-light spot and offset printing. Offsets are used in high light to avoid netting, and as a flexible version for continuously adjusting images, our company generally gives 2-3% of protective outlets. This four-characteristic curve is ultimately determined by the final reflection of the respective characteristics of the five basic elements of the printer, printing plate, ink, anilox roller, and print carrier, and the different levels in the operation of the combination. of. This comprehensive operation reflects various data in the print quality control, that is, the main basis for the flexographic prepress production characteristic curve. Therefore, the data relationship between the values ​​of the solid ink density of each color ink obtained from the “trial printing†and the printing expansion values ​​of different screen lines and different percentages of dots on different carriers is the data in the flexographic prepress production. The basis of management. All this can be collectively referred to as the printability problem of the flexographic printing plate. There are two problems between the color and image of various types of manuscripts provided by customers (transparent drafts, color photos, drawings, prints, texts and design drafts, electronic manuscripts, etc.), and creative re-combination of flexo prints and images. : A customer's concept of product reproduction requirements; second is the production of flexographic version of the hardware equipment and raw materials and software technology ownership and data production management mechanism. Therefore, in the image-number-image conversion, there is such a formula: the color image of all kinds of manuscripts + the quality requirements of the customers on the products - the synthesis of light, electricity, color, chemistry, and machine for hardware and software in production. Use - the color image of the new combination of flexo. That is, the last buyer of flexo products is not able to see the quality of the manuscript when the prepress plate was made. They always use the finished product to make a quality evaluation. Therefore, in the flexo printing industry, under the current situation of equivalent hardware, it is often the manuscript that determines the effect of counterfeit products...
The requirements of the flexo printing customers and the final buyers of flexo products in the open international commodity markets in China are simultaneously developed with the modern international market. In reality, the original manuscript market of China's flexo printing (including offset printing) is as follows: Manuscripts that fully meet the printing requirements account for less than 10%, barely qualified manuscripts account for 20%, and unqualified manuscripts account for about 70+%! Here, there are many problems with the use of various professional plate-making cameras, filming with various types of commonly used viewing cameras, basic point-and-shooting machines, overexposure or underexposure, high or low color temperatures, and problems with the film, the processing, and the expansion. The original manuscripts were even made from electrophotographic originals that had been copied many times, were coarsely meshed, and were inaccurately printed. Even irregular editions were required. There are also copies of low-density, coarse-grained ink used as ink drafts.
This kind of reality shows that the original manuscript market of China's printing industry is still at a lower stage. Compared with the quality of developed countries, no one is capable of moving the manuscripts of developed countries in the world to China. This kind of fierce contradiction between the demands of customers and buyers for high-quality prints and the supply of low-quality manuscripts is a problem for many printing companies and will remain for a long time. So, which company is now able to achieve a medium or better product with poor quality manuscripts through a breakthrough in hardware configuration and software technology, and to copy relatively high quality products with medium quality manuscripts, that is, In the past, the reduction-based reproduction has risen to the level of “reinventionâ€. This will not only promote the development of printing technology, but will also gradually achieve the commanding height of the business market! In view of this, on the basis of the configuration of hardware such as the Noonhaier 3900, the company is committed to the development of innovative color management data management software technology, as well as the art of the reprocessing of the networked image and the PHOTOSHOP of the image. Process development.
1, after the separation of printed image manuscript manuscripts on the computer to enlarge, most of the color version is not allowed to overprint, seriously affect the quality of re-copying. The company found a set of techniques that could not be re-aligned during the process of reinvention, thus solving a major technical problem that currently exists and improving product quality.
2. When copying a manuscript as a manuscript, moire fringes must be produced if the layered definition is good, and if the moiré is not to be generated, the image layer must be very imaginary. Examine the industry's big problem in copying printed materials! The company has found a “trilogy†integrated technology that processes both pre-color separation, color separation, and post-color processing in computers. This allows the product to have a clear definition without moiré. Many customers can't tell from the proofs which is the reversal film or color version, and which is the copy of the original document!
3, for various kinds of shooting in the underexposure or excessive, the color temperature is too high or low and flushing, expansion problems in the transparent draft or color photographs, the company also from the color separation process and separation after computer art processing A set of corresponding process data management methods was found.
4. With regard to the color balance, gray balance and tone reduction technology of any manuscript under printability, the company has compiled a set of three softwares that are input in the data disk of the Nori Haier 3900 electric extension so that the company can When, when, and what kind of manuscript is used as a manuscript, you can get a high quality system. This set of three kinds of software has changed the color separation calibration at the electric extension from a variable to a simple constant. All processing of time-sharing or any additional changes in computer production has been done in order to surpass the original and to improve product quality to meet customer requirements. This set of three software is: Renshi (YAM) No. 1 - T, set with D: 2.5 as the reduction benchmark, applicable to all transparent drafts. Renji (YAM) No. 2 - Y, set with D:1.8 as the reduction reference, applies to all printed manuscripts. Renshi (YAM) No. 3 -R, with D:1.8 as the reduction reference, is suitable for all kinds of color rectification and various types of painting manuscripts.
The specific processing can be further adjusted according to the density of the original or high or low. The HD is set corresponding to the original carrier. The color management of the image separation is based on the difference in the gray density, the color shift ratio, and the color shift azimuth in the field density values ​​of the three primary color inks that meet the printing suitability, and when combined into various inter-colors or becomes a band The difference in the gray rate; together with the comprehensive calculation of the black-and-grey compensation converted to different density values ​​for the different black dot quantities of the black version, a set of “closed loop feedback†type number sequence law was developed, combined with the optical aging curve in the color separation device. The compensation calculation is completed. That is to say, how to convert the actual data of the output conditions into the number sequence law of the input conditions; the final one is the beginning, the beginning is the final, the end-to-end matching, and the causal interaction! This set of color management theory of numbers is "software technology" in the minds of engineers, but once the input device is stored in the computer, it becomes an "accessory" in the hardware. Science and technology are primary productivity because it is attached to the physical elements of productivity, and the value of the way they improve their quality and movement. This is the "smart capital" in the operating state of the knowledge economy society!
The company's practice has proved that: the original dye pigment, particle structure of the sample pixels into microelectronics and record the number of lasers, and then converted to a new pixel of the printing ink dot structure of the image - the number - like conversion process The laws of digital state operation were found out, and they were compiled into a set of innovative software, and then re-entered into the computer's data disk in the device. This practice improved the stability and speed of the product's quality, reducibility, and speed. The reduction in the rate of waste products has a decisive role. The artistic processing technology that uses PHOTOSHOP to further enhance the image in color-separated networked computers is entirely a product of making the product beyond manuscripts and satisfying the creative requirements of the customer. It has gone beyond the definition of reproduction. The close relationship between these two data color management and artistic reprocessing is the concrete embodiment of our company's quality management.
At present, after many world-wide printing titles, it can be broadly divided into four categories: offset printing, gravure printing, embossing, and screen printing. Flexo is one of the newest ones in embossing. According to statistics and predictions of Dr. Bruno and Kodak in the United States, in the world printing industry in 1990, offset printing accounted for 45%, and relief printing accounted for 19%, of which flexoprint accounted for 17%. During the period from 2000 to 2005, flexo printing will develop rapidly; while offset printing has matured, development will tend to be slow, and offset printing and flexo printing will “be evenly divided.†In order to comply with the historical development trend of printing technology across the century, Renshi began operating offset printing plates in Shanghai in 1996. In May 1998, it introduced the DUPONT CYRE13002P flexo platemaking equipment into operation, becoming a noisy prepress production job. The company that combines flexo platemaking and offset printing in one. Flexographic and offset editions have quite a lot of features in pre-production, such as: input color separation of color images, computer graphic layout operations, etc., among them, including the requirements for the quality of originals, the level of electrical extensions or scanners. Decomposition, color balance, gray balance, color compensation for ink plate compensation, etc., as well as processing images and colors using PHOTOSHOP from Apple Computer, processing illustrations and texts with PRDDHAND and ILLUSTRATOR, processing typesetting formats and text output with QUARKXPRESS and PAGEMAKER, and so on. However, there are four main characteristics of the flexographic version of the main characteristics and offset printing plate is different:
1. The overall dot gain value of flexo printing is much larger than that of offset printing. After the output of the flexographic image, at the 50% outlet, the general product outlet needs to be compressed by 15%. When printing corrugated cardboard, the outlet needs to be compressed by 20%.
2. Dots with different shapes and different line counts cause different expansion values. My company generally uses circular dots. The number of screens is usually about 100-133 lines/inch. Calculated on the perimeter of the outlets, using a 175-line offset/inch circular dot as a benchmark, the ratio of the circumference of the 100-line/inch flexo dot to 0.326, the ratio of the 110 line/inch to 0.395, and the ratio of the 120 line/inch is 0.47. 133 lines/inch is 0.578. In other words, the perimeter of the flexo is much longer than the offset scale, and the circumference of the circular dot is shorter than the square dot, so the actual expansion of the flexo dot is far more than 15% larger than offset printing. 20%!
3, flexographic printing plastics printed in India and India, the dot expansion value is not the same, the output in addition to the film is different from the positive and negative, the curve should be different.
4. The characteristics of the flexographic printing plate and flexo printing conditions determine the characteristic curve of the high-light spot and offset printing. Offsets are used in high light to avoid netting, and as a flexible version for continuously adjusting images, our company generally gives 2-3% of protective outlets. This four-characteristic curve is ultimately determined by the final reflection of the respective characteristics of the five basic elements of the printer, printing plate, ink, anilox roller, and print carrier, and the different levels in the operation of the combination. of. This comprehensive operation reflects various data in the print quality control, that is, the main basis for the flexographic prepress production characteristic curve. Therefore, the data relationship between the values ​​of the solid ink density of each color ink obtained from the “trial printing†and the printing expansion values ​​of different screen lines and different percentages of dots on different carriers is the data in the flexographic prepress production. The basis of management. All this can be collectively referred to as the printability problem of the flexographic printing plate. There are two problems between the color and image of various types of manuscripts provided by customers (transparent drafts, color photos, drawings, prints, texts and design drafts, electronic manuscripts, etc.), and creative re-combination of flexo prints and images. : A customer's concept of product reproduction requirements; second is the production of flexographic version of the hardware equipment and raw materials and software technology ownership and data production management mechanism. Therefore, in the image-number-image conversion, there is such a formula: the color image of all kinds of manuscripts + the quality requirements of the customers on the products - the synthesis of light, electricity, color, chemistry, and machine for hardware and software in production. Use - the color image of the new combination of flexo. That is, the last buyer of flexo products is not able to see the quality of the manuscript when the prepress plate was made. They always use the finished product to make a quality evaluation. Therefore, in the flexo printing industry, under the current situation of equivalent hardware, it is often the manuscript that determines the effect of counterfeit products...
The requirements of the flexo printing customers and the final buyers of flexo products in the open international commodity markets in China are simultaneously developed with the modern international market. In reality, the original manuscript market of China's flexo printing (including offset printing) is as follows: Manuscripts that fully meet the printing requirements account for less than 10%, barely qualified manuscripts account for 20%, and unqualified manuscripts account for about 70+%! Here, there are many problems with the use of various professional plate-making cameras, filming with various types of commonly used viewing cameras, basic point-and-shooting machines, overexposure or underexposure, high or low color temperatures, and problems with the film, the processing, and the expansion. The original manuscripts were even made from electrophotographic originals that had been copied many times, were coarsely meshed, and were inaccurately printed. Even irregular editions were required. There are also copies of low-density, coarse-grained ink used as ink drafts.
This kind of reality shows that the original manuscript market of China's printing industry is still at a lower stage. Compared with the quality of developed countries, no one is capable of moving the manuscripts of developed countries in the world to China. This kind of fierce contradiction between the demands of customers and buyers for high-quality prints and the supply of low-quality manuscripts is a problem for many printing companies and will remain for a long time. So, which company is now able to achieve a medium or better product with poor quality manuscripts through a breakthrough in hardware configuration and software technology, and to copy relatively high quality products with medium quality manuscripts, that is, In the past, the reduction-based reproduction has risen to the level of “reinventionâ€. This will not only promote the development of printing technology, but will also gradually achieve the commanding height of the business market! In view of this, on the basis of the configuration of hardware such as the Noonhaier 3900, the company is committed to the development of innovative color management data management software technology, as well as the art of the reprocessing of the networked image and the PHOTOSHOP of the image. Process development.
1, after the separation of printed image manuscript manuscripts on the computer to enlarge, most of the color version is not allowed to overprint, seriously affect the quality of re-copying. The company found a set of techniques that could not be re-aligned during the process of reinvention, thus solving a major technical problem that currently exists and improving product quality.
2. When copying a manuscript as a manuscript, moire fringes must be produced if the layered definition is good, and if the moiré is not to be generated, the image layer must be very imaginary. Examine the industry's big problem in copying printed materials! The company has found a “trilogy†integrated technology that processes both pre-color separation, color separation, and post-color processing in computers. This allows the product to have a clear definition without moiré. Many customers can't tell from the proofs which is the reversal film or color version, and which is the copy of the original document!
3, for various kinds of shooting in the underexposure or excessive, the color temperature is too high or low and flushing, expansion problems in the transparent draft or color photographs, the company also from the color separation process and separation after computer art processing A set of corresponding process data management methods was found.
4. With regard to the color balance, gray balance and tone reduction technology of any manuscript under printability, the company has compiled a set of three softwares that are input in the data disk of the Nori Haier 3900 electric extension so that the company can When, when, and what kind of manuscript is used as a manuscript, you can get a high quality system. This set of three kinds of software has changed the color separation calibration at the electric extension from a variable to a simple constant. All processing of time-sharing or any additional changes in computer production has been done in order to surpass the original and to improve product quality to meet customer requirements. This set of three software is: Renshi (YAM) No. 1 - T, set with D: 2.5 as the reduction benchmark, applicable to all transparent drafts. Renji (YAM) No. 2 - Y, set with D:1.8 as the reduction reference, applies to all printed manuscripts. Renshi (YAM) No. 3 -R, with D:1.8 as the reduction reference, is suitable for all kinds of color rectification and various types of painting manuscripts.
The specific processing can be further adjusted according to the density of the original or high or low. The HD is set corresponding to the original carrier. The color management of the image separation is based on the difference in the gray density, the color shift ratio, and the color shift azimuth in the field density values ​​of the three primary color inks that meet the printing suitability, and when combined into various inter-colors or becomes a band The difference in the gray rate; together with the comprehensive calculation of the black-and-grey compensation converted to different density values ​​for the different black dot quantities of the black version, a set of “closed loop feedback†type number sequence law was developed, combined with the optical aging curve in the color separation device. The compensation calculation is completed. That is to say, how to convert the actual data of the output conditions into the number sequence law of the input conditions; the final one is the beginning, the beginning is the final, the end-to-end matching, and the causal interaction! This set of color management theory of numbers is "software technology" in the minds of engineers, but once the input device is stored in the computer, it becomes an "accessory" in the hardware. Science and technology are primary productivity because it is attached to the physical elements of productivity, and the value of the way they improve their quality and movement. This is the "smart capital" in the operating state of the knowledge economy society!
The company's practice has proved that: the original dye pigment, particle structure of the sample pixels into microelectronics and record the number of lasers, and then converted to a new pixel of the printing ink dot structure of the image - the number - like conversion process The laws of digital state operation were found out, and they were compiled into a set of innovative software, and then re-entered into the computer's data disk in the device. This practice improved the stability and speed of the product's quality, reducibility, and speed. The reduction in the rate of waste products has a decisive role. The artistic processing technology that uses PHOTOSHOP to further enhance the image in color-separated networked computers is entirely a product of making the product beyond manuscripts and satisfying the creative requirements of the customer. It has gone beyond the definition of reproduction. The close relationship between these two data color management and artistic reprocessing is the concrete embodiment of our company's quality management.
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