Question 2: the advantages and disadvantages of digital proofing Advantages of digital proofing: ① less investment in equipment, occupying a small area of the ground, low environmental requirements. ② save human resources, reduce costs, the experience of the operator to rely on small. ③ Fast speed, stable quality, repeatability, low cost. ④ Wide adaptability, especially suitable for direct plate making, gravure and flexo printing and other processes that cannot be sampled or are not easy to sample. Both can simulate the effect of various printing methods, but also with CTP (Computer to Plate Making) and digital printing presses digital equipment combined to truly automate the workflow.1. Color image reproduction performance Color image reproduction performance includes the image (including lines of text) of the tonal range (also known as the contrast), the field or saturated colors of the density or chromaticity, gray balance, the level of curves of the reproducibility (including the bright tone.), the middle tone, the dark tone level reproduction, Midtones, dark tone level reproduction and dot gain rate reproduction and fine texture. Regardless of which color management software, through the measurement of the standard file color block to be simulated printing and the standard file color block with the printer, respectively, to get the ICC format data, calculated by the color management system software, the establishment of the proofing process required for the characteristics of the calibration file Profile. To the digital proofing system, you can output and subsequent printing to match the proof sample. Regardless of what kind of paper for printing (such as coated paper, offset paper or newsprint, and even plastic, cardboard and other substrates), what series of inks, digital proofing system can be simulated. If a variety of different digital proofing system in the proofing quality there is a slight difference, which is mainly reflected in their supporting color management software performance differences. Traditional proofing technology, due to the proofing machine in the speed, pressure, imprinting methods are different from the actual printing, so the traditional proofing is difficult to simulate the actual printing, printing is also difficult to catch up with the effects of traditional proofing, and digital proofing of the samples in actual use, press operators generally feel easier to simulate, this is due to the digital proofing and printing in the entire color space in the color difference is smaller than the traditional sampling and printing between the color difference. 2. Image resolution due to digital proofing systems usually use inkjet or laser printing technology, the general output is the FM dot or continuous tonal structure, so as long as there is 600dpi or more output resolution, the proofing of the samples can be achieved by 150lpi of the effect of the modulation of the dot. Now most color printers can achieve such image resolution. A new generation of digital proofing system RIP can be output with the actual printing effect of the same AM dots, so the printer is required to have a higher resolution. At present, EPSON inkjet printers output resolution up to 2880dpi, HP inkjet printers up to 2400dpi, the output and the actual resolution of the same effect of AM dots image, there is no problem. Of course, from the point of view of the actual dot structure, the sample on the edge of the dot is not as clear as the actual printing of the dot, only with the mesh do not see this subtle difference, people need the visual resolution of the entire image with the printing of the same can be. Traditional proofing may be due to overprinting is not allowed to cause a decline in image clarity, while digital proofing does not exist overprinting is not allowed to the problem. 3. the stability of the sample output, consistency, without a doubt, due to the digital proofing system is a digital page file sent directly to the sampling system, in the output of the sample before, all by the digital signal control and transmission, so no matter when the output, even if the time interval of weeks, months or even years, the same electronic file output effect is exactly the same, the same electronic file output effect is exactly the same, the same electronic file output effect is exactly the same. The same electronic document output is completely consistent. Of course, the premise of this stability is the color printer hardware performance, such as inkjet droplet size, ink and printing I can maintain a consistent. For traditional offset proofing technology, in addition to paper, ink, PS version should remain stable (in fact, it is very difficult) and the state of mechanical proofing equipment (such as the plate table "pressure", paper table "pressure", the height of the blanket and liner, water and ink roller pressure, etc.) should remain normal. Pressure, etc.) should be maintained normally, the effect of traditional proofing is also subject to environmental conditions (temperature, humidity), ink. The amount of its uniformity, ink and water balance and many other factors, the proofing process connected to the sample of the field density can not be maintained consistently, not to mention that it also depends on the level of the operator and other factors. Relative to traditional proofing, digital proofing is virtually unaffected by the environment, equipment, technology, etc., much less by the operator's influence, its stability, consistency is very ideal, so the digital proofing system as a network of sampling equipment to use, that is, everyone can use the digital proofing system to output samples. 4. Output speed for a long time, the output speed of the digital proofing system has always been the popularity of this technology can be popularized. Bottleneck. Until last year, in the market appeared large format, ...... >>
Question 3: What is the difference between digital proofing and printing proofing? How is the charge? The problem is that the problem is not a problem! Digital proofing is also divided into 2 kinds, one is the traditional proofing, that is, out of the film sheet proofing, so that out of the color and solvency and printing will not have too much difference, but the price is more expensive. The second is the digital printing in recent years, mainly for the A3 + format within the short version, variable prints. Fast speed, immediately available, the effect is good, the price is also cheap, generally three or four dollars per side (not by the sheet, if it is positive back then it is double the price. It is charged by the face upset sheet). One of the Japanese Fuji Xerox machine printed things on the surface of a layer of silicone oil, if it is a four-color black out of the text there is a sense of bump. Color difference Each machine is not the same. Because the needs are not the same. If the design is finished to see the effect, the latter is recommended, if it has been finalized without change, it is recommended that the film sheet proofing. So if you do not change, the film can be given directly to the printer. Oh I hope to help you.
Problem 4: Introduction to digital proofing With the development of computerized direct-to-plate (CTP) technology in recent years, the industry generally believe that the potential to replace the existing film production process, and the revolutionary digital workflow will replace the existing production methods. Digital proofing as an important part of the printing workflow, to become a hot enterprise. At the same time, due to the digital proofing system has a powerful color management features, at the same time can be used as advertising *** production and digital photo (wedding, art photos) output, is a multi-functional work system.1. Applied to the printing industry, replacing the traditional proofing and can be used as a design and production finalization of the digital proofing is today's industry on behalf of the advanced productivity of one of the high-tech products based on the technology of the digital proofing program, the digital proofing program. Can definitely create better profits and higher efficiency for your company or unit.2. Apply to advertising *** and digital printing digital image industry, can directly output indoor *** and light box advertising and digital photos.3. As the system has a strong color management function, than the general advertising *** / digital wedding system on the market, the output color is more accurate, the level is more rich.
Question 5: What are the advantages of digital proofing compared with traditional proofing Traditional proofing is the practice of finalizing the first out of the film, and then the sun PS version of the traditional proofing machine with a round press flat proofing, proofing cost is high, the time is long, and because of the manual operation, the color shades are by the proofing mechanic to decide on their own, and repeat the color of the proofing again will be different. Now there are still many not on the CTP printing press, printing the design of pre-press documents, typesetting are in the pre-press design company or output center to complete. Digital proofing is through the color management software will layout the electronic document interpretation and the actual printing effect of the same color separation of documents, with high precision, large format inkjet printers to print out, instead of the output of film after the traditional proofing process, especially with computer direct-to-plate CTP process, because there is no need to proofing out of film, but signing samples to print or to have a sample, and the sample of the color to be able to with the actual printing effect. The actual printing effect is consistent, so there must be digital proofing first hit the sample and then CTP output on the machine version, but more inconvenient is the need to use special coatings imitation coated paper printing, booklet printing to the manufacturers of the color is very correct, with the color of no problem. But relative to the packaging printing-based manufacturers will be very difficult to do, because they often not only have to hit the sample, but also to be made into a finished product to the customer, and the special imitation coated paper adhesion is poor, in the post-processing film, hot stamping, laminating E-watt, die-cutting die-convex box and so on, after processing is not a very good use of the process. Suggestions: Xiamen Good Printing Digital Technology Co., Ltd. research and development and production of "with the e print" series of products, you can already use the actual printing of paper proofing, with the actual material paper and other substrates directly proofing to do the finished product, can be similar to the actual printing effect, which is the design of the creative company to produce samples of the physical, packaging and printing enterprises to contact the business, to the CTP supporting, shorten the proofing confirmation process is also a good choice
Problem 6: digital proofing of the digital proofing of the key points of the printing company and their customers from the analog to digital workflow transfer process, the digital proofing of this link has not yet reached the freedom of the situation, because this change is not easy, or even difficult, and therefore need time. Press operators need time to learn how to make the printed result match the proofed result in color, rather than simply using dot analogies as before. It is important to make the printed color match the proofing results, rather than using a magnifying glass to check the proximity of the printed dots to the proofing dots, this change in mindset is a prerequisite for the acceptance of the digital proofing process. In order to check whether the color of the print matches the color of the proof, the first need to observe under a standard light source. For prints with low quality requirements, the method of visual inspection can be used; however, for prints with high quality requirements, instrumental inspection is required. General densitometer can only measure the optical density, when the requirements are very high, consider using a spectrophotometric densitometer or similar equipment to measure the proofs and printing.
Question 7: The difference between traditional proofing and digital proofing and the advantages? Traditional proofing is generally required to send the film, plate, on the machine proofing and so on these links, the disadvantage is: time-consuming, costly, color controllability is not high, the advantage is: can be a variety of media, a variety of thickness of the proofing; digital proofing, connected to the printer by the computer, the direct output, the advantage of: time-saving, low-cost, color-controllable (of course, the proofing machine is also divided into laser and inkjet), the disadvantage is that the size and thickness of paper limitations
Queen's question: The difference and advantages of digital proofing? Thickness limitations
Question 8: digital proofing What equipment is needed That depends on your actual needs to see, first of all, to consider the cost of the problem, if you are a simple printing press may have to choose a relatively good proofing machine, such as the ability to hit the thicker cardboard, coated paper, matte powder, etc., in which case you have to choose a professional machine, generally with EPSON machines or modified; If you still have a business front or door, then, playing thick paper and less, you can choose a laser machine, but the laser machine can only print 250g under the paper, and the color accuracy is not good.