Color control and method of proofing process

The rapid development of inkjet proofing technology has made the fight between inkjet proofing and traditional contract proofing more and more obvious. Although there are still many problems that have not been solved, the quality of inkjet proofing and the printer's RIP capabilities are improving.
Although most people think that the inkjet proofing process is quite perfect in many aspects, but for high-end jobs, wet proofing, digital half-tone proofing and other similar proofing are far more effective than inkjet proofing. It is not controversial.
Recently, however, inkjet proofing has made an essential leap in quality, especially the RIP of proofers. With proper software and proofing techniques, it is possible to predict moiré, check for overprints and overprints on low-cost systems and even observe halftone dots.
Developers have begun to add half-tone reproduction capabilities to their inkjet printers. They believe that this high-cost process will be increasingly accepted by the general public and will have a vast market space. There may be many improvements in the quality of halftone proofing based on inkjet technology, but true halftone proofing will no longer be unique to high end devices.
Motivational mood proofing is often one of the exciting topics. Purely for the purpose of checking the performance of output equipment for temporary content, it is quite different from those used for copying such content on printing presses. Even in the printing process, this problem is very common.
The focus of the authoritative department's report and statistics work is no longer on a series of spot color selection guides, but rather on the stricter requirements of the proofing process. Ultimately, it will inevitably have to go back to the amount of contractual costs that it brings, especially the cost of failure.
High-quality color jobs have inspired the development of the high-end digital proofing industry, although many industry experts believe that this market will die out. But this worry has not become a reality. It is indisputable that the inkjet proofing process has caused a storm, mainly because the requirements of the printing unit for inkjet proofing are not very picky, nor are they too complicated, and the width is also very flexible.
Developers of ink-jet process and control software are currently studying the ability to enhance half-tone reproduction to meet growing market demands.
For most buyers of proofers, they consider the ability to match the color of the proofer accurately, followed by the problem of rose spots. But what's interesting is whether or not the proofing machine can be used for spot imaging. The fundamental difference between them is whether the final output device has RIP functionality and color management tools. The combination of data management and the process of controlling the size and structure of the ink droplets to control the ink droplets allows the inkjet proofer to replicate the dots.
Most of the equipment and tools provided by Agfa, Seecolor, Compose, Best, Colorblind and Colorbus are used in the newspaper industry. Although newspaper printing uses commercial printers to print on lower-grade paper, accurate proofing is still very important, and this process is also very much associated with a certain part of the commercial market.
Regardless of whether the demanding printing units cater to the development of today's industry, achievements are still visible. Perhaps the level of genuine concern for small and medium-sized printing companies and prepress-making companies will depend on whether customers are willing to pay for genuine outlets.
Although many printing companies must eventually match the proofing and printing, in many printing methods, the actual copying effect has far exceeded the customer's requirements. Although dot proofing can already be replicated on the printing press, many users still prefer continuous proofing.
It is true that many customers think that photo proofing is a good choice. These customers do not care about how much it costs for real-site simulation of the final print, because they trust printers, and the risks are far less than they were a few years ago.
Despite the trust and rich prepress knowledge of customers, we still have a lot to do, but this also reflects changes in the printing trade. Short-version trends mean that the amount of contracts is small, but the corresponding costs have increased. The era of at least thousands of prints and strict trust in contract proofing and the resulting high cost of consumption are gone forever.
Diversity of participants The diversity of market participants Although traditional proofing has not yet exited the market, its role has changed. For many processes, proofing is no longer as harsh as it used to be. Therefore, there are many companies offering different digital proofing solutions. This is the diversity of market participants. For example, Agfa, Kodak-Pauli Optical, and many small companies such as GMG and Compose.
Digital workflows and web-based production have played a role in the establishment of markets for different proofing processes. This digital content supply chain involves many users, most of whom will carry out a traditional hard proof after the production line. So a job from start to finish, from screen soft proofing to full digital halftone proofing, will be done in many different ways.
Among these R&D teams, KPG is the only manufacturer to offer different types of proofers because last year it acquired Imation Digital Proofing and Encad Printing Company. KPG can now provide digital equipment and analog equipment for temporary proofing and contract proofing. The company recognizes that the more options available for output performance, the more users will consume KPG materials.
Craig Robertson, manager of color processing at KPG’s Product Marketing Department, said: “We supply such a series of proofers because we are also suppliers of consumables. As customers and agents, printing companies or any other industry have more and more Close contact, proofing involves all users throughout the supply chain, so we will provide all the products our customers need.
The Matchprint RIP system that can drive Canon, HP, and Epson inkjet printers costs at least 1,000 pounds. However, the high-end Approval XP4 digital halftone color drive costs nearly 100,000 pounds. The Approval Series uses front-end technology to enable it to perform in the market with excellent performance. Users can also set the density and dot gain of each ink.
With Approval halftone proofing, almost all printing conditions can be reproduced in the same way as image recording devices or CTP devices. At 16 pages per hour, KPG claims that the device is the fastest and most productive digital halftone color proofing system in the industry today.
One of KPG's customers is London-based printing company Zebra, which recently installed a KPG digital proofing system. At the same time, Zebra also owns the Quantum Spectrum platesetters from Creo with the same RIP system as Digital Matchprint, which is also used for proofing.
Paul Samuels, IT Systems Manager, said: “From our discussion with prepress and printing company customers, we have found that publishers still have proofing agreements in the digital workflow and are still using film proofing.”
“Design and direct mail customers also found that proofing equipment is not very satisfactory in many respects when it comes to folio proofing. Wet proofing is too costly in terms of correction. Digital Matchprint can perform traditional dot-split proofing and use The substrate and imaging process make it 100% stable. This allows our customers to see reliable proofing."
He added: "With this system, we can produce 16 proof sheets with an A4 size per minute without any problems in quality. There are 4 color separations and they are overprinted together. The more customers are interested in this kind of system, he added. The more obvious it is, that even if we need to introduce another system within one year, I would not be surprised that this is very possible. This kind of digital proofing completely eliminates the doubts caused by the digital work flow of customers."
CREO is also a household name in the proofing area. At IPEX, CREO launched the latest product of the Iris inkjet printing process - the latest generation of Veris proofers using Iris technology, which can generate high-fidelity proofing with dots with true and uniform resolution of 1,500x1,500. Whether using the output file generated by the Prinergy process or the Brisque process, the color accuracy is guaranteed to match the final print. CREO color management technology is suitable for all software in its digital workflow. However, Creo did not increase its outlet function, although it was positioned as a contract proofing device.
Confidence continues to grow Another interesting thing at the IPEX show is the user's focus on soft proofing. In this regard, more and more companies are increasingly agreeing with the pages displayed on the screen.
RealTimeImage has developed a series of solutions for remote proofing and hard proofing, and is based on web proofing. The core of this solution is Pixel-On-Demand technology. Based on Internet streaming technology, high-resolution picture data can be transmitted via any digital network on the Internet. Streaming technology uses the broadband of the network to transfer data, rather than packing a file into discreet packets, so it is very fast.
However, this market became a bit busy. Also at IPEX, Dalim, the enthusiast of the process, launched a browser-based remote proofing and management system for the Twist process. Twist Dialogue is a streaming tool that can browse high-resolution data on the web, similar to RealTimeImage technology. It allows the user to zoom in on key areas, read density values, and check the output data of the page. The purpose is to simplify cooperation on the Internet, remote browsing, and soft-screen proofing. With Twist Weblink remote access, users can integrate with the Twist workflow process.
The choice of digital proofing is no longer just as random as the winning one, both in terms of investment in the craft and the user's risk. Because the factors of the economy of many small and medium-sized printing companies are taken into consideration, the chances of messing up are much smaller.
As with everything else in prepress, the digital proofing process is no longer just talking about most print applications. It has become more and more satisfying for some customers.
Of course, digital proofing may have certain problems for a certain place, person, and in certain circumstances. There will always be such a customer. They will not be satisfied with digital proofing until they see the precise network structure, and will consider whether this risk is worth it.
Because of this, Kodak Poly Lighting will continue to sell the Approval proofing system, and DuPont will continue to sell Cromarin digital proofing systems, and their users will continue to support digital proofing technology.

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