Digital printing has become the darling of the exhibition, and it is imperative to publish on demand.
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The development of new technologies can always bring about adjustments in the industry. Digital printing has swept the printing industry with the dominance of the overlord, and has successfully become a printing method that can be evenly matched with traditional offset printing. In the past September, the top 10 and even the top 20 exhibitors at the Chicago Printing Show, one of the world's four major printing exhibitions, were digital printing and related equipment. The supplier of consumables can hardly see the trace of offset printing at the exhibition site. We do not rule out the decline in the attractiveness of the show itself and the sluggish situation in the US printing industry, but the strong development capabilities of digital printing are not to be underestimated.
The advantage of digital printing and publishing is precisely because of the characteristics of digital printing, "one print, different Zhang", the concept of on-demand printing has been put into practice. Today, we assume that there is a future bookstore that can print books on-demand according to the needs of readers. Readers can choose a whole book that they like, or they can freely choose different chapters from the database according to their own preferences. The new book can be printed upon payment of the copyright fee upon request.
Let us first ask ourselves, what kind of book do we want the staff to press the machine button? That's right, of course, it's like a book, a well-made paper book. This requires digital printing equipment to have a high enough print quality. At the same time, it must be fast and good. Of course, there will definitely be a small number of printed books in the bookstore, maybe hundreds of books, maybe thousands of books. These books may all be broken copies of the book, maybe each has a serial number, or There are other differences. These books also require digital printing. What is needed is a faster industrial digital press.
Quality. From the current situation, digital printing can be said to have the quality of printing comparable to offset printing, especially the quality of black and white digital printing. Various digital printing equipment manufacturers have developed new nozzles, nano inks, etc. to improve printing quality. For example, the HP Indigo digital press supports a wider range of color gamut and Pantone-certified spot color printing, resulting in a significant improvement in print quality; the Fujifilm JetPress720 is capable of rendering a 4-level grayscale at a high speed of 1200 dpi on B2 format paper. But objectively speaking, there is still a long way to go from offset printing, and color digital printing is particularly large. Many printers' salesmen still recommend customers to use offset printing when they receive hundreds of short versions. The main reason is that digital printing quality is not as good as offset printing. Of course, not every company has advanced digital printing equipment, but for the end customers, the general situation in the industry is the real situation.
Speed. Now, it can be said that the digital printing press has got rid of the shadow of the former "large printer", and the speed development can be described as rapid development. For example, the HP Indigo10000 prints 3,450 B2 frames per hour in full color mode, and the speed is up to hour in the expanded capacity mode. 4,600 B2 format; T410 and T360 inkjet rotary presses print at up to 800 feet per minute in black and white mode. The Kodak Prosper 6000XL inkjet printing system has a high printing speed of 133 lines per inch, equivalent to a printing speed of 300 meters per minute, and a monthly printing capacity of up to 160 million sheets of A4 paper. In addition, the Lanta nanotechnology that once spurred drupa exhibition left an endless association.
The current shortcomings of digital printing No matter what kind of printing method, the basic requirements of printed matter on paper are nothing more than weight, thickness, brightness, opacity and smoothness. In these respects, digital printing is no exception.
Digital printing also has some other requirements for paper: for example, electrostatic digital printing press requires paper to have good dimensional stability, low flexibility and low wrinkle in the environment of temperature and humidity change, and appropriate abrasion resistance. , surface conductivity, sufficient stiffness, and less paper or dust during the printing process.
Inkjet digital printing is very different. The liquid properties of the ink used in inkjet technology have requirements for surface absorption and absorption of paper. Therefore, inkjet digital printing machines have high requirements on the surface properties, pore structure, chemical composition and mechanical properties of paper.
It may not be possible to have some kind of paper that can fit all the presses, but if you want to achieve on-demand printing, we need a digital press that can accommodate a wide range of different papers. Nowadays, many ordinary papers can also be applied to digital printing machines, but often some equipment manufacturers require paper for digital printing to ensure speed and quality. This undoubtedly limits the material of the book, and it cannot be flexibly controlled in terms of cost. This issue is also a stumbling block to the development of on-demand publishing.
Undoubtedly, digital post-press has become a hot spot. Any book can be indispensable for post-press binding, and there are high-quality and high-speed printing equipment. If there is no post-press equipment, on-demand publishing is impossible. Fortunately, when digital printing technology is more common, major digital post-press equipment manufacturers have begun to follow up. At Drupa last year, MBO and Martini jointly demonstrated the concept of industrialized on-demand post-press processing. The web after digital printing went through the cutting sheet and entered the variable folding section. Into a book, and into the binding machine bound into a different format of the book. With the addition of the post-press, it is possible to combine into a true on-demand publishing line.
At the Beijing International Printing Technology Exhibition in May, digital printing can be described as a unique, on-demand printing solution integrated by Kodak, MBO and Precision. The printing process was completed by Kodak high-speed digital printing equipment, and the MBO digital post-production line was completed. Folding stacking (with page), precision binding equipment completes the binding process, and the exhibition site is connected to the production of children's books. It is worth mentioning that part of the page number of the children's book is designed to tear off the content of the individual learning or game, which is completed by the matching dragon line equipment (provided by Tecnau) in the production line, and the tearable content is distributed in the children. The book's multiple page numbers, and the size of the film varies, such equipment in the country is extremely rare, applied in the digital post-press process, I am afraid.
Martini Sigma combines digital printing and post-press processing into a single system that can be completed from pre-press data to digital printing to post-press processing and finished products, especially for short-run jobs. Kolbs showcased its Asteruniversal wire-locking machine for digital printing, which can be directly connected to digital printing equipment to achieve pre-folding, matching and locking lines, enabling digital production of hardcover production. Weiyu Leading Technology (Shenzhen) Co., Ltd. exhibited the agent brand Henry multi-function binding system. The glued linkage line can be used for various purposes, which can be directly connected to the web, and after folding, complete the folding and binding. It is also possible to complete the binding process offline, quickly change the setup time, and increase productivity. The precision-equipped plastic binding line has been well known, and it has achieved true on-demand publishing in Jiangsu Phoenix Group in cooperation with Kodak equipment.
In short, the on-demand publishing market has gradually been activated in the development of digital printing equipment. At present, some large companies have begun to experiment in this area, but due to the shortcomings mentioned above, on-demand publishing has not been fully Promotion. Despite this, the enthusiasm of publishing companies for the adoption of on-demand publishing technology is still unabated, waiting for further development of all aspects of technology.
