Digitalization changes the printing environment (3)

Black and white systems are also multifunctional

In black-and-white monochrome, the ideal chemical industry company's Lithograph SR7400 is a fully-automatic digital press that is high-speed and efficient in printing operations, reduces production costs, and is a professional level. The machine pursues the quality of the picture and the quality of the finished product. The resolution is increased from the original 400 dpi to 600 dpi. And with the help of the gear drive, the overprint accuracy is improved, the original is fixed more accurately, and the design is novel and desirable. Each high-speed printing with 120 sheets corresponds to the requirements from A3 to postcard specifications.

Based on Konika's digital copy printer 7060, the network printer system Crever Press, which is connected to a personal computer via RIP, was jointly developed by the Tetra Printing Machinery and the Konika Business Machine. The new version is Crever Press, Pro and Crever Press, Ultra, improved the original performance, and added new features. Due to the high speed of output and adopting the fast page processing method of scanning and printing from the first page, the productivity has been improved, and the functions of thick paper and postcards have been enhanced, and the practicality has been greatly improved.

Fuji Xerox's Docutek 6180 is a continuously processable on-demand publishing system from printing instructions to stapling. Showa Intelligence Machinery's Versamark is a high-speed printing system. The necessary functions are added to the customer's needs, and component methods are used. According to the different printing speeds, there are two kinds of 90-100 models (printing speed per minute 100m) and 90-150 models (printing speed per minute 150m), can handle monochrome printing, high-profile color printing. Dainippon Screen's NP-V200 can process digital data such as Postscript files to RIP at ultra-high speed, and output it to A3 wide-format printing paper at a maximum resolution of 600 dpi. Each page is printed with 400 pages (A4 horizontal duplex) and 200 pages (A3 vertical and two sides).

Web offset press is also for small batches

Originally adapted to high-speed, high-volume web offset presses, with the changes in demand, has recently sought to adapt to many varieties, small batches of online processing. Last year, at the IPEX exhibition in the UK, the axisless offset printing transfer machine attracted attention. The only company that displayed on the IGAS in Japan in 1999 was the small batch and multi-variety A2 offset printing press Alber Press and Tokyo Machinery Manufacturing Co., Ltd. The production of B on the offset printing press Colortop3000CM. Alber Press is a compact sheet-fed double-sided machine. Using UV inks, it can be used for all purposes such as product samples, brochures, flyers, mail order advertisements, postcards, and business documents. Available for single sheets, webs, pleated folds, and full-page folds are arbitrarily selected as A2A3A4×2 specifications, so no post-processing, such as cutting, is required.

Corortop 3000CM adopts a shaft-less way between the units, which can be adapted to the design of the workshop, thereby greatly reducing the production site. Plate cylinders and blanket cylinders use narrow-gap rollers to achieve a print speed of up to 850 revolutions per minute.

Komori-Maki's System Series is designed for low-volume B-Series 4 start-ups in pursuit of wide availability, and is highly efficient in productivity, A horizontal and horizontal machines, and can handle all applications. Shorten the change of the version, replace the time of folding, the operation is also much easier. System35S, System35II adopts a tipless cut to clean and discharge B4×2 pages, and is tied with a delivery table strapping machine.

As for the equipment around the offset printing rotary press, Quadtec's color control system. This is a scanning system for on-line video substrates dedicated to web offset printing machines. In the printing process, in order to improve the accuracy of color reproduction, microcolor scales are automatically detected using color measurement information, and the color density information is automatically sent to the operator of the printing press after the adjustment. Then the necessary corrections are automatically sent to the ink control console. According to this, in the operation of the printing press, it is possible to meet the requirements of the customer's processing order, and it is very desirable that each operator and each workshop have the same degree of print processing.

Look at the next century digital offset printing machine

The development trend of digital offset printing in the next century is like DotCP of Goss, Dicoweb of Man-Roland, Toyo Ink and Elcography of Elcosy of Canada. All of them are products that meet the requirements of many varieties, small batches, and low cost.

AdoptCP is a computer graphics technology that relies on core technology. It can repeatedly write and print on the plate cylinder. This is its basic structure. For image formation, it was scanned with copper on a plate cylinder coated with a nickel crystal according to a digital signal. This technology is a unique technology patented by Goss. Copper can be recycled after the image is erased. The hardness of the nickel crystal is high. It does not require the post-processing (baking plate processing) required by the PS plate, and the resistance force is up to Millions of prints. Another feature is the variable size of the specification. The plate cylinder and the blanket cylinder are shell skin structures, and the thickness of the shell skin made of their own special fiber glass can be varied to change the specifications.

Dicoweb uses a laser to record images directly on the sleeve plate cylinder. After the printing is completed, the image can be eliminated and a new image can be formed again. There is no need to replace the version when the work content is changed. Sleeve plate cylinders can also perform continuous image printing with 360° imaging. The width of the web is 140mm, which is a CTP (Computer to Press) with an imaging specification width of 100mm. A sleeve type printing plate coated with a hydrophilic polymer is sleeved on the plate cylinder. The dot size of the image is 11 microns and can be printed at 2400 dpi with high resolution. The imaging speed is 2 minutes 40 seconds for A4 and 5 points for A3. After the imaging is completed, the fixing solution is applied on the image portion, and the resistance force can reach 20,000 impressions.

Elcography is electrographic imaging using aqueous inks based on electrochemical reactions. When the initial page is imprinted onto the web from the chart cylinder, the next new page is traced to the other place on the image cylinder, so dynamic printing can be completed smoothly. The phenomenon of so-called water-based electro-impulse imaging is caused by a short DC impulse from the negative electrode. That is, the polymer before the activated negative electrode is forcibly adsorbed by the positive electrode, and is selectively formed on the surface of the positive electrode for three-dimensional particles having a greater size and thickness depending on the use of the needle electrode array. As the ink on the surface of the positive electrode is strongly agglomerated by trivalent iron ions, the image formed on the image drum can be developed by a squeegee such as a doctor blade used for gravure printing. The developed image is immediately transferred to paper, dried quickly at room temperature, printed on a long live print, and the developability is also stabilized.

The wave of digitalization also affects post-press engineering

The wave of digitalization has affected the post-printing project today. It can be said that prepress, printing, and post-press projects centered on CIP3 have become networked and have entered the era of managing the entire printing project as a work flow. Heidelberger's CIP3-PPF data output from the digital signing software Signa station is sent to the computer cutting program of the production program management system through the data control system, and the cutting system is completed. The folding machine is also automatically adjusted by means of a computer, leading to shortened time and effort.

The Prima Selective saddle stitcher by MullerMartini is the original machine added optional binding. After printing by means of the ink-jet address until stacking, all are handled on-line. Based on this, based on the customer data, we can do binding with different interests, regions, ages, hopes, etc. It can be said that we have entered the new binding times combined with communication media. All Oristar of Masanori Machine Works is a computer folding machine for the digital era. In addition, the sewing machines and gluing machines that deal with binding according to ecology are all in order to meet various needs, so as to increase the versatility and shorten the preparation time.

Polyzone proposes the direction of a new postpress project based on a book-on-demand system and a processing system headed by BQ340X. In addition, the on-demand automatic binding system SP2000 DSC of Showa Intelligence Equipment is best suited for the binding of multi-variety and small-batch prints. It belongs to the cutting and delivery table that discharges the A4 paper printer body type, and is connected to a binding machine that can perform glue binding.

in conclusion

Based on the above, it can be seen that the digital technology aims at CIP3 and has penetrated all aspects of the printing environment. The above is a combination of the digital systems of the United States, Germany, France, Israel, and Japan's powerful manufacturers. function. For reference to introduce this technology. (Finish)