In recent years, the proportion of flexographic printing in the printing industry has been on the rise, especially in the field of packaging and printing. The reason is that on the one hand, environmental protection has become a focus of social concern, and the water-based ink used in flexographic printing is the most environmentally friendly of all printing methods; Convenience. In the field of narrow-width flexographic printing, labels are mainly used. The machine is small and the speed is low. The post-press processing is better controlled and the configuration is simpler. Therefore, manufacturers of flexographic printing machines are generally equipped with post-processing stations, and only need to be equipped with molds when using. This article is mainly talking about the post-press processing of medium and wide-format flexographic printing machines (800mm ～ 1500mm) used in the field of packaging and printing.
The application of medium and wide format flexographic printing machines in the packaging and printing industry has been relatively mature abroad. In China, packaging and printing has always been the protagonist of offset printing. It used to be, now it is, and its dominant position will be unshakable for a longer period in the future. However, in recent years, due to the rapid development of China's economy, some special packaging and printing industries in China are out of environmental protection and cost considerations (of course, I think these considerations first come from customers. After all, the requirements of end customers can be determined in this regard. Market), began to use flexographic printing. For now, it is mainly used in the field of fast food boxes and liquid beverage packaging boxes. Due to its wide range of applications, medium and wide-format flexographic printing presses cause uncertainty and professionalism in post-press processing, which makes many wide-format flexographic printing press manufacturers not equipped with post-press processing stations, basically From roll to roll. However, one of the advantages of flexographic printing is the high efficiency of inline processing. So after the customer purchases a flexographic printing machine, the next thing is to find a professional post-press equipment supplier to solve the problem of post-line processing of flexo printing. As a pioneer in the domestic post-press processing industry, Shanghai Bernaire-Yahua Company has provided perfect post-press solutions for many domestic and foreign printer manufacturers in recent years.
Let's take two cases to discuss in detail the application of inline processing on medium and wide format flexo printing machines.
In November 2007, Shanghai Bernell-Yahua Company provided a set of post-press round-pressing and round-linking equipment for an Egofa flexo machine (format 850 mm) purchased by a well-known listed company, mainly producing KFC fast food boxes. The set of equipment provided includes four parts: indentation unit, die cutting unit, paper receiving device, and simple paper receiving device. The power (gear box transmission), registration and correction equipment for printing are provided by the Egofa flexo printing machine. After the printed web material comes out of the flexo printing machine, it first enters the indentation workstation. The function of this station is precise indentation. After finishing, it enters the die-cutting station, where the packaging box is formed, and the excess waste is collected at a specific location with the waste removal system of this station, and then it enters the paper receiving device. This station is responsible for stacking layers of die-cut cartons neatly, and there are many rollers pressing on it to facilitate the next manual paper collection. Simple paper collection is manual paper collection on a wide belt table. This part can also be changed to automatic paper stacking. According to different shapes of products, the complexity of the structure of the automatic paper delivery system varies. Taking into account the current situation in the country, basically all paper is collected manually.
In addition, Bernell-Yahua can also provide optional accessories, including adding a group of workstations (mainly determined by the complexity of the product), adding a registration correction system to make the entire system more independent and follow-up after printing. The equipment has better matching, and the gear drive is changed to servo drive, and then an unwinding device is added to become an independent post-printing production line. [next]
In July 2007, Shanghai Bernell-Yahua Company provided an in-line indentation and perforating production equipment for a newly introduced Italian 1300 mm wide unit flexo printing machine for a famous beverage packaging and printing customer, mainly producing brick type Drink package. This set of equipment includes register deviation correction control system and indentation and punching workstation (servo drive). After printing, the roll material enters the register deviation correction system, after adjustment, it enters the indentation and punching workstation, and finally returns to the rewinding unit of the printing machine. The independent registration correction system on the one hand guarantees the integrity of the printing machine, on the other hand it also guarantees the accuracy of post-press processing, but it also increases the cost, especially after the use of servo drive.
This is a high-configuration, high-standard inline system, which has reached the international level in terms of accuracy and speed, and such a configuration can operate normally when printing does not require post-processing. Therefore, the successful operation of this system has very important significance for both the customer and the Bernell-Yahua company: brick-type beverage bags are an emerging market in recent years, with rapid development and huge potential. Customers can take this Expand its dominant position in the market, quickly occupy a larger market, and get rid of vicious competition with competitors in the low-end market; Bernaire-Yahua can also consolidate its equipment in the brick beverage packaging after-processing market Absolutely dominant position, continue to lead the market.
In addition to providing on-line supporting equipment and round-rounding tools for many domestic and foreign flexo printing machines, Bernaire-Yahua also provides on-line supporting equipment, workstation units, and more well-known domestic and foreign web gravure printing machine manufacturers. The round die cutting tool and its supporting services make packaging and printing truly complete from printing to post-press processing.
With the rapid development of China's economy, Bernaire-Yahua will rely on the synchronous advanced technology of the US and European parent companies, rely on its own continuous technological transformation and technological innovation, and will provide better one-stop printing for the majority of printing and packaging customers. Post-die cutting processing service.
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