Talk about the new technical highlights of China's sheetfed offset presses
According to industry statistics, in the first half of 2014, the operating conditions of domestic key printing equipment manufacturing enterprises declined. Among them, sales decreased by 13.39% compared with 2013, total profit decreased by 55.02%, and only export delivery value increased by 13.98%. Growth of 1.22%. The 10 companies that produce sheetfed multicolor offset presses are even more difficult to operate. Only three companies saw a slight increase in the first half of 2013, and the remaining seven sales decreased by 6.9% to 50.2%. Sheetfed offset printing machine is An important type of printing equipment. In this field, domestic brands have been strongly squeezed by large foreign companies and their development has been suppressed. However, a number of new equipment and new technologies have emerged, which has improved the market adaptability and competitiveness of domestic offset printing equipment. . 1. New double-sided offset printing machine came out The above content is selected from the 11th issue of “Printing Technology·Digital Graphic Arts†in 2014. More journal content please pay attention to the journal channel. Marble Chopping Board,Cutting Board,Wheat-Straw Cutting Boards,Chopping Board Yangjiang Teammade Industrial Co., Ltd , https://www.yadokitchen.com
Two devices were introduced to the market this year. First, the new CSS10402B large-duplex double-color offset printing machine developed by Jiangsu Changxin has become the first double-sided two-color offset printing machine in China. The printing efficiency has been greatly improved. Recently, this equipment passed the national technical appraisal, not only the indicators reached the JB/T10828-2008 "sheet-sheet double-sided printing machine" industry standard requirements, but also the high precision requirements, such as paper feeding and paper-printing accuracy Standard requirements ≤0.04mm, measured results 0.018mm and 0.013mm; pressure non-uniformity standard requirements ≤15%, measured 6.95%; pressure instability standard requirements ≤0.06mm, measured 0.021~0.029mm; printing roller round jump standard The requirement is ≤ 0.02 mm, and the actual measurement is 0.008 to 0.011 mm. According to media reports, the equipment has entered more than 20 printing companies. This year, the company sold six large-duplex double-sided offset presses in one book printing company in Beijing, including two large-duplex double-sided offset presses. Product innovation drives the company to grow against the trend.
The second is the WIN34S double-sided printing press developed by Weihai Printing Machine. With a maximum feed width of 340mm x 460mm and a maximum printing speed of 10,000 sheets per hour, this machine is suitable for fast and short-run books and commercial printing , making it a new choice for the printing market.
2. Large format offset printing machine is complete in specifications
In the true sense, the domestic large-format sheet-fed multi-color offset press has appeared in the 6th Beijing International in 2005. At the printing technology exhibition, Beiren Group and Jiangsu Chang Group exhibited the series. Henan Xinji also launched the same product at the 2006 Shanghai All India Exhibition after the show. After several years of development, Jiangsu Chang Group and Henan New Machine have become the leader in this field. They have mass-produced full-size and ultra-full-size monochrome, two-color and multi-color sheetfed offset presses, and the product specifications have been expanded to 1180mm and 1300mm. 1420mm, 1650mm and other specifications (only 2050mm format is blank), opening up a new world in the sluggish printing equipment market.
In addition, the multi-color offset printing presses that have been sold for many years in the market are constantly innovating and expanding in specifications, which can fully satisfy the printing and packaging. The needs of the printing industry . The printing specifications of the equipment include 750mm, 790mm, 920mm, 1020mm, 1040mm, 1050mm, 1060mm, covering the entire market with Daquan Zhang and ultra-full sheet equipment.
3. Offset equipment connection level
year 2004, Manroland first introduced cold stamping technology. This hot stamping process not only does not require hot stamping, but also saves energy and achieves green hot stamping, and enables the hot stamping process to be connected with printing, thereby improving production efficiency. This kind of application time in domestic printing equipment is not too long. In 2009, Zhejiang Yugang Company introduced PS version of six-color reciprocating (also called intermittent) self-adhesive. Label printing machine, this equipment adopts advanced independent drive technology, servo motor rewinding and tension control system, and is equipped with glazing unit, circular die cutting unit and drying unit. Recently, it has realized the connection of cold stamping unit. . In addition, Guangzhou Duoweilong Company also launched a cold stamping unit, and successfully installed on equipment such as narrow-format label printing machines.
North Group also developed a laser light having a sheet-fed offset UV-connection function, such a device can be transferred to a laser film pattern on the printed matter, printed packaging materials to achieve the connection is performed after laser printing The film pattern is transferred, thereby achieving surface decoration, anti-counterfeiting and 3D effects, which make the surface of the package print colorful. Recently, Beiren Group Company has launched the BEIREN300A-1+L+C off-color monochrome multi-function offset printing machine, which can realize printing, glazing, laser, reverse, cold and anti-counterfeiting functions on one machine, providing a new choice for high-end packaging printing.
Beijing Yuheng Limin Company also launched a laser transfer printing machine, which can also achieve the above printing results. The company also introduced a separate external glazing unit that allows the sheetfed four-color offset press to finish glazing.
In order to improve the quality of printed surface decoration, packaging and printing enterprises generally adopt the method of laminating. Although there are relatively environmentally friendly methods such as water-based coating and instant lamination, the combination of paper and plastic film will bring difficulties to paper recycling and degradation. UV glazing is efficient and does not pose environmental concerns. Now, the glazing unit has been connected with a single-sheet multi-color offset printing machine. Many domestic manufacturing companies have realized multi-color printing + UV glazing + spot color printing unit configuration, using infrared or ultraviolet connection drying. Some companies have recently introduced energy-saving LED-UV glazing technology. LED drying light source consumes only one-tenth of the energy of ordinary light sources, but its service life can be increased by more than 15 times. At the same time, the amount of varnish is greatly reduced. No odor, can be used for the inner packaging of food and medicine. LED drying technology can achieve glazing and drying of the entire web, as well as local glazing and drying, to achieve controllable operation of energy use.