In the plate printing process, a pattern is often used to print the background color once, such as securities, trademarks, decorative prints, etc. The specifications of these products are different, and the number of prints is also very different, but the shading plate can often be used universally. Therefore, whether the old printing plate can be preserved to the greatest extent, continue to make full use of it, and maximize its effectiveness, which has a positive effect on improving economic efficiency and enhancing the vitality of relief printing.
However, due to the limitation of the quantity and specifications of some products, small-size paper is often used for printing, and it is not necessary to remake a shading plate of a corresponding printing size. Because there are old editions that can be used, but some printing companies often cut the eight-fold base plate into nine-format printing or twelve-screen printing, or even smaller format for printing and so on. Although this is more cost-effective for a while, it saves you the trouble of creating a new version. But if you want to reprint the large layout next time, the old small layout cannot be printed again. Had to make a new printing plate with a large layout, it can be seen that the use of the "cutting method" to achieve large-format printing on a small format will inevitably result in increased production costs and unnecessary economic waste. In response to this situation, the author changed the traditional production method through in-depth exploration and practice. Innovated and improved the printing technology of the "large version of small printing", so as to keep the specifications of the old shading version intact and effectively save money. When the transfer format is smaller than the original format, the necessary "strain" measures can be used to make the extra layout not stained with ink or contact the packaging lining, to achieve normal printing and receive good printing results.
According to the theoretical concept of printing "three flats" and practical results, the flatness of the printing plate is the basic requirement for accepting uniform ink brushing and meeting uniform printing pressure. Then, as for the thin solid resin plate with soft texture, as long as the “conventional†is broken in the pad link in the sticky plate, the extra edge of the plate can be recessed, and the ink of the inking roller can not be obtained, nor the impression The traces do not damage the lining of the package. As for the layout that needs to be printed, as long as the layout height is appropriate, ink can be evenly brushed to meet the normal embossing conditions. It can be seen that from the principle of printing "three flats", the assumption of breaking the condition of printing plate flat in printing "three flats" can be extended, thus providing theory and practice for the implementation of the process of abnormal printing "large plate small printing" in accordance with. Based on the above concept, the author came up with the idea of ​​implementing the new technology of "large version and small printing" without cutting the plate. Through bold practice, it has achieved initial results in production.
Let's take an example to illustrate. For example, on an 8K format with a printing plate (shading plate) size of 39 × 27cm, an 18K product of 26 × 18cm is to be printed. In order to keep the original format completely, you should first cut a piece of 350g whiteboard paper with a size of 26 × 18cm, and paste it with the corresponding area of ​​double-sided tape on the back of the 8K shading plate. Yes), then use the double-sided tape with 39 × 27cm format to directly bond the back of the whole printing plate (including the whiteboard part of the pad) to the plate holder, and then press it firmly. In this way, the layout part of the 26 × 18cm format is obviously higher than the non-printing part because of the extra pad of whiteboard paper and a layer of tape, so it can ensure that the printing part is normally inked and embossed. The unpadded layout is slightly lower, so no ink is obtained, and there is a certain gap with the surface of the liner, and the outer liner is not damaged, which can meet the printing conditions and requirements of "large version and small printing". Due to the soft and flexible texture of the thin resin plate, through the difference of pads, the purpose of adjusting the height of the plate surface is achieved, and the conditions required for printing are achieved. In this way, it is possible to use the "large format" old storage plate to print a variety of small-format products to achieve a multi-purpose version, which can be large or small, flexible and convenient, and greatly improve the utilization rate of the printing plate.
Over the years, the author has been able to print "large-size and small-print" printing without cutting the plate every time when printing various general-purpose shading plates of various specifications, which not only saves a lot of plate-making time, but also greatly shortens the production cycle and improves production. Efficiency and economic benefits. Especially because of its simple process, fast operation and good printing effect, it has won customers' satisfaction.
Bamboo Ceiling,Hotel Decorative Ceiling,Bamboo-Knitted Combined Ceiling,Bamboo Modern Style Ceiling
Sichuan Shihai Import And Export Trade Co.Ltd , https://www.zgshzm.com