"Large print"
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In the printing process, a pattern is often used to print a base color, such as securities, trademarks, and decorative prints. These product specifications vary and the number of prints varies greatly, but the shading plates are often versatile. Therefore, it is possible to maximize the preservation of old printing plates, continue to make full use of it, and exert its maximum efficiency, which has a positive effect on improving economic efficiency and enhancing the vitality of embossing.
In the daily production, the author found that due to the limitation of the quantity and specifications of some products, it is often used to print on small-sized paper. It is not necessary to re-create a shading version of the corresponding size printing format. Because there are old versions available, some printers often cut the eight-open version into a nine-page or cut into twelve prints, even smaller prints. Although this is more cost-effective, it can save the trouble of making a new version. But if you want to reprint the big page next time, the old small layout will not be able to print a large layout. I had to make a new printing plate with a large layout. It can be seen that using the "cutting method" to achieve large-format printing of a large format will inevitably lead to an increase in production costs and unnecessary economic waste. In response to this situation, the author has changed the traditional production methods through in-depth exploration and practice. Innovative and improved the printing process technology of “Large Edition”, which kept the old specifications of the original pattern intact and saved the funds effectively. When the transfer is smaller than the original size of the film, the necessary "strain" measures can be used to make the excess layout without ink or contact with the package lining, to achieve normal printing, and to receive good printing results.
According to the theoretical concept of printing “Sanping” and the practical results, the printing layout is the basic requirement for accepting uniform brushing and satisfying uniform printing pressure. Then, the soft solid resin plate, as long as the "conventional" is broken on the stencil in the stencil, the excess stencil can be sunken, and the ink of the ink roller is not obtained, and the embossing is not produced. Traces do not cause damage to the lining of the package. For the printing layout, as long as the layout is suitable, the ink can be evenly brushed to meet the normal printing conditions. It can be seen that the principle of printing "Sanping" can extend the idea of breaking the condition of printing plate in the printing "Sanping", thus providing theoretical and practical implementation for the realization of the process of printing "big print". in accordance with. Based on the above ideas, the author has produced the idea of implementing a new process of “big print” by implementing the uncut version. Through bold practice, it has achieved initial results in production.
Now, an example will be described. For example, on a 8K format of a printing plate (backprint) of 39×27 cm, a 26×18 cm 18K product is to be printed. In order to completely maintain the original format, when loading the plate, first cut a piece of 350g white paper of 26×18cm size, and stick it with the double-sided tape of the corresponding area on the back of the 8K shading plate (aligning the two sides of the vertical and horizontal sides) Yes), then use a 39×27cm double-sided tape to directly bond the back of the entire printing plate (including the white plate of the pad) to the plate, and then press it tightly. In this way, in the layout of the 26×18cm web, due to the multi-padding of a whiteboard paper and a layer of tape, it is obviously higher than the non-printing layout, so that the printing layout can be normally inked and embossed. The unpadded layout is slightly lower, so there is no ink brushing, 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 the "big print". Due to the soft and elastic texture of the thin resin plate, the difference in the size of the plate is achieved to achieve the purpose of adjusting the height of the layout, and the conditions required for printing are achieved. In this way, it is possible to use the old version of "large size" to print various small-sized 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, every time I print a variety of general-purpose shading patterns, I can achieve "big print" printing without cutting the plate, 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 customer satisfaction.