Shading plateless printing

In the pattern printing process, a pattern layout is often used to print the background color once, such as securities, trademarks, and decoration prints. These product specifications vary, and the number of prints is also very different, but the shading plate version can often be universal. Therefore, whether or not the old printing plate can be preserved to the maximum extent, continue to make full use of it, and exert its maximum effectiveness, it has a positive effect on improving economic efficiency and enhancing the vitality of stamp printing.

In the daily production, the author discovered that due to the limitation of the number and specifications of some products, small-size paper is often used for printing. It is completely unnecessary to re-produce a shading plate of a corresponding size and size. Because there are old versions that can be used, some printers often cut the open bottom version into nine open format or cut into twelve open or even smaller format for printing. Although it is more cost-effective to do so, you can avoid the trouble of making a new version. However, if the next time you want to print a large layout, the old small format will no longer be able to print a large layout. It was necessary to make a new plate with a large layout. It can be seen that adopting the “cutting method” to realize large-format printing of small format will inevitably lead to increased production costs and unnecessary economic waste. In response to this situation, the author changed his traditional production methods through in-depth exploration and practice. The innovation and improvement of the printing technology of the “Large version of Small Print” has preserved the old shading plate specifications intact and effectively saved money. When the transfer is less than the original size of the format, using the necessary "strain" measures, you can make the extra layout will not stain the ink, do not contact the packaging lining, to achieve normal printing, receive a good printing effect.

According to the theoretical concept of printing "Sanping" and the practical results, it is proved that the printing plate surface is the basic requirement for uniform ink brushing and uniform printing pressure. Then, the soft, thin, thin, solid resin plate, as long as it breaks the "conventional" in the adhesive plate pad, can cause the excess plate edge to sag, and it can not get the ink of the ink roller, nor does it produce an imprint. Traces do not damage the packaging lining. The need for printed layout, as long as the layout of the pad is appropriate, you can get even brushing ink to meet the normal printing conditions. It can be seen that the principle of printing the "Sanping" printing plate leveling concept can be extended from the principle of printing "Sanping", thus providing theory and practice for the implementation of non-normal printing "Large Edition Small Printing" process. in accordance with. Based on the above-mentioned concepts, the author only had the idea of ​​implementing the “large-printing” new process without cutting, and he had achieved initial success in production through bold practice.

Now, by way of example, if an 8K surface with a size of 39 x 27 cm is used for the printing plate (printing pattern), an 18 x 18 cm 18K product is to be printed. In order to completely maintain the original format, when loading, should first cut a size of 350g white paper 26 × 18cm size, it is appropriate to use the corresponding area of ​​double-sided tape on the back of the 8K shading plate at the appropriate place (vertical and horizontal two edges are aligned Can), immediately with a 39 × 27cm format double-sided tape to the entire back of the printing plate (including pads whiteboard site) directly attached to the plate, and then pressed firmly. As a result, in the 26 x 18 cm format, the layout of the layout is due to the fact that the multi-pad sheet and a layer of adhesive tape are significantly higher than the non-printed surface area, so that the printing surface can be properly inked and imprinted. The non-cushioned layout is slightly lower, so it does not get ink brush, there is a certain gap with the lining surface, and does not destroy the outer lining, which can meet the printing requirements and requirements of the “big print”. Due to the soft and elastic texture of the thin resin plate, the purpose of printing is achieved by adjusting the plate layout to achieve the purpose of adjusting the height of the layout. In this way, we can use "big size" old storage, printing a variety of small-size products, to achieve a version of multi-purpose, can be large and small, flexible and convenient, greatly improving the utilization of the printing plate.

Over the years, every time the author printed a variety of specifications of the universal shading plate, can be achieved without cutting to achieve "large printing" printing, not only saves a lot of plate making time, but also greatly shortened the production cycle, improve production Efficiency and economic efficiency. Especially because of its simple process, quick operation and good printing effect, it is highly satisfied with customers. (Text / Wei Gongyuan)