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jewellery packaging boxes Clever use of plate making techniques to make screen printing products more perfect SWIFT

by:SWIFT     2019-09-29
It is often said that the seven-point plate making and three-point printing are familiar with the entire process of printing in order to produce a printing plate that satisfies various copying requirements of the original document, and finally realizes the fidelity of the copying of the original document by printing. Therefore, the clever use of some techniques in the process of platemaking can often be the finishing touch for screen printing. First, the indentation technology Indentation technology refers to two or more colors superimposed graphics, according to the actual situation in the plate-making according to the actual situation in accordance with the color separation order to superimpose the previous color version of the printing plate on the basis of the original size slightly Indent, so that when overprinting is accurate, so that the graphics more realistic. For example, the “China Environmental Protection” mark on various packaging solutions products on the market is overprinted with three colors of green, yellow and gold. In actual printing, many prints are difficult to deliver to users when overlaying green and yellow due to overprinting, resulting in great losses. Some people think that spot color green can be used to solve this problem. However, whether to increase the spot color green must also consider whether the company's own printing equipment has enough color groups to achieve this process. If four-color, six-color, eight-color, or even ten-color printing presses have already been filled up, how to solve them? In addition, there are at least two drawbacks for each additional color: First, the cost increases; second, it is more difficult for the printing operation. In this case, it is a good method to apply indentation technology during the plate making process. At the time of plate making, the yellow or green plate is indented, and the problem of overprinting is not easy to solve. In addition, many texts on the packaging solutions are also overprinted with multiple colors. According to common sense, text separation is not recommended. According to the data, the image overlay error in color printing is below 0.3mm, and the human eye does not feel obvious. When the text overlay error is around 0.1mm, the human eye becomes sensible. But in some occasions, in order to highlight certain artistic effects of the text, when color separation and overprinting must be adopted, indentation techniques can be used in the platemaking to reduce the printing difficulty. Second, the bleeding technology Bleeding technology is to ensure the stability of the original design of the size of the post-press processing, in the separation of the plate, according to the actual situation, some of the color version in the original design size to extend a certain proportion. Modern packaging solutions does not only go through a single printing process, but also undergoes many processes from printed products to finished products, such as: compounding and bag making in flexible packaging solutions, coating, film coating, and die cutting in paper packaging solutions. These processes can result in large errors between the design size and the actual size. Therefore, it is necessary to rationally apply bleeding techniques based on different designs. For example, many main colors of flexible packaging solutions are full-size solids, and in order to ensure the stability of the basic dimensions during compounding, slitting, and bagging processes, the main color version of electric engraving expands by 1.5~3mm so that the finished products can meet the requirements. . Related tags: Customized food packaging solutions bags, aluminum film bags manufacturers,
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