In the case of gravure printing, when the thickness of the ink film is uneven, it occurs. What is the cause of this phenomenon? How can we do protective measures? This article will discuss with you! In the case of gravure printing, when the thickness of the ink film is uneven, there are various reasons for the unevenness of the ink. In the case of gravure ink, the ink is poorly formulated, or the ink is inadvertently mixed when the ink is dispensed, and printing is performed. At the time, due to the phenomenon that the solvent ink is expanded or softened, the mesh that should be permeable to the ink is blocked, causing the effect of the plate film, so that the ink cannot pass normally. In order to prevent such failure, the prepared gravure ink (especially the old ink) should be filtered once and used before use. When reusing a used plate, the old ink attached to the frame must be completely removed. When the plate is kept after printing, it should be fully washed (including the scraper). If you do the above requirements, the accident of uneven ink will not happen. If the tip of the front end of the squeegee is damaged, a trace will appear along the direction of movement of the squeegee. Especially when printing transparent objects, there will be obvious unevenness of the ink. Therefore, the front end of the squeegee must be well protected so that it does not damage, and if it is damaged, it must be carefully ground with a grinder. The unevenness of the printing table also affects the uniformity of the ink. The ink layer of the convex portion is thin, and the ink layer of the concave portion is thick. This phenomenon is also called uneven printing ink of the gravure ink. In addition, if the back of the substrate or the printing table is dusty, the above failure may occur. Article source address: http:// Root Canal Motor,Dental Endo Motor,Wireless Endo Motor,Dental Root Canal Endo Motor Henan Hanchen Medical Technology Co., LTD , https://www.tchanchen.com