Environmental impact of printing cylinder inks on printing equipment
The plate cylinder is an indispensable printing equipment in the printing process, but the plate cylinder has certain speciality compared with other types of printing equipment. The plate cylinder needs to use a large amount of ink in use, and the ink is improper. Use can cause damage to the surrounding environment. This article focuses on the impact of ink on the environment during the use of printing equipment plate cylinders. 1, ink viscosity and drying speed In order to scrape excess ink from the surface of the plate cylinder, the blade must penetrate the ink film, so when the viscosity of the ink is large, a large blade pressure is required. Therefore, the viscosity of the ink should be reduced as much as possible to reduce the pressure of the scraper. 2, hard sand, dust impurities If there are hard particles in the ink, the plate cylinder is easily scratched by hard particles when the ink is scraped, which affects the quality of the printed product, and the plate cylinder is scrapped. In addition, the impurities on the surface of the substrate are also easily mixed into the ink. It takes a long time to accumulate too much, and it is easy to damage the plate cylinder. Therefore, it is necessary to keep the substrate and ink as clean as possible. 3. Impure substances, coarse particles, foreign bodies, etc. are mainly caused by the following factors: (1) The auxiliary agent mixed in the ink or the ink may be precipitated as the temperature changes, and the pigment may agglomerate to generate coarse particles. (2) Some foreign matter is carried by the film. When the film adsorbs dust due to static electricity and the additive in the film precipitates more into the ink, foreign matter is formed. Especially when the workshop is too dry, the film is easy to adsorb dust due to static electricity, which in turn affects the life of the plate cylinder. (3) When using a pigment with a high hardness, even if it is kneaded, it may cause a cut. If the pigment used in red, blue ink or the like is difficult to grind, the cut line is relatively easy to occur. (4) The drying system draws in dust or air ducts from the outside air for a long time. Article source address: http:// Spring Mattress,Twin Gel Memory Foam Mattress,Hybrid Mattresses,Memory Foam Spring Mattress Foshan Aussie Hcl Furniture Co., Ltd. , https://www.hclexport.com
