The ink itself, the printing paper and the printing environment temperature and humidity affect the abrasion resistance of the ink layer. The factors affecting the abrasion resistance of the ink layer are many and complex, but the ultra-simple from the perspective of the ink itself, the printing paper and the printing environment temperature and humidity . The abrasion resistance of the ink itself is mainly reflected in the cohesion and adhesion of the ink, and the ink wear resistance deteriorates when the ink cohesion force and adhesion decrease. The packaging factory can use high-abrasion UV surface oil to improve the wear resistance, and ensure the adhesion of the UV base oil by adjusting the process parameters or changing the materials. At the same time, abrasion resistance is also affected by the temperature and humidity of the printing environment. Wet-weather printers are prone to blurring and de-inking. This is because the humidity of the specimen causes moisture to soften, and the printing press must increase the pressure when the ink is transferred to. On paper, due to the high humidity of corrugated cardboard, it is easier to expand the font, causing printing blur or deinking. In addition to the above factors, abrasion resistance is also affected by the water absorbency of the printed paper. Paper has low water absorbency, so the water absorption of the ink is naturally reduced. The ink floating on the surface is easily deinked. If it is known that the water absorbability of the paper is poor, then the process must be improved from the tile line process. Whether the carton printing ink printing ink wear-resistance is good or not is mainly determined by the quality of the ink and the varnish on the surface of the carton. Therefore, when producing carton products with high abrasion resistance requirements, the ink supplier must be required to provide corresponding resistance. Grinding and adhesion of ink and Varnish. The abrasion resistance of the surface of the carton ink is detected by the applicable product range. The printing pattern is more complex. The white carton, the facial paper are the colored carton to be printed on the coated paper, and the carton surface is a full-print carton, etc. The surface of the box is large. A carton product with a relatively thick ink or ink layer. Test the abrasion resistance of the ink layer on the carton surface using the "dry friction test method" The manual detection method uses a cubic iron block weighing 2 kg. The size of the iron block is 100 mm in length, 50 mm in width, and 48 mm in thickness. The test white test paper with a width of 50 mm and a length of 220 mm will be tested. The paper is tightly attached to the iron block (the corresponding iron piece can be installed on the iron block to fasten the measuring paper). Then hold the iron piece of paper with your hand and move it back and forth evenly on the surface of the carton to be tested. (Note that the palm of your hand cannot apply pressure to the iron when moving, and should rely on the pressure exerted by the iron itself on the cardboard surface. Friction), the stroke of the movement is about 60 mm. According to the quality requirements of the product, after 40 rubs, the surface of the test paper is usually observed without any visible ink marks (Quality products allow a small amount of discontinuous line-like slight ink marks on the surface of the paper). Such as the surface of a more serious large-scale or continuous lines off ink marks, then the product surface ink printing layer there is a more serious phenomenon of discoloration (some demanding high-end customers, the carton surface abrasion resistance requirements can be achieved at least After 200 or more tests and even 400 tests, no visible de-inking will occur.) The detection principle of the friction tester detection method is equivalent to the manual detection method, but the above manual detection method is improved to the instrument operation, and the accuracy and stability of the detection are enhanced (the detection method is described in detail in the specification of the instrument). Conditional carton factory, only need to invest a certain amount of money to purchase the instrument, you can achieve convenient, fast and accurate inspection. At present, the domestic manufacturers of related instruments are Hangzhou Pinxiang Technology Co., Ltd. They produce PN-PID ink printing and decoloring testing machine. The instrument's technical parameters are in line with GB/T 7706 and GB/T 7706 requirements. Information Processing: Carton Street Give your kids an opportunity to explore the creative side of their personality with this amazing playhouse for kids indoor baby teepee play tent. Tipi Tent,Play Tent For Kids,Teepee Tent For Kids,Canvas Fabric Teepee Tent HANGZHOU JIEYUN IMP & EXP CO., LTD , https://www.jaalex-garden.com
This method is used to evaluate the anti-wear properties of printing inks on corrugated boxes. The test method usually uses manual detection method and friction tester detection method.
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December 27, 2022