Packaging for basic and special requirements of general printing inks, substrates of different materials, printing inks have different requirements. Package changing the materials used, so there will be a variety of different sorts of suitable packaging printing inks. However, some of the basic features of the various ink must have. Packaging of the basic requirements of a printing ink, good liquidity. Good mobility when using the ink easy to transport, easy to transfer the ink, the print head is not clogged. 2, after the printing ink to the substrate to be able to dry quickly, good adhesion, easy to rub off, ensuring clean print. 3, color printing ink to correct anodized wholesalers, do not fade, do not change. Question 1. Foaming reason screen printing inks will appear in print viscosity is too high, too dry, the version with the substrates have off too fast, bad layout, ink itself has a problem caused by other factors, may take appropriate measures to adjust, or add the right amount of defoamers and replacement ink. 2. blocking version because dry too fast, too slow printing, printing viscosity is too high, bad and improper use of thinner, printing ink wholesalers PP forum by the wind, ink fineness or with impurities caused by substandard. Drying rate should be adjusted TPE ink wholesalers, or replace ink. 3. pinhole reason is too smooth to be printed, the printed surface with a protective layer or grease impurities, caused by poor ink itself, and therefore must be printed on the surface was subjected to pre-treatment, adding a leveling agent or replace excellent ink. The reason is that the ink adhesion bad choice inappropriate, inadequate pre-treatment; substrates with debris, inadequate drying temperature and time; additives, curing agents, driers inappropriate dosage, stacked two-component ink color printing, Curing excellent background and other factors caused the accident. PP ink ink _ _ wholesalers constant Yawei printing equipment provided by the Dongguan City Hengli Hang Yawei printing equipment materials firm. Dongguan Heng Li Heng Yawei printing equipment materials firm (dghyw88.1688.com) (www.hengyawei.com) strong, credible, in plate making, printing supplies, and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Yawei constant printing equipment and you hand into the brilliant, for a better future!