but the choice of a suitable ink (paint) is not easy. Common signs screen printing inks are the following:
1 baking enamel: is a single liquid-based formulation, when heated cross-linking, preferably storage performance. It can be stored for six months to a year. Have a good
finish, wear resistance, chemical and weather resistance, and therefore the most commonly used. Alkyd, acrylate, polyester and having these characteristics. Epoxy resin powder tends to
fracture and generally not for outdoor use, but it dries quickly, has good chemical resistance properties.胡平衡 alkyd enamel with physical characteristics, such as chemical resistance and
weather resistance, formability, hardness and gloss, is the most widely used.
2, air dried enamels: drunk acid commonly made, starting oxygen in the air, after the reaction to achieve cure. Drunk acid enamels performance from the use of oil type and
quantity. The longer the drying time of oil, enamel drying time is long. When the speed of the drying conditions, the drying time is long paint generally have good surface durability. The
paint used for outdoor metal plate.
3, melting volatile ink: solvent evaporated to rely on only in order to achieve dry. The final properties of the coating material according to formulation as liquids before
performance inherent in a given polymer. Such a thermoplastic polymer containing acrylic acid. In order to play the main part of the screen printing ink is usually often subject to
dissolution damage. Some gasoline and alcohol-insoluble acrylic acid, wherein the membrane surface can be in contact with, and thus, a thermoplastic acrylic, vinyl polymers, and other soluble
parts of the ink they use based on a plastic substrate.