Anti-Skinning Agents are added to paint to avoid the formation of skin, which occurs when the binder oxidises and polymerizes at the paint-air contact. Anti-skinning chemicals stop or slow down the oxidative processes that cause skin to form during storage and application. Color and film forming tendencies are unaffected. The temperature of the environment in which the paint is exposed, as well as the solid content of the paint, are directly proportional to the production of skin. This problem is exacerbated by poor formulation, production flaws, and processing flaws.
Furthermore, the created skin obstructs the spray painting equipment's nozzles, reducing the coat's appearance. Skinning is thought to have resulted in a 3-5 percent loss. Methyl ethyl ketoxime (MEKO) is by far the most widely used Anti-Skinning Agents in air-drying paints. Anti-skinning chemicals are therefore added to paints and printing inks to prevent unintentional skinning. Preventing skin formation may be required for a variety of reasons, including preventing in-can skinning during storage in a closed container or preventing ink from drying in the press duct. The former can be accomplished with volatile anti-skinning agents, whereas non-volatile anti-skinning chemicals, often known as antioxidants, are required for full nightly duct stability.
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