Salt is a necessity of life, called salt salt bag lingerie, its quality is directly related to the quality and safety of the salt. In recent years, as China's society, science and technology, development of the economy, along with ability and people's living standards continued to improve and constantly strive for better quality of life. Salt packaging in terms of material, printing, shape and others have undergone significant changes. Ordinary plastic film packaging material from a single composite of paper and plastic packaging to the various types of security now come packaged; on the printed information from simple text to rich text advertising messages appear on the show and even now some of the salt bag; also joined the human design elements on the exterior. Meanwhile salt bags security has received more attention, to salt bag printing quality were enhanced.