Ribbon with bright colors is an ideal partner for many clothes and bags. However, to weave such a gorgeous ribbon, dyeing requires high technology. The dyeing process is determined by the material: 1. Characteristics (compactness) of polyester fiber-hot melt dyeing, high temperature and high pressure dyeing-selected dyes-disperse dyes-temperature-(hot melt dyeing) 190℃-(high temperature and high pressure dyeing) 130℃. 2. Characteristics of nylon (protein products) nylon fiber (with reactive functional groups)-steaming process-selected dyes-(weak) acid dyes-temperature-about 100 degrees Celsius. 3. Good pretreatment is the premise of successful dyeing of cotton products (cellulose fiber) ribbon, and the quality standard of pretreatment should be uniform, transparent and clean. Impurities and oil stains that affect dyeing should be effectively removed, and there are no chemicals such as oxidant, reducing agent, alkali and acid. The pretreatment quality of grey cloth with the same dyeing scheme should be consistent.