What are the technological processes of ribbon dyeing?

The dyeing process is determined by the material: polyester fiber characteristics (density)-hot melt dyeing, high temperature and high pressure dyeing-selected dyes-disperse dyes-temperature-(hot melt dyeing) about 190 degrees Celsius-(high temperature and high pressure dyeing) about 130 degrees Celsius. Characteristics of nylon (protein products) nylon fiber (with reactive functional groups)-steaming process-selected dyes-(weak) acid dyes-degree-about 100 degrees Celsius. The basic process flow of cotton products (cellulose fiber) dyeing workshop: polyester fiber feeding-pre-washing-pre-drying-coloring tank-pre-drying (infrared ray)-high temperature drying-post-washing (reduction cleaning)-post-drying-dripping tape. The function of infrared pre-baking: dye molecules are initially attached to the fiber to prevent problems such as flower. The function of high temperature curing is to make dye molecules fully enter the fiber and complete the dyeing process of dye on the fiber. The role of reduction cleaning: decompose excess dye molecules and ensure the color fastness of products. The function of nylon fiber feeding-dyeing tank-steaming with hot steam-after washing-after drying-steaming: make acid dye molecules fully react with corresponding functional groups in the fiber, and complete the process of dyeing the fiber with acid dye. The function of water washing: remove the unreacted dye molecules and ensure the color fastness of ribbons, ribbons and other products. The dyeing process of ribbon is related to the whole production process, and the dyeing process is the focus of the color image of ribbon appearance. According to the modern dyeing theory, the reason why dyes can dye fibers and have certain fastness on fiber fabrics is that there are various attractive forces between dye molecules and fiber molecules. The dyeing principles and processes of various dyes are quite different due to the respective characteristics of dyes and fibers, and cannot be generalized.