The production process of environmental protection immediate dyestuffs in printing and dyeing factories is generally: two soaking and two padding-steaming (102~105℃, 45~60s)-water cleaning-(color preservation solution)-air drying. Roll-coil dyeing is the process of dipping textile fabrics in a pad-dyeing solution, rolling them, leaving them idle for a period of time under the condition of slow rotation, and then post-processing. Energy-saving instant dyes for polyester/cotton (polyester/viscose) textiles: polyester/cotton, polyester/viscose blended cotton fabrics and other chemical fibers with different characteristics are dyed in the same bath. This requires that the instant dyes have high-quality high-temperature reliability and Excellent improving power and repeatability, good color fastness and environmental protection characteristics.

Initial dyeing rate: the percentage of dyeing in the early stage (or dyeing speed)

Level dyeing: The level at which chemical dyes are evenly distributed on the surface of the dyed object and its chemical fibers. Is it evenly distributed in each part of the surface layer of the dyed material, and is the dye evenly distributed in the chemical fiber? Examples of the four conditions that are distributed inside the chemical fiber.