In this study, the compatibility of disperse dyes was used to explore the relationship between them and the color stability of polyester fibers. From the dyeing absorption behavior test of individual disperse dyes, the dye uptake of a single dye at a specific concentration was obtained. Onset temperature (T1) and maximum absorption number rate (V) of the dye.
In this paper, twelve dyes are used to form six groups of dyeing combinations, and their on-tone build up is observed by staged dyeing. Data analysis and comparison are carried out one by one and a conclusion is drawn. It is found that the absorption curve of the individual dyes in combination is roughly The more similar the absorption curves are (that is, the higher the degree of consistency of T1 and V values), the better the dyeability of the same tone, that is, the better the compatibility of the dye combination.
In the dyeing temperature dependence test, it was found that the better the compatibility of the dye combination, the smaller the variation of the color difference value between them, and the values were all below 0.6 required by the general brand; in addition, it was also found that the Lab color coordinate (ΔL, Δa, Δb) values are also more concentrated, indicating that the stability of the color is higher, and the dyeing reproducibility is relatively better.
