Heat-resistant para/meta-aramid fiber Arlana: Dyeing and the properties of the dyed materials

The dyeing of the heat-resistant para/meta-aramid fiber Arlana with disperse and cationic dyes by the batch method involving a limited-swelling agent is considered. Some factors affecting the colorfastness of the resulting materials to light and weather are reported. Dye sorption by the fiber and the basic performance characteristics of the dyed fiber are considered. The dyeing technology suggested affords intense and stable colors without significantly changing the properties of the fiber.