Synthesis of some surfactant-type acid dyes and their low-temperature dyeing properties on wool fiber

Dyeing wool fiber consumes considerable energy and causes contamination, and low-temperature dyeing of wool fiber is a long-standing and often-mentioned topic. The modification of wool fibers and the introduction of novel dyeing processes are common approaches to resolve these issues. In this paper, we attempt to solve these problems from the aspect of dyes. Select tadpole-shaped and surfactant-type acid dyes (D1-D4), which contain a long-chain...