What is the role of a dye-bath conditioner in reactive dyeing?
A. Water is an essential part of wet processing of textiles. Water used for dyeing must have hardness below or around 10 ppm. Metallic ions present in the water cause uneven dyeing. Metallic impurities can be introduced through impurities present in Galuber’s salt and common salt even if soft water is used. In dyeing these ions can lead to uneven dyeing. So it is essential to chelate these ions so that they will not interfere in the dyeing process. These chelating agents / sequestering agents have practically no effect on metal ions in the chromophore of the dye. Reactolev NB: Is a specially developed dye-bath conditioner having chelating power even under alkaline conditions. As it is an alkali buffer, it helps in maintaining the constant alkaline pH throughout the fixation stage thus giving uniform level dyeing.
