The Solubilization of Disperse Dyes by Dispersing Agents at 127°C

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Abstract
The solubilities in water at 127°C of eight disperse dyes of various structures have been determined, as well as the effect of eleven different dispersing agents on the solubilization of these dyes. A special cell was designed for these experiments. While the solubilities of six of the eight dyes are similar and those of the remaining two larger by approximately one order, solubilization by dispersing agents covers a wide range of values. No clear pattern of dye‐dispersing agent interaction has emerged from the work, especially with regard to the effects of dye structure, and a more detailed investigation is therefore being undertaken.