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>Fundamental studies on solvent dyeing with tetrachloroethylene. III. Effect of water added to the solvent dyebath on the diffusion of disperse dyes in poly(ethylene terephthalate)
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Fundamental studies on solvent dyeing with tetrachloroethylene. III. Effect of water added to the solvent dyebath on the diffusion of disperse dyes in poly(ethylene terephthalate)
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机译：Fundamental studies on solvent dyeing with tetrachloroethylene. III. Effect of water added to the solvent dyebath on the diffusion of disperse dyes in poly(ethylene terephthalate)
AbstractThe diffusion and adsorption of disperse dyes on poly(ethylene terephthalate) (PET) from the tetrachloroethylene (TCE) dyebath were investigated by the method of cylindrical film roll when water was added to the TCE dyebath. The diffusion coefficients of three disperse dyes were increased with an increase in the addition of water to the TCE dyebath, and that of C.I. Disperse Violet 8 showed a peak. The solubilities of water in TCE in the absence and presence of disperse dye were measured at 90°C by Karl Fischer titration. The solubilities in TCE were 0.040 in the absence of dye and 0.041–0.045 g H2O/100 g TCE in the presence of disperse dye. In the presence of Violet 8, the solubilities showed a peak with increasing addition of water. The effect of water addition on the diffusion coefficients was attributed to the dissolution of water in the TCE dyebath. The water dissolved in TCE brought about an additional swelling of PET swollen previously by TCE. No marked influence on the surface concentration of dye was observed by the water addition to T
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