Abstract
The dyeing behaviour of disperse dyes in perchloroethylene is considered. In particular, the relationship between distribution equilibrium and colour yield, the effect of auxiliary solvents on colour yield, the effect of water on the dyeing mechanism, the dependence of the colour yield on the amount of water and time and temperature of dyeing, and the effect of auxiliary solvents on the colour yield in water‐containing perchloroethylene liquors are discussed. The stripping of dyes from polyester with trichloroethylene is mentioned. Finally, the selection of dyes for use in the dyeing of polyester from perchloroethylene by exhaust processes is considered. The desire for a solvent‐based dyeing process can be fulfilled. Dyeing of polyester from perchloroethylene can offer a number of technical advantages which make it a genuine alternative process to the conventional dyeing methods.
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