Abstract:
Mixtures comprising water, tertiary amyl alcohol and tetrachlorodifluoroethane which, over substantially the entire course of their evaporation or distillation, form azeotropic nonflammable vapors containing tertiary amyl alcohol and tetrachlorodifluoroethane. These mixtures are useful in dry cleaning textile fabrics and fibers with reduced hazard of fire.
Abstract:
Solvent laden textile materials are passed through a steam chamber and thereafter a hot water bath to remove the solvent therefrom. The combination of steam and hot water, in that sequence of steps, mitigates difficulties heretofore experienced in the art and improves the efficiency of processes for removing solvents from textiles.
Abstract:
A method for cleaning soil from fabrics, whereby the fabrics to be cleaned are tumbled together with a quantity of water, detergent and transfer agent. The transfer agent comprises a material having a large surface area per unit mass, and the water comprises a quantity sufficient only to dampen the fabrics. The tumbling causes the water, the detergent and the transfer agent to contact the fabrics, and causes soil from the fabrics to be distributed over the combined exposed surface areas of the fabrics and the transfer agent. Subsequently, the soiled transfer agent is separated from the fabrics, whereby the fabrics are cleaned of the soil distributed onto the transfer agent. An improved domestic automatic clothes dryer is provided for performing therein the aforementioned method.