Studies on the Change of Physical Properties and Dyeing Behavior of Polyester Fiber Treated with Chlorinated Hydrocarbon/Water Emulsions(I)

Polyester섬유의 염소화 탄화수소/수 Emulsion처리에 의한 물성의 변화와 염색성(I)

Polyester fiber was pretreated with chlorinated hydrocarbon/water emulsions of various compositions. The chlorinated hydrocarbons used in this experiments were perchloroethylene, trichloroethylene and perchloroethane. The dyeing behaviors of the pretreated fibers with C.I. Disperse Violet I in water and that of untreated fibers with C.I. Disperse Violet I in emulsion were studied with reference to changes in the clatter properties of fiber. Also density and x-ray diffraction of the fibers were investigated as measure of crystalline region. The results obtained are briefly discussed in teams of the plasticization of the fiber structure formed during the pretreatment and chlorinated hydrocarbon/water emulsions dyeing. The results are as follows: 1) Shrinkage of polyester treated with chlorinated hydrocarbon/water emulsions was greater than that of sample treated with solvents alone. 2) The crystalline growth of polyester treated with the emulsion was also greater than that treated with solvents alone, and this tendency was in contrary order with regard to the crystal orientation. The order of increasing crystalline growth and decreasing crystalline orientation was, perchloroethylene/water