抄録
The dyeing behavior of nylon 6 fiber in water/perchloroethylene emulsion was studied with reference to the change in the fine structure.
Fiber sample was dyed with 1, 4-diaminoanthraquinone from perchloroethylene after a pretreatment in water/perchloroethylene emulsion. Also the fiber was dyed with the dye in water/perchloroethylene emulsion without the pretreatment. In both cases, addition of a small amount of water to perchloroethylene caused a considerable increase in the dye absorption of the fiber.
The fine structure was investigated from the measurements of shrinkage, density, water absorption, and X-ray diffraction. The increase in the shrinkage, crystallinity, crystallite size, and water absorption were larger for the fiber treated with the emulsion than for the fiber treated with perchloroethylene alone.
These results are briefly discussed in terms of the changes in the fiber structure and the distribution equilibria of the dye between the fiber, perchloroethylene, and water.
