抄録
The dyeing behavior of partially chlorinated polyolefine fibres with a thiazine type cationic dye and mono azo disperse dyes were investigated.
As the result it is obtained that each dye uptake is increased with increase of chlorination degree of the fibre.
It is assumed that the dyeing behavior of cationic dye is mainly due to the ion-dipole interaction between positively charged cationic dye and C-Cl group in the partially chlorinated fibre, but the dipole effect of the fibre is weaker than that of the fluorinated fibre.
It was found that the rate of penetration of cationic dye into the outer surface of the partially chlorinated fibre was decreased by increasing the chlorination degree of the fibre. The reason for this result is assumed that the cationic concentration of internal solution in the fibre should be increased with assistance of the small inorganic cations which are located on the negatively charged chlorine sites of the fibre. It may be expected, therefore, that the diffusion of the dye is retarded by the repulsive action of the inorganic cations.
The dyeing behavior of disperse dye may be principally due to the dipole-dipole interaction between a functional group (e. g. amines) of dye and C-Cl group in the partially chlorinated fibre.
