Abstract
Active halogeno compound, i.e. picryl chloride, easily reactic with various free amines gave fast and level-color-dyeing for the several kind of fibres. Benzidine series showed excellent amines of the popular type and basic deys which have the free amino radical in their molecules, combining with picryl chloride, increased the light fastness.
Uniform tint of dye in the crystalline regions of vinylon and protection of spots or color removal from various fibres was made more satisfactory of reasonable selection of dyeing process.
Materials arranged in the order of dyeability of fibre concerned are as follows;
Vinyl chloride film>Acetate rayon>Vinylon and Cotton>Silk.
Dyeing mechanism of these fibres appears to be that of solid solution type.
