Dyeing of acrylic fibres with monoazo disperse dyes in presence of benzyl alcohol: Part I

125-129<span style="font-size:11.0pt;line-height:115%; font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "times="" new="" roman";mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font:="" minor-latin;mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;="" mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">The adsorption isotherms and the rate of dyeing of three monoazo disperse dyes, with and without benzyl alcohol in the dye-bath, were determined and the effect of benzyl alcohol on these parameters was studied in the light of dye structure and solubility parameters of dyes, fibre and solvent. The basic nature of the dye and the presence of an optimum quantity of benzyl alcohol in the bath have favourable effect on the rate of dyeing and adsorption of disperse dyes on acrylic fibres.