Studies in the right-first-time dyeing of cellulose with reactive dyes: Role of material-to-liquor ratio

110-114<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 effect of variation in the material-to-liquor ratio on 37 commercially available reactive dyes (25 Procion and 12 Remazol) has been studied. It is observed that the extent of variation in the K/S value due to the variation in material-to-liquor ratio is different for different dyes. Based on the effect of variation in material-to-liquor ratio, the dyes have been classified into following three different groups: dyes which are marginally affected ; dyes which are moderately affected; and dyes which are significantly affected. The reproducibility of dyes which are marginally affected by the variation in material-to-liquor ratio is better than that of the dyes of other two groups.