An attempt was made to dye alkali swollen and alkali swollen solvent exchanged cotton with a C.I. Reactive Blue 5 dye from the mixture of dimethylformamide and various nonpolar solvents. At a suitable dimethylformamide-nonpolar solvent ratio and alkali concentration used for cotton pre-swelling, it was possible to get 100% dye bath exhaustion and dye fixation as high as 77%. The dyeability of cotton was dependent on the dielectric constant of the nonpolar solvent and its absence in the internal liquid phase closely associated with the fiber as demonstrated by the im bibition values.
Blanchard, J. Eugene, Cotton Dyeing in Glycol Solvents, Textile Res. J.50, 3, 147-152 (1980).
3.
Chavan, R.B., and Miles, L.W.C., Adsorption of Anionic Dyes on Water Swollen Solvent Exchanged Cotton from Dimethylformamide-Trichloroethylene Solvent Mixture, " Proc. Symon. The Physical Chem. Dyeing and Finishing Process," UDCT, Bombay, February 1976, p. 38-47.
4.
Chavan, R.B. , Solvent Dyeing of Cotton with a Reactive Dye , J. Soc. Dyers Colour.92, 59 (1976).
5.
Chavan, R.B., and Bose, A.Application of Reactive Dyes on Cotton from Dimethylformamide Trichloroethylene Solvent Mixture, "Proc. 19th Tech. Conf, ATIRA, BTRA and SITRA, 1978.
6.
Chavan, R.B. , and Datta, C., Dyeing of Cotton with Reactive Dyes from Water and Dimethylformamide Assisted Solvent Systems, Cellu. Chem. Tech.15, 2, 179-192 (1981).
7.
Chavan, R.B. , The Use of Solvent Non-solvent Mixture for Purification of Anionic Dyes, Textile Res. J.46, 435-437, (1976).
8.
Silver, H.M. , Water Assisted Solvent Dyeing of Cellulose , J. Soc. Dyers Colour.90, 3, 111 ( 1974).
9.
Stevens, C.B. , and Peters, L., The Effect of Solvents in Dyeing , J. Soc. Dyers Colour.73, 23 (1957).
10.
Stevens, C.B. and Peters, L., The Effect of Solvents in Dyeing , J. Soc. Dyers Colour.74, 183 (1958).
11.
Suda, Y., and Nakajima, F., Adsorption of Direct Dyes from Non-Aqueous Media II. Adsorption Isotherm of Direct Sky Blue FF form Aqueous Alcoholic Solution. Bull. Res. Inst. Polym . Textiles99, 49, B57 (1972).
