Investigations of the distributions of two acid dyes within a dyed polyamide 6 substrate have been performed using the rolled-film method. The diffusion coefficients of the dyes increased with increase in the dye concentration in the dyebath and in the polymer. The more hydrophobic dye exhibited anomalous behavior which has been attributed to diffusion of small dye aggregates. Diffusion behavior of this dye in the presence of a nonionic surfactant has been explained in terms of the interaction equilibria between dye and surfactant species in solution.
Bell, J.P., Carter, W.C., and Felty, D.C., Dye Concentration Profiles Within Single Nylon Filaments, Textile Res. J.37, 512-516 (1967).
2.
Britton, H.T.S. , "Hydrogen Ions," London , Chapman and Hall, 4th Ed., Chap. 1, 1955, p. 357.
3.
Crank, J., "The Mathematics of Diffusion," Oxford, Oxford Univ. Press, 1964.
4.
Crank, J., and Park, G.S.," Diffusion in Polymers," London, Academic Press, 1968.
5.
Craven, B.R. and Datyner, A., The Interaction Between Some Acid Dyes and Nonylphenol-Ethylene Oxide Derivatives. III-A Discussion of Possible Modes of Interaction, J. Soc. Dyers Colourists, 83, 41-43 (1967).
6.
Delaney, M.J. "The Sorption of Acid Dyes and Nonionic Surfactants on Polyamide and Wool Substrates," Ph.D. Thesis, University of New South Wales, 1970.
7.
Delaney M.J. , and Datyner, A., TheInteraction between Acid Dyes and Nonionic Surfactants and its Effect on Sorption and Diffusion Behavior. Part 2—Sorption of Dyes and Surfactants on Nylon 6.6 Fibers from Finite Baths, J. Soc. Dyers Colourists, 87, 263-268 (1971).
8.
Hopper M.E., McGregor, R., and Peters, R.H., SomeObservations on the Concentration Dependence of Diffusion Coefficients of Acid Dyes in Nylon, J. Soc. Dyers Colourists, 86, 117-122 (1970).
9.
I uck, W., A Micromethod for the Measurement of Dye Diffusion , Ber. Bunsenges. Physik. Chem., 69, 255-264 (1965).
10.
Matano, C., TheRelationship between the Diffusion Cowents and Concentrations of Solid Metals (the Nickel-Copper System), JapaneseJ. Phys.8, 109-113 (1932-1933).
11.
McGregor, R. , and Harris, P.W., The Sorption of Ions by Polyamides, J. Appl. Polymer Sci., 14, 513-522 (1970).
12.
McGregor, R. , Peters, R.H., and Petropoulos , J.H., Diffusion of Dyes into Polymer Films. Part 3 Naphthalene Scarlet 4R in Nylon 6 / 6, Trans. Far. Soc., 58, 1054-1063 (1962 ).
13.
Nemoto, Y., Interaction Between Nonionic Surfactant and Dyestuffs, Proc. 4th Intern. Congress on Surface Active Substances, Brussels, 3, 537 (1964).
14.
Peters, R.H. , Petropoulos, J.H., and McGregor , R., A Study of the Diffusion of Dyes in Polymer Films by a Micro-densitometric Technique, J. Soc. Oyers Colourists77, 704714 (1961).
15.
Sand, H., The Use of Microphotometric Methods for Diffusion in Polyamides, Ber. Bunsenges. Physik. Chem.69, 333-338 (1965).
16.
Sekido, M. and Matsui, K., Vat Dyeing. I. Determination of Surface Concentration and Diffusion Coefficient by the Cylindrical Cellophane-film Roll Method, Sen-i Cakkaishi , 1964, 20, 778-790 (1964).
17.
Sekido, M., Iijima, T., and Takahashi, A., Diffusion of Dyes into Nylon Film, Kogyo Kagaku Zasshi68, 524-527 (1965).
18.
(a) Weisz, P.B., Sorption-Diffusion in Heterogeneous Systems. I. General Sorption Behaviour and Criteria, Trans. Far. Soc. , 63, 1801-1806 (1967). (b) Weisz, P.B., and Hicks, J.S., Soption-Diffusion in Heterogeneous Systems. II. Quantitative Solutions for Uptake Rates, Ibid.63, 1807-1814 (1967 ). (c) Weisz, P.B. and Zollinger , H., Sorption-Diffusion in Heterogeneous Systems. III. Experimental Models of Dye Sorption, Ibid.63, 1815-1823 (1967). (d) Weisz, P.B. and Zollinger, H., Sorption-Diffusion in Heterogeneous Systems. IV. Dyeing Rates in Organic Fibres , Ibid.64, 1693-1700 (1968 ).
