Kinetics of Wool Dyeing with Acid Dyes

Abstract

Studies of the thermodynamics and kinetics of dyeing over the past 60-70 years have not resulted in complete acceptance for one mechanism for the dyeing process. Contrary to the two existing explanations of wool-dye isotherm data (the Gilbert-Rideal and Donnan theories), the uptake of the acid dye used in this study conforms to the law of mass action. In addition, although it has generally been accepted that the kinetics of wool dyeing is diffusion controlled, the uptake rate of the acid dye used in this study can be modeled by a second-order rate expression based on the formation of a protein-dye complex as the rate determining step. The mechanism developed from this study involves the dye and other anions present in the dye solution interacting independently with the wool, rather than the dye displacing smaller anions in a strict ion exchange manner.

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References

Alexander, P. , and Hudson, R.F. , The Kinetics of Wool Dyeing, Part I: Simple Acid Dyes, Textile Res. J. 20, 481 (1950).

Bird, C.L. , "The Theory and Practice of Wool Dyeing," 3rd ed., SDC, Bradford, U.K., 1951, p. 20.

Bruce, R.L. , Broadwood, N.V. , and King, D.G. , Dyeing of Wool with Acid Dyes: Equilibria and Kinetics, in "Proc. 9th Int. Wool Text. Res. Conf., Biella," vol III, 1995, p. 3.

Elöd, E. , On the Theory of the Dyeing Process, The Influence of Acid Dyes on Animal Fibres, Trans. Faraday Soc. 29, 327-347 (1933).

Gilbert, G.A. , and Rideal, E.K. , The Combination of Fibrous Proteins with Acids, II: The Adsorption of Dye Anions , Proc. R. Soc. A182, 167 (1944).

Hampton, G.M. , and Rattee, I.D. , Surface Barrier Effects in Wool Dyeing, I: The Location of the Surface Barrier, J. Soc. Dyers Colour. 95, 396 (1979).

Hill, A.V. , Diffusion of Oxygen and Lactic Acid Through Tissues, Proc. R. Soc. B104, 39 (1928-29).

Joko, K. , Koga, J. , and Kuroki, N. , Dyeing Behavior of Extended Wool Fiber—The Effect of Extension on Dyeing Rate, in "Proc. 7th Int. Wool Text. Res. Conf, Tokyo," vol 5, 1985, p. 23.

McGregor, R. , Some Modem Aspects of Dyeing Theory or 'Things Might Not Be as They Seem ,' J. Soc. Dyers Colour. 83, 477 (1967).

10.

Medley, J.A. , and Andrews, M.W. , The Effect of a Surface Barrier on Uptake Rates of Dye into Wool Fibers, Textile Res. J. 29, 398 (1959).

11.

Meybeck, J. , and Galafassi, P. , The Effect of Hydrocarbon Substituents in Azo Dyes in Wool Dyeing, Appl. Polm. Symp. (18), 463-472 (1971).

12.

Neale, S.M. , Dyeing Theory : Retrospect and Prospect, J. Soc. Dyers Colour. 64, 116 (1949).

13.

Nursten, H.E. , and Williams, K.E. , The Preparation and Assessment of a Series of Pure Dye Acids, J. Soc. Dyers Colour. 89, 49 (1973).

14.

Peters, L. , Some Physico-Chemical Properties of Damaged Wools, D. R. Lemin and T. Vickerstaff , Symp. Fibrous Proteins, SDC, Bradford, U.K., 1946, p. 129.

15.

Peters, L. , and Lister, G.H. , The Combination of Acids and Colour Acids with Keratin, Trans. Faraday Soc. 16, 24 ( 1954).

16.

Peters, R.H. , "Textile Chemistry," vol. 3, Elsevier, Oxford, U.K., 1975. p. 222.

17.

Robinson, C. , and Mills, H.A.T. , The Colloid Chemistry of Dyes: The Aqueous Solutions of Benzopurpurin 4B and Its Isomer Prepared from m-Tolidine, Proc. R. Soc. 131A, 576 (1931).

18.

Schreiner, G. , and Kemter, W. , Dialogue on the Theory of Dyeing , Melliand Textilber. Eng. 4, E153 (1992 ).

19.

Speakman, J.B. , and Smith, S.G. , The Structure of Animal Fibres in Relation to Acid Dyeing, J. Soc. Dyers Colour. 4, 121-135 (1936).

20.

Vickerstaff, T. , "The Physical Chemistry of Dyeing." 2nd ed., Oliver and Boyd, London, 1954, p. 354.

21.

Yen, M. , and Lee, H. , The Aggregative Effect of Acid Dyestuff (Orange II) on the Activation Energy of Wool Dyeing, J. Chin. Inst. Eng. 9, 587-593 (1986).

22.

Zao, W. , and Pailthorpe, M.T. , A Study of Wool Carbonizing, Part IV: Surface Barrier Effects in Rapidly Carbonized Wool, Textile Res. J. 57, 579 (1987).