Citric acid (cA) and chitosan are used as durable press and antimicrobial finishing agents for cotton, and are applied by means of the conventional pad-dry-cure process. CA is expected to react with hydroxyl groups in cellulose and chitosan or with amino groups in chitosan to form ester crosslinking or an inter-ionic attraction. Durable press appearance ratings of 3.5-4 are imparted with CA and chitosan treatments. The cotton fabric treated with CA alone shows antimicrobial properties. These and durable press performance are retained through twenty washing and tumble drying cycles. Strength retention improves more with CA and chitosan than with CA alone.
Get full access to this article
View all access options for this article.
References
1.
Andrew, B.A.K. , Blanchard, E.J., and Reinhardt , R.M., Fabric Whiteness Retention in Durable Press Finishing with Citric Acid, Textile Chem. Color. 25 (3), 52-54 (1993).
2.
Bertoniere, N.R., King, W.D., and Welch, C.M., Effect of Catalyst on the Pore Structure and Performance of Cotton Cellulose Crosslinked with Butanetetracarboxylic Acid, Textile Res. J.64, 247-255 (1994).
3.
Choi, H.M., Nonionic and CationicCuring Additives Which Improve the Whiteness of Citric Acid Treated Cotton, Textile Chem. Color. 25 (5), 19-24 (1993).
4.
Davidson, R.S. , and Xue, Y., Improving the Dyeability of Wool by Treatment with Chitosan, J. Soc. Dyers Colour.110, 24-29 (1994).
5.
Lewin, M., and Sello, S.B., "Chemical Processing of Fibers and Fabrics: Functional Finishes, Part A," vol. 2, Marcel Dekker, Inc. , NY, 1983, p. 13.
6.
Osato, J.A., Santiago, L.A., Remo, G.M., Cuadra, M.S., and Mori, A., Antimicrobial andAntioxidant Activities of Unripe Papaya, Life Sci.53, 1383-1389 (1993).
7.
Rippon, J.A. , Improving the Dye Coverage of Immature Cotton Fibers by Treatment with Chitosan, J. Soc. Dyers Colour.100, 298-303 ( 1984).
8.
Seventekin, N., and Ucarci, O., TheDamage Caused by Micro-Organisms to Cotton Fabrics , J. Textile Inst.84 (3), 304-312 (1993).
9.
Shin, Y., Hollies, N.R.S., and Yeh, K., Polymerization-Crosslinking of Cotton Fabric for Superior Performance Properties , Textile Res. J.59, 635-642 (1989).
10.
Tsuragai, K. , Yoshikawa, A., Tajima , J., and Ishii, Y., Preparation and Antimicrobial Activities of Crosslinked Chitosan Films, Sen-i Gakkaishi47 (4), 190-197 (1991).
Yang, C.Q., Effect of Nonformaldehyde Durable Press Finishing of Cotton Fabric: FR-IR Spectroscopy, Part II: Formation of the Anhydride Intermediate, Textile Res. J.63, 706-711 (1993).
14.
Yoshida, H. , Okamoto, A., and Kataoka, T., Adsorption of Acid Dye on Crosslinked Chitosan Fiber: Equilibria, Chem. Eng. J.48, 2267-2272 (1993).
