Colorimetric study of effect of gamma-radiation on the color of cotton fabric colored by "henna" dye.

Henna is a very popular plant in many countries, including Tunisia. Henna leaves have been used for thousands of years as a medicine, as a cosmetic and also for dyeing textile fabrics. This paper investigates the color modification of cotton, which has been colored by henna, due to gamma-ray irradiation. A cotton fabric tinted by means of a henna solution is irradiated using a (60)Co source at doses ranging from 0 to 25 kGy with a dose rate of 146.53 Gy/min. Decoloration of the henna dye in cotton fabrics was observed by studying variation of the L* and the h degrees as a function of the irradiation dose. This work reveals that cotton colored by henna can be used as a new indicator to differentiate between an unirradiated and irradiated product.

[1]  O. Kadri,et al.  Monte Carlo improvement of dose uniformity in gamma irradiation processing using the GEANT4 code , 2005 .

[2]  L. Angelini,et al.  Rubia tinctorum a source of natural dyes: agronomic evaluation, quantitative analysis of alizarin and industrial assays , 1997 .

[3]  N. Aziz,et al.  Effect of gamma-irradiation on the occurrence of pathogenic microorganisms and nutritive value of four principal cereal grains. , 2006, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine.

[4]  S. Burkinshaw,et al.  Dyeing of wool and nylon 6.6 with Henna and Lawsone , 1993 .

[5]  Tanveer Hussain,et al.  Optimization of alkaline extraction of natural dye from Henna leaves and its dyeing on cotton by exhaust method , 2009 .

[6]  M. Byun,et al.  Effects of irradiation and sodium hypochlorite on the micro-organisms attached to a commercial food container. , 2007, Food microbiology.

[7]  H. Ouada,et al.  Effect of post-irradiation thermal treatments on the stability of gamma-irradiated glass dosimeter , 2007 .

[8]  Erzsébet Takács,et al.  Effect of γ-irradiation on cotton-cellulose , 1999 .

[9]  O. Güven,et al.  Decoloration and degradation of some textile dyes by gamma irradiation , 2002 .

[10]  S. Raghu,et al.  Chemical or electrochemical techniques, followed by ion exchange, for recycle of textile dye wastewater. , 2007, Journal of hazardous materials.

[11]  A. Kovács,et al.  Dose measurements for characterization of a semi-industrial cobalt-60 gamma-irradiation facility , 2006 .

[12]  L. Machado,et al.  Effects of gamma rays on a restored painting from the XVIIth century , 2002 .

[13]  E. Takács,et al.  Effect of preswelling on radiation degradation of cotton cellulose , 2003 .