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.
M'Garrech
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Laboratoire de Radio-traitement, Centre National des Sciences et Technologies Nucléaires, Sidi-Thabet, Tunisia. mgslah@yahoo.fr
Ncib
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D003116:Color; D003124:Colorimetry / Q000379:methods*; D032561:Cotton Fiber; D004307:Dose-Response Relationship, Radiation; D005720:Gamma Rays; D003368:Gossypium / Q000528:radiation effects*; D009285:Naphthoquinones / Q000032:analysis / Q000737:chemistry* / Q000528:radiation effects*; D011829:Radiation Dosage
D009285:Naphthoquinones; C005090:lawsone