The effectofgammaradiationonthedyeingofcottonwithextractofturmeric(Curcumalonga L.)
powder hasbeeninvestigated.Cottonfabricandturmericpowderwereirradiatedtoabsorbeddosesof
1, 2,3,4and6kGyusingCo-60gammairradiator.Dyeingparameterssuchastemperature,pHand
mordantconcentrationwereoptimized.Dyeingwasperformedusingun-irradiatedandirradiated
cotton withtheextractsofun-irradiatedandirradiatedturmericpowderinordertoinvestigatethe
effect ofradiationtreatmentonthecolourstrengthofdyedfabric.Thereporteddataofun-irradiated
and irradiatedfabricsdyedwithun-irradiatedandirradiateddyeswereobtainedusingthespectraflash
SF-650.Thecolourfastnesstolight,rubbing-andwashing-fastnesspropertiesshowedthatgamma
irradiationhasimprovedthedyeingcharacteristicsfromfairtogood.