Volume No. 5 Issue No.: 3 Page No.: 648-651 January-March 2011

 

METHANOL EXTRACTS OF ANTHOCYANIN PIGMENT AND THEIR SUITABILITY ON FIBERS

 

Rupali Deshpande* and Alka Chaturvedi

Department of Botany, RTM Nagpur University Nagpur, Maharashtra (INDIA)

 

Received on : October 28, 2010

 

ABSTRACT

 

Anthocyanin pigments of Ixora flowers are used for dyeing purpose. Anthocyanin pigments are unstable in neutral and alkaline solution but have a quit stability in acidic solution. Extract of natural dye source is prepared by extracting the raw material in methanol containing Hydrochloric acid. In this study we extracted dye from dry powdered form of Ixora (red) flower. By applying on cotton and silk fibers we tested suitability and fastness property of dye on fiber. The cloth is dyed in various shades. Shades of dyes are depending on pretreatment of Hirda (Termenalia chebula) and type of fibers. Cotton fiber accepted methanol extraction and dyed well where as no coloration was found on silk fiber. On Silk fiber the fastness property of dye is good in pure aqueous medium where as result is not satisfactory in pure methanol medium. Combination of Water and Methanol extraction improve the fastness property of dye on Silk fiber in a small amount but result is poor as compare to Cotton fiber.

 

Keywords : Anthocyanin, Methanol extract, Ixora, Silk, Cotton

 

 

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