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Title: Ellagic acid from gallnut (Quercus infectoria): Extraction and determination of its dyeing conditions for natural fibres
Authors: Onal, Adem
Sari, Ahmet
Soylak, Mustafa
Keywords: Dyestuffs
Ellagic acid
Natural fibres
Issue Date: Jul-2005
Publisher: CSIR
IPC CodeD 06 P 1/36
Abstract: The dyestuff of ellagic acid in gallnut (Quercus infectoria) was extracted and used in dyeing of woolen strips, feathered-leather and cotton using three types of mordanting methods at various pH values. Selected transition element salts [CuSO4 5H2O, FeSO4 7H2O, ZnSO4 7H2O, Al(NO3)3. 9H2O] were used as mordant agent at various pH. The dyed samples with highest fastness were obtained by Cu(II) for all samples except for cotton and by Al(III) for only cotton at pH 8 in the pre-mordanting method. It was also observed that gallnut plant based ellagic acid dyestuff would probably be an important raw material in dyeing process of natural textile fibers.
Page(s): 491-495
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.64(07) [July 2005]

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