Topic
Natural dye
About: Natural dye is a research topic. Over the lifetime, 739 publications have been published within this topic receiving 11269 citations. The topic is also known as: natural dyestuff.
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TL;DR: In this article, a review encompasses a summary of research performed in last 15 years (1998-2013) in different arenas of applications of natural dyes, with specific reference to technological development in natural textile dyeing and use of natural Dyes in functional finishing of textiles, food coloration and dye-sensitized solar cells.
681 citations
01 Dec 2009
TL;DR: In this paper, the authors have reported the studies available on the characterization and chemical/biochemical analysis of natural dyes; extraction of colorants from different natural sources; effects of different mordants and mordanting methods; conventional and non-conventional methods of natural dyeing; physico-chemical studies on dyeing process variables and dyeing kinetics; development of newer shades and analysis of colour parameters for textiles dyed with natural dye.
Abstract: This paper reports the studies available on the characterization and chemical/biochemical analysis of natural dyes; extraction of colorants from different natural sources; effects of different mordants and mordanting methods; conventional and non-conventional methods of natural dyeing; physico-chemical studies on dyeing process variables and dyeing kinetics; development of newer shades and analysis of colour parameters for textiles dyed with natural dyes; and test of compatibility for application of binary mixture of natural dyes. The chemical modification of textile substrate for improving dyeability, attempts for improvement in overall colour fastness properties and survey of some traditional processes of natural dyeing in different parts of India have also been discussed.
367 citations
TL;DR: The textile material impregnated with these natural dyes, however, showed less antimicrobial activity, as uptake of these dyes in textile material is below MIC.
329 citations
TL;DR: In this paper, the light fastness of selected natural dyes (madder, weld and woad) and the effect of some commonly used antioxidants and UV absorbers on the lightfastness of these dyes were evaluated.
283 citations
TL;DR: In this article, a review discusses development of natural dyes and their effect on various performance parameters of dye-sensitized solar cell and discusses their application in the field of this technology.
Abstract: Dye sensitized solar cell converts visible light into electricity using sensitization of the cell. Performances of dye sensitized solar cells are mainly based on dye used as a sensitizer. Now a days study of dyes extracted from natural resources is the main concern for researchers. Application of natural dyes is a promising development in the field of this technology. Natural dyes are cutting down high cost of metal complex sensitizers and also replacing expensive chemical synthesis process through simple extraction process. Natural dyes are abundant, easily extractable, safe material causes no environment threat. These can be extracted from flowers petals, leaves, roots and barks in the form of anthocyanin, carotenoid, flavonoid and chlorophyll pigments. This review discusses development of natural dyes and their effect on various performance parameters of dye sensitized solar cell.
281 citations