A Study of Soluble-Powdered Natural Dyes

Ngo, June Siok Kheng and Ong, W.F. and Ahmad, F.B. and Bujang, K.B. (2013) A Study of Soluble-Powdered Natural Dyes. Research Journal of Textile and Apparel, 17 (1). pp. 104-112. ISSN 1560-6074

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Official URL: https://doi.org/10.1108/RJTA-17-01-2013-B011

Abstract

This paper highlights an on-going study that produces soluble-powdered natural dye extracts from Sebangki barks (Neesia spp., Bomb.; Tristaniopsis spp., Myrt.), Engkerabai Paya leaves (Psychotria viridiflora Zoll. ex. Miq.) and Engkudu roots (Morinda citrifolia L.). These three natural colourants are typically used by the native Iban community in Sarawak to dye silk threads for Pua Kumbu weaving. The two primary objectives of this study are to convert natural dye extracts into soluble powder using solvent extraction and to formulate textile dyeing recipes with good colourfastness and lightfastness using powdered natural dyes extracts. The successful experiments show that distilled water and ethanol can be used as solvents to extract natural dyes from Neesia spp., Bomb.; Tristaniopsis spp., Myrt. barks, Morinda citrifolia L. roots, Psychotria viridiflora Zoll. ex. Miq. leaves. In addition, it is proven that the method of freeze drying is capable of converting liquid dye extracts into soluble powder.

Item Type: Article
Uncontrolled Keywords: Solvent Extraction, Soluble-powdered Natural Dyes Extracts, Neesia Spp., Bomb., Tristaniopsis Spp., Myrt., Psychotria Viridiflora Zoll. Ex. Miq., Morinda Citrifolia L., Textile Dyeing, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, research, Universiti Malaysia Sarawak
Subjects: N Fine Arts > ND Painting
Divisions: Academic Faculties, Institutes and Centres > Faculty of Applied and Creative Arts
Depositing User: Karen Kornalius
Date Deposited: 28 Aug 2017 02:42
Last Modified: 28 Aug 2017 02:42
URI: http://ir.unimas.my/id/eprint/17407

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