title: Dyeing wool and cotton fibres with acidic extract of Hibiscus rosa sinensis flower.
abstract: The focus of this work is to extract a natural dye for colouring camel wool as a substitute for synthetic dyes used in the Sadu House of Kuwait. Their target is to keep the tradition of tent and rug production natural in all its manifestations. Therefore, our task was to find an abundant source that provides a colour preferably red to purple. Hibiscus rosa sinensis (HRS) is an abundantly available plant in Kuwait that was explored for extraction of the red dye to colour camel wool permanently. The powdered petals of red flowers of HRS was extracted with 5% acetic acid which yielded a deep red colour that showed a great potential for woollen fibre dyeing. The use of mordants like alum and some metal salts manifested a wide range of fixed colours which intensified at 85 °C. The colours produced had excellent fastness and was accepted by the Sadu House.
authors.affiliation: a Faculty of Science, Department of Biological Sciences , Kuwait University , Kuwait City , Kuwait.
authors.forename: Lamya
authors.initials: L
authors.lastname: Hayat
authors.affiliation: a Faculty of Science, Department of Biological Sciences , Kuwait University , Kuwait City , Kuwait.
authors.forename: Dangly Ann
authors.initials: DA
authors.lastname: Jacob
mesh_terms: D019342:Acetic Acid; D000818:Animals; D003116:Color; D004396:Coloring Agents / Q000302:isolation & purification / Q000494:pharmacology*; D032561:Cotton Fiber; D035264:Flowers / Q000737:chemistry*; D031584:Hibiscus / Q000737:chemistry*; D007730:Kuwait; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D014935:Wool / Q000187:drug effects
chemical_list: D004396:Coloring Agents; D010936:Plant Extracts; D019342:Acetic Acid
keywords:   ; Hibiscus flower; Sadu house; acetic acid extract; red/purple permanent colour; stannous chloride–anthocyanin complex