2019
DOI: 10.4314/bcse.v33i3.3
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Improving the efficiency of Nesogordonia papaeverifera (Danta) as a natural dye in textile making industry

Abstract: An attempt was made to extract natural colourant from the bark of N. papaeverifera. The optimisation of the extraction procedure was evaluated using various solvents. The optimal colourant extraction was observed with acetone as solvent at constant temperature of 70 °C for 1 h. The main extracted colourant compound was isolated using column chromatography and characterised by ultraviolet-visible spectrophotometer, mass spectrometry, proton and 13 C nuclear magnetic resonance spectrometry and Fourier transform … Show more

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Cited by 5 publications
(6 citation statements)
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“…The test for color fastness to washing was determined using the ISO 105-CO6:2010 test method [ 28 ]. The fastness of the dyed washed samples was assessed using the standard methods.…”
Section: Methodsmentioning
confidence: 99%
“…The test for color fastness to washing was determined using the ISO 105-CO6:2010 test method [ 28 ]. The fastness of the dyed washed samples was assessed using the standard methods.…”
Section: Methodsmentioning
confidence: 99%
“…The test for colour fastness to washing was determined using the ISO 105-CO6:2010 test method [25]. The fastness of the dyed washed samples was assessed using standard methods.…”
Section: Wash Fastnessmentioning
confidence: 99%
“…After 30 mins of dyeing, 3.0 g sodium sulphate was added to improve exhaustion. The samples were then removed, washed with distilled water, and dried at 50 °C [28].…”
Section: Direct Dyeingmentioning
confidence: 99%
“…The mordanting baths was prepared using two different mordants, which are stannous chloride (4%) and copper (II) sulphate (6%), by adjusting the pH to 5 using acetic acid. The initial temperature of the mordanting bath was set at 40 °C and it was brought to boiling over 20 mins and held at 100 °C for 1 h [28]. The dyeing process with the extracted compound was started at 40 °C, and the temperature was increased to 100 °C over 20 mins and held at this temperature for 1 h. All the samples were rinsed with cold water to remove dyes from the surface and dried at room temperature.…”
Section: Mordant Dyeing Of Polyamidementioning
confidence: 99%