Synthesis and characterization of natural red dye from Caesalpinia sappan linn
- Graduate Program of Mechanical Engineering, SebelasMaret University, Jl. Ir. Sutami 36 A, Surakarta (Indonesia)
- Department of Mechanical Engineering, SebelasMaret University, Jl. Ir. Sutami 36 A, Surakarta (Indonesia)
The study reports the synthesis and characterization of natural red dye. The dyes were extracted from woods of Caesalpiniasappanlinn at varied temperatures of 70, 80, 90, and 100°C for three hours. The dry wood chips and water at a ratio of 6:1 were immersed in the reactor of 150 liters. The absorbance spectra of the natural red dyes were measured by ultra-violet-visible spectroscopy. Meanwhile, Fourier transform infrared spectroscopy was used to investigate the functional groups of the natural red dyes. In addition, the basic production cost was calculated and the fastness property towards cotton fabrics was investigated according to the Indonesia national standard of 105-C06:2010, 105-B01:2010, and 0288-2008. The results showed that the functional groups found the extracted red dyes indicated the complex bond of brazilein with peak absorbance at a wavelength of 538-540 nm. The extraction temperature also changed the functional group of brazilein. From the color, the absorbance peak, the functional groups, and the main production cost, the best parameter to synthesize the natural red dyes from Caesalpiniasappanlinn was at a temperature of 80°C for two hours. Moreover, the natural red dyes has the fastness to wash resistance, light resistance, and scrub resistance by 4-5, 4, and 3-4, respectively. However, further studies for synthesis the natural red dyes by using a continuous reactor are required to identify the naturally complex compounds in brazilein for improving the fastness properties and for reducing the cost.
- OSTI ID:
- 22590853
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1717; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTRA
ABSORPTION SPECTROSCOPY
COTTON
DYES
EXTRACTION
FOURIER TRANSFORM SPECTROMETERS
FOURIER TRANSFORMATION
INDONESIA
INFRARED SPECTRA
SYNTHESIS
TEMPERATURE DEPENDENCE
ULTRAVIOLET SPECTRA
VISIBLE RADIATION
VISIBLE SPECTRA
WATER