Journal ArticleDOI
Application of Novel Eco-friendly Natural Dye Extracted from Leaves of Neem on Silk Fabric
Nabawia A. Abdel-Zaher,Amal A. El-Ebissy,Ebtsam S. Al-Amoudy +2 more
- Vol. 5, Iss: 4, pp 1-16
TLDR
Abdel-Zaher et al. as mentioned in this paper analyzed the effect of different dye bath concentrations in the range 40-240 g/L on the reflectance spectra of the unexposed and exposed silk fabric was followed by using spectrophotometric technique.Abstract:
In the present work, optimization of extraction natural dye from neem (Azadirachta indica) leaves with respect to dye bath concentration on silk fabric was studied before and after exposing to artificial daylight for 160 h. The effect of different dye bath concentrations in the range 40-240 g/L on the reflectance spectra of the unexposed and exposed silk fabric was followed by using spectrophotometric technique. The absorption coefficient, optical band gap energy and extinction coefficient as well as color strength were calculated from the reflectance data and the wash fastness was tested. The color parameters: the relative brightness (L*), color constants (a* and b*), whiteness index (W), color difference (∆E), chroma (C*), hue (H), and tint (T) and the CIE tristimulus values (xr, yr, and zr) were also determined. The obtained results showed that the absorption and extinction coefficients, color strength and color parameters were highly affected by changing dye concentration. In addition, it was also noticed that the variations in the values of the optical band gap energy with increasing dye concentration may be due to the induced structural change in the system. In addition, the dyed silk samples have shown good washing fastness properties. The washing fastness grade for color change ranged from 4 to 5, whereas from 4 to 4/5 for color staining with all samples. The present study indicates that the natural Original Research Article Abdel-Zaher et al.; AJOPACS, 5(4): 1-16, 2018; Article no.AJOPACS.40614 2 dye extracted from neem leaves has good potential in textiles dyeing and meet the environmental future demands technology of high quality fantastic dyed pattern through an economical point of view.read more
Citations
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Journal ArticleDOI
The Neem Tree Azadirachta indica A. Juss. and Other Meliaceous Plants: Source of Unique Products for Integrated Pest Management, Medicine, Industry and Other Purposes. Edited by H. Schmutterer. Weinheim, Federal Republic of Germany: VCH (1995), pp. 716, DM198.00. ISBN 3-527-30054-6.
TL;DR: The extending use of neem is an example of `science learning from culture' which is comprehensively illustrated including neem's uses in modern medicine, soap production, rope making and as shade trees.
Journal ArticleDOI
Extraction and Application of Novel Eco-friendly Natural Dye Obtained from Leaves of Sanamicky on Silk Fabric
TL;DR: Al-Amoudy et al. as discussed by the authors investigated the effect of changed dye bath concentration on the reflectance spectra using spectrophotometer tool and CIE tristimulus values.
Book ChapterDOI
Natural finishes, technologies and recent developments
TL;DR: In this paper, the authors discuss the various natural finishing substances such as chitosan, sericin, enzymes, starches, celluloses, gums, dextrins, melanin, lignin, natural clay, and their derivatives in textile finishing applications one by one.
References
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Journal ArticleDOI
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TL;DR: It is shown by theory and experiment that reflectance and absorption of a nonhomogeneous specimen depend on the direction of illumination, whereas transmittance does not.