

Notes:
Page 77
Euro Biotechnology 2016
November 07-09, 2016
Volume 6, Issue 7(Suppl)
J Biotechnol Biomater
ISSN: 2155-952X JBTBM, an open access journal
conferenceseries
.com
November 07-09, 2016 Alicante, Spain
12
th
Euro Biotechnology Congress
Application of natural dye (neem) on silk fabric before and after exposure to UV/ozone
Nabawia A Abd Elzaher
1
, Ebtsam S Al-Amoudy
2
and Amal A El-Ebissy
1
1
National Institute for Standards, Egypt
2
King Abdulaziz University, KSA
N
eem plant as a source of natural dye was used to dye silk fabrics. This plant has not been exploited as natural dye by
far. Optimization of natural dye extraction from leaves with respect to dye bath concentration to aid exhaustion was
done. The effect of changed dye bath concentration on the reflectance spectra was followed using spectrophotometer tool. The
changes in the optical parameters including the CIE tristimulus values, color parameters, absorption coefficient, absorption
edge, band tail width, optical band gap, extinction coefficient and color strength were determined as a function of UV/ozone
exposure times. The data obtained indicated that the color parameters were highly affected by changing dye concentration
by this new dye. Finding shows that the natural dye extracted from leaves have good potential in textiles dyeing and can be
exploited further. So, the present work gives the chance to produce different hues from a new traditional natural dye to improve
the natural dyeing cultural heritage to meet the environmental future demands technology of high quality fantastic dyed
pattern through an economical point of view.
nabawia@yahoo.comJ Biotechnol Biomater 2016, 6:7(Suppl)
http://dx.doi.org/10.4172/2155-952X.C1.065