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NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Fibre & Textile Research (IJFTR) >
IJFTR Vol.37 [2012] >
IJFTR Vol.37(3) [September 2012] >
| Title: | A novel bio-technique using laccase enzyme in textile printing to fix natural dyes |
| Authors: | El-Hennawi, H M
Ahmed, K A
El-Thalouth, I Abd |
| Keywords: | Antibacterial activity
Blended fabrics
Cotton
Flavanoids
Laccase
Natural dye
Screen printing |
| Issue Date: | Sep-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Laccase enzyme has been used as a substitute
of harmful mordants in fixation of three different types of
flavonoids (natural dyes), namely rutin, morin and quercetin, in printing of
fabrics and the optimum conditions to
achieve the best results are determined. The effects of enzyme concentration, pH of printing paste, treatment time
and temperature as well as the nature of the printed substrate on the
properties of printed goods expressed as K/S and overall fastness
properties have been thoroughly investigated. The results show that the optimum
conditions for using rutin
in printing cotton fabrics are enzyme concentration 60g/kg printing paste, pH
4.5, treatment time 60 min and temperature 60◦C. Laccase undergoes
enzymatic oxidative polymerization of flavonoids giving the coloured pigment.
It is also observed that with this technique, the above three kinds of
flavonoids could be used for printing all kinds of fabrics, as in case
of pigments, with very good to excellent colour fastness. However, the colour
strength of the printed goods depends on
the concentration of enzyme, pH of printing paste, treatment time,
temperature of treatment, fixation conditions, nature
of flavanoids used, and nature of printed fabric. |
| Page(s): | 245-249 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Source: | IJFTR Vol.37(3) [September 2012]
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