Preparation of nano disperse dyes from nanoemulsions and their dyeing properties on ultramicrofiber polyester |
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Authors: | Jae-hong Choi Min-ju Kang |
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Institution: | (1) Department of Textile System Engineering, Kyungpook National University, 702-701 Daegu, Korea;(2) Kolon Central Research Park, 449-900 Yongin, Kyunggi-do, Korea |
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Abstract: | Six nano disperse dyes were prepared using corresponding O/W nanoemulsions which were obtained with sodium laurylsulphate
and caprylic triglyceride. The average particle size of the dyes prepared were in the range of 110–130 nm. Exhaust dyeing
using nano dyes resulted in low exhaustion yields of 17–26 % on regular polyester fiber and 28–38 % on ultramicrofiber polyester.
The observed low exhaustion yields of nano disperse dye can be explained by the solubilization of dye particles into surfactant
micelles as well as the high stability of the nanoemulsions, these might reduce the capacity of dye uptake onto the fibers.
However, higher K/S values of dyeings with nano dyes on ultramicrofiber sites compared to those on regular polyester sites
suggested their potential to be more efficient dyes for finer denier microfiber polyesters. |
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Keywords: | Nanoemulsion Nano disperse dye Ultramicrofiber Exhaust dyeing |
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