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Journal |
Textile Coloration and Finishing |
Year / Vol., Issue, Month |
2020 / V.32,no.4,Dec |
Title |
Dyeability of Nylon Fabrics with Dyestuff for Supercritical Fluid
Dyeing (1) : C.I. Disperse Red 167, C.I. Disperse Violet 93 |
Authors |
Hyunseuk Choi*, Shin Park1 and Taeyoung Kim1 |
Institution/Affiliations |
DYETEC, 1Daejoo Machinery |
Pages/Total page |
pp.217 ~ 225 / 9 |
Language |
Korean |
Abstract |
In this study, the dyeing characteristics of nylon fabric which is dyed with
supercritical fluid were investigated. There were two dyes used in the dyeing
experiment: C.I. Disperse Red 167 and C.I. Disperse Violet 93. Dyeing temperature,
pressure, and leveling time were fixed at 110¡ÆC, 250bar, 60minutes, and the
experiment was conducted with dyeing concentration of 0.1, 0.3, 0.5, and 0.85% o.w.f.
The analysis of the experimental results was found out through the measurement of
washing fastness and color coordinate. In addition, the calibration curve of each dye
was drawn up and the amount of remaining dye was checked by measuring the
absorbance of the residual dye. As a result of color difference measurement, as the
concentration increased, the L* value decreased and the K/S value increased. However,
the increase in K/S value compared to the amount of input decreased as the
concentration increased. The comparative experiment on the amount of residual
dye(C.I. Disperse Red 167) in the pot showed that 99.14% of the amount was dyed
at the concentration of 0.1% o.w.f, while it rapidly decreased to 77% at 0.85% o.w.f.
C.I. Disperse Violet 93 dye also decreased from 0.5% o.w.f to 93.91%. In the
washing fastness experiment of both dyes, the level of washing fastness began to
decrease from samples dyed at 0.5% o.w.f. It may be because the simply absorbed
dye was produced instead of completely being fixed in the amorphous region of the
nylon fiber. |
Keywords |
supercritical fluid, dyeing concentration, dyeability, azo dye, leveling |
Download |
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Reference |
http://koreascience.or.kr/journal/OSGGBT.page?&lang=ko |
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