THERMAL SCIENCE

International Scientific Journal

Lai-Jiu Zheng

,

Peng-Peng Yin

,

Fang Ye

,

Ju Wei

,

Jun Yan

EFFECT OF PRESSURE OF SUPERCRITICAL CARBON DIOXIDE ON MORPHOLOGY OF WOOL FIBERS DURING DYEING PROCESS

ABSTRACT
In this paper, the effect of pressure release rate on dyeing of wool fibers was studied in the supercritical carbon dioxide dyeing. Surface morphology, chemical composition and color difference at different pressure release rates were investigated by employing scanning electron microscope, color matching, and measuring instrument. Experiment data reveal that wool fibers are easy to be damaged with increasing pressure release rate. Fiber's surface brightness varies also with the pressure release rate. The phenomena are theoretically explained using Bernoulli's principle.
KEYWORDS
wool fibers, supercritical carbon dioxide, color difference, pressure release rate, Bernoulli's principle
PAPER SUBMITTED: 2015-02-06
PAPER REVISED: 2015-04-21
PAPER ACCEPTED: 2015-05-10
PUBLISHED ONLINE: 2015-10-25
DOI REFERENCE: https://doi.org/10.2298/TSCI1504297Z
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2015, VOLUME 19, ISSUE Issue 4, PAGES [1297 - 1300]
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EFFECT OF PRESSURE OF SUPERCRITICAL CARBON DIOXIDE ON MORPHOLOGY OF WOOL FIBERS DURING DYEING PROCESS

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence