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Título

Physico-chemical and Dyeing Properties of Raw Wool Extracted By Pressurized CO2/Modifiers

AutorDomínguez, Carmen; Erra Serrabasa, Pilar; Bayona Termens, Josep María
Palabras claveSupercritical fluid extraction
Raw wool
CO2/modifier extracted wool
Wool quality
Dyeing behavior
Scanning electron microscopy
Fecha de publicación2010
EditorSage Publications
CitaciónTextile Research Journal
ResumenRaw wool fibers were extracted with CO2 with different organic modifiers (acetone, ethanol and methanol) at constant pressure and temperature. The influence of experimental extraction conditions on the properties of extracted wools was studied to determine the suitability of the fibers for textile applications. Suitable wool wax removal from raw wool fibers was qualitatively evaluated by optical microscopy and scanning electron microscopy observation as well as by whiteness, yellowness and brightness measurements. Moreover, the possible bulk fiber modification as a consequence of internal wool lipid extraction belonging to the cell membrane complex was assessed by determining the bursting resistance and dyeing behavior. The results suggest that both CO2/ethanol and CO2/methanol extraction methods provide well-scoured wool fibers with an acceptable dyeing behavior, the bulk modification being negligible.
Versión del editorhttp://dx.doi.org/10.1177/0040517509343785
URIhttp://hdl.handle.net/10261/45732
DOI10.1177/0040517509343785
ISSN0040-5175
E-ISSN1746-7748
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