Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 74: Issue 3
Dyeing of PA 6.6 fibers
Authors:
M. Queirós Domingues Universidade do Minho Departamento de Engenharia Tęxtil Campus de Azurém 4800-058 Guimarăes Portugal Campus de Azurém 4800-058 Guimarăes Portugal

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J. Rocha Gomes Universidade do Minho Departamento de Engenharia Tęxtil Campus de Azurém 4800-058 Guimarăes Portugal Campus de Azurém 4800-058 Guimarăes Portugal

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J. Martins Universidade do Minho, Departamento de Engenharia de Polímeros Campus de Azurém 4800-058 Guimarăes Portugal Campus de Azurém 4800-058 Guimarăes Portugal

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Pages:
749–759
Online Publication Date:
31 Oct 2004
Publication Date:
01 Dec 2003
Article Category:
Research Article
DOI:
https://doi.org/10.1023/b:jtan.0000011007.08133.fb
Keywords:
polyamide; dyeing; benzyl alcohol; low temperature; microfibers
Restricted access

Abstract  

Dyeing fibers at low temperatures has many advantages such as savings in energy and avoiding alterations to the physical properties of the fibers being dyed or other fibers also present in blends. The problem of low temperature dyeing in synthetic fibers is that it difficults the dye diffusion into the fiber. In the case of polyamide 6.6 microfibers, by using benzyl alcohol as an auxiliary dyeing, it was shown that good diffusion was obtained for the dye exhaustion with metal complex dyes at temperatures more than 30C below the normal dyeing temperature for the dye exhaustion with metal complex dyes. Using thermal analysis methods these results were shown to be caused by the lowering of the Tg of the fiber when in the presence of benzyl alcohol.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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