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Effects of N2 post-discharge plasma treatments on wool fabrics*

Published online by Cambridge University Press:  06 October 2006

C. Canal ,
R. Molina ,
P. Erra  and
A. Ricard
C. Canal*
Affiliation:
Surfactant Technology Department, Instituto de Investigaciones Químicas y Ambientales de Barcelona – Consejo Superior de Investigaciones Científicas, 08034 Barcelona, Spain Centre de Physique des Plasmas et leurs Applications de Toulouse, Université Paul Sabatier, 31062 Toulouse, France
R. Molina
Affiliation:
Optical and Applied Physics Department, Universitat de Barcelona, 08034 Barcelona, Spain
P. Erra
Affiliation:
Surfactant Technology Department, Instituto de Investigaciones Químicas y Ambientales de Barcelona – Consejo Superior de Investigaciones Científicas, 08034 Barcelona, Spain
A. Ricard
Affiliation:
Centre de Physique des Plasmas et leurs Applications de Toulouse, Université Paul Sabatier, 31062 Toulouse, France
*
criscanal@yahoo.com
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Abstract

Direct low temperature plasma (LTP) has been studied for some years now as an alternative eco-friendly technology for achieving shrink-resistant wool fabrics, its action being attributed to the varied active species existing in the plasma. In this paper, for the first time, the efficiency of a post-discharge plasma treatment on the shrink-resistance of wool fabrics has been evaluated. The density of active species present in the nitrogen plasma post-discharge (PD) has been determined by optical spectroscopy and their effects on the increase of hydrophilicity at different treatment times have been recorded through drop test and contact angle techniques. Analysis of the surface by X-ray Photoelectron Spectroscopy (XPS) has shown the increase in N and O – containing functionalities. The post-discharge has shown to be effective in reducing the area shrinkage of the fabrics and its effects have been compared to those obtained by direct LTP.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 36 , Issue 1 , October 2006 , pp. 35 - 41
Copyright
© EDP Sciences, 2006

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Footnotes

*

This paper has been presented at “15th International Colloquium on Plasma processes (CIP)”, Autrans, 6–9 June 2005.

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