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Textile materials with a pH‐sensitive function

Textile materials with a pH‐sensitive function Purpose – The purpose of this paper is to develop textile materials with a pH‐sensitive function. Design/methodology/approach – As a start point, the feasibility of incorporating pH‐indicators in conventional textiles using standard dyeing processes was investigated. Next, a pH‐indicator was incorporated into a nylon nanofibrous structure by adding the dye to the polymer solution before the start of the electro‐spinning process. Findings – The authors' results proved that it is possible to develop a pH‐sensor using conventional textiles dyed by a standard dyeing process. Also, the incorporation of a pH‐indicator dye into a nanofibrous structure was possible. Moreover, reproducible samples could be obtained. Furthermore, the majority of the obtained textile structures showed a clear colour change with a change in acidity. This halochromic behaviour was, however, different from the behaviour of the dyes in solution due to dye‐fibre interactions. Originality/value – The knowledge obtained in this study can lead to the development of a textile pH‐sensor. This sensor can be used in a broad field of applications since a colour change is a non‐disturbing but clear signal which can perform a first warning function. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Clothing Science and Technology Emerald Publishing

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Publisher
Emerald Publishing
Copyright
Copyright © 2011 Emerald Group Publishing Limited. All rights reserved.
ISSN
0955-6222
DOI
10.1108/09556221111136539
Publisher site
See Article on Publisher Site

Abstract

Purpose – The purpose of this paper is to develop textile materials with a pH‐sensitive function. Design/methodology/approach – As a start point, the feasibility of incorporating pH‐indicators in conventional textiles using standard dyeing processes was investigated. Next, a pH‐indicator was incorporated into a nylon nanofibrous structure by adding the dye to the polymer solution before the start of the electro‐spinning process. Findings – The authors' results proved that it is possible to develop a pH‐sensor using conventional textiles dyed by a standard dyeing process. Also, the incorporation of a pH‐indicator dye into a nanofibrous structure was possible. Moreover, reproducible samples could be obtained. Furthermore, the majority of the obtained textile structures showed a clear colour change with a change in acidity. This halochromic behaviour was, however, different from the behaviour of the dyes in solution due to dye‐fibre interactions. Originality/value – The knowledge obtained in this study can lead to the development of a textile pH‐sensor. This sensor can be used in a broad field of applications since a colour change is a non‐disturbing but clear signal which can perform a first warning function.

Journal

International Journal of Clothing Science and TechnologyEmerald Publishing

Published: Aug 9, 2011

Keywords: Textiles; Acidity; Alkalinity; Colours technology

References