Prajapati_et_al-2018-Coloration_Technology.pdf (4.16 MB)
Laccase-catalysed coloration of wool and nylon
journal contributionposted on 2018-10-12, 14:29 authored by Chetna PrajapatiChetna Prajapati, Edward Smith, Faith Kane, Jinsong Shen
The potential for laccase (EC 220.127.116.11) to be used within the area of textile coloration, specifically for the generation of decorative surface pattern design, remains relatively unexplored. The current study presents a novel process for the coloration of wool and nylon 6,6 fibres via laccase oxidation of aromatic compounds as an alternative to conventional dyeing methods. Emphasis was placed on producing a diverse colour palette, which was achieved through the investigation of three different aromatic compounds as laccase substrates: 1,4‐dihydroxybenzene, 2,7‐dihydroxynapthalene and 2,5‐diaminobenzenesulphonic acid. Reaction processing parameters such as buffer systems and pH values, laccase and aromatic compound concentrations, and reaction times were investigated, all in the absence of additional chemical auxiliaries. Enzymatically dyed fabrics were tested against commercial standards, resulting in reasonably good colour fastness to wash. To demonstrate the coloration and design potential by laccase catalysation of aromatic compounds, specially constructed fabrics using a combination of undyed wool, nylon and polyester yarns were dyed using the one‐step laccase‐catalysed coloration process. The use of different fibre types and weave structures enabled simple colour variations to be produced. Shadow, reserve and contrasting effects were achieved with the laccase‐catalysed dyeing process developed. Important advantages over conventional processing methods include the use of simpler and milder processing conditions that eliminate additional chemical use and reduce energy consumption.
The authors would like to thank the Arts and Humanities Research Council (AHRC) for funding the collaborative LEBIOTEX Project (AH/J002666/1) between De Montfort University and Loughborough University, in addition to the support from the industrial partner Camira Fabrics. The authors would also like to thank Novozymes for supplying the enzyme used in this study.
Published inColoration Technology
Pages423 - 439
CitationPRAJAPATI, C.D. ... et al, 2018. Laccase-catalysed coloration of wool and nylon. Coloration Technology, 134 (6), pp.423-439.
PublisherJohn Wiley & Sons Ltd on behalf of Society of Dyers and Colourists © The Authors.
- VoR (Version of Record)
Publisher statementThis work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/
NotesThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.