Abstract
Textile processing is a growing industry that traditionally has used a lot of water, energy and harsh chemicals. Conventional chemical processes are generally severe and fibre damage may occur. Enzymes are characterized by their ability to operate under mild conditions and as a result processes can be carried out without further damaging the fibers. Enzymes are also readily biodegradable and therefore potentially harmless and environmentally friendly. Furthermore, the use of enzymes results in reduced process times, energy and water savings, improved product quality. This work represents a review of current research and future directions on the applications of enzymatic treatments for cotton. The enzymes used in the textile field are amylases for desizing of cotton and cellulases for denim finishing and biopolishing. The application of cellulases for denim finishing and laccases for decolourization of textile effluents and textile bleaching are the most recent commercial advances.
Highlights
Enzymes are biocatalysts with selective and specific activity, accelerating distinct reactions and remaining unchanged after the reaction
Biotechnology offers a wide range of alternative environmentally-friendly processes for the textile industry to complement or improve the conventional technologies
The use of various enzyme is in the early stages of development but their innovative applications are increasing and spreading rapidly into all areas of textile processing
Summary
Enzymes are biocatalysts with selective and specific activity, accelerating distinct reactions and remaining unchanged after the reaction. Enzymes are becoming increasingly important in sustainable technology and green chemistry This has led to the tremendous interest among textile research community to explore exciting opportunities in industrial biotechnology which can offer new and transformative alternatives to conventional textile processing methods [1]. Biopolishing is an important finishing treatment carried out on cellulosic fabrics using acid cellulases to achieve improvement in gloss, luminosity of colours and resistance to pilling, cooler feel and clear surface [5]. Biopolishing is an important finishing treatment carried out on cellulosic fabrics using acid cellulases to achieve improvement in gloss, luminosity of colors and resistance to pilling, cooler feel and clear surface Biopolishing of cotton fabrics carried out, either before or after the dyeing process, has an influential role on dyeability of the fabrics [6]. This paper discusses these aspects and surveys recent developments in the field of enzyme treatments for cotton
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