Bioblasting enzymes keep uniforms “cleaner”
26/11/2012
The Stay New technology weakens and removes protruding fibre ends that stick up from the fabric. This keeps the surface smooth, reduces pilling and ensures consistently bright colours, according to Novozymes.
Han Kuilderd, customer solutions manager at Novozymes, has worked closely with Marks & Spencer on the development of the technology. “By using enzymes in textile production Marks & Spencer could create higher quality garments in a more sustainable way. In the schoolwear market, where competition is fierce, this is crucial," he said.
The process can combine the bleach clean-up and dyeing stages, which reduces energy and water consumption compared with a non-combined process. It can also save up to 90 minutes processing time when compared with running the processes before or after dyeing, according to the company.
Novozymes enzymatic solutions are biodegradable, natural proteins that act as catalysts for biochemical and chemical reactions. They require a low dosage and do not contribute greatly to effluent loads.
The bioblasting process takes place at pH5-7 and at 50-60°C. The combination of enzymes and mechanical abrasion from a washing or jet dyeing machine creates a permanent change to the fabric without the use of chemical coatings or the application of gases and fire.
"We're seeing an increase in bioblasting in textile production as it offers better quality products to consumers, a reduced environmental impact for retailers and more efficient work processes for textile producers,” added Mr Kuilderd.
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