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Dyeing Printing & Finishing

Novozymes Reports Benefits Of Enzymatic Processing

A life cycle assessment (LCA) conducted recently by Novozymes A/S, Denmark, shows that the use of enzymes in textile processing can reduce water and energy consumption, carbon dioxide (CO2) emissions and processing time.

Possible savings per ton of knitted fabric include up to 70,000 liters of water and 1 ton of CO2, as well as a 20- to 25-percent reduction in processing time. Textile and apparel maker Esquel Group, Hong Kong, has conducted several trials in which Novozymes solutions were applied at different production stages and reports that the use of Novozymes enzymatic solution in place of conventional technology enabled it to save 30 cubic meters of water per ton of knitted fabric just in the bleaching process.

Novozymes notes that with the use of enzymes, water consumption is reduced because processes can be combined, effluent toxicity is reduced, and fewer rinses are required after one process than when traditional chemicals are used. The enzymes degrade quickly into harmless compounds; and smaller amounts are required for textile processing compared to conventional chemical requirements. In addition, water and effluent treatment costs are reduced.

May/June 2011