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BIOFELT Résumé de rapport

Project ID: G1ST-CT-2002-50310
Financé au titre de: FP5-GROWTH
Pays: Belgium

2 different enzymes or enzyme combinations selected for improving dyeability, 1 enzyme identified for removal of spinning additives and remaining fats, 1 enzyme for wool felting

Enzymes to be used in the finishing of prefelts or the felting process itself were screened and characterised.

Commercially available and experimental enzymes were selected. The enzymes selected for felting were transglutaminases, laccases, peroxidases, proteases. Different types of enzymes acting on remaining spinning additives (oils) and wool fats, i.e. lipases were also selected. The enzyme activities and optimal working conditions were determined. To determine the mode of catalytic action of the laccase on the spinning oil also advanced analytical techniques, such GC/MS were used.

The potential of different structure modifying and potentially cross-linking enzymes (e.g. transglutaminase, laccase, peroxidase) was evaluated on wool felting. A basic optimization of the treatment conditions like amount of enzymes, temperature, pH, mechanical agitation, time, additives, amount of felting steps was carried out. The degree of felting was evaluated. The pilot-scale felting processes were established based on lab-scale trials by the SME partners. The final product quality was compared to conventionally processed felt products.


Dominique GODIN
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