engleski

The impact of enzymes on coarse wool felting

Depending upon the end-use, feltability is, in a higher of lower degree, a positive property of wool. However, unintentional and unwished for interlacing of fibres (felting) occurs in raw wool scouring, which makes further processing more complicated. As the appearance of the fibre cuticula, among other factors, impacts feltability, interventions on the level of morphology (for example, applying enzyme treatments) makes control of feltability possible. The investigations described here deal with the impact of enzyme scouring on the appearance of coarse wool fibres, as well as on their feltability, which according to the system of coarse wool objective measurements is considered to be one of the relevant indicators of its quality. Since the density of wool balls (obtained through the Achen method of determining the degree of felting) is within between 0.049 and 0.066 gcm-3, the felt obtained can be classified as soft one. Scoured wool felting is at its lowest if 3.5% of the enzyme complex Bactosol WO is added into the scouring bath, together with the scouring agent.

wool; coarse wool; wool quality; feltability; enzyme scouring

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