Fiber Crimp Distribution in Nonwoven Structure

The crimp of the text ile fibers is very crit ical to determine its properties and volumin isity. The microscopic characteristic of the nonwoven fabric is totally depends on the linearity and length of the crimp and the amp litude of the crimp. In this review paper we have discussed about the crimp calculat ion, measurement techniques and the standards used for the text ile nonwoven substrates. The crimp frequency (orientation distribution function; ODF) wh ich is being measured by Textechno FA VIMAT instrument and by modern image processing techniques is also been discussed here.