ABSTRACT
Textile industry is based on the use of fibers—typical materials whose length is very important in comparison to their thickness. The morphological property is the aim of the mechanical behavior of fibers and their ability to be transformed in supple and soft structures and products. The amorphous and crystalline aspects of the fibrous structure are the result of the conjunction of the basic properties of the polymeric material and the drawing effect during the spinning of the fiber. There are different ways to obtain a fibrous structure with staple fibers. Yarns are single bundles of staple fibers, obtained by ring or rotor processes show parallel fibers, oriented with an angle relative to the yarn axis. The intertwining is systematically achieved at each contact point for plain woven fabrics. The fiber mat created on the fabric surface during the raising operation covers the fabric structure, therefore the probe has a very small contact with the ground elements of the surface.
