In these setups, polymer pellets or powders are melted and extruded through a spinneret to form filaments, which are then solidified by quenching and further processed by winding and drawing. Several spinning techniques are used in the production of man-made fibre, including solution spinning (wet or dry), melt spinning, gel spinning (a variant on solution spinning), and emulsion spinning (another variation of solution spinning). One of the oldest methods for the preparation of man-made. Leather is a fibrous material constructed as a three-dimensional network of interlacing fibers in a way that cannot be duplicated by man-made products. Its composition gives it exceptionally useful and desirable qualities such as flexibility, adaptability to change, the ability to breathe, and. Melt spinning is the simplest extrusion process in that no addition and subsequent removal of solvent is required. It is the most popular and economic method for polymer fiber manufacturing at industrial scales. To accomplish this they are dissolved in a solvent or melted.