Chapter headings. Introduction. Historical background. Nonconventional formation methods. Polymer as Raw Material. Structure and character. Polymer crystals. Rheology. Introductory definitions. Excitations and responses. Polymer in Fiber Formation. Melting of polymer. The spinnerette. Structure of Fibers. Spun fibers. Cold drawing. Engineering Physics. Flow of cooling media. Heat exchange. Formation from Solution. Principles. Diffusion in fiber formation. Process Variables. Theoretical variables. Technological variables. Scale Change of a Process. Changing the number of filaments. "Scaling by equivalence". Fiber Properties. Properties dependent on the polymer. Influence of processing on properties. Processes of "Spunbond". Spunbond formation from melt. Thermal bonding. Special Techniques. Fibers with noncircular cross sections. Crimping-bulking-interlacing. Appendix A: Numeric Data. Data on air. Data on mass transfer.