Formation of filaments, threads, or the like

DTEXTILES PAPER D01Threads, fibers D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS

D01D5/00Formation of filaments, threads, or the like

D01D5/0007Electro-spinning D01D5/0015characterised by the initial state of the material D01D5/0023the material being a polymer melt D01D5/003the material being a polymer solution or dispersion D01D5/0038the fibre formed by solvent evaporation D01D5/0046the fibre formed by coagulation D01D5/0053the material being a low molecular weight compound or an oligomer, and the fibres being formed by self-assembly D01D5/0061characterised by the electro-spinning apparatus D01D5/0069characterised by the spinning section D01D5/0076characterised by the collecting device D01D5/0084Coating by electro-spinning, i.e. the electro-spun fibres are not removed from the collecting device but remain integral with it D01D5/0092characterised by the electrical field D01D5/02Starting the formation D01D5/04Dry spinning methods D01D5/06Wet spinning methods D01D5/08Melt spinning methods D01D5/082of mixed yarn D01D5/084Heating filaments, threads or the like, leaving the spinnerettes D01D5/088Cooling filaments, threads or the like, leaving the spinnerettes D01D5/0885by means of a liquid D01D5/092in shafts or chimneys D01D5/096Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes D01D5/098with simultaneous stretching D01D5/0985by means of a flowing gas ( D01D5/10using organic materials D01D5/11Flash-spinning D01D5/12Stretch-spinning methods D01D5/14with flowing liquid or gaseous stretching media D01D5/16using rollers, or like mechanical devices D01D5/18by means of rotating spinnerets D01D5/20with varying denier along their length D01D5/22with a crimped or curled structure with a special structure to simulate wool D01D5/23by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes D01D5/24with a hollow structure Spinnerette packs therefor D01D5/247Discontinuous hollow structure or microporous structure D01D5/253with a non-circular cross section Spinnerette packs therefor D01D5/26Formation of staple fibres D01D5/28while mixing different spinning solutions or melts during the spinning operation Spinnerette packs therefor D01D5/30Conjugate filaments Spinnerette packs therefor D01D5/32Side-by-side structure Spinnerette packs therefor D01D5/34Core-skin structure Spinnerette packs therefor D01D5/36Matrix structure Spinnerette packs therefor D01D5/38Formation of filaments, threads, or the like during polymerisation D01D5/40by applying a shearing force to a dispersion or solution of filament formable polymers D01D5/42by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments D01D5/423by fibrillation of films or filaments D01D5/426by cutting films