D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONSAttention is drawn to the note following the title of Class D01.Apparatus specially adapted for the manufacture of carbon filaments are classified in group D01F9/12In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme. D01D1/00 D01D1/00Treatment of filament-forming or like material working of plastics or substances in a plastic state, in general B29 D01D1/02Preparation of spinning solutions D01D1/04Melting filament-forming substances D01D1/06Feeding liquid to the spinning head constructions of pumps F04 D01D1/065Addition and mixing of substances to the spinning solution or to the melt; Homogenising D01D1/09Control of pressure, temperature or feeding rate D01D1/10Filtering or de-aerating the spinning solution or melt D01D1/103De-aerating D01D1/106Filtering D01D4/00Spinnerette packsCleaning thereof D01D5/0069, D01D5/24, D01D5/253, D01D5/28 take precedence D01D4/02Spinnerettes alloys therefor C22C D01D4/022Processes or materials for the preparation of spinnerettes D01D4/025Melt-blowing or solution-blowing dies D01D4/027Spinnerettes containing inserts D01D4/04Cleaning spinnerettes or other parts of the spinnerette packs cleaning in general B08B D01D4/06Distributing spinning solution or melt to spinning nozzles D01D4/08Supporting spinnerettes or other parts of spinnerette packs D01D5/00Formation of filaments, threads, or the like D01D5/0007Electro-spinning non-woven fabrics produced by electro-spinning D04H1/728 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 D01D5/0053 takes precedence D01D5/0038the fibre formed by solvent evaporation, i.e. dry electro-spinning D01D5/0046the fibre formed by coagulation, i.e. wet electro-spinning 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, e.g. capillary tube, protrusion or pin D01D5/0076characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid D01D5/0046 takes precedence D01D5/0084Coating by electro-spinning, i.e. the electro-spun fibres are not removed from the collecting device but remain integral with it, e.g. coating of prostheses D01D5/0092characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields D01D5/02Starting the formation D01D5/04Dry spinning methods D01D5/0038 takes precedence D01D5/06Wet spinning methods D01D5/0046 takes precedence D01D5/08Melt spinning methods D01D5/0023 takes precedence 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 (e.g. melt-blowing) D01D5/10using organic materialsThis group is no longer used for the classification of new documents as from July 2011. The backlog of this group is being continuously reclassified to D01D5/08 and its subgroups D01D5/11Flash-spinning D01D5/12Stretch-spinning methods D01D5/098 takes precedence finishing by stretching D02J1/22 D01D5/14with flowing liquid or gaseous stretching media , e.g. solution-blowing D01D5/16using rollers, or like mechanical devices, e.g. snubbing pins D01D5/18by means of rotating spinnerets D01D5/20with varying denier along their length D01D5/22with a crimped or curled structurewith a special structure to simulate wool producing crimped or curled effects in filaments or threads after formation D02G1/00 D01D5/23by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes D01D5/24with a hollow structureSpinnerette packs therefor D01D5/38 takes precedence; producing tubes of plastic material B29D; addition of agents forming hollow filaments D01F1/08 D01D5/247Discontinuous hollow structure or microporous structure D01D5/253with a non-circular cross sectionSpinnerette packs therefor D01D5/38 takes precedence D01D5/26Formation of staple fibres by flash-spinning D01D5/11 D01D5/28while mixing different spinning solutions or melts during the spinning operationSpinnerette packs therefor D01D5/30Conjugate filamentsSpinnerette packs therefor D01D5/32Side-by-side structureSpinnerette packs therefor D01D5/34Core-skin structureSpinnerette packs therefor D01D5/36Matrix structureSpinnerette 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, e.g. by stirring 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 D01D7/00Collecting the newly-spun products D01D5/0076 takes precedence; collecting newly-spun products with the imparting of twist D01H D01D7/02in centrifugal spinning pots D01D10/00Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected finishing D02J D01D10/02Heat treatment heating for finishing D02J13/00 D01D10/04Supporting filaments or the like during their treatment D01D10/0409on bobbins D01D10/0418as cakes or similar coreless thread packages D01D10/0427as hanks D01D10/0436while in continuous movement forwarding filamentary material B65H51/00 D01D10/0445using rollers with mutually inclined axes D01D10/0454using reels D01D10/0463the filaments being maintained parallel D01D10/0472the filaments being supported on endless bands D01D10/0481the filaments passing through a tube D01D10/049as staple fibres D01D10/06Washing or drying D01D11/00Other features of manufacture D01D11/02Opening bundles to space the threads or filaments from one another D01D11/04Fixed guides D01D11/06Coating with spinning solutions or melts D01D13/00Complete machines for producing artificial threads D01D13/02Elements of machines in combination