<titlePart> <text>SECTION D <emdash/> TEXTILES</text> </titlePart> <titlePart> <text>PAPER</text> </titlePart> <titlePart> <text>TEXTILES OR FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR</text> </titlePart> <titlePart> <text>NATURAL OR ARTIFICIAL THREADS OR FIBRES</text> </titlePart> <titlePart> <text>SPINNING</text> <entryReference>metal threads <sref ref="B21"/></entryReference> <entryReference>fibres or filaments of softened glass, minerals, or slag <sref ref="C03B0037000000"/></entryReference> <entryReference>yarns <sref ref="D02"/></entryReference> </titlePart> In this class, the following terms are used with the meanings indicated: "fibre" means a relatively-short, elongated member of natural or artificial material; "filament" means an endless or quasi-endless, elongated member of natural or artificial material; "yarn" means a unitary assembly of fibres, usually produced by spinning; "thread" means an assembly of yarns or filaments, usually produced by twisting. <titlePart> <text>MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS</text> </titlePart> Attention is drawn to the Note following the title of class . Apparatus specially adapted for the manufacture of carbon filaments are classified in group . MECHANICAL TREATMENT OF FILAMENT-FORMING MATERIAL PRODUCTION OF ARTIFICIAL FIBRES Methods Spinnerette packs; formation of filaments; collecting the newly-spun products ; ; Physical treatment during manufacture Other operations COMPLETE MACHINES; DETAILS ; , , <titlePart> <text>Treatment of filament-forming or like material</text> <entryReference>working of plastics or substances in a plastic state, in general <sref ref="B29"/></entryReference> </titlePart> <titlePart> <text>Preparation of spinning solutions</text> </titlePart> <titlePart> <text>Melting filament-forming substances</text> </titlePart> <titlePart> <text>Feeding liquid to the spinning head</text> <entryReference>constructions of pumps <sref ref="F04"/></entryReference> </titlePart> <titlePart> <text>Pressure, temperature or feeding rate regulation</text> </titlePart> <titlePart> <text>Filtering or de-aerating the spinning solution or melt</text> </titlePart> <titlePart> <text>Spinnerette packs</text> </titlePart> <titlePart> <text>Cleaning thereof</text> <entryReference><sref ref="D01D0005240000"/>, <sref ref="D01D0005253000"/>, <sref ref="D01D0005280000"/> take precedence</entryReference> </titlePart> <titlePart> <text>Spinnerettes</text> <entryReference>alloys therefor <sref ref="C22C"/></entryReference> </titlePart> <titlePart> <text>Cleaning spinnerettes or other parts of the spinnerette packs</text> <entryReference>cleaning in general <sref ref="B08B"/></entryReference> </titlePart> <titlePart> <text>Distributing spinning solution or melt to spinning nozzles</text> </titlePart> <titlePart> <text>Supporting spinnerettes or other parts of spinnerette packs</text> </titlePart> <titlePart> <text>Formation of filaments, threads, or the like</text> </titlePart> <titlePart> <text>Starting the formation</text> </titlePart> <titlePart> <text>Dry spinning methods</text> </titlePart> <titlePart> <text>Wet spinning methods</text> </titlePart> <titlePart> <text>Melt-spinning methods</text> </titlePart> <titlePart> <text>Heating filaments, threads or the like, leaving the spinnerettes</text> </titlePart> <titlePart> <text>Cooling filaments, threads or the like, leaving the spinnerettes</text> </titlePart> <titlePart> <text>in shafts or chimneys</text> </titlePart> <titlePart> <text>Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes</text> </titlePart> <titlePart> <text>with simultaneous stretching</text> </titlePart> <titlePart> <text>using organic materials</text> </titlePart> <titlePart> <text>Flash-spinning</text> </titlePart> <titlePart> <text>Stretch-spinning methods</text> <entryReference>finishing by stretching <sref ref="D02J0001220000"/></entryReference> </titlePart> <titlePart> <text>with flowing liquid stretching media</text> </titlePart> <titlePart> <text>using rollers, or like mechanical devices, e.g. snubbing pins</text> </titlePart> <titlePart> <text>by means of rotating spinnerets</text> </titlePart> <titlePart> <text>with varying denier along their length</text> </titlePart> <titlePart> <text>with a crimped or curled structure</text> </titlePart> <titlePart> <text>with a special structure to simulate wool</text> <entryReference>producing crimped or curled effects in filaments or threads after formation <sref ref="D02G0001000000"/></entryReference> </titlePart> <titlePart> <text>by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes</text> </titlePart> <titlePart> <text>with a hollow structure</text> </titlePart> <titlePart> <text>Spinnerette packs therefor</text> <entryReference><sref ref="D01D0005380000"/> takes precedence</entryReference> <entryReference>producing tubes of plastic material <sref ref="B29D"/></entryReference> <entryReference>addition of agents forming hollow filaments <sref ref="D01F0001080000"/></entryReference> </titlePart> <titlePart> <text>Discontinuous hollow structure or microporous structure</text> </titlePart> <titlePart> <text>with a non-circular cross section</text> </titlePart> <titlePart> <text>Spinnerette packs therefor</text> <entryReference><sref ref="D01D0005380000"/> takes precedence</entryReference> </titlePart> <titlePart> <text>Formation of staple fibres</text> <entryReference>by flash-spinning <sref ref="D01D0005110000"/></entryReference> </titlePart> <titlePart> <text>while mixing different spinning solutions or melts during the spinning operation</text> </titlePart> <titlePart> <text>Spinnerette packs therefor</text> </titlePart> <titlePart> <text>Conjugate filaments</text> </titlePart> <titlePart> <text>Spinnerette packs therefor</text> </titlePart> <titlePart> <text>Side-by-side structure</text> </titlePart> <titlePart> <text>Spinnerette packs therefor</text> </titlePart> <titlePart> <text>Core-skin structure</text> </titlePart> <titlePart> <text>Spinnerette packs therefor</text> </titlePart> <titlePart> <text>Matrix structure</text> </titlePart> <titlePart> <text>Spinnerette packs therefor</text> </titlePart> <titlePart> <text>Formation of filaments, threads, or the like during polymerisation</text> </titlePart> <titlePart> <text>by applying a shearing force to a dispersion or solution of filament formable polymers, e.g. by stirring</text> </titlePart> <titlePart> <text>by cutting films into narrow ribbons or filaments or by fibrillation of films</text> </titlePart> <titlePart> <text>Collecting the newly-spun products</text> <entryReference>collecting newly-spun products with the imparting of twist <sref ref="D01H"/></entryReference> </titlePart> <titlePart> <text>in centrifugal spinning pots</text> </titlePart> <titlePart> <text>Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected</text> <entryReference>finishing <sref ref="D02J"/></entryReference> </titlePart> <titlePart> <text>Heat treatment</text> <entryReference>heating for finishing <sref ref="D02J0013000000"/></entryReference> </titlePart> <titlePart> <text>Supporting filaments or the like during their treatment</text> </titlePart> <titlePart> <text>Washing or drying</text> </titlePart> <titlePart> <text>Other features of manufacture</text> </titlePart> <titlePart> <text>Opening bundles to space the threads or filaments from one another</text> </titlePart> <titlePart> <text>Fixed guides</text> </titlePart> <titlePart> <text>Coating with spinning solutions or melts</text> </titlePart> <titlePart> <text>Complete machines for producing artificial threads</text> </titlePart> <titlePart> <text>Elements of machines in combination</text> </titlePart>