IPC Classification

Class code (prefix) Descriptions Number of results
D01D 1/00 Treatment of filament-forming or like material
D01D 1/02 Preparation of spinning solutions
D01D 1/04 Melting filament-forming substances
D01D 1/06 Feeding liquid to the spinning head
D01D 1/09 Control of pressure, temperature or feeding rate
D01D 1/10 Filtering or de-aerating the spinning solution or melt
D01D 4/00 Spinnerette packs; Cleaning thereof
D01D 4/02 Spinnerettes
D01D 4/04 Cleaning spinnerettes or other parts of the spinnerette packs
D01D 4/06 Distributing spinning solution or melt to spinning nozzles
D01D 4/08 Supporting spinnerettes or other parts of spinnerette packs
D01D 5/00 Formation of filaments, threads, or the like
D01D 5/02 Starting the formation
D01D 5/04 Dry spinning methods
D01D 5/06 Wet spinning methods
D01D 5/08 Melt-spinning methods
D01D 5/10 Melt-spinning methods using organic materials
D01D 5/11 Flash-spinning
D01D 5/12 Stretch-spinning methods
D01D 5/14 Stretch-spinning methods with flowing liquid stretching media
D01D 5/16 Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
D01D 5/18 Formation of filaments, threads, or the like by means of rotating spinnerets
D01D 5/20 Formation of filaments, threads, or the like with varying denier along their length
D01D 5/22 Formation of filaments, threads, or the like with a special structure to simulate wool
D01D 5/23 Formation of filaments, threads, or the like with a special structure to simulate wool by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes
D01D 5/24 Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
D01D 5/26 Formation of staple fibres
D01D 5/28 Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
D01D 5/30 Conjugate filaments; Spinnerette packs therefor
D01D 5/32 Side-by-side structure; Spinnerette packs therefor
D01D 5/34 Core-skin structure; Spinnerette packs therefor
D01D 5/36 Matrix structure; Spinnerette packs therefor
D01D 5/38 Formation of filaments, threads, or the like during polymerisation
D01D 5/40 Formation of filaments, threads, or the like by applying a shearing force to a dispersion or solution of filament formable polymers, e.g. by stirring
D01D 5/42 Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films
D01D 5/084 Heating filaments, threads or the like, leaving the spinnerettes
D01D 5/088 Cooling filaments, threads or the like, leaving the spinnerettes
D01D 5/092 Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
D01D 5/096 Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
D01D 5/098 Melt-spinning methods with simultaneous stretching
D01D 5/247 Discontinuous hollow structure or microporous structure
D01D 5/253 Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
D01D 7/00 Collecting the newly-spun products
D01D 7/02 Collecting the newly-spun products in centrifugal spinning pots
D01D 10/00 Physical treatment of man-made filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
D01D 10/02 Heat treatment
D01D 10/04 Supporting filaments or the like during their treatment
D01D 10/06 Washing or drying
D01D 11/00 Other features of manufacture
D01D 11/02 Opening bundles to space the threads or filaments from one another
D01D 11/04 Fixed guides
D01D 11/06 Coating with spinning solutions or melts
D01D 13/00 Complete machines for producing man-made threads
D01D 13/02 Elements of machines in combination