D01D1/00	7	Treatment of filament-forming or like material (working of plastics or substances in a plastic state, in general B29)	D01D1/00	D01D1/00		610
D01D1/02	8	Preparation of spinning solutions	D01D1/02	D01D1/02		2034
D01D1/04	8	Melting filament-forming substances	D01D1/04	D01D1/04		969
D01D1/06	8	Feeding liquid to the spinning head (constructions of pumps F04)	D01D1/06	D01D1/06		673
D01D1/065	9	{Addition and mixing of substances to the spinning solution or to the melt; Homogenising}	D01D1/06	D01D1/06		900
D01D1/09	9	Control of pressure, temperature or feeding rate	D01D1/09	D01D1/09		749
D01D1/10	8	Filtering or de-aerating the spinning solution or melt	D01D1/10	D01D1/10		89
D01D1/103	9	{De-aerating}	D01D1/10	D01D1/10		346
D01D1/106	9	{Filtering}	D01D1/10	D01D1/10		901
D01D4/00	7	Spinnerette packs; Cleaning thereof ({D01D5/0069}, D01D5/24, D01D5/253, D01D5/28 take precedence)	D01D4/00	D01D4/00		534
D01D4/02	8	Spinnerettes (alloys therefor C22C)	D01D4/02	D01D4/02		1468
D01D4/022	9	{Processes or materials for the preparation of spinnerettes}	D01D4/02	D01D4/02		327
D01D4/025	9	{Melt-blowing or solution-blowing dies}	D01D4/02	D01D4/02		403
D01D4/027	9	{Spinnerettes containing inserts}	D01D4/02	D01D4/02		101
D01D4/04	8	Cleaning spinnerettes or other parts of the spinnerette packs (cleaning in general B08B)	D01D4/04	D01D4/04		464
D01D4/06	8	Distributing spinning solution or melt to spinning nozzles	D01D4/06	D01D4/06		407
D01D4/08	8	Supporting spinnerettes or other parts of spinnerette packs	D01D4/08	D01D4/08		200
D01D5/00	7	Formation of filaments, threads, or the like	D01D5/00	D01D5/00		966
D01D5/0007	8	{Electro-spinning (non-woven fabrics produced by electro-spinning D04H1/728)}	D01D5/00	D01D5/00		981
D01D5/0015	9	{characterised by the initial state of the material}	D01D5/00	D01D5/00		985
D01D5/0023	10	{the material being a polymer melt}	D01D5/00	D01D5/00		274
D01D5/003	10	{the material being a polymer solution or dispersion (D01D5/0053 takes precedence)}	D01D5/00	D01D5/00		3714
D01D5/0038	11	{the fibre formed by solvent evaporation, i.e. dry electro-spinning}	D01D5/00	D01D5/00		723
D01D5/0046	11	{the fibre formed by coagulation, i.e. wet electro-spinning}	D01D5/00	D01D5/00		176
D01D5/0053	10	{the material being a low molecular weight compound or an oligomer, and the fibres being formed by self-assembly}	D01D5/00	D01D5/00		29
D01D5/0061	9	{characterised by the electro-spinning apparatus}	D01D5/00	D01D5/00		1630
D01D5/0069	10	{characterised by the spinning section, e.g. capillary tube, protrusion or pin}	D01D5/00	D01D5/00		2034
D01D5/0076	10	{characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid (D01D5/0046 takes precedence)}	D01D5/00	D01D5/00		1545
D01D5/0084	11	{Coating 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}	D01D5/00	D01D5/00		827
D01D5/0092	10	{characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields}	D01D5/00	D01D5/00		1611
D01D5/02	8	Starting the formation	D01D5/02	D01D5/02		70
D01D5/04	8	Dry spinning methods {(D01D5/0038 takes precedence)}	D01D5/04	D01D5/04		1237
D01D5/06	8	Wet spinning methods {(D01D5/0046 takes precedence)}	D01D5/06	D01D5/06		3688
D01D5/08	8	Melt spinning methods {(D01D5/0023 takes precedence)}	D01D5/08	D01D5/08		4297
D01D5/082	9	{of mixed yarn}	D01D5/08	D01D5/08		283
D01D5/084	9	Heating filaments, threads or the like, leaving the spinnerettes	D01D5/084	D01D5/084		507
D01D5/088	9	Cooling filaments, threads or the like, leaving the spinnerettes	D01D5/088	D01D5/088		2251
D01D5/0885	10	{by means of a liquid}	D01D5/088	D01D5/088		361
D01D5/092	10	in shafts or chimneys	D01D5/092	D01D5/092		861
D01D5/096	9	Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes	D01D5/096	D01D5/096		1126
D01D5/098	9	with simultaneous stretching	D01D5/098	D01D5/098		1615
D01D5/0985	10	{by means of a flowing gas (e.g. melt-blowing)}	D01D5/098	D01D5/098		1277
D01D5/10	9	using organic materials<br><br><u>WARNING</u><br>This 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	D01D5/10	D01D5/10		57
D01D5/11	8	Flash-spinning	D01D5/11	D01D5/11		406
D01D5/12	8	Stretch-spinning methods ({D01D5/098 takes precedence} finishing by stretching D02J1/22)	D01D5/12	D01D5/12		1297
D01D5/14	9	with flowing liquid {or gaseous} stretching media {, e.g. solution-blowing}	D01D5/14	D01D5/14		945
D01D5/16	9	using rollers, or like mechanical devices, e.g. snubbing pins	D01D5/16	D01D5/16		1352
D01D5/18	8	by means of rotating spinnerets	D01D5/18	D01D5/18		775
D01D5/20	8	with varying denier along their length	D01D5/20	D01D5/20		445
D01D5/22	8	with a crimped or curled structure; with a special structure to simulate wool (producing crimped or curled effects in filaments or threads after formation D02G1/00)	D01D5/22	D01D5/22		905
D01D5/23	9	by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes	D01D5/23	D01D5/23		152
D01D5/24	8	with a hollow structure; Spinnerette packs therefor (D01D5/38 takes precedence; producing tubes of plastic material B29D; addition of agents forming hollow filaments D01F1/08)	D01D5/24	D01D5/24		2054
D01D5/247	9	Discontinuous hollow structure or microporous structure	D01D5/247	D01D5/247		772
D01D5/253	8	with a non-circular cross section; Spinnerette packs therefor (D01D5/38 takes precedence)	D01D5/253	D01D5/253		2913
D01D5/26	8	Formation of staple fibres (by flash-spinning D01D5/11)	D01D5/26	D01D5/26		244
D01D5/28	8	while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor	D01D5/28	D01D5/28		323
D01D5/30	9	Conjugate filaments; Spinnerette packs therefor	D01D5/30	D01D5/30		1327
D01D5/32	10	Side-by-side structure; Spinnerette packs therefor	D01D5/32	D01D5/32		882
D01D5/34	10	Core-skin structure; Spinnerette packs therefor	D01D5/34	D01D5/34		3233
D01D5/36	10	Matrix structure; Spinnerette packs therefor	D01D5/36	D01D5/36		309
D01D5/38	8	Formation of filaments, threads, or the like during polymerisation	D01D5/38	D01D5/38		169
D01D5/40	8	by applying a shearing force to a dispersion or solution of filament formable polymers, e.g. by stirring	D01D5/40	D01D5/40		261
D01D5/42	8	by cutting films into narrow ribbons or filaments or by fibrillation of films {or filaments}	D01D5/42	D01D5/42		300
D01D5/423	9	{by fibrillation of films or filaments}	D01D5/42	D01D5/42		664
D01D5/426	9	{by cutting films}	D01D5/42	D01D5/42		513
D01D7/00	7	Collecting the newly-spun products ({D01D5/0076 takes precedence;} collecting newly-spun products with the imparting of twist D01H)	D01D7/00	D01D7/00		1151
D01D7/02	8	in centrifugal spinning pots	D01D7/02	D01D7/02		680
D01D10/00	7	Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected (finishing D02J)	D01D10/00	D01D10/00		484
D01D10/02	8	Heat treatment (heating for finishing D02J13/00)	D01D10/02	D01D10/02		2835
D01D10/04	8	Supporting filaments or the like during their treatment	D01D10/04	D01D10/04		74
D01D10/0409	9	{on bobbins}	D01D10/04	D01D10/04		361
D01D10/0418	9	{as cakes or similar coreless thread packages}	D01D10/04	D01D10/04		428
D01D10/0427	9	{as hanks}	D01D10/04	D01D10/04		82
D01D10/0436	9	{while in continuous movement (forwarding filamentary material B65H51/00)}	D01D10/04	D01D10/04		564
D01D10/0445	10	{using rollers with mutually inclined axes}	D01D10/04	D01D10/04		264
D01D10/0454	10	{using reels}	D01D10/04	D01D10/04		432
D01D10/0463	10	{the filaments being maintained parallel}	D01D10/04	D01D10/04		159
D01D10/0472	10	{the filaments being supported on endless bands}	D01D10/04	D01D10/04		114
D01D10/0481	10	{the filaments passing through a tube}	D01D10/04	D01D10/04		340
D01D10/049	9	{as staple fibres}	D01D10/04	D01D10/04		124
D01D10/06	8	Washing or drying	D01D10/06	D01D10/06		1469
D01D11/00	7	Other features of manufacture	D01D11/00	D01D11/00		416
D01D11/02	8	Opening bundles to space the threads or filaments from one another	D01D11/02	D01D11/02		241
D01D11/04	8	Fixed guides	D01D11/04	D01D11/04		273
D01D11/06	8	Coating with spinning solutions or melts	D01D11/06	D01D11/06		282
D01D13/00	7	Complete machines for producing artificial threads	D01D13/00	D01D13/00		1099
D01D13/02	8	Elements of machines in combination	D01D13/02	D01D13/02		1226
