EP 0346641 B1 19940824 - Process for the production of uniform POY filaments.
Title (en)
Process for the production of uniform POY filaments.
Title (de)
Verfahren zur Herstellung gleichmässiger POY-Filamente.
Title (fr)
Procédé pour la production de filaments POY réguliers.
Publication
Application
Priority
DE 3819913 A 19880611
Abstract (en)
[origin: EP0346641A2] Melt-spinning process for the production of preoriented low-crystallinity synthetic filaments characterised by a high uniformity and a possibility of being processed at high speeds in a friction-drafting texturing process, the damping ratio of the spinning yarn between the cooling point and the winding apparatus being less than 0.10 and being defined as a ratio of the range of fluctuation of the yarn tension at the beginning of the yarn draft as described to that at the end of this yarn draft, and the galette system used being a driven galette with a free-running tracer roller with multiple looping.
IPC 1-7
IPC 8 full level
D01D 5/098 (2006.01); D01D 5/16 (2006.01); D01F 6/62 (2006.01)
CPC (source: EP US)
D01D 5/098 (2013.01 - EP US); D01D 5/16 (2013.01 - EP US); D01F 6/62 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
EP 0346641 A2 19891220; EP 0346641 A3 19910123; EP 0346641 B1 19940824; DE 3819913 A1 19891221; DE 58908222 D1 19940929; ES 2058384 T3 19941101; US 4940559 A 19900710
DOCDB simple family (application)
EP 89109056 A 19890519; DE 3819913 A 19880611; DE 58908222 T 19890519; ES 89109056 T 19890519; US 28163688 A 19881209