06149847 is referenced by 1 patents and cites 4 patents.

Polyester yarn is made by melt spinning the polyester filaments which are then cooled at least to solidification and heated by counterflow with prestretching to a crystallinity in excess of 24%. The prestretched filaments are gathered and stretched to after-stretching at a temperature of 80.degree. C. to 250.degree. C. to a final titer of 1.0 dtex to 7.5 dtex with a stretching ratio of 1:1.5 to 1:1.15. The yarn is then wound up at a rate of 5000 to 8000 m/min.

Title
Method of and apparatus for the production of polyester yarn
Application Number
9/285435
Publication Number
6149847
Application Date
April 2, 1999
Publication Date
November 21, 2000
Inventor
Jurgen Hartig
Gladbeck
DE
Ingo Efflander
Essen
DE
Rudolf Geier
Essen
DE
Agent
Herbert Dubno
Assignee
Krupp Uhde
DE
IPC
D01F 6/62
D01D 5/16
D01D 5/088
D01D 5/084
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