EP 0041820 B1 19840704 - PROCESS FOR PRODUCTION OF SELF-CRIMPING POLYESTER YARN
Title (en)
PROCESS FOR PRODUCTION OF SELF-CRIMPING POLYESTER YARN
Publication
Application
Priority
US 15713080 A 19800606
Abstract (en)
[origin: EP0041820A1] Polyester polymer is extruded at different speeds through parallel closely spaced orifices (20, 22) at relatively high spinning speeds. The resulting filament has high and low shrinkage regions substantially regularly spaced apart along its length. A yarn including a number of these filaments spontaneously develops crimps when relaxed.
IPC 1-7
IPC 8 full level
D01F 6/62 (2006.01); D01D 5/22 (2006.01); D01D 5/32 (2006.01)
CPC (source: EP KR)
D01D 5/22 (2013.01 - EP); D01D 5/32 (2013.01 - EP); D01F 6/62 (2013.01 - KR)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0041820 A1 19811216; EP 0041820 B1 19840704; BR 8103541 A 19820224; DE 3164556 D1 19840809; ES 502834 A0 19820401; ES 8203993 A1 19820401; JP S5729608 A 19820217; KR 830006486 A 19830924
DOCDB simple family (application)
EP 81302448 A 19810602; BR 8103541 A 19810604; DE 3164556 T 19810602; ES 502834 A 19810605; JP 8584781 A 19810605; KR 810001967 A 19810602