EP 1264019 A2 20021211 - POLY(TRIMETHYLENE) TEREPHTHALATE TEXTILE STAPLE PRODUCTION
Title (en)
POLY(TRIMETHYLENE) TEREPHTHALATE TEXTILE STAPLE PRODUCTION
Title (de)
POLY(TRIMETHYLENE) TEREPHTHALATE TEXTIL STAPELFASERHERSTELLUNG
Title (fr)
PRODUCTION DE FIBRES TEXTILES COURTES A PARTIR DE POLY(TRIMETHYLENE) TEREPHTALATE
Publication
Application
Priority
- US 0108230 W 20010315
- US 18953100 P 20000315
Abstract (en)
[origin: WO0168962A3] A process for making textile staple fibre from polytrimethylene terephthalate (PTT) which comprises: (a) melt extruding PTT polymer at 245 to 253 DEG C, (b) spinning the extruded PTT into yarn using at least one spinneret, (c) moving the spun yarn to a first takeup roll wherein the distance from the spinneret to the roll is from 16 to 20 feet, (d) cooling the spun yarn to less than 31 DEG C before it reaches the roll, (e) prior to the draw process, preconditioning the yarn under tension at a temperature of at least 60 DEG C, (f) drawing the yarn at a temperature of at least 60 DEG C, (g) allowing the drawn yarn to relax at a temperature of up to 190 DEG C, and (h) crimping the drawn yarn at a temperature of 70 to 120 DEG C, and decreasing the drawn yarn feed denier into the crimper by 10 to 60 percent by denier.
IPC 1-7
IPC 8 full level
D01F 6/62 (2006.01); D02G 1/12 (2006.01); D03D 15/00 (2006.01)
CPC (source: EP KR)
D01F 6/62 (2013.01 - EP KR)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0168962 A2 20010920; WO 0168962 A3 20020131; AT E298810 T1 20050715; AU 4743701 A 20010924; BR 0109290 A 20021217; CA 2402533 A1 20010920; CA 2402533 C 20100427; CN 1179074 C 20041208; CN 1425082 A 20030618; DE 60111724 D1 20050804; DE 60111724 T2 20060504; EP 1264019 A2 20021211; EP 1264019 B1 20050629; ES 2243474 T3 20051201; JP 2003527497 A 20030916; KR 100688822 B1 20070228; KR 20020091131 A 20021205; MX PA02009026 A 20030425; PL 357910 A1 20040809
DOCDB simple family (application)
US 0108230 W 20010315; AT 01920379 T 20010315; AU 4743701 A 20010315; BR 0109290 A 20010315; CA 2402533 A 20010315; CN 01808217 A 20010315; DE 60111724 T 20010315; EP 01920379 A 20010315; ES 01920379 T 20010315; JP 2001567836 A 20010315; KR 20027012125 A 20020914; MX PA02009026 A 20010315; PL 35791001 A 20010315