EP 0067684 A2 19821222 - Improved hollow polyester fibers for softer fiber fillings.
Title (en)
Improved hollow polyester fibers for softer fiber fillings.
Title (de)
Hohle Polyesterfasern für weichere Füllungen.
Title (fr)
Fibres de polyester creuses pour rembourrage fibreux plus doux.
Publication
Application
Priority
US 27327581 A 19810612
Abstract (en)
A hollow polyester fibre has a continuous void throughout its length, a saw-toothed type of crimp configuration, and contains a textile slackening agent. It has a non-round cross-section, a void content of 15-35% resulting from 4 continuous, parallel, equisized voids equispaced around a solid axial core, a denier per fibre of 4-10 and a crimp frequency of 4-10 crimps per in. The fibres can be intermingled to provide filling material for pillows, insulated garments and sleeping bags. The material has high bulk and high bulk durability, together with softness resembling that of natural down fillings. The fibre may be made of poly(ethylene terephthalate) and contain 0.1-1.0 wt.% Si as a silicone slackening agent. Pref. the void content is 17-25%, the denier per fibre is 5.0-6.0 crimp frequency is 5-7 crimps per in. and the fibre length is 2.0-3.0 in.
IPC 1-7
IPC 8 full level
CPC (source: EP KR)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0067684 A2 19821222; AU 8480482 A 19821216; JP S57210013 A 19821223; KR 840000680 A 19840227; NO 821953 L 19821213; PT 75045 A 19820701; PT 75045 B 19840221
DOCDB simple family (application)
EP 82303034 A 19820611; AU 8480482 A 19820611; JP 9791882 A 19820609; KR 820002652 A 19820612; NO 821953 A 19820611; PT 7504582 A 19820609