EP 0329294 A2 19890823 - Air nozzle for use in production of nonwoven fabric.
Title (en)
Air nozzle for use in production of nonwoven fabric.
Title (de)
Luftdüse zur Verwendung in der Herstellung von Vliesstoffen.
Title (fr)
Buse pneumatique à utiliser dans la production d'étoffe non tissée.
Publication
Application
Priority
JP 3241888 A 19880215
Abstract (en)
An air nozzle for use in the production of nonwoven fabric that is adapted to receive spun filaments from a spinning nozzle and feed the filaments in an air jet onto a receiver. The air nozzle is directed to the prevention of any abrasion of the inner surface of the nozzle body by an additive, such as titanium white, contained in filaments, and thus to the prevention of any defects in the nonwoven fabric. The inner surface of a nozzle body for guiding filaments is formed using a ceramic material to protect that surface. The nozzle body (15) has a conical passage (21) whose diameter gradually decreases from an inlet (19) for receiving the filaments from the spinning nozzle, and a straight passage (23) continuing from the conical passage and extending with a constant diameter, at least part of the inner surface of the conical passage and/or the straight passage being formed as a ceramic surface.
IPC 1-7
IPC 8 full level
D01D 5/08 (2006.01); D04H 1/72 (2006.01); D04H 1/736 (2012.01); D04H 3/03 (2006.01)
CPC (source: EP KR)
D01D 4/00 (2013.01 - KR); D04H 1/736 (2013.01 - KR); D04H 3/03 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0329294 A2 19890823; EP 0329294 A3 19900718; EP 0329294 B1 19931006; AT E95582 T1 19931015; DE 68909638 D1 19931111; DE 68909638 T2 19940210; JP 2575777 B2 19970129; JP H01207460 A 19890821; KR 890013230 A 19890922; KR 960000784 B1 19960112
DOCDB simple family (application)
EP 89300754 A 19890126; AT 89300754 T 19890126; DE 68909638 T 19890126; JP 3241888 A 19880215; KR 880017772 A 19881229