Global Patent Index - EP 1493854 B1

EP 1493854 B1 20060322 - Process and device for producing nonwovens

Title (en)

Process and device for producing nonwovens

Title (de)

Vorrichtung und Verfahren zur Vliesbildung

Title (fr)

Procédé et installation pour la formation de non-tissés

Publication

EP 1493854 B1 20060322 (DE)

Application

EP 04013153 A 20040603

Priority

DE 10329648 A 20030701

Abstract (en)

[origin: EP1493854A1] An assembly (K) converts loose fibres into a non-woven web of varying thickness. The assembly has an all-steel opening cylinder (1) with air-driven fibre discharge to a sieve belt (9) that progressively accumulates fibres. The assembly further has a speed controller that alters the sieve belt speed with respect to the drum speed of rotation. The fibres are discharged by the sieve belt to a cross-layer fibre release arm that converts loose pile fibre to a fleece web. The control system regulates sieve belt speed in proportion to the cross-layer fibre release arm motion. Also claimed a commensurate process to produce a non-woven fibre web.

IPC 8 full level

D01G 25/00 (2006.01); D04H 1/74 (2006.01)

CPC (source: EP)

D01G 25/00 (2013.01); D04H 1/74 (2013.01)

Designated contracting state (EPC)

AT DE FR IT

DOCDB simple family (publication)

EP 1493854 A1 20050105; EP 1493854 B1 20060322; AT E321159 T1 20060415; DE 10329648 A1 20050127; DE 10329648 B4 20050616; DE 502004000367 D1 20060511

DOCDB simple family (application)

EP 04013153 A 20040603; AT 04013153 T 20040603; DE 10329648 A 20030701; DE 502004000367 T 20040603