EP 4279648 A1 20231122 - PROCESS AND APPARATUS FOR PRODUCING A VOLUMINOUS NONWOVEN FABRIC

Title (en)

PROCESS AND APPARATUS FOR PRODUCING A VOLUMINOUS NONWOVEN FABRIC

Title (de)

VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES VOLUMINÖSEN VLIESSTOFFES

Title (fr)

D&#201

Publication

EP 4279648 A1 20231122 (EN)

Application

EP 23173651 A 20230516

Priority

IT 202200010262 A 20220517

Abstract (en)

The present invention relates to a process for producing a nonwoven fabric, comprising the steps of:(a) extruding a plurality of filaments from a spinneret, said filaments being at least bicomponent filaments;(b) depositing said filaments to form a nonwoven fabric on an element collecting the filaments;(c) performing a bonding of said nonwoven fabric;(d) increasing the thickness of said nonwoven fabric by crimping at least part of the filaments by heating said nonwoven fabric;(e) preferably performing a setting of said nonwoven fabric;wherein said steps (c) and (d) are performed substantially simultaneously by means of a heated calender.

IPC 8 full level

D04H 3/018 (2012.01); D01D 5/22 (2006.01); D01D 5/32 (2006.01); D04H 3/147 (2012.01); D04H 3/16 (2006.01)

CPC (source: EP US)

D01D 5/22 (2013.01 - EP); D01D 5/32 (2013.01 - EP); D02G 1/06 (2013.01 - EP); D04H 3/005 (2013.01 - US); D04H 3/018 (2013.01 - EP); D04H 3/147 (2013.01 - EP US); D04H 3/16 (2013.01 - EP US); D06C 7/02 (2013.01 - US); D06C 15/02 (2013.01 - US); D06C 15/08 (2013.01 - US)

Citation (applicant)

US 5382400 A 19950117 - PIKE RICHARD D [US], et al
US 2013029555 A1 20130131 - MORIMOTO HISASHI [JP]
US 2009152757 A1 20090618 - SOMMER SEBASTIAN [DE], et al
US 2008210363 A1 20080904 - SOMMER SEBASTIAN [DE], et al
US 3458390 A 19690729 - ANDO SATOSHI, et al
WO 2008072278 A2 20080619 - FARE SPA [IT], et al
WO 2008075176 A1 20080626 - FARE SPA [IT], et al
EP 1939334 A1 20080702 - FARE SPA [IT]
EP 16198713 A 20161114

Citation (search report)

[XAI] EP 1456017 B1 20070307 - INVISTA TECH SARL [US]
[A] EP 3321407 A1 20180516 - FARE SPA [IT]
[XDA] US 5382400 A 19950117 - PIKE RICHARD D [US], et al
[XDA] US 2013029555 A1 20130131 - MORIMOTO HISASHI [JP]
[XA] US 2004224136 A1 20041111 - COLLIER L WARREN [US], et al
[A] EP 3385423 A1 20181010 - FARE SPA [IT]

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4279648 A1 20231122; US 2024141570 A1 20240502

DOCDB simple family (application)

EP 23173651 A 20230516; US 202318318751 A 20230517