EP 2841037 A2 20150304 - APPARATUS AND PROCESS FOR APERTURING AND STRETCHING A WEB
Title (en)
APPARATUS AND PROCESS FOR APERTURING AND STRETCHING A WEB
Title (de)
VORRICHTUNG UND VERFAHREN ZUM PERFORIEREN UND STRECKEN EINES NETZES
Title (fr)
APPAREIL ET PROCESSUS D'OUVERTURE ET D'ÉTIREMENT D'UNE BANDE
Publication
Application
Priority
- US 201213455857 A 20120425
- US 2013038091 W 20130425
Abstract (en)
[origin: WO2013163360A2] Apparatuses and processes for aperturing and stretching a web are disclosed. In one embodiment, the method involves feeding a web into a nip that is formed between at least one pair of intermeshing rolls. The first roll is a raised ridge rotary knife aperturing roll and the second roll is a ring roll; both rolls comprise ridges and grooves. The first roll comprises a plurality of spaced-apart teeth extending outwardly from the top surface of the ridges, said teeth having tips, wherein the top surface of said ridges are disposed between the tips of said teeth and the bottom surface of said grooves. These apparatuses and processes enable a web to be formed which comprises apertures having greater open area than previously achievable with traditional processes and apparatuses.
IPC 8 full level
A61F 13/15 (2006.01)
CPC (source: CN EP KR)
A61F 13/15707 (2013.01 - CN EP); B26F 1/20 (2013.01 - EP); B26F 1/24 (2013.01 - EP); B29C 55/18 (2013.01 - EP); B65H 35/02 (2013.01 - KR)
Citation (examination)
- US 2010201024 A1 20100812 - GIBSON FREDRICK WILLIAM [US], et al
- US 2008217809 A1 20080911 - ZHAO JEAN JIANQUN [US], et al
- US 2011024940 A1 20110203 - QURESHI KHALID [US], et al
- US 2008221538 A1 20080911 - ZHAO JEAN JIANQUN [US], et al
- See also references of WO 2013163360A2
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 MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2013163360 A2 20131031; WO 2013163360 A3 20140130; BR 112014026584 A2 20170627; CA 2871673 A1 20131031; CA 2871673 C 20180417; CL 2014002885 A1 20150213; CN 104302257 A 20150121; CN 104302257 B 20170412; EP 2841037 A2 20150304; IL 235260 A0 20141231; IN 8773DEN2014 A 20150522; JP 2015519227 A 20150709; JP 5956062 B2 20160720; KR 20140135843 A 20141126; MX 2014012819 A 20151113; MX 352895 B 20171213; RU 2014139945 A 20160420; RU 2604586 C2 20161210; SG 11201406853S A 20141127
DOCDB simple family (application)
US 2013038091 W 20130425; BR 112014026584 A 20130425; CA 2871673 A 20130425; CL 2014002885 A 20141024; CN 201380021529 A 20130425; EP 13725229 A 20130425; IL 23526014 A 20141022; IN 8773DEN2014 A 20141018; JP 2015507260 A 20130425; KR 20147029508 A 20130425; MX 2014012819 A 20130425; RU 2014139945 A 20130425; SG 11201406853S A 20130425