EP 4084633 A1 20221109 - METHOD AND APPARATUS TO CRIMP A SHEET
Title (en)
METHOD AND APPARATUS TO CRIMP A SHEET
Title (de)
VERFAHREN UND VORRICHTUNG ZUM CRIMPEN EINER FOLIE
Title (fr)
PROCÉDÉ ET APPAREIL POUR ONDULER UNE FEUILLE
Publication
Application
Priority
- EP 19220135 A 20191230
- EP 2020081711 W 20201111
Abstract (en)
[origin: WO2021136612A1] The invention relates to a method to crimp a sheet (2) having, before crimping, a thickness (11), a moisture, a composition and a width, the method comprising: • - obtaining one pre-crimping sheet (2) characteristic among: • o the thickness (11) of the sheet; • o the moisture of the sheet; • o the composition of the sheet; • o the width of the sheet; • - crimping the sheet (2) to form a plurality of corrugations on the sheet (10), the crimping including: • o providing a pair of crimping rollers (4,5) defining a nip (6) therebetween, the nip (6) having a nip size (14); • o inserting the sheet (2) in the nip (6); • - evaluating a post-crimping characteristic of the sheet (10) after crimping; and • - varying the nip size (14) on the basis of the obtained one of the pre-crimping sheet (2) characteristic, and on the basis of the evaluated post-crimping sheet (10) characteristic. The invention also relates to an apparatus (1) to crimp a sheet (2).
IPC 8 full level
CPC (source: EP KR US)
A24B 3/14 (2013.01 - US); A24B 15/12 (2013.01 - US); A24C 5/01 (2020.01 - EP KR US); A24D 3/0204 (2013.01 - EP KR US); A24D 3/04 (2013.01 - KR US); A24D 3/08 (2013.01 - KR); D21H 25/12 (2013.01 - US); A24B 3/14 (2013.01 - KR); A24B 15/12 (2013.01 - KR)
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021136612 A1 20210708; BR 112022012864 A2 20220906; CN 114901088 A 20220812; EP 4084633 A1 20221109; EP 4084633 B1 20231025; EP 4084633 C0 20231025; ES 2965220 T3 20240411; HU E064039 T2 20240228; JP 2023509013 A 20230306; KR 20220122683 A 20220902; PL 4084633 T3 20240325; US 2023031707 A1 20230202
DOCDB simple family (application)
EP 2020081711 W 20201111; BR 112022012864 A 20201111; CN 202080091011 A 20201111; EP 20801298 A 20201111; ES 20801298 T 20201111; HU E20801298 A 20201111; JP 2022539666 A 20201111; KR 20227025382 A 20201111; PL 20801298 T 20201111; US 202017789495 A 20201111