(19)

(11)

EP 3 497 283 A1

(12)

(43) Date of publication: 19.06.2019 Bulletin 2019/25 (21) Application number: 17751579.8 (22) Date of filing: 04.08.2017

(51) International Patent Classification (IPC):  D21H 27/00(2006.01) D21H 19/82(2006.01) D21H 19/36(2006.01) B65D 65/38(2006.01) (86) International application number: PCT/US2017/045414 (87) International publication number: WO 2018/031388 (15.02.2018 Gazette 2018/07)

(84) Designated Contracting States: 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 States: BA ME Designated Validation States: MA MD (30) Priority: 09.08.2016 US 201662372403 P 07.09.2016 US 201615258181 31.07.2017 US 201715664218 (71) Applicant: WestRock MWV, LLC Atlanta, GA 30328 (US)	(72) Inventors: PARKER, Steven Raleigh North Carolina 27606 (US) PANG, Jiebin Glen Allen Virginia 23059 (US) MELTON, Natasha Richmond Virginia 23221 (US) (74) Representative: Coulson, Elizabeth Eve et al Coulson & Rule 13 Whitehall Road Rugby, Warwickshire CV21 3AE Rugby, Warwickshire CV21 3AE (GB)