(19)

(11)

EP 3 538 709 A1

(12)

(43) Date of publication: 18.09.2019 Bulletin 2019/38 (21) Application number: 17804757.7 (22) Date of filing: 10.11.2017

(51) International Patent Classification (IPC):  D21H 19/40(2006.01) D21H 19/70(2006.01) D21H 21/18(2006.01) D21H 19/42(2006.01) D21H 21/54(2006.01) D21H 19/82(2006.01) (86) International application number: PCT/US2017/061008 (87) International publication number: WO 2018/089739 (17.05.2018 Gazette 2018/20)

(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: 11.11.2016 US 201662420586 P 25.01.2017 US 201762450191 P (71) Applicant: Westrock MWV, LLC Atlanta, Georgia 30328 (US)	(72) Inventors: BUSHHOUSE, Steven, G. Quinton, Virginia 23141 (US) FUGITT, Gary, P. Rockville, Virginia 23146 (US) GINTHER, Scott Moseley, Virginia 23120 (US) (74) Representative: Coulson, Elizabeth Eve et al Coulson & Rule 13 Whitehall Road Rugby, Warwickshire CV21 3AE Rugby, Warwickshire CV21 3AE (GB)