(19)

(11)

EP 3 448 689 A1

(12)

(43) Date of publication: 06.03.2019 Bulletin 2019/10 (21) Application number: 17718583.2 (22) Date of filing: 11.04.2017

(51) International Patent Classification (IPC):  B42D 25/23(2014.01) B42D 25/46(2014.01) B42D 25/21(2014.01) B42D 25/455(2014.01) B42D 25/24(2014.01) (86) International application number: PCT/GB2017/051012 (87) International publication number: WO 2017/187132 (02.11.2017 Gazette 2017/44)

(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: 27.04.2016 GB 201607336 (71) Applicant: De La Rue International Limited Basingstoke, Hampshire RG22 4BS (GB)	(72) Inventors: STEWART, Georgina Basingstoke, Hampshire RG22 4BS (GB) SUGDON, Matthew Basingstoke, Hampshire RG22 4BS (GB) (74) Representative: Boult Wade Tennant LLP  Verulam Gardens 70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)