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1. (WO2016063049) IMPROVEMENTS IN SECURITY PAPERS AND DOCUMENTS

Pub. No.:    WO/2016/063049    International Application No.:    PCT/GB2015/053139
Publication Date: Fri Apr 29 01:59:59 CEST 2016 International Filing Date: Thu Oct 22 01:59:59 CEST 2015
IPC: D21H 21/40
D21H 21/44
Applicants: DE LA RUE INTERNATIONAL LIMITED
Inventors: HENDERSON, Peter McLean
SUGDON, Matthew Charles
STEWART, Georgina
Title: IMPROVEMENTS IN SECURITY PAPERS AND DOCUMENTS
Abstract:
The present invention is directed towards a security paper (10, 40) comprising at least one layer (11, 41, 42) of fibrous substrate and a security additive (14, 43) embedded and dispersed within the layer (11, 41, 42). The security additive (14, 43) is located within a predetermined region of the at least one layer (11, 41, 42) and at least 75% of the security additive (14, 43) in the predetermined region is fully embedded within the at least one layer (11, 41, 42). The security additive (14, 43) is detectable when the fibrous substrate is split, thereby exposing the security additive (14, 43). The present invention further provides a method of manufacturing the security paper (10, 40) and security documents made from the security paper (10, 40).