EP 1064424 A1 20010103 - IMPROVED PROCESS FOR THE PREPARATION OF SECURITY THREAD
Title (en)
IMPROVED PROCESS FOR THE PREPARATION OF SECURITY THREAD
Title (de)
VERBESSERTES VERFAHREN ZUR HERSTELLUNG EINES SICHERHEITSFADENS
Title (fr)
PERFECTIONNEMENT D'UN PROCEDE DE REALISATION DU FIL DE SECURITE
Publication
Application
Priority
- KR 9900089 W 19990226
- KR 19980006706 A 19980302
Abstract (en)
[origin: WO9945199A1] A security thread having an enhanced security feature is produced by forming a water-soluble ink layer on a selected portion of the surface of a transparent film; depositing a metal layer on the film surface including the water-soluble ink layer; and washing the metal deposited film with water to remove the portion of the metal layer deposited on the water-soluble ink layer.
IPC 1-7
IPC 8 full level
B41M 3/14 (2006.01); B42D 15/00 (2006.01); D21H 21/42 (2006.01)
CPC (source: EP)
D21H 21/42 (2013.01)
Citation (search report)
See references of WO 9945199A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9945199 A1 19990910; AT E304627 T1 20050915; CN 1107764 C 20030507; CN 1292054 A 20010418; DE 69927248 D1 20051020; DE 69927248 T2 20060112; EP 1064424 A1 20010103; EP 1064424 B1 20050914; ES 2245090 T3 20051216; KR 19990073639 A 19991005; RU 2188268 C2 20020827
DOCDB simple family (application)
KR 9900089 W 19990226; AT 99906557 T 19990226; CN 99803609 A 19990226; DE 69927248 T 19990226; EP 99906557 A 19990226; ES 99906557 T 19990226; KR 19980006706 A 19980302; RU 2000124869 A 19990226