CONTINUED COLOR CHANGEABLE SECURITY THREAD COMPRISING MICRO OPTICAL STRUCTURE AND A METHOD OF PREPARING THE SAME

PURPOSE: A continued color changeable security thread is provided to have continuous two or more color change to constant direction according to predetermined movement. CONSTITUTION: A continued color changeable security thread comprises a step of forming an optical micro lens on one side of a base...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	KIL, CHUNG HA
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	COLOUR PRINTING LINING MACHINES PERFORMING OPERATIONS PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TRANSPORTING TYPEWRITERS
Online-Zugang:	Volltext bestellen
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