CARD AND IMAGE FORMING METHOD

PURPOSE:To obtain a card capable of setting the discrimination data original to a publisher and capable of being discriminated visually and having high forgery preventing effect by providing a display part wherein a metal reflecting layer, a polymer liquid crystal layer and a polarizing film layer a...

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Bibliographische Detailangaben
Hauptverfasser:	KIJIMA ATSUSHI, HAMADA NOBUHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BOOK COVERS BOOKBINDING COLOUR PRINTING DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FILES FREQUENCY-CHANGING INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LINING MACHINES LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PERFORMING OPERATIONS PHYSICS PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES SPECIAL PRINTED MATTER STAMPS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a card capable of setting the discrimination data original to a publisher and capable of being discriminated visually and having high forgery preventing effect by providing a display part wherein a metal reflecting layer, a polymer liquid crystal layer and a polarizing film layer are successively laminated to the single surface or both surfaces of the card. CONSTITUTION:A metal reflecting layer 3, a polymer liquid crystal layer 4 and a polarizing film 5 are successively laminated to a card base material 2 and, if necessary, a protective layer 6 may be formed to the polarizing layer 5. The metal reflecting layer 3 is formed from a vapor deposition film or sputtering film composed of a metal or alloy having reflectivity. The polymer liquid crystal layer has an m.p. of about 80-200 deg.C and pref. shows thermotropic properties and, for example, there is a thermotropic polymer material such as a polyester copolymer. As the polarizing film, a PVA-iodine type film and a dichromatic dye type film are used.