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In a first aspect, the invention provides an ink formulation comprising: (a) a near infrared absorbing system comprising a tungsten bronze of the formula M 2 x W y O z , wherein M 2 is one or more elements selected from the group consisting of H, He, alkali metals, alkaline earth metals, rare-earth...

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Bibliographische Detailangaben
1. Verfasser:	JARVIS, Anthony
Format:	Patent
Sprache:	dan
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY CINEMATOGRAPHY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COLOUR PRINTING CORRECTING FLUIDS CORRECTION OF TYPOGRAPHICAL ERRORS DYES ELECTROGRAPHY ELECTROPHOTOGRAPHY FILLING PASTES HOLOGRAPHY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME INKS LINING MACHINES MAGNETOGRAPHY METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS POLISHES PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	In a first aspect, the invention provides an ink formulation comprising: (a) a near infrared absorbing system comprising a tungsten bronze of the formula M 2 x W y O z , wherein M 2 is one or more elements selected from the group consisting of H, He, alkali metals, alkaline earth metals, rare-earth elements, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Hf, Os, Bi and I, or ammonium, wherein x, y and z satisfy the relationships 0.001¤x/y¤2 and 2.2¤z/y¤3, and the tungsten bronze has an absorptivity ratio of ±/² "a to ²" of