Valuable document system

A value document system, comprising at least a first value document and a second value document,

• the first value document comprising a security feature composed of a combination of at least a first and a second luminescent substance,
• i. the first luminescent substance of the security feature of the first value document being a luminescent substance of a first substance class, comprising doped garnet structures;
• ii. the second luminescent substance of the security feature of the first value document being a luminescent substance of a second substance class, comprising doped rare earth oxysulfides, doped rare earth-phosphates and doped rare earth vanadates;
• iii. the first and the second luminescent substance of the security feature of the first value document having partially overlapping emission spectra;
• iv. the first and the second luminescent substance of the security feature of the first value document being jointly excitable at one wavelength;
• v. the first and the second luminescent substance of the security feature of the first value document having a decay time of less than 5 ms;
• and
• vi. the first and second luminescent substance of the security feature of the first value document being formed in such a way that a primary emission range of their partially overlapping emission spectra is dividable into two different, directly adjacent spectral ranges, namely a first and a second spectral range, which have a width of at least 50 nm and a maximum of 500 nm;
• the second value document comprising a security feature having at least a first luminescent substance from the first substance class or from the second substance class having a decay time of less than 5 ms, whose emission is at least partially in at least one of the adjacent spectral ranges A, B;
• and
• the security feature of the first value document having at least a different intensity ratio of the emission, a different decay time ratio and a different decay time sum in the two adjacent spectral ranges A, B compared with the security feature of the second value document;
• wherein the luminescent substances of the first substance class are selected from doped yttrium aluminum garnets (YAG), lutetium aluminum garnets (Lu-AG), gadolinium gallium garnets (GGG), gadolinium scandium gallium garnets (GSGG), yttrium scandium gallium garnets (YSGG), calcium niobium gallium garnets (CNGG), gadolinium scandium aluminum garnets (GSAG), calcium lithium niobium gallium garnets (CLNGG), transition-metal-containing garnet structures, yttrium iron garnets (YIG) or mixed variants of these garnet structures.