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| Constant Parameter | Size of raster dots (i.e., printed and unprinted surface area) | Depth of printing elements on a printing plate (i.e., engraving depth, layer thickness) |
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| (i) The nature of the influence on the luminescence peak at λ = 400 nm | Constant parameter specifies the luminescence of unprinted areas (12,5% of the total raster area), accounted to the luminescence of a polymer film. Constant parameter specifies the luminescence of printed areas (87,5% of the total raster area), accounted to the luminescence of PVP as a component of the nanophotonic composition | Constant parameter specifies the luminescence of printed areas (layer thickness is 80 µm), accounted to the luminescence of the polymer (PVP) as a component of the nanophotonic composition |
| (ii) The nature of the influence on the luminescence peak at λ = 525 nm | Constant parameter specifies the luminescence of printed areas (87,5% of the total raster area), accounted to the luminescence of nano-ZnO as a component of the nanophotonic composition | Constant parameter specifies the luminescence of printed areas (layer thickness is 80 µm), accounted to the luminescence of nano-ZnO as a component of the nanophotonic composition |
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| Variable Parameter | Depth of printing elements on a printing plate (i.e., engraving depth, layer thickness) | Size of raster dots (i.e., printed and unprinted surface area) |
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| (i) Nature of the influence on the luminescence peak at λ = 400 nm | Variable parameter specifies the dependence (2nd-order curve with slow growth) of the luminescence intensity on the thickness of printed areas of nanophotonic elements (30–120 µm) accounted to the luminescence of PVP as a component of the nanophotonic composition | Variable parameter specifies the linear dependence of the luminescence intensity on the unprinted area of the polymer substrate (of 12,5–87,5% raster printed areas, resp.), accounted to the luminescence of PVP and—for printed areas—nano-ZnO as components of the nanophotonic composition |
| (ii) Nature of the influence on the luminescence peak at λ = 525 nm | Variable parameter specifies the dependence (2nd-order curve with rapid growth) of the luminescence intensity on the thickness of printed areas of nanophotonic elements (30–120 µm) accounted to the luminescence of nano-ZnO as a component of the nanophotonic composition. | Variable parameter specifies the linear dependence of the luminescence intensity on the unprinted area of the polymer substrate (of 12,5–87,5% raster printed areas, resp.), accounted to the luminescence of nano-ZnO as a component of the nanophotonic composition |
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| Type of the dependence of total luminescence intensity on percentage of raster area | Curve of 2nd order | Linear |
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| Recommendations for the use of this type of printing plate | For more luminescence intensity spot at 55%; for luminescence spectrum with a larger peak at λ = 525 nm (yellowish shades of luminescence colour) | For more luminescence intensity spot at 55%; for luminescence spectrum with a larger peak at λ = 400 nm (green shades of luminescence colour) |
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