The Use of Carbon Nanoparticles for Inkjet-Printed Functional Labels for Smart Packaging

Figure 4

The photo of the obtained inkjet-printed images under UV light and daylight for three types of papers which differ by their absorbance: (a) paper A, (b) paper B, and (c) paper K. Concentration of carbon nanoparticles in the ink; 25 mg/mL. Currency detector Pro 7 Intellect Technology (UV lamp output is 7 W).

(a)

(b)

(c)