For the waste paper and cardboard packaging, recycling is one of the most desirable options when it comes to their disposal in order to reduce their environmental impact. Therefore, with developing new packaging materials, apart from their promiscuous properties, it is necessary to examine their environmental impact. Biodegradable polymers increasingly find their application in packaging due to lower harmful environmental effects compared to synthetic polymers. But sometimes their mechanical properties are weaker than those of synthetic polymers. In order to improve the mechanical properties of biopolymers, nanoparticles are increasingly used recently. Therefore, the impact of different grammage of cardboard and cardboard coated with biodegradable polycaprolactone polymer coating (PCL) has been investigated. In addition, the influence of aluminium modified PCL coating on the recycling effiency was also investigated. The coating samples were prepared by dissolving PCL polymer in ethyl acetateby, and the nanoparticles by dispersing nanoparticles with disperser. Different grammages of cardboard (230 g / m2, 280 g / m2, 350 g / m2) were printed by offset and then coated with PCL and PCL nanocomposite coatings. Recycling was carried out under laboratory conditions using INGEDE 11 method. Deinkability was evaluated by the determination of optical properties and the system of image analy