The goal of the research was the investigation of printability of thin plastic plates, produced from the 100% recycled polypropylene, 100% recycled low-density polyethylene and 100% recycled high-density polyethylene chips, made from the separatelly colected waste packaging. The surface roughness, coefficient of friction, surface energy and chemical composition of polymeric plate surface were analysed. Polymeric plates were printed with the UV inks in digital inkjet technique and the quality of prints was determined. The best printability and quality of prints were obtained for PP.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 2154608The goal of the research was the determination of the properties of polymeric materials, made from the virgin and recycled polymers, low-density polyethylene and high-density polyethylene. Mechanical properties of plates were correlated with some structural characteristics: softening and melting point, melting enthalpy and crystallinity degree. The comparison of mechanical, structural and surface properties of plates made out of virgin polymers and out of recycled polymers has shown how the recycling process influences the structure and properties of polymeric packaging materials.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 2080112In research the use of 100% recyled polypropylene from separately colected packaging waste in Slovenia for manufacturing of monofilaments was studied. The goal of research was to optimize the melt spinning of monofilaments from the recycled polypropylene polymer and to compare the properties of monofilaments obtained from the virgin polymer and blends of virgin and recycled polymer. Linear density, tensile properties and some structural characteristics were determined and compared.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 2097520Plastic foil was produced from recycled low-density polyethylene chips. Some of the foils were precoated with a white coating. For characterization of printability of stone white dolomitic marble was selected. Foils and stone were printed with the UV IJ printer - OCE Arizona. The analyses have shown that print quality depends upon smoothness of the surface, especially at stone. White coating of the foil increases the dot gain and also circularity of the dot. The dot gain can be controlled in the prepress while dot circularity depends upon interaction between the ink and surface substrate.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 2272624Printability of nonabsorbtive and structured materials, quick drying of inks and printing without use of volatile organic compaunds, are the main reasons why UV inks are becoming more popular. In the article two methods for analysis of UV inkjet prints, cofocal laser scanning microscopy (CSLM) and scanning electron microscopy (SEM) are presented and compared.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 2104432