The revolution in the printing industry started by digital printing has resulted in the introduction of personalised production of small runs, fast job changes and short deadlines. By introducing digital printing into mainstream and production focus, even for the largest printing machine manufacturers, a new era of the graphic industry has just begun. After these significant changes in the printing process, the following process of graphic production – post-press needs to be digitalised. The initial goal is to back up the possibilities of digital printing and enable it to be applied as widely as possible to its full potential. Postpress has become a bottleneck in the digital world. One of the analogous processes, which is the focus of improvement, is the cutting of graphic materials in irregular shapes in the process of creating packaging. The use of lasers enables the digitisation of the die-cut or partial cutting post-press process. Cutting of different shapes is obtained when the laser touches the substrate and where it evaporates at that moment. A thermal process accompanies this evaporation, that to a greater or lesser extent affects the substrate to be cut. The parameters that govern laser are the subject of this paper. The development of laser cutting technology has opened various possibilities for innovations in the graphic and printing industry. Since this is still considered as new technology, extensive researches on its options are essential to reach the full potential of this technology. This paper is going to analyse the overall characteristics and use of laser technology in the graphic industry by focusing on the processing of paper materials. Indispensible to mention are the advantages and disadvantages of this technology. There are a lot of comparisons among existing technologies developed for cutting graphic materials and paper. The importance of this topic is concerning all production phases of the graphic product – from processing the raw material to cutting the final product such as packaging. Regarding that, the scope of the laser processing of the graphic materials is reviewed. The paper gives suggestions for further research and experiments regarding this topic.

Nowadays technology has developed a new form of appearance-virtual reality. This term currently exists in three different forms, virtual reality, augmented reality and mixed reality. Among these technologies, mixed reality has the most potential for use in everyday activities and education. This paper represents the overview of virtual reality technologies, their functioning and potential applications. When it comes to interaction, the mixed reality devices provide a completely new way of perception and understanding of the virtual space and objects. Since it is possible to interact with objects that exist in a virtual world in the same way as with objects that exist in the physical world, the high potential for the use of this technology for learning is evident. Utilizing advanced hardware components such as transparent displays and cameras simulating stereoscopic vision, in combination with advanced software technologies including spacial mapping, ambient lighting, ambient sound, identifying objects, movements from the real world and location, MR provides the closest HCI experience so far. Discussing the potential use of this technology, and current development phase in which it exists, the paper has the aim to induce questions and interest about further development of its use and application, such as multimedia learning (Mayer. 2009). The example of the use of MR technology on the HoloLens device is provided in this paper, in order to demonstrate the way of its use.

Contemporary packaging is more than just packaging and has other various roles that raise the product value. Technology development enabled packaging design to become more complex and improve quality and performance. Cutting different and complex shapes and forms has become a standard requirement in the packaging industry. Perforation has become one of the central elements of the packaging to aid the hole opening and product use, to aid the box forming process, and for design purposes. Packaging material requires sufficient tensile strength to maintain the primary role of packaging. Therefore, it is important to investigate the tensile strength of perforated paper in order to control the strength and durability of the packaging. Our research aims to investigate whether the paper material's tensile strength changes by using different perforation designs. We designed different perforations varying the bridge width. Cutting is done using CO2 laser technology Trotec Speedy 300 machine system. The obtained results show that different perforation designs (variations of bridge and gap width) require a different amount of force applied to break the paper material, regardless of paper grammage. Meaning that the same type of perforation design has the same tensile strength regardless examined grammage. This paper suggests further research and experiments regarding perforation for packaging.

Laser technology in post-press is used for various products to get a unique shape. It has been used in producing packaging prototypes, finishing and marking the surface of both paper and other materials, thus making the graphic industry more flexible and diverse. Whether in the coming years, the production of graphic products, especially packaging, will be able to rely on the advantages offered by laser technology depends on the extent of degradation of materials that are cut by the laser. In addition to the visual analysis, it is necessary to carry out experiments examining whether material degradation occurs during laser treatment or whether the structure, homogeneity, and mechanical characteristics are kept. Perhaps the most effective method to show if the packaging obtained by laser cutting can be used in the industrial production of packaging is a comparison with the characteristics of packaging materials obtained by traditional cutting methods with the cutting and die-cut machines. The work examines which parameters need to be examined and compared so that laser cutting can be applied in packaging production.

Oblast -GRAFIČKO INŽENJERSTVO I DIZAJNKratak sadržaj -Načini učenja i podučavanja u digitalnom dobu se razlikuju od konvencijalnih. Rad se bavi istraživanjem mogućnosti primene igara u poboljšanju efikasnosti savladavanja gradiva koje je potrebno naučiti, u okviru aktuelnog plana i programa Departmana grafičkog inženjerstva i dizajna. Rad istražuje i učenje kroz igru, na primeru gradiva koje se uči na Departmanu za grafičko inženjerstvo i dizajn, iz oblasti prostornog dizajna. Cilj rada je istraživanje novih načina povećanja efikasnosti usvajanja gradiva, koji treba da su više prilagođeni novim generacijama koje imaju drugačije navike učenja. U radu su predstavljeni ključni faktori koji su odgovorni za efikasno, uspešno i poboljšano učenje kroz analizu konvencionalnih načina učenja, savremenih načina učenja, teorija koje se bave učenjem. Takođe, cilj je da se istraže kompjuterske igre i njihov potencijal u učenju.Abstract -Methods of learning and teaching in the digital era differ from conventional. This paper reviews the use of video games in educational purpose and their adaptation as a learning tool. Additionally, the paper examines possibilities of learning 3d modelling through digital games on the Department of graphic engineering and design. Paper aims to research the adaptation of learning lessons to new generations and their habits. Through this paper, conventional ways of learning, contemporary ways of learning, theories of learning and digital games are analysed. Also, the aim is to research computer games and their potential in the higher education context.Ključne reči: učenje, igra, učenje kroz igru, digitalni mediji, interakcija