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Izdelava pametne embalaže z vključitvijo indikatorja časa in temperature
Bartol, Urška (Author), Gregor Svetec, Diana (Mentor) More about this mentor... This link opens in a new window, Klanjšek Gunde, Marta (Co-mentor)

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Abstract
Pametna embalaža za živila je zasnovana tako, da potrošniku s pomočjo pomembnih informacij o varnosti in kakovosti embaliranega izdelka omogoča sprejemati inteligentnejše odločitve o nakupu, hrambi ali zaužitju živila. Namen raziskave je bil oblikovati in izdelati pametno embalažo, ki bo potrošnika učinkovito informirala o temperaturnih pogojih embaliranega izdelka. Za izdelavo pametne embalaže za živila v hladni verigi smo se odločili, ker je temperaturna zloraba izdelkov eden izmed glavnih vzrokov za nastanek odpadne hrane. Za dosego ciljev smo uporabili različne raziskovalne pristope in načrte. V začetku raziskave je bilo raziskano izrazoslovje na področju pametne embalaže v Sloveniji. Nadalje so bili proučeni mehanizmi delovanja termokromnih sistemov, obstoječi indikatorji časa in temperature ter grafično oblikovanje pametne embalaže. V eksperimentalnem delu je opisan postopek izdelave temperaturnega indikatorja, načrtovanja kartonske embalaže in oblikovanja grafične podobe. Na podlagi primerjalne analize kakovosti dveh vzorcev, kartona in valovitega kartona, smo določili primernejši material za konstrukcijo embalaže. S pomočjo pridobljenih rezultatov meritev osnovnih, površinskih in mehanskih lastnosti je bil izbran enoslojni valoviti karton. Ugotovljeno je bilo, da izbrani material nudi embaliranemu izdelku ugodne zaščitne lastnosti. Po izdelani konstrukciji embalaže smo s pomočjo sitotiska natisnili indikatorje temperature in ugotavljali, kako na njegovo intenzivnost obarvanja vpliva debelina nanosa barvnega sloja. Temperaturno-odvisna barvna sprememba termokromne tiskarske barve je bila določena z barvnimi meritvami in ocenjena v barvnem prostoru CIELAB. Rezultati analize tiskarskih lastnosti termokromne barve so pokazali, da je barvna sprememba odtisov dovolj intenzivna in razpoznavna potrošnikom. Končni izdelek je pametna embalaža z visoko barvno jakostjo indikatorja, ki zaznava ustrezno temperaturo hranjenja izdelka hladne verige. Preprosta, toda potrošnikom zanimiva embalaža je namenjena shranjevanju prepeličjih jajc blagovne znamke Kmetija Redek.

Language:Slovenian
Keywords:pametna embalaža, termokromni sistemi, indikator časa in temperature, lastnosti valovitega kartona, kakovost odtisa
Work type:Master's thesis/paper (mb22)
Organization:NTF - Faculty of Natural Sciences and Engineering
Year:2020
Views:403
Downloads:155
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Secondary language

Language:English
Title:Creating smart packaging with time and temperature indicator
Abstract:
Smart food packaging is conceived so that it enables the consumer to make more intelligent decisions on the purchasing, storing and consuming by using important information about the safety and quality on the packaging. The aim of the research was to design and construct smart packaging which will effectively inform the consumer about the temperature requirements of the packaged product. We have decided to construct smart packaging for cold chain food products because temperature abuse in the food cold chain is one of the main causes of wasted food. We have used different research approaches and plans. First, we researched the terminology in the field of smart packaging in Slovenia. Further, we reviewed the workings of thermochromic systems, current time-temperature indicators and smart packaging graphic design. In the experimental part, we described time indicator construction, the drawing up of cardboard packaging and graphic design processes. Using comparative analysis of two samples, cardboard and corrugated cardboard, we have decided on the more appropriate material for the packaging. After obtaining the measurement results of basic, surface and mechanical properties we have chosen single layer corrugated cardboard. We found that this material offers optimum product protection. After constructing the packaging, temperature indicators were screen-printed. Then we established how the thickness of paint coating changes the indicator's colouring intensity. The temperature-dependent colour change of the thermochromic printing ink was determined by colour measurements and evaluated in the CIELAB colour space. The results of the analysis showed that the colour change of the prints is intensive enough and recognizable to consumers. The end product is smart packaging with high colour intensity of the indicator detecting the appropriate storage temperature of the cold chain product. Simple but consumer-attractive packaging is used by Kmetija Redek brand to store quail eggs.

Keywords:smart packaging, thermochromic systems, time and temperature indicator, corrugated cardboard properties, print quality

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