Abstract
The paper presents research related to thermochromic inks printed on textile materials. These types of materials are smart materials, they act as packaging indicators, and we use them to develop a software application on mobile devices. That application identifies the most significant changes in parameters of the goods contained in the packaging, such as temperature changes during the storage and transport (goods packaged in packaging that is sensitive to heat), or such as pharmaceuticals and frozen food, etc. This paper aims to demonstrate the possibility of connecting thermochromic materials and Augmented Reality technology through the development of an application for identifying thermochromic materials changes. The tested samples were printed on the textile with a screen printing technique with conventional and thermochromic leuco inks on various textile materials. The Augmented Reality platform Vuforia was used for developing a software application for mobile devices. The application was developed for the iOS mobile platform. The result of the research is the functional application that actively monitors and displays changes in thermochromic materials due to temperature changes, which identifies the effect of heat on the goods in textile packaging.
Highlights
Interactive smart materials are already being used in mechanical engineering, healthcare and the electronics industries
Process application was not able to read more than one code in the moment of reading, and it was difficult for an application to recognize live temperature change
The result of this research is a working application that can be used for identifying thermochromic materials changes
Summary
Interactive smart materials are already being used in mechanical engineering, healthcare and the electronics industries. The possibilities for textile and packaging are still almost at an experimental stage. Interactive smart materials are those that respond to a change in the environment, such as temperature, pressure, UV radiation, magnetic field, energetic impact or moisture. Thermochromism can be defined as the reversible change in the colour of a compound with temperature [2]. This thermochromic colour change is quite noticeable, often dramatic and occurs over a small temperature interval. In the last few years, the research on the application of these systems on textiles has picked up significantly which has the potential to unlock commercially important nascent high-tech applications [3]
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