The purpose of printing stickers and magnets using thermochormic printing inks was to prove their usefulness and commercial value and to make potential consumers aware of the dangers of the sun to pets left in cars. Many people still leave dogs, cats and even children in cars because they’re unaware of the danger that prolonged sun exposure presents. The aim of this diploma thesis was to print magnets and stickers using thermochromic colors and analyze their usability.
In the theoretical part, we described the printing technique, screen printing and thermochromic printing inks used in the process of manufacturing thermochromic labels and magnets. We also presented the characteristics of functional printing and the technological advances made possible by it. We have researched the chemical composition of thermochromic pigments and how thermochromism works in printing inks using leuco dyes as pigments.
In the experimental part, we presented the methods used in the making of the product. Firstly, we made the motive, copy template and printing from, followed by the printing process. Next, we described the tests needed to compare the quality of the material and equipment needed to carry out such tests. In the last part of the diploma thesis we presented the measurements and the results acquired while carrying out tests. Lastly, we presented our findings and conclusions.