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Material printing on R2R printer
Knobová, Klára ; Vališ, Jan (referee) ; Veselý, Michal (advisor)
This diploma thesis deals with material printing using roll to roll material printer. Several kinds of printing inks were prepared and their parameters, like viscosity and homogeneity were optimized. Corona treated PET foil was used as the flexible substrate. Thin layers of function material were prepared by coating by using the smooth cylinder and slot die method. Layers homogeneity was characterized by optical density. Layer thickness was measured by profilometer.
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Material printing of light dosimeters
Kabelková, Markéta ; Vališ, Jan (referee) ; Veselý, Michal (advisor)
This diploma thesis is focused on material printing of light dosimeters, especially printing of dosimeters for visible light and two types of UV radiation dosimeters. The aim of this work was to convert optimized systems from laboratory scale to pilot plant and to prepare individual systems for large-scale printing. The experimental part deals with the preparation and gradual scaling of compositions to a pilot scale, including optimization of individual components. Problems which were found during scaling up are discussed. A roll-to-roll material printer with slot-die technique was used to convert to a pilot scale. The prepared layers were exposed and their color changes was studied in detail. In addition to printing optimization, the thicknesses of the prepared layers and their resistance were determined, as well as tests of shelf life and reaction of dosimeters to ozone. According to the tests which were performed, guidelines for quality control of light dosimeters printing were compiled.
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Material printing upscaling of chemical sensors to R2R techniques
Fanglová, Michaela ; Krystyník, Pavel (referee) ; Veselý, Michal (advisor)
The main task of the diploma´s thesis was to prepare mixtures for printing ozone and UVB sensors. Subsequently, to optimize the compositions and rheological properties of these mixtures for the preparation of chemical sensors for printing by production R2R machnies, including their calibration to detect required doses of ozone and UVB radiation. The experimental study focoused on the laboratory preparation of mixtures for chemical sensors and their subsequent conversion and printing on semi-operational and production R2R machines. The transfer of production to a larger scale was achieved through changes in the rheological properties of the compositions. The prepared ozone sensors were exposed to different ozone doses and their color change was monitored as a function of the ozone dose. The UVB sensors were calibrated to the required UVB dose and their colour response to the UVB dose was monitored.
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Material printing of light dosimeters
Kabelková, Markéta ; Vališ, Jan (referee) ; Veselý, Michal (advisor)
This diploma thesis is focused on material printing of light dosimeters, especially printing of dosimeters for visible light and two types of UV radiation dosimeters. The aim of this work was to convert optimized systems from laboratory scale to pilot plant and to prepare individual systems for large-scale printing. The experimental part deals with the preparation and gradual scaling of compositions to a pilot scale, including optimization of individual components. Problems which were found during scaling up are discussed. A roll-to-roll material printer with slot-die technique was used to convert to a pilot scale. The prepared layers were exposed and their color changes was studied in detail. In addition to printing optimization, the thicknesses of the prepared layers and their resistance were determined, as well as tests of shelf life and reaction of dosimeters to ozone. According to the tests which were performed, guidelines for quality control of light dosimeters printing were compiled.
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Material printing on R2R printer
Knobová, Klára ; Vališ, Jan (referee) ; Veselý, Michal (advisor)
This diploma thesis deals with material printing using roll to roll material printer. Several kinds of printing inks were prepared and their parameters, like viscosity and homogeneity were optimized. Corona treated PET foil was used as the flexible substrate. Thin layers of function material were prepared by coating by using the smooth cylinder and slot die method. Layers homogeneity was characterized by optical density. Layer thickness was measured by profilometer.
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