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Material printing of identification signs
Šerík, Matej ; Vališ, Jan (oponent) ; Veselý, Michal (vedoucí práce)
This bachelor thesis deals with material printing, focusing on the preparation and analysis of clichés for pad printing, the optimization of functional compositions deposited by a hand held pad printing machine on PET films, and the characterization of these deposited layers. Two fluorescent compositions with different fluorescent derivatives were prepared, which, upon excitation with electromagnetic radiation, emitted specific infrared radiation, allowing them to be distinguished. The fluorescent compositions were applied to PET films using a hand held pad printing machine. The optimal concentration of fluorescent derivatives in the compositions and the ideal layer thickness to achieve the maximum intensity of fluorescent emission were determined. One of the objectives of the work was the preparation of scent markers by encapsulating peppermint essential oil in liposomes, which allows controlled release of the fragrance after mechanical disruption. The scent markers were not homogeneous but showed the desired properties after the disruption of the microparticles. However, the use of screen printing compared to pad printing resulted in better homogeneity ofthe scent markers. Steel clichés were found to be the most suitable for the application of all layers, whereas glass clichés could be an attractive alternative when prepared by higher resolution laser engraving.
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Printing of up-conversion marks
Azariová, Viktória ; Ďurovič, Michal (oponent) ; Veselý, Michal (vedoucí práce)
The subject of this these is a preparation and printing of upconversion marks that have been printed by two printing techniques, namely screen printing and pad printing. The makrs were designed to visualize another chemical code identifiable by instrumentation. The impact of chemical code components on the fluorescence intensity of upconversion marks and the impact of individual components on printability and print sustainability were studied. The upconversion pigment was excited by NIR laser.
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Ink formulation for chemical labels printing
Martiniaková, Ivana ; Krystyník,, Pavel (oponent) ; Veselý, Michal (vedoucí práce)
This diploma theses is about the study of the effect of individual components of printing compositions intended for material printing of identificaton codes, read by X-ray fluorescence. Two printing technologies were used – screen printing and pad printing. The composition of the print compositions has been optimized in term of visual recognition, print repeatability, a dry matter content providing an X-ray fluorescence signal, as well as optimization of the material print process leading to the creation of invisible identification tags for archive documents.
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Volba kamerového systému pro kontrolu kvality tisku
Kmec, Bartolomej ; Hejč, Tomáš (oponent) ; Houška, Pavel (vedoucí práce)
Toto bakalářská téma se zabývá možností kontrolování kvality potisku v tamponovém tisku. Tampónový tisk je řešen tak, že se potisk přenáší z klišé na potiskovaný materiál pomocí silikonového tamponu. Kvalita výsledného potisku je závislá na velkém množství faktorů, které jsou v práci analyzovány. V bakalářské práci je popsán způsob monitorování kvality potisku online za pomocí kamery na reálných vzorcích.
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Spectral analysis of chemical code
Šimončičová, Monika ; Ďurovič, Michal (oponent) ; Veselý, Michal (vedoucí práce)
The diploma thesis deals with the study of the process of grinding aggregates of particles of a mixture of powdered lanthanide oxides in the dowanol solvent. The formed dispersions were characterised and used for the preparation of printing inks and subsequently for the printing of labels with chemical codes readable by XRF spectrometry. The aim was to study the milling process, to verify the reliability of reading and recognition of marks with the appropriate codes and to monitor the influence of the additive of the up-conversion powder on the resulting relative intensities of the elements in the chemical code. The statistical significance of the differences in the averages of relative intensities was assessed based on the Student's t test.
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Optimization of chemical code printing with XRF identification
Uher, Tadeáš ; Ďurovič, Michal (oponent) ; Veselý, Michal (vedoucí práce)
The Master’s thesis deals with study printing and optimization of a chemical labels with a code readable by XRF technique. The study is focusing on the identifiability of components in chemical code through data analysis in the Origin program environment and reproducibility of the analysis. The responses of the XRF signal on real samples of historical documents were studied and possible interfering elements were identified. Based on these analyses, a recommendation was formulated for the method of evaluating the obtained data, code analysis and also for the composition of the printing formulation.
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Tištěný fotolektrochemický senzor modrého světla
Papák, Jiří ; Hatala,, Michal (oponent) ; Dzik, Petr (vedoucí práce)
Tato diplomová práce se zabývá fotoelektrochemickými senzory určené k detekci záření v modré oblasti viditelného spektra. Jako polovodivý materiál pro výrobu senzoru, byla použita suspenze oxidu wolframového. Jednotlivé prvky senzoru byly naneseny technikami tamponového tisku, nebo sítotiskem. Pomocí lineární voltametrie a chronoamperometrie byla proměřena velikost generovaného proudu a byla provedena radiometrická kalibrace. Vlastnosti vrstev byly charakterizovány profilometrií, optickým a elektronovým mikroskopem.
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Spectral analysis of chemical code
Šimončičová, Monika ; Ďurovič, Michal (oponent) ; Veselý, Michal (vedoucí práce)
The diploma thesis deals with the study of the process of grinding aggregates of particles of a mixture of powdered lanthanide oxides in the dowanol solvent. The formed dispersions were characterised and used for the preparation of printing inks and subsequently for the printing of labels with chemical codes readable by XRF spectrometry. The aim was to study the milling process, to verify the reliability of reading and recognition of marks with the appropriate codes and to monitor the influence of the additive of the up-conversion powder on the resulting relative intensities of the elements in the chemical code. The statistical significance of the differences in the averages of relative intensities was assessed based on the Student's t test.
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Optimization of chemical code printing with XRF identification
Uher, Tadeáš ; Ďurovič, Michal (oponent) ; Veselý, Michal (vedoucí práce)
The Master’s thesis deals with study printing and optimization of a chemical labels with a code readable by XRF technique. The study is focusing on the identifiability of components in chemical code through data analysis in the Origin program environment and reproducibility of the analysis. The responses of the XRF signal on real samples of historical documents were studied and possible interfering elements were identified. Based on these analyses, a recommendation was formulated for the method of evaluating the obtained data, code analysis and also for the composition of the printing formulation.
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Tištěný fotolektrochemický senzor modrého světla
Papák, Jiří ; Hatala,, Michal (oponent) ; Dzik, Petr (vedoucí práce)
Tato diplomová práce se zabývá fotoelektrochemickými senzory určené k detekci záření v modré oblasti viditelného spektra. Jako polovodivý materiál pro výrobu senzoru, byla použita suspenze oxidu wolframového. Jednotlivé prvky senzoru byly naneseny technikami tamponového tisku, nebo sítotiskem. Pomocí lineární voltametrie a chronoamperometrie byla proměřena velikost generovaného proudu a byla provedena radiometrická kalibrace. Vlastnosti vrstev byly charakterizovány profilometrií, optickým a elektronovým mikroskopem.
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