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Barrier properties of varnishes for protection of photographs
Lokotschová, Radka ; Čeppan, Michal (referee) ; Veselý, Michal (advisor)
In this diploma thesis the basic principles of inkjet print, ink composition, print media and degradation mechanisms of ink dyes are summarized. The thesis deals with study of varnish barrier properties in coloured inkjet prints. Permeability of water vapour and oxygen (parts of atmosphere) depending on different coatings are tested there. In addition the influence of ozone on degradation of dyes was studied, while ozone was permeating through barrier varnish layer of inkjet print. Ozone plays an important role in degradation processes of the inkjet prints and it also causes a gas-fading. Concentrations of acting ozone were established by iodometric titration. Simultaneously kinetics of degradation of Orange 7 was studied on indicator papers.
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Ozone gas-fading of photographs
Védlová, Petra ; Kozáková, Zdenka (referee) ; Veselý, Michal (advisor)
This bachelor thesis deals with principels of inkjet printing, ink composition and print media. The paper also focuses on stability of inkjet prints, degradation of inks by ambient impacts, mechanisms of such degradations and protection against degradation. The experimental section examines the impact of ozone on gas-fading of injekt prints, which is one of the most important factors by degradation of dyes for both clasic prints and prints with protective varnish. In conclusion two methods for assessing dye degradation – colorimetric (by calculating the volume of the color gamut) and densitometric (by calculating optical densities) – are investigated and compared.
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Design of Lacquer Thickness Meter
Rzyman, Michal ; Sládek, Josef (referee) ; Rubínová, Dana (advisor)
This bachelor thesis deals with the design of a device designed to measure the thickness of the paint. The aim of the thesis is to design a device that is visually attractive and has a well-designed ergonomics. The result of the work is a hand-held device that comes out of the shape of a pen. The grip parts are designed from soft plastic and the buttons are appropriately spaced. The whole device is designed in an elegant shape inspired by the automotive industry. Particular benefits for this area can be, above all, these things. Compact shaping, using the latest technology, namely USB type C, electronic gyroscope or Transreflex LCD display. The overall benefit of the work is a different new look at the traditional design and the whole concept of measuring devices.
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Surface treatment of car body
Talafa, Michal ; Kandus, Bohumil (referee) ; Kubíček, Jaroslav (advisor)
In this work, the theory describes modifications to the car bodies, especially their finishes. Thus pretreatment before the coating lacquer layers. There are described the types of pre-treatment such as degreasing and corrosion protection. Also deals with the coating, and their functions and applications to the car body. Since the body does not consist only of metal, there is another part of the work focused on the plastics that are used and their painting.
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Degradation of painted components due to chemical compounds exposure
Vodák, Martin ; Kaluža, Zdeněk (referee) ; Tokař, Stanislav (advisor)
This diploma thesis deals with level of degradation of coating layers of car body by contact with chemicals in agreed time periods. First part is focused on surface pre-treatment and coating process in automotive industry. Description of coating materials is following. The last point of first part is focused on alternative coating technology – powder coating what is raising in customers´ focuses because of higher repeatability of powder cloud. The experiment is focused on coating degradation influenced by seven types of chemicals (petrol, diesel, AdBlue, washer fluid, salt liquid, Coca-Cola, alcoholic liquid) what car users meet every day. Testing samples were two bonnets. One was localized inner and another outside. Degradation of coating layer thickness was a long-time term and we measured connection between time of contact and used chemical. Based on such results we were able to determinate level of damage.
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The Effect of the Time of Bird Droppings Remaining on the Vehicle Body on the Damage Degree of the Paintwork
Bílek, Tomáš ; Kaluža, Zdeněk (referee) ; Bradáč, Albert (advisor)
This diploma thesis deals with the issue of the degree of damage done to the vehicle‘s body paint varnish by bird droppings; with respect to the influence of the pollution time on the thickness of the layer of lacquer. The first chapter deals with the importance of varnish and other layers of body protection, types of body varnish damage, painting technology, lacquer defects, bird droppings and its effects on the varnish of the vehicle‘s body. The second chapter is dedicated exclusively to the description, planning and measurement of the coated layers on the vehicle’s body contaminated with bird feces.
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Degradation of painted components due to chemical compounds exposure
Vodák, Martin ; Kaluža, Zdeněk (referee) ; Tokař, Stanislav (advisor)
This diploma thesis deals with level of degradation of coating layers of car body by contact with chemicals in agreed time periods. First part is focused on surface pre-treatment and coating process in automotive industry. Description of coating materials is following. The last point of first part is focused on alternative coating technology – powder coating what is raising in customers´ focuses because of higher repeatability of powder cloud. The experiment is focused on coating degradation influenced by seven types of chemicals (petrol, diesel, AdBlue, washer fluid, salt liquid, Coca-Cola, alcoholic liquid) what car users meet every day. Testing samples were two bonnets. One was localized inner and another outside. Degradation of coating layer thickness was a long-time term and we measured connection between time of contact and used chemical. Based on such results we were able to determinate level of damage.
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Návrh projektu zavedení renovačního pracoviště
Klíma, Ondřej
The thesis entitled "Project design for implementation of renovation workplace" deals with the project management tools applied to project of setting up a limited liability company that deals with the renovation of motorcycle veterans. To help the future owner of the company fully clarify the aim and intent of the newly set up company a pilot project for the renovation of the Jawa 250/559 motorcycle also known as the "Panel" has been designed. The emerging company was tested in order to verify if it is able to compete in the industry. The reason for choosing the varnishing activity was that the top enamel and varnish tell potential buyers how well the machine was refurbished. The motorcycle lacquer accounts for 70% of the first impression of the motorcycle.
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Degradace laku atmosferickým a mechanickým opotřebením
Drda, Tomáš
Diploma thesis Automotive paint degradation by atmospheric and mechanical wear discusses the ways of wear and damage of car paints, including assessment of environmental impact. It deals with coating systems of vehicle body with focus on clearcoat layer. In the context of the topic, it explains the renovation method that restores the original clearcoat layer to the original condition. It statistically verifies the increase in gloss of clearcoat layer and its thickness loss.
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Design of Lacquer Thickness Meter
Rzyman, Michal ; Sládek, Josef (referee) ; Rubínová, Dana (advisor)
This bachelor thesis deals with the design of a device designed to measure the thickness of the paint. The aim of the thesis is to design a device that is visually attractive and has a well-designed ergonomics. The result of the work is a hand-held device that comes out of the shape of a pen. The grip parts are designed from soft plastic and the buttons are appropriately spaced. The whole device is designed in an elegant shape inspired by the automotive industry. Particular benefits for this area can be, above all, these things. Compact shaping, using the latest technology, namely USB type C, electronic gyroscope or Transreflex LCD display. The overall benefit of the work is a different new look at the traditional design and the whole concept of measuring devices.
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