Original scientific paper This paper presents experimental usage of updated control methods such as thermovision and spectrophotometric analysis in graphic industry. These methods were applied to research the influence of ink volume and material characteristics on colour and heat treated printed substrates. Samples used in these experiments were printed by digital ink jet printing technique using Mimaki JV22 printing machine and J-Eco Subly Nano inks. As printing substrates, three different types of materials were used. Materials were different in respect of fabric weight and thread count, while material composition was the same for all three materials. The appropriate test card consisting of fields of CMYK colours was printed, varying the number of ink layers applied. Samples were exposed to heat treatment after printing. The heat applied was measured by thermovision camera. Spectrophotometric measurements were conducted before and after heat treatment. Based on data gathered by spectrophotometric measurements colour difference ΔE76 was calculated. Results showed that increasing number of layers, as well as right choice of substrates, can improve behaviour of printed product during exploitation.

High surface texture of textile materials appears rougher and more porous than other printing substrates which can cause excessive ink penetration. Also, high temperature thermal loads affect the characteristics of printed ink and cause structural changes of the textile substrate material as well. The aim of this paper is to determine the influence of thermal load on the print quality of cotton based fabrics with different knitting types via surface macro non-uniformity and line quality determination of the printed samples. The research results indicated that the thermal load had a negative influence on the line quality parameter and a positive effect on the macro non-uniformity parameter

Clothes are exposed to diff erent impacts during usages and maintenance. The more frequent impacts on textile materials are the washing processes and the perspiration eff ects. These mentioned eff ects are the causes of specifi c changes of the textile fi bres and on colour reproduction on printed materials. This paper presents research into the impacts of a series of washing and perspiration eff ects on the colour reproduction studied with a spectrophotometric analysis and the water retention capacities of the prints using the screen-printing technique. The research results indicate that with the increase in the number of washes, major changes occurred in the reproduced colours compared to the colours of the samples that did not undergo the process of washing. It was determined that, besides the series of washings, the perspiration effects also had an impact on the reproduced colour changes. The impacts were also affi rmed of printing and a series of washings on water retention on textile materials.

Theoretical backgrounds for the development of a university model of integrated teaching practicum (Teaching methodology of introducing children to the natural and social environment, and Methodology of teaching mathematical concepts formation) are learning about the holistic approach in the education of young children, as well as the pedagogical paradigm of an open preschool curricula and its co-construction. Through the analysis of data collected during this cycle within the framework of mix-method research, the paper is presented as a reflection of the implementation of the integrated teaching practicum. Quantitative data indicate a shift of students’ insights into their own teaching competences towards greater objectivity, and in a sense, restructuring of their theoretical knowledge. Qualitative analysis indicates a shift from the emotional components (particularly uncertainty and fear) which overwhelmed students at the beginning of the cycle, to a greater confidence in their relationships with young children. Integration contributes to a number of positive effects on the development of general and specific teaching competency as well as on the students’ self-confidence. On the other side, it raises new questions that need to be taken into account: primarily, it refers to the issue of the gap in “connecting” theory with/and practice, and equally, to the possibilities of students’ participation in decision-making within process in the next cycle of the action research.