The surface of textile materials is highly textured, commonly in non-uniform ways. Because of this texture effect, textile surface appears rougher and more porous than other printing substrates, which can cause excessive ink penetration during printing process. Next, washing process is very important factor because it influences ink characteristics on printed samples as well as structural changes of the textile substrate. The aim of this paper is to determine the influences of washing process and different mesh tread count used for printing on print quality. This will be obtained by using spectrophotometric analysis, and GLCM image processing method for print mottle estimation. The results of this research show that increasing number of washing processes leads to higher color differences reproduction color in comparison to printed materials before washing. It also shows that textile surface texture has a great influence on print mottle as well as that number of washing treatment series can generate variations of solid-tone print uniformity.

Textile materials are increasingly being subjected to the process of printing. The printing process with its parameters significantly affects the properties of textile materials and clothes made from these materials. This paper examines the effect of the parameters of digital printing on thermo-physiological characteristics of printed textile materials. As the essential print parameters were selected tone value and a different number of passes. In this research were used knitted fabric materials of 100% cotton fibers (100% CO), 100% polyester fibers (100% PES) and their mixture (50%CO/50% PES). The influence of print parameters to thermo-physiological properties of the material is evaluated through a warm or cold feeling and heat retention ability. Results of the research demonstrated that, in addition to material composition, the printing process with its parameters have a significant influence on the thermo-physiological characteristics of textile materials.

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.

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

In addition to printing techniques, there are various characteristics that affect the quality of printed products. Most frequently questioned features are line, dot, and text reproduction. In this paper it is investigated how different substrates, printed by the same printing technique, affect the quality parameters of printed samples. Print quality includes the process of obtaining the desired reproductions of color and image elements, important parameters of print quality are the quality of lines and dots, and the feature of the substrate that is significant for this work is the roughness of the substrate. This paper presents the testing of three different materials on to which the test form was printed by electrophotography, as a digital printing technique. The tests are based on analysis of line, dot and text reproduction, as well as analysis of the roughness of the substrate on samples printed in black. Based on the obtained results it can be concluded that the substrate affects the quality of printed products.