The use of sublimation thermal transfer printing onto cotton is not widely practiced because of the lack of disperse
dyes affinity for cellulose fibres. The studies were performed onto polymer application on cotton fibres in order to
achieve the ability to absorption of sublimating dyes and thus the possibility of making printouts onto cotton. The
following parameters were evaluated: whiteness degree after impregnation, the relative strength of colours of the
obtained printouts, test washing fastness, and dry and wet rubbing fastness.
The paper presents some possibilities of measuring light passed through textile products applicable as sunshade window curtains. The existing measurement methods were analysed and a new method for measuring the barrier properties and transparency of flat textile products was proposed based on linear measurement. The idea of measurement was established for the purpose of identifying the optical properties of blackout fabrics applied as internal screens for public interiors. Preliminary research has shown that blackout fabrics obtained by weaving technology – so called weaving blackout (not a coated blackout) have a varied structure. In this case, the characteristics of this structure determine the level of barrier properties. The mechanism of light passing through such structures is special and requires specific measurement conditions. The paper presents an original research methodology dedicated especially for blackout fabrics. The new methodology and indicators for assessing the barrier effect in the VIS radiation band can be adopted by industry.
The purpose of high visibility products is to reflect light at a low angle towards the source, such as vehicle headlights. The article presents measurements of the photometric properties of selected retroreflective materials made either of microlenses on a textile base or microprisms on a polymer base. The effects of the structure of the textile and polymer layers on the photometric properties of high visibility materials is analysed and the test methods applied are described.
The article describes the importance of dimensional allowances, which are a consequence of the use of personal protective equipment (PPE) for work safety. The method of 3D scanning was proposed for determining the dimensional allowances which has been preliminary validated. Two geometric solids (a cylinder and a cuboid) were used to approximate the minimum space around the person using PPE. The solids are a simplified representation of the silhouette of a human subject performing activities in a confined work environment. They also correspond to the typical shapes of access openings and confined spaces, reflecting the real working conditions of welders, firefighters, mine rescuers, and other rescue teams. A detailed analysis of dimensional allowances for a full welding PPE set is provided. Based on the adopted parameters: the dimensions of the body, the base area and the volume, the differences in the dimensions of the body of a person dressed in underwear and in PPE were compared. The results of the presented studies indicate a significant role of dimensional allowances in interactions between persons wearing PPE and the work environment. The results are planned to be implemented in a new anthropometric atlas of human’s measures used for ergonomic design.
W artykule omówiono zagadnienie związane ze zmianą wymiarów zewnętrznych opisujących sylwetkę człowieka, związanych z jego wyposażeniem w środki ochrony indywidualnej. Zmiany tych wymiarów określono jako naddatki do miar antropometrycznych człowieka oraz naddatki wymiarowe, wynikające ze stosowania środków ochrony indywidualnej. Zdefiniowano naddatki wymiarowe oraz naddatki do miar antropometrycznych, a także wykazano ich znaczenie w kształtowaniu ergonomicznego środowiska pracy.
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