Dokumentumok beadása http://hdl.handle.net/20.500.14044/1 2026-10-22T19:42:03Z 2026-10-22T19:42:03Z Csanák, Edit Nemes, Ineta Sós, Anita http://hdl.handle.net/20.500.14044/40964 2026-10-22T13:13:16Z 2020-01-01T00:00:00Z

Impact of the Covid-19 crisis on textile- and garment industry sector with focus on CEE and WB countries Csanák, Edit; Nemes, Ineta; Sós, Anita Csanák, Edit Covid-19 crisis has a significant impact on the textile and fashion industry worldwide. The impact of the coronavirus pandemic on textile manufacturers has been unprecedented. According to the latest reports, reducing sales, closed factories, and lower wages are just some of the problems. The economic downturn associated with the COVID-19 epidemic has posed challenges to the textile, clothing, and footwear industries. Companies, brands, and designers fight for their survival. This article attempts to give insight into some general facts of the impact of the COVID-19 pandemic on the textile- and garment industry sector worldwide and in some of the Central East European and West Balkan countries.; Covid-19 crisis has a significant impact on the textile and fashion industry worldwide. The impact of the coronavirus pandemic on textile manufacturers has been unprecedented. According to the latest reports, reducing sales, closed factories, and lower wages are just some of the problems. The economic downturn associated with the COVID-19 epidemic has posed challenges to the textile, clothing, and footwear industries. Companies, brands, and designers fight for their survival. This article attempts to give insight into some general facts of the impact of the COVID-19 pandemic on the textile- and garment industry sector worldwide and in some of the Central East European and West Balkan countries.

2020-01-01T00:00:00Z Gregász, Tibor Pál, Veronika http://hdl.handle.net/20.500.14044/40963 2026-10-22T12:53:18Z 2020-01-01T00:00:00Z

Quantifying risk of classification of protective textiles using measurement uncertainty Gregász, Tibor; Pál, Veronika Csanák, Edit Laboratories executing performance testing of protective textiles (e.g., CE marking of protective gloves) are obliged to evaluate measurement uncertainty. Currently, this is a challenging task due to the complexity of test methods. In our research, we define this parameter using a newly implemented model of error propagation and use it to assess the risk of performance level classification, which can be interpreted as the proportion of products failing to reach the expected limit value.; Laboratories executing performance testing of protective textiles (e.g., CE marking of protective gloves) are obliged to evaluate measurement uncertainty. Currently, this is a challenging task due to the complexity of test methods. In our research, we define this parameter using a newly implemented model of error propagation and use it to assess the risk of performance level classification, which can be interpreted as the proportion of products failing to reach the expected limit value.

2020-01-01T00:00:00Z Gregász, Tibor Pál, Veronika Göndör, Vera http://hdl.handle.net/20.500.14044/40962 2026-10-22T11:28:24Z 2020-01-01T00:00:00Z

Determination of measurement uncertainty in a complex testing process for textile tests Gregász, Tibor; Pál, Veronika; Göndör, Vera Csanák, Edit All standards dealing with colorfastness testing of textiles avoid the issue of measurement uncertainty. However, this does not exempt accredited testing laboratories from the obligation to assess the factors of measurement uncertainty required by ISO/IEC 17025:2017. This is where the abstract text comes. This is a sample. This paper identifies and classifies the uncertainty components of the most frequent textile colorfastness testing procedures. As the test method comprises chemical, mechanical, and visual elements, the results are subject to complex uncertainty factors. Using experimental data, measurement results, and their statistical evaluation, we inquire into factors that allow defining a numerical uncertainty value for the respective test method. The result obtained allows continuous improvement of the procedure.; All standards dealing with colorfastness testing of textiles avoid the issue of measurement uncertainty. However, this does not exempt accredited testing laboratories from the obligation to assess the factors of measurement uncertainty required by ISO/IEC 17025:2017. This is where the abstract text comes. This is a sample. This paper identifies and classifies the uncertainty components of the most frequent textile colorfastness testing procedures. As the test method comprises chemical, mechanical, and visual elements, the results are subject to complex uncertainty factors. Using experimental data, measurement results, and their statistical evaluation, we inquire into factors that allow defining a numerical uncertainty value for the respective test method. The result obtained allows continuous improvement of the procedure.

2020-01-01T00:00:00Z Csiszér, Tamás Oroszlány, Gabriella Kulcsár, Edina Borka, Zsolt Kormány, Eszter http://hdl.handle.net/20.500.14044/40961 2026-10-22T11:07:55Z 2020-01-01T00:00:00Z

Optimization of laser cutting of reinforced pvc sheet Csiszér, Tamás; Oroszlány, Gabriella; Kulcsár, Edina; Borka, Zsolt; Kormány, Eszter Csanák, Edit Composite sheets are widely used. These sheets are usually composites, consisting of a polymer matrix and fiber materials. Since there is a need for sheets in different sizes, they must be cut in parts. Several cutting technologies are used for this purpose, e.g., application of special knives, scissors, or water-jet. Besides their well-known benefits, there are some disadvantages, partly due to the direct connection between the tool and the material. To reduce, the application of laser beam cutting technology has expanded in the last decades. The purpose of our research was to test the application of a laser beam in cutting reinforced PVC sheet to find the optimal technology parameters. We found that a CO2 laser machine can cut PVC-PA composite sheets with acceptable edge quality. Optimal parameter setting is V = 100 mm/s cutting velocity and P = 30 W laser power. The experiments could not prove the correlation among line energy, edge quality, and area of HAZ. V has a significant effect on tensile strength with 20 and 30 mm/s. The maximum tensile strength is 868 N for warp cutting direction, which was produced by V = 25 mm/s.; Composite sheets are widely used. These sheets are usually composites, consisting of a polymer matrix and fiber materials. Since there is a need for sheets in different sizes, they must be cut in parts. Several cutting technologies are used for this purpose, e.g., application of special knives, scissors, or water-jet. Besides their well-known benefits, there are some disadvantages, partly due to the direct connection between the tool and the material. To reduce, the application of laser beam cutting technology has expanded in the last decades. The purpose of our research was to test the application of a laser beam in cutting reinforced PVC sheet to find the optimal technology parameters. We found that a CO2 laser machine can cut PVC-PA composite sheets with acceptable edge quality. Optimal parameter setting is V = 100 mm/s cutting velocity and P = 30 W laser power. The experiments could not prove the correlation among line energy, edge quality, and area of HAZ. V has a significant effect on tensile strength with 20 and 30 mm/s. The maximum tensile strength is 868 N for warp cutting direction, which was produced by V = 25 mm/s.

2020-01-01T00:00:00Z