Yazar "Bayramoğlu E.E." seçeneğine göre listele
Listeleniyor 1 - 5 / 5
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe DYEING OF NATURAL LEATHER WITH THE USE OF PLANT EXTRACT; [???????? ??????????? ???? ? ??????????? ????????????? ?????????](Ivanovo State Polytechnic University, 2023) Mirzamuratova R.S.H.; Kaldybayev R.T.; Bayramoğlu E.E.In this studies, the composition and coloring properties of onion peels, methods of application as dyes in leather production are considered. Onion peels is a residue of food production. In the leather industry, the use of onion peels as a dye protects the environment from an ecological point of view and reduces the amount of chemicals contained in the leather. The study considered a method for obtaining natural extract from onion peels. The composition of the extract prepared from onion peels using a liquid hybrid (Q-TOF) LCMS-9030 mass spectrometer was determined. It was found that the extract prepared from onion peels contains the dye quercetin and other substances. The Otto Specth Bally Finish Tester was used to assess the strength of the paint. As a result of the analysis, the sample stained with onion peels extract showed a good result. © 2023 Ivanovo State Polytechnic University. All rights reserved.Öğe THE EFFECT OF NATURAL EXTRACTS ON THE STRENGTH OF LEATHER; [??????? ???????? ?????????? ?? ????????? ????](Ivanovo State Polytechnic University, 2023) Mirzamuratova R.S.H.; Kaldybayev R.T.; Bayramoğlu E.E.; Temirshikov K.M.; Baiseitova I.S.This article discusses ways to improve the strength of leather materials. The experiments were conducted on the basis of «Turan-Skin» Company. Chrome-tanned cattle leather was used for the study. Natural extracts from onion peels, oak bark, and walnut shells were used as natural dyes. The process of preparation of natural extracts and methods of application them in leather finishing instead of a chemical pigment, have been studied. The finishing of the leather was carried out by spraying. The physical and mechanical characteristics of leather materials have been studied. The article presents analysis of the influence of technological parameters on the processing of leather materials using indicators of physical and mechanical properties such as: breaking load, elongation at break, average tearing load. Three types of control sample were used for comparative analysis: a sample with the use of chemical pigment, a sample with the use of water, and a sample without finishing. The analysis of the experimental results shows a significant improvement in the physical and mechanical properties of the leather after the use of herbal extracts. © 2023 Ivanovo State Polytechnic University. All rights reserved.Öğe Investigation on reducing chromium quantity in chromium containing wastes from leather industry using oyster mushroom (pleurotus ostreatus)(American Leather Chemists Association, 2020) Bayramoğlu E.E.; Özçelik A.; Çetin M.; Eren E.In the leather industry, the wastes after the wet blue phase, which are created by the shaving process, are one of the substances that cause environmental pollution. Most of the time, these wastes are buried and may, under some circumstanses, cause serious environmental pollution problems. In this study, the chromium in wet blue shaved waste is to be minimized by using oyster mushrooms (Pleurotus ostreatus). Wet blue shaved wastes were mixed with 0.5%, 1%, 1.5% and 2% doses into the growth medium. After the oyster mushroom growth, the consumption of chromium from the growth media and uptaken by the mushrooms were investigated with Ege University Argefar Lab.'s House Method using a ICP-MS. © 2020 American Leather Chemists Association. All rights reserved.Öğe Investigation on reducing chromium quantity in chromium containing wastes of leather industry using oyster mushroom (Pleurotus ostreatus)(Verein fur Gerberei-Chemie und -Technik e. V. (VGCT), 2019) Bayramoğlu E.E.; Özçelik A.; Çetin M.; Eren E.In the leather industry, the shaved wastes after the wet blue phase, which are exposed by the shaving process, are one of the substances that cause environmental pollution for the leather industry. Most of the time, these wastes can be buried and may cause serious environmental pollution. In this study, wet blue shaved wastes to be mineralized to chromium and so prevented oxidise to Cr (VI) by using oyster mushrooms (Pleurotus ostreatus) .Wet blue shaved wastes were mixed with 0,5%, 1%, 1,5% and 2% doses into the growth medium. After the oyster mushroom growth, the consuming of chromium from the growth media and chromium content that uptaken by the mushroom were investigated with in House Method/ICP-MS. © 2019 VGCT.Öğe A research on the use of aluminum sulphate in parchment production and its effects on ageing and color(Verein fur Gerberei-Chemie und -Technik e. V. (VGCT), 2019) Kolan N.K.; Bayramoğlu E.E.In this study, different proportions 2.5%, 5%, 10% of Aluminum sulfate were used as tanning agents during parchment production. The research was carried out on goat skin and also there were no usage of any tanning agents as control groups. Finished leathers have been exposed to ageing conditions. Before and after ageing color measurements on all finished leathers have been conducted with Konica Minolta CM-3600d brand spectrophotometer. The impacts of the aluminum sulfate utilized in the research on light fastness were also inspected by using an ATLAS-XENOTEST ALPHA+ test instrument. Visible whitening on the color of parchment was observeded when tanning process with aluminum sulphate was performed. © 2019 VGCT.
