Browsing by Author "Akca C."

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    Use of different natural dye sources for printing of cotton fabrics
    (Ege Universitesi, 2017) Ibrahim Bahtiyari M.; Benli H.; Yavaş A.; Akca C.
    In the study it was aimed to print cotton fabrics with natural dye sources to respond the demands on the natural products and cleaner production. For this purpose, bleached, bleached and mercerized cotton fabrics were colored by pigment printing method with the use of the extracts obtained from the five different natural dye sources "pomegranate peel, nutshell, orange tree leaves, alkanet roots and dyer's chamomile". By this way it was planned to show the coloration of cotton with natural dye sources. For the environmentally friendly production, no mordanting has been applied but good colors with sufficient fastnesses were observed from the printed fabrics nonetheless. In printing process, binder was used instead of mordanting agents for the fixing of the dye stuff. Like in other dyeing and printing processes, it was found that pretreatment processes had an effect on the printability of cotton with natural dyes. By mercerization higher color efficiencies, darker shades and meanwhile increases in light fastnesses and decreases in washing and perspiration fastnesses were generally obtained.
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    A new method: The usage of natural zeolite as a killer chemical for hydrogen peroxide during the hydrogen peroxide bleaching; [Metodã nouã: utilizarea zeolitul natural pentru eliminarea chimica a peroxidului de hidrogen în timpul albirii]
    (Inst. Nat. Cercetare-Dezvoltare Text. Pielarie, 2019) Akca C.
    In the study, the usage possibility of natural zeolite as hydrogen peroxide killer during the hydrogen peroxide bleaching was investigated. Natural zeolite from Gördes region with 30 ¡jm particle size was used during the hydrogen peroxide bleaching of the cotton fabric as a hydrogen peroxide killer agent. ICP-MS elemental analysis of the natural zeolite was performed. Hydrogen peroxide concentration of the bleaching liquor was performed by quantitative analysis. It was seen that natural zeolite is so efficient to decrease in hydrogen peroxide concentration in the bleaching bath. It is thought that natural zeolite can be an alternative to antiperoxide enzymes and the other hydrogen peroxide killers which are commonly used in the industry. © 2019 Inst. Nat. Cercetare-Dezvoltare Text. Pielarie. All rights reserved.
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    Antimicrobial textiles for the healthcare system
    (Elsevier, 2023) Bahtiyari M.; Körlü A.; Akca C.
    Textiles are unique materials that can serve several different benefits to the user. They have different usage areas, from personal and fashion-oriented uses to technical purposes. They have changed and continue to change with time and culture. Nevertheless, it is not easy to find a different material that can replace textiles. It is therefore easy to see textiles in different areas. One of the most important uses is for medical purposes. Thus, this chapter intends to summarize antimicrobial textiles, especially antimicrobial textiles in healthcare systems. For this purpose, this chapter has given information about “Textiles in Healthcare Systems” and “Antimicrobial Textiles” within the framework of our perspective. © 2023 Elsevier Ltd. All rights reserved.
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    Synthesis of imidazole derivatives and their immobilization to wool fabric to impart antibacterial properties
    (Springer Science and Business Media Deutschland GmbH, 2024) Akca C.; Mutlu Gürgen N.; Ateş M.; Demiç Ş.
    The increasing awareness of health and hygiene issues, coupled with epidemics and rising living standards, has fueled a growing interest and demand for antibacterial textiles. While various chemicals are utilized in the production of antibacterial textiles, metal salts and nano metal particles, particularly silver compounds, are also commonly employed. Silver salts, due to their ionic structure, often result in a rapid release of silver in water, leading to a short-term, high antibacterial effect. In contrast, N-heterocyclic carbene (NHC) complexes offer a unique advantage by providing long-term, high antibacterial activity through the gradual release of silver ions. This is facilitated by the bond formed between wool and NH2 groups, rendering the fabric resistant to light. In this study, we conducted the synthesis of N-heterocyclic carbene (NHC) complexes and successfully immobilized these compounds onto wool fabric. The outcome of this research is the production of antibacterial wool fabrics exhibiting prolonged high antibacterial activity even after 50 washing cycles, while remaining resistant to light. Notably, N-heterocyclic carbene (NHC) complexes, commonly used in pharmacology, have not been explored for imparting antibacterial properties to wool fiber prior to this study. The study is original in this aspect. © The Author(s), under exclusive licence to the Institute of Chemistry, Slovak Academy of Sciences 2024.