Investigation of the Usage Characteristics of Environmentally Friendly Water-Repellent Chemicals on Cotton Fabrics: Improving sustainability of surface coatings

Fabrics with water-repellent properties are widely valued in the textile industry. It is known that fluorocarbon compounds, which are widely used for this purpose, are harmful to the environment. Therefore, within the scope of this study, a water-repellent chemical that does not contain fluorocarbon compounds was used to treat 100% cotton fabrics and compared with fluorocarbon compounds. The results show that the environmentally friendly chemical is at least as effective as the fluorocarbon compounds. According to the spray test, water repellency at ISO 5 level was obtained. In addition, the fabrics’ usage properties were assessed and high water vapour permeability, air permeability and low bending stiffness (280 mg cm) were obtained. This has yielded important results in terms of sustainability and the potential for eliminating the use of fluorocarbons for this application

TRANSFERRING LIPOSOMES CONTAINING MOISTURIZING MORINGA OIL TO WASHABLE MASKS NEMLENDİRME ÖZELLİĞİNE SAHİP MORİNGA YAĞI İÇEREN LİPOZOMLARIN YIKANABİLİR MASKELERE AKTARILMASI

Within the scope of this study, it is aimed to transfer moringa oil, which is widely used in the cosmetic industry with its moisturizing feature, to 100% cotton and washable masks with liposomes in order to reduce the discomfort caused to the skin by the masks that entered our lives with the pandemic. For this purpose, 3 different concentrations of liposomes containing moringa oil were produced and optimization studies were carried out by SEM and particle size analysis. After determining the optimum recipe, the obtained liposomes were transferred to the masks by the impregnation method. In order to detect the presence of moringa oil in the masks, GC analyzes were performed. In order to examine the washing resistance of the masks, they were subjected to 5 washings and their usage properties were examined with water resistance and water vapor permeability tests. As a result of the analyzes, it was determined that the liposomes containing moringa oil were successfully transferred onto the masks and were resistant to 5 washings. According to the results of GC-MS analysis, it was determined that the basic components of moringa oil persisted on the masks even after 5 washes. It was observed that the transferred liposomes did not have a negative effect on the water vapor permeability and waterproofing properties of the fabric

Encapsulation of helichrysum oil with inclusion complex and investigation of antibacterial activities in cotton fabrics

Purpose: The aim of this study was to prepare antibacterial capsules and transfer them to cotton fabrics using the impregnation method. Design/methodology/approach: For this purpose, helichrysum oil was encapsulated by ß-cyclodextrin (ß-CD) using the kneading method at three different molar ratios. The products were then applied to 100% cotton fabric through the impregnation method. Findings: Morphological assessment showed that the inclusion complex had smooth surfaces and spherical shapes. Fourier transform infrared spectroscopy and differential scanning calorimeter analysis results confirmed the formation of the inclusion complex between ß-CD and the active agent at mole ratios of 1:1, 1:2 and 1:3 for helichrysum oil. According to the analyses, it was determined that the highest complexing rate was between 9.72% and 1:2 in capsules containing ß-CD:helichrysum oil and the sizes of particles which is 1:2 are determined to be between 2 and 25 µm. The presence of capsules on the fabrics was determined after 5 washing cycles. Antibacterial activity was evaluated against Staphylococcus aureus and Escherichia coli bacteria. The antibacterial analysis results showed that the inclusion complex provided a reduction of over 96% against both S. aureus and E. coli bacteria, and the fabrics exhibited antibacterial effects even after 5 washing cycles. The major constituents of the oil were decreased after 5 washes, but significant peaks were remained according to the gas chromatography analyses. These results indicate that helichrysum oil can be used for its antibacterial properties, and it has been observed that this activity continues up to 5 washes when transferred to the fabric in the form of an inclusion complex. Originality/value: Although helichrysum oil is widely used in cosmetics, there is a lack of studies on its application in textiles. Therefore, this study investigated the potential use of helichrysum oil, which has a wide range of applications, in textiles for its antibacterial properties through molecular encapsulation. The use of naturally sourced substances such as helichrysum oil in the textile industry can offer an environmental and sustainable alternative. This study can be considered as a step toward the development of innovative and naturally sourced antibacterial products in the textile industry

Disposable mask design for odor pollution in the work environment

Ambient scent is very important for work environment. Scent is so important is due to the vital function of our breathing. People working in a fragrant environment can work much more efficiently. In odor pollution environments, the work desire of employees leads to decrease markedly. Many companies do have a scent apparatus. However, due to the high tempo of intense working conditions and work, companies are not paying attention to this issue. Therefore, 30% of the apparatus are not being used effectively. Odor pollution masks have become preferably those working in such areas. In this study, we determine the discomfort due to bad smell and we have designed a mask in order to reduce inefficiencies. For this purpose liposome microcapsules encapsulating agents have been produced and limonene material was capsulated. These capsules were transferred to nonwoven masks with the polyurethane binder and impregnation process. The performance qualifications such as encapsulation success, presence of core substance and existence of the capsules on the textile surface are determined by SEM, TGA, FT-IR, DSC, GC analyses and particle size measurement. Results show that, limonene encapsulated liposome microcapsules are bounded by chemical bonds to the disposable nonwoven masks

Modifying of UHMWPE fishing nets with layer-by-layer deposition method for antifouling properties

The nanoparticles-based, multilayer, nanocomposite films ZnO, Cu2O, zinc borate, and Econea(R)were fabricated on cationized ultra-high molecular weight polyethylene (UHMWPE) fishing nets using a layer-by-layer molecular self-assembly technique. For the cationic surface charge, the UHMWPE fishing nets were pretreated with polyethyleneimine using the dip-coating method. Scanning electron microscopy and energy-dispersive X-ray spectroscopy were used to examine the nano-ZnO, Cu2O, zinc borate, and Econea(R)multilayer films deposited on the fishing nets. The fishing nets were placed in a fish farm located in the Aegean Sea for 6 months. The nano-Econea(R)films exhibited excellent antifouling activity against microorganisms. To evaluate the effect of the process on antifouling properties, physical tests of the nets were conducted before and after the nanoparticle treatment. The strength of the nets and fouling organisms were examined after the field study