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Cotton fabric bearing β-cyclodextrin and cationic moieties were prepared using different techniques and reaction conditions. Monochlorotriazinyl-β-cyclodextrin (R-CD) and 3-chloro- 2-hydroxypropyl trimethyl ammonium chloride (Quat-188) were employed to introduce the cyclodextrin ring and cationic group respectively to cotton cellulose. The first reaction technique that was studied involved the reaction of cotton fabric with R-CD, followed by the cationization of the treated fabric with Quat-188. In the second technique, cationized cotton fabric was allowed to react with R-CD. In the third technique, cotton fabric was reacted with RCD and Quat-188 simultaneously in one step. The factors affecting the extent of the reaction in each technique were investigated, including the concentration of alkali, the reaction temperature, the duration of the reaction, as well as the R-CD and Quat-188 concentrations. The extent of the reaction was monitored to determine the nitrogen content. The results obtained revealed that treating the cotton fabric with R-CD and Quat-188 causes the cotton fabric to have R-CD rings and that cationic group depends on the sequence of processes and reaction conditions. It was found that, at the same Quat-188 and R-CD concentrations, cationized cotton fabric display higher reaction efficiency with R-CD than that reported when R-CD treated cotton fabric was cationized using Quat-188. Moreover, no alkali is required to achieve the reaction between R-CD and pre-cationized cotton fabric, while the reaction of both R-CD and Quat-188 with cotton fabric requires the use of 30 g/l Na₂CO₃ and 35 g/l NaOH, respectively.

Examines the seventeenth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.

The purpose of this study was to prepare alginate and chitosan-based edible coatings incorporating Schinus terebinthifolia and Piper nigrum essential oils. The prepared films were applied on minimally processed pineapple to study the microbial inhibition of Gram + and Gram – bacteria and fungi and to evaluate the shelf life of the minimally processed fruit.

In this study alginate and chitosan-based edible coating were prepared and applied on minimally processed pineapple. The edible coatings were evaluated microscopically, by the power of reducing microbial contamination, by the shelf-life improvement.

This study demonstrates that the incorporation of the essential oils P. nigrum and S. terebinthifolia contributed to the inhibition of all the microorganisms studied and improved the shelf life of minimally processed pineapple. This is especially true for P. nigrum in the chitosan-based edible coating, where the shelf life was improved by 45 days.

Because of the pandemic, it was not possible to perform the sensory analyses of the antimicrobial alginate and chitosan-based edible coatings prepared.

From the results obtained, it is possible to state that the antimicrobial alginate and chitosan-based edible coatings incorporating S. terebinthifolia and P. nigrum essential oils can be used on minimally processed fruits and prolong their shelf life.

Due to the lifestyle of modern consumers, who demand speed and practicality and the need to consume fruits for health and quality of life, minimally processed fruits covered with edible coatings incorporating natural antimicrobial additives can provide a practical solution.

To the best of the authors’ knowledge, this is the first time that alginate and chitosan-based edible coatings that incorporate P. nigrum and S. terebinthifolia applied on minimally processed fruit, have been studied.

Examines the sixteenth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.

Examines the twelfth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.

Examines the eleventh published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.

This work was focused upon the main factors that influence the formation of a hydroxypropyl-β-cyclodextrin (HP-β-CD) supramolecular complex with octadecylamine (ODA) and their optimal processing conditions. The anti-corrosion properties of the products in the simulated boiler water condensate of power plants also needed to be tested. The paper aims to discuss these issues.

A grinding method was applied to synthesize the supramolecular structures. Using Fourier transform infrared, X-ray diffraction and proton nuclear magnetic resonance spectroscopy (1H NMR), the specific structures of the complex were clarified. The anti-corrosion properties were obtained from gravimetric results, potentiodynamic polarization tests and electrochemical impedance spectroscopy measurements.

The results reveal the highly soluble supramolecular complex could be formed between two HP-β-CD molecules and one ODA molecule at 85°C with a processing period of 15 minutes. In the condensate, the corrosion inhibition efficiency of the complex was over 95 percent, much higher than the inhibition efficiency of the hydrophobic ODA compound.

The supramolecular corrosion inhibitor could be used as an anti-corrosion method for industrial boiler condensate to reduce the content of corrosive ions. In this way, it is easier to reuse the condensate without re-polishing.

The research introduces supramolecular chemistry into corrosion science for the first time. The results provide a new option to modify the traditional corrosion inhibitors.

The aim of this study was to prepare antibacterial capsules and transfer them to cotton fabrics using the impregnation method.

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.

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.

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.

Sensory analysis shows that the addition of 0.4 per cent (w/v) of the macrocyclic β‐cyclodextrin (βCD) to goat’s milk improves the flavour and reduces its goaty taste, due to encapsulation of molecules responsible of this flavour. In vitro studies of the inclusion of formed complexes between βCD and short‐chain fatty acids, caprylic (C₈...) and capric acid (C₁₀...), were carried out by differential scanning calorimetry (DSC) and proton magnetic resonance (...¹HNMR). Complex formation was confirmed by DSC, through the disappearance of the signs due to melting of C₁₀ and C₈ after the encapsulation process. The ¹H NMR technique shows that C₁₀... is included in the βCD cavity. The results suggest that βCD can encapsulate short‐chain fatty acids, making possible its use for masking of these compounds in goat’s milk and derivatives.

This study aims to synthesize new disperse dyes based on novel pyrazolyl quinolinone derivatives EQ1 and EQ2 and evaluate their characteristics after dyeing them on a polyester fabric.

New dispersed dyes based on pyrazolyl quinolinone derivatives were prepared and confirmed by different analyses, such as infrared spectroscopy, elemental microanalysis and nuclear magnetic resonance spectroscopy. They were dyed on a polyester fabric. The characteristics of dyed polyester were determined by color measurements such as a*, b*, L*, C*, E, Ho, R% and color strength. The electronic structures of EQ1 and EQ2 in gaseous state were investigated using density functional theory/B3LYP/6-311++G (d, p) level of theory.

The suitability of the prepared dyestuffs for dyeing on polyester fabrics has been investigated. The study was concerned with comparing the contrasting depth of shade and levelness. The study was concerned mainly with dye uptake and color measurements at two different temperatures. The results showed that the exhaustion values of dyes inside the polyester at 130°C were higher than those obtained at conventional dyeing temperature (100°C). The exhaustion values of EQ2 were greater than those of EQ1 at 130°C with 2.2%, while the brightness of EQ2 was higher than that of EQ1 at the two investigated temperatures. The results of molecular orbital calculations show that the studied compounds are planar. In addition, the ionization potential of EQ1 was lower than that of EQ2. The results of the theoretical study helped in understanding the dyeing behavior of the investigated azo dyes.

The prepared disperse dyes based on pyrazolyl quinolinone derivatives could be used in textile dyeing of polyester on an industrial scale.