A novel polymeric flame retardant with phosphorous–nitrogen synergism (PVP (PR)-P-DCDA) was synthesized by polyvinyl alcohol, hydrophilic polyester resin, phosphoric acid, and dicyandiamide. 100% polyester, 100% cotton, and 50/50% cotton–polyester blended fabrics were treated with PVP (PR)-P-DCDA by impregnation method. Flammability characteristics, thermal decomposition, surface morphology, and chemical structure of treated and untreated fabrics were investigated by vertical flammability test, limiting oxygen index, differential scanning calorimetry, thermogravimetric analysis, scanning electron microscopy, and Fourier-transform infrared, respectively. Results showed that PVP (PR)-P-DCDA is an eco-friendly flame retardant system, a good char-forming flame retardant agent with superior ease of application for cotton, polyester, and cotton/polyester blends. At the industrial scale, the flame retardant agent PVP (PR)-PDCDA has been commercialized under the name Fire-off EBR.

In this study, velour design molded automotive carpets made of recycled polyethylene terephthalate (PET) fibers were developed via needle-punching process to improve their abrasion resistance properties. Initially, virgin PET fibers and recycled PET (rPET) fibers derived from PET bottle wastes were supplied from different producers and they were tested in terms of their fiber properties such as fiber length, crimp, tensile strength, elongation, tenacity, and intrinsic viscosity. It was demonstrated that recycled fibers from bottle wastes used in the study have lower tenacity and higher elongation than virgin PET fibers. In the second part, rPET fibers to be used in manufacturing in terms of their desired properties were selected. Subsequently, molded automotive carpets were produced from the selected rPET fibers and virgin PET fiber blends with adjusted manufacturing and molding parameters. Developed carpets were tested for abrasion resistance performance and they were evaluated according to requested specification. Results showed that carpets made of 85% rPET + 15% bicomponent PET had almost equal performance in terms of both fiber loss and carpet appearances with carpets consisting of 80% PET + 20% bicomponent PET. Carpets made of recycled PET fibers offer the manufacturer low raw material costs in addition to ecological advantages.

This paper presents a comprehensive study on a novel ultrasound-assisted extraction process for Rosa canina, utilizing both dry and fresh fruits, and explores the potential application of Rosa canina extraction as a natural dye and functional agent for cotton fabrics. The ultrasound-assisted extraction employed different solvents, including distilled water, methanol, and a water/methanol mixture (50/50% v/v), conducted at 60 °C for 60 min. The extracted compounds were characterized through ultraviolet–visible (UV-Vis) spectroscopy and high-performance liquid chromatography with ultraviolet spectroscopy (HPLC-UV) analysis to assess the chemical composition. Textile applications were then performed using bio-mordant chitosan in a pre-mordanting process, and the treated cotton fabrics underwent analysis for surface chemistry and chemical composition using Fourier-transform infrared spectroscopy (FTIR). Untreated and treated fabrics, both with and without mordant, were evaluated for their UV protection and antibacterial properties. Color measurements and dyeability properties of the extractions were also assessed. Furthermore, waste solutions from textile applications were analyzed by UV-Vis spectroscopy to investigate the potential transfer of active compounds to the fabrics. Results indicate that Rosa canina, as a plant-based extract, holds significant potential for sustainable dyeing and functional finishing of cotton fabrics.

The present paper analyzes the potential for commercially available flame-retardant chemical called Fire-off for enhancing the flame-retardant properties of polyester (PET) and cotton (Co) fabrics and their corresponding blends (Co/PET). Fire-off was applied to the fabric through impregnation method and the resulting properties of these fabrics were assessed in terms of combustion behavior by use of a micro cone calorimeter (MCC) and Thermogravimetric Analysis (TGA). TGA results revealed that Fire-off could greatly enhance char residues of cotton, polyester and Co/PET fabrics at high temperature region. MCC results showed that Fire-off treatment could significantly decrease the heat release capacity (HRC), heat release rate (HRR), total heat release rate (THR) and peak heat release rate (pHRR) of cotton, polyester and Co/PET fabrics. According to comparison results, a near-perfect agreement between MCC and TGA data were found in terms of degradation temperatures and mass loss rates of fabric samples.

In the present study, a new FR and non-slip finishing system in one step was developed for cotton/polyester (CO/PET) fabrics. Recipes including PVP (PR)-P-DCDA (Fire-off), polysilicic acid and citric acid combinations were developed and applied to cotton and CO/PET fabrics by impregnation method. FR properties and seam slippage resistance of treated fabrics with Fire-off/polysilicic acid systems were investigated. In addition, characterization analysis such as FTIR, DCS were performed and tensile properties of treated fabrics were tested in order to detect any changes on mechanical properties of fabrics after treatment. Results demonstrated that Fire-off/ polysilicic acid treatment leads good FR properties (LOI ˃27) and seam slippage resistance (warp: 2.2 mm, weft 1.2 mm) with superior ease of application in one-step process.