Abstract In this study, two synthesized pyrimidine derivatives ( 2a and 2b ) were employed as modifiers for two textile substrates: 100% “Cotton” gauze (C) and 50/50% “Cotton/PET” (C/PET) to prepare filters for crude milk. The fabrics were modified using the pad/dry/curing technique. The effect of filtration on the shelf life of raw milk stored at temperatures of 20 and 5 °C was investigated using fabric filters. The chemical composition analysis of raw and filtered milk, including fat, protein, lactose, and solid non-fat content, was assessed. Similarly, a clot-on-boiling test, pH, and microbial content were investigated. The shelf life of the milk was extended from 8 to 20 h and from 4 to 6 days by filtration for samples stored at 20 and 5 °C, respectively, without any significant differences in chemical composition. Antibacterial activity of all treated fabrics and filtered milk was evaluated against pathogenic bacteria, Coliform, “ E. coli ”, and total molds, and the results showed high antimicrobial activity. The cytotoxicity of treated fabrics, as well as pyrimidine derivatives, was tested and displayed no cytotoxicity performance.

Abstract This study investigates the dyeing, computer-aided color matching (CCM), fastness, tensile and surface properties of cotton samples dyed in non-aqueous medium of alkane solvents, including heptane, octane and nonane with the use of biodegradable secondary alcohol ethoxylates (SAE) surfactant-based reverse micelles. Experimental results show that color yield of alkane solvent-dyed batch and standard samples can be 4.7–123.5% and 73.1–91.8% higher than the water-dyed batch and standard samples, respectively. Calibration curves are almost linear in structure and the actual CCM results show less than 30% and 33% difference from the theoretical concentration for aqueous and non-aqueous dyeing, respectively. Reflectance curves are identical in shape. Both samples show good to excellent color evenness, washing, crocking and light fastness and distinctive CIE L * a * b * values, guaranteeing the color quality of the dyed samples. Good tensile and surface properties of the dyed samples were verified by the AATCC test method and scanning electron microscopy (SEM). More than 97% of the alkane solvents can be effectively recovered via simple distillation method. These validate that the use of SAE surfactant-based reverse micelles for dyeing of cotton fabric in alkane non-aqueous medium is potentially applicable for industrial computer-aided color matching with good dyeing properties and color quality comparable to fabrics dyed in conventional water-based system. Graphical Abstract