Cellulose fibers are promoted for use in various textile applications due their sustainable nature. Cellulose-based fibers vary considerably in their mechanical and flammability properties depending on their chemical composition. The chemical composition of a cellulose-based fiber is further dependent on their source (i.e., seed, leaf, cane, fruit, wood, bast, and grass). Being organic in nature, cellulose fibers, and their products thereof, pose considerable fire risk. In this work we have compared the flammability properties of cellulose fibers obtained from two different sources (i.e., cotton and peat). Compared to cotton cellulose textiles, peat-based cellulose textiles burn longer with a prominent afterglow which can be attributed to the presence of lignin in its structure. A series of phosphoramidates were synthesized and applied on both cellulose textiles. From thermogravimetric and pyrolysis combustion flow analysis of the treated cellulose, we were able to relate the flame retardant efficacy of the synthesized phosphorus compounds to their chemical structure. The phosphoramidates with methyl phosphoester groups exhibited higher condensed phase flame retardant effects on both types of cellulose textiles investigated in this study. In addition, the bis-phosphoramidates exhibited higher flame retardant efficacy compared to the mono-phosphoramidates.

NYKORAK Оlena, KUTSYR Tetiana, KUMPIKAITE Egle, MILASIENE Daiva, RUKUIZIENE Zaneta, NENARTAVICIUTE Erika. WESTERN UKRAINIAN AND LITHUANIAN BEDSPREADS: DECOR

NYKORAK Оlena, KUMPIKAITĖ Eglė, MILAŠIENĖ Daiva, RUKUIŽIENĖ Žaneta. TRADITIONAL TOWELS OF WESTERN UKRAINE AND LITHUANIA: COMMON AND DISTINCTIVE FEATURES OF THE DECOR

KUTSYR Tetiana, MILAŠIENĖ Daiva, RUKUIŽIENĖ Žaneta. EMBROIDERY IN TRADITIONAL WOVEN TOWELS OF THE WESTERN PART OF UKRAINE AND LITHUANIA: COMPARATIVE ASPECT

Single-needle electrospinning and needle-free electrospinning were applied to fabricate cellulose acetate (CA) fibrous mats containing rosemary (RO), clove (CL) and thyme (TH) essential oils (EO) from binary or ternary solvent mixture solutions. When an acetone, dichloromethane, and dimethylformamide mixture was used as the solvent system, cylindrical nanofibers with an average diameter between 255 and 617 nm were obtained. Removing dimethylformamide from the spinning solution resulted in flattened microfibers with significantly larger diameters, varying from 1242 to 2939 nm. Furthermore, CA nanofibers loaded with RO, CL or TH essential oils with diameter distributions ranging from 55 to 176 nm, from 69 to 215 nm and from 44 to 291 nm, respectively, were produced from ternary solvent mixture solutions using needle-free electrospinning equipment. FTIR and TGA studies revealed the incorporation of essential oils into the fiber structure, and GC-MS was used to evaluate the release of bioactive components from fibrous mats. The electrospun nanofibers of CA/RO, CA/CL and CA/TH showed excellent antioxidant activity and antimicrobial properties against Escherichia coli, Pseudomonas aeruginosa and Listeria monocytogenes. In addition, the CA/CL fibrous mat was tested in the storage of fresh beef steaks.