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        Alkali Treated Jute Fabrics Suitable for the Production of Inexpensive Technical Textiles

        Aleksandra Ivanovska,Koviljka Asanović,Maja Jankoska,Sanja Pavlović,Goran Poparić,Mirjana Kostić 한국섬유공학회 2022 Fibers and polymers Vol.23 No.8

        This work aimed to obtain jute fabrics suitable for the production of inexpensive technical textiles by using simplealkali treatments. The influences of alkali concentration (1-17.5 % NaOH) and treatment duration (5-30 min) on the fabrics’compression properties, abrasion resistance, and sound absorption coefficient were studied in detail. With increasing thetreatment severity, the fabric compressibility decreases by 19.6-33.9 % due to increased fabric compactness. In parallel, thefiber crystallinity index and hemicellulose content decrease, while the fibers’ interfibrillar regions become less dense and lessrigid contributing to 19.0-27.0 % better recoverability after compression. The mercerized fabrics possessed a notably lowermass loss (4.1-5.9 %) after 750 abrasion cycles compared to the other investigated fabrics (18.9-30.9 %), which could beascribed to the higher friction forces existing between the yarns within the mercerized fabrics and between the fibers withinthe yarns, as well as higher elongation at maximum force. In the case of the fabrics treated for 5 or 15 min with differentNaOH concentrations, their mass losses during abrasion decrease with increasing the elementary fiber liberation, while thesound absorption coefficients increase with increasing the fabric compactness. Mercerized fabrics are capable of absorbingabout 28 % to 2.7 times (at 990 Hz) and 2.0 to 2.4 times (at 4090 Hz) higher mechanical sound energy compared to theuntreated fabric. The jute fabric mercerized during 30 min could be used for the production of carpet backings, while thosemercerized during 5 min is the most suitable for the production of sound-absorbing materials.

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