http://nopr.niscpr.res.in/handle/123456789/61035 Sat, 10 Oct 2026 01:08:56 GMT 2026-10-10T01:08:56Z http://nopr.niscpr.res.in/handle/123456789/61065 Title: Thermal, mechanical and comfort performance of various modacrylic fibre blended fabric Authors: Parmar, M S; Sonee, Noopur Abstract: In this study, various blended fabrics of modacrylic fibre with flame retardant (FR) viscose, and Nylon 66 have been manufactured and studied for their thermal, mechanical and comfort properties for workers of oil & gas industry. The ring spinning system is used to manufacture three sets of yarns. In the first set, three yarns are produced using only modacrylic, only FR viscose, and only Nylon 66 fibres. The second set of yarns is made using blends of FR viscose and modacrylic. These fibres are blended in three different ratios of 30:70, 50:50 and 70:30 for making yarns. The third set is made out of tertiary blends of FR viscose, nylon 66 and modacrylic. These are blended in two different ratios of 30:20:50 and 50:20:30 respectively. Fabric samples have been produced out of these yarns and evaluated for their flame, thermal and mechanical properties after 5 and 50 washes. The radiant heat transfer index and convective heat transfer index of blends of modacrylic fibre are found in the range 12 - 13.5 s and 5.0 - 5.7 s respectively. Multivariate test analysis has been applied to find out the effect of different fibre blends on various flame and thermal properties. The study shows that flame and thermal resistant properties are influenced by fibre blending ratio. Page(s): 385-394 Thu, 01 Dec 2022 00:00:00 GMT http://nopr.niscpr.res.in/handle/123456789/61065 2022-12-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/61064 Title: Synthesis and characterization of superabsorbent natural polymers from agro-waste fibres Authors: Rekha, V Bhanu; Prakash, C; Gowri, K Abstract: This work focuses on synthesizing superabsorbent material from polysaccharides, which are derived from environment-friendly raw materials like ligno-cellulosic agro-waste. Three ligno-cellulosic agro-waste fibres, namely banana, sisal and bagasse, have been taken for the present study, to synthesize natural superabsorbent polymer which are eco-friendly and bio-degradable. Cellulose has been extracted from sisal, bagasse and banana, of which cellulose yield has been high for banana fibres. Carboxy methyl cellulose (CMC) synthesized from the extracted cellulose is cross-linked with aluminium sulphate octadecahydrate to subsequently synthesize superabsorbent polymer from these agro-waste fibres. The sysnthecised CMC from all the three agro-waste fibres shows great reduction in immersion time; CMC from sisal shows the least immersion time of 2.67 s. Banana fibres have recorded the highest degree of substitution. The superabsorbent polymer synthesized from banana fibres has shown an increase in absorbency and swelling rate but reduction in immersion time. This owes to the higher yield of cellulose and the higher degree of substitution attained in the case of banana fibres. This has been proved by chemical composition, SEM and FTIR analyses. This study helps in developing eco-friendly superabsorbent sanitary napkins. Page(s): 395-402 Thu, 01 Dec 2022 00:00:00 GMT http://nopr.niscpr.res.in/handle/123456789/61064 2022-12-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/61063 Title: Effect of weft yarn laying on tensile properties of weft-inserted knitted fabrics Authors: Aghazadeh, Shiva; Asayesh, Azita; Latifi, Masoud Abstract: To investigate whether the combination of tuck and miss stitches can be used as an alternative method to produce weftinserted fabrics, in cases where the weft knitting machine is not equipped with a weft insertion system, straight yarns with various densities and arrangements have been inserted in the course direction of rib weft knitted fabrics. The results of tensile tests in the course and wale directions denote that the use of straight yarns increases the tensile strength and tensile strain of the fabric in both directions, while the elastic modulus increases in the course direction. Furthermore, increasing the straight yarn density leads to an increase in the tensile strength and elastic modulus and a decrease in the tensile strain in both directions. Eventually, since the weft yarn arrangement has no significant effect on the fabric tensile strength and elastic modulus, this method can be used as an alternative method to produce weft-inserted fabrics. Page(s): 403-409 Thu, 01 Dec 2022 00:00:00 GMT http://nopr.niscpr.res.in/handle/123456789/61063 2022-12-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/61062 Title: Rheological model for studying fatigue of knitted fabric Authors: Marzougui, Saber; Zaouali, Raja Abstract: The plain knitted structure (cotton) generally utilized in the clothing domain has been studied with cyclic loading at diverse fatigue number cycles. Fatigue test induces delayed-elastic and permanent deformation that increase according to cyclic elongation. The delayed-elastic and permanent deformation of tested knit has been discussed based on Burger’s rheological model. This model is suitable to describe the deformation behavior during relaxation of a plain knitted structure. The proposed rheological model permits us to estimate the elastic, viscoelastic and plastic components of the different tested fabrics after fatigue test. Page(s): 410-416 Thu, 01 Dec 2022 00:00:00 GMT http://nopr.niscpr.res.in/handle/123456789/61062 2022-12-01T00:00:00Z