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Indian journal of fibre & textile research
National Institute of Science Communication and Information Reaources, CSIR
Indian journal of fibre & textile research

National Institute of Science Communication and Information Reaources, CSIR

季刊

0971-0426

Indian journal of fibre & textile research/Journal Indian journal of fibre & textile researchSCIISTP
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    Thermal, mechanical and comfort performance of various modacrylic fibre blended fabric

    Parmar, M. S.Sonee, Noopur
    385-394页
    查看更多>>摘要: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.

    Synthesis and characterization of superabsorbent natural polymers from agro-waste fibres

    Rekha, V. BhanuPrakash, C.Gowri, K.
    395-402页
    查看更多>>摘要: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.

    Effect of weft yarn laying on tensile properties of weft-inserted knitted fabrics

    Aghazadeh, ShivaAsayesh, AzitaLatifi, Masoud
    403-409页
    查看更多>>摘要:To investigate whether the combination of tuck and miss stitches can be used as an alternative method to produce weft-inserted 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.

    Rheological model for studying fatigue of knitted fabric

    Marzougui, SaberZaouali, Raja
    410-416页
    查看更多>>摘要: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.

    Filtration performance of needle-punched nonwoven air filter media through dyeing process

    Roy, RupayanLaha, AnimeshRoy, SteeveSood, Puneet...
    417-423页
    查看更多>>摘要:Viscose fibre has been dyed with various dye concentrations and the needle-punched nonwoven fabrics are prepared using the dyed fibre, keeping machine parameters the same. The physical properties, such as tenacity & bursting strength, and functional performance properties, such as mean flow pore size, filtration efficiency & pressure drop, are measured. It is found that the dyeing plays a big role in altering the overall performance of the needle-punched nonwoven. The tenacity of the needle-punched nonwoven fabric is reduced as dye concentration is increased. Filtration efficiency is measured for three different sizes of particles, namely 3 mu m, 5 mu m, and 10 mu m. For all three cases, the filtration efficiency is increased initially till 3% dye concentration and beyond that it is reduced.

    Impact of varying lactate concentration in sweat on liquid moisture transmission behaviour of layered ensembles

    Preet, AgyaMukhopadhyay, A.Midha, V
    424-431页
    查看更多>>摘要:The present study is focussed on the impact of change in the lactate concentration (43 mM and 22 mM) in sweat solution on liquid moisture transmission behaviour through the clothing. The sweat solution with higher concentration of lactate (43 mM) shows delayed wetting at the top surface both in case of individual layer and multi-layer fabric ensembles, i.e. it takes longer time to wet the top surface in spite of the lower contact angle made by it. Significant difference is observed in in-plane transmission behaviour of both the sweat solutions in the case of multi-layered ensembles. In case of multi-layered ensembles, wetting time reduces drastically, even though both the ensembles consist of polyester knit as the inner surface possessing wetting time is 50 s approximately. Sweat solution with higher lactate concentration also shows higher cross-planar transmission rate as compared to in-plane transmission. Uni-directional seamed multi-layered spacer fabric exhibits better overall moisture management coefficient as compared to bi-directional seamed spacer ensembles with sweat solution containing higher lactate concentration. Middle layer also plays a vital role in altering the overall liquid moisture transmission behaviour.

    Effect of chemical treatments on physical properties of kenaf bast fibres

    Bhambure, ShilpaRao, A. S.Senthilkumar, T.
    432-436页
    查看更多>>摘要:In the present study, kenaf bast fibre surfaces have been modified using different chemicals with varying concentration. The effects of these chemical treatments on moisture content, water absorption, fibre diameter and bundle strength are investigated. The benefit of chemical treatments in the removal of impurities from the fibre surfaces has been established by scanning electron microscopy. It is found that the fibres treated with sodium hydroxide and acetic acid show major effect on fibre diameter. Compared to untreated kenaf fibre, strong alkali (NaOH) treatment show maximum water absorption (78.76%) and moisture content (8.15%). In fibre bundle tensile strength, sodium hydroxide and sodium carbonate treated fibres show more than 80% improvement in the tensile strength of fibre. Kenaf fibre treated with 10% Na2CO3 show highest tensile strength of 410 MPa.

    Effect of plasma treatment on polyester knitted fabrics: Part I- Thermal comfort

    Vidya, T.Prakash, C.Rajwin, A. JebastinBabu, V. Ramesh...
    437-442页
    查看更多>>摘要:Plasma-treated thermal comfort properties of four different types of polyester knitted fabrics (spun, continuous filament, micro denier and hollow fibre polyester), have been studied. The oxygen plasma treatment shows an encouraging effect on the air permeability, thermal conductivity, relative water vapour permeability, and wicking of the fabric samples. The findings mostly depend on the oxygen gas, loop length parameter and the thickness of the fabric. The oxygen plasma treatment also affects the thickness of fabric. The plasma-treated micro denier fabric, having courser count with higher loop length, shows higher air permeability. The plasma-treated hollow fibre polyester fabric has higher water vapour permeability, higher thermal conductivity and the highest wicking height.

    Development ofpH sensitive turmeric dyed fabrics for detection of acetic acid vapours

    Neveatha, MuthusamyDev, Venkateshwarapuram Rengaswami Giri
    443-449页
    查看更多>>摘要:A fabric sensitive to acidic vapors has been developed, using cationized cotton with eco-friendly pH-sensitive colorant turmeric. The fabric displays a color change in acidic and alkaline conditions on immersion and to acidic vapors. The fabrics show excellent reversibility on washing and can be used multiple times.

    Optimization of extraction and dyeing parameters for dyeing of khadi cotton fabric using waste/used marigold flower petals (Tagetes erecta)

    Sinnur, H. D.Verma, D. K.Kar, Tapas Ranjan
    450-463页
    查看更多>>摘要:The aim of the present study is to standardize a protocol for optimization of pre-treatment, mordanting and dyeing of cotton khadi fabric with waste marigold flower petals. The effects of different single and combined double mordanting on dye-ability and colour fastness properties have been studied after optimization of aqueous extraction of marigold flower as natural dye. Mordants used are potash alum, aluminium sulphate, stannous chloride as metallic salt mordant and harda (myrabolan) from natural source as mordant assistant. After finalizing the mordants, dyeing process variables are standardized for dyeing cotton khadi fabric with waste marigold flower extract as selective natural dye applied on 3% H2O2 (30%) bleached cotton khadi fabric. Dyeing process variables studied are dyeing time, temperature, MLR, pH, mordant concentration, dye concentration and salt concentration for dyeing with prefixed mordant. Colour fastness to washing, rubbing, light and perspiration against use of different mordants and also against different dyeing process variables are also investigated. The results indicate that, this particular natural dye renders better appreciation of colour yield by pre mordanting with 15% aluminium sulphate and harda (50:50) as compared to other single mordants (potash alum and stannous chloride) and double mordants used. Use of double mordant in 15 % application level, shows maximum K/S value with overall good colour fastness than others.