Indian Journal of Fibre & Textile Research

 

www.niscair.res.in

Total visitors:144  since 11-12-07

VOLUME  32

NUMBER 4

DECEMBER 2007

CODEN : IJFTR

 

ISSN : 0971-0426

 

CONTENTS

 

Microwave absorption properties of carbon fibre containing nonwovens

        Hua Zhu, Ping Chen, Ruixin Wu & Hui Zhang

        [IPC Code: Int. Cl.8 D04H]

 

391

Tensile and impact behaviour of rice straw - polyester composites

      A V Ratna Prasad, K Murali Mohan Rao , K Mohan Rao & A V S S K S Gupta

        [IPC Code: Int. Cl.8 D04H]

 

399

Contribution of fibre profile to performance characteristics of polyester-viscose and polyester-cotton ring and MJS yarns

      G K Tyagi, A Gopal & D P Gon

        [IPC Code: Int. Cl.8 D02G3/00]

 

404

Prediction and optimization of yarn properties using genetic algorithm/artificial neural network

      S N Subramanian, A Venkatachalam & V Subramaniam

        [IPC Code: Int. Cl.8 D02G3/00, G06N3/02]

 

409

Air flow behaviour in commingling nozzles and their influence on properties of commingled yarns

      R Alagirusamy, Vinayak Ogale & Manick Bhowmick

        [IPC Code: Int. Cl.8 D02G3/00]

 

 

414

Characterization and classification of fabric defects using discrete cosine transformation and artificial neural network

      B K Behera & M P Mani

        [IPC Code: Int. Cl.8 D06H3/00, G06N3/02]

 

 

421

Compression behaviour of jute-polypropylene blended needle-punched nonwoven fabrics

      S Debnath & M Madhusoothanan

        [IPC Code: Int. Cl.8 D04H]

 

427

Influence of core yarn properties on pile loss in chenille plain knitted fabrics

      Banu Uygun Nergis

        [IPC Code: Int. Cl.8 D03D27/18]

 

434

Tearing strength of cotton fabrics in relation to certain process and loom parameters

      S Dhamija & Manisha Chopra

        [IPC Code: Int. Cl.8 D03D]

439

Effect of fabric softener on thermal comfort of cotton and polyester fabrics

      M Parthiban & M Ramesh Kumar

        [IPC Code: Int. Cl.8 D06B1/00]

 

446

Complex estimation of woven fabrics bending ability

      Tatjana Mihailovic, Koviljka Asanovic & Tatjana Mihajlidi

        [IPC Code: Int. Cl.8 D03D]

 

 

453

Amylase and pectinase from single source for simultaneous desizing and scouring

      P Dalvi, P Anthappan, N Darade, N Kanoongo & R Adivarekar

        [IPC Code: Int. Cl.8 D06B]

 

459

Dyeing of jute and cotton fabrics using Jackfruit wood extract: Part I — Effects of mordanting and dyeing process variables on colour yield and colour fastness properties

        Ashis Kumar Samanta, Priti Agarwal & Siddhartha Datta

        [IPC Code: D06P]

 

 

466

Short Communication

 

 

Study on crosslinked dyed jute carpet pile yarns

        S M Badier Rahmana, Md Kamal Uddin, M M Alamgir Sayeed, Md Abdus Samad & Mohammad A Rahman

        [IPC Code: Int. Cl.8 D04M]

477

 

 

 

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 391-398

 

Microwave absorption properties of carbon fibre containing nonwovens

 

Hua Zhu, Ping Chen ,  Ruixin Wu & Hui Zhang

Received 5 July 2006; revised received and accepted 12 April 2007

A variety of nonwoven containing different weight percentages of pitch-based carbon fibre has been developed using through-air thermal bonding process or the spray bonding process and studied for its microwave absorbing capacity in the microwave frequency range 8 - 18GHz. Microwave reflectivity of the nonwoven is found closely related to the carbon fibre content. Electromagnetic parameters of the component fibres in the nonwoven have also been studied. Variation in microwave absorbing capacity of the nonwoven with the carbon fibre content is expounded according to the relationship between the electromagnetic parameters and the reflection coefficient of the nonwoven, as well as the relationship between the electromagnetic parameters and the attenuation constant of the nonwoven. The carbon fibre containing nonwoven has great potential in the military application as the radar camouflage material or in the non-defense application as the electromagnetic shielding material.

Keywords: Carbon fibre, Microwave absorption, Nonwoven , Permeability, Permittivity, Polyester, Reflectivity

 

 

 

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 399-403

 

Tensile and impact behaviour of rice straw-polyester composites

 

A V Ratna Prasad,   K Murali Mohan Rao , K Mohan Rao & A V S S K S Gupta

Received 20 October 2006; revised received and accepted 8 March 2007

Rice straw fibres have been extracted and incorporated in polyester resin matrix to prepare rice straw reinforced polyester composites and the tensile and impact properties of the resultant composites studied. The rice straw fibres have a tensile strength of ~ 69.72 MPa and Young’s modulus of ~ 2427 MPa. The composites have been formulated up to fibre volume of about 40%, resulting in a mean tensile strength of 46 MPa which is greater than that of plain polyester (31.5 MPa). The tensile modulus of composite is found to be 1045 MPa which is about 1.66 times to that of plain polyester. The specific tensile modulus is nearly 2.17 times to that of polyester resin. The work of fracture measured in impact at a fibre volume of 46% is found to be 284 J/m. Therefore, the straw-based composites have potential to be used as core material for structural board products.

Keywords: Impact strength, Natural fibre composite, Polyester, Rice straw, Tensile modulus, Tensile strength

 

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 404-408

 

Contribution of fibre profile to performance characteristics of  polyester-viscose and polyester-cotton ring and MJS yarns

 

G K Tyagi, A Gopal & D P Gon

Received 5 December 2006; revised received and accepted 6 June 2007

The influence of fibre cross-sectional shape and production speed on the performance potential of polyester-viscose and polyester-cotton ring- and MJS yarns has been studied. The data indicate significant differences in the performance of the yarns produced with different spinning speeds and the yarns spun with high spinning speed display better structural intrigrity, high compressional resilience, low compressional energy, high abrasion resistance and more hairiness than the yarns spun under identical condition but with lower speed. Incorporating non-circular fibre in the mix greatly reduces structural integrity, abrasion resistance and hairiness for both yarn structures. The reduction in their characteristics is highly dependent on the fibre mix and production speed. For all experimental combinations, the MJS yarns possess better structural integrity, better compressional resilience, less hairiness and lower abrasion resistance than the ring - spun yarns.

Keywords: Compressional energy, Jet- spun yarn, Ring- spun yarn, Structural integrity, Trilobal polyester fibre,
Wrapper fibre

 

 

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 409-413

 

Prediction and optimization of yarn properties using genetic algorithm/artificial neural network

S N Subramanian, A Venkatachalam  & V Subramaniam

Received 14 June 2006; revised received and accepted 19 March 2007

Relative performance of the back propagation neural network (BPN) algorithm combined with genetic algorithm (GA) approach for the prediction/optimization of the properties of yarn produced on jet ring spinning system has been studied. Yarn samples of various linear densities have been produced on ring spinning machines using air-jet nozzles as retrofit by varying the nozzle parameter and the yarn properties studied. The hybrid application is used to predict selected yarn properties based on the effect of certain nozzle parameters. The network trained for a set of training vectors is found to predict the yarn properties for a compacting method with minimum error percentage. The proposed GA/BPN model could be extended to suggest a suitable compacting method for the desired yarn properties.

Keywords: Air-jet nozzles, Artificial neural network, Back propagation network, Genetic algorithm, Hybrid technique, Jet ring-spun yarns

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 414-420

 

Air flow behaviour in commingling nozzles and their influence on
properties of commingled yarns

 

R Alagirusamy, Vinayak Ogale & Manick Bhowmick

Received 20 December 2006; revised received and accepted 6 June 2007

Two types of commingling nozzles have been used to study the air flow behaviour inside the nozzle and their effects on commingling performance of glass/nylon yarns. The air flow behaviour has been analysed with computational fluid dynamics software FLUENT 6.1 and actual air flow velocities are calculated using measured air pressure. It is observed that there is a good correlation between the simulation and the measured air flow pattern. The air flow pattern in the Nozzle-1 configuration shows more turbulent zones than that in Nozzle-2. The commingled yarn properties also clearly indicate that the effectiveness of commingling is much better with Nozzle-1 configuration than that with Nozzle-2 configuration.

Keywords: Air-jet nozzle, Commingled yarn, Composites, Computational fluid dynamics, Glass fibre, Hybrid yarns, Nylon

 

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 421-426

 

Characterization and classification of fabric defects using discrete cosine transformation and artificial neural network

B K Behera & M P Mani

Received 25 April 2006; revised received and accepted 21 March 2007

This paper reports how images of woven fabric defects are gathered using charge coupled device imaging technique and digitized. Discrete cosine transformation (DCT) technique is adopted to characterize the defects and back propagation algorithm based artificial neural network is used to classify the various fabric defects. DCT technique is found to give outstanding results for classification of fabric defects. The comparatively high prediction error in one or two cases may be due to the insufficient information about the particular defect from the coefficients of that defect.

Keywords: Artificial neural network, Back propagation training algorithm, Discrete cosine transform, Fabric defects

 

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 427-433

 

Compression behaviour of jute-polypropylene blended needle-punched
nonwoven fabrics

 

S Debnath & M Madhusoothanan

Received 19 July 2006; revised received 9 February 2007; accepted 10 May 2007

The effect of fabric weight, needling density and blend proportion of jute and polypropylene fibres on compression properties has been studied. Box and Behnken experimental design has been used to study the individual and interactive effects on compression properties, namely initial thickness, percentage compression, percentage thickness loss and percentage compression resilience of jute-polypropylene blended needle-punched nonwoven fabrics. It is observed that the initial thickness increases prominently with the increase in fabric weight at the level of 40% polypropylene content in fabric. The fabric thickness reduces with the increase in needling density and the effect of fabric weight on initial thickness of the fabric is negligible at the higher level of polypropylene content in fabric. The increase in needling density or fabric weight reduces the percentage compression of jute-polypropylene fabric. The percentage thickness loss decreases with the increase in fabric weight. At higher fabric weight, the increase in needling density decreases the percentage thickness loss, irrespective of blends. The percentage compression resilience of the fabric increases with the increase in polypropylene content in the blend.

Keywords: Compression resilience, Jute-polypropylene blends, Needle-punched fabric, Nonwoven, Thickness loss, Woollenised jute

 

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 434-438

 

Influence of core yarn properties on pile loss in chenille plain knitted fabrics

Banu Uygun Nergis

Received 16 October 2006; revised received and accepted 26 March 2007

The effect of core yarn properties, such as core yarns material type, yarn count, structure, twist and twist direction. On pile loss tendency of chenille yarns in plain knitted fabrics has been studied. It is observed that the chenilles produced with coarser cotton yarns result in lower amount of pile loss after abrasion than that produced with fine count components. Viscose fibres are not suitable materials for chenille yarns when their effect on pile loss tendency is considered. The use of core yarns having the same twist direction as the chenille yarn increases the abrasion resistance of fabrics, while it causes spirality problem. It is also found that the use of higher twist in core yarns is not a remedy for the pile loss problem in chenille yarns.

Keywords: Acrylic, Chenille yarn, Cotton, Core yarn, Knitted fabric, Pile loss, Viscose

 

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 439-445

 

Tearing strength of cotton fabrics in relation to certain process and
loom parameters

 

S Dhamija & Manisha Chopra

Received 18 September 2006; revised received and accepted 22 January 2007

Tearing strength of cotton fabrics made of ring- as well as compact-spun weft yarns has been studied in relation to certain process and loom parameters. It is observed that the fabrics made of compact-spun weft yarns are more tear resistant. The tearing strength further improves particularly in the weft-way direction with the increase in weft yarn linear density and weft tex twist factor. There is an initial increase in strength followed by a decrease as the number of picks/inch is increased in the cotton fabrics made of compact-spun yarns. However, for the fabrics made of ring yarns, it shows a general decreasing trend. The 2/2 designs are found to be superior in warp-way but inferior in weft-way directions. The fabrics woven on air-jet looms show lower tearing strength than those woven on projectile looms. The mechanical finish as well as the variation in shed opening do not affect the tearing strength of cotton fabrics produced from compact-spun weft yarns.

Keywords: Compact-spun yarns, Cotton, Pick density, Tearing strength, Woven fabrics, Yarn withdrawal force

 

 

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 446-452

 

Effect of fabric softener on thermal comfort of cotton and polyester fabrics

M Parthiban  & M Ramesh Kumar

Received 12 April 2006; revised received and accepted 10 April 2007

The effect of fabric softener on thermal comfort properties, such as air permeability, thermal insulation value and wickability, of cotton and polyester fabrics after repeated laundering have been studied. It is observed that the fabric softener treatment with different levels significantly decreases the air permeability and wickability of cotton fabrics but does not affect the polyester fabrics properties. The softener treatment increases the thermal insulation value of both cotton and polyester fabrics to a similar degree. Statistical analysis also indicates that the results are significant for air permeability, thermal insulation value and wickability of the fabrics. The chemical finishing has a significant influence on the thermal comfort properties of cotton and polyester fabrics after repeated laundering cycles.

Keywords: Air permeability, Cotton, Polyester, Thermal insulation value, Wickability

 

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 453-458

 

Complex estimation of woven fabrics bending ability

 

Tatjana Mihailovic, Koviljka Asanovic & Tatjana Mihajlidi

Received 3 July 2006; revised received and accepted 17 April 2007

The bending ability of cotton, wool and viscose woven fabrics under the action of their own weight has been examined using the direct indicators by cantilever method, and indirect indicators by disc method. The results obtained by the usage of direct and indirect indicators are found to be sensitive to raw material as well as constructional characteristics of woven fabrics. Values of direct as well as indirect indicators can be used for establishing the complex estimation of fabrics bending ability. It is found that the viscose fabric has the best bending ability and cotton (1) the poorest.

Keywords: Bending ability, Cantilever method, Cotton, Disc method, Viscose, Wool, Woven fabrics

 

 

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 459-465

 

Amylase and pectinase from single source for simultaneous desizing and scouring

 

P Dalvi,  P Anthappan, N Darade, N Kanoongo & R Adivarekar

Received 18 May 2006; revised received and accepted 6 June 2007

A wild type bacterial strain isolated from soil rhizosphere has been used to produce amylase and pectinase in a common production media. Single step combined enzymatic desizing and scouring of grey cotton fabric using these enzymes have been done without further purification. The formulated media containing both the enzymes gives higher weight loss and absorbency compared to the commercial enzymatic desizing. The absorption coefficient after treatment with formulated media is found to be similar to that observed after the conventional desized-scoured fabric treatment. It is observed that the study would improve textile processing in terms of ecofriendliness coupled with conservation of time, energy and chemicals.

Keywords: Amylase, Cotton, Desizing, Microbial isolate, Pectinase, Scouring

 

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 466-476

 

Dyeing of jute and cotton fabrics using Jackfruit wood extract: Part I — Effects of mordanting and dyeing process variables on colour yield and
colour fastness properties

 

Ashis Kumar Samanta , Priti Agarwal & Siddhartha Datta

Received 7 August 2006; revised received and accepted 30 November 2006

Conventionally bleached jute and cotton fabrics have been subjected to pre-mordanting with selective single and double mordants using myrobolan (harda) and other mordants (metallic salts) followed by dyeing with aqueous extract of jackfruit wood and then studied for their mechanical and dyeing properties. It is observed that the application of 10-20% myrobolan followed by 10-20% of Al2(SO4)3 or FeSO4 in sequence have been identified as two most prospective mordanting systems. The study on the effect of dyeing process variables on surface colour strength indicates that the 90 min dyeing time, 70-90°C dyeing temperature, 11.0 pH, 1:30 material-to-liquor ratio, 20-30% mordants concentration, 30-40% dye concentration, and 15 gpl common salt are the optimum values with minor differences among the different fibre-mordant systems studied. Colour fastness to washing, rubbing and exposure to sunlight, in general, and dyeing-pH sensitivity, in particular, for selective fibre-mordants-dye systems have also been assessed and compared. Dyeing at pH 11.0 for both the double pre-mordanting systems offers overall good colour fastness properties.

Keywords: Cotton, Dyeing, Jackfruit wood, Jute, Mordanting, Myrobolan, Natural dyes

 

Indian Journal of Fibre & Textile Research

Vol. 32, December 2007, pp. 477-480

 

Study on crosslinked dyed jute carpet pile yarns

 

 

 

S M Badier Rahman, Md Kamal Uddin, M M Alamgir Sayeed,   Md Abdus Samad & Mohammad A Rahman

Received 18 September 2006; revised received and accepted 8 June 2007

Jute carpet pile yarns have been treated with Indosol E-50 powder, dyes and magnesium chloride hexahydrate (MgCl2.6H2O) catalyst, and both treated (crosslinked dyed) and untreated yarns are used to prepare jute carpets in a mill. Several carpet parameters, such as thickness recovery, compression recovery, work of recovery, tuft withdrawal force and moisture content, of the treated carpet samples have been studied and compared with those of the untreated carpet of the same pile hight. The results show improvement in the performance characteristics of the crosslinked dyed jute carpet.

Keywords: Carpet pile yarns, Crosslinking agent, Jute carpet