Syllabus for Textile Engineering and Fibre Science (TF)
Matrices and Determinants, Systems of linear equations, Eigen values and eigen vectors.
Limit, continuity and differentiability; Partial Derivatives; Maxima and minima;
Sequences and series; Test for convergence; Fourier series.
Gradient; Divergence and Curl; Line; surface and volume integrals; Stokes, Gauss
and Green's theorems.
Linear and non-linear first order ODEs; Higher order linear ODEs with constant
coefficients; Cauchy's and Euler's equations; Laplace transforms; PDEs - Laplace,
heat and wave equations.
Probability and Statistics:
Mean, median, mode and standard deviation; Random variables; Poisson, normal and
binomial distributions; Correlation and regression analysis.
Solutions of linear and non-linear algebraic equations; integration of
trapezoidal and Simpson's rule; single and multi-step methods for differential
Textile Engineering and Fibre Science
Classification of textile fibres; Essential requirements of fibre forming
polymers; Gross and fine structure of natural fibres like cotton, wool and silk.
Introduction to important bast fibres; properties and uses of natural and
man-made fibres; physical and chemical methods of fibre and blend identification
and blend analysis.
Molecular architecture, amorphous and crystalline phases, glass transition,
plasticization, crystallization, melting, factors affecting Tg and Tm;
Process of viscose and acetate preparation. Polymerization of nylon-6, nylon-66,
poly (ethylene terephthalate), polyacrylonitrile and polypropylene; Melt
Spinning processes, characteristic features of PET, polyamide and polypropylene
spinning; wet and dry spinning of viscose and acrylic fibres; post spinning
operations such as drawing, heat setting, tow-to-top conversion and different
Methods of investigating fibre structure e.g., Density, X-ray diffraction, birefringence,
optical and electron microscopy, I.R. absorption, thermal methods (DSC, DMA/TMA,
TGA); structure and morphology of man-made fibres, mechanical properties
of fibres, moisture sorption in fibres; fibre structure and property
Yarn manufacture and yarn structure & properties:
Principles of opening, cleaning and mixing/blending of fibrous materials, working principle of modern
opening and cleaning equipments; the technology of carding, carding of cotton
and synthetic fibres; Drafting operation, roller and apron drafting principle,
causes of mass irregularity introduced by drafting; roller arrangements in
drafting systems; principles of cotton combing, combing cycle, mechanism and
function, combing efficiency, lap preparation; recent developments in comber;
Roving production, mechanism of bobbin building, roving twist; Principle of ring
spinning, forces acting on yarn and traveler; ring & traveler designs; mechanism
of cop formation, causes of end breakages; working principle of ring doubler and
two for one twister, single and folded yarn twist, properties of double yarns,
production of core spun yarn, compact spinning, principle of non conventional
methods of yarn production such as rotor spinning, air jet spinning, wrap
spinning, twist less spinning and friction spinning.
Yarn contraction, yarn diameter, specific volume & packing coefficient; twist
strength relationship in spun yarns; fibre configuration and orientation in
yarn; cause of fibre migration and its estimation, irregularity index,
properties of ring, rotor and air-jet yarns.
Fabric manufacture and Fabric Structure:
Principles of cheese and cone winding processes and machines; random and
precision winding; package faults and their remedies; yarn clearers and
tensioners; different systems of yarn splicing; features of modern cone winding
machines; different types of warping creels; features of modern beam and
sectional warping machines; different sizing systems, sizing of spun and
filament yarns, modern sizing machines; principles of pirn winding processes and
machines; primary and secondary motions of loom, effect of their settings and
timings on fabric formation, fabric appearance and weaving performance; dobby
and jacquard shedding; mechanics of weft insertion with shuttle; warp and weft
stop motions, warp protection, weft replenishment; functional principles of weft
insertion systems of shuttle-less weaving machines, principles of multiphase and
Principles of weft and warp knitting; basic weft and warp knitted structures.
Classification, production and areas of application of nonwoven fabrics. Basic
woven fabric constructions and their derivatives; crepe, cord, terry, gauze,
leno and double cloth constructions. Peirce's equations for fabric geometry;
elastica model of plain woven fabrics; thickness, cover and maximum sett of
Sampling techniques, sample size and sampling errors. Measurement of fibre
length, fineness, crimp, strength and reflectance; measurement of cotton fibre
maturity and trash content; HVI and AFIS for fibre testing. Measurement of yarn
count, twist and hairiness; tensile testing of fibres, yarns and fabrics;
evenness testing of slivers, rovings and yarns; testing equipment for
measurement test methods of fabric properties like thickness, compressibility,
air permeability, drape, crease recovery, tear strength, bursting strength and
abrasion resistance. FAST and Kawabata instruments and systems for objective
fabric evaluation. Statistical data analysis of experimental results.
Correlation analysis, significance tests and analysis of variance; frequency
distributions and control charts.
Chemistry and practice of preparatory processes for cotton, wool
and silk. Mercerization of cotton. Preparatory processes for nylon, polyester
and acrylic and polyester/cotton blends.
Classification of dyes. Dyeing of cotton, wool, silk, polyester, nylon and
acrylic with appropriate dye classes. Dyeing polyester/cotton and polyester/wool
blends. Batchwise and continuous dyeing machines. Dyeing of cotton knitted
fabrics and machines used. Dye fibre interaction. Introduction to thermodynamics
and kinetics of dyeing. Methods for determination of wash, light and rubbing
fastness. Evaluation of fastness properties with the help of grey scale.
Styles of printing. Printing thickeners including synthetic
thickeners. Printing auxiliaries. Printing of cotton with reactive dyes.
Printing of wool, silk, nylon with acid and metal complex dyes. Printing of
polyester with disperse dyes. Methods of dye fixation after printing. Resist and
discharge printing of cotton, silk and polyester. Printing of polyester/cotton
blends with disperse/reactive combination. Transfer printing of polyester.
Developments in inkjet printing.
Mechanical finishing of cotton. Stiff. Soft, wrinkle
resistant, water repellent, flame retardant and enzyme (bio-polishing) finishing
of cotton. Milling, decatizing and shrink resistant finishing of wool.
Antistat finishing of synthetic fibre fabrics. Heat setting of polyester.
Minimum application techniques.
Environment pollution during chemical processing of textiles.
Treatment of textile effluents.
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