Textile Engineering and Fibre Science
Linear Algebra: Matrices and
Determinants, Systems of linear equations, Eigen values and eigen vectors.
Calculus: Limit, continuity and
differentiability; Partial Derivatives; Maxima and minima; Sequences and series;
Test for convergence; Fourier series.
Vector Calculus: Gradient;
Divergence and Curl; Line; surface and volume integrals; Stokes, Gauss and
Diferential Equations: 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.
Numerical Methods: Solutions of
linear and non-linear algebraic equations; integration of trapezoidal and
Simpson’s rule; single and multi-step methods for differential equations.
AND FIBRE SCIENCE
Textile Fibres: 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
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 texturing methods.
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 correlation.
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
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 woven fabrics.
Textile Testing: 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.
Preparatory Processes: Chemistry
and practice of preparatory processes for cotton, wool and silk. Mercerization
of cotton. Preparatory processes for nylon, polyester and acrylic and
Dyeing: 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.
Printing: 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.
Finishing: 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.
Energy Conservation: Minimum
Pollution: Environment pollution
during chemical processing of textiles. Treatment of textile effluents.