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Paper – 1 (Textile Technology)
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Unit – I: Fibre Identification and Blend analysis
i) Textile fibre Classification.
ii) Fine, gross structure and properties of fibres
iii) Microscopic, physical and chemical test methods for fibre identification; blend analysis
iv) Morphology characterization – Density, XRD, Electron microscopy
v) Thermal characterization methods – DSC, DMA / TMA, TGA
Unit – II: Physical Properties of Fibres
i) Mechanical – Tensile, Elastic recovery,Time Effect, Bending,Twisting & Compression
ii) Optical – Absorption and dichroism, Reflection and lustre.
iii) Electrical and Thermal Properties – Dielectric property, Static Electricity, Structural changes in fibres on thermal treatment
Unit – III: Synthetic Fibre Spinning and Post Spinning Operations
i) Requirements of fibre forming polymers
ii) Spinning of Polymers – Melt Spinning, Wet spinning, Dry spinning
iii) Post Spinning Operations – Drawing, Crimping, Heat setting, Tow-to-top conversion, Texturing methods
Unit – IV: Spinning
i) Principles of opening, cleaning and mixing / blending of fibrous materials
ii) Draft and Drafting, Irregularity introduced by drafting
iii) Roller arrangements in drafting systems;
iv) Combing cycle, combing efficiency, lap preparation;
v) Mechanism of roving bobbin building, roving twist;
vi) Ring Cop formation, forces acting on yarn and traveller;
vii) Single and folded yarn twist, production of core spun / compact spun yarn.
viii) Alternate Spinning systems – rotor spinning, air jet spinning, friction spinning.
ix) Principles of long staple spinning – Jute, Wool
Unit – V: Weaving:
i) Warp winding – random and precision winding, winding parameters
ii) Yarn clearers and Tensioners; yarn splicing
iii) Types of warping – beam and sectional warping, pirn winding process;
iv) Sizing Techniques, sizing of spun and filament yarns
v) Primary, Secondary and Tertiary motions of loom, Loom timings.
vi) Tappet, Dobby and Jacquard shedding;
vii) Principles of Shuttleless Weft insertion systems.
viii) Principles of Circular and Multiphase weaving
ix) Basic woven fabric constructions and its derivatives
Unit – VI: Testing & Quality Control:
i) Sample selection techniques using statistics.
ii) Measurement of fibre length, strength , fineness, maturity
iii) HVI and AFIS techniques
iv) Determination of yarn count, twist and hairiness
v) Tensile testing of fibres, yarns and fabrics
vi) Evenness testing of slivers, rovings and yarns
vii) fabric properties – air permeability, drape, crease recovery, tear / bursting strength & abrasion.
viii) Objective Evaluation of fabric hand – FAST and KESF
ix) Statistical analysis of experimental results – Mean, SD, CV%
Unit – VII: Chemical Processing:
i) Preparatory processes for natural fibres, synthetics and common blends
ii) Dyeing of fibres using various dye classes.
iii) Batch-wise and continuous dyeing techniques
iv) Styles of printing. Printing thickeners and auxiliaries.
v) Printing of cotton with reactive dyes.
vi) Printing of polyester with disperse dyes.
vii) Mechanical and chemical finishing of cotton
Unit – VIII: Knitting & Garments:
i) Knitting – Yarn quality requirements, principles of weft knitting and warp knitting
ii) Basic weft and warp knitted structures and its properties
iii) Garments – Pattern making, Spreading, Cutting, Marker efficiency
iv) Stitches and Seams
v) Types of Sewing machine
vi) Sewing thread attributes
vii) Inspection and Merchandising
Unit – IX: Nonwovens & Technical Textiles:
i) Nonwovens – Web formation
ii) Bonding methods – mechanical, thermal and chemical.
iii) Finishing and Application of nonwovens
iv) Technical Textiles – Property requirements
v) Industrial Textiles – Belts, Ropes, Tyre-cords, Coated abrasives
vi) Automotive Textiles – Filter fabrics, Airbags, Carpets
vii) Geotextiles – Applications in civil engineering
viii) Agriculture Textiles – Crop covers, bird nets, soil mats and sacks
ix) Packaging Textiles – Food packing and bags.
Unit – X: Textile Management & Environment Conservation:
i) Industrial Engineering – Work study, method study,
ii) Costing – Elements, Balance sheet, P & L Account
iii) Tools – TQM, 5S, Kaizen, MIS.
iv) Marketing Management
v) Industrial relations and Labour laws
vi) Energy conservation in textile production process,
vii) Characteristics of Effluent
viii) Effluent treatment.
General Textile Technology books, which will help you in your exam preparation
Paper – 2 (Tamil Language, General Studies)
Part – A : Tamil Eligibility Test
This section contains 100 questions for 150 marks.
Part – B : General Studies | Aptitude and Mental Ability Test
TNPSC General Studies and Aptitude Test Combined Book (See the books given below)
Interview will be conducted for shortlisted applicants as per their performance in Paper-1 and Paper-2.
Interview contains maximum 60 marks. You need to prepare well for the interviews. You can take help of books mentioned below to improve your interview performance.
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