Tamil Nadu HSE First Year Textile Technology study plan

Classify textile fibres into natural (vegetable, animal, mineral) and man-made (regenerated, synthetic), giving at least two named examples inside every sub-group

Draw and label the morphology of a cotton fibre (cuticle, primary wall, secondary wall, lumen, convolutions) and state how each layer affects strength and dye absorption

Compare cotton, silk, wool, polyester and viscose across ten parameters: tenacity, elongation at break, moisture regain, specific gravity, elastic recovery, abrasion resistance, flammability, dyeability, action of acid, action of alkali

Distinguish staple and filament yarn structure and explain why fibre length, fineness and maturity change yarn strength and spinning limits

Build a one-page property matrix for the five fibres and mark where each fibre suits apparel, furnishing or industrial end-use

Explain fibre length parameters (mean length, upper half mean length, span length, short fibre percentage) and maturity coefficient, and state how each changes spinning performance

Write the complete cotton spinning flow from bale to ring yarn, naming the input and output material form at every stage

State the objectives of ginning and blowroom and calculate blowroom cleaning efficiency from given waste percentages

Identify the organs of a blowroom line (bale opener, mixer, condenser, cleaner, lap former) and give the function of each organ in one sentence

Describe the carding action between cylinder and flats, state the objectives of carding, and explain how carding affects neps, trash and fibre orientation

Calculate draft, draft constant and card production per shift from given doffer speed, diameter and hank

Explain the purpose of drawing (drafting plus doubling) and compute doubling, total draft and resultant hank for a two-delivery draw frame

State the objectives of combing and distinguish comber noil from flat strips in terms of fibre content and reuse value

Convert yarn counts freely between Ne, Nm, tex and denier for both direct and indirect systems

Explain the objectives of roving and the function of flyer, bobbin, builder motion and differential motion in the speed frame

Describe ring spinning as a combined drafting, twisting and winding process, and state the function of ring, traveller and spindle tape

Calculate twist per inch from TPI = twist multiplier × square root of Ne, and calculate ring frame production in kg per shift

Identify the five primary loom motions (shedding, picking, beating-up, let-off, take-up) and state what each motion does to the warp or weft

List the guarding and safe-working precautions required around ring frames and power looms

Compare tappet, dobby and jacquard shedding on mechanism, pattern capacity and the fabric range each suits

Explain picking by shuttle, projectile, rapier and air-jet, and state one advantage and one limitation of each method

Draw plain weave, 2/1 twill and five-end satin on point paper and work out the interlacement pattern and repeat size of each

Compute fabric GSM, cover factor and the relationship between warp and weft count and fabric weight for a given construction

Explain the stitch formation cycle in weft knitting and state how warp knitting differs from weft knitting in structure and production rate

Sequence the chemical processing route (singeing, desizing, scouring, bleaching, mercerising, dyeing, printing, finishing) and state the purpose of each stage

Explain the chemistry of scouring and describe the iodine test that confirms starch has been removed after desizing

Classify direct, reactive, vat, acid, basic and disperse dyes and match each dye class to the fibre it is normally applied to

Compare exhaustion dyeing, pad-batch and pad-dry-cure in terms of liquor ratio, time, levelness and suitable fabric type

Describe screen, roller, block and transfer printing and give one suitable end-use product for each method

Select the correct test method and instrument for yarn count, twist, single yarn strength, unevenness, fabric GSM, crimp, abrasion and colour fastness

Compute coefficient of variation and mean from a set of ten test readings, and explain the role of sampling and standard atmosphere in testing

Describe the working principle of a tensile tester, an evenness tester and a twist tester, listing the parameters each records

Explain preventive maintenance in a spinning mill: lubrication schedule, bearing types, belt tension, gear inspection and machine history records

Identify the unguarded nip and entanglement hazards on carding, ring frame and loom, and name the guard or interlock used at each point

Explain mill safety rules covering machine guarding, lock-out and tag-out, personal protective equipment, noise limits and fire precautions in a textile unit

Describe the sources of textile effluent and the parameters treated in an effluent treatment plant: pH, BOD, COD, suspended solids and colour

Outline the steps to start a small textile unit: product choice, market survey, machinery costing, licences, power connection and sources of finance

Revise all seven domains from the error notebook and sit one full-length timed paper under exam conditions