Elective paper · Year 3 · Sem 6

Fibre to Fabric

3 credits5 units · 26 topicsInternal 25Exam 75

Prep tip

Almost every long answer here earns extra marks for a labelled sketch: the fibre under the microscope, a flow chart of the process, the loom, a weave drawn on squared paper or the knit loops. Learn each process as a numbered chain and end with one everyday use or care point.

Suggested order: Unit I, then II, then III, then IV, and V last.

Units

Unit I0 of 6 read

Textile fibres

6 sheets · about 52 min reading

Classification and identification of textile fibres9 min Properties of textile fibres: primary and secondary8 min Cotton: cultivation, processing, properties and uses8 min Silk: sericulture, properties and uses9 min Wool: production, properties and uses8 min Rayon, nylon and polyester: manufacture, properties and uses10 min

Unit II0 of 5 read

Yarns

5 sheets · about 38 min reading

Yarn: definition and types8 min Spinning on the cotton system: opening to roving8 min Ring spinning and rotor spinning7 min Yarn twist and its types6 min Yarn count and numbering systems: denier and tex9 min

Unit III0 of 5 read

Woven fabric construction

5 sheets · about 40 min reading

Weaving terms: warp, weft, grain, selvedge and fabric count6 min Parts of a simple loom and basic weaving operations8 min Plain weave and its variations7 min Twill, satin and sateen weaves9 min Decorative weaves: dobby, jacquard, leno, swivel, pile and double weave10 min

Unit IV0 of 5 read

Other methods of fabric construction

5 sheets · about 36 min reading

Knitting: terms, and knitted versus woven fabrics7 min Weft knitting and warp knitting9 min Non-woven fabrics: manufacture and web formation8 min Bonded fabrics, felts and care of non-wovens7 min Braids, nets, laces, films and tufted fabrics5 min

Unit V0 of 5 read

Finishing

5 sheets · about 36 min reading

Finishes: definition and classification8 min Scouring and bleaching7 min Tentering and calendering7 min Sizing and mercerizing7 min Napping and sanforizing7 min

How the 100 marks split

Internal · Tests (best 2 of 3)10

Internal · Attendance5

Internal · Seminar5

Internal · Assignment5

End-semester exam75

Total100

The usual internal split. Your college may differ.Practise a model paper