Fibres and Yarns
This is where every garment starts. You learn what a fibre actually is, how it becomes yarn, and why the count and twist on a fabric spec decide how the garment feels, how long it lasts, and what it costs.
After this track you can
You can read a yarn specification and say what it will do in the finished garment: hand, strength, pilling, shrinkage, and price. And you can challenge a fibre choice or a count on a tech pack before it reaches a cost sheet.
5 courses · 9 h 21 min
- 1.1Natural Fibres: Cotton, Wool, Bast and SilkFoundation3 lessons · 2 h 10 minYou meet the four natural fibre families the way a factory and a buying office actually meet them. You learn what the numbers on a cotton bale, a wool test certificate, and a silk grade control, and what each fibre choice does to the garment and to the FOB.
- 1.2Man-Made and Synthetic FibresFoundation3 lessons · 2 hYou look at the fibres made in a factory rather than grown in a field. You see what the making route does to shrinkage, strength, and feel. You learn to read denier, filament count, and an elastane percentage off a tech pack, and what each fibre costs by the time it reaches FOB.
- 1.3Yarn Formation and CountsFoundation3 lessons · 1 h 42 minYou see how fibre becomes yarn, and how to write that yarn down. You take the four spinning routes and what each does to strength, fuzz, and price; the count systems and how to convert between them; and the twist that decides whether a T-shirt twists on the body after washing.
- 1.4Yarn Quality and FaultsPractitioner3 lessons · 1 h 50 minYou read one delivery of combed cotton yarn, certificate by certificate, against Uster Statistics. You follow it to the streaky fabric it produced three weeks later, and to the four costed ways out.
- 1.5Blends and Why They ExistPractitioner3 lessons · 1 h 39 minYou see why fibres are mixed, what a ratio actually buys, and where blends go wrong. You cost four constructions to FOB, trace a dye failure back to a yarn that was plied rather than intimate, and look at a declared 95/5 that tested 92/8 at a border.
Track exam
10 questions drawn from a larger bank, across the courses in this track, passed at 70%. 3 attempts, then it locks for 7 days. It is worth finishing the courses first.
Sit the track exam