A Causal Model of Fibre, Yarn, and Fabric Behaviour

Build a causal chain that separates intrinsic fibre properties from effects introduced by preparation, spinning, plying, and finishing.

Distinguish staple length, effective spinning length, and length distribution, and use them to anticipate fibre control during drafting.

Predict how fibre diameter and bending stiffness affect softness, coverage, yarn body, and handle.

Predict how crimp frequency and crimp character affect cohesion, elasticity, bulk, and alignment.

Explain how surface morphology and friction affect drafting control, slippage, and felting behaviour.

Distinguish tensile strength, extensibility, and elastic recovery and predict their different consequences in yarn.

Predict how moisture regain and wet behaviour affect processing, finishing, comfort, and dimensional stability.

Distinguish fibre density from assembled loft and relate each to yarn weight, drape, and thermal performance.