Chiengora Fiber Lab: Thermal Retention vs Elasticity Simulator

Microstructure & Mechanical Test Bench Drag puller or adjust sliders

Presets:

Physics Insight: Dog hair fibers contain hollow air-filled medullary cores that trap dead air (k_air ≈ 0.026 W/m·K), delivering up to +80% thermal insulation over wool. However, dog hair has straight keratin alignment lacking sheep wool's helical crimp springs, resulting in high permanent plastic sag if spun pure.

Yarn Blend & Environmental Parameters

Dog Hair (Chiengora): 60%

Tensile Load: 15 N

Ambient Temp: -5°C

Wind Chill Velocity: 10 km/h

Thermal Insulation

1.62 clo

+48% vs std wool

Heat Loss Flux

22.8 W/m²

Skin 37°C → Ambient

Elastic Recovery (20% Strain)

88%

Crimp Index: 6.4/10

Yarn Drape & Sag Risk

Low Sag

Stable Memory

Engineering Verdict: High warmth retention with balanced structural elasticity suitable for winter apparel