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sci.yarn-twist-factor Calculator
Calculates yarn twist factor (twist multiplier) TM = twist/√count from twist per unit length and linear density, and predicts strength-twist relationship. Maximum yarn strength occurs at an optimal twist — too little twist reduces cohesion; too much causes spiral stress concentration and fibre breakage.
Inputs
Twist Per Meter
Reference formula or conversion factor shown for context.
Yarn Count Tex
Reference formula or conversion factor shown for context.
Fiber Density G Cm3
Mass per unit volume (kg/m³). Water: 1,000. Air: 1.225. Steel: 7,850. Affects buoyancy, flow, and structural loads.
Results
twist factor α
A dimensionless multiplier applied in the calculation.
yarn diameter (mm)
The computed diameter -- twice the radius.
twist per cm
Reference formula or conversion factor shown for context.
twist factor range
A dimensionless multiplier applied in the calculation.
α = T·√(tex/1000)
Reference formula or conversion factor shown for context.