Tension Capacity
Tensile strain at rupture represents a primary mechanical property for evaluating the structural integrity of scutched flax during processing. Measurement of bast fiber elongation quantifies the percentage increase in length that a fiber bundle undergoes before breaking under an applied load. This value indicates the elastic reserve of the raw material.
Low elasticity causes frequent breaks.
Quality Grade
Variation in agricultural growing conditions directly affects the molecular structure of the cellulose chains within the plant cell wall. In a laboratory test conducted at standard atmosphere of twenty degrees Celsius and sixty-five percent relative humidity, bast fiber elongation is recorded using an electronic tensile tester. Higher extension rates are preferred for wet spinning.
Spinning Performance
Fibres with poor elastic stretch cause excessive yarn breakage during the drafting and spinning phases, lowering the overall efficiency of the mill. Wet spinning lines require a minimum extension threshold to maintain high operating speeds because the drafting force must not exceed the cohesive strength of the softened fiber bundles. Adjusting the temperature of the wetting bath can partially mitigate the risks of low bast fiber elongation by softening the pectin binder.
This adjustment allows the fibers to slide past each other more easily without fracturing, reducing the frequency of costly machine stoppages during high-speed yarn production.
