Mechanical Separation
Mechanical separation of flax filaments occurs through the longitudinal splitting of technical fibre bundles into finer elementary components. This bundle cleavage determines the spinning limit of the linen yarn by reducing the diameter of the raw material. Excessive force during this stage risks shortening the staple length.
Fibre Quality
High quality scutched flax exhibits a natural propensity for splitting without suffering transverse breakage. If the bundle cleavage is insufficient, the resulting yarn appears coarse and contains frequent slubs. Refined hackling schedules promote this division to achieve the delicate counts required for premium shirting fabrics.
Processing Efficiency
The degree of separation affects the waste ratio in the preparation department. When bundle cleavage happens uniformly, the mill maintains a higher yield of long-line fibre. Conversely, irregular splitting leads to an increase in tow production and reduces the overall profitability of the spinning lot while increasing the volume of secondary tow fibre.
A balanced moisture content in the flax helps manage this physical transition by ensuring that the pectin binding the fibres together is soft enough to permit separation without shattering the woody core. This lubrication of the cellular structure is achieved through controlled atmospheric conditioning within the mill walls.
