Sizing Add-on

Protective Mechanism

Flax yarn is naturally hairy and has low elasticity, which makes it vulnerable to shedding and breaking under the constant friction of the loom healds. Maintaining the correct sizing add-on ensures that a uniform film coats the yarn surface to bind loose fibers together. This protective layer increases the yarn’s tensile strength and reduces friction as the warp yarns slide past each other during shedding.

If the amount of size is too low, the yarn remains unprotected and frays, whereas excessive sizing makes the yarn brittle and stiff.

Desizing Process

Linen cloth must undergo a washing phase to remove this temporary protective coating before the fabric can be dyed or finished. An appropriate sizing add-on simplifies this subsequent desizing stage, reducing chemical and water usage in the finishing plant. Ensuring consistent coating levels remains a priority for efficient linen manufacturing.