Coating Reduction
Material depletion from the surface of warp yarns during the weaving process occurs when protective coatings are abraded by machine components. In the production of linen fabric, flax sizing loss is the measurable reduction in the weight of the sizing agent as the yarn travels from the beam to the fell of the cloth.
Mechanical Attrition
Dust and debris found under the loom often consist of the particles shed during this friction. When flax sizing loss is excessive, the yarn becomes vulnerable to the mechanical stresses of high speed weaving. This leads to a higher frequency of loom stops for warp repairs.
Technicians measure the amount of size remaining on the cloth to evaluate the efficiency of the sizing recipe and the application method.
Desizing Requirement
Calculation of the percentage of material removed involves comparing the original size add-on to the amount present in the grey goods. While some flax sizing loss is inevitable, levels exceeding ten percent indicate an improper bond between the starch and the fiber. This data informs the chemical adjustments made in the sizing department.
Proper control of this loss ensures that the fabric meets the specifications for subsequent dyeing and finishing, and it prevents the accumulation of waste material that can interfere with the precision of the loom’s electronic sensors during high speed operations.