Construction Parameter
Fabric structural density is determined by the spacing of yarn elements in a loom setup to establish the target weight and hand of the woven material. The density sett dictates the number of warp ends per unit width, typically measured in ends per inch or ends per centimetre. This parameter is specified before the warp beam is mounted on the loom.
A correct density sett prevents excessive thread abrasion and avoids high warp breakage rates during shedding.
Weaving Calculation
Loom setups require a precise calculation of reed numbering to distribute the yarn evenly across the width. If the density sett is too dense for the selected yarn count, the warp threads will crowd and bind. Conversely, a sparse arrangement results in an unstable fabric structure that tends to slip under low tensile stress.
Mill Verification
Inspection of grey goods confirms that the woven count matches the technical specification. A counting glass or digital density scanner verifies the density sett at multiple points across the width of the fabric roll. Discrepancies exceeding two percent require tension adjustments at the loom.
Fabric Performance
Sizing calculations depend on this thread distribution. The yarn coating rate varies according to the density sett. High yarn densities limit the penetration of the sizing compound.
