Equilibrium Moisture Content

Ambient Interaction

Changes in the relative humidity of the spinning mill trigger an immediate response in the moisture level of the flax. To achieve equilibrium moisture content, raw flax must remain in a controlled conditioning room for at least twenty four hours before strength testing. This conditioning ensures that subsequent test results are comparable across different laboratories.

Standard testing environments are typically maintained at sixty five percent relative humidity and twenty degrees Celsius.

Mechanical Consequence

Moisture levels within the fibre directly affect its elasticity and tensile strength. When the equilibrium moisture content is too low, the linen becomes brittle and prone to breaking on the loom during weaving. Maintaining a slightly higher humidity level in the weaving shed prevents these structural failures, supporting high production speeds and reducing loom downtime.