Quantifying Epicuticular Wax Mass Fractions in Dew-Retted Line Flax Bales
Quantifying epicuticular wax mass fractions in dew-retted line flax bales isolates true fiber yield and optimizes wet-spinning boundary lubrication parameters.
Traveler Wear
Component Erosion
Physical degradation of the small metal or plastic clip that guides the yarn onto the bobbin during ring spinning results from high speed contact with the ring. Because the traveler moves at extreme velocities, traveler wear is a constant concern for mill maintenance. This erosion alters the tension of the yarn as it is being spun.
Friction Heat
Heat generated by friction is the primary cause of the thinning of the metal surface. In linen spinning, the abrasive nature of the flax fiber can accelerate traveler wear compared to smoother fibers. When the surface becomes rough or thin, it no longer glides smoothly, causing the yarn to snap.
Regular replacement schedules are necessary to prevent the loss of production efficiency.
Quality Consequence
Changes in the profile of the traveler affect the wind-on tension and the twist distribution of the yarn. If traveler wear is ignored, the resulting bobbins will have inconsistent density and more surface hairiness. Monitoring the heat of the rings and the frequency of yarn breaks provides an indirect measure of the state of these components.
Using specialized lubricants or harder coatings can extend the life of the part. The cost of frequent replacements is weighed against the risk of producing low quality yarn that fails the buyer’s strength tests.