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.
Zweigle Hairiness
Protrusion Measurement
Quantification of the number and length of fiber ends protruding from the main body of a yarn strand identifies the surface texture and potential for pilling. Measuring zweigle hairiness provides a detailed profile of these protrusions across different length classes, from one millimeter to over ten millimeters. This data is a standard requirement for high-end linen weaving contracts.
Optical Counting
Optical sensors detect each fiber as it passes through a light beam, counting the interruptions to determine the height of the hair. While other systems give a single average value, this method produces a histogram that shows the distribution of long hairs versus short ones. The s3 value, which sums the hairs longer than three millimeters, is the most common metric used in zweigle hairiness to judge the quality of flax yarn.
Long hairs are particularly problematic because they can tangle during weaving.
Fabric Appearance
Yarn with low values for zweigle hairiness produces a smooth fabric and a crisp hand. Excessive hairiness leads to a fuzzy appearance and increases the risk of the yarn catching in the loom reed. Mills use this information to adjust the settings on the spinning frame and the winding machines.
If the results show a sudden increase in long hairs, it usually indicates a worn traveler or a problem with the ring. Consistent testing ensures that the final cloth meets the aesthetic standards of the garment industry.