Multi-Colour Weft Selection and Colour Selector Technology
topic
Weft colour selectors for rapier looms present different yarn colours to the rapier head using rotating finger selectors, tandem gripper presenters, or electromagnetic yarn deflectors that position the selected yarn at the presentation point for gripper pickup, with electronic control from the loom colour selection programme determining which colour is active for each pick, and with colour selector speed and reliability being critical for the fast colour changes at 600 picks per minute that high-speed rapier operation requires.
Role
Enables the multi-colour weft designs that are a major commercial application of rapier weaving by providing reliable high-speed colour selection that presents the correct yarn to the rapier gripper with the precision and consistency required for clean colour boundaries in the fabric, with colour selector reliability being a primary maintenance focus because a missed selection produces a wrong-colour pick defect that requires either fabric rejection or time-consuming pick correction.