BCF Yarn Bundle Tacking for Axial Color Variation

The patent applies preliminary action by incorporating color variation directly into the extrusion process before yarn production. Multiple polymer streams with different colors are fed through separate extruders and spun into bundles simultaneously, eliminating the need for post-production space dying. This preliminary color integration resolves the contradiction by achieving color variability without additional production time.

The patent segments the color application process by using multiple independent extruders, each processing a different colored polymer stream. These segmented streams are then combined into single yarns with multiple colored bundles. This segmentation allows parallel processing of different colors, maintaining production efficiency while achieving the desired color variability.

The patent applies preliminary action by pre-coloring the polymer materials before extrusion. The colored polymers are processed through extruders and spun into filaments that retain their color throughout the cross-section. This eliminates the penetration uniformity problem inherent in post-production space dying, as the color is uniformly distributed at the molecular level during polymer processing.

The patent replaces the mechanical/chemical space dying process with a polymer processing approach. Instead of applying dye to finished yarns, the color is incorporated into the polymer material itself during extrusion. This substitution eliminates dye penetration issues while maintaining color variation through the use of multiple colored polymer streams.

The patent merges multiple colored polymer streams into single yarns by combining multiple extrusion-spinning operations. Each extruder processes a different colored polymer, and the resulting bundles are tacked together to form a single yarn containing multiple color variations. This merging approach achieves color diversity while using standard textile processing equipment, managing complexity through integration rather than requiring entirely new systems.

The patent applies universality by using standard extrusion and spinning equipment for multiple colored polymer streams. The same basic machinery processes different materials (colored polymers) to produce differentiated outputs (multi-colored yarns). This multi-functionality approach handles color variation without requiring specialized equipment for each color, thereby managing process complexity.