Yarn Clearing
Automatic winding machines utilize specialized sensor systems to detect synthetic contaminants in cotton yarns that would otherwise go unnoticed. The installation of the uster quantum polyolefin sensor allows yarn spinners to identify white or transparent polypropylene and polyethylene fibers within the cotton yarn stream during the winding process. This specialized detection prevents synthetic materials from causing dyeing failures in the final fabric.
Because these synthetic fragments are chemically inert, they do not absorb cotton dyes and leave uncolored spots in the finished garment. This sensor is the primary defense against such defects.
Optical Measurement
Optical measurement systems scan the passing yarn under multiple lighting angles. While standard sensors scan for color differences, the uster quantum polyolefin sensor detects the unique light scattering properties of the polyolefin fibers. This ensures that even clear plastic fragments are located.
Defect Elimination
Once the sensor identifies a synthetic fiber, the system cuts the yarn and removes the contaminated section. The winding unit then splices the clean yarn ends back together. This localized removal prevents long synthetic contaminants from being woven or knitted into the fabric.
Spinning Mills
Spinning mills must balance the sensitivity of the sensor with the productivity of the winding machine. Setting the clearing limits too aggressively can result in unnecessary cuts, which reduces winding efficiency and creates too many splices. Proper adjustment ensures the yarn meets high quality standards without hurting throughput.
