Quantifying Anti Friction Lubricant Protection Limits for Elastane Cores under High Drag Jet Processing
Sustaining a 1.8 percent ester lubricant film on elastane cores prevents elastomeric rupture when jet nozzle pressure exceeds 2.2 bar.
Processing Drag
Frictional Resistance
Cumulative mechanical resistance encountered by yarn or fabric as it passes through guide rollers, tensioners and processing baths determines the tension profile of the manufacturing run. High processing drag causes excessive tension, which leads to yarn breakage or fabric deformation during continuous processing. This drag must be managed using lubricants and polished guides.
Yarn Spinning
Yarn winding and warping machines operate at extremely high speeds where friction must be kept to a minimum. The presence of processing drag on the yarn line can cause yarn abrasion and create fly waste on the production floor. Applying a wax or lubricant to the yarn reduces this drag and improves winding efficiency.
Wet Processing
In continuous fabric dyeing and finishing ranges, the fabric must be pulled through multiple wet treatment baths. If the guide rollers in these baths do not turn freely, the resulting processing drag stretches the fabric, leading to shrinkage issues in the finished garment. Properly balanced and driven rollers are necessary to minimize tension.
Control Strategies
Production lines use tension sensors and speed synchronized drives to monitor and adjust the movement of the material. To reduce processing drag, mills use ceramic or polished steel yarn guides that offer low friction. Regular maintenance of these guides ensures that the yarn or fabric moves smoothly without suffering damage.