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.
Tension Retention
Material Stability
Ability of a yarn or fabric to maintain its applied mechanical force over time under a constant strain determines the long-term shape retention and recovery of stretch garments. Good tension retention ensures that garments like athletic wear and shapewear do not loose their holding power after repeated use. This property is dictated by the polymer structure of the elastic fiber.
Elastic Performance
Fabrics made with high quality elastomeric yarns are designed to withstand repeated stretching. The tension retention of these fabrics ensures that they return to their original dimensions, preventing the garment from becoming baggy at the knees or elbows. This durability is highly valued by consumers of activewear.
Sewing and Tailoring
During garment assembly, the fabric must maintain consistent tension to ensure straight seams and flat hems. Poor tension retention in the fabric can lead to seam puckering and distortion after the sewing tension is released. This issue is prevented by allowing the fabric to relax after spreading.
Laboratory Testing
Standard stretch and recovery tests measure the force required to hold a fabric specimen at a specific elongation. By tracking this force over multiple cycles or hours, technicians evaluate the tension retention of the material. A high retention percentage indicates that the fabric will maintain its shape and performance throughout its lifecycle.