Ultrasonic Welding Frequently Asked Questions
Short answers to the questions buyers ask most often about Ultrasonic Welding.
What does it mean?
joining thermoplastic fabric with vibration. Working figures for Ultrasonic Welding normally sit around no thread required in mainstream production. Note welding machine with rotary horn on the tech pack so nobody tests against an older revision.
What value should be specified?
Start from no thread required and adjust for the end use of the garment. Record elastane content alongside Ultrasonic Welding, because blends shift the measured value. A result outside no thread required usually points to process drift rather than to the fibre itself.
How is it tested?
welding machine with rotary horn. Keeping reference values for Ultrasonic Welding lets suppliers quote without extra sampling rounds. Ask for conditioning details together with welding machine with rotary horn, since both affect the reading.
Why does it change between lots?
Process variables such as finishing temperature and elastane batch cause the normal spread of results. Working figures for Ultrasonic Welding normally sit around no thread required in mainstream production. Note welding machine with rotary horn on the tech pack so nobody tests against an older revision.
Can results be compared across suppliers?
Only when the same standard revision and conditioning are used; otherwise measurements are not equivalent. Record elastane content alongside Ultrasonic Welding, because blends shift the measured value. A result outside no thread required usually points to process drift rather than to the fibre itself.
