A Dukane patented process where elastic strands are entrapped between the two layers of Nonwoven materials using ultrasonic energy. Ultrasonic Energy produces clean molecular bonds next to the elastic strands that directly entraps tensioned elastic within the fabric.
As shown in the video tensioned elastic strands pull the nonwoven material down into the very small grooves that are created with the entrapment pattern on the anvil. When bonded material leaves the process, the strands retract and become larger in diameter; therefore, are entrapped in that very small area.
The elastic strand are firmly secured between the nonwoven substrates without adhesive. The resultant fabric (composite) is robust to temperature, time and end used emollients maximizing product performance.