How does a fabric s weight affect an ultrasonic bond?
If your fabric weighs more than 2 ounces per square yard, it s easy to create a bond with 20 kHz ultrasonic equipment. For fabrics weighing less than 2 ounces per square yard, the high amplitude of 20 kHz ultrasonics equipment can burn a hole in them. It s better to use a 40 kHz ultrasonic system, which is designed for more delicate assembly operations.
