INDUSTRIAL FABRIC AND METHOD OF WELDING SEAM AREA USING ULTRASONIC WELDING

摘要

The invention relates to ultrasonic welding of industrial fabrics. Specifically, the invention relates to methods for ultrasonically welding the seam area of industrial fabrics using a textured horn and/or anvil. The fabric edges are overlapped as woven or one or both edges can have some warp or weft yarns raveled out. The method involves ultrasonically bonding the overlapped fabric edges, reducing the caliper of the two stacked edges to match the body caliper of the fabric itself. The bonded area can then be perforated using laser or other mechanical means to produce a seam having the same woven texture and permeability (air and/or water) as the body of the fabric.

主权项

1. An industrial fabric having a length and a width, the fabric comprising:
a first edge of the fabric overlapped with a second edge of the fabric by a predetermined distance; wherein at least a portion of the overlapped area is welded using ultrasonic energy, and wherein the welded area has a texture or pattern similar to that of the fabric body.