Abstract: A method for inspecting a non-woven material is provided. The method comprises introducing, by a sonotrode, ultrasonic energy to weld the non-woven material, supporting, by an anvil roll, the non-woven material between the anvil roll and the sonotrode, rotating the anvil roll to transfer the non-woven material in a downstream direction, taking, by an imaging unit disposed downstream of the anvil roll, an image of the non-woven material, and processing the image by an image processing unit. The image processing unit comprises identifying a defect based on the image, classifying the defect into one of a plurality of categories, analyzing a cause of the defect based on the respective category, determining a component causing the defect, and notifying the cause with a recommended remedial action associated with the component.