... toys, foods, pro-environment nonwovens bags, face masks, respirator (cup type masks, dust masks, disposable non-woven 3 ply face masks, etc)South Nekon ultrasonic lace sewing machine ... damage to fabric edge, and also can avoid deckle edge.3. Chang of the ultrasonic cutting die is very easy, ... of the fabric, also without the loose edge and hemming.3. No need pre-heating and can do continuous processing. ...