| 摘要 |
PURPOSE: To obtain more efficient ultrasonic sealing by using, during a pouch filling process, a process for ultrasonic-sealing a pouch container, and by using an assembly of an ultrasonic horn and an anvil as a means for sealing and cutting a thermoplastic film. CONSTITUTION: A pouch 10 has a rear face 11, a lengthwise seal 12, a bottom seal 13 and a top seal 14. A first step for a film is performed by overlapping respective end rims of the film to form joints. The joint is passed through an ultrasonic horn and an anvil of a lengthwise ultrasonic sealer. Since the joint is positioned between the ultrasonic horn and the anvil, when pressure and ultrasonic energy is applied to the ultrasonic horn and/or the anvil, a thermoplastic material is heated at the joint to be joined. Following this step, the film is of a tubular form. Concurrently, a side joint is sealed to form a top joint of the pouch, and a bottom seal is further formed on a pouch below. |
