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公开(公告)号:US20200171756A1
公开(公告)日:2020-06-04
申请号:US16614774
申请日:2018-05-18
发明人: Stefan RENNER , Manfred STROBEL , Andreas WAGNER
摘要: The invention relates to a method for the ultrasonic welding of a strip consisting of a plastic material for the production of cigarette products, in which method the strip has two free ends which are heated in a connection region by means of ultrasound and joined together to form a closed strip. Ultrasound at a frequency of more than 22 kHz is used.