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Ultrasonic seaming of spunbonded polyolefin sheet material
- 출판일1999.11
- 저자
- 서지사항
- 등록일 2016.11.02
- 조회수 363
A method for ultrasonically joining flashspun bonded polyolefin sheets and a seam generated by the method is provided. The method includes the steps of overlapping at least two polyolefin sheet edges, and connecting the overlapped edges by feeding the overlapped portions between an ultrasonic horn and a patterned backup roll. The connected first and second sheet edge portions have a tensile strength across the overlapped and welded portion that is at least 75% of the tensile strength of the sheet material joined. The seam is generated with just one pass between the ultrasonic horn and the patterned backup roll. IPC B32B.
