发明名称 |
Ultrasonic method of producing a score in a thermoplastic film pouch |
摘要 |
A method of creating a score in a pouch formed from a thermoplastic film is described. Ultrasonic energy is used to create the score in a film that is later formed into a pouch. The score can be used to open the pouch by pulling opposite sides of the scored area. The ultrasonic force is applied to the film as a part of a downstream process in a blown film manufacturing line to produce the pouch.
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申请公布号 |
US5202065(A) |
申请公布日期 |
1993.04.13 |
申请号 |
US19910683638 |
申请日期 |
1991.04.11 |
申请人 |
BAXTER INTERNATIONAL INC. |
发明人 |
LENANDER, JOHN G.;HINLEY, ROBERT W. |
分类号 |
B26D1/06;B26D3/08;B26D5/08;B26D7/08;B29C37/00;B29C59/00;B29C65/08;B29C65/74;B31B1/25;B65D81/34 |
主分类号 |
B26D1/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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