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1.发明授权公开(公告)号：US12043451B2
公开(公告)日：2024-07-23
申请号：US17570142
申请日：2022-01-06
发明人： Sarah J Steenblock , Edward B Tucker , Matthew W Waldron , Lehai Minh Pham Vu , John Prusinski , Shaun T Broering , Deborah K Fix , Justin Zickus , David A Bailey , Jason R Maxwell , Michael G Borchardt
摘要： One or more implementations of a multi-film thermoplastic bag with a conjoined hem channel. For example, the multi-film thermoplastic bag includes a multi-film hem channel. Bonds secure the layers of the hem channel together so as to prevent a drawtape from inverting or bunching an inner layer of the hem channel during cinching. The bonds are thus located in a hem channel of a multi-film thermoplastic bag so as to reduce an amount of mechanical engagement between the films of the multi-film thermoplastic bag and another thermoplastic film such as a drawtape. In one or more implementations, a grab zone of the multi-film thermoplastic bag also includes bonds in the form of contact areas to provide tactile and visual cues of strength in the grab zone.
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公开(公告)号：US11891214B2
公开(公告)日：2024-02-06
申请号：US17625008
申请日：2020-07-13
发明人： Edward B Tucker , Robert T Dorsey , Ranyi Zhu , Theodore Cory Fites , Zeljko Vidovic , Michael G Borchardt , Jason R Maxwell , Shaun T Broering , Daniel C Peck
IPC分类号： B65D33/02 , B29C59/02 , B29C59/04 , B32B1/00 , B32B3/30 , B32B7/14 , B32B27/08 , B65D33/28 , B65F1/00 , B29K101/12 , B29L31/00
CPC分类号： B65D33/02 , B29C59/022 , B29C59/04 , B32B1/00 , B32B3/30 , B32B7/14 , B32B27/08 , B65D33/28 , B65F1/0006 , B29K2101/12 , B29L2031/7129 , B32B2439/06
摘要： Thermoplastic films and bags include gradient patterns of post-formation deformations. The gradient patterns of post-formation deformations can provide a connotation of strength. Additionally, the gradient pattern of post-formation deformations can provide different areas of the films or bags with different physical characteristics such as tear resistance, puncture resistance, elasticity, etc.
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