公开(公告)号：USD813054S1

公开(公告)日：2018-03-20

申请号：US29548750

申请日：2015-12-16

申请人： The Glad Products Company

设计人： Mark D. Pszczolkowski ,  Ronald J. Cisek ,  Dean Ferracane ,  Jack F. Melvan ,  Sarah A. Kahl ,  Michael G. Borchardt

CPC分类号： B29C47/0057 ,  B29C53/285 ,  B29C55/023 ,  B29C55/06 ,  B29C55/065 ,  B29C55/18 ,  B29D7/01 ,  B29K2023/0625 ,  B29K2023/12 ,  B29K2105/256 ,  B29K2995/0097 ,  B29L2007/00 ,  B29L2007/008 ,  B29L2016/00 ,  B31B70/008 ,  B31B70/874 ,  B31B70/88 ,  B31B2155/00 ,  B31B2155/0014 ,  B31B2160/10 ,  B31F1/26 ,  B32B3/30 ,  C08J5/18 ,  C08J2323/06 ,  Y10T428/1324 ,  Y10T428/1334 ,  Y10T428/1345 ,  Y10T428/1352 ,  Y10T428/24355 ,  Y10T428/24446 ,  Y10T428/24471 ,  Y10T428/24479 ,  Y10T428/24537 ,  Y10T428/2457

摘要： Methods of incrementally stretching thermoplastic films in the machine direction include elongating the films in the machine direction without reducing the films' machine-direction tear resistance. In one or more implementations, methods of incrementally stretching thermoplastic films include reducing the gauge of the films without reducing the films' machine-direction tear resistance. The methods can involve cold stretching the films and imparting transverse-direction extending linear rib pattern into the film. The linear ribs can have alternating thick and thin gauges. Incrementally stretched thermoplastic films can have a machine-direction tear resistance that is equal to or greater than the machine-direction tear resistance of the film prior to stretching.