Laminated composite material having perforated inner layer...

Details Laminated composite material having perforated inner layer... Laminated composite material having perforated inner layer...

B - Operations, Transporting

31

B

154/134, 154/30.

B31B 7/14 (2006.01) B31B 1/24 (2006.01) B31B 1/74 (2006.01) B31B 7/00 (2006.01) B31B 15/00 (2006.01) B32B 27/10 (2006.01) B65D 5/00 (2006.01) B65D 5/06 (2006.01) B65D 65/40 (2006.01) B65H 23/188 (2006.01)

Patent

CA 1281978

A B S T R A C T A device and method for forming a moving web of laminated composite material having weakened zones therein from a moving continuous web of relatively extensible plastic film material, having identical sets of graphics printed on nominally constant length repeat length portions thereof which are subject to length variation from a constant design repeat length distance, and a moving continuous web of relatively nonextensible paper material. A method and device for forming a three-layered composite material having weakened zones therein is also described. Carton blanks and liquid tight cartons having tear away tab portions formed from such three- layered composite material are also described.

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