METHOD FOR FORMING CARTON BLANKS - GRAPHIC PACKAGING CORP

Title:

METHOD FOR FORMING CARTON BLANKS

Document Type and Number:

WIPO Patent Application WO1997006059

Kind Code:

A3

Abstract:

A method for forming carton blanks from a continuous laminate having at least a layer of a relatively rigid material and a layer of a relatively flexible fluid impervious material by dividing the continuous laminate into individual carton blanks and at the same time making modified cut lines and fold lines in the individual carton blanks to form top and bottom panel portions, sidewall panel portions and a glue tab panel portion, wherein the modified cut lines extend through the relatively rigid material but not through the relatively flexible fluid impervious material and then removing only the relatively rigid material at various locations to leave the desired carton blank. In some instances, the laminate will contain continuous strips of a relatively flexible material between the relatively rigid material and the relatively flexible fluid impervious material and secured only to the relatively flexible fluid impervious material.

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Inventors:

WALSH JOSEPH C

Application Number:

PCT/US1996/012797

Publication Date:

April 10, 1997

Filing Date:

August 06, 1996

Export Citation:

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Assignee:

GRAPHIC PACKAGING CORP (US)

International Classes:

B31B50/16; (IPC1-7): B65B/

Foreign References:

US5092516A	1992-03-03
US5363981A	1994-11-15

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