초록 ▼

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 fol

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.

대표청구항 ▼

[ What is claimed:] [1.] A method for forming a carton blank from a continuous laminate comprising at least a layer of a relatively rigid material and a layer of a relatively flexible fluid impervious material adhered to at least portions of said relatively rigid material comprising:dividing said co

[ What is claimed:] [1.] A method for forming a carton blank from a continuous laminate comprising at least a layer of a relatively rigid material and a layer of a relatively flexible fluid impervious material adhered to at least portions of said relatively rigid material comprising:dividing said continuous laminate into individual carton blanks;making modified cut lines and fold lines in said individual carton blanks to form in said relatively rigid material top and bottom panel portions, sidewall panel portions, a glue tab panel portion, and removable portions of said relatively rigid material;extending said modified cut lines through said relatively rigid material but not through said relatively flexible fluid impervious material; andremoving only said removable portions of said relatively rigid material at various locations defined by said modified cut lines so as to leave a desired carton blank.