| 摘要 |
LOW STRESS FLAT END CLOSURE ARRANGEMENT FOR THERMOPLASTIC COATED PAPERBOARD CARTON A flat end closure arrangement for a paperboard carton which may include an aluminum foil barrier, wherein there are no overstressed folds and a minimum buildup of thicknesses, to minimize the tendency for fractures of the respective barriers to occur. Two oppositely disposed closure panles include provisions for the edge portions of their center segments to overlap one another, while being covered by the remaining two oppositely disposed closure panels. More specifically, the underlying closure panels each includes score lines which coverage toward the respective free edges of the panels, while one includes one horizontal score line connecting two parallel vertical score lines which define the center segment for folding back onto the closure panel beneath the center segment of the other closure panel. |
