Easy-opening ream wrap

摘要

A protective wrap material enclosing a stack of cut sheets of paper is folded so that overlapping flaps of the wrap material cover opposite ends of the stack. The overlapping flaps are secured and sealed together only at selected areas that comprise a minor portion of the overlapped flaps, wherein the sealed areas have sufficient burst strength to avoid inadvertent opening of the wrap but at the same time are relatively easy to separate when it is desired to open the wrap to gain access to the cut sheets of paper. In a preferred embodiment the wrap material is heat sealable, and a modified heat plate for applying heat only to the selected areas has a grooved front surface defining heat focusing bars that concentrate heat sufficient to fuse the wrap material only in the selected areas.

主权项

1. A stack of cut sheets of paper wrapped with a protective wrap material enclosing the stack and folded so that overlapping flaps of the wrap material cover opposite ends of the stack, said overlapping flaps being secured and sealed together only at selected areas that together comprise a minor portion of the overlapped flaps, wherein said secured together areas consist of two parallel spaced apart bands extending across said ends from one side of the stack to the other, said bands each having a first width and spaced apart a distance approximately equal to said first width, a lower edge portion of an outer overlapping flap being unattached to an underlying flap and defining a free edge having substantial width that may be easily grasped with the fingers to detach the secured and sealed together flaps and facilitate opening of the wrapped stack of cut sheets of paper, and wherein the sealed areas have sufficient burst strength to avoid inadvertent opening of the wrap but at the same time are relatively easy to separate when it is desired to open the wrap to gain access to the cut sheets of paper.