| 摘要 |
<p>The invention relates to pressure sensitive adhesive envelopes (4) that are stacked and adhered together to form a stack of envelopes. Each of the envelope flaps (6) is treated with a release coating (12) on the back side (14), and with a pressure sensitive adhesive (8) on the front side. In this fashion, the adhesive of each envelope is covered and protected by the release coating of an adjacent envelope in the stack without the need for a separate release liner or tape so that each envelope can be easily separated from the stack and from each other. The pressure sensitive adhesive obviates the need for moistening, and each envelope can be sealed simply by closing the flap and applying pressure.</p> |
