| 摘要 |
The envelope is made of a rectangular sheet (1) of paper folded along a transversal line (2) in order to create two layers (1a,1b). Two folding flaps (6a,6b) are positioned in a right angle at one of the corners (3a,3b). The adhesive area is designed in an L-shape (4), one of the segments (4a) positioned along the folding line (2) with a gap (8) between the flap (6a) and the adhesive area, the other segment (4b) parallel the outer edge (3c) at a particular distance (5). A small extension (7) can be used as a grip. |
