| 摘要 |
A disposable plastic back pack is formed from a thin sheet of plastics material. The sheet has a generally rectangular body portion that has a top edge, a bottom edge, and ends, and an elongated tail portion divided into two sections. The disposable back pack also includes a second sheet of thin plastic material that is generally rectangular in shape. The body portion is folded over onto itself at its ends forming a longitudinal flap extending from the top edge to the bottom edge, and the tail sections are folded over the folded body portion so that the distal ends of the tail sections are aligned with the top edge of the body portion. The second sheet of plastics material is then placed adjacent to and aligned with the unfolded side of the body portion of the first sheet of plastics material. The entire periphery of the back pack thus configured is then heat sealed so that the folded body portion forms a pouch, the folded tail sections form shoulder straps to support the pouch on a wearer's back, and the second sheet of plastics material forms an upwardly open pocket on the side of the pouch opposite the shoulder straps for displaying advertisements and other promotional indicia. The pouch also serves as a storage compartment so that a wearer can carry items while keeping both hands free to perform other tasks.
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