| 摘要 |
Various embodiments of a plastic blister system are shown and described. The blister system is comprised of a blister to which a lid or backing of the same material may be tightly fitted and sealed by virtue of one or more cooperating "steps" near the outer perimeters of the blister and or lid, and by virtue of the outer perimeters of the blister and lid being continuously sealed to the cardboard or other planar sheet of backing. When the blister pack is thus sealed and attached to the cardboard, any odors or vapors which may possibly emit from the product, which is encased within the sealed blister, are also totally sealed in and cannot escape. Also, the sealed blister prevents outside moisture and gasses from contacting the product until the blister is opened. The degree of tightness of fit of the seal may be varied by the design and number of steps by which the blister and lid are formed together, but in any case, the degree of tightness of fit is not affected by the shape of the blister, which can be shaped to accommodate any size or shape of product.
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