| 摘要 |
<p>A flexible package for products sensitive to moisture, includes a front flexible sheet having moisture-barrier properties; and a back flexible sheet having moisture-barrier properties bonded along its peripheral edges to the peripheral edges of the front flexible sheet except for one edge to allow for the introduction of the product into the interior of the package and then the sealing of the package by bonding the unbonded edges. At least a section of the front flexible sheet having moisture-barrier properties is optically transparent such as to permit a moisture-indicator to be introduced with the product into the interior of the package before bonding the unbonded edges of the two sheets, and to be optically observed through the transparent section after the package has been sealed. Also described are various multi-layer constructions for the two flexible sheets, and methods of producing such packages to also include anti-static properties.</p> |
