Importance

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Abstract

A security bag has tamper indicating features that may be incorporated directly on the bag during manufacture, without requiring conventional tamper-indicating tapes. Release material is selectively applied to the bag in the form of a pattern or void message, prior to treatment of the bag to improve ink-retaining characteristics. After treatment, an ink layer is applied over the release material. An adhesive layer is applied to the bag in an area that will seal an opening of the bag and contact the ink layer at least when the bag is sealed. When the bag is reopened after initial sealing, portions of the ink layer applied over the release material will be retained with the adhesive, while the remainder of the ink layer will be retained on the treated surface of the bag.

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First Claim