| 摘要 |
PROBLEM TO BE SOLVED: To provide a rustproof packing material that has an effect that, when, for example, a metal component is packed by the rustproof packing material, a rustproofing state is maintained for a long term from an initial stage soon after the packing. SOLUTION: A rust proof packing material has a rust proof film layer. Two thermal adhesiveness polyolefin series resin layers with different resin density include either one of a rapidly-acting vaporizing rust inhibitor and a slow-acting vaporizing rust inhibitor, respectively, and the rustproof film layer is formed by both the layers. Here, a vapor pressure of the "rapid-acting" vaporizing rust inhibitor is defined to be≥0.2 Pa at a room temperature and a vapor pressure of the "slow-acting" vaporizing rust inhibitor is defined to be <0.2 Pa at the room temperature. COPYRIGHT: (C)2011,JPO&INPIT
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