PAPER BARRIER PACKING MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a paper barrier packing material having a water vapor barrier layer and a gas barrier layer set by coating of a water-based paint, and having both excellent gas barrier property and water vapor barrier property.SOLUTION: A paper barrier packing material has a water vapor barrier layer and gas barrier layer containing a water-soluble polymer in this order on a paper substrate and has a paper thickness of 150 μm or more and a density of 0.60 to 0.95 g/cm.