PAPER BARRIER PACKAGING MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a paper barrier packaging material having a water vapor barrier layer and a gas barrier layer formed by applying a water-based paint and having both excellent gas barrier properties and excellent water vapor barrier properties, and to provide a method for manufacturing the paper barrier packaging material.SOLUTION: In a paper barrier packaging material where a water vapor barrier layer containing a pigment and a binder and a gas barrier layer containing a water-soluble polymer are formed on a paper substrate in this order, a styrene-butadiene resin and a modified polyethylene resin are contained as the binder of the water vapor barrier layer.