METHOD FOR PRODUCING LIGHTPROOF PAPER PACKAGING MATERIAL, LIGHTPROOF PAPER PACKAGING MATERIAL, SEMI-PAPER PACKAGING MATERIAL AND LIGHTPROOF PAPER PACKAGING CONTAINER

摘要

A method of manufacturing a light barrier paper packaging material and the light barrier paper package container with low cost, no need of an ink removing apparatus at reproduction step and easily recycle are provided. A light barrier paper packaging material which comprises the paper substrate and the laminate layers on the paper substrate comprises: the paper substrate having a clay coat layer applied to the paper substrate; a light barrier layer printed with black Ink on the day coat layer; cover-up layers printed with white color ink to the light barrier layer a plurality of times; an outside laminate layer of thermoplastic resin formed on the cover-up layer, and design printed to the outside laminate layer.