PACKING INSIDE BAG FOR VISCOUS MATERIAL

摘要

The present invention provides a packing inside bag for a semi-solid viscous material which is constructed by folding one rectangular blank sheet, an inner surface of which has release properties, said inside bag comprising a rectangular bottom surface formed so as to fit to an outside box, and a front wall, a rear wall and pairs of side walls which are uprightly raised along the four side edges of said bottom surface, said inside box being constructed by folding said blank sheet so that first lugs extending uprightly along the centers of said side walls may be put on said opposite side walls, and so that second lugs may be formed which are composed of irregular quadrilaterals extending outward via folds in parallel with said bottom surface from the opposite side edges thereof, said irregular quadrilaterals being formed by putting triangle portions on extensions of said first lugs.