| 摘要 |
PROBLEM TO BE SOLVED: To cause contact members to appropriately overlap with one another at upper ends of folding lines among side surface plates and folding joint plates while taking an advantage of providing corner cut portions among the side surface plates adjacent to one another, and to allow a paper container in which contents hardly leak outside the container to be obtained.SOLUTION: There is provided a paper container with a flange 1 that has a plurality of folding joint plate 121, 141 and 16 arranged among side surface plates 12 and 14 adjacent to one another and Z-folded corner cut portions 17 provided thereto, hermetically covers cutting-off starting ends 20 of edge piece 15 sides becoming one end portions of outer sides of the corner cut portions 17 by second contact members 124 possessed by joint edge pieces 122 continuously provided to the container innermost folding joint plates 121 and hermetically covers cutting-off starting ends 18 of edge piece 13 sides becoming the other end portions of the outer sides of the corner cut portions 17 by first contact members 144 possessed by joint edge pieces 142 continuously provided to the container outermost folding joint plates 141. |
