| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a paper container, in which the outside of an inner plastic container is covered and bound with an outer paper container, and which has water and hot water-resistant properties due to securing the sufficient strength of the container not only by substantially improving the strength of conventional paper containers, forming the outer container with a resin-impregnated paper, but also by substantially suppressing a reduction in the strength of the outer paper container, even if the paper container gets wet. SOLUTION: In this paper container, in which by folding, heating, pressing and molding (deep draw forming) the paperboard forming a blank on which a punching and a ruling work is carried out in advance, an edge surface of a paperboard forming the blank are positioned only around an opening portion of the container, a paperboard substrate forming the blank is obtained by saturating resin.</p> |
