PAPER BOX FOR IMPROVING HARDNESS

摘要

PURPOSE: A paper box is provided to prevent modification of the box caused by external pressure and storage of products and improve strength. CONSTITUTION: A paper box(1) comprises a bottom(100), sides(200) and cover(300) in one body. The bottom contains: bottom surface(110) comprising two transverse sides and two longitudinal sides facing each other and a first and second reinforcement parts(120,130) covering the bottom surface. The side comprises: a first side(210) and second side(220) which is extended from two transverse sides of the bottom surface and is bent to perpendicularly cross with the bottom surface; external sides which are extended from two longitudinal sides of first side and are bent to cover the two longitudinal sides; and a third side(230) and forth side(240) which are extended from a transverse side of external side and are bent based on the transverse side.