| 摘要 |
PURPOSE: A paper cup including the extrusion collar capable of becoming folded in the inner side of a paper cup is provided to highly dissolve contents including coffee or beverage powder in water and be easily used. CONSTITUTION: A paper cup comprises a body(10) and a bottom plate(20) to become a cylindrical shape. The body includes a junction part(13) which is glued to the top and bottom direction by folding the both end parts of the paper. The bottom plate is glued along the inner circumference of the lower part of the body to be sealed tightly. A end part of one side is placed in the inner side of the both end parts which are folded each other. Extrusion collars(30) are formed to be folded to the inner side by placing the junction part at the tip of the end part at a fixed interval. A inclined part(32), which gradually slopes downward while going from the junction part to the end part, is formed In the extrusion collars. A suppress contact unit, which is bent by being touched with the bottom plate, is formed in the bottom of the extrusion collar. The paper cup has a characteristic to be taken to the bottom plate when getting folded in the inner side. |
