| 摘要 |
The present invention relates to a complex cup structure improving solution, which includes a plastic thin film inner cup and a paper material outer cup. Among raw materials used in the complex cup, the ratio of a paper material to a plastic material is 7:3. Bowl parts of the inner cup and the outer cup are designed in a bending shape by being slightly wound outwards. The side circumference of the inner cup is slightly larger than that of the outer cup, and the inner sup has a flat top surface and a single strip of an extending piece on the side circumference of the bowl parts. After the inner cup and the outer cup overlap, the bowl part of the inner cup overlaps with the bowl part of the outer cup, in order to form the complex cup with high strength, excellent insulation effect, and a leakage preventing function. Therefore, the complex cup structure can provide convenience in sorting and collecting waste by easily separating the inner cup from the outer cup using the extending piece, can be advantageous in product marketing by applying various opening designs to the paper material outer cup, and can ensure package sealing and perfection of the product. |
