▎ 摘　　要

NOVELTY - The flattening unit has a roller unit that flattens wrinkles present in the skin. A pressurizing unit is arranged on the other surface of the graphene composite structure for pressurizing the graphene composite structure in a direction of the roller unit. An inner rotation unit extends and comprises a central hole through which the negative pressure generated in the negative pressure generating unit is transmitted and a branch passage formed extending to the outer surface of the center hole and communicating with the inner rotation unit. The rotation portion is located on the outer surface of the inner rotation unit and forming the graphene covering the rest of the area except for the contact area of the outer rotation unit. The rotation portion comprises an outer rotation unit having multiple suction holes communicating with the branch passage and supporting one surface of the composite structure. USE - Wrinkle flattening unit for flattening wrinkles present in graphene composite structure (claimed) used in industry. ADVANTAGE - The wrinkle flattening unit enables wrinkles, which occur during preparation of graphene composite structure, to be smoothed out, and enables graphene composite structure with excellent quality to be prepared. The wrinkle flattening unit can be easily applied to the continuous manufacturing process of the graphene composite structure manufactured through the roll-to-roll process through the roller unit and the pressurization unit, so that wrinkles generated in the graphene composite structure can be effectively flattened, while increasing the production yield of the graphene composite structure. DETAILED DESCRIPTION - The wrinkle flattening unit has roller unit, a negative pressure generating unit, and a pressure unit which are formed in a width direction of the graphene composite structure. The pressing unit comprises a squeegee or a support roller. The branch flow path is spaced apart from a radial flow path radially located around the center hole so that the center hole and the suction hole communicate with each other along the width direction of the inner rotation unit. A ring-shaped passage is concavely formed in a ring shape on an outer surface of the inner rotating portion so that the negative pressure is evenly transmitted in a circumferential direction of the inner rotation unit. The inner rotation unit and the outer rotation unit are individually manufactured and assembled to form an integral portion. The outer rotation unit includes a porous material having micropores to have multiple suction holes. A sealing element is set for preventing loss of negative pressure through some of the adsorption holes. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the apparatus for manufacturing a graphene composite structure. 10Deposition unit 20First stacking unit 30Etching unit 40Second stacking unit 50Peeling unit