| 摘要 |
<p>The present invention relates to a packaging film capable of packing peanut caramel, jelly, candy and the likes, including: a step for heating a cylinder of an apparatus for forming a film and a mold dies; a step for preparing a cyclic olefin copolymer 500 (COC500) resin, a COC5013 resin, a COC7010 nonmaterial resin, an LLDPE resin, and an M/B material; a step for adding 62 wt% of COC7010, 28 wt% of COC500, 9 wt% of LLDPE resin, and 1 wt% of M/B into a stirrer to combine the resin materials; a step for performing a decentralized supplying of the combined resins toward an air extrusion molder; a step for melting and blowing air into the combined resins to form the combined resins into a tube-shaped double-layered film to extrude the same upward; a step for separating the double-layered air-extruded film into two single-layered films; a step for severing the single-layered films into a predetermined standardized form; and a step for laminating the severed films into multiple layers. The structure of the film according to the present invention can be prevented from being loosened of a sealed twist shape by forming a three-layered structure and twisting both ends of the packaging. When opening the packaging, the film structure can be freely severed transversely and vertically, to make the opening easy.</p> |
