| 摘要 |
<p>PURPOSE: A packaging film is provided to achieve excellent adhesiveness between film surfaces owing to the self-adhesiveness of the front side and reverse side of the resin films, thus preventing dust and rainwater from entering packages of assembly packaging of small products or spiral packaging of large products. CONSTITUTION: The packaging film includes two layers composed of a layer including a resin composition containing at least one kind of adhesives-rendering resin having a resin density of 0.950g/cm3, such as rosin resins, at a concentration of 0.002 to 12.0% by weight in a polyolefin resin having a resin density of more than 0.910 g/cm3, and another layer including a resin composition containing the adhesiveness-rendering resin at a concentration of 0.05 to 25.0% by weight and a plasticizing oil at a concentration of 0.01 to 8.0% by weight in a low density linear polyethylene resin having a resin density of 0.860 to 0.920 g/cm3.</p> |
