| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a paper disk which can easily be separated into plastics and paper in disposal so as to facilitate a separation collection, has a sandwiched structure, wherein paper is sandwiched by resin films, and is good for the environment. <P>SOLUTION: The paper disk is composed of a resin film layer 3, a resin layer 2, a paper base material layer 1, a resin layer 2, a resin film layer 3 and a recording layer 4. Paper and resin are easily separated by using the resin layer having easy peelability. The resin layer is composed of an interlayer peelable layer using a resin of a single resin component having difference between adhesive force values to the paper base material layer and the resin film layer or a cohesive failure layer satisfactorily adhering respectively to the paper base material layer and the resin film layer and using a resin mainly consisting of a polyethylene, a polypropylene or the like containing a plurality of resin components having different adhesive force values to the paper base material layer. <P>COPYRIGHT: (C)2007,JPO&INPIT |
