| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a polypropylene resin film for valuables suitable for valuables including banknotes.SOLUTION: A film for valuables of this invention comprises: a single-layer film or multi-layer film containing polypropylene resin obtained by the action of a metallocene catalyst. The polypropylene resin should be preferably propyleneαolefin random copolymer. The single-layer film or the multi-layer film should have preferably 500 to 2,000 MPa of modulus of elongation, 0.1 to 10% of haze, 20 wt.% or less of soluble quantity at 40°C measured by the temperature rising elution fractionation (TREF) method using ortho-dichlorobenzene as solvent.</p> |
