| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a multilayered laminated stretched film excellent in light selective reflectivity, easily adjusted in the reflectivity and excellent in taking-up properties and film forming properties. SOLUTION: A multilayered laminated stretched film comprises two kinds of layers different in refractive index and having a thickness of 0.05-0.3μm and one layer is a layer (A-layer) comprising polyethylene-2,6-naphthalate containing 0.001-5 weight % of inert particles with a mean particle size of 0.01-2μm and the other layer is a layer (B-layer) comprising a mixture of polyethylene-2,6-naphthalate and polyethylene terephthalate in a weight ratio of (5:95) to (95:5)and the A-layers and the B-layers are alternately laminated so that the A-layers become both end layers and the total number of both layers is at least 11.</p> |
