| 摘要 |
<p>There is provided a laminated film for optical use comprising a polyester film which has a lubricity layer containing globular particles in at least one side thereof, wherein the laminated film has a thickness irregularity of 0.5 to 7.0 %, and wherein the polyester film contains inert particles derived from catalysts and the amount of the inert particles determined by a dark-field microscopy satisfies the following conditions: the number of inert particles having a particle size of from 1 to 10 mu m is 200 to 20,000/mm<2>; and the number of inert particles having a particle size of greater than 10 mu m is 10/mm<2>. <??>The laminated film for optical use which is improved in uniformity, transparency, lubricity, color tone and scratch resistance, which deposits only a reduced amount of low molecular materials, and which is excellent in the adhesion to a layer adopted for various optical purposes.</p> |
