| 摘要 |
<p>A packaging film for photosensitive materials for photographic purpose which is a laminated film at least containing a metallized film layer and two polyethylene polymer layers which are located both sides of the metallized film layer, at least one of the above polyethylene polymer layers contains more than 50 wt% of linear low density polyethylene manufactured by low pressure method, one side or both of the above polyethylene polymer layers contains 0.3 to 30 wt% of a light-shielding material, and strength of one side or both of the above polyethylene polymer layers is stronger than adhesive force between the above metallized film and difference in the thickness of the polyethylene polymer layers is smaller than 50%. This film is superior various physical strength, moisture proofing, gas barrier, light-shielding and antistatic character, and it is superior as a packaging film for a photosensitive material for photographic purpose.</p> |
