| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a film that protects a recorded matter, preferably a historical old recorded matter (old documents or the like) and a recorded matter preservation method, wherein: the purpose is that the deterioration due to ultraviolet or moisture, and the destruction due to organisms such as a small animal, an insect, and a bacterium are prevented; the film is light and a small volume; and further a recorded matter can be visually observed by an infrared absorption analysis or an optics microscope while being held on the protective film. <P>SOLUTION: The film for recorded matter preservation comprises a polyester film (A) that has at least 10/cm<SP POS="POST">2</SP>and less than 100/cm<SP POS="POST">2</SP>of a through hole having a diameter of at most 100μm, and has at most one/cm<SP POS="POST">2</SP>of a through hole having a diameter exceeding 100μm, and that has at least 10μm and at most 100μm of a thickness. In addition, a recorded matter preservation body is sandwiched between the film (A) and a polyester film (B) having a thickness of at least 100μm and at most 3 mm. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
