摘要 |
<p>A base film for a photographic film, wherein (A) the base film is formed of a polyethylene-2,6-naphthalenedicarboxylate copolymer formed from 2,6-naphthalenedicarboxylic acid as a main acid component and ethylene glycol as a main glycol component; (B) a solution of 10 mg/ml of said copolymer in a hexafluoroisopropanol/chloroform mixed solvent having a hexafluoroisopropanol/chloroform weight ratio of 2/3 shows a light transmittance, T400, of at least 97 %/cm at a wavelength of 400 nm; (C) the film has a yellow index, YID, of 5 or less; and (D) the film has a haze value of 2.0 % or less.</p> |
申请人 |
TEIJIN LTD., OSAKA, JP |
发明人 |
KIMURA, MANABU, MATSUYAMA-SHI, EHIME-KEN, 791, JP;KURIHARA, HIDESHI, MATSUYAMA-SHI, EHIME-KEN 790, JP;ICHIHASHI, TETSUO, MATSUYAMA-SHI, EHIME-KEN 791, JP;KITAZAWA, SATOSHI, SAGAMIHARA-SHI, KANAGAWA-KEN, 229, JP |