| 摘要 |
PURPOSE:To improve antistatic power and to provided a tough film property to the title so as to prevent deterioration of a developing fixer by providing a coating layer contg. a specific compd. on the surface of a hydrophobic opposite from a photosensitive emulsion layer. CONSTITUTION:The coating layer contg. at least chitin or chitosan is provided on the surface of the hydrophobic base on the side opposite from the photosensitive emulsion layer. At least one kind of colloidal silica and colloidal alumina are incorporated into the coating layer an at least one kind of a monovalent metal salt and inorg. pigment having 0.1-7.0mu number average particle size are incorporated therein. The colloidal silica is a colloid soln. prepd. by dispersing silicic acid anhydride having 5-40mmu average particle size into water. The colloidal alumina is fluffy alumina having 10mmu average diameter and 100mmu length. The monovalent metal salt is water soluble inorg. and org. alkalimetal salts. |
