| 摘要 |
1,180,654. Increasing the sensitivity of silver halide emulsions. EASTMAN KODAK CO. Sept. 20, 1967 [Sept. 22, 1966], No.42748/67. Heading G2C. The sensitivity of a photographic silver halide emulsion in a molten or set and undried state is increased by applying thereto a pressure of at least 15 p.s.i. Pressure may be applied for 1 to 24 hours in a bomb under pneumatic pressure at a temperature of 40 to 65‹C. whilst agitating the emulsion. The emulsion may be an internal latent image emulsion or a direct positive emulsion fogged with thiourea dioxide and potassium chloroaurate. |
