Silver halide photographic photosensitive material and colour image formation method
A photosensitive material and silver halide technology, applied in photosensitive materials, subtractive silver halide emulsion technology, optics, etc., can solve problems such as insufficient emulsion practicality
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Synthetic example 1
[0204] (Modulation of Emulsion A: {100} high silver chloride tabular grain emulsion formed with a flat plate using PVA compound, [AgCl 100 ])
[0205] Add H to the reaction vessel 2 O 1200ml, gelatin (deionized alkali-treated bone gelatin with a methionine content of about 40 micromoles / g) 25g, sodium chloride 0.4g, nitric acid 1N solution 4.5ml (pH value 4.5), at a constant temperature of 40°C. Next, Ag-1 solution (silver nitrate 0.2 g / cc) and x-1 solution (sodium chloride 0.069 g / cc) were added and mixed at 48 cc / min while stirring vigorously for 4 minutes. After 15 seconds, add polyvinyl alcohol aqueous solution [(containing PVA compound-29) 6.7g, H 2 O1 liter] 150ml.
[0206] Further, 12.3 ml of 1N solution of nitric acid was added to adjust the pH to 3.5. Heat up to 75°C within 15 minutes, add 23ml of sodium hydroxide 1N solution to make the pH value 6.5, add 4.0ml of 1-(5-methylureidophenyl)-5-mercaptotetrazole (0.05%), N,N -(-Dimethylimidazolyl-2-sulfur (1% aqueous...
Synthetic example 2
[0219] (Modulation of Emulsion B: {100} high silver chloride tabular grain emulsion formed with a flat plate using PVA compound, [AgCl 99.6 I 0.4 ])
[0220] In above-mentioned synthesis example 1, be the 0.4 mol% of total silver amount with the addition of iodine, in 1 liter, add and contain sodium chloride 33g, the aqueous solution (X-4) of potassium iodide 1.95g replaces (X-3), and Emulsion B was prepared as described above for Emulsion A. A part of the emulsion was taken, and an electron micrograph (TEM picture) of the particle replica sample was observed. Therefore, the projected area of all AgX particles is 98% of the flat particles on the main plane {100}, the average particle diameter is 0.79 μm, the average particle thickness is 0.11 μm, the average aspect ratio is 7.2, and the average adjacent side ratio is 1.2.
Synthetic example 3
[0222] (Modulation of Emulsion B: {100} high silver chloride tabular grain emulsion formed with a flat plate without using PVA compound, [AgCl 100 ])
[0223] Add [H 2 O 1200cc, gelatin (deionized alkali-treated bone gelatin containing about 40 micromol / g methionine content) 25g, NaCl 1g, HNO 3 1N liquid 4.5cc, pH value 4.5], constant temperature at 40 ℃. While stirring, add Ag-1 solution (AgNO 3 0.2g / cc) and X-1 solution (NaCl (0.069g / cc). After 3 minutes, add X-5 solution (KBr 0.012g / cc and NaCl 0.0014g / cc) at 62cc / min within 20 seconds Mixed solution). In addition, within 45 seconds after 3 minutes, Ag-1 solution (AgNO 3 0.2g / cc) and X-1 liquid (NaCl0.069g / cc). And as a ripening process, an aqueous gelatin solution [H 2 O 120cc, gelatin 10g, NaOH 1N solution 7cc, NaCl 1.7g]. After 4 minutes, the temperature was raised to 75°C within 12 minutes, and after curing within 25 minutes, the flow rate was increased linearly from 7cc / min to 8.8cc / min within 32 minutes, while...
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