Silver halide color photosensitive material

A technology of photosensitive materials and color photography, which is applied in the direction of photosensitive materials, optics, and color reduction processing technology, and can solve problems such as insufficiency

Inactive Publication Date: 2005-11-09
KONICA MINOLTA OPTO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] However, although any of the above-mentioned methods can achieve a certain degree of high sensitivity, they are absolutely insufficient in terms of storage stability, latent image stability, and especially processing stability, under the current situation where high quality is required. , need to further improve the quality

Method used

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  • Silver halide color photosensitive material
  • Silver halide color photosensitive material
  • Silver halide color photosensitive material

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example

[0141] The synthetic method of exemplary compound 1-1

[0142] Add 4.5 g of 1-(4-carboxyphenyl)-tetrazole to 20 ml of methanol, and add 5 ml of concentrated ammonia to dissolve it completely. Then 2 ml of 35% hydrogen peroxide was added and stirred at room temperature for 12 hours. After adding 1 mol / L hydrochloric acid to make it acidic, the precipitated crystals were filtered and recrystallized from methanol to obtain 3.7 g of Illustrative Compound I-1 (yield 96%).

[0143] Furthermore, in the silver halide color photographic photosensitive material of the present invention, it is preferable that at least one inhibitor among the above inhibitors is a compound represented by the aforementioned general formula (1).

[0144] In the aforementioned general formula (1), X is N or CR', and R' is a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group. R 3 and R 4 hydrogen atom, alkyl, alkenyl, alkynyl, aryl or heterocyclic group,...

Embodiment 1

[0295]

[0296] [Preparation of Tabular Silver Halide Emulsion Em-1]

[0297] (Preparation of Tabular Seed Emulsion 1)

[0298] Plate-shaped seed emulsion 1 was prepared through the following procedure.

[0299] [nucleation process]

[0300] In the reaction vessel, 28.3 L of an aqueous solution containing 162.8 g of low-molecular-weight gelatin (average molecular weight: 15,000) and 23.6 g of potassium bromide was kept at 15°C while stirring at a high speed using a mixing and stirring device described in JP-A-62-160128 , while using 0.5 mol / L sulfuric acid, adjust the pH to 1.90. Then, the following S-01 solution and the following X-01 solution were added at a constant flow rate by the double nozzle method within 1 minute, and when nucleation proceeded, the following G-01 solution was added.

[0301] S-01 liquid: 205.7ml of 1.25 mol / L silver nitrate aqueous solution

[0302] X-01 liquid: 205.7ml of 1.25 mol / L potassium bromide aqueous solution

[0303] G-01 liquid: 2921...

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Abstract

A silver halide color photosensitive material high in sensitivity and excellent in shelf life stability, latent image stability, and processing stability. The material comprising a support and further comprising, over the support, at least one red-photosensitive layer, at least one green-photosensitive layer, at least one blue-photosensitive layer, and at least one non-photosensitive layer is characterized in that at least one of the photosensitive layers contains a monodispersed silver halide emulsion having an average silver iodide content of 2.0 to 4.0 mol%, an average aspect ratio of 8.0 or more, and a dislocation line, and in that at least one photosensitive layer containing the silver halide emulsion contains 0.60 mg / m<2> or more of inhibitor.

Description

technical field [0001] The present invention relates to a silver halide color photographic photosensitive material, in particular to a silver halide color photographic photosensitive material with high sensitivity and good storage stability, latent image stability and handling stability. Background technique [0002] On the one hand, silver halide color photographic photosensitive material can be said to be a product with highly mature technology, but on the other hand, the performance that people expect involves many aspects such as high sensitivity, high image quality, and small performance changes caused by changes in storage conditions. Furthermore, in the future, it is necessary to add rapid processing adaptability to shorten the development processing time, and the level of these requirements has been increasing in recent years. [0003] Especially in terms of high sensitivity, with the recent technological advancement of digital cameras, in order to maintain the super...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/06G03C1/035G03C1/34G03C7/30
CPCG03C1/34G03C1/346G03C2001/03558G03C2001/0357C22C9/06G03C7/3022G03C2001/0055G03C2001/0056
Inventor 高田宏
Owner KONICA MINOLTA OPTO
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