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Silver-halide color photoelement

一种感光材料、卤化银的技术，应用在感光材料、感光材料的应用、乳化银乳剂等方向，达到高图像质量的效果

Inactive Publication Date: 2005-03-30
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] It has been found that the problems of the present invention can be solved by

Method used

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  • Silver-halide color photoelement
  • Silver-halide color photoelement
  • Silver-halide color photoelement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0528] Referring to the preparation method of the emulsions Em-A to Em-O described in Example 1 in JP-A-2001-281815, the silver halide emulsions Em-A to Em-O listed in Table 1 were prepared.

[0529] emulsion name

[0530] In the tabular grains of Table 1, dislocation lines were observed by a high-voltage electron microscope as described in JP-A-3-237450.

[0531] 1) Superposition of photosensitive layer (preparation sample 001)

[0532] A cellulose triacetate support was multilayer coated with the following composition to obtain a color negative film (Sample 001). (Composition of photosensitive layer)

[0533] The main raw materials used in the monolayer are classified as follows.

[0534] ExC: Cyan coupler UV: Ultraviolet absorber

[0535] ExM: magenta coupler HBS: high boiling point organic solvent

[0536] ExY: Yellow coupler H: Gelatin hardener

[0537] (In the following description, actual compounds have numbers appended to their symbols. The general formu...

Embodiment 2

[0846] The supports of samples 101, 102, 105, 110, and 112 were changed to a triacetyl cellulose sheet with a 7 μm thick bottom layer composed of a hydrophilic colloid layer, and samples 201, 202, 205, 210, and 212 were prepared. The sample was made into a Brownie format, used for the same photography as in Example 1, and developed with an automatic processor FP-232B manufactured by Fuji Photo Film Co., Ltd. Thereafter, the same evaluation as in Example 1 was performed. As shown in Example 1, the photosensitive material of the present invention produced favorable results.

[0847] The samples were observed after treatment and although slight wear was observed on samples 201 and 202, the other samples showed no wear.

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Abstract

A silver halide color photosensitive material of less than 320 ISO speed, comprising at least two red-sensitive emulsion layers, at least two green-sensitive emulsion layers, at least one blue-sensitive emulsion layer and at least one nonsensitive layer, wherein silver halide tabular grains of 0.15 mum or less grain thickness are contained in an amount of 50% or more in respective layers with the highest speed among the green- and red-sensitive emulsion layers; wherein the total dry film thickness of the material on the emulsion layer side thereof is 24 mum or less; and wherein the compound (A) is contained in at least one silver halide emulsion layer or the nonsensitive layer. Compound (A): heterocyclic compound having one or more heteroatoms, which heterocyclic compound is capable of substantially increasing the sensitivity of silver halide color photosensitive material by addition thereof as compared with that exhibited when the compound is not added.

Description

technical field [0001] The present invention relates to a silver halide color photosensitive material capable of achieving extremely high image quality with excellent graininess and light sharpness. Background technique [0002] In recent years, with the development of photosensitive materials related technologies for photography, photosensitive materials with high photographic speeds have been put on the market rapidly one after another. Therefore, the scope of photography is expanding to night scenes, dark interior spaces, and the like. [0003] However, it is difficult to obtain satisfactory image quality when the size of the photograph is large relative to a photosensitive material having a high photographic speed. For example, in the field of professional photography, such as commercial professional photography, it is very important to achieve excellent graininess in order to improve photo quality. Graininess is also extremely important considering the high proportion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03C7/20G03C1/035G03C1/10G03C1/74G03C7/00G03C7/30G03C7/38G03C7/392
CPCY10S430/156G03C7/3029G03C7/3825G03C7/3041G03C7/3022G03C7/3924G03C1/0051G03C2007/3025G03C2007/3027G03C2007/3034G03C1/46
Inventor 丰田雅义细川淳一郎日置孝德
Owner FUJIFILM CORP
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