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Method of increasing speed of silver halide color photosensitive material

A silver halide, color light technology, applied in optics, multi-color photography process, photography process and other directions, can solve the problems of side effects, insufficient effect, etc.

Inactive Publication Date: 2007-10-24
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, although the photosensitization rate can be increased by the method disclosed above, the effect is not sufficient, and the addition of such a compound also causes some side effects

Method used

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  • Method of increasing speed of silver halide color photosensitive material
  • Method of increasing speed of silver halide color photosensitive material
  • Method of increasing speed of silver halide color photosensitive material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0262] The carrier used in this example was prepared as follows.

[0263] 1) First layer and subbase:

[0264] The polyethylene naphthalate carrier with a thickness of 90 μm on both surfaces was treated by the glow discharge method, and the treatment conditions were: the ambient pressure was 2.66×10Pa, H 2 The O partial pressure is 75% of the ambient pressure, the discharge frequency is 30kHz, the output is 2500W, and the processing intensity is 0.5kV·A·min / m 2 . The carrier uses a coating solution with the following composition, and the coating amount is 5mL / m 2 , applied according to the rod coating method described in JP-B-58-4589 to produce the first layer.

[0265] Conductive fine particle dispersion (SnO 2 / Sb 2 o 5 Granules 10% Concentration

[0266] Aqueous dispersion, primary particles with an average particle size of 0.005 μm

[0267] Secondary agglomerates, the particle size of which is 0.05 μm) 50 parts by weight

[0268] Gelatin 0.5 parts by weight

[02...

Embodiment 2

[0712] Sample 201 was prepared in the same manner as Sample 106, but the compound (56) described in Example 1 for the 11th layer of Sample 106 was moved into the 12th layer.

[0713] As with sample 106, sample 201 was evaluated using the method described in Example 1. The increase value of the sensitivity rate of the green sensitive layer is 0.03, which is reduced compared with 0.06 of the sample 106. However, before the preparation of sample 201, after the coating solutions of the 11th and 12th layers were placed at 40°C for 12 hours, the phenomenon of increased fog did not appear in sample 201, thus making sample 201 overcome the problem in the 11th layer of sample 106. The disadvantage of an increase in undesired fogging occurs.

[0714] From the viewpoint of increasing the effect, it is preferable to directly add the compound of the present invention to the photosensitive layer. However, from the viewpoint of preventing the above-mentioned side effects, it has been found...

Embodiment 3

[0716] The carrier used in Example 3 was prepared by the same method as in Example 1.

[0717] Apply photosensitive layer by coating

[0718] Next, on the opposite side of the obtained back layer support, coating was performed with a plurality of layers each having the following composition, whereby a color negative film sample 301 was obtained.

[0719] (Composition of photosensitive layer)

[0720] In addition to the description of each component, the given value expresses the coating amount in g / m2. For silver halide, coating weights are calculated in terms of silver.

[0721] The use of numbers is the same as in Example 1 for each specific compound.

[0722] (Sample 301)

[0723] The first layer (the first anti-halation layer)

[0724] Vinyl Silver Silver 0.104

[0725] Silver iodobromide emulsion grains with an average grain diameter of 0.07 μm Silver 0.011

[0726] Gelatin 0.910

[0727] ExM-1 0.060

[0728] ExC-1 0.002

[0729] ExC-3 0.002

[0730] Cpd-2 0.00...

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Abstract

A method of increasing speed of a silver halide color photosensitive material. The photosensitive material has, on a support, a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a red-sensitive silver halide emulsion layer, and a nonsensitive layer. The method comprises adding, to the emulsion layer or the nonsensitive layer, a compound represented by formula (M) or (C): in the formula (M), R1 represents H or a substituent, Z represents a group of non-metallic atoms required to form a 5-membered azole ring containing 2 to 4 nitrogen atoms, and X represents H or a substituent, and in the formula (C), Za represents -NH- or -CH(R3)-, Zb and Zc represent -C(R4)= or -N=, R1, R2 and R3 represent an electron attractive group having a Hammett constant sigmap of 0.2 to 1.0, R4 represents H or substituent, and X represents H or a substituent.

Description

[0001] This application is a divisional application of the application whose application date is November 22, 2002, and whose application number is 02152411.4, and the title of the invention is "Method for Improving Light Sensitivity of Silver Halide Color Photosensitive Material". [0002] Cross-references to related applications [0003] The present invention is based on, and claims priority from, the following prior patent applications: Japanese Patent Application No. 2001-358036, filed November 22, 2001; and No. 2002-138621, May 14, 2002 filed on , the entire contents of these two patents are hereby incorporated by reference. technical field [0004] This invention relates to a method for rapidly obtaining images using a silver halide color photosensitive material. Background technique [0005] In the field of silver halide color photosensitive materials, increasing the light speed without compromising the grain size has been a difficult problem for many years. In gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03C7/38
Inventor 细川淳一郎嶋田泰宏内田修石绵靖宏川岸俊雄
Owner FUJIFILM CORP
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