JPH0564781B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention relates to a silver halide photographic material.
In particular, it relates to a silver halide photographic material containing a fluorine-containing surfactant. [Prior art] Conventionally, in silver halide photographic materials,
A technique using a fluorine-containing surfactant to prevent static electricity is known. For example, Japanese Patent Application Laid-open Nos. 54-14224, 50-34233,
49-46733, 51-32322, 56-19042, 56
-41093, 55-7762, 50-16525, 57-
29691, 57-11341, 54-111330, 56-
34856, Special Publication No. 48-43130, No. 52-25087, No. 47-
9303, 56-44411, U.S. Patent 3775126, 56-44411,
There are 4292402 etc. However, these conventional techniques do not necessarily provide good functionality under various storage and usage conditions, and often result in performance fluctuations depending on the storage conditions.
For example, when stored under high temperature or high humidity conditions, performance often changes. [Object of the Invention] An object of the present invention is to provide a silver halide photographic material that can solve the problems of the prior art described above and exhibit good antistatic performance under various storage and usage conditions. It is in. [Structure and operation of the invention] The above object is to provide a silver halide photographic light-sensitive material comprising a photographic constituent layer having at least one layer containing a silver halide emulsion on a support. a fluorine-containing surfactant in at least one of the photographic constituent layers on the side containing the fluorine-containing surfactant;
( This can be achieved by: a) having an inorganic alkali metal salt content of 0.5 to 5 wt%; and (b) a polymer latex or inorganic colloid fine particles having a content of 3 wt% or more. That is, the silver halide photographic light-sensitive material of the present invention having the above-mentioned structure exhibits antistatic performance under various conditions, such as stabilizing the antistatic effect during high-temperature storage and improving antistatic performance during low-humidity handling. Can be maintained well and stably. Specifically, high temperatures (e.g. 30
~35℃. (This corresponds to the high temperature of midsummer in Japan) and high humidity (for example, 80% RH or higher), the deterioration of the antistatic effect is smaller than in the conventional technology, indicating a good effect. Further, good antistatic effect can be maintained even under low humidity, for example, 30% RH. In a preferred embodiment of the present invention, a polyalkylene oxide compound having a molecular weight of 300 or more is used in an amount of 1 to 10 wt % or more based on the total binder in the silver halide photographic light-sensitive material of the present invention. This provides even better antistatic effect. Further, the silver halide photographic material of the present invention can easily obtain good photographic performance and antistatic effect even when various layers are coated at high speed during production or when the coated layers are rapidly dried. For example, good results are likely to be obtained even when high-speed coating is performed at a coating speed of 100 m/min or more and when rapid drying is performed for 4 minutes or less.
Generally, when rapid drying is carried out, it may be difficult to stably obtain an antistatic effect using a polyalkylene oxide compound, but the present invention can also solve this problem. Next, the configuration of the present invention will be described in more detail. In the present invention, any of various fluorine-containing surfactants can be used as the fluorine-containing surfactant contained in the silver halide photographic light-sensitive material. Representative examples of fluorine-containing surfactants suitable for use in the practice of the present invention include the following.

【table】
｜

OH

【table】

【table】

〔Example〕

Examples of the present invention will be described below. It should be noted that, as a matter of course, the present invention is not limited to the following examples. Example 1 2 mol% iodine and 0.2 mol% chlorine with an average particle size of 0.3μ
A silver iodobromide layer with a ratio of 40 mol% iodine and 60 mol% bromine was formed on the inner core of monodisperse silver chloroiobromide containing iodine and on the outside thereof, and the silver iodobromide layer was grown to a grain size of 0.5μ. A silver iodobromide layer was grown to a thickness of 0.85 μm at a ratio of 1 mol % bromine and 99 mol % to obtain slightly rounded tetradecahedral silver halide grains. These particles contain chloroaurate, rhodanammonium,
Sodium thiosulfate and thiourea compounds were added and chemically ripened. Tomelytylolpropane 11 per 70g of this particle
An emulsion preparation solution was prepared by adding g, a stabilizer, a thickener, and other compounds shown in Table 1. This emulsion preparation solution and the protective layer solution described below were coated with polyethylene terephthalate at a coating speed of 150 m/min so that the emulsion solution had a silver content of 4.8 g/m ² and the protective layer solution had a gelatin content of 1.0 g/m ² . They were simultaneously coated onto a support and dried for 2 minutes and 30 seconds to obtain samples Nos. 1 to 26. [Protective layer liquid] (a) ●Gelatin 100g ●C ₁₂ H ₂₅ −O−(CH ₂ −CH ₂ O) ₁₀ −H 2.5g ● 2.0g ●Polyvinylpyrrolidone (average molecular weight 15000)
6g ●Polymethyl acrylate particles with average particle size of 2.5μ
Add 3g, cyanuric chloride hardener and water.
Finish it to 1.2. (b) The following compounds are added to the same liquid as in (a). 0.5g/1.2 protective layer solution (c) A solution similar to (a) with the following compounds added. Ludtux AM (manufactured by Dubon Co., Ltd.) is used as colloidal silica and the total binder is
Equivalent to 5wt%. (d) Same amount of the compounds added in (b) and (c) added to the same solution as in (a). (e) Same amount of the compounds added in (e) as in (a). 0.4g (F) The same amount of the compound added in (C) and (E) was added to the same solution as in (A). The humidity was conditioned for 24 hours at ℃ 80% RH, and the humidity was conditioned for 12 hours at 25℃ 20% RH under the same conditions, and rubbed between a neoprene rubber roll and a nylon roll with different charge series. After that, the automatic processor GX-300 (manufactured by Konishiroku Photo Industry Co., Ltd.)
After processing using XD-90 (manufactured by the same company) developer,
The degree of static mark occurrence was determined. The results are shown in Table 1. The evaluation was performed as follows. A: No occurrence B: Occurrence of less than 3% by area C: Occurrence of 3% or more but less than 10% D: Occurrence of 10% or more by area

[Protective layer liquid]

(g) ●Gelatin 100g ● 0.8g ● 0.5g ●Add 2g of silicon dioxide particles with an average particle size of 1.5μ, a vinyl sulfon hardener, and water to make 1.2
Finish it. (H) The following compound was added as a solid composition to the same liquid as in (G) in an amount equivalent to 4wt% based on the total binder. ●Alumina sol AS-100 (manufactured by Nissan Chemical Co., Ltd., particle size 50-100 mμ x 10 mμ) (1) As a nonionic polyalkylene oxide compound, the following compound was added to the solution in (1) at 0.6 wt% based on the total binder. These samples were subjected to the same tests and evaluations as in Example 1, and the results are shown in Table 2.

【table】

〔Effect of the invention〕

As described above, the silver halide photographic material of the present invention has the effect of exhibiting good antistatic performance under various storage and usage conditions.

Claims (1)

[Scope of Claims] 1. In a silver halide photographic light-sensitive material comprising a photographic constituent layer having at least one layer containing a silver halide emulsion on a support, the side containing the silver halide emulsion layer At least one of the photographic constituent layers contains a fluorine-containing surfactant, an inorganic alkali metal salt, a polymer latex with an average particle size of 0.8 μm or less, or an inorganic colloid with an average particle size of 0.8 μm or less. (a) The inorganic alkali metal salt is 0.5 to 5 wt%, and (b) The fine particles of polymer latex or inorganic colloid are 3 wt% or more based on the total binder of the photographic constituent layer. A silver halide photographic material characterized by: