JP2547527Y2 - Photosensitive material - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic light-sensitive material in which emulsion information including a lot number and a description of photographic characteristics used in the production process is recorded.

[0002]

2. Description of the Related Art A lot number of a photographic emulsion is recorded on a packaging material of the photographic material.
For example, in a 35 mm roll film for photography, emulsion information is recorded in a bar code on the surface of a cartridge.

[0003]

The photographic light-sensitive material is obtained by coating and drying a photographic light-sensitive emulsion on a base such as a film or paper, and since this emulsion is composed of gelatin, it is difficult to prepare a photographic light-sensitive material. Subtle differences occur between lots. The difference is, for example, the photosensitivity, the color tone, or the physical deformation amount (for example, expansion and contraction due to humidity). These differences may cause problems when performing various processes such as photographing, developing, and printing.

Therefore, conventionally, emulsion information has been recorded on a packaging material of a photographic light-sensitive material so that a user who needs the information can utilize the information. For example, as described above, in a 35 mm roll film, emulsion information is recorded as a barcode on the patrone, and this information can be read by the camera side and used at the time of photographing. You can use it if you try.

However, in the conventional method in which emulsion information is recorded not on the photographic material itself but on the packaging material, when the photographic material is separated from the packaging material,
No emulsion information is available. For example, in the currently popular DPE service, the work of removing the film from the patrone or magazine is performed prior to the development processing, and furthermore, the ordered films are connected indiscriminately and conveyed in series. However, emulsion information cannot be used. It cannot be used in the print creation stage as well.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to clarify an improved photographic light-sensitive material which can utilize emulsion information in each process of photographing and printing involving a photographic light-sensitive material.

[0007]

The photographic material according to the present invention is characterized in that the lot number of the photographic emulsion used in the manufacturing process is recorded on the photographic material itself.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention;

FIG. 1 shows an example in which the present invention is applied to a 35 mm roll film 1 for photographic use. The film 1 is housed in a patrone 2 in a light-shielded state with a small amount of a leader section 3 at the tip. The information record 4 is the leader unit 3,
Alternatively, it is arranged at the head of the image forming unit.

The recording of the emulsion information 4 is performed directly on the film 1 by a bar code, a punch hole, a notch, magnetism, or the like, or by using a sticking paper. In addition,
In parallel with this, it is not excluded that the recording 4 of the emulsion information by the bar code is arranged on the outer peripheral surface of the cartridge 2 as in the past.

In the embodiment shown in FIG. 1, the film returned from the DPE service is cut to a fixed length,
When reordering prints, some image frames may not include the record 4 of emulsion information. Therefore, in order to solve such a case, as shown in FIG. 2, a portion other than the image forming unit 5 of the film 1, for example,
Continuously record the emulsion information 4 during or along the perforation 6, or along the perforation 6, or
They should be arranged intermittently at regular intervals.

In a photographic material in which a transparent magnetic layer is formed on the side opposite to the emulsion side of the film 1, that is, on the side of the backup layer, it is possible to provide the emulsion information record 4 also in the image forming section 5 by magnetism. it can. Perforation 6
Emulsion information and other information can be recorded by a method in which a non-transparent magnetic layer is provided at a fixed width in a portion along the line.

The concept of the embodiment described with reference to FIG.
The present invention is also applied to a case where the photographic light-sensitive material is in the form of a cut sheet such as an X-ray film or a dental film.

In a mode in which both the leading end and the trailing end of the film 1 are inside the spool, as in a so-called one-ten film, the emulsion information record 4 is arranged in a portion that is exposed when not in use.

The emulsion information added to the photographic light-sensitive material itself is read by information reading means provided on the equipment side when the photographic light-sensitive material is loaded into the equipment, and each processing is controlled based on this information. Is done. For example, a number is assigned to an emulsion of a photographic light-sensitive material, and information on the photographic light-sensitive material prepared and manufactured can be associated with this emulsion number. Since the sensitivity characteristics and physical characteristics are slightly different for each emulsion, proper processing control can be performed by utilizing this information. For example, when shooting, correcting the control of the exposure based on the emulsion information,
In the development processing, control of the time of contact with the processing liquid, control of the processing temperature, control of the replenishment amount of the processing liquid, control of stirring of the processing agent, and the like are performed. In drying, the drying temperature and the amount of hot air are controlled, and in the baking process, the standard transmission density may change depending on the emulsion.It is necessary to correct this at the baking stage. Use it to control volume and color filters.

[0016]

According to the present invention, the emulsion information can be utilized in each process step from photographing to reprinting, and high-performance processing can be performed, thereby solving the problems described above.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment.

FIG. 2 is a plan view showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Photosensitive material 2 Patrone 3 Leader part 4 Recording of emulsion information 5 Image forming part 6 Perforation

Claims (1)

(57) [Scope of request for utility model registration] 1. A photographic light-sensitive material characterized in that a lot number of a photographic light-sensitive emulsion used in a manufacturing process is recorded on the photographic light-sensitive material itself.