JPH0481178B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a laboratory processing method carried out in a laboratory in the photographic industry.

Prior Art A color negative film requested by a customer is printed on a long roll of color photographic paper in a laboratory, and the printed color photographic paper is developed and then cut and sorted. The sorted color photographic paper is returned to the customer together with the color negative film.

FIG. 1 shows a standard laboratory processing process in a laboratory. If the requested color negative film is undeveloped, the film will be developed. The developer film connected in a roll is used for the next printing process.

On a long roll of color photographic paper, an image on a negative film is printed by a printer, and then the photographic paper is developed by a developing machine (processor). After the development process, the roll of color photographic paper is checked by an inspector, and a mark is placed on the color printed portions that are deemed unsuitable for shipment to the customer. The negative film corresponding to the marked color print is reprinted under the corrected printing conditions. The roll of color photographic paper that has been checked by the inspector is cut into individual color prints by a cutter, and then by the next sorter, the negative film and color print corresponding to the customer are combined, placed in a bag, and charged. It will be shipped with calculations etc.

Although the laboratory processing methods described above are being improved in the direction of labor saving and rationalization, they still require a large amount of manpower and skill. In the case of additional print orders called reprints, rationalization is more difficult than simultaneous prints, and more manpower is required.

From the standpoint of streamlining the laboratory, it is desirable that print information other than images be stored in each color print. Conventionally, print information has been inserted into the screen frame portion or the back side of a color print by burning or printing. Generally speaking, printers are based on the integral neutral method and print automatically by automatically controlling the exposure time based on the image density of the negative film, but as is well known, in special scenes such as snowy scenes or indoors under a tungsten light source, the density may vary. Measuring alone does not produce good prints with automatic printers. Generally, printing is performed using the automatic printing conditions as a standard and with corrections added thereto. This correction condition has been recorded on color prints. When reprinting a color print that was previously checked as defective by the inspector, it is extremely easy to correct it if the previous printing conditions are known. Also, when receiving an order for reprinting, if the previous color print is shown, the correction conditions can be read from there, and if the print is performed under the same conditions, a reprint with the same image quality can be obtained. If other print information is included in the color print, such as information about which frame of which film the negative was printed on, it will be placed in a bag together with the corresponding negative film in the previous sorter. It is extremely convenient when doing. Also, information such as the year, month, and day of the process and the model number of the printer on which the printing was performed are also effective. However, there is a limit to the amount of printed information that can be recorded depending on the conventional information recording method of printing dots on a narrow screen frame or typing on the back of photographic paper.

OBJECTS OF THE INVENTION The present invention improves conventional laboratory processing methods by making it possible to relatively easily record and read a required amount of signals in addition to images on color photographic paper.
It is another object of the present invention to provide a laboratory processing method that allows for more rational and good processing.

Structure of the Invention The present invention involves a laboratory process in which a color negative film is printed onto a roll of long color photographic paper, the printed color photographic paper is developed, and then cut and sorted into specified dimensions.
A color emulsion is coated on the surface of the color photographic paper support, and a color photographic paper coated with a magnetic recording emulsion for recording and reading signals is used on the back side, and information used in laboratory processing is input and output to the magnetic recording emulsion. The present invention provides a laboratory processing method characterized in that it can be used.

Embodiment Figure 2a shows an embodiment of the color photographic paper used in the present invention, in which a color emulsion is coated on the surface of a polyethylene resin-coated paper support, and a magnetic recording emulsion is coated in stripes on the back surface. Color photographic paper 2 coated with 21
It is 0. In the illustrated example, a magnetic recording emulsion 21 is coated in a stripe pattern parallel to the winding direction of a long color photographic paper and off-center in the width direction. The reason why the magnetic recording medium was removed from the center position in the width direction was because the cutter was used to cut the length of color photographic paper into one piece.
This is to clarify the direction of the leading edge of the magnetic recording material on the back side when cutting into color prints. In this embodiment, only one magnetic recording body is used, but depending on the amount of information to be recorded, it is possible to provide a plurality of magnetic recording bodies or to coat the entire back surface. However, this magnetic recording emulsion has the risk of curling the support depending on the amount of solvent and drying conditions. In particular, as the width of the magnetic recording medium increases, the degree of curling increases. Also, when making a long roll, there will be a difference in paper thickness depending on the magnetic recording material, and if you make a thick roll, the side coated with the magnetic recording material will be higher, causing problems, so the balance will be left and right with respect to the center position in the winding direction. Magnetic recording emulsions 22a and 22b are coated in two stripes so that they can be removed, as shown in FIG. 2b. Here, one magnetic recording medium 2
2a is used for recording and reading signals, and the other magnetic recording medium 22b is used only for reading, which will be explained later, and contains clock information serving as a length reference.

With the color photographic paper described above, by adding an information input/output mechanism to the processing system in the laboratory, it is possible to record and read information on the coated magnetic recording medium as shown in Figure 3. can.

(1) On the back side of the color image printed on a long length of color photographic paper by the printer, in a position corresponding to the color image, (a) Lot number of the photographic paper, printer number, (b) Customer/film information such as film type, film roll number, film frame number, etc.; (c) Printing conditions such as slope control, exposure correction, or BGRD information. Record information, etc.

(2) When the long paper is developed by a processor, the conditions of the processing liquid are controlled by the lot number of the color photographic paper, and after processing, the processing conditions are recorded as information on the magnetic recording medium. be done. It is also possible to record the printing conditions in the processor, or to record the printing conditions etc. in advance in the printer section.

(3) A check is performed by the inspector to determine which prints are defective and need to be reprinted, and which are unnecessary prints to be discarded. The inspector reads information from the magnetic recording medium of the defective print, compares the read information with the defective print, determines the amount of correction under the printing conditions, and determines the amount of correction for the corresponding negative film based on the read film number and film frame number. Reprint using a printer. The printer on which the reprint is performed may be the same or different from the printer described above. Furthermore, for defective or unnecessary prints, it is possible to record on the corresponding magnetic recording medium that the prints are defective or unnecessary.

(4) Long color photographic paper by cutter is C1,
It is cut at C2 (Fig. 2), resulting in many color prints. In this case, the above-mentioned defective prints and unnecessary prints are placed on the magnetic recording medium.
It is possible to eliminate based on unnecessary records. Conventional cutters have optically detected the color screen frame and cut for each frame, but if the printer records the cutting mark on a magnetic recording medium when printing, the cutter can use magnetic recording. Cutting can be done using the cutting mark on the top.

(5) The sorter is connected to the cutter and reads the film number and film frame number on the magnetic recording medium, eliminates defective and unnecessary prints, and groups them for the same customer. It is ejected in synchronization with the negative film.

(6) In the bag case, the number of prints, print price, etc. are printed on the bag, and the negative films and color prints that were removed at the same time are stored in this bag. If there is a defective print, a warning to that effect is given when the bag is placed, and a request is made to add or insert a reprint print.

(7) The cutting, sorting, and bagging operations are controlled by a separate computer, and the magnetic recording information contained in each color print is used to ensure accurate and efficient processing without requiring much human effort. It is processed.

The laboratory processing method of the present invention for simultaneous printing of 135 films has been described above. In addition, in the case of reprinting, by transferring the recording of the color print to be reprinted on the magnetic recording medium as it is and transferring it to the laboratory together with the negative film, a reprint with exactly the same image quality as the previous color print can be obtained. be able to.

Furthermore, in the above embodiment, information was written on the magnetic recording medium on the color photographic paper after the printer in the laboratory processing process, but as shown in FIG. Magnetic recording medium 2
By writing in 2b, the printer can feed paper using this clock signal.

Note that the present invention is not limited to laboratory processing of 135 film. A laboratory processing method that is systemically connected to a disk film is also possible, and the negative information and user information recorded on the negative are transferred to a magnetic recording medium for color printing, thereby performing the same processing as in the above embodiment.

Effects of the Invention As explained in the above embodiments, the present invention allows laboratory processing that conventionally required a lot of manpower and skill to be performed efficiently, without errors, and with excellent processing. Ta. The present invention is characterized in that signals on a magnetic recording emulsion coated on color photographic paper are used in a laboratory processing process, and although there are other methods of use in laboratory processing other than the above, none of these methods are applicable. Included in the present invention.

[Brief explanation of the drawing]

Figure 1 shows a standard development process in a laboratory, Figures 2a and b show an example of color photographic paper used in the present invention, and Figure 3 shows an example of the color processing method of the present invention. . 20...Color photographic paper, 21, 22a, 22b...
Magnetic recording emulsion.

Claims (1)

[Claims] 1. Printing is carried out from a color negative film onto a roll of long color photographic paper, and after the printed color photographic paper is developed, it is cut and sorted into specified dimensions in a laboratory process, in which the surface of the color photographic paper support is A laboratory characterized by using color photographic paper coated with a color emulsion and coated with a magnetic recording emulsion on the back side for recording and reading signals, and inputting and outputting information used in laboratory processing to the magnetic recording emulsion. Processing method.