JPH0619543B2 - How to process photographic paper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a photographic paper processing method for obtaining a photographic print by developing a long photographic paper on which an image has been printed and separating it into image frames. .

[Background Art] When printing an image on a negative film on a long photographic printing paper and developing it to make a photographic print, after printing a plurality of images, one example is given for each predetermined multiple image frame length. For each request from a different customer, the photographic paper is primarily cut and sent to the developing device, and after development, each image frame is secondarily cut. As a result, the prints of each customer are distinguished from the prints of other customers and the correspondence with the negative film is facilitated.

However, since the images are printed on the photographic paper at a predetermined interval, the first image frame is printed in the vicinity of the cut end face even in the primary cutting portion of the predetermined plural image frames. At the cut end surface, the developing solution enters the photographic paper at the time of development after printing, which may adversely affect the leading image frame portion.

SUMMARY OF THE INVENTION In consideration of the above facts, an object of the present invention is to provide a photographic paper processing method for obtaining a photographic print in which the developer does not seep into the image frame portion from the primary cutting portion of a predetermined plurality of image frames.

[Outline and Action of the Invention] In the present invention, a long photographic printing paper on which images are sequentially printed is first cut into a predetermined length of a plurality of image frames and sent to a developing device for development processing, and the development processing is completed. In a method of processing photographic paper in which a photographic paper having a predetermined length of a plurality of image frames is secondarily cut between the image frames and separated for each image frame, a leading portion having a predetermined length is provided at the tip of the plurality of image frames at the time of the primary cutting. It is characterized in that it is cut at a different position, the image frame portion is developed together with the leading portion, and then the leading portion is cut off from the image frame.

In the present invention, a photographic printing paper having a predetermined length of a plurality of image frames is provided with a leading section provided between the cutting end face and the image frame at the primary cutting section and fed into the developing device, and the photographic printing paper is separated into image frames after the developing process. Cut this leading part when cutting into. This makes it possible to obtain a high-quality photographic print in which the image frame portion is not affected by the infiltrated developer even when the developer infiltrates and swells from the primary cut end surface during the development processing of photographic paper. it can.

[Embodiment of the Invention] FIG. 2 shows a photographic printing and developing apparatus 10 to which the present invention is applied. The photographic printing / developing device 10 has a structure in which a printing device 12 and a developing device 14 are integrally connected. In the printing device 12, the printing paper 20 drawn from the outer periphery of a roll-shaped printing paper 18 stored in a magazine 16. After being printed in the printing section 22, the image is sent to the developing device 14 via the reservoir section 24.

The developing device 14 is provided with a developing bath 26, a bleach-fixing bath 28, and a washing bath 30. The developed photographic printing paper 20 is dried in a drying section 32 and then cut by a cutter 34 for each image to be taken out in an extracting section 36.
It is being sent to.

A light source 40 is provided below the printing unit 22, and an image of the negative film accommodated in the negative carrier 42 is formed by the optical means 44.
It is possible to print on the emulsion surface of the photographic paper 20 via the.

As shown in detail in FIG. 3, in the printing unit 22, the feed roller 48 is rotated by the driving force of a motor (not shown), and the photographic printing paper 20 is fed to the mask 52.

In the downstream of the mask 52, the feed belt 54 is attached to the guide roller 5
6 and 58, the feed roller 62 is pressed against the intermediate portion of the feed belt 54, and the photographic printing paper 20 after printing is sandwiched between the feed belt 54 and the feed belt 54, and the photographic paper 20 can be fed toward the reservoir portion 24. It is like this.

A cutter 64 is provided between the feed belt 54 and the reservoir portion 24 so as to cut the photographic paper 20 when necessary. The cutter 64 performs primary cutting to cut one order (including a plurality of printing image frames) of the printing paper 20 at a boundary with another order, and the cutter 34 after the drying unit 32 prints the printing paper 20. Secondary cutting is performed to cut 20 for each image frame.

A dot printer 66 is attached to the mask 52, and a cut mark 68 (see FIG. 1) is placed on the photographic paper 20.
Can be displayed instantly. Instead of the dot printer 66, a punch or the like for forming a small hole may be provided in a part of the printing paper 20. A sensor for detecting the cut mark 68 and operating the cutter 34 to perform the secondary cutting is provided near the cutter 34.

Next, the operation of this embodiment will be described.

The roll-shaped printing paper 18 in the magazine 16 is the feed roller 4
It is sent to the printing unit 22 by the driving force of 8,50,
As shown in FIG. 1 (A), the tip irregularity portion 20A is cut off by the cutter 64. Here, the photographic printing paper 20 is returned by a slight amount by the reverse rotation of the feed rollers 48 and 50, and the image 70 is printed near the leading end. A leading portion 74 having a length L from the cut end surface 72 is provided before the portion where the image 70 is printed.
(Indicated by diagonal lines) are provided.

An image is not printed on the leading portion 74, and the dot printer 6 is provided between the leading portion 74 and the image 70 at the leading end.
At 6, a cut mark 68 is added. After that, a cut mark 68 is added between each image.

After baking, the developing process is performed in the developing device 14 with the cut end face 72 as the leading end.
The developing solution in 4 permeates. But this lead 7
Since No. 4 has a margin of length L, the infiltrated developer does not reach the image 70 portion.

When the photographic printing paper 20 after development reaches the cutter 34, each image is cut at the cut mark 68 portion to make a photographic print, but the leading portion 74 is separated from the image 70 at the leading edge, so the developing solution permeates. The photographic print containing the dark portion does not occur.

FIG. 1 (B) shows the time when one image printing is completed.
That is, generally, the printing paper 20 is cut at the time when printing for one order is completed, and the leading portion 74 is provided at this cutting portion. Also in this case, the cut marks 68 are respectively provided between the last image frame 70A of the previous printing request and the first image frame 70B of the next printing request, and the leading portion 74 is formed between these cut marks 68.

Therefore, the end portion of the last image frame of the previous printing request is primarily cut by the cutter 64 to become the cut end surface 72, and after development, the leading portion 74 is secondarily cut by the cutter 34 and is brought into contact with and separated from the leading image frame 70B.

In each of the above-mentioned embodiments, a means for giving an order mark 76 (see FIGS. 1 (A) and (B)) to a portion different from the cut mark 68 in order to perform the primary cutting at the cut end surface 72 is provided. Alternatively, the order mark 76 may be detected by a sensor and the cutter 64 may be used for the primary cutting.

[Effects of the Invention] As described above, according to the present invention, at the time of primary cutting, cutting is performed at a position where a leading portion of a predetermined length is provided at the tip of a plurality of image frames, and after the image frame portion is developed together with the leading portion, It is characterized in that it is cut from the leading portion image frame. As a result, there is an excellent effect that high quality photographic prints can be obtained without adversely affecting the finished photographic prints due to the permeation of the developing solution.

[Brief description of drawings]

FIG. 1 is a plan view showing a printing state of photographic printing paper used in the present invention, FIG. 2 is a vertical sectional view of a photographic printing developing apparatus to which the present invention is applied, and FIG. 3 is an enlarged view of a printing unit. DESCRIPTION OF SYMBOLS 10 ... Photographic printing developing device, 12 ... Printing device, 14 ... Developing device, 20 ... Printing paper, 22 ... Printing part, 34 ... Cutter, 64 ... Cutter, 66 ... Dot printer, 68 ... Cut mark, 72 ... Cutting end surface, 74 ... Leader, 76 ... Order mark.

Claims (1)

[Claims] 1. A predetermined length of a plurality of image frames for which a long photographic printing paper on which images are sequentially printed is first cut at a predetermined length of a plurality of image frames and sent to a developing device for development processing. In the processing method of the photographic paper in which the photographic paper is secondarily cut between the image frames and separated for each image frame, the photographic paper is cut at a position where a leading portion of a predetermined length is provided at the tip of the plurality of image frames during the primary cutting. A method of processing photographic paper, comprising: developing the image frame portion together with the leading portion, and then cutting off the leading portion from the image frame.