JP3646825B2 - Photosensitive material processing equipment cleaning material and cleaning cartridge - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cleaning material and a cleaning cartridge for photographic photosensitive material processing equipment.
[0002]
[Prior art]
Photoreceptive material processing equipment transports photographic photosensitive materials such as film. Dust peeled off from the film accumulates in the transport path while the film is being transported over and over again. This will adversely affect the transport of materials. In particular, in a film having a magnetic recording part typified by an advanced photographic system, if the magnetic layer or a protective layer for protecting the magnetic layer is peeled off, it adheres to the magnetic head and the reading accuracy by the magnetic head is reduced. The problem of doing so also arises. For this purpose, cleaning of the film transport path and the magnetic heads and sensors arranged on the transport path is periodically performed. Such a cleaning material is used in a head cleaner disclosed in Japanese Utility Model Publication No. 63-38416 (Prior Art 1) or a cleaning card disclosed in Japanese Patent Laid-Open No. 3-203806 (Prior Art 2). Such nonwoven fabrics are known.
[0003]
[Problems to be solved by the invention]
By the way, the nonwoven fabric has a problem that if it is used for a long period of time for cleaning, the fibers constituting the nonwoven fabric have a self-dusting property that the fluff falls off and cannot be cleaned satisfactorily. . Moreover, this nonwoven fabric is suitable for wet type but not for dry type. In order to cope with this problem, the present inventors paid attention to a synthetic fiber that is a material different from the nonwoven fabric. This synthetic fiber is known as a wiping cloth. This wiping cloth is characterized by a very small amount of self-dusting. This feature also has the advantage that it can be used for both wet and dry processes. This wiping cloth can be used for applications such as a magneto-optical disk manufacturing process, printed circuit board cleaning, and contact lens manufacturing process. Found.
[0004]
However, although this wiping cloth is suitable for a cleaning application of a photographic light-sensitive material processing device, there is a problem that it cannot pass through the conveyance path of the photographic light-sensitive material processing device because it is not rigid. In particular, when cleaning the magnetic head of a photographic material processing device, it is necessary to have a rigidity that can withstand conveyance. In such a case, it is troublesome to remove the magnetic head and wipe off the magnetic head with a cotton swab. It is not preferable.
[0005]
An object of the present invention is to provide a cleaning material that can withstand conveyance in a photographic material processing apparatus.
Another object of the present invention is to provide a cleaning material that can be used for both wet and dry processes.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a characteristic configuration of the present invention is a cleaning material for a photographic photosensitive material processing apparatus, wherein the synthetic fiber and the synthetic fiber are provided so that the cleaning material has rigidity equivalent to that of the photographic photosensitive material. An impregnated resin, and has a cleaning surface for performing a cleaning action, an impregnated surface for imparting the rigidity, and an end surface formed by processing after impregnation of the resin, and the resin is disposed on the cleaning surface. It is impregnating about one quarter of the thickness of the synthetic fiber so that the resin does not ooze out. As a result, the rigidity capable of withstanding the conveyance of the photographic photosensitive material processing equipment could be obtained. Therefore, the magnetic head can be cleaned without much trouble. Further, if a wiping cloth having a very low self-dusting property is selected as the synthetic fiber, a wet type and a dry type can be freely selected according to the degree of contamination of the magnetic head. Furthermore, when the resin is impregnated, there is an advantage that processability is improved. This enables processing with a highly versatile Thomson blade rather than ultrasonic processing or heat cutting. This also reduces the processing cost when processing the cleaning material into a predetermined shape.
[0007]
Moreover, as said resin, it can select from urethane type resin, acrylic resin, and silicone type resin , for example. Moreover, an additive can be added to resin by such resin impregnation. This additive also has an advantage that various added values are generated. Examples of such additives include antistatic materials and pigments. By adding additives, antistatic properties, light shielding properties, control of frictional force μ, coloring, and the like can be performed.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the photographic printing apparatus 1 includes an exposure unit 100 that projects and exposes image information of the film 2 onto the photographic paper 3, a development processing unit 101 that develops the exposed photographic paper 3, and the operation of each unit. It comprises a controller 102 for controlling. Connected to the controller 102 are a console 103 for inputting various control instructions and a monitor 104 for displaying image information read by a scanner unit (not shown).
[0009]
When the film 2 to be printed is inserted into the exposure unit 100, the image information of the film 2 is read for each frame, and the image information is sent to the controller 102. The controller 102 determines the exposure condition for each frame based on the read image information of the film 2. Then, an image that will be obtained when projected and exposed on the photographic paper 3 under the determined exposure conditions is simulated and displayed on the monitor 104.
[0010]
If the operator of the photographic printing apparatus 1 looks at the display on the monitor 104 and an appropriate image is not obtained, the operator can input an exposure condition correction instruction determined from the console 103, and the controller 102 is based on the correction instruction. The final exposure condition is determined by correcting the exposure condition. Based on the determined exposure condition, the operation of each unit of the exposure unit 100 is controlled to project and expose the image information of the film 2 onto the photographic paper 3 drawn out from the photographic paper magazine 4.
The photographic paper 3 that has been exposed is conveyed to the development processing unit 101 and developed, and is discharged in a state of being cut one by one corresponding to each frame of the film 2.
[0011]
Hereinafter, the configuration of each unit will be described.
The exposure unit 100 includes a film transport unit 5 that transports and positions the film 2, an exposure light source 6, and irradiation light from the exposure light source 6 as yellow, magenta, and cyan filters exit and exit the exposure optical path. A dimming filter 7 for adjusting the color balance of the image, a mirror tunnel 8 for uniformly mixing the light whose color balance has been adjusted by the dimming filter 7, and a printing lens 9 for forming image information on the film 2 on the photographic paper 3. , A shutter 10, a conveyance roller 11 that conveys the photographic paper 3, and a motor 12 that drives the conveyance roller 11.
The dimming filter 7 and the shutter 10 are controlled by the controller 102, and the position of each filter of the dimming filter 7 and the opening time of the shutter 10, that is, the exposure time, are controlled according to the exposure conditions determined by the controller 102.
Further, the motor 12 conveys the photographic paper 3 in a frame feed state under the control of the controller 102.
[0012]
In FIG. 2, each detector etc. which are provided on the conveyance path | route inside the film conveyance unit 5 are shown. The film transport unit 5 is an example of a photographic material processing apparatus. In a normal use state, the film 2 is transported along the transport path, but the cleaning leader 20 is transported when cleaning the transport path.
On the transport path, transport rollers 50, 51, 52 for transporting the film 2 or the cleaning reader 20, a magnetic head 54 for reading magnetic information from the film 2, and a light emitter for reading information such as a latent image barcode from the film 2 And a photosensor 55 including a light receiver and a mask 56 for defining an image area of the film 2 are provided. The film 2 and the cleaning leader 20 are conveyed in the direction of arrow A in FIG. The conveyance is performed by driving the conveyance rollers 50, 51 and 52 by a motor (not shown).
[0013]
As shown in FIG. 2, the cleaning leader 20 is drawn out from the delivery side 22 wound in a roll shape around the delivery shaft 21, and is taken up in a roll shape around the winding shaft 23 on the winding side 24.
[0014]
Next, the material of the cleaning leader 20 will be described with reference to FIGS. FIG. 3 is an enlarged view of a portion indicated by an arrow B in FIG. The cleaning leader 20 includes a synthetic fiber 30 and a resin 40 impregnated in the synthetic fiber 30 (impregnation of the resin 40 will be described later). A specific example of the synthetic fiber 30 is, for example, a wiping cloth (trade name: Savina Minimax) manufactured by Kanebo Co., Ltd. This material has a very small amount of self-dusting and has an excellent cleaning performance as compared with the nonwoven fabric. Further, it is excellent in water absorption and water retention, and either “wet” or “dry” can be selected according to the degree of contamination of the magnetic head. In addition, there are few elution components such as residual ions, and recontamination is extremely low because dirt is trapped in the fiber. And fine particles that could not be cleaned with a conventional nonwoven fabric can be wiped off. Furthermore, since no abrasive is used, wear of the magnetic head 54 can be suppressed when the magnetic head 54 is cleaned.
If such a synthetic fiber 30 is used for cleaning in the film transport unit 5, many advantages can be expected. However, since the synthetic fiber 30 itself has a low rigidity, the cleaning leader 20 is composed of only the synthetic fiber 30. Then, there is a difficulty in carrying it in the form as shown in FIG.
[0015]
Therefore, as shown in FIG. 3, a curing process (hard finishing process) for giving the synthetic fiber 30 rigidity is performed. Here, resin impregnation or resin coating is suitable as the hard finishing. The resin 40 to be impregnated is a fraction of the thickness of the cleaning reader 20, preferably about a quarter. By impregnating the resin 40, the cleaning leader 20 is formed with a cleaning surface 20a and an impregnation surface 20b that actually perform a cleaning action. By adjusting the amount impregnated with the resin 40, the rigidity of the cleaning leader 20 can be adjusted. However, it is necessary to prevent the resin 40 from seeping out into the cleaning surface 20a. FIG. 4 shows FIG. 3 in a form close to the actual one. The synthetic fiber 30 is composed of a weft thread 31 and a warp thread 32. Typical examples of the resin 40 to be impregnated include urethane resin, acrylic resin, and silicone resin.
[0016]
By impregnating the resin 40, not only the rigidity of the cleaning leader 20 is improved without impairing the above-described advantages of the synthetic fiber 30, but also an additive such as an antistatic material or a pigment is added to the resin 40. In addition, additional merits such as antistatic, light-shielding property, control of frictional force μ, and coloring are generated. For example, when a black pigment is added, the appearance of the cleaning reader 20 can be finished in black, and the light shielding property is improved.
Furthermore, when the resin 40 is impregnated, workability is improved. The cleaning leader 20 is formed in a long and narrow shape like the film 2. In order to make such a shape clean, the end face of the outer shape needs to be heat-cut or ultrasonically processed if the synthetic fiber 30 is not impregnated with the resin 40. However, when the resin 40 is impregnated to improve the rigidity, processing with a highly versatile Thomson blade can be performed, and processing costs can be reduced.
[0017]
Next, the cross-sectional shape of the raw yarn 60 used for the synthetic fiber 30 is shown in FIG. This is the original yarn 60 used in the above-mentioned trade name Savina Minimax and is called by the trade name “Berryma X”. The raw yarn 60 is a 0.1 micron ultrafine fiber. FIG. 6 shows the principle of catching the dirt 61. The raw yarn 60 is made of polyester and nylon having a wedge-shaped cross section and efficiently fits on the surface of each detector of the film transport unit 5 so that dirt can be reliably captured.
[0018]
Next, an example in which the cleaning leader 20 is housed in the cartridge 70 will be described with reference to FIGS. The same number is attached | subjected to the member which is common in FIG. This cartridge 70 is the same as that for winding and storing the film 2. The outer shape of the cleaning leader 20 is a long shape similar to that of the film 2, and the width dimension is the same. Of course, it is good also as the same shape. The length of the cleaning leader 20 does not need to match that of the film 2 and may be a length necessary for cleaning. Further, the width dimension of the cleaning leader 20 may be smaller than that of the film 2. The cartridge 70 is provided with a hole 71 and a drawer port 72 for driving the spool.
[0019]
Next, the operation of cleaning the transport path in the film transport unit 5 will be described with reference to FIG.
First, the cartridge 70 in which the cleaning leader 20 is completely stored is set in the cartridge holding unit of the film transport unit 5. After the cartridge 70 is set, the spool of the cartridge 70 is rotated in the anti-winding direction by a predetermined start signal, and the tip of the cleaning leader 20 is pulled out from the drawer port 72 (this operation is called a thrust operation). In order to perform this thrust operation, the cleaning leader 20 needs to have the same rigidity as the film 2, but since the resin 40 is impregnated, the thrust operation can be performed without any trouble. Further, since there is a distance between the position where the cartridge 70 is set and the magnetic head 54 to be cleaned, the cleaning leader 20 must be pulled out to at least the position where the magnetic head 54 is provided, but the resin 40 is impregnated. Since the rigidity is improved, it can be transported smoothly.
[0020]
Once the cleaning leader 20 is pulled out, it is transported in the transport path by the transport rollers 50, 51, 52 and the magnetic head 54 and the like are cleaned. The cleaning leader 20 may be completely pulled out of the cartridge 70. In this case, the transport rollers 50, 51, 52 are driven in a direction in which the cleaning reader 20 is stored in the cartridge 70. Thereby, one end of the cleaning leader 20 can be attached to the spool of the cartridge 70 again (this is called an attach operation). This attach operation can also be performed smoothly since the rigidity is improved. As described above, when the cleaning is completed, the cleaning leader 20 is stored in the cartridge 70.
[0021]
Furthermore, another embodiment of the present invention will be described.
(1) As a curing treatment, a sheet-like material formed of PET (polyethylene terephthalate) or the like may be attached to the synthetic resin 30 in addition to the resin 40 impregnated (indicated by reference numeral 40 in FIG. 3). Things shall be in sheet form.)
(2) Although the film transport unit 5 has been described as an example of a photographic material processing apparatus, it is not always necessary that the apparatus is unitized. Further, it can be used not only for cleaning the conveyance path of the photographic paper 3 but also the film 2.
(3) It is not necessary to perform the curing process over the entire area of the cleaning leader 20 formed in a long shape, and the curing process may be performed only on the tip portion. This is because rigidity is particularly required when the tip of the cleaning leader 20 is first fed into the film transport unit 5.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of a photographic printing apparatus. FIG. 2 is a diagram showing a transport path of a film transport unit. FIG. 3 is an enlarged cross-sectional view of a cleaning leader. Fig. 6 is an enlarged view of the raw yarn constituting the (wiping cloth). Fig. 6 is a diagram showing the principle that the synthetic fiber (wiping cloth) catches dirt.
[Figure 8] External view of cartridge [Explanation of symbols]
5 Film transport unit 20 Cleaning leader 30 Synthetic fiber 40 Resin

Claims (4)

A cleaning material for a photographic photosensitive material processing device, comprising a synthetic fiber and a resin impregnated in the synthetic fiber so that the cleaning material has a rigidity equivalent to that of the photographic photosensitive material, and also has a cleaning function. A cleaning surface, an impregnating surface for imparting the rigidity, and an end surface formed by processing after impregnation of the resin. The resin has a thickness of 4 minutes of the synthetic fiber so that the resin does not ooze out on the cleaning surface. A cleaning material for photographic light-sensitive material processing equipment impregnated with about 1 of the above .   The cleaning material for a photographic photosensitive material processing apparatus according to claim 1, wherein the resin is a resin selected from a urethane resin, an acrylic resin, and a silicone resin.   The cleaning material for a photographic light-sensitive material processing apparatus according to claim 1, wherein either one of an antistatic material and a pigment is added to the resin.   A cleaning cartridge containing the cleaning material according to claim 1, wherein the cartridge can be set in a cartridge holding portion of the photographic photosensitive material processing apparatus, and the cartridge holding portion A cleaning cartridge that performs cleaning by being transported in a transport path of the photographic material processing apparatus with the cleaning material drawn out from the cartridge set in the cartridge.

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