JP2679906B2 - Plate inspection equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate making apparatus,
The present invention relates to a plate inspection making apparatus for making an inspection plate used at the time of checking the quality of a color printed matter by using an ultraviolet-sensitive photosensitive material.

[0002]

2. Description of the Related Art When printing a large amount of color printing on a printing press, for example, a color advertisement attached to a newspaper or the like (a so-called folding advertisement), the printing press is used to check the color advertisement. Plate making device (color proof making device)
Is used to check in advance before actually printing.

An overlay method is one of the typical color proofing apparatuses. This method is a method of reproducing an image by superposing each color material film, and it is impossible to see through the film, and the image deteriorates.

[0004] In addition, there is a method called a surprint method as a method for obtaining an image on one sheet. This system is a system in which photosensitive films of four colors are sequentially superposed on one sheet of support to obtain an image. This method includes chromin (made by DuPont, trade name), match print (3
M, product name), color art (Fuji Photo Film Co., product name), etc. are known, but all require four photosensitive films, and waste is generated.

In addition, a color paper system is known as a method for forming a color image on one photosensitive sheet. This method is a method in which a film original is brought into close contact with a color paper, exposed using each color filter, and wet-developed to obtain a color image. Fine checker (manufactured by Fuji Photo Film Co., product name), consensus (Konica Corporation) Made, trade name) is known. In this method, since the sensitivity range of the color paper is in the visible range, a dark room or an exposure device having a dark room is required for handling, and maintenance management of the developer is required.

These methods require a plurality of sheets, generate waste such as transfer sheets and toner, are difficult to handle in a bright room, and require a developing system using a developing solution. Therefore, there is a need for improvement.

Therefore, it is conceivable to use a photosensitive material which does not generate waste and is easy to handle in a bright room and has no photosensitivity in the visible light range. As such a light-sensitive material, two components of a two-component type thermosensitive coloring medium in which two components are separated and arranged by separating microcapsules containing a photocurable composition (JP-A-52-89915) and an acidic group are used. A stack of a layer containing the vinyl monomer and the photopolymerizable composition, an isolation layer, and a layer composed of an electron-donating colorless dye (Japanese Patent Laid-Open No. 61-123838), and a plurality of photosensitive layers that emit different colors. Each photosensitive layer has a central wavelength (JP-A-1-224930, JP-A-2-19710).
And the like have been proposed. According to this, a visible image can be formed by forming a latent image on the photocurable composition by exposure and then heating it.

By using this ultraviolet-sensitive photosensitive material, processing in a bright room is possible and no waste is generated.
In order to create a color proof using this ultraviolet-sensitive photosensitive material, it is necessary to use a light source that emits ultraviolet light to irradiate light in a wavelength range corresponding to the photosensitive wavelength range in which the photosensitive material develops color.

In consideration of the above facts, the present invention makes it possible to prepare an inspection plate in a bright room by irradiating the light-sensitive material with ultraviolet light, and it is possible to prepare an inspection plate having good color separation and high sharpness. The purpose is to provide a plate inspection device.

[0010]

In order to achieve the above-mentioned object, the plate inspection device according to claim 1 of the present invention is an ultraviolet ray forming a dye image by irradiating and heating light in the ultraviolet wavelength range. A light source for irradiating a photosensitive light-sensitive material with ultraviolet light, wherein the light-source is a light source for irradiating the light-sensitive material with ultraviolet light from the light source to the light-sensitive material to make a plate inspection. As the electrodeless light source, at least three filters that can be inserted into the optical path between the light source and the photosensitive material and that transmit ultraviolet light in different ultraviolet wavelength regions corresponding to at least three photosensitive wavelength regions of the photosensitive material are used. At least one heat insulating filter is provided between the filter and the light source, the filter is sequentially inserted into an optical path, and the photosensitive material is exposed to ultraviolet light in each of the ultraviolet wavelength ranges. To.

The invention described in claim 2 is the plate inspection preparation apparatus described in claim 1, wherein the filter is an interference filter.

According to a third aspect of the present invention, there is provided a plate inspection preparation apparatus, which is a light source for irradiating ultraviolet light to an ultraviolet light-sensitive photosensitive material which forms a dye image by irradiating and heating light in the ultraviolet wavelength range. A plate inspection preparation apparatus for producing an inspection plate by irradiating the photosensitive material with ultraviolet light from the light source through an image original, which corresponds to at least three photosensitive wavelength regions of the photosensitive material as the light source. At least three light sources that emit ultraviolet light in different ultraviolet wavelength ranges are used, and the plurality of light sources are turned on independently or simultaneously to expose the photosensitive material.

According to a fourth aspect of the present invention, the plate making apparatus irradiates an ultraviolet light-sensitive photosensitive material which forms a dye image by irradiating and heating light in the ultraviolet wavelength range with ultraviolet light through an image original. A plate making apparatus for making a plate inspection by a linear light source for irradiating the ultraviolet light-sensitive photosensitive material with ultraviolet light,
Moving means for relatively moving the ultraviolet light-sensitive photosensitive material and the image original and the light source, optical means for making the ultraviolet light from the light source parallel, and ultraviolet light corresponding to the image original from the ultraviolet light of the light source And an ultraviolet light selecting means for selecting.

A plate inspection preparation apparatus according to a fifth aspect of the present invention is the plate inspection preparation apparatus according to the fourth aspect, wherein the image original is provided between the light source and the ultraviolet photosensitive material as the ultraviolet light selecting means. Is provided, and the ultraviolet light corresponding to the image original is selected by the filter from the ultraviolet light that has passed through the optical means.

A plate inspection preparation apparatus according to a sixth aspect of the present invention is the plate inspection preparation apparatus according to the first to fifth aspects, characterized in that the light source is located below the image original.

A plate inspection preparation apparatus according to a seventh aspect of the present invention is the plate inspection preparation apparatus according to the first to fifth aspects, characterized in that the light source is located above the image original.

[0017]

The plate inspection apparatus according to claim 1 is provided with a light source for irradiating ultraviolet light to the ultraviolet light-sensitive photosensitive material which forms a dye image by irradiating and heating light in the ultraviolet wavelength range, Ultraviolet light from the light source is applied to the photosensitive material through an image original to produce a plate inspection. An electrodeless light source is used as the light source, and a filter can be inserted in the optical path between the light source and the photosensitive material. There are at least three filters, which transmit ultraviolet light in the ultraviolet wavelength range corresponding to at least three photosensitive wavelength ranges of the photosensitive material. A heatproof filter is provided between the filter and the light source to prevent the temperature rise and fading of the filter. Here, the filters are sequentially inserted into the optical path to irradiate the photosensitive material with ultraviolet light in each ultraviolet wavelength range through the image original, and then the photosensitive material is heated and developed. As a result, a dye image corresponding to at least three light-sensitive wavelength regions of the light-sensitive material is formed on the light-sensitive material to form a color proof. This allows the inspection plate to be created in the bright room.

According to the second aspect of the present invention, by using an interference filter as the filter, it is possible to make the wavelength range in which the half-value width of the transmitted light is narrow. Therefore, 1
With one exposure, only the photosensitive layer in one photosensitive wavelength region of the photosensitive material can be exposed, and the photosensitive layer in the other photosensitive wavelength region of the photosensitive material is not exposed, so that there is no color mixture. , It is possible to create a color proof with good color separation.

The plate inspection device according to claim 3 is provided with a light source for irradiating the ultraviolet light-sensitive photosensitive material which forms a dye image by irradiating and heating light in the ultraviolet wavelength range with ultraviolet light. Ultraviolet light from the light source is applied to the photosensitive material via an image original, and the photosensitive material is heated to form a dye image.

As this light source, at least three light sources that emit ultraviolet light in different ultraviolet wavelength ranges are used. Here, the light sources are turned on independently or simultaneously. Thereby, a dye image corresponding to at least three light-sensitive wavelength regions of the light-sensitive material is formed, whereby a color proof is created. This allows the inspection plate to be created in the bright room.

In the plate inspection making apparatus according to the fourth aspect, the ultraviolet light from the light source is made into parallel light by the optical means. Also,
The ultraviolet light selecting means selects the ultraviolet light according to the image original and irradiates the photosensitive material. As a result, the photosensitive material is exposed by being exposed to ultraviolet light corresponding to the image original through the image original. The light source is in each of the ultraviolet light sensitive region of the light-sensitive material, that is,
If it is provided separately for multiple image documents,
Either light source is selected by the ultraviolet light selecting means.

In this plate inspection making apparatus, a linear light source such as a fluorescent tube is used as a light source. A fluorescent tube or the like has a small amount of heat generation. Therefore, even if a photosensitive material developed by heating is used, the photosensitive material is not heated by the heat from the light source.

Exposure is performed by moving the linear light source relative to the ultraviolet-sensitive photosensitive material and the image original. That is, either a linear light source may be moved by a moving means, or an ultraviolet-sensitive photosensitive material and an image can be moved.

The light source may be a combination of a plurality of light sources, and the ultraviolet light emitted from the same light source may correspond to the entire photosensitive area of the photosensitive material. Also,
The ultraviolet light selecting means irradiates only the ultraviolet light corresponding to the photosensitive area of the photosensitive material toward the photosensitive material.

Further, as described in claim 5, the ultraviolet light from the light source can be selected and extracted by a filter. Filters corresponding to the image original are arranged between the optical means and the photosensitive material, and ultraviolet light can be selected and radiated to the photosensitive material by inserting and removing these filters. The light from the light source is collimated and directed to the photosensitive material, selected by the filter according to the image original and exposing the photosensitive material through the image original. Since the photosensitive material is irradiated with ultraviolet light at a right angle to the photosensitive surface, even if an image original with an image formed on it is placed on the upper surface of the photosensitive material, the ultraviolet light does not pass through the image original without being refracted. To expose the photosensitive material. As a result, the image formed on the light-sensitive material has a high sharpness, and this plate inspection device can create a plate inspection with good color separation.

The filter as the ultraviolet light selecting means is
The interference filter can be applied, but a dye filter can also be applied. Further, a plurality of light sources and a plurality of filters may be provided, and by combining these, ultraviolet light corresponding to the image original may be extracted to expose the photosensitive material.

As described in claims 6 and 7, in the plate inspection making apparatus of the present invention, the position of the light source can be arranged above the light-sensitive material or can be arranged below the light-sensitive material. . By irradiating the photosensitive material with the ultraviolet light from this light source through the image original, a latent image corresponding to the image original is formed on the photosensitive material.

[0028]

【Example】

[Embodiment 1] Embodiment 1 of the present invention will be described in detail with reference to the drawings.

The plate inspection device 10 shown in FIG.
Before the actual printing is performed using each manuscript film that has been color-separated into plates, M plate, C plate, and BK (sumi) plate, there is no error in the layout of the manuscript film, there is no difference in color, or an error in the characters It is an inspection plate making device for making a color proof to inspect whether there is any
After being positioned one by one and sequentially superimposed on an ultraviolet light-sensitive material and subjected to multiple contact exposures, heat development is performed to form a color proof.

FIG. 1 of the casing 12 of the plate inspection making apparatus 10.
A photosensitive material roll accommodating portion 14 is provided on the upper left side of the photosensitive material roll accommodating portion 14, and the photosensitive material roll accommodating portion 14 is loaded with a magazine 18 accommodating the photosensitive material 16. An opening 14 </ b> A is provided on the upper surface of the photosensitive material roll housing 14.

A rotary knob 20 is provided on the front surface of the photosensitive material roll accommodating portion 14, and the photosensitive material 16 is opened in the opening 14A by rotating the rotary knob 20 in the clockwise direction.
It is to be carried out from. Photosensitive material roll storage unit 1
A cutter 22 is provided in the fourth opening 14A.
The cutter 22 is interlocked with a slide knob 24 provided at an upper part of the front surface of the photosensitive material roll accommodating section 14, and cuts the photosensitive material 16 by operating the slide knob 24. Therefore, the operator can control the photosensitive material roll storage unit 14.
The photosensitive material 16 drawn out from the nip can be cut into a predetermined length by the cutter 22.

An exposed portion 26 is formed in a substantially central portion of the upper surface of the casing 12. A rectangular notch is formed in the exposure unit 26, and a transparent glass plate 28 is inserted into the notch. Exposure section 26 of casing 12
A pair of positioning pins 30 are provided upright on the front side of the device, and the positioning pins 30 are connected to the Y, M, C, and B plates.
Each original film 32 can be easily and accurately positioned by being inserted into a positioning hole formed in an edge of each original film 32 that has been color-separated into a K (sumi) plate.

The exposure section 26 is covered with an upper lid 34. The upper lid 34 is attached to the casing 12 by a hinge 35, and the upper lid 34 can swing about the hinge 35 as a rotation center.

As shown in FIG. 2, the upper lid 34 is a box-shaped body having an internal space 36, to which a suction pipe 38 is connected. This suction pipe 38 is
2 is connected to a blower 40 disposed therein. The blower 40 is provided with a control device 4 provided in the casing 12.
2, and the blower 40 is controlled to be turned on and off by a control device 42. Therefore, when the blower 40 operates, the upper lid 3 is moved through the suction pipe 38.
The interior space 36 of No. 4 is sucked and decompressed.

A plurality of small holes 37 are formed in the surface (pressing surface) 34A of the upper lid 34 which presses the photosensitive material 16, and when the internal space 36 of the upper lid 34 is depressurized, the pressing surface. The photosensitive material 16 is adsorbed on 34A.

As shown in FIG. 3, a Fresnel lens 29 is closely attached to the lower portion of the glass plate 28 in the casing 12 so that the photosensitive material 16 is irradiated with parallel light through each original film 32. Has become. FIG. 3 shows an example in which the negative photosensitive material 16 is exposed to light.
8 on the original film 32 Y plate, M plate, C plate and BK
The images on the plate are sequentially exchanged and the photosensitive material 16 is baked four times in total. When the positive type photosensitive material 16 is exposed, the BK plate is placed on the side closer to the light source, and the Y plate, the M plate, and the C plate are sequentially stacked and baked three times in total. Further, a groove is provided near the outer periphery of the glass plate 28, and during exposure, an air layer between the photosensitive material 16 and the original film 32 and between the glass plate 28 and the original film 32 by suction with a suction pump or the like. It eliminates the air layer of and sticks them together. Each of the manuscript films 32 has a Y plate and an M plate.
An identification symbol is attached to identify which image is a plate, C plate, and BK plate, so that the desired original film 32 can be easily selected.

Below the Fresnel lens 29, a light source that emits ultraviolet light is arranged.

Here, in this embodiment, as the light source, there is little change in the light intensity with the passage of time and the ultraviolet wavelength range (for example,
The electrodeless light source 44 has a light intensity distribution required to provide proper exposure to a light-sensitive material having at least three spectral sensitivities in the wavelength range of 330 to 435 nm. It is known that the electrodeless light source 44 emits ultraviolet light of high light intensity. The electrodeless light source 44 includes a reflector 46 having a substantially hemispherical shape. A position slightly shifted from the focal point of the reflector 46 to the opposite side (the lower side in FIG. 3) of the glass plate 28 is defined as the electrodeless light source 44. Is a light emitting point 48.
Therefore, a part of the light emitted from the light emitting point 48 is directly emitted to the glass plate 28 in the direction of the light emitting point 4 and
A part of the light emitted from 8 is emitted toward the glass plate 28 as the reflected light reflected by the reflection plate 46.

The interference filter unit 4 is provided near the electrodeless light source 44 between the electrodeless light source 44 and the Fresnel lens 29.
9 are arranged. This interference filter unit 49
Is composed of a disk-shaped turret 50 and a drive motor 52 having a drive shaft connected to the axis of the turret 50. As shown in FIG. 1, the turret 50 includes
Four circular holes 54 are formed at substantially equal intervals around the axis,
In these circular holes 54, three interference filters 56A, 56B and 56C for exposing the original film 32 corresponding to each of the Y plate, the M plate, the C plate, and the BK (Sumi) plate and the transparent glass (or the middle plate) are exposed. And a gray filter 57) are attached.

In the interference filter used in this embodiment, thin film vapor deposition is applied to the surface of the parallel plate glass 80. As shown in FIG. 9, the interference filter 56 is formed by uniformly or alternately depositing thin films of metal 82 or dielectric 84 on the surface of a parallel plate glass 80, and at the time of forming the thin film, the thickness of the thin film and the thin film forming process are performed. The wavelength range of transmitted light can be specified when collimated light is incident by changing the material. Here, light emitted radially from a light emitting point, such as a point light source, is incident obliquely except at the center of the interference filter optical axis. However, if the incident angle of this interference filter changes, the wavelength of the transmitted light changes. Since the area is expanded, the photosensitive layer other than the photosensitive layer of the photosensitive material to be exposed is also exposed at the same time, resulting in color mixing of the final image and poor color separation. Therefore, for example, as shown in FIG. 8, the thin film is formed so as to gradually thicken from the vicinity of the optical axis to the peripheral portion. Further, the material for forming the thin film is properly selected so that the specified wavelength range is transmitted. As a result, the interference filter keeps a predetermined half-width even for the light emitted from the point light source and obliquely incident on the interference filter.

In this embodiment, the positive type photosensitive material 1 is used.
In the case of No. 6, as the original film 32, the Y plate is overlaid with the BK (Sumi) plate, the M plate is overlaid with the BK (Sumi) plate, and the C plate is overlaid with the BK (Sumi) plate. The ultraviolet light generated by the light-sensitive material 44 is applied to the photosensitive wavelength range of the photosensitive material 16 corresponding to cyan (C), magenta (M), and yellow (Y) (for example, C = 400 to 43).
5 nm, M = 365-400 nm, Y = 330-365 nm)
Then, the interference filter 56 divides and exposes (state of FIG. 3). In the case of the negative type photosensitive material 16, the original film 32 is a Y plate, an M plate, a C plate, or BK (smudge).
The plate is brought into close contact with the photosensitive material 16 in order, and the ultraviolet light generated by the electrodeless light source 44 interferes with the photosensitive wavelength region of the photosensitive material 16 corresponding to cyan (C), magenta (M), and yellow (Y), respectively. While being decomposed by the filter 56, exposure is performed by a transparent glass (or a neutral gray filter) 57 that passes ultraviolet light in the entire photosensitive wavelength region of the photosensitive material corresponding to BK (smudge). Alternatively, only the filter insertion hole may be used without using transparent glass. In the exposure corresponding to this BK, a correction filter having absorption in the ultraviolet region may be used instead of the transparent glass 57 or the neutral gray filter in order to correct the spectral sensitivity in the ultraviolet light sensitive region.

The interference filter 56 may be one filter for each transmission wavelength range, but it is preferable to combine two or more filters to narrow the half width.

The drive motor 52 is composed of a stepping motor, and rotates the turret 50 by a predetermined angle in response to a signal from the control device 42 to cause interference on the optical path between the electrodeless light source 44 and the Fresnel lens 29. Filter 56
And a transparent glass (or a neutral gray filter) 57 are put in and taken out. Further, the control device 42 is connected to a filter selection button 62 provided on the front side of the exposure unit 26 of the casing 12, and the control device 42
The rotation of the drive motor 52 is controlled so that the interference filter 56 or the transparent glass 57 selected by the filter selection button 62 is inserted into the optical path between the electrodeless light source 44 and the Fresnel lens 29. .

Further, the filter selection button 62 is used for the original film C, M, and Y original films 32, which are the original film types.
, The filter selection buttons 62A, 62B,
62C and negative type photosensitive material 16 filter selection button 62D for BK (sumi) plate original film 32
It is composed of

An exposure start button 63 and an exposure stop button 65 are provided near the filter selection button 62, and the exposure start button 63 and the exposure stop button 65 are connected to the controller 42, respectively. .

As shown in FIG. 3, the interference filter 56.
A heat insulating filter 45 is provided between the light source 44 and the light source 44. Thereby, the temperature rise of the interference filter 56 is prevented.

A temperature sensor 58 is attached to each interference filter 56. These temperature sensors 58 are
When the temperature of the interference filter 56 is connected to the control device 42 and exceeds a predetermined value, the control device 42 causes
The start of exposure is prohibited, and when the temperature of the interference filter 56 becomes equal to or lower than a predetermined temperature, the control device 42 enables the start of exposure.
Further, a lamp 60 as a temperature rise warning means is provided on the front side of the exposure unit 26 of the casing 12, and the lamp 60 blinks by the output of the control device 42.

A blower port of the blower 55 is opened near the interference filter 56 to prevent the temperature of the interference filter 56 from rising due to the blown air from the blower 55.

As shown in FIG. 3, a louver 64 is arranged on the electrodeless light source 44 side of the interference filter 56 along the optical path.

As shown in FIG. 4, the louver 64 is composed of a plurality of (7 to 8) ring-shaped fins 66A, 66B, ... Arranged coaxially, and each fin 66A. , 66B, ... Are connected to each other by two beams intersecting at substantially right angles passing through the axis. Further, the fins 66A, 66B, ... Are expanded in diameter from the electrodeless light source 44 side (the lower side in FIG. 4) toward the interference filter 56 side. The rate has been increased. Also, the outermost fin 66A (louver 6)
4) The maximum diameter D is approximately 160 mm, and the louver 64
Has a length M of 40 mm in the optical path direction. Therefore, the louver 6 is emitted from substantially the same direction as the direct light emitted from the light emitting point 48 and the direct light reflected by the reflection plate 46 and reflected.
Only the light that has entered the louver 4 can pass through the louver 64.

As shown in FIG. 3, an integrating light quantity meter 68 is arranged on the electrodeless light source 44 side of the louver 64. This integrated light meter 68 is connected to the control device 42,
The control device 42 calculates the exposure amount applied to the photosensitive material based on the input from the integrated light amount meter 68, and turns off the electrodeless light source 44 when the integrated light amount reaches a predetermined value. .

As shown in FIG. 5, the control device 42 includes a microcomputer 70. The micro computer 70 includes a CPU 72, a RAM 74, an R
It comprises an OM 76, an input / output port 78, and a bus 80 such as a data bus or control bus connecting these.

The stepping motor 52, the electrodeless light source 44, the blower 40, the temperature sensor 58, etc. are connected to the input / output port 78 of the microcomputer 70 via a driver 75.

As shown in FIG. 1, a heat development section 81 is provided on the right side of the casing 12 of the plate inspection device 10, and a photosensitive material insertion hole 8 is provided above the heat development section 81.
3A is drilled. Further, in the heat developing section 81, one heat roller 86 and one belt 87 are incorporated. A heater (not shown) and a temperature sensor (not shown) of the heat roller 86 are each connected to the control device 42, and the heat roller 86 is controlled to be heated to a predetermined temperature by the control device 42. Therefore, the exposed photosensitive material 1 inserted from the photosensitive material insertion hole 83A
6 is conveyed along the belt 87 and is heated by the heat roller 86.
The photosensitive material 16 is conveyed while being in contact with it for about 3/4 rotation, and is thereby heat-developed.
Further, on the right side surface of the heat developing section 81, a photosensitive material carry-out hole 83
B is bored, and the heat-developable photosensitive material 16 is discharged from the photosensitive material discharge hole 83B, and is accommodated in the tray 90 disposed below the photosensitive material discharge hole 83B. There is.

The operation of the first embodiment will be described below with reference to the control flow chart of FIG. First, the operator sets the original film 32, for example, in the case of the positive type photosensitive material 16, the Y plate and the BK (Sumi) plate in the exposure unit 26 of the plate inspection / making apparatus 10. In this case, the operator
The front side positioning pin 30 is inserted into the positioning hole formed at the edge of each original film 32 with the BK plate as the light source side. Thereby, the positioning of each original film 32 can be performed easily and accurately.

Next, the operator cuts the photosensitive material 16 drawn out from the photosensitive material roll accommodating portion 14 into a predetermined length by the cutter 22, and makes it adhere to the original film 32 to close the upper lid 34.

On the other hand, when the power switch of the plate inspection making apparatus 10 is turned on, the controller 42 is activated to start the temperature control of the heat roller 86 of the heat developing section 81, and it is detected that the temperature is optimum for heat developing. The plate preparation preparation state is entered, and the control routine of FIG. 6 is started.

When the control routine is started, step 1
In step 02, the blower 40 is turned on, and in step 104, it is determined which of the filter selection buttons 62A, 62B, 62C and 62D has been pressed.

In step 104, if the original film 32 to be exposed is selected as the Y plate, the drive motor 52 is rotated in step 106 so that the interference filter A corresponding to the original film 32 to be exposed is arranged at a predetermined position. The angle is controlled and inserted into the optical path. If the original film 32 to be exposed is selected as the M plate, the original film 3 to be exposed
In step 106, the rotation angle of the drive motor 52 is controlled so that the interference filter B corresponding to the second filter is disposed at a predetermined position, and the interference filter B is inserted into the optical path. Original film 3 to be exposed
2 is selected as the C plate, the original film 32 to be exposed is
In step 106, the rotation angle of the drive motor 52 is controlled so that the interference filter C corresponding to the above is disposed at a predetermined position, and is inserted into the optical path.

In the case of the negative type, in addition to the interference filters A, B, and C described above, a filter selection button 62D is pressed as a BK (Sumi) plate original film, so that a transparent glass (or middle gray filter) is used. ) Insert 57.

As described above, since the interference filter 56 in the photosensitive wavelength region of the photosensitive material corresponding to the original film 32 is selected and inserted in the optical path, the photosensitive material 16 is exposed to each photosensitive film according to the type of the original film 32. It can be exposed to ultraviolet light in the wavelength range.

In this way, the first interference filter 56 corresponding to the first original film 32 to be exposed is selected (step 106).

In step 108, it is determined whether or not the exposure start button 63 has been pressed. When the exposure start button 63 is pressed, in step 112, the temperature T of the interference filter 56 inserted in the optical path is detected by the temperature sensor 58, and the temperature T of the interference filter 56 detected by the temperature sensor 58 is It is determined whether or not the predetermined value T0 is exceeded. If the temperature of the interference filter 56 exceeds the predetermined value, the process proceeds to step 116, the electrodeless light source 44 is not turned on, and the lamp 60 is blinked as a warning until the temperature of the interference filter 56 becomes equal to or lower than the predetermined value. Return to step 108. If the temperature of the interference filter 56 is equal to or lower than the predetermined value, the process proceeds to step 114. At step 114, the exposure amount Pi (corresponding to any one of Y = Y, M, C, and BK plates) corresponding to the type of original film 32 is read, and the routine proceeds to step 118. Step 1
At 18, the electrodeless light source 44 is turned on to start exposure.

Therefore, it is possible to automatically prevent exposure from being performed in a state where the filter characteristic of the interference filter 56 is changed by heating. It is possible to prevent deterioration of image quality. Also, the lamp 6
By blinking 0, the operator can
It can notify that the temperature of 6 has risen.

When the electrodeless light source 44 is turned on, the measurement of the exposure amount is started based on the output from the integrated photometer 68 in step 120, and the process proceeds to step 122.
In step 122, it is determined whether or not the exposure amount P has reached a predetermined exposure amount Pi. If the exposure amount P has reached the exposure amount Pi corresponding to the original film 32, the process proceeds to step 124, where the electrodeless light source 44 is turned off.

As described above, since the photosensitive material 16 is exposed with the exposure amount according to the type of the original film 32, even if the original film 32 is exchanged, the appropriate exposure amount according to the type of the original film 32 is irradiated. can do. Thus, the operator can perform the operation without changing the exposure amount depending on the type of the original film 32.

The blower 40 remains in the operating state during the exposure of each original film 32, and when the operator opens the upper lid 34, the photosensitive material 16 is attached to the upper lid 36. ing. Therefore, the operator does not need to align the photosensitive material 16 and can easily replace the original film 32. When the exchange of the original film 32 is completed and the upper cover 34 is closed, the process returns to step 102, and waits until the next filter is selected by the filter selection button 62, and then the exposure of the next original film 32 is started. You. In this way, the first original film 32
When the exposure is finished, the process returns to step 104, and the same exposure operation is performed four times in the case of the negative photosensitive material 16 and three times in the case of the positive photosensitive material 16.

On the other hand, when all the exposure of each original film 32 is completed and the operator presses the exposure stop button 65, it is judged in step 110 that the exposure work is completed, and the process proceeds to step 126 and the blower 40 is operated. The control routine is stopped, and this control routine ends.

After that, when the operator inserts the exposed photosensitive material 16 into the heat developing section 81 through the photosensitive material inserting hole 84A, the photosensitive material 16 inserted into the heat developing section 81 is
The sheet is conveyed while being in contact with the heat roller 86, is thermally developed, and is discharged to the tray 90 from the photosensitive material discharge hole 83B.

In this embodiment, the electrodeless light source 44 is used as the light source, and the ultraviolet light emitted from the electrodeless light source 44 is applied to the photosensitive material 16 through the interference filter 56. Therefore, the interference filter 56 transmits only the ultraviolet light in the ultraviolet photosensitive wavelength region that forms a predetermined dye image in one exposure, and does not transmit the ultraviolet light in the ultraviolet photosensitive wavelength region that forms another dye image. Therefore, it is possible to create a color proof with good color separation without causing color mixture. Since the high intensity ultraviolet light is emitted by using the electrodeless light source 44, the photosensitive material 16 is irradiated with the appropriate intensity ultraviolet light. Therefore, the exposure of the photosensitive material 16 can be completed in a short time without increasing the exposure time.

In this embodiment, when the temperature T of the interference filter 56 inserted on the optical path exceeds the predetermined value T0, the controller 42 causes the electrodeless light source 4 to operate.
4 is automatically prohibited and the lamp 60 is blinked, but instead of this, when the temperature T of the interference filter 56 inserted in the optical path exceeds a predetermined value T0, It is also possible to control 60 to perform only the blinking operation, and to blink the lamp 60 to warn the temperature rise of the interference filter 56 and stop the exposure work by the operator.
Further, in the present embodiment, the temperature sensor 58 is attached to each interference filter 56, but instead of this, a temperature sensor is arranged in the vicinity of the insertion position of the interference filter 56 on the optical path, and the ambient temperature of that portion is set. Interference filter 5
The temperature of 6 may be substituted.

[Second Embodiment] Next, a second embodiment to which the present invention is applied will be described.

In the first embodiment, the electrodeless light source 44 is used to irradiate the photosensitive material 16 with ultraviolet light by setting the wavelength range of the ultraviolet light with which the photosensitive material 16 is irradiated by the interference filter 56 to a predetermined wavelength range. I explained the example in the case of doing,
As a second embodiment, a light source (for example, a fluorescent tube) that emits a plurality of ultraviolet rays in different ultraviolet wavelength ranges is provided, and the plurality of light sources are turned on individually or simultaneously, so that the photosensitive material 16
The case of irradiating ultraviolet light to the ultraviolet light will be described. Since the second embodiment has substantially the same configuration as that of the first embodiment, the same parts are designated by the same reference numerals and detailed description thereof will be omitted.

As shown in FIG. 7, a light source box 98 for emitting ultraviolet light is arranged below the glass plate 28 in the casing 12.

The light source box 98 has three types of ultraviolet wavelength ranges (330 to 365 nm, 365 to 400 nm, 400 to 400 nm).
The fluorescent tubes 94A, 94B, and 94C that emit ultraviolet light each having an emission maximum in the range of 435 nm) are provided.
These three types of ultraviolet wavelength ranges are the photosensitive wavelength ranges (C = 400 to 435 nm, M =) of the photosensitive materials corresponding to C, M, and Y, respectively.
365-400 nm, Y = 330-365 nm). In this way, the ultraviolet light of the light source itself is changed to the photosensitive material 16
Since it corresponds to the photosensitive wavelength region of, the interference filter 56
It is not necessary to divide the ultraviolet light with which the photosensitive material 16 is irradiated by such a filter into a predetermined wavelength range.

Each of the fluorescent tubes 94 is connected to the control device 42 via a driver (not shown), and each of the fluorescent tubes 94A to 94A is controlled by a control signal from the control device 42.
ON / OFF of C and a shutter operation (not shown) provided in the slits 95A to 95C corresponding to the fluorescent tubes 94A to 94C are controlled. Light source box 98
Is arranged so as to be slidable on a stage 96 attached to the casing 12 by a belt, a chain, or the like, and can be moved by a driving means (not shown). This belt or chain is connected to a drive source such as a stepping motor, and is moved by a predetermined amount in the horizontal direction (direction of arrow a in FIG. 7) in response to a signal from the control device 42 so that it is evenly distributed over the entire surface of the photosensitive material 16. It can be irradiated. The light source box 98 is connected to the control device 42, and the position of the light source box 98 can be detected. When the ultraviolet light is sequentially emitted from the fluorescent tubes 94, the fluorescent tubes 94A to 94C in the light source box 98 are connected to each other. The emitted ultraviolet light is controlled so as to overlap a predetermined range of the photosensitive material 16 from the slits 95A to 95C. As a result, even if the photosensitive material 16 is illuminated by different fluorescent tubes 94A to 94C, the obtained image does not shift.

In the case of the negative type photosensitive material 16,
The Y, M, and C plate color separation originals are exposed using light from the fluorescent tubes 94A, 94B, and 94C, respectively, and the BK plate is exposed to the fluorescent tubes 94A, 94B, and 94C.
To light up and expose.

The operation of the second embodiment will be described below with reference to the control flow chart of FIG. First, the operator attaches the original film 32, for example, to the exposure unit 26 of the plate inspection device 10,
Set BK (Sumi) plate on Y plate. Next, the worker pulls the photosensitive material 1 out of the photosensitive material roll accommodating portion 14.
6 is cut into a predetermined length by the cutter 22, and is brought into close contact with the original film 32, and the upper lid 34 is closed.

When the power switch of the plate inspection device 10 is turned on, the control device 42 operates to start the temperature control of the heat roller 86 of the heat developing section 81, and when the temperature reaches the optimum temperature for the heat development, the plate inspection is prepared. The preparation state is entered, and the control routine of FIG. 10 is started.

When the control routine is started, step 1
In 02, the blower 40 is turned on, and in step 104, it is determined which one of the light source selection buttons 62A, 62B and 62C has been pressed. In this embodiment, since the interference filter 56 is not necessary, the filter selection button 62 can be used as a selection button for the fluorescent tube 94.

In step 104, if the original film 32 to be exposed is selected as the Y plate, the rotation angle of the drive motor is adjusted in step 106 so that the fluorescent tube 94A corresponding to the original film 32 to be exposed is arranged at a predetermined position. Is controlled, and the ultraviolet light emitted from the fluorescent tube 94A is slit 9
Irradiation is performed while scanning the photosensitive material 16 from 5A through the Y plate. If the original film 32 to be exposed is selected as the M plate, the rotation angle of the drive motor is controlled in step 106 so that the fluorescent tube 94B corresponding to the original film 32 to be exposed is arranged at a predetermined position, and the fluorescent tube 94B is controlled.
The ultraviolet light emitted from B is irradiated while scanning the photosensitive material 16 from the slit 95B through the M plate.
If the original film 32 to be exposed is selected as the C plate, the rotation angle of the drive motor is controlled in step 106 so that the fluorescent tube 94C corresponding to the original film 32 to be exposed is arranged at a predetermined position, and the fluorescent tube 94C is controlled. Ultraviolet light emitted from the photosensitive material 16 from the slit 95C through the C plate.
Irradiate while scanning.

In the case of the negative type photosensitive material 16,
In addition to exposing the original films 32 of Y plate, M plate, and C plate using the fluorescent tubes 94A, 94B, and 94C,
Fluorescent tube 94 using BK (Sumi) plate as original film 32
All of A, 94B, and 94C are turned on, and exposure is performed with ultraviolet light in the entire ultraviolet photosensitive wavelength range.

As described above, since the fluorescent tube 94 in the photosensitive wavelength region of the photosensitive material 16 corresponding to the original film 32 is selected, the photosensitive material 16 is exposed to each photosensitive material 16 according to the type of the original film 32. It can be exposed to ultraviolet light in the wavelength range.

In this way, the first fluorescent tube 94 corresponding to the first original film 32 to be exposed is selected (step 106).

In step 108, it is determined whether or not the exposure start button 63 has been pressed. When the exposure start button 63 is pressed, the process proceeds to step 150. Step 1
In 50, the fluorescent tube 9 corresponding to the type of the original film 32
Any of 4A, 94B, and 94C is turned on. In step 152, the shutter of the lighted fluorescent tube 94 is opened and the light source box 98 moves in the direction of arrow a in FIG. 7 to start scanning exposure.

In this case, the scanning is performed at a predetermined scanning speed so that the exposure amount is predetermined corresponding to each original film 32. In step 154, the detection means (for example, a micro switch) 97 detects whether or not the light source box 98 has reached a predetermined position opposite to the reference position. If the determination is affirmative, the light source box 98 is stopped and the shutter is released in step 156. Close the light source and turn it off. Note that step 15
8, the moving speed of the light source box 98 is controlled according to the exposure amount Pi. Light source box 98 in step 160
Is quickly returned to the reference position (the position shown in FIG. 7).

The blower 40 remains in the operating state during the exposure of each original film 32, and when the operator opens the upper lid 34, the photosensitive material 16 is attached to the upper lid 34. ing. Therefore, the operator does not need to align the photosensitive material 16 and can easily replace the original film 32. When the replacement of the original film 32 is completed and the upper lid 34 is closed, the process returns to step 102, waits for the next fluorescent tube 64 to be selected by the filter (fluorescent tube) selection button 62, and the next original film is returned. The exposure of 32 is started. In this way, when the exposure of the first original film 32 is completed, the process returns to step 104, and the same exposure operation is performed four times in the case of the negative photosensitive material 16 and in the case of the positive photosensitive material 16. It is performed three times in total.

On the other hand, when the exposure of each original film 32 has been completed and the operator has pressed the exposure stop button 65, it is determined in step 110 that the exposure operation has ended, and the process proceeds to step 126, where the blower 40 is operated. The control routine is stopped, and this control routine ends.

After that, when the worker inserts the exposed photosensitive material 16 into the heat developing section 81 through the photosensitive material inserting hole 83A, the photosensitive material 16 inserted into the heat developing section 81 is
The sheet is conveyed while being in contact with the heat roller 86, is thermally developed, and is discharged to the tray 90 from the photosensitive material discharge hole 83B.

In this embodiment, the photosensitive material 16 is exposed by using a plurality of fluorescent tubes 94 that emit light in the ultraviolet wavelength range corresponding to the spectral sensitivity distribution of the photosensitive material 16 as the light source. There is. Therefore, it is not necessary to divide the ultraviolet light using the filter so as to match the spectral sensitivity of the photosensitive material 16. Moreover, since the exposure is performed by scanning exposure, the exposure can be performed without using a complicated optical system. In this case, the original film 32 and the photosensitive material 16 may be moved by the moving means instead of moving the light source.

In the present embodiment, an example in which a plurality of light sources are arranged horizontally has been described, but a plurality of light sources may be arranged in a polygonal light source box and rotated.

[Third Embodiment] Next, a third embodiment of the present invention will be described.

As Example 3, a light source for emitting ultraviolet light is provided above the glass plate 28 and the Fresnel lens 29,
Interference filter 56 that transmits ultraviolet light in a predetermined ultraviolet wavelength range
A case of irradiating the photosensitive material 16 with ultraviolet light through the light will be described. Since the members used in the third embodiment have substantially the same configuration as in the first embodiment, the same parts are designated by the same reference numerals and detailed description thereof will be omitted.

As shown in FIG. 11, in the third embodiment, the plate inspection making apparatus 10 includes a surface plate 13. On the surface plate 13,
Although illustration is omitted, the photosensitive material roll accommodating portion 14 and the heat developing portion 81 similar to those in the first embodiment are provided. This surface plate 1
A pair of positioning pins 30 are provided upright on the front side of 3, and the positioning pins 30 are color-separated into positioning holes of the photosensitive material 16 and Y plate, M plate, C plate and BK (smear) plate. By inserting the original film 32 into the positioning hole formed at the edge of each original film 32, the original film 32 can be positioned easily and accurately.

One of the hinges 35 is attached to the rear surface of the surface plate 13, and the other of the hinges 35 is attached with an upper lid portion 99 which is swingable about the hinges 35. The upper lid 99 covers the photosensitive material installation portion 17 during exposure. This top cover 99
Is composed of a glass plate 28 and a Fresnel lens 29. The Fresnel lens 29 is disposed on the glass plate 28 so that the Fresnel lens 29 is in close contact with the glass plate 28. Is being irradiated.

An elastic spring 33 is attached to the hinge 35 so that the elastic spring 33 applies an urging force to the elastic spring 33 when the upper cover 99 swings to cover the photosensitive material installation portion 17. Has become. As a result, the glass plate 28 and the original film 32 are in close contact with each other due to the urging force and the weight of the glass plate 28 and the Fresnel lens 29 during exposure, and the urging force is released during the replacement of the original film 32 after the exposure to easily swing. It has become possible.

Further, the surface plate 13 is provided with an elastic member (packing) at the peripheral edge of the glass plate 28, and when the upper lid 99 swings to cover the photosensitive material installation portion 17, The peripheral edge of the glass plate 28 is in close contact with the elastic member. Then, the airtightness of the space between the glass plate 28 and the surface plate 13 is increased by sucking the groove formed between the original film 32 and the photosensitive material 16 and the elastic member with a suction pump or the like during the exposure. Therefore, the air layer between the photosensitive material 16 and the original film 32 and the air layer between the glass plate 28 and the original film 32 are eliminated, and the respective layers are brought into close contact with each other.

FIG. 11 shows an example in which the negative photosensitive material 16 is exposed. The photosensitive material 16 is arranged on the surface plate 13, and the Y plate of the original film 32 is placed on the photosensitive material 16. M
Photosensitive material 16 by sequentially exchanging images on the plate, C plate and BK plate
Bake a total of 4 times. When the positive type photosensitive material 16 is exposed, the Y plate, the M plate and the C plate are placed on the side close to the photosensitive material 16 and the BK plate is overlaid thereon and baked three times.

Further, above the Fresnel lens 29, an electrodeless light source 44 for emitting ultraviolet light is held by a column (not shown). The interference filter unit 4 is provided near the electrodeless light source 44 between the electrodeless light source 44 and the Fresnel lens 29.
9 are arranged. This interference filter unit 49
Is provided with three interference filters 56A, 56B and 56C and a transparent glass 57 for exposing the original film 32 corresponding to each of the Y plate, the M plate, the C plate, and the BK (Sumi) plate.

Between the interference filter 56 and the light source 44,
A heat insulating filter 45 is provided. Thereby, the temperature rise of the interference filter 56 is prevented. In addition, the electrodeless light source 4 of the interference filter 56 along the irradiation optical path
A louver 64 is arranged on the fourth side, and the electrodeless light source 4
Only the direct light emitted from the light emitting point 48 of No. 4 and the light reflected by the reflection plate 46 and entering from the substantially same direction as the direct light can pass through the louver 64.

Thus, the electrodeless light source 44 is connected to the glass plate 2
By arranging the light source 8 above 8, the position of the light source 44 can be freely moved up and down, and the irradiation area can be enlarged and reduced in accordance with the size of the photosensitive material 16 for exposure. Therefore, the original film 32 and the photosensitive material 1
Color proofs can be created without being limited to the size of 6.

[Embodiment 4] FIGS. 12 to 16 show a plate inspection making apparatus 200 according to Embodiment 4 of the present invention. In addition, in Example 4, the above-mentioned Examples 1, 2 and 3
The same parts applied to the above are given the same reference numerals and the description thereof is omitted.

As shown in FIG. 12, the plate inspection creation device 2
The casing 202 of 00 is a substantially rectangular box body. As shown in FIG. 13, in the casing 202 of the plate inspection creation apparatus 200, a platen portion 204 is provided substantially in the center, and the magazine loading portion 206 is adjacent to the platen portion 204.
(Left side of FIG. 13). Also, the surface plate section 2
No. 04 has a thermal developing section 81 on the side opposite to the magazine loading section 206.
Is provided.

The magazine loading section 206 is loaded with a magazine 208 containing the long photosensitive material 16 in a roll form. The photosensitive material 16 has its tip pulled out from the magazine 208 and is conveyed in a substantially horizontal direction to be loaded in the magazine loading section 206.
Passing through a cutter 210 provided adjacent to the surface plate 2
04. The cutter 210 cuts the photosensitive material 16 pulled out by a predetermined length.

The photosensitive material 16 sent to the platen section 204 is
The image recorded on the original film 32 is printed by the exposure unit 214 placed on the surface plate 212 and provided above the surface plate unit 204. Image-printed photosensitive material 1
6 is a heat developing section 81 provided on the downstream side of the surface plate section 204.
Sent to

In the heat developing section 81, while the exposed photosensitive material 16 is wound around the heat roller 86 and conveyed,
The photosensitive material 16 is heated and developed. The photosensitive material 16 developed in the heat developing section 81 is discharged through the discharge port 202.
Emitted from A.

The surface plate section 214 includes a surface plate 212 supported on the intermediate base of the plate inspection device 200 and the surface plate 212.
And a drive unit 216 for vertically moving the.

As shown in FIG. 16, the surface plate 212 has a hollow inside, and the photosensitive material 16 is placed on the upper surface thereof. A plurality of holes 218 communicating with the inside are formed on the upper surface of the surface plate 212, and a groove 220 is provided in the vicinity of the peripheral edge of the upper surface of the surface plate 212. The hollow portion of the surface plate 212 and the groove 220 are tubes 218A and 220A, respectively.
The blower 40 is communicated with the blower 40, and the negative pressure is individually supplied from the blower 40.

Photosensitive material 16 sent to surface plate section 204
Is adsorbed and held on the upper surface of the surface plate 212 by the negative pressure from the blower 40. Further, in the groove 220, the photosensitive material 1
A larger-sized overlay sheet 240 (described later) and the original film 32 are adsorbed.

As shown in FIG. 13 and FIG. 14, the drive unit 216 provided below the surface plate 212 includes a surface plate 212.
In the horizontal state, the lower limit position for placing the lower photosensitive material 16 or discharging it to the thermal developing section 81 (shown by the solid line in FIG. 14), and the upper limit position facing the higher exposing section 214 for performing the exposure operation (see FIG. 14). (Indicated by a chain double-dashed line), and an intermediate position which stands by when the original film 32 is exchanged between the upper limit position and the lower limit position.

On the lower surface of the surface plate 212, a cylindrical rack 2 is provided.
One end in the axial direction of 22 is connected. The rack 222 has teeth formed along the longitudinal direction on the outer peripheral surface, and the other end projects below the intermediate base 202B. Rack 2
A gear box 224 having a motor and a pinion gear rotated by the motor is inserted through an intermediate portion of the rack 22, and the tooth portion of the rack 222 and the pinion gear are meshed with each other (not shown). The gear box 224 is fixed to the intermediate base 202B, and the gear box 224 is actuated by driving a motor (not shown), the pinion gear and the teeth of the rack 222 mesh with each other, and the surface plate 212 is moved vertically in the horizontal direction. It

A sensor box 226 is provided below the gear box 224. An intermediate portion of the rack 222 is inserted into the sensor box 226, and any one of a plurality of predetermined positions of the intermediate portion of the rack 222 accompanying the movement of the surface plate 212 to the upper limit position, the intermediate position, and the lower limit position. Is detected and the position of the surface plate 212 is measured. Therefore, the surface plate 212 is moved to the lower limit position, the upper limit position, and the intermediate position while the position is accurately detected by the sensor box 226.

On the other hand, as shown in FIGS. 12 and 13, above the heat developing section 81, the casing 202 is lowered and the film loading section 232 is arranged. The film loading unit 232 uses the heat insulating plate 234 to heat the thermal developing unit 8
1, and a rectangular hole 236 is formed on the upper surface. The rectangular hole 236 is opened and closed by a lid 238. The lid 238 is attached to the casing 202 via a hinge (not shown), and is rotated and opened and closed from the front side to the back side in FIG. The lid 238 is opened when the original film 32 is loaded or unloaded from the rectangular hole 236 to the film loading section 232.

The film loading section 232 is provided with a frame-shaped support frame 242 to which the overlay sheet 240 on which the original film 32 is placed is attached, and reciprocates between the film loading section 232 and the exposure section 214. It is supposed to be movable. The opening of the support frame 242 is larger than the original film 32, and a positioning pin 30 for positioning the original film 32 on the support frame 242 is provided upright on one side (partially shown in FIG. 12).

The overlay sheet 240 provided on the support frame 242 is sized so as to cover the opening of the support frame 242, and is moved between the upper surface and the lower surface of the support frame 242 by a driving means (not shown). Therefore, the overlay sheet 240 covers the lower surface of the support frame 242 and supports the entire surface of the original film 32 loaded in the support frame 424 when the support frame 242 is moved to the film loading section 232. There is. Further, when the support frame 242 is moved to the surface plate section 204, it moves to the upper surface of the support frame 242 and covers the upper surface of the original film 32.

Here, when the original film 32 is loaded, the support frame 242 is placed in the film loading section 232, and is placed on the overlay sheet 240 that has been moved to the lower part of the support frame 242, and the positioning pin 30 is attached to the overlay sheet 240. Positioned. In this state, the support frame 242 is moved above the surface plate portion 204.

Below the support frame 242 which has been moved above the surface plate section 204, the surface plate 2 which has been raised to an intermediate position.
12 are located. In this state, overlay sheet 24
By moving 0 above the original film 32,
The photosensitive material 16, the original film 32, and the overlay sheet 240 are arranged in this order on the surface plate 212. After that, the surface plate 212 is raised to the upper limit exposure position.

In the case of exposing the negative photosensitive material 16 in this embodiment, the photosensitive material is prepared by sequentially exchanging the images of the Y plate, M plate, C plate and BK plate of the original film 32 on the supporting frame 242. Bake 16 times 4 times. Positive photosensitive material 1
6 is exposed on the support frame 242, the Y plate, the M
When the plate and C plate document films are loaded, the BK plate document films are stacked on top of these document films and baked three times in total. It should be noted that each of the original films 32 is provided with an identification symbol that can identify which image of the Y plate, the M plate, the C plate, and the BK image, so that the desired original film 32 can be easily selected. It has become.

As shown in FIG. 14, the squeeze roller 2 is provided in the exposure section 214 disposed above the surface plate section 204.
43 are provided. The squeeze roller 243 is configured to reciprocate along the width direction of the photosensitive material 16 in the direction of arrow B in FIG. Further, the squeeze roller 243 is adapted to rotate and move on the surface plate 212 by its own weight when moving in the direction of the arrow B, whereby the photosensitive material 16, the original film 32 and the overlay sheet on the surface plate 212 are moved. 240 are squeezed and brought into close contact with each other.

Further, as shown in FIGS. 13 and 14, the exposure section 214 is provided with a light source section 244. As shown in FIG. 15, the light source unit 244 includes a fluorescent tube 24 serving as a light source that emits ultraviolet light inside the casing 246.
No. 8 is provided and is hung over a pair of fluorescent tube sockets 248A fixed to the lower end surface of the casing 246. A slit hole 250 is formed along the longitudinal direction of the fluorescent tube 248 on the surface (lower end surface) of the casing 246 facing the surface plate 212.
An opening / closing shutter 252 is provided below the casing 246 so as to correspond to the slit hole 250. On the upper part of the slit hole 250, a SELFOC lens 254 serving as an optical unit is pressure-fixed between the brackets 256 with a resin plate 258. The SELFOC lens 254 is designed to pass the ultraviolet light emitted from the fluorescent tube 248 as parallel light along a direction perpendicular to the axial direction of the fluorescent tube 458 (vertical direction on the paper surface of FIG. 15).

The opening / closing shutter 252 is the solenoid 260.
Connected to the drive shaft 260A of the solenoid 260
Is driven to move the slit hole 250 in the width direction (direction of arrow B in FIG. 15). Further, the opening / closing shutter 252 is provided with a compression coil spring 262, and the solenoid 26
When the driving of 0 is stopped, the opening / closing shutter 252 is moved in the direction opposite to the arrow B direction in FIG. 15 by the urging force of the compression coil spring 262, and the slit hole 250 is opened / closed.
It is designed to be opened and closed by 2.

A stepping motor 264 is attached to one side surface of the casing 246. The stepping motor 264 is provided with drive shafts 266 penetrating both side surfaces of the casing 246, and a gear 268 is provided outside each side surface. Is installed. Further, below the casing 246, a filter support plate 272 having a rack 270 facing the gear 268 is disposed, and each gear 268 faces and meshes with the teeth of the rack 270. Therefore, by driving the stepping motor 264, the gear 268 and the rack 270 are engaged with each other, and the filter support plate 272.
Are relatively moved along the width direction of the slit hole 250.

The filter support plate 272 is provided with a filter sheet 276 having a filter 274 attached to each of the four slit holes 272A. Both ends of the filter sheet 276 in the longitudinal direction are provided on the filter support plate 2
It is fixed by a plate 278 attached to the upper surface of 72.

In this embodiment, the filter 274 has four colors arranged in a strip shape along the slit holes 272A, and is provided with Y (yellow), M (magenta), C (cyan) and a transparent filter. There is. These filters 274 are driven by the stepping motor 264,
One of the colors faces the slit hole 250 of the casing 246.

The stepping motor 264 is driven according to the original film 32 loaded on the support frame 242, and the filter 274 corresponding to the original film 32 is selected. That is, the original film 32
Is a Y (yellow) plate, the Y filter is opposed to the slit hole 250 of the casing 246, and if it is an M (magenta) plate, the M filter is opposed to the slit hole 250 and is a C (cyan) plate. If there is, the C filter is controlled so as to face the slit hole 250.

As shown in FIG. 12, a filter selection button 62, an exposure start button 63, and an exposure stop button 65 are provided on the upper surface of the casing 202. The filter selection button 62 corresponds to the original film 32. The exposure filter is selected, the original film 32 is loaded into the film loading section 232, and then the exposure start button 63 is pressed, whereby the support frame 242 is moved above the surface plate 212 and exposure is started. Also, after the exposure of a predetermined number of times is completed, the exposure end button 65
By pressing, the photosensitive material 16 on the surface plate 212 is sent to the heat developing section 81. Along with these, a sensitive material set switch 280 for sending the photosensitive material 16 to the surface plate 212 is provided on the upper surface of the casing 202.
By pressing the sensitive material setting switch 280, the photosensitive material 16 is pulled out from the magazine 208 and sucked and held on the surface plate 212.

A reservoir section is provided between the surface plate section 204 and the heat developing section 81, and the difference between the transfer speed of the photosensitive material 16 discharged from the surface plate section 204 and the transfer speed in the heat developing section 81. Are absorbed by the reservoir portion.

The operation of this embodiment will be described below with reference to the flow chart shown in FIG.

When a power switch (not shown) of the plate inspection device 200 is turned on, the heat roller 86 of the heat developing section 81 is turned on.
Becomes a temperature at which the photosensitive material 16 can be developed, and the blower 40 becomes a state in which a negative pressure can be supplied to the surface plate 212.

First, at step 170, when the photosensitive material setting button 280 is pressed, the photosensitive material 16 is pulled out from the magazine 208, cut into a predetermined length by the cutter 210, and then sent to the surface plate portion 204. Photosensitive material 16
When is transferred to the surface plate section 204 and placed on the surface plate 212, a negative pressure is supplied from the blower 40 to the hollow portion of the surface plate 212, and the photosensitive material 16 is adsorbed and held on the surface plate 212. Thereafter, the surface plate 212 is raised to the intermediate standby position (step 1
72).

At the next step 174, the filter selection button 62 is used to select the Y, M, C or BK (transparent) filter 274 according to the original film 32. As a result, the stepping motor 264 is driven and the filter 27 selected in the slit hole 250 of the light source unit 244.
4 are opposed. At the same time, the exposure amount Pi corresponding to the filter 274 (i corresponds to any of Y, M, C, and BK plates) is read (step 176).

Thereafter, the operator opens the lid 238 of the film loading section 323 and loads the original film 32 (step 178). The original film 32 has a support frame 242.
Is placed on the overlay sheet 240 that covers the lower surface of the support sheet, inserted into the positioning pin 30, positioned with respect to the support frame 242, and loaded.

In step 178, when the exposure start button 63 is pressed, the original film 32 is set on the surface plate 212. When the support frame 242 moves above the surface plate 204 and the original film 32 is placed at the exposure position, the overlay sheet 240 is moved above the original film 32 so as to cover the original film 32. As a result, the photosensitive material 16, the original film 32, and the overlay sheet 240 are arranged in this order on the surface plate 212, and a negative pressure is supplied from the blower 40 to the groove 220 of the surface plate 212, so that the original film 32 and the overlay sheet 240. Also surface plate 21
It is adsorbed on 2. After that, the surface plate 212 moves up to the upper limit exposure position.

At the next step 184, the squeeze roller 243 is driven to bring the overlay sheet 240, the original film 32, and the photosensitive material 16 into close contact with each other. At this time, the light source unit 244 is moved along with the movement of the squeeze roller 243.

Exposure is performed in steps 150 to 158. In the exposure, after the fluorescent tube 248 of the light source unit 244 is turned on, the solenoid 260 is driven and the opening / closing shutter 252 opens the slit hole 250 and the light source unit 2
The movement of 44 starts. When the light source unit 244 moves to a predetermined position, the opening / closing shutter 252 is closed and the exposure is completed. At this time, the moving speed of the light source unit 244 is set to the filter 2
The exposure state of the photosensitive material 16 is controlled according to the exposure amount Pi of 74.

The ultraviolet light emitted from the fluorescent tube 248 of the light source section 244 is in the photosensitive wavelength region (C = 330) of the photosensitive material 16.
~ 365 nm, M = 365-400 nm, Y = 330-
The wavelength is 365 nm). The ultraviolet light emitted by the fluorescent tube 248 is made parallel by the SELFOC lens 254 and is uniformly transmitted along the longitudinal direction of the fluorescent tube 248. This parallel ultraviolet light is transmitted through the slit hole 250.
Through the filter 2 facing the slit hole 250
74 is irradiated. The filter 274 is the original film 3
The original film 3 of the Y plate because they are opposed to each other according to 2.
When No. 2 is loaded, the Y (yellow) filter is opposed, only the ultraviolet light having a wavelength range of 400 to 435 nm is transmitted, and the photosensitive material 16 is irradiated with the ultraviolet light. Fluorescent tube 24
8, since the slit holes 250 and the filter 274 are provided along the longitudinal direction of the photosensitive material 16, the photosensitive material 16 is collectively exposed in the longitudinal direction by the ultraviolet light emitted from the fluorescent tube 248. By moving the light source section 244 along the width direction of the photosensitive material 16, exposure scanning is performed along the width direction of the photosensitive material 16.

Since the color corresponding to the original film 32 is moved and the filter 274 faces the slit hole 250, the filter 274 does not always receive heat from the light source. Further, since the fluorescent tube 248, which generates less heat than the point light source, is used, the filter 274 is not affected by the heat of the light source.

When the exposure is completed, in step 186,
The supply of the negative pressure to the groove 220 of the surface plate 212 by the blower 40 is released, and the suction of the original film 32 and the overlay sheet 240 is released. Further, the surface plate 212 is lowered to the intermediate position by the drive of the drive unit 216.

After that, the overlay sheet 240 is moved below the original film 32, and the overlay sheet 24 is moved.
0 supports the original film 32, and the support frame 242 moves to the film loading section 232.

In the plate inspection preparation apparatus 200, the original film 3
2 is exchanged and the photosensitive material 16 is overlapped and exposed a predetermined number of times. When the exposure of the photosensitive material 16 by the final original film 32 is completed and the exposure end button 65 is pressed (step 188), the surface plate 212 is lowered to the lower limit position and the supply of the negative pressure by the blower 40 is released. To do. When the adsorption of the photosensitive material 16 onto the surface plate 212 is released, the photosensitive material 16
The image is sent to the heat developing section 81 and subjected to heat development (step 19).
0, 192).

In this embodiment, one fluorescent tube 248 covers the ultraviolet light sensitive area of the photosensitive material 16,
The light source unit 244 may include a plurality of fluorescent tubes 248. In this case, each fluorescent tube 248 may cover a different ultraviolet light-sensitive area, and in this case, the fluorescent tube 248 is moved to face the slit hole 250 so that the photosensitive material 16 is provided with a predetermined area. It is possible to irradiate ultraviolet light in the wavelength region of in parallel.

In the present embodiment, the light source section 244 is moved to print the image recorded on the original film 32 on the photosensitive material 16, but the original film 3 is not moved without moving the light source section 244.
2 and the photosensitive material 16 may be moved.

The light source section may be formed by combining a plurality of light sources or a plurality of light sources and a filter. For example, as shown in FIG. 18A, a plurality of fluorescent tubes 248 (Y), (M), (C), and (BK) are provided, each corresponding to the photosensitive wavelength range of the photosensitive material 16 (BK Is used for the original document film 32 of Sumi version). When selecting a predetermined ultraviolet light, these fluorescent tubes 248 (Y),
You may rotate (M), (C), (BK) in the arrow C direction. In this case, the filter 274 is unnecessary.

Further, as shown in FIG. 18B, a fluorescent tube 248 which emits ultraviolet light in almost the entire region is used as a light source, for example.
(BK), a fluorescent tube 248 (Y, M) for exposing the photosensitive material 16 through the original plates 32 of Y and M plates,
And a fluorescent tube 248 (C) for exposing the photosensitive material 16 through the C plate original film 32, and BK (Sumi)
A transparent filter 248 (BK) corresponding to the plate, a filter 274 (Y) corresponding to the Y plate, and a filter 274 (M) corresponding to the M plate are provided. When exposing the photosensitive material 16, the fluorescent tube 248 and the filter 274 may be driven in the direction of arrow E to extract the ultraviolet light in a predetermined photosensitive wavelength range. When the C plate original film 32 is exposed, the fluorescent tube 248 (C) and the filter 274 (B
K) causes exposure.

In the light source section shown in FIGS. 18A and 18B, when exposing the positive photosensitive material 16, the fluorescent tube 248 (BK) is unnecessary.

Further, in the present embodiment, the SELFOC lens 254 is applied as the optical means. However, the present invention is not limited to this, and it is also possible to form only the slits along the longitudinal direction of the fluorescent tube 248, and the grid or Even if a louver or the like is arranged, the present invention can be applied, but more preferably, it is provided so as to irradiate the photosensitive material 16 with ultraviolet rays parallel to each other. Irradiation is perpendicular to the photosensitive surface of the material 16.

[0147]

As described above, according to the present invention, it is possible to efficiently irradiate the photosensitive material with ultraviolet light in each photosensitive wavelength region which forms a plurality of dye images of the ultraviolet photosensitive photosensitive material, and An excellent effect that an image with good separation can be obtained is obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a plate inspection making apparatus according to a first embodiment of the present invention as seen obliquely from the front.

FIG. 2 is a side sectional view showing an upper lid of the plate inspection making apparatus according to the first and second embodiments of the present invention.

FIG. 3 is a schematic cross-sectional view showing an exposure unit of the plate inspection making apparatus according to the first embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a louver used in the plate inspection device of the embodiment of the present invention.

FIG. 5 is a control block diagram of the plate inspection creation apparatus according to the first embodiment of the present invention.

FIG. 6 is a control flowchart of the plate inspection creation apparatus according to the first embodiment of the present invention.

FIG. 7 is a schematic cross-sectional view showing an exposure unit of a plate inspection making apparatus according to a second embodiment of the present invention.

FIG. 8 is a schematic cross-sectional view showing the vicinity of one boundary surface of the interference filter when ultraviolet light is emitted from a point light source.

FIG. 9 is a schematic cross-sectional view showing the vicinity of one boundary surface of the interference filter when collimated ultraviolet light is emitted.

FIG. 10 is a control flowchart of the plate inspection creation apparatus according to the second embodiment of the present invention.

FIG. 11 is a schematic cross-sectional view showing an exposure section of a plate inspection making apparatus according to a third embodiment of the present invention.

FIG. 12 is a perspective view showing a plate inspection making apparatus according to Embodiment 4 of the present invention.

FIG. 13 is a schematic configuration diagram of the plate inspection creation apparatus according to the fourth embodiment as viewed from the front.

FIG. 14 is a schematic configuration diagram of a plate inspection creation apparatus according to a fourth embodiment as viewed from the side.

FIG. 15 is a perspective view showing a light source unit according to a fourth embodiment.

16 is a fragmentary cross-sectional view taken along the line 16-16 of FIG.

FIG. 17 is a flowchart illustrating control of the plate inspection creating apparatus according to the fourth embodiment.

18A and 18B are cross-sectional views of a main part showing a modified example of the light source.

[Explanation of symbols]

 10, 200 Plate inspection device 16 Photosensitive material (ultraviolet photosensitive material) 42 Control device 44 Electrode-free light source (light source) 45 Heat insulating filter 52 Drive motor 56 Interference filter (filter) 58 Temperature sensor 62 Filter selection button 68 Integrated photometer 94 248 fluorescent tube (light source) 254 selfoc lens (optical means) 274 filter (ultraviolet light selecting means)

Claims (7)

(57) [Claims] 1. A light source for irradiating ultraviolet light to an ultraviolet light-sensitive photosensitive material which forms a dye image by irradiating and heating light in the ultraviolet wavelength range, and the ultraviolet light from the light source is used to generate an image original. A plate inspection device that creates a plate inspection by irradiating the photosensitive material via an electrodeless light source as the light source and can be inserted into the optical path between the light source and the photosensitive material and At least three filters that transmit ultraviolet light in different ultraviolet wavelength regions corresponding to at least three photosensitive wavelength regions are provided, and at least one heat insulating filter is provided between the filter and the light source, and the filters are sequentially arranged in the optical path. A plate inspection device, which is inserted and exposes the photosensitive material with ultraviolet light in each of the ultraviolet wavelength ranges. 2. The plate inspection creation apparatus according to claim 1, wherein the filter is an interference filter. 3. A light source for irradiating ultraviolet light to an ultraviolet light-sensitive photosensitive material which forms a dye image by irradiating and heating light in the ultraviolet wavelength range, and the ultraviolet light from the light source is used to generate an image original. A plate inspection device for irradiating the photosensitive material through the plate to prepare an inspection plate, which emits ultraviolet light in different ultraviolet wavelength ranges corresponding to at least three photosensitive wavelength ranges of the photosensitive material as the light source. Using two light sources,
A plate inspection making apparatus characterized in that the plurality of light sources are independently turned on or simultaneously turned on to expose the photosensitive material. 4. A plate inspection making apparatus for making an inspection plate by irradiating ultraviolet light through an image original to an ultraviolet light-sensitive photosensitive material which forms a dye image by irradiating and heating light in the ultraviolet wavelength range. A linear light source for irradiating the ultraviolet light-sensitive material with ultraviolet light, a moving means for relatively moving the ultraviolet light-sensitive material and the image original and the light source, ultraviolet light from the light source A plate inspection making apparatus comprising: an optical unit that makes the light parallel to each other; and an ultraviolet light selecting unit that selects the ultraviolet light according to the image original from the ultraviolet light of the light source. 5. A filter corresponding to the image original is provided between the light source and the ultraviolet photosensitive material as the ultraviolet light selecting means, and the image original is converted by the filter from the ultraviolet light passing through the optical means. 5. The plate inspection device according to claim 4, wherein the corresponding ultraviolet light is selected. 6. The plate inspection creation apparatus according to claim 1, wherein the light source is located below the image original. 7. The plate inspection making apparatus according to claim 1, wherein the light source is located above the image original.