JPH0442845Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention involves overlapping a photosensitive resin film and an image-receiving paper and applying pressure to print and print an exposed image on the photosensitive microcapsule layer of the film onto the image-receiving paper. The present invention relates to a heating device for a compression developing machine that forms a developer layer on a developer layer.

[Conventional technology and its problems]

As shown in FIG. 6, the pressure developing machine sets a slide S taken out from a slide magazine 11 into a slide holder 12, irradiates the slide S with light from a lamp 13, and transfers a positive image of the slide S to a lens 14. The photosensitive microcapsule layer (not shown) of the film F fed from the supply roller 17 through the reflecting mirrors 15 and 16 is exposed by printing.

Further, the developer layer (not shown) of the image-receiving paper P fed out from the magazine 18 is superimposed on the photosensitive surface of the exposed film F and sent to the developing section 19. The microcapsules in the photosensitive microcapsule layer of the film F are destroyed by applying pressure with the rollers 20 and 20', and the reactant stored inside the capsules is reacted with the developer layer of the image receiving paper P to develop color in the developer layer. Then, an image printed and exposed on the film F is formed on the image-receiving paper P.

As mentioned above, the pressure developing machine forms an image on the image-receiving paper P by the reaction between the reactant encapsulated in microcapsules and the developer layer of the image-receiving paper P, but the image-receiving paper P after development is free from the reaction. is incomplete,
It's not shiny yet.

For this reason, the image-receiving paper P needs to be heat-treated after the development process to accelerate the reaction and at the same time be polished.

By the way, since the conventional structure is such that the image-receiving paper is fed into a drying box whose interior is maintained at a constant temperature, it takes time to accelerate the reaction and polish the image-receiving paper.

Therefore, the object of this invention is to provide a heating device which can eliminate the above-mentioned disadvantages and efficiently heat-process image-receiving paper in a very short period of time.

[Means for solving problems]

In order to achieve the above object, this invention provides a nozzle body and a duct through which compressed air is supplied on the transport path of the image-receiving paper that has been subjected to development processing through contact with a reactant layer. A heater for heating the nozzle body is attached to the nozzle body, and a hot air outlet capable of blowing hot air over the entire width direction of the image receiving paper is formed on the surface facing the image receiving paper, and a hot air outlet is also provided on the nozzle body. The structure includes a hot air pool that is long in the width direction of the image receiving paper and communicates with the duct, and a passage that communicates the hot air pool with the duct.

[Effect]

With the above configuration, when the nozzle body is heated by the heat generated by the heater and compressed air is circulated from the duct to the passage of the nozzle body, the compressed air becomes hot air through heat exchange through contact with the nozzle body, and the hot air flows into the hot air pool and flows out from the hot air outlet. At this time, since the hot air outlet faces the image receiving paper, the hot air collides with the image receiving paper,
The hot air can accelerate the reaction of the image-receiving paper and at the same time polish it.

〔Example〕

Embodiments of this invention will be described below with reference to FIGS. 1 to 5.

As shown in FIG. 1, a support member 1 that supports the image-receiving paper P that has been subjected to the development process is disposed in a transport path, and a metal nozzle body 2 is disposed above the support member 1. is provided.

Further, a duct 3 is attached to the upper part of the nozzle body 2, and compressed air is supplied into the duct 3 by driving a compressor 4.

The nozzle body 2 and the duct 3 have a length spanning the entire width direction of the image receiving paper P.

A heater 5 for heating the nozzle body 2 is attached to the nozzle body 2 described above. In the illustrated embodiment, as shown in FIG. 2, a plurality of heater insertion holes 6 are formed in the nozzle body 2, and a rod-shaped heater 5 is inserted into each heater insertion hole 6. 2 may be covered with a surface heater.

Further, as shown in FIGS. 2 and 3, the nozzle body 2 has a hot air outlet 7 on the surface facing the image receiving paper P that can blow hot air over the entire width direction of the image receiving paper P. It is provided.

In the case of FIG. 3, the hot air outlet 7 is a long slit in the width direction of the image-receiving paper P, but the shape of the hot air outlet 7 is not limited to this. For example, it may be a small hole as shown in FIG. It may be hot. In this case, the small holes are arranged in the width direction of the image receiving paper P at required intervals.

Further, the nozzle body 2 is formed with a hot air pool 8 that is long in the width direction of the image receiving paper P, and a passage 9 that guides the compressed air from the duct 3 to the hot air pool 8.
The hot air pool 8 communicates with the hot air outlet 7.

Reference numeral 10 denotes a detector that detects the temperature of the nozzle body 2, and the operation of the heater 5 is controlled by the detector, so that the temperature of the nozzle body 2 is maintained at a predetermined temperature.

Although not shown in the drawings, the support member 1, nozzle body 2, and duct 3 are covered with a box having a paper entrance and exit.

The heating device shown in the example has the above structure,
When heating the image-receiving paper P after the development process, the nozzle body 2 is heated and maintained at a constant temperature by the heat generated by the heater 5, and compressed air is supplied into the duct 3 in this state.

In this case, compressed air is supplied to the duct 3 only when the image receiving paper P is heated.

Now, when compressed air is supplied to the duct 3 while the nozzle body 2 is maintained at a constant temperature, this compressed air flows through the passage 9, so that the nozzle body 2
The hot air exchanges heat with the hot air and flows into the hot air pool 8. Further, the hot air in the hot air pool 8 is ejected from the hot air outlet 7 toward the image receiving paper P moving below the hot air outlet 7, and the reaction of the image receiving paper P is promoted and the image receiving paper P is polished at the same time.

In the heat treatment as described above, the compressed air flowing through the passage 9 passes through the hot air pool 8 in a heat-exchanged state.
Therefore, the temperature distribution and the flow velocity of the hot air flowing out from the outlet 7 can be kept constant. Therefore, the entire image receiving paper P can be heated uniformly.

Note that the compressed air forced into the duct 3 becomes hot air through heat exchange with the nozzle body 2;
It is preferable to bend the sheet in a zigzag manner as shown in FIG. 2 to increase the contact area with the compressed air.

〔effect〕

As described above, this invention allows the hot air flowing out from the hot air outlet of the nozzle body to collide with the image-receiving paper, so that the image-receiving paper can be efficiently processed to promote reaction in a very short time, and at the same time Can be polished.

In addition, since the hot air formed by heat exchange in the passage of the nozzle body is made to flow into the hot air pool formed in the nozzle body, the temperature distribution and flow rate of the hot air flowing out from the hot air outlet can be made uniform. This makes it possible to uniformly promote the reaction and polish the entire image-receiving paper at the same time.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the heating device according to the invention, FIG. 2 is a longitudinal sectional side view of the same, and FIG.
FIG. 4 is a longitudinal sectional side view showing another embodiment of the nozzle body, FIG. 5 is a bottom view of the same, and FIG. 6 is a schematic diagram of the pressure developing machine. 2... Nozzle body, 3... Duct, 5... Heater, 7... Hot air outlet, 8... Hot air pool, 9... Passage.

Claims (1)

[Scope of utility model registration request] A nozzle body and a duct through which compressed air is supplied are provided on the transport path of the image-receiving paper which has been subjected to pressure development by overlapping with a photosensitive resin film,
A heater for heating the nozzle body is attached to the nozzle body, and a hot air outlet capable of blowing hot air across the entire width direction of the image receiving paper is formed on the surface facing the image receiving paper, and furthermore, a hot air outlet is formed on the nozzle body to blow hot air over the entire width direction of the image receiving paper. A heating device for a pressure developing machine, which has a hot air pool communicating with an air outlet and extending in the width direction of the image receiving paper, and a passage communicating the hot air pool with the duct.