JPH03209473A - Photosensitive material processing unit - Google Patents

Abstract

PURPOSE:To efficiently heat a photosensitive material and to prevent heat from being transmitted to another part by providing a radiation drying part equipped with mutually faced parallel side walls on a reflection board to reflect electromagnetic waves to be radiated from a radiation drying heater. CONSTITUTION:A reflection board 5 is provided so as to surround a radiation drying heater 4 and on the reflection board 5, parallel side walls A are formed. Namely, since the radiation drying part is provided on the reflection board 5 having mutually faced parallel side walls A, the degree of energy arrival to the faced photosensitive material is high and cross sectional efficiency is high as well. Further, radiation is made efficient and simultaneously, radiation to peripheral parts is reduced as well. Thus, the radiation is efficiently executed to the photosensitive material and the influence of heat to the peripheral parts can be suppressed low.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a drying section of a photosensitive material processing apparatus.

[Conventional technology]

The drying section in the final stage of a photosensitive material processing apparatus plays an important role in evaporating water contained in the emulsion layer of the photosensitive material and eliminating tackiness.

For this purpose, a heat source is provided, and the entire interior of the drying section serves as a greenhouse to remove moisture from the photosensitive material passing through it. For this reason, they generally have a heat source with a large heat capacity, and the heat does not stay within the drying area but is transmitted to the surrounding area.
In particular, it reaches the water washing or stabilization tank in the immediately preceding process and warms them. Washing or stabilization treatment tank water or treatment;
Preferably, the liquid is kept at room temperature or below. If the temperature rises above room temperature, the water will spoil faster and the results of the treatment will be poor.

In order to prevent such adverse effects of temperature in the drying section,
It is necessary to devise measures to prevent the temperature of the drying section from being transmitted to other parts.

[Problem to be solved by the invention]

An object of the present invention is to solve the above-mentioned problems, increase the thermal efficiency in the drying section, efficiently heat the photosensitive material, and prevent heat transfer to other parts as much as possible.

[Means to solve the problem]

This object is achieved by a photosensitive material processing apparatus characterized in that the reflector for reflecting electromagnetic waves emitted from the radiant drying heater has a radiant drying section with parallel side walls facing each other.

〔Example〕

By using a radiant drying heater in the drying section of a photosensitive material processing equipment, the efficiency of heating the photosensitive material can be increased, and in order to increase the radiation efficiency, the shape of the reflector of the radiant drying heater has been changed to
The shape has parallel side walls facing each other to prevent self-heating of the heater and adverse effects on others.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side sectional view showing the overall configuration of a photosensitive material processing apparatus. The image-exposed photosensitive material enters from the entrance section 1 on the upper left, passes through a multi-tank for development, bleaching, and stabilization, and a stabilizing treatment tank 8 in order, enters the drying section 2 from above, and is dried while being conveyed downward. and stored in the film basket 3.

FIG. 2 shows the drying section in detail, and a pair of rollers 7 that transport the photosensitive material from above to below are driven by a drive system (not shown).
It is rotating in the direction of the arrow. A reflecting plate 5 is provided so as to surround the radiant drying heater 4. The reflector 5 has A in the figure.
Parallel side walls are formed as shown in . In addition, guide 6
This prevents the photosensitive material from coming into contact with the radiant drying heater 4, and is formed in the shape of a drainboard, and does not prevent the radiant heat from the radiant drying heater 4. FIG. 3 shows data obtained by simulating the thermal radiation of a radiant drying section in which the reflecting plates have parallel side walls facing each other using ray trajectories.

For comparison, FIG. 4 shows an example using an elliptical reflector. As is clear from the figure, the radiation drying section in which the reflective plates have parallel side walls facing each other has a high degree of energy delivery to the facing photosensitive material, and therefore has a high cross-sectional efficiency and radiates efficiently, while at the same time emitting less radiation to the surrounding area. I understand that.

If a lot of heat is released to the surrounding area, the pair of rollers will be heated and thermal expansion and damage will be accelerated.Also, if the thermal efficiency is poor and the heater capacity is increased to compensate, this drying section will become the heat source as a whole. As a result, the adjacent water washing or stabilization treatment tank 8 is heated, leading to water spoilage.
As shown in the figure, by adopting a configuration that efficiently radiates radiation onto the photosensitive material, sufficient drying can be achieved without increasing the heater capacity, and the influence of heat on the surrounding areas can be suppressed to a minimum.

〔Effect of the invention〕

With this configuration, thermal efficiency is high and energy saving is achieved.
Negative effects such as rot on the surrounding area are reduced, and the treatment results can be maintained in good condition.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing the overall configuration of a photosensitive material processing apparatus. FIG. 2 is a side sectional view of the drying section, and FIGS. 3 and 4 are diagrams showing simulation data of ray trajectories of thermal radiation. ■...Inlet section 2...Bag drying section 3...Film basket 4...Radiation drying heater 5...Reflector plate 6...Guide 7...Pair of rollers

Claims (1)

[Claims] A photosensitive material processing apparatus comprising a radiation drying section in which a reflection plate that reflects electromagnetic waves emitted from a radiation drying heater has parallel side walls facing each other.