SU1536349A2 - Apparatus for chemical photographic processing of web and format photographic materials - Google Patents

Abstract

The invention relates to film photographic and can be used in the chemical-photographic processing of photographic materials. The purpose of the invention is to improve the quality of processing and reliability of work when the position of the device is changed. In operation, the processed photographic material is pressed against the inclined, bent upper surfaces 13 of the partitions 11 and 12 installed in the chamber 1 along the side walls of the solution supply unit 4. As a result, the speed of the solution from chamber 1 is reduced through the inter-ball spaces and a stable liquid boundary layer is formed at the interface with the emulsion layer of the photographic material. 2 Il.

Description

The invention relates to a film-photo-Technique, and in particular to devices for processing the exposed photographic material, and is additional to the main ed. No. 1105853.

The purpose of the invention is to improve the quality of processing and increase the reliability when changing the position of the device. |

In FIG. 1 shows an Al device for chemical-photographic processing of photographic materials, a section; in FIG. 2 • about, top view.

The device consists of a horizontally located chamber 1 for processing the material, pairwise transporting rollers 2 and 3, a node 4 for supplying the processing solution, vertical cylindrical channels 5 r with holes 6 and 7 of large and small diameters for the applicators 8 in the form of balls, wall 9 adjacent to node 4 supply, solution, opposite wall of GO chamber 1. *

Holes 6 and 7 of different diameters with applicators 8 are located on the tray 9 of the chamber 1 in the form of alternating rows in the same sequence as the known device.

The applicators 8 under the pressure of the processing solution are located above the surface of the wall 9 of the processing chamber 1 at two levels.

At the inlet and outlet of chamber 1, along the lateral surfaces of the solution supply unit 4, along its entire width with a gap, partitions 11 and 12 with inclined curved upper parts (bends) 13 are installed, directed to the rtoron of the entrance to chamber 1. The upper edges of the partitions 11 and 12 located at the height of applicators 8 lower level.

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The device operates as follows.

Photographic material is fed into the processing chamber 1 by means of transporting rollers 2 and 3 and is oriented by the emulsion layer towards the wall 9 adjacent to the processing solution supply unit 4 with openings 6 and 7 located on it.

The solution under pressure in the feed unit 4 fills it, and the applicators 8 rise to the lower and upper levels, locking the holes 6 and 7 of the vertical channels 5 ·

When passing through the processing chamber 1, the photographic material contacts the applicators 8 and causes them to immerse in the solution supply unit 4. When this occurs, the outflow of the solution into the processing chamber 1 in the width zone of the transported photographic material.

As a result, the emulsion layer of the photographic material facing the applicators begins to be intensively wetted by the treatment solution flowing into the treatment chamber 1 from the opening channels 5.

The presence of partitions 11 and 12 installed along the lateral surfaces of the supply unit 4 at the entrance and exit of the processing chamber 1, helps to reduce the drainage of the solution from the processing chamber through the inter-ball gaps and the formation of a stable boundary fluid layer of the solution in the processing chamber at the border with the emulsion layer of the photographic material. During processing, the stability of the boundary fluid layer is determined by its location between the photographic material, the wall 9 of the chamber and the partitions 11 and 12, as it were, in an enclosed space. In this case, possible deviations of the location of the device from the horizon do not affect the violation of the stable liquid layer and, therefore, the uniformity of the chemical-photographic processing of the photographic material.

The inclined parts 13, creating an inclined surface at the entrance to the processing chamber 1, provide non-stop sliding (transportation) of the formats saturated with the solution, weighted and lost their original stiffness.

The processed photographic material from the processing chamber 1 provides non-stop sliding (transportation) of formats saturated with solution, weighted and lost their original stiffness.

The processed photographic material from the processing chamber 1 is output by a second pair of conveying rollers 2 and 3.

ιWorked photo-solutions from processing chamber 1 are discharged through the gaps of the mea <dividing walls 11 and 12 and the side walls of the chamber.

The use of partitions with oblique folds installed with a gap on the side walls of the solution supply unit allows improving the quality of processing of format and roll photographic materials in processing devices mounted on transporting vehicles by reducing the rate of solution draining from the processing chamber through the inter-ball gaps and the formation of a stable liquid layer on the border with the emulsion layer of photographic material.

At the same time, non-stop transportation through the processing chamber of swollen formatted photographic materials through inclined bends of the partitions directed to the entrance to the processing chamber and through the liquid layer of the solution is ensured, which increases the reliability of the device.

In addition, due to the mechanical removal of solutions from the photographic material by partitions that act as a moisture collector, the transfer of processing solutions from the solution supply unit of another treatment chamber is reduced if a series of treatment chambers are used in series. This contributes to the preservation of the solutions during the work of the processing unit 5.

Claims (1)

Claim A device for chemical-photographic processing of roll and format photo materials according to ed. St. No. 1105853, characterized in that, in order to improve the quality of processing and reliability when changing position, device, at the inlet and outlet of the treatment chamber, partitions are installed between the conveyor rollers and the solution supply unit along its side walls, the length of which is equal to the width of the unit solution, each of the partitions' is made with an inclined bent upper part directed towards 25 * the entrance to the chamber, while the upper edges of the partitions are located at the height of the applicators of the lower level.