JPS62269960A - Simplified developing method for photographic sensitive material - Google Patents

Abstract

PURPOSE:To attain efficient developing processing by a simple carrying means and to obtain an optimum method for a self-processing type mini-laboratory system by fast feeding the succeeding photographic sensitive materials, curving them so as to project them downward and dipping them into a developing processing solution while carrying a carrying leading chip fixed on band-like photographic sensitive materials by a carrying means. CONSTITUTION:The carrying leading chip L is connected to the head of the band-like photographic sensitive materials F1, F2, carried at feeding speed V1 based upon a leading chip driving roller 14 and supplied to a developing processing tank 48 and the succeeding materials F1, F2 are fast fed by photographic sensitive material driving rollers 17, 18 at feeding speed V2 considerably larger than the V1. The materials F1, F2 are curved along a curve projected downward so as to be dipped into the developing processing solution, and under the status, the chip L is gradually carried at the speed V1 to pass the materials F1, F2 through the developing processing solution. Consequently, the number of parts can be reduced, the carrying means can be simplified and the optimum method for a self-processing mini-laboratory system can be obtained.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a simplified method for developing photographic materials.

[Background of the invention]

Recently, there has been a lot of research and development into self-processing mini-lab systems that allow end-users such as camera stores to easily develop and process opaque photographic film, which is a photosensitive material, to form negative film. being done.

Conventionally, the method for forming a negative film by developing photographic film, which is a photographic light-sensitive material, has been as follows: (b) A method in which a large number of photographic films are hung on a hanger with a weight attached to the lower end of each film, Develop each photographic film by moving the hanger up and down and horizontally? Methods such as immersing (blueing) and developing in the middle of the night are known.

Although the method (a) above allows large-scale processing, it requires a large number of rollers and the equipment is complicated, making it unsuitable for a home-processing minilab system. Also above (
In the method (b), a considerably large space is required for raising and lowering the hanger, and since it is a so-called batch process, continuous processing is difficult, and it is unsuitable for an in-house processing type minilab system.

On the other hand, (c) connecting the leading piece for conveyance to the tip of the photosensitive material,
Guide members for guiding both sides of the leading piece for conveyance are disposed in the developing solution, and while the leading piece is guided by the guide members, the following photographic material is passed through the developing solution by a roller. A method of developing was proposed.

[Problem that the invention seeks to solve]

However, in the method using a leading piece for conveyance as in (c) above, conventionally, a complicated guide member is required for smooth conveyance, and the width of the photosensitive material is wider than the width of the leading piece. When the material is small, transportation defects such as meandering of the photographic material are likely to occur, which is a considerable obstacle in applying it to an in-house processing type minilab system.

[Purpose of the invention]

The present invention has been made based on the above-mentioned circumstances, and its purpose is to enable efficient development processing using a simple conveying means, and to provide a simple and efficient method that is particularly suitable for in-house processing minilab systems. The object of the present invention is to provide a method for developing a photosensitive material.

[Means for solving problems]

In the method for developing a photographic light-sensitive material of the present invention, a leading piece for conveyance fixed to the head of a strip-shaped photographic light-sensitive material is conveyed by a conveying means provided at a level above the level of the developing solution in a developing tank, while By rapidly transporting the photographic material at a speed greater than the speed of the conveying means,
The method is characterized in that it includes a step of curving the photographic material along a downwardly convex curve and immersing it in a developing solution.

[Function and effect of the invention]

According to the present invention, the leading piece for conveyance fixed to the head of a strip-shaped photographic light-sensitive material is conveyed by the conveyance means provided at a level above the level of the developing solution in the developing tank, while the following photographic light-sensitive material is conveyed. By rapidly transporting the photographic material at a speed greater than the speed of the conveying means, the photographic material is curved along a downwardly convex curve and immersed in the developing solution. There is no particular need for guide members to guide both side edges of the photosensitive material along its path, and the flexibility and elasticity of the photographic material can be utilized to allow the photographic material to pass through the developing solution. This has an extremely simple configuration, which is extremely advantageous when applied to a self-processing minilab system.

Then, the photographic material is immersed in the developing solution by rapidly moving it relative to the leading piece, so that the photographic material can be quickly immersed in the developing solution, and the resulting image processing is performed. In other words, a sufficient amount of time can be taken for the photographic material to pass through the developing solution. Since the photographic light-sensitive material is rapidly fed, the photographic light-sensitive material to be subsequently processed and the guide piece can be quickly set, and development processing can be efficiently achieved.

[Specific examples]

An embodiment of the present invention will be described below.

1 and 2 show the main parts of a developing processing apparatus that can be used to carry out the present invention, and this example conveys a conveying leading piece along a substantially horizontal line, This is an example of a case where two photographic materials are connected and developed on a piece.

11 is one roller shaft, and 12 is the other roller shaft. One roller shaft 11 and the other roller shaft 12 are connected to each other by a pivot bearing 13 and extend coaxially. A leading piece driving roller 14 is fixed to one roller shaft 11, and a leading piece driving roller 14 is fixed to the other roller shaft 12.
The photosensitive material driving rollers 17° and 18 are fixed, and the leading piece conveying rollers 15° and 16 are not fixed and are held freely rotatable. One roller shaft 11 is connected to a motor via a gear or the like, and when the one roller shaft 11 is rotated, the other roller shaft 12 is rotated at a higher rotation speed via the pivot bearing 13,
As a result, the leading piece driving roller 14 is rotated at the feed speed V, and the photographic material driving roller 17.
18 is a feed rate V that is considerably larger than the feed rate vl,
It is rotated by These feed speeds V and feed speeds V
t is appropriately determined in relation to the development processing time.

The leading piece driving roller 14 is provided above the level of the developing solution.

19, 20, and 21 are the leading piece driving rollers 14, respectively.
22123 are contact rollers that are in contact with the leading strip conveying rollers 15 and 16, and 22123 are contact rollers that are in contact with the photosensitive material driving rollers 17 and 18, respectively.

Opposing rollers 22 and 23 that are in contact with the photosensitive material driving rollers 17 and 18 respectively have rotating arms 24 and 25.
The rotary arm 24.25 is rotatably held by a fixed shaft 26 fixed between one end of the rotary arm 24, 25, and the other end of the rotary arm 24.25 is fixed to a rotary shaft 27 rotatably supported on the outer wall of the device. Further, one end of a connecting arm 28, 29 is rotatably connected to the opposing roller 22, 23, and the connecting arm 28, 29
A regulation roller 30.31 is pivotally supported at the other end, one end of a rotating arm 32.33 is rotatably connected to the regulation roller 30.31, and the other end of the rotating arm 32.33 is connected to the device. It is fixed to a rotation shaft 34 rotatably supported on the outer wall.

Reference numerals 34 and 35 indicate inlet rollers disposed near the developing solution, and these inlet rollers 34 and 35 are supported by a rotating shaft 36 rotatably held on the outer wall of the apparatus, and these inlet rollers 34 and 35 are A driving force transmission belt 37.
38 is suspended, and the photographic material driving roller 22.2
3, the inlet rollers 34 and 35 rotate at a feed rate v2. 39.40 is the entrance roller 34, 3
These rollers 39 and 40 are rotatably held on a fixed shaft 43. This fixed shaft 43 is held at one end of a collision plate 45 arranged to face the outlet portions of the central rollers 15 and 20, and the other end of this collision plate 45 is rotatably supported on the outer wall of the device. It is fixed to a rotation shaft 44 that is rotated.

46.47 is an elastic pressing plate held on the fixed shaft 43, and the opposing roller 39.40 is the entrance roller 3.
4 and 35, these pressers 4
6.47 comes into pressure contact with the inner wall 49 of the developing tank 48.

50.51, 52.53 are conveyance rollers, the lower roller 50152 is the driving roller, and the upper roller 5
1°53 is a driven roller. Conveyance roller 50.5
1.52° 53 is rotated at the same feed speed V as the leading piece driving roller 14, and horizontally conveys the leading piece sent from the driving roller 14 for further m.

These conveyance rollers 50, 51, 52, 53 are provided above the level of the developing solution.

54, 55, 56, 57 are regulation plates, and according to these regulations, photographic materials F1 and F5, details of which will be described later, are
The movement in the width direction is controlled.

Numerals 58 and 59 are guide sprockets for the leading piece, and these guiding sprockets 58 and 59 are arranged on the exit side of the leading piece driving roller 14 and the leading piece conveying roller 16. 71.72 is a stopper.

A photographic material is developed in the following manner using the development processing apparatus having the above configuration.

As shown in FIG. 3, a leading piece for conveyance is connected to the leading end of the band-shaped photographic materials F1 and F to be developed.

This connection is performed, for example, in a dark box. This leading piece for conveyance consists of a rigid body made of, for example, plastic, which has rigidity at the tip, and two flexible legs Lz, Lz connected to this rigid body L1, The tips of the photographic materials F1 and F are connected to these flexible legs Lx, Lx, respectively, using adhesive tape or the like. The perforations L3 are fitted into guiding sprockets 58 and 59 during conveyance of the leading piece, thereby guiding the leading piece.

As shown in FIG. 4, the photographic photosensitive materials F and Fl, which are formed by connecting leading pieces for conveyance, are placed between rollers 14, 15, 16 and opposing rollers 19°, 20°, with the leading pieces at the top.
21 to the anti-prefix area.

In this case, since the photographic light-sensitive material is normally stored in a cartridge wound with the emulsion side facing inside, it has a fairly strong curling tendency, and considering this, the photographic light-sensitive material It is preferable to supply F1 and F2 with their emulsion surfaces facing downward, that is, with their emulsion surfaces facing toward the bottom of the developing tank in FIG. By adopting such a posture, when the photographic light-sensitive material is later brought into a downwardly convex curved state by fast forwarding, it can be brought into a proper curved state without causing abnormal curling.

When the leading piece is conveyed by rollers in the direction of the arrow, and the tip of the leading piece's rigid body L1 collides with the opposing rollers 22 and 23, as shown in FIG. Due to the rigidity, the counter roller 22.23 is lifted around the pivot axis 27 of the pivot arm 24.25, and the regulating roller 30.31 follows this and lifts the counter roller 22.23 around the pivot axis 34 of the pivot arm 32.33. lifted up in the center,
The counter roller 22.23 moves from the lower position 61 to the upper position 6.
2 (see FIG. 2), the regulating roller 30.31 is moved from the lower position 63 to the upper position 64 (see FIG. 2), and the path for the leading piece is opened.

When the tip of the rigid body L1 collides with the collision plate 45, as shown in FIGS. 6 and 7, the collision plate 45
is lifted up, thereby rotationally displacing the counter rollers 39, 40 about the pivot axis 44 from the lower position 65 to the upper position 66 (see FIG. 2), opening the path for the leading piece.

Then, before the rear end of the rigid body is detached from the leading piece driving roller 14, its tip is transferred to the conveying roller 50+5.
Inserted between 1 and 81'11 feed roller 50.51
Due to the driving force of
, it is transported horizontally in the direction of arrow A.

When the rear end of the rigid body L1 comes off the regulating roller 30.31, as shown in FIG.
1, opposing roller 22, 23, rotating arm 24,
25, connecting arms 28, 29, rotating arms 32, 33
Due to its own weight, the flexible legs Lz following the rigid body L1,
Lx and the following photographic materials F1 and F2 are pushed downward and displaced. and counter roller 22.23
When the roller returns to its original lower position 61, the photographic material F and F, which were pressed by the photographic material driving roller 17.1.8 and the opposing roller 22.23, are transferred to the photographic material driving roller 17.1.8 and the opposing roller 22.23. Feed rate v according to 17.18
At 2, it will be fast-forwarded to the leading piece. Furthermore, when the rear end of the rigid body L+ comes off the contact roller 39.40, as shown in FIG.
The flexible legs Lx, Lx and the photographic materials F and F2 are greatly pushed downward and displaced by their own weight.

In this way, the rigid body and the flexible legs L2°F2 are largely displaced downward, causing the contact roller 39.
40 returns to the original lower position 65, and the photosensitive materials F1 and F are connected to the driving force transmission heel 37.38 suspended from the photosensitive material driving rollers 17, 18, and the opposing roller 39.40. In this state, fast forwarding continues, and the photographic materials F1 and B are placed in a position where they are curved along a downwardly convex curve, and in this position, the photographic materials F1 and F is immersed in the developing solution, and the developing process is started. Photographic material F
When the rear ends of 1 and F come off the inlet roller 34.35 and the opposing roller 39.40, as shown in FIG. Pressed and held. The developing process is carried out in this position, and the leading piece is moved at a feed speed v1 by the conveying roller 50.51°52.53 to the arrow A.
Following the conveyance of the leading piece, the photographic light-sensitive materials F1 and F are gradually pulled up from the developing process from the beginning, and the rear ends are held in pressure contact with the holding plates 46 and 47. The part slides out from between the holding plate 46, 47 and the inner wall 49 due to the tensile force of the leading piece, and is pulled out of the developing liquid while passing through the developing liquid and following the conveyance of the leading piece. , the development process is completed.

When the development process for - is completed in this manner, the leading piece is supplied to the next development tank configured in the same manner, and the next development process is performed in the same manner.

According to the above embodiment, the leading piece for conveyance is connected to the tip of the strip-shaped photographic light-sensitive materials F1 and F, and the leading piece for conveying is set at the head, and the feeding speed by the leading piece driving roller 14 is In addition to being transported by v1 and supplied to the development processing tank,
The following photosensitive materials F1 and F2 are rapidly fed with respect to the conveying leading piece by the photosensitive material driving rollers 17 and 18 at a feed speed fVZ which is considerably larger than the feed speed v1, thereby producing the photographic photosensitive materials. F and F are curved along a downwardly convex curve and immersed in a developing solution, and in this state, the leading piece for conveyance is gradually conveyed at a feed speed v1 to obtain the photosensitive material. F1 and F
, through the developing solution, there is no particular need for guide members for guiding both side edges of the leading piece along the path in the developing solution, and the photosensitive material F1
The flexibility and elasticity of and F can be used to pass through the developing processing solution, and as a result, the number of parts is small and the transportation means is extremely simple, making it suitable for in-house processing minilab systems. This is extremely advantageous in some cases.

Then, the photographic materials F and Fl are immersed in the developing solution by being rapidly fed at a feed speed V greater than the feed speed V of the leading piece, so that the photographic materials F1 and F are rapidly developed. Can be immersed in processing liquid,
A sufficient amount of time can be provided for the image forming process, that is, the time for the photographic materials F1 and F2 to pass through the developing solution. Since the photographic materials F and F2 are fast-forwarded, the photographic materials F, F and the leading piece to be processed subsequently can be set quickly, making it possible to efficiently accomplish the development process. Become. Usually, multiple development tanks are provided to sequentially develop each horizontal stripe, and the time required for development may vary depending on the type of development tank. Since F is individually developed, the feed speed V of the leading piece can be individually determined for each development tank, and as a result, each horizontal stripe can be appropriately developed.

In this example, the roller shaft 11 of the leading piece driving roller 14 and the photographic material driving roller 17.
18 roller shafts 12 are connected by a pivot bearing 13, and a common motor rotates the leading piece driving roller 14 at a feed speed v1, and also rotates the photosensitive material driving rollers 17 and 18 at a feed speed V, or The rollers 17 and 18 for driving the photosensitive material are rotated at a large feed speed vt, and the rollers 14 for driving the leading piece are rotated at a high feed speed vt.
A contact roller 22.23 is made smaller in diameter than the guide piece so that it passes through a position below the path of the leading piece, and is in contact with the photographic photosensitive material driving roller 17.18, and the photographic photosensitive material driving roller 17. .18 and an inlet roller 34 interlocked via a power transmission belt 37.38.
．． The contact rollers 39 and 40 that are in contact with the guide member 35 are configured to be movable between a lower position where they are in contact with each other and an upper position where they are separated and open a path for the leading piece. By using a body consisting of a body L1 and a flexible leg F2 following it, due to the rigidity of the rigid body L1,
Counter roller 22.23 and counter roller 39.40
etc., so that the passage for the leading piece can be opened, so that the leading piece is always connected to the leading piece driving roller 1.
While the material is gradually transported at a feed rate V of 4,
The photographic light-sensitive materials F1 and Fl are the rigid body L of the leading piece.
When the rear end of the + comes off the contact roller and the contact roller returns to the lower position, rapid forwarding is automatically started at a feed speed V□ which is higher than the feed speed v1. Therefore, in order to rapidly feed the photographic light-sensitive materials F1 and F5, it is not necessary to variably adjust the rotational speed of the motor. By rapidly forwarding the photosensitive materials F1 and F at a circumferential speed v2, the photographic materials F1 and F are immersed in the developing solution, eliminating the need for controls such as temporarily stopping the rotation of the motor. The motor control mechanism becomes extremely simple.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment and various embodiments are possible.

For example, a flexible leading piece may be used and the leading piece may also be passed through the developing process in the same way as the photographic light-sensitive material; in this case, the leading piece is not transported horizontally. Therefore, there is no need to lift the contact roller that contacts the inlet roller provided at the entrance of the developing processing solution to an upper position. In addition, a member similar to the leading piece may be connected not only to the leading end but also to the trailing end of the photographic light-sensitive material so that the entire body passes through the developing solution. It is not necessary to lift the abutment roller that abuts the inlet roller provided in the upper position to an upper position.

[Brief explanation of the drawing]

FIGS. 1 and 2 are an explanatory longitudinal sectional front view and an explanatory longitudinal sectional side view showing the main parts of a developing processing apparatus that can be used in carrying out the present invention, and FIG. 3 is a connection between the first four pieces and the photographic light-sensitive material. 4 to 10 are explanatory diagrams illustrating an embodiment of the present invention. 11.12... Roller shaft 13... Pivot bearing 14... Leading piece driving rollers 15, 16... Leading piece conveying roller 17.18... Photographic photosensitive material driving roller 19.2
0.21...Contact roller 22.23...Contact roller 24.25, 32.33, 41.42...Rotating arm 26, 43...Fixed shaft 27,34.44...
・Rotation axis 28.29...Connection arm 30.31・
...Regulation rollers 34, 35...Entrance roller 3
6...Rotating shaft 37, 38...-Driving force transmission belt 39, 40...Contact roller 45...Collision plate 4
6.47... Pressing plate 48... Development processing tank 4
9...Inner wall 50.51, 52.53...Conveyance roller 54.55
．． 56.57...Regulation plate 58.59...Guiding sprocket 71.72...Stopper...Transportation leading piece L+...Rigid body Lt...Flexible leg piece... ... Perforation F, , F, ... Photographic light-sensitive material Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 1) While conveying the conveying guide piece fixed to the beginning of the strip-shaped photographic light-sensitive material by means of a conveying means provided at a level above the level of the developing solution in the developing treatment tank, the following photographic light-sensitive material is conveyed by the conveying means. Developing a photographic light-sensitive material, comprising the step of curving the photographic light-sensitive material along a downwardly convex curve and immersing it in a developing solution by rapidly forwarding the material at a speed greater than the speed of Method.