JP5171383B2 - Photosensitive material development processing method, method for producing film with conductive film, and photosensitive material development processing apparatus - Google Patents

Description

The present invention relates to a photosensitive material development processing method for developing an exposed strip-shaped photosensitive material in a developer , a method for producing a film with a conductive film, and a photosensitive material development processing apparatus .

  In recent years, an electromagnetic wave shielding film of a plasma display panel (PDP) has been known as a light-transmitting conductive film that has been subjected to exposure processing and development processing after the silver salt photosensitive material is subjected to surface resistance reduction processing.

  In order to improve the electroconductivity of the silver salt developed silver, the PDP electromagnetic wave shielding film can be produced from a silver salt light-sensitive material. Although it is effective to increase the amount of swelling of the coating film, the strength of the silver salt coating film is weakened during development, and the silver elution amount during development is increased. Peeling of the salt coating film or reduced silver is likely to adhere to the film surface via a roller and cause surface defects.

  As a countermeasure against this, as disclosed in Patent Document 2, fluid is ejected from a plurality of ejection holes provided on the surface of the direction changing member that is a conveyance guide, and a gap is formed between the direction changing member and the film. There has been proposed an apparatus for carrying a film in a non-contact manner.

JP 2006-332459 A

JP-A-8-245028

  However, in the apparatus described in Patent Document 2, since fluid is ejected from a plurality of ejection ports provided on the surface of the direction changing member, the fluid is not ejected from the place where the fluid is ejected across the width direction of the direction changing member. A place arises.

  For example, if the developing solution is not uniformly applied across the width direction of the direction changing member when performing the developing process, the renewal of the developing solution on the surface of the silver salt-containing layer is different, resulting in a difference in developing speed. Streaky unevenness may occur in the image.

  In order to eject a uniform developer in the width direction of the direction changing member, it is preferable to provide a plurality of slits across the width direction of the direction changing member. It is difficult to make the amount of the developer jetted uniformly in the width direction, and there is a possibility that a difference occurs in the flying height of the film in the width direction of the direction changing member. As a result, the above-described difference in development speed may occur, and the developed silver image may be uneven.

The present invention has been made in view of such circumstances, and a photosensitive material developing method for obtaining a substantially uniform developed silver image having no unevenness in the width direction without causing silver stains, scratches, film peeling, etc. , It is providing the manufacturing method of a film with an electrically conductive film, and a photosensitive material development processing apparatus .

According to the first aspect of the present invention, a belt-shaped photosensitive material having a silver salt-containing layer on a support film is transported into a developing solution for development processing, and intersects the transport direction of the strip-shaped photosensitive material in the developer. A photosensitive material development processing method in which the strip-shaped photosensitive material is redirected by a photosensitive material direction changing member arranged in a direction, wherein a plurality of slit-like shapes formed along a longitudinal direction on a surface of the photosensitive material direction changing member The developer is discharged from the discharge port, and the belt-shaped photosensitive material is lifted from the photosensitive material direction changing member to change the direction in a non-contact manner. The amount of the developer discharged from both ends of the belt-shaped photosensitive material in the width direction is regulated, the interval between the belt-shaped photosensitive material and the photosensitive material direction changing member is adjusted, and the belt-like photosensitive material in the photosensitive material direction changing member is adjusted. Material transport direction Distance between the discharge port of the flow-side conveyance direction downstream side, is characterized by less than the distance between the outlet of the conveying direction intermediate portion of the belt-shaped photosensitive member.

According to the first aspect of the present invention, the belt-shaped photosensitive material having the silver salt-containing layer on the support film is conveyed into the developer and developed. In the developer, a photosensitive material direction changing member is disposed in a direction intersecting the transport direction of the belt-shaped photosensitive material, and the developer is discharged from a plurality of slit-like discharge ports formed in the longitudinal direction of the surface. By discharging the developer from the discharge port, the belt-shaped photosensitive material floats from the surface of the photosensitive material direction changing member and is redirected in a non-contact manner. At that time, the amount of developer discharged from the widthwise ends of the belt-shaped photosensitive material is regulated by the restriction plates provided at both widthwise ends of the photosensitive material direction-changing member, and the belt-shaped photosensitive material and the photosensitive material direction-changing member are By adjusting the distance, the distance between the belt-shaped photosensitive material and the photosensitive material direction changing member becomes substantially uniform in the width direction. For this reason, the occurrence of silver stains and scratches on the belt-shaped photosensitive material due to the contact between the surface of the photosensitive material direction changing member and the belt-shaped photosensitive material is suppressed, and the occurrence of film peeling due to the large discharge flow of the developer is generated. It is suppressed. For this reason, a substantially uniform developed silver image having no unevenness in the width direction on the support film can be obtained.
In addition, since the interval between the discharge port upstream of the belt-shaped photosensitive material in the photosensitive material direction changing member and the downstream side of the conveyance direction is smaller than the interval between the discharge ports at the intermediate portion in the conveyance direction of the belt-shaped photosensitive material, On the upstream side in the transport direction and on the downstream side in the transport direction, the developer is discharged from the discharge ports having a smaller interval than the intermediate portion in the transport direction of the belt-shaped photosensitive material. The developer is discharged from the four directions of the widthwise ends of the belt-shaped photosensitive material, the inlet on the upstream side in the transport direction of the belt-shaped photosensitive material, and the outlet on the downstream side in the transport direction. At the outlet on the downstream side in the direction, the belt-like photosensitive material and the photosensitive material direction changing member tend to come into contact with each other. In the present invention, the developer is discharged from the discharge port having a smaller interval than the intermediate portion of the belt-shaped photosensitive material in the transport direction upstream and downstream in the transport direction of the belt-shaped photosensitive material. Sufficient developer is discharged on the upstream side and the downstream side in the transport direction, and the contact between the belt-shaped photosensitive material and the first cylindrical body is suppressed. For this reason, generation | occurrence | production of the silver stain of a strip | belt-shaped photosensitive material, a damage | wound, film | membrane peeling etc. is suppressed further.
Invention according to claim 2, in the photosensitive material developing method according to claim 1, characterized in that the discharge amount of the developer per 1m ejects the developer so that 50~150l / min It is said.

According to a third aspect of the present invention, in the photosensitive material development processing method according to the first or second aspect , the discharge port is discharged from the discharge port with an aperture ratio set to 0.6 to 2%. The amount of the developer is adjusted.

According to the invention described in claim 3 , by setting the opening ratio of the discharge port to 0.6 to 2%, the amount of the developer discharged from the plurality of slit-like discharge ports is appropriately adjusted, The distance between the strip-shaped photosensitive material and the photosensitive material direction changing member becomes even more uniform. For this reason, the occurrence of silver stains and scratches on the belt-shaped photosensitive material due to the contact between the surface of the photosensitive material direction changing member and the belt-shaped photosensitive material is suppressed, and the occurrence of film peeling due to the large discharge flow of the developer is generated. It is suppressed. On the other hand, when the opening ratio of the discharge ports is smaller than 0.6%, the amount of the developer discharged from the plurality of discharge ports becomes insufficient, and the surface of the photosensitive material direction changing member and the belt-shaped photosensitive material are in contact with each other. May cause silver stains or scratches on the belt-shaped photosensitive material. On the other hand, if the opening ratio of the discharge port is larger than 2%, the discharge flow of the developer becomes large, and there is a possibility that film peeling or the like occurs.

According to a fourth aspect of the present invention, in the photosensitive material development processing method according to any one of the first to third aspects, a tension when the belt-shaped photosensitive material is conveyed is 3 N / m or more and 150 N. / M or less.

According to a fifth aspect of the present invention, in the photosensitive material development processing method according to any one of the first to fourth aspects, the silver salt photosensitive layer of the belt-shaped photosensitive material contains gelatin. Yes.
According to a sixth aspect of the present invention, in the photosensitive material development processing method according to the fifth aspect , the gelatin film quality is enhanced by adding a hardener to the silver salt photosensitive layer of the belt-shaped photosensitive material. It is a feature.

According to a seventh aspect of the present invention, in the photosensitive material development processing method according to any one of the first to sixth aspects, the photosensitive material direction changing member intersects the transport direction of the belt-shaped photosensitive material. A first cylindrical body provided with a plurality of slit-like discharge ports for discharging the developer along the longitudinal direction on the surface, and disposed within the first cylindrical body, the developer And a second cylindrical body provided with a spout for ejecting the water.

According to the seventh aspect of the present invention, the first cylindrical body in which the photosensitive material direction changing member disposed in the developer is disposed in a direction intersecting the transport direction of the belt-shaped photosensitive material, and the first cylindrical shape A second cylindrical body disposed inside the body, wherein the first cylindrical body has a plurality of slit-shaped discharge ports formed along the longitudinal direction on the surface, and the second cylindrical body. Has a spout. Then, the developer is ejected from the outlet of the second cylindrical body into the first cylindrical body, and the developer inside the first cylindrical body is further discharged from the plurality of slit-like discharge ports to the first cylindrical body. The belt-shaped photosensitive material is levitated from the surface of the first cylindrical body, and the direction of the belt-shaped photosensitive material is changed without contact with the surface of the first cylindrical body. For this reason, the contact between the belt-shaped photosensitive material and the surface of the first cylindrical body is suppressed, and the occurrence of silver stains, scratches, film peeling (peeling of the silver salt coating film or developed silver image) of the belt-shaped photosensitive material is suppressed. The Further, since the discharge of the developer from the slit-like discharge port of the first cylindrical body is continuous in the longitudinal direction, the occurrence of development unevenness in the width direction of the belt-shaped photosensitive material is suppressed.

According to an eighth aspect of the present invention, in the photosensitive material developing method according to the seventh aspect , the discharge port is narrow on the back side of the first cylindrical body and wide on the front side of the first cylindrical body. It is characterized by being formed into a tapered shape.

According to the invention described in claim 8 , since the discharge port is formed in a tapered shape which is narrow on the back surface side of the first cylindrical body and wide on the front surface side of the first cylindrical body, the discharge port discharges from the discharge port. Increase in the flow pressure of the developing solution is suppressed, and the occurrence of film peeling of the strip-shaped photosensitive material is suppressed.

According to a ninth aspect of the present invention, in the photosensitive material development processing method according to the seventh aspect , the second cylindrical body includes an introduction portion that introduces the developer at one end in a longitudinal direction, and the ejection port A plurality of ejection holes formed in the longitudinal direction, wherein the ejection holes provided on the other end side in the longitudinal direction are smaller than the ejection holes provided on one end side in the longitudinal direction.

According to invention of Claim 9 , a developing solution is introduce | transduced into the introducing | transducing part provided in the longitudinal direction one end of the 2nd cylindrical body, and the several ejection hole formed in the longitudinal direction of the 2nd cylindrical body From which the developer is ejected. At that time, since the ejection hole provided on the other end side in the longitudinal direction of the second cylindrical body is smaller than the ejection hole provided on the one end side in the longitudinal direction, the ejection hole on the other end side and the ejection on the one end side The difference in the amount of developer ejected from the hole is reduced, and the developer ejected from the plurality of slit-like ejection ports of the first cylindrical body is substantially uniform in the width direction. For example, when the developer is introduced from one end in the longitudinal direction of the second cylindrical body, the plurality of ejection holes of the second cylindrical body have the same diameter from one end side to the other end side in the longitudinal direction, or the second cylinder When the cylindrical body is disposed only at the inlet to the first cylindrical body, the static pressure is large on the other end side of the first cylindrical body, and the developer discharge amount from the discharge port on the other end side is large. The developer discharge amount from the discharge port on one end side (introduction side) tends to be small. In the present invention, since the ejection hole provided on the other end side in the longitudinal direction is smaller than the ejection hole provided on one end side (introduction side) in the longitudinal direction, the ejection hole on the other end side and the ejection hole on the one end side The difference in the amount of the developer ejected from is small, and as a result, the developer ejected from the plurality of ejection ports of the first cylindrical body becomes substantially uniform in the width direction.

According to a tenth aspect of the present invention, in the photosensitive material development processing method according to the ninth aspect , the ejection holes gradually increase from the other end side in the longitudinal direction of the second cylindrical body toward the one end side. It is characterized by being formed to be large.

According to the invention described in claim 10 , since the ejection holes are formed so as to gradually increase from the other end side in the longitudinal direction of the second cylindrical body toward the one end side, The difference in the amount of developer to be ejected is further reduced. Therefore, the developer discharged from the plurality of discharge ports of the first cylindrical body becomes even more uniform in the width direction.

According to an eleventh aspect of the present invention, there is provided a method for producing a film with a conductive film, wherein the strip-shaped photosensitive material is developed using the photosensitive material developing method according to any one of the first to the tenth aspects. And a step of forming a metallic silver part.
According to a twelfth aspect of the present invention, there is provided a method for producing a film with a conductive film, wherein the strip-shaped photosensitive material is developed using the photosensitive material developing method according to any one of the first to tenth aspects. And a step of forming a metal silver part and a step of plating on the metal silver part to form a conductive film.

According to a twelfth aspect of the present invention, the belt-shaped photosensitive material is developed using the photosensitive material developing method according to any one of the first to tenth aspects to form a metallic silver portion. A film with a conductive film is manufactured by performing a process and a process of forming a conductive film by plating on the metal silver part. At that time, the occurrence of silver stains and scratches on the belt-shaped photosensitive material due to contact between the surface of the photosensitive material direction changing member and the belt-shaped photosensitive material is suppressed, and the occurrence of film peeling due to a large discharge flow of the developer is generated. By being suppressed, a substantially uniform metallic silver portion having no unevenness in the width direction is formed on the strip-shaped photosensitive material, and by plating on the metallic silver portion, it is possible to obtain a substantially uniform film with a conductive film without unevenness. it can.
According to a thirteenth aspect of the present invention, there is provided a photosensitive material developing and processing apparatus that transports a strip-shaped photosensitive material having a silver salt-containing layer on a support film into a developing solution to develop the strip-shaped photosensitive material. A photosensitive material development processing apparatus that changes the direction of the belt-shaped photosensitive material by a photosensitive material direction changing member arranged in a direction intersecting with the conveying direction of the material, wherein the photosensitive material direction changing member is formed on the surface along the longitudinal direction. The developer is discharged from a plurality of formed slit-shaped discharge ports, and the belt-shaped photosensitive material is floated from the photosensitive material direction changing member to change the direction in a non-contact manner. A regulating plate provided at both ends in the width direction for regulating a discharge amount of the developer discharged from both ends in the width direction of the strip-shaped photosensitive material and adjusting a distance between the strip-shaped photosensitive material and the photosensitive material direction changing member; Comprising the photosensitive material method Spacing of the discharge outlet of the upstream side and downstream side of the belt-shaped photosensitive member in the conversion member, and being smaller than the distance between the outlet of the conveying direction intermediate portion of the belt-shaped photosensitive member.

  As described above, according to the present invention, it is possible to suppress the occurrence of silver stains and scratches on the belt-shaped photosensitive material and to suppress the occurrence of film peeling. For this reason, it is possible to obtain a substantially uniform developed silver image (metal silver portion) having no unevenness in the width direction on the support film.

  Embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is provided to the member which has the substantially same function throughout all the drawings, and the overlapping description may be abbreviate | omitted.

  FIG. 1 shows a development processing apparatus to which the photosensitive material development processing method according to the present invention is applied. This development processing apparatus is an apparatus for developing, fixing, and washing a photosensitive web as a strip-shaped photosensitive material that has been exposed. As shown in FIG. 1, in the development processing apparatus 10, a photosensitive web 12 having a silver salt-containing layer on a belt-like support film is wound around the unwinding shaft 14 in a roller shape with the silver salt-containing layer facing up. ing. The photosensitive web 12 has been subjected to a desired fine line pattern exposure by an exposure apparatus (not shown).

  On the downstream side in the transport direction of the photosensitive web 12 fed from the unwinding shaft 14, a developing processing tank 16 storing a developing solution, a fixing tank 18 storing a fixing solution, and pure water (cleaning solution) are stored. And a water washing tank 20 are provided. Hot air generators 22A and 22B for drying both surfaces of the photosensitive web 12 are arranged on the downstream side in the transport direction of the photosensitive web 12 from the water washing tank 20, and further, on the downstream side of the photosensitive web 12 in the transport direction. A take-up shaft 24 is provided for taking up the wire.

  The photosensitive web 12 sent out from the unwinding shaft 14 is conveyed to the development processing tank 16 through a support roll 26 arranged at the upper part of the development processing tank 16. A submerged turn bar 28 as a photosensitive material direction changing member is disposed in the development processing tank 16, and the photosensitive web 12 is supported by the submerged turn bar 28 so that the silver salt-containing layer is not in contact with the submerged turn bar 28. Is done. Air knives 30 </ b> A and 30 </ b> B are disposed at the outlet of the development processing tank 16 on the downstream side in the transport direction of the photosensitive web 12 so as to face both surfaces of the photosensitive web 12. The web 12 has two support rolls disposed on the upper part of the developing tank 16 and the upper part of the fixing tank 18 by the developer being scraped off by the air blown from the air knives 30A and 30B at the outlet of the developing tank 16. 26 is introduced into the next fixing tank 18.

  Thereafter, similar to the development processing tank 16, the photosensitive web 12 is redirected by the submerged turn bar 28 B in the fixing tank 18 in a non-contact state with the silver salt-containing layer, and at the outlet of the fixing tank 18. The fixing solution is scraped off by the air knives 30A and 30B arranged to face both sides of the sheet and introduced into the next washing tank 20 through the two support rolls 26. Further, the photosensitive web 12 is turned by the submerged turn bar 28C in the washing tank 20 in a non-contact state with the silver salt-containing layer, and air knives 30A and 30B arranged on both surfaces of the photosensitive web 12 at the outlet of the washing tank 20. The pure water is scraped off and conveyed to the hot air generators 22 </ b> A and 22 </ b> B through the support roll 26 arranged at the upper part of the washing tank 20. Then, both surfaces of the photosensitive web 12 are dried by the hot air generated from the hot air generators 22A and 22B, and the photosensitive web 12 is wound around the winding shaft 24 through the support roll 26. Although not shown, this series of development processing apparatus 10 has a torque adjusting mechanism on the unwinding shaft 14 so that the photosensitive web 12 can be conveyed with a constant tension.

  In such a development processing apparatus 10, the photosensitive web 12 is conveyed through the development processing tank 16, the fixing tank 18, and the washing tank 20 by a plurality of support rolls 26 and submerged turn bars 28 </ b> A, 28 </ b> B, 28 </ b> C, thereby developing Each process of fixing and washing is performed, and the photosensitive web 12 is further dried to obtain a photosensitive web 12 (conductive material) on which a fine-line mesh-shaped developed silver image (metal silver portion) is formed. The photosensitive web 12 obtained by being processed by the development processing apparatus 10 can be suitably used as a translucent electromagnetic wave shielding film. For example, a conductive film is formed on the developed silver image (metal silver portion) of a fine line mesh developed by processing the photosensitive web 12 by the development processing apparatus 10 by plating (for example, Cu plating), thereby transmitting the transparent film. A photoelectromagnetic wave shielding film (film with conductive film) can be produced.

  Here, development processing techniques used for silver salt photographic films, printing plate-making films, photomask emulsion masks, and the like can be applied to the development, fixing, and washing processes. A developing solution, a fixing solution, and a cleaning solution can be appropriately applied according to these. For example, the developer is not particularly limited, but PQ developer, MQ developer, MAA developer and the like can also be used. For example, CN-16, CR-56, CP45X, FD-3 manufactured by FUJIFILM Corporation. Developers such as C-41, E-6, RA-4, D-19, and D-72 manufactured by KODAK, Papitol, or a developer included in the kit, and a lith developer such as D-85 Can be used. The fixing process is performed for the purpose of removing and stabilizing the silver salt in the unexposed part.

  In addition, taking out and bringing in each processing solution from the processing tanks 16, the fixing tank 18, and the water washing tank 20 of the development processing apparatus 10 increases the replenishment amount and promotes the dissolved physical development in the next processing tank. Deterioration of the processing liquid occurs, which is not preferable. Moreover, the dripping of the processing liquid in the crossover portion from each processing tank to the next processing tank causes processing unevenness and drying unevenness, and deteriorates the yield. In the development processing apparatus 10 of the present embodiment, the air knives 30A and 30B are disposed at the exits of the development processing tank 16, the fixing tank 18 and the washing tank 20 so as to face both surfaces of the photosensitive web 12, and therefore the photosensitive web. The treatment liquid adhering to the front and back surfaces of 12 can be removed.

  The arrangement of the air knives 30A and 30B is preferably as soon as possible after the photosensitive web 12 comes out of the processing liquid surface of each processing tank. However, since the processing liquid surface is disturbed and scattered by the pressure of air, the distance is prevented from being scattered and the photosensitive film is exposed. It is preferable to provide a lid 31 for the entire processing tank except for the inflow portion and outflow portion of the web 12.

  Further, since the surface having the developed silver image of the photosensitive web 12 is a soft film in the wet state, the amount of air supplied to the air knives 30A and 30B is reduced. In order to avoid liquid fatigue and dissolution physical development, the stop bath is preferably provided after the development processing tank 16.

  2 shows a cross-sectional view along the longitudinal direction of the submerged turn bar 28A arranged in the developing tank 16, and FIG. 3 shows an exploded perspective view of the submerged turn bar 28A. . FIG. 4 shows a side view of the submerged turn bar 28A, a cross-sectional view in a direction orthogonal to the longitudinal direction, and the like. The submerged turn bar 28B disposed in the fixing tank 18 and the submerged turn bar 28C disposed in the washing tank 20 are different in that the liquid to be discharged is a fixing liquid or pure water instead of the developer. Are the same, and here, the submerged turn bar 28A will be described as an example.

  As shown in FIG. 2, the submerged turn bar 28 </ b> A is disposed in the developer 32 stored in the development processing tank 16 in a direction substantially orthogonal to the conveyance direction of the photosensitive web 12. As shown in FIGS. 2 to 4, the submerged turn bar 28 </ b> A includes a first cylindrical body 34 disposed outside and a second cylindrical body 38 disposed inside the first cylindrical body 34. ing. The first cylindrical body 34 is provided with a plurality of slit-shaped discharge ports 36 for discharging the developer along the longitudinal direction on the surface. The second cylindrical body 38 is provided with a plurality of jet outlets 40 for jetting the developer on the surface. Both ends of the first cylindrical body 34 are closed with an annular body 35, and a second cylindrical body 38 is inserted into an opening at the center of the annular body 35.

  The first cylindrical body 34 is intermediate in the conveyance direction of the photosensitive web 12 than the interval (circumferential interval) between the discharge ports 36 in the vicinity of the inlet A on the upstream side in the conveyance direction of the photosensitive web 12 and in the vicinity of the outlet B on the downstream side in the conveyance direction. The intervals between the discharge ports 36 in the portion C are formed large, and the discharge ports 36 extend from the intermediate portion C in the transport direction of the photosensitive web 12 toward the vicinity of the inlet A on the upstream side in the transport direction and the vicinity of the outlet B on the downstream side in the transport direction. The interval is formed so as to be gradually reduced. In addition, the first cylindrical body 34 is provided with a wall portion 34A that does not have the discharge port 36 in a portion (the upper portion in FIGS. 3 and 4B) where the photosensitive web 12 does not face during conveyance. By discharging the developer from the plurality of slit-like discharge ports 36 of the first cylindrical body 34, the photosensitive web 12 is floated from the surface of the first cylindrical body 34 and is changed in a non-contact manner. Yes.

  At this time, the interval between the discharge ports 36 is gradually reduced from the intermediate portion C in the conveyance direction of the photosensitive web 12 toward the vicinity of the inlet A on the upstream side in the conveyance direction and the vicinity of the outlet B on the downstream side in the conveyance direction. Therefore, the developer is discharged from the discharge ports 36 near the entrance A and the exit B, which are smaller in distance than the intermediate portion C in the transport direction. The developer discharged from the discharge port 36 of the first cylindrical body 34 is discharged from both ends in the width direction of the photosensitive web 12 and the four directions of the inlet A and the outlet B. Generally, in the vicinity of the inlet A of the photosensitive web 12. In the vicinity of the outlet B, the photosensitive web 12 and the first cylindrical body 34 tend to come into contact with each other. In the present embodiment, the developer is discharged from the discharge port 36 near the entrance A and the exit B of the photosensitive web 12 from the discharge port 36 having a smaller interval than the intermediate portion C in the transport direction. Sufficient developer is discharged in the vicinity of B, and the contact between the belt-shaped photosensitive material and the first cylindrical body is suppressed.

  A flange-shaped regulating plate that projects radially from the surface of the first cylindrical body 34 at both ends in the longitudinal direction of the first cylindrical body 34 and regulates the discharge amount of the developer discharged from both ends in the width direction of the photosensitive web 12. 42 is provided. The restricting plates 42 are arranged outside the both ends of the photosensitive web 12 in the width direction, that is, at intervals wider than the width of the photosensitive web 12 in the width direction. In the present embodiment, the photosensitive web 12 is provided at a position about 10 mm away from both end edges. The spacing between the first cylindrical body 34 and the photosensitive web 12 is adjusted by regulating the discharge amount of the developer discharged from both ends of the photosensitive web 12 in the width direction by the regulating plate 42. The height of the regulating plate 42 in the radial direction is set to be higher than the distance between the first cylindrical body 34 and the photosensitive web 12 when the photosensitive web 12 is lifted by the discharge of the developer from the discharge port 36. Yes.

  The developer ejected from the discharge port 36 of the first cylindrical body 34 is discharged from the four directions of the width direction of the photosensitive web 12 and the inlet A and the outlet B in the conveyance direction of the photosensitive web 12. For this reason, the discharge of the developer from both ends in the width direction of the photosensitive web 12 tends to cause a difference in the residence time of the developer at the central portion in the width direction of the photosensitive web 12 and both ends in the width direction. There is a difference in the renewal of the solution, and as a result, a difference occurs in the development progress of the silver salt, and the developed silver image tends to be uneven in the width direction. In the present embodiment, the pressure between the first cylindrical body 34 and the photosensitive web 12 is increased by disposing the regulating plate 42 and regulating the discharge of the developer from both ends of the photosensitive web 12 in the width direction. The difference in the residence time of the developer at the central portion in the width direction and the end portion in the width direction of the photosensitive web 12 can be reduced.

  As shown in FIG. 4C, the discharge port 36 of the first cylindrical body 34 is formed in a tapered shape so as to be narrow inside the first cylindrical body 34 and wide outside the first cylindrical body 34. Yes. As a result, an increase in the flow pressure of the developer discharged from the discharge port 36 is suppressed, and the occurrence of film peeling of the photosensitive web 12 can be suppressed. In addition, the discharge port 36 is good also as substantially the same width | variety by the inner side and the outer side of the 1st cylindrical body 34, without forming in a taper shape like this embodiment.

  The smaller the opening ratio of the discharge port 36 of the first cylindrical body 34 is, the smaller the amount of developer discharged, which is advantageous for maintaining the pressure between the first cylindrical body 34 and the photosensitive web 12 and floating the photosensitive web 12. Therefore, the slit width of the discharge port 36 is preferably 0.3 to 0.5 mm (the width of the inner narrow portion), and the aperture ratio is preferably 0.6 to 2%. Further, the aperture ratio is more preferably 0.8 to 1%. Here, the aperture ratio is such that when the slit width of the discharge port 36 is L (mm) and the diameter of the first cylindrical body 34 is D (mm),

  Aperture ratio (%) = L × number of slits / πD

Is required. By setting the aperture ratio of the discharge ports 36 to 0.6 to 2%, the amount of the developer discharged from the plurality of discharge ports 36 can be adjusted appropriately. In the case of the slit shape, it is generally said that the distribution (bias) tends to occur in the liquid ejection flow rate in the width direction, but the slit width of the discharge port 36 is 0.3 to 0.5 mm. By narrowing the flow rate to be narrow, it is possible to eliminate the flow rate distribution inside the cylindrical body and obtain uniform levitation in the width direction.

  Guide rollers 44 are disposed at a predetermined distance from the surface of the first cylindrical body 34 at the upstream entrance A and the downstream exit B of the photosensitive web 12 in the transport direction. Support members 46 are disposed at both ends in the longitudinal direction of the first cylindrical body 34, and the shaft portion 44 </ b> A of the guide roller 44 is rotatably supported by the support member 46. The photosensitive roller 12 is guided in the transport direction by the guide roller 44, and the photosensitive web 12 is prevented from contacting the first cylindrical body 34 near the entrance A and the exit B.

  The first cylindrical body 34 is a hollow cylindrical body in the present embodiment, but may be an ellipse or a semi-cylinder.

  The second cylindrical body 38 is inserted into the first cylindrical body 34 over the entire width. A tubular introduction portion 48 for introducing a developer is connected to one end 38A in the longitudinal direction of the second cylindrical body 38, and the other end 38B in the longitudinal direction is closed by a lid portion 38C. An annular mounting plate 70 is provided around the second cylindrical body 38 on the center side of the tubular introduction portion 48 at one end 38A of the second cylindrical body 38, and the mounting plate 70 is connected to the first cylinder by screws 72. It is attached to the body 34. The second cylindrical body 38 is provided with a plurality of circular jet nozzles 40 along the longitudinal direction. The plurality of jet nozzles 40 are formed such that the diameter on the other end 38B side in the longitudinal direction is small and the diameter gradually increases from the other end 38B side toward the one end 38A side in the longitudinal direction. Further, the plurality of jet nozzles 40 are arranged so that the centers thereof are at substantially equal intervals. The sum of the diameters of the ejection ports 40 is equal to the inner diameter of the second cylindrical body 38, and the diameter is determined by pressure loss calculation and experiment. In the present embodiment, as shown in FIG. 5, the interval between the centers of the ejection ports 40 is about 45 mm, the inner diameter of the second cylindrical body 38 is about 25 mm, and the width direction of the second cylindrical body 38 The length is set to about 800 mm. Further, the diameter of the jet port 40A closest to the introduction side on the one end 38A side in the longitudinal direction of the second cylindrical body 38 is set to about 6.8 mm, and the end of the second cylindrical body 38 on the other end 38B side in the longitudinal direction is the most terminal. The diameter of the jet outlet 40B close to the side is set to about 5.4 mm.

  In the second cylindrical body 38, the diameters of the plurality of jet nozzles 40 are formed so as to gradually increase from the other end 38B side in the longitudinal direction toward the one end 38A side, and the centers of the jet nozzles 40 are substantially equally spaced. By disposing, the developer discharged from the plurality of discharge ports 36 of the first cylindrical body 34 becomes substantially uniform in the width direction. When the diameters of the plurality of jet nozzles of the second cylindrical body 38 are the same from the one end 38A side to the other end 38B side in the longitudinal direction, or the second cylindrical body 38 is disposed only at the inlet to the first cylindrical body 34. In this case, the other end 38B side (terminal side) of the first cylindrical body has a large static pressure, the developer discharge amount from the discharge port 36 increases, and the developer one end 38A side (introduction side) is the developer solution. The discharge amount is reduced.

  Moreover, as shown in FIG. 4B, the plurality of jet nozzles 40 are located at positions facing the wall portion 34A not having the discharge port 36 of the first cylindrical body 34 (in FIGS. 3 and 4B). At the top). By providing the plurality of jet nozzles 40 at positions facing the wall portion 34A of the first cylindrical body 34, the developer jetted from the plurality of jet nozzles 40 hits the wall portion 34A of the first cylindrical body 34, thereby suppressing dynamic pressure. At the same time, the developer flowing on both sides of the wall 34A is discharged from the discharge port 36 of the first cylindrical body 34. Accordingly, a short path or the like in which the developer ejected from the plurality of ejection ports 40 is directly ejected from the ejection port 36 of the first cylindrical body 34 is suppressed.

  As shown in FIG. 2, developer suction ports 50 </ b> A and 50 </ b> B are provided in the upper portion of the development processing tank 16, and a pipe 52 connected to each of the developer suction ports 50 </ b> A and 50 </ b> B is a single pipe 53. Thus, the pipe 53 is provided with a pump 54, an automatic constant flow valve (flow control valve) 56, a flow meter 58, and a plate heat exchanger 60. Further, the downstream end portion of the pipe 53 is connected to the tubular introduction portion 48. Here, the automatic constant flow valve 56 is installed for the purpose of eliminating flow fluctuation due to pressure fluctuation, the flow meter 58 is installed for the purpose of managing the flow, and the plate heat exchanger 60 is installed to keep the temperature in the tank substantially constant. Has been.

  In addition to the development processing tank 16, a replenishing tank 62 for storing a replenishing developer is provided. A pipe 64 is connected to the replenishing tank 62, and a pump 66 is provided in the pipe 64. The downstream side of the pipe 64 is branched into two pipes 65 and led to the vicinity of the developer suction ports 50 </ b> A and 50 </ b> B at the top of the development processing tank 16. In the development processing of the photosensitive web 12, it is important to replenish the developer according to the development processing amount of the photosensitive web 12. In this embodiment, the developer is supplied to the submerged turn bar 28 </ b> A by circulating the developer 32 in the developing tank 16. By replenishing the developer on this circulation path, the developer in the developing tank 16 is supplied. The concentration of the developer 32 can be maintained substantially uniform. Further, the developer to be replenished is dropped in the vicinity of the developer suction ports 50A and 50B on the circulation path, whereby the developer is mixed in the turbulent flow pipes 52 and 53, and is mixed into the second cylindrical body 38 inside the submerged turn bar 28A. It is supplied almost uniformly in the width direction. Further, after the developer is discharged from the plurality of discharge ports 36 of the first cylindrical body 34, the developer is discharged from the inlet A and outlet B directions of the photosensitive web 12 and from both ends in the width direction of the photosensitive web 12, and the development processing tank 16. Homogenized by internal flow and diffusion.

  In such a submerged turn bar 28A, the developer is supplied so that the amount of developer discharged per meter is 50 to 200 l / min (liters / minute) from the plurality of slit-like discharge ports 36 of the first cylindrical body 34. Is set to be discharged. The developer discharge amount per meter is more preferably 70 to 150 l / min (liter / minute), and further preferably 80 to 100 l / min (liter / minute).

  Further, the tension when the photosensitive web 12 is conveyed is preferably 3 N / m or more and 150 N / m or less. When the tension was less than 3 N / m, the support roll 26 did not rotate and the film was damaged. On the other hand, if it exceeds 150 N / m, wrinkles are generated on the photosensitive web 12, and there is a problem that the film comes into contact with the surface of the turnbar in the liquid and damages the developed silver image.

  The temperature of the developer in the development processing apparatus 10 depends on the film strength of the silver salt-containing layer of the photosensitive web 12 and the development processing speed, but is preferably in the range of 16 ° C to 40 ° C, more preferably in the range of 20 ° C to 36 ° C. preferable.

  Next, the operation of the submerged turn bar 28A to which the development processing method of the present embodiment is applied will be described.

  The supply of the developer 32 to the submerged turn bar 28A is sent to the pump 54 via the pipes 52 and 53 from the developer suction ports 50A and 50B provided in the upper part of the development tank 16, and the automatic constant flow valve 56 is supplied. Then, it is led from the tubular introduction part 48 to the second cylindrical body 38 via the flow meter 58 and the plate heat exchanger 60. The second cylindrical body 38 is formed such that the diameters of the plurality of jet nozzles 40 gradually increase from the other end 38B side in the longitudinal direction toward the one end 38A side. It is ejected almost uniformly in the width direction inside one cylindrical body 34. At that time, as shown in FIG. 4B, the developer is ejected from the plurality of ejection ports 40 of the second cylindrical body 38 in the direction of the wall portion 34 </ b> A (the arrow direction) inside the first cylindrical body 34, Further, the developer flowing on both sides of the wall portion 34A of the first cylindrical body 34 is pumped from the plurality of slit-like discharge ports 36 of the first cylindrical body 34 by the pump 54, and between the first cylindrical body 34 and the photosensitive web 12. Discharged. The developer discharged from the plurality of discharge ports 36 is discharged from the inlet A and the outlet B of the photosensitive web 12 near the guide roller 44 and from both ends in the width direction of the first cylindrical body 34 in the width direction. The Due to the developer discharged from the plurality of discharge ports 36, the photosensitive web 12 is lifted from the first cylindrical body 34, conveyed in a non-contact manner with the first cylindrical body 34, and changed in direction.

  Further, the developer (replenisher) to be replenished from the replenishing tank 62 is sent to the pump 66 through the pipe 64, and dropped through the pipe 65 near the developer suction ports 50 </ b> A and 50 </ b> B of the development processing tank 16. The The dropped developer (replenisher) is completely mixed by the turbulent flow in the pipes 52 and 53 in the circulation path, and in the width direction from the plurality of jets 40 of the second cylinder 38 to the inside of the first cylinder 34. Almost uniformly ejected.

  In such a submerged turn bar 28A, the developer is discharged from the plurality of slit-like discharge ports 36 of the first cylindrical body 34 so that the discharge amount of the developer per meter is 50 to 200 l / min. By setting, the photosensitive web 12 floats almost uniformly in the width direction from the surface of the submerged turn bar 28A (first cylindrical body 34), and the surface of the photosensitive web 12 and the submerged turn bar 28A is maintained at a predetermined interval. The For this reason, the occurrence of silver stains and scratches on the photosensitive web 12 due to contact between the surface of the submerged turn bar 28A and the photosensitive web 12 is suppressed, and film peeling due to a large discharge flow of the developer (silver salt coating film). And development silver image peeling) are suppressed. For this reason, a substantially uniform developed silver image (metal silver portion) having no unevenness in the width direction of the photosensitive web 12 can be obtained.

  On the other hand, when the discharge amount of the developer per meter of the submerged turn bar 28A is smaller than 50 l / min, the photosensitive web 12 is not sufficiently lifted from the surface of the submerged turn bar 28A. The contact between the surface and the photosensitive web 12 may cause silver stains or scratches on the photosensitive web 12. On the other hand, when the discharge amount of the developer per meter of the submerged turn bar 28A is larger than 200 l / min, the discharge flow of the developer is increased, and there is a possibility that film peeling or the like occurs. Although the frequency of film peeling varies depending on the type of the photosensitive web 12, it is likely to occur when, for example, a photosensitive web that has not been hardened (uncured photosensitive web). In the present invention, the developing process can be efficiently performed even on a photosensitive web that has not been hardened by adjusting the discharge amount of the developing solution using the submerged turn bar having the above-described configuration. In the present invention, a film hardened by adding a hardener to the silver salt photosensitive layer to enhance the gelatin film quality is hardened, and a film having no hardener added is hardened. There is nothing.

  Further, the discharge amount of the developer discharged from both ends in the width direction of the photosensitive web 12 at both ends of the submerged turn bar 28A is regulated by the regulating plate 42, thereby adjusting the interval between the photosensitive web 12 and the submerged turn bar 28A. . As a result, the distance between the photosensitive web 12 and the submerged turn bar 28A becomes substantially uniform in the width direction, and the occurrence of silver stains and scratches on the photosensitive web 12 due to the contact between the surface of the submerged turn bar 28A and the photosensitive web 12 is suppressed. In addition, even when the developer discharge flow is small, the distance between the photosensitive web 12 and the submerged turn bar 28A is kept constant.

  Further, by setting the opening ratio of the discharge port 36 of the first cylindrical body 34 to 0.6-2%, the amount of the developer discharged from the plurality of discharge ports 36 is appropriately adjusted, and the photosensitive web 12 and The spacing with the submerged turn bar 28A is substantially uniform. For this reason, generation | occurrence | production of the silver stain | pollution | contamination of the photosensitive web 12, a damage | wound, film | membrane peeling etc. is suppressed. On the other hand, when the opening ratio of the discharge port 36 is smaller than 0.6%, the amount of the developer discharged from the discharge port 36 is insufficient, and the surface of the submerged turn bar 28A and the photosensitive web 12 are in contact with each other. There is a possibility that silver stains and scratches of the photosensitive web 12 may occur. Further, if the opening ratio of the discharge port 36 is larger than 2%, it is necessary to increase the discharge flow of the developer, so that film peeling or the like may occur.

  The photosensitive web 12 obtained by the development processing by the development processing apparatus 10 of the present invention can be suitably used for a translucent electromagnetic wave shielding film, and a developed silver image (metal silver portion) of the photosensitive web 12 is plated. By forming the conductive film, a substantially uniform translucent electromagnetic wave shielding film (film with conductive film) without unevenness can be obtained.

  Next, the photosensitive web 12 will be described. The photosensitive web 12 is, for example, a long and wide flexible substrate made of a photosensitive material in which a silver salt-containing layer containing a silver salt (for example, silver halide) is provided on a light-transmitting support (support film). Further, a protective layer may be provided on the silver salt-containing layer, and this protective layer means a layer made of a binder such as gelatin or a high molecular polymer, and exhibits an effect of preventing scratches and improving mechanical properties. In order to do so, it is formed on the silver salt-containing layer. It is preferable that the thickness of a protective layer is 0.02-20 micrometers, More preferably, it is 0.1-10 micrometers, More preferably, it is 0.3-3 micrometers.

  The composition of these silver salt-containing layers and protective layers includes silver halide emulsion layers (silver salt-containing layers) and protective layers applied to silver salt photographic films, photographic paper, printing plate-making films, emulsion masks for photomasks, etc. Layers can be applied as appropriate.

  In particular, as the photosensitive web 12 (photosensitive material), a silver salt photographic film (silver salt photosensitive material) is preferable, and a black and white silver salt photographic film (black and white silver salt photosensitive material) is the best. The silver salt applied to the silver salt-containing layer is most preferably silver halide.

  On the other hand, as the light-transmitting support, a single-layer plastic film or a multilayer film in which two or more layers are combined can be applied. Examples of the raw material for the plastic film include polyesters such as polyethylene terephthalate (PET) and polyethylene naphthalate; polyolefins such as polyethylene (PE), polypropylene (PP), polystyrene, and EVA; polyvinyl chloride, polyvinylidene chloride, and the like. In addition, use polyetheretherketone (PEEK), polysulfone (PSF), polyethersulfone (PES), polycarbonate (PC), polyamide, polyimide, acrylic resin, triacetylcellulose (TAC), etc. Can do.

  Among these, from the viewpoint of transparency, heat resistance, ease of handling, and cost, the plastic film as the support is a polyethylene terephthalate film or cellulose triacetate film that is usually applied to silver salt photographic films (silver salt photosensitive materials). In addition, a polyimide film is preferable. Particularly preferred is a polyethylene terephthalate film.

  Moreover, since the electromagnetic shielding material for displays requires transparency, it is desirable that the support has high transparency. In this case, the total visible light transmittance of the light transmissive support is preferably 70 to 100%, more preferably 85 to 100%, and particularly preferably 90 to 100%.

  The width of the photosensitive web 12 is, for example, 50 cm or more, and the thickness is preferably 50 to 200 μm.

  Hereinafter, the present invention will be described more specifically based on examples. The present invention is not limited to these examples. The developed silver image film obtained was evaluated by the following method.

〔Evaluation method〕
<Developed silver unevenness>
The variation in developed silver in the width direction was compared with the variation in silver amount of the silver salt-containing layer before development processing by a silver amount analyzer.

<Film surface properties>
The film was peeled off by visual inspection with transmitted light and reflected light, 10 times loupe and 50 times optical microscope, and it was judged whether there was any fouling.

[Production Example 1]
(Preparation of silver salt-containing photosensitive material coated sample)
An emulsion layer coating solution prepared using a silver iodochlorobromide emulsion having an average grain size of 0.22 μm containing 70 mol% of silver chloride and 0.08 mol% of silver iodide and having a coefficient of variation of 9% is obtained by using polyethylene terephthalate (PET ) A coating sample was prepared by coating Ag 7.8 g / m 2 and gelatin 0.94 g / m 2, and then drying the coating.

(exposure)
Next, a grid-like photomask line / space = 5 μm / 195 μm (pitch 200 μm) space that can give developed silver of line / space = 5 μm / 195 μm to the dried coating film is passed through a photomask. It exposed using the parallel light which used the high pressure mercury lamp as the light source.

[Example 1]
Using the development processing apparatus 10 shown in FIG. 1, the exposed film (photosensitive web 12) obtained in Production Example 1 was developed. In the development processing apparatus 10, the first tank is the development processing tank 16, and about 100 liters of developer is stored in the development processing tank 16 having a width of 0.9 m, a length of 0.25 m, and a height of 0.5 m. The temperature is kept at 20 ° C. The second tank is a fixing tank 18 in which about 200 liters of fixing solution is stored in a fixing tank 18 having a width of 0.9 m, a length of 0.25 m, and a height of 1 m, and the temperature is kept at 20 ° C. The third tank is a washing tank 20, in which approximately 200 liters of pure water is stored in a tank of width 0.9 m × length 0.25 m × height 1 m, the temperature is kept at 20 ° C., and every minute 2 liters of pure water is supplied and overflows from the rinsing tank 20.

  In the processing tanks of the developing tank 16, the fixing tank 18, and the water washing tank 20, the submerged turn bars 28A, 28B, and 28C shown in FIG. 2 (hereinafter referred to as A and B when it is not necessary to distinguish the 28A, 28B, and 28C). , C is omitted), and the in-liquid turn bar 28 discharges the processing liquid from the plurality of discharge ports 36 substantially uniformly in the width direction so that the processing liquid in the processing tank becomes substantially uniform. Treatment liquid is circulated. Further, in the submerged turn bar 28 </ b> A in the developing tank 16, the developer is discharged so that the amount of developer discharged per meter is 50 to 200 l / min from the plurality of slit-like discharge ports 36 of the first cylindrical body 34. Was set to be discharged. Further, the amount of the developer discharged from both ends of the film (photosensitive web 12) is regulated by the regulation plates 42 at both ends of the submerged turn bar 28A, and the opening ratio of the discharge port 36 is set to 0.6-2%. did.

  The film (photosensitive web 12) was conveyed at a speed of 1.0 m / min by the development processing apparatus 10 shown in FIG. The residence time in the developing tank 16 is 60 seconds in the liquid, the residence time in the fixing tank 18 and the water washing tank 20 is 2 minutes in the liquid, and the processing liquid is supplied to the air knives 30A and 30B at the outlets of the processing tanks. Then, 50 ° C. hot air was sent from the hot air generators 22A and 22B and dried to obtain a desired developed silver image film. The evaluation results of the film A-1 subjected to this development treatment are shown in Table 1 and FIG. Further, FIG. 8 shows the variation in Ag amount of the film (film A) before the development processing.

[Comparative Example 1]
Using the development processing apparatus 10 shown in FIG. 1, the processing liquid is introduced from one end side (one side) of the submerged turn bar 28 without providing the second cylindrical body 38 inside the submerged turn bar 28 shown in FIG. The results of film A-2 obtained by developing the film (photosensitive web 12) under the conditions of Example 1 are shown in Table 1 and FIG.

[Comparative Example 2]
Next, the developing device 10 shown in FIG. 1 was used, and the first cylindrical body 100 shown in FIG. 9 was provided in place of the first cylindrical body 34 arranged on the submerged turn bar 28 shown in FIG. The first cylindrical body 100 has a plurality of rectangular discharge holes 102 arranged on a surface in a staggered pattern. The structure of the other submerged turn bar 28 is the same, and Table 1 shows the results of film A-3 obtained by developing the film (photosensitive web 12) under the conditions of Example 1.

  As shown in Table 1 and FIG. 6, it can be seen that the developed silver image film obtained by the development processing apparatus 10 of the present invention has no scratches, stains or unevenness on the surface, and variation in the developed silver amount in the width direction is almost uniform. It was. As shown in Table 1 and FIG. 7, in Comparative Example 1, the processing liquid to the submerged turn bar 28 was supplied from one end (one side), but the discharge amount of the processing liquid from the submerged turn bar 28 was from the processing liquid supply side. However, since the levitation of the film was different on the left and right sides in the width direction, traces of rubbing against the film surface were observed, and the balance of the silver amount was also deteriorated. Moreover, as shown in Table 1, although the 1st cylindrical body 100 was used in the comparative example 2, the light and dark stripes of equal intervals were observed over the full width of the film.

[Examples 2 to 6]
Next, an uncured film B and a film C in which a hardener is added at 1% per gelatin to strengthen the gelatin film are used to develop the first cylindrical body 34 from the first cylindrical body 34 using the development processing apparatus 10 shown in FIG. Development processing was performed by changing the discharge flow rate of the developer.

As shown in Table 2, the type of film used and the discharge flow rate of the developer were evaluated under different conditions as in Examples 2 to 6, Comparative Example 3, and Comparative Example 4.
Here, the uncured film B is a film which is the film shown in Production Example 1 and which is not gelatin-cured (film Nos. B-1 to B-6 in Table 2). Film C is a sample obtained by adding 1% per gelatin of a hardener as a gelatin hardened film shown in Production Example 1 and applying and drying on PET (film No. C-1 in Table 2). ).

  The results of evaluating the film properties are shown in Table 2. As shown in Comparative Example 3, at a discharge flow rate of 40 L / min · m, the gap between the first cylindrical body 34 and the film B-1 becomes narrow, and the film B-1 may come into contact with the first cylindrical body 34, It was observed that the developer became cloudy due to peeling of the coating film, and the dried film B-1 had scratches and no image.

  Further, as shown in Examples 2 to 5, the gap between the first cylindrical body 34 and the films B-2 to B-5 is a width in the range of the discharge flow rate 50 L / min · m to 200 L / min · m. It was kept almost constant in the direction and transported stably. The dried films B-2 to B-5 were free from streaks and scratches and were good.

  Further, as shown in Comparative Example 4, at a discharge flow rate of 250 L / min · m, the gap between the first cylindrical body 34 and the film B-6 was secured and stably conveyed, but the film B-6 was jetted on the film B-6. It was observed that the coating film was peeled off and the developer became cloudy. Furthermore, the film B-6 after drying had film peeling, and the image was uneven.

  Next, as shown in Example 6, development was performed using film C-1 having a coating film strengthened with a hardener at a discharge flow rate of 200 L / min · m. After drying without turbidity of the developer, The film C-1 was also good.

  In addition, although this embodiment demonstrated the apparatus and manufacturing method which manufacture a light-transmitting electromagnetic wave shielding material, it is not restricted to this, For example, it has a fine line pattern which consists of fine electroconductive metal parts, such as other industrial goods The present invention can also be applied as a manufacturing apparatus and a manufacturing method of a light transmissive conductive material.

1 is a schematic configuration diagram illustrating a development processing apparatus to which a photosensitive material development processing method according to an embodiment of the present invention is applied. It is a block diagram shown in the state cut | disconnected along the longitudinal direction of the submerged turn bar used with the image development processing apparatus shown in FIG. It is a disassembled perspective view which shows the submerged turn bar used with the image development processing apparatus shown in FIG. FIG. 2 is a side view showing a submerged turn bar used in the development processing apparatus shown in FIG. 1, a configuration diagram showing a state cut in a direction perpendicular to the longitudinal direction of the submerged turn bar, and a partial enlarged view of a discharge port. It is a block diagram shown in the state cut | disconnected along the longitudinal direction of the 2nd cylindrical body used for a submerged turn bar. 4 is a graph showing variation in Ag amount in the width direction after development processing of the film of Example 1. It is a graph which shows the Ag amount dispersion | variation in the width direction after the development processing of the film of the comparative example 1. It is a graph which shows Ag amount dispersion | variation in the width direction of the film before image development processing. It is a side view which shows the 1st cylindrical body used for the submerged turn bar of the comparative example 2.

Explanation of symbols

10 Development processing device 12 Photosensitive web (band-shaped photosensitive material)
16 Development tank 18 Fixing tank 20 Flushing tank 26 Support roll 28A Submerged turn bar (photosensitive material direction changing member)
28B Submerged turn bar (photosensitive material direction changing member)
28C Submerged turn bar (photosensitive material direction changing member)
32 Developer 34 First cylinder 36 Discharge port 38 Second cylinder 38A One end 38B The other end 40 Jet port 42 Restriction plate 44 Guide roller

Claims (13)

A belt-shaped photosensitive material having a silver salt-containing layer on a support film is transported into a developing solution for development processing, and the direction of the photosensitive material is changed within the developer so as to intersect with the transport direction of the strip-shaped photosensitive material. A photosensitive material developing method for changing the direction of the belt-shaped photosensitive material with a member,
The developer is discharged from a plurality of slit-shaped discharge ports formed along the longitudinal direction on the surface of the photosensitive material direction changing member, and the belt-shaped photosensitive material is floated from the photosensitive material direction changing member and contactlessly formed. Change direction ,
The amount of the developer discharged from both ends in the width direction of the strip-shaped photosensitive material is regulated by regulating plates provided at both ends in the width direction of the photosensitive material direction-changing member, and the strip-shaped photosensitive material and the photosensitive material direction switching member Adjust the distance between
In the photosensitive material direction changing member, an interval between the discharge port on the upstream side in the transport direction of the belt-shaped photosensitive material and a downstream side in the transport direction is smaller than an interval between the discharge ports at an intermediate portion in the transport direction of the belt-shaped photosensitive material. A photosensitive material development processing method. 2. The photosensitive material developing method according to claim 1 , wherein the developing solution is discharged so that a discharging amount of the developing solution per 1 m is 50 to 150 l / min . 3. The photosensitive material development according to claim 1, wherein an opening ratio of the discharge port is set to 0.6 to 2% to adjust an amount of the developer discharged from the discharge port. 4. Processing method. 4. The photosensitive material developing method according to claim 1, wherein a tension when the belt-shaped photosensitive material is conveyed is 3 N / m or more and 150 N / m or less . 5. 5. The photosensitive material developing method according to claim 1, wherein the silver salt photosensitive layer of the belt-shaped photosensitive material contains gelatin . 6. The photosensitive material developing method according to claim 5 , wherein a hardener is added to the silver salt photosensitive layer of the belt-shaped photosensitive material to enhance the gelatin film quality . In the photosensitive material development processing method of any one of Claim 1- Claim 6,
The photosensitive material direction changing member is
A first cylindrical body that is arranged in a direction intersecting with the transport direction of the belt-shaped photosensitive material, and has a plurality of slit-like ejection ports that eject the developer along the longitudinal direction on the surface;
A second cylindrical body disposed inside the first cylindrical body and provided with a spout for ejecting the developer;
A photosensitive material developing method comprising the steps of : 8. The photosensitive material developer according to claim 7, wherein the discharge port is formed in a tapered shape that is narrow on the back side of the first cylindrical body and wide on the front side of the first cylindrical body. Processing method. The second cylindrical body includes an introduction portion for introducing the developer at one end in a longitudinal direction,
A plurality of ejection holes in which the ejection ports are formed in the longitudinal direction;
8. The photosensitive material developing method according to claim 7 , wherein the ejection hole provided on the other end side in the longitudinal direction is smaller than the ejection hole provided on the one end side in the longitudinal direction . The photosensitive material development according to claim 9 , wherein the ejection holes are formed so as to gradually increase from the other end side in the longitudinal direction of the second cylindrical body toward the one end side. Processing method. A step of developing the strip-shaped photosensitive material using the photosensitive material development processing method according to claim 1 to form a metallic silver portion,
The manufacturing method of the film with an electrically conductive film characterized by having. A step of developing the strip-shaped photosensitive material using the photosensitive material developing method according to claim 1 to form a metallic silver portion;
Forming a conductive film by plating on the metallic silver part;
The manufacturing method of the film with an electrically conductive film characterized by having . A belt-shaped photosensitive material having a silver salt-containing layer on a support film is transported into a developing solution for development processing, and the direction of the photosensitive material is changed within the developer so as to intersect with the transport direction of the strip-shaped photosensitive material. A photosensitive material developing apparatus for changing the direction of the belt-shaped photosensitive material with a member,
The photosensitive material direction changing member discharges the developer from a plurality of slit-like discharge ports formed on the surface along the longitudinal direction, and floats the belt-shaped photosensitive material from the photosensitive material direction changing member to be non-contacting. To change direction,
Provided at both ends in the width direction of the photosensitive material direction changing member, the discharge amount of the developer discharged from both ends in the width direction of the belt-shaped photosensitive material is regulated, and the belt-shaped photosensitive material and the photosensitive material direction changing member With a regulation plate that adjusts the interval,
In the photosensitive material direction changing member, an interval between the discharge port on the upstream side in the transport direction of the belt-shaped photosensitive material and a downstream side in the transport direction is smaller than an interval between the discharge ports at an intermediate portion in the transport direction of the belt-shaped photosensitive material. A photosensitive material development processing apparatus.