JPS6225752A - Method for feeding paper - Google Patents

Abstract

PURPOSE:To prevent trouble due to exposure shadows of paper powder by using a thermoplastic resin film containing voids as the support of a rolled photographic sensitive material. CONSTITUTION:The film containing voids is prepared by adding an inorganic compound, such as talc, into a thermoplastic resin, such as polyethylene or polypropylene, melting, extruding, and stretching them. At that time, a white filler, such as titanium white, to enhance reflectivity. This film containing the voids is used for the support of the rolled photographic sensitive material, and this rolled photographic sensitive material is filled in a dark box, then pulled out of the box, cut in a desired length, exposed, and developed to form an image, thus permitting trouble due to the paper powder to be reduced and abrasion of a cutter edge at the time of cutting by the use of the thermoplastic resin film containing voids for the support.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper feeding method for photographic light-sensitive materials in which exposure type failures due to paper dust are less likely to occur and cutter blades are less worn.

[Background of the Invention] Methods of making photographic prints using photosensitive materials include a method of making a print by enlarging a photographic negative onto photographic paper;
Methods of making prints by enlarging slides onto positive photographic paper, and methods of making prints of a desired size by enlarging or reducing large originals have been put into practical use.

In photo labs that produce large quantities of photographic prints, it is common to use a device called a printer to continuously expose and develop roll-shaped photographic materials suitable for mass production. On the other hand, when exposing small amounts of light using an enlarger, sheet photosensitive materials were used, but sheet photosensitive materials are more expensive than roll photosensitive materials, and from the viewpoint of labor saving, sheet photosensitive materials are used. 2. Description of the Related Art It has become common practice to cut and use photographic materials as needed. Further, Japanese Patent Application No. 73012/1984 proposes that a roll-shaped photographic material be incorporated into a part of an exposure device, cut into the size required for exposure (i.e., made into sheets), and exposed. .

It has been said that polyester film, polycarbonate film, polystyrene film, polypropylene film, cellulose acetate film, baryta paper, polyolefin laminated paper, etc. are suitable as substrates for photographic light-sensitive materials.

However, among these substrates, baryta paper and polyolefin laminated paper have hardened AM dirt, so if they are repeatedly cut with a cutter, etc., the fibers and sizing agents in the paper will be generated as paper dust, and in the worst case. It adheres to the cut photosensitive material, and if it is exposed imagewise as it is, it becomes a shadow and forms a dot, which impairs the quality of the print.

Furthermore, because it contains a large amount of inorganic material as a sizing agent, repeated cutting causes the cutter blade to wear out, resulting in poor sharpness and a tendency for paper dust to form on the surface.

On the other hand, if the base is made of a film made of thermosetting polymer such as polyester film or polystyrene film, the generation of paper dust can be significantly suppressed, but because the base is hard, the cutter blade is subject to severe wear and the blade is repeatedly cut. The disadvantage is that it cannot be cut unless it is replaced.

[Objective of the Invention 1] In view of the above-mentioned conventional problems, the present invention provides a method for cutting a photographic material wound into a roll into a sheet of a predetermined size, and then
In the image exposure method, high-quality images are obtained with fewer failures due to the exposure type caused by paper dust, and the cutter blade wears less during cutting, significantly extending the life of the cutter blade. The purpose of the present invention is to provide a paper feeding method for photographic materials.

[Structure of the Invention J The above object of the present invention is to form an image by imagewise exposing a photographic material wound into a roll having a photosensitive layer on a reflective support and then developing it. In a paper feeding method in which the rolled photographic material is cut into a desired length prior to exposure, the support is a reflective support made of a thermoplastic polymer containing voids. This is achieved by providing a photographic material.

[Specific Configuration 1 of the Invention The substrate used in the photographic light-sensitive material of the present invention is a film made of a thermoplastic polymer containing voids.

Thermoplastic polymers preferably used in the present invention include polyethylene, polypropylene, borisdylene, and the like.

For example, fine particles of a free or paid compound (higher than the melting temperature of the thermoplastic polymer) are mixed with a thermoplastic polymer, mixed by heating to a temperature higher than the melting point of the thermoplastic polymer, and then formed into a sheet using a T-die or the like. Voids can be formed in a thermoplastic polymer by extruding it through a slit and then -axially or biaxially stretching it. Further, by changing the stretching process, the content ratio of voids can be adjusted. The content ratio of voids, that is, void volume/(thermoplastic polymer plus filler) volume is 10 to 50%.
is preferable, and more preferably 15 to 35%. Further, by incorporating a white filler into the thermoplastic polymer constituting the substrate used in the photographic light-sensitive material of the present invention, it can be used as a reflective support with further enhanced reflectivity.

Examples of the white filler preferably used in the present invention include titanium white, Zn 02 , Ba SO 4 , alumina, and talc, and the content thereof is 30% by weight or less, preferably 20% by weight based on the thermoplastic polymer. The following is good. It is also more preferable to bond two or more films made of thermoplastic polymers containing voids as described above from the viewpoint of rigidity and opacity as a base.

The paper feeding method of the present invention is to
This method is applied to a method in which an optical material is cut into sheets of a predetermined size and then imagewise exposed. Therefore, after the roll-shaped photographic material is cut, it is subjected to image exposure and subsequent photographic processing while being moved in sheet form. There are various cutting methods, such as a method in which the cutter blade moves across the surface of the photographic material in the width direction, or a method in which the cutter blade descends horizontally to the photographic material and cuts the material all at once. The present invention includes all of these methods. Generally, carbon steel is often used as the material for the cutter blade.

Further, the exposure method used in the present invention includes a static full-surface simultaneous exposure method and a so-called scanning exposure method in which a photographic light-sensitive material is subjected to slit exposure while moving in synchronization with the scanning movement of an optical means. In the exposure method, the effect of cutting before exposure is exhibited.

In other words, when an uncut roll of photographic material is generally conveyed between multiple roll pairs over a predetermined distance, unreasonable tension may be applied to the photographic material during conveyance, or the conveyance speed of the photographic material may be uneven. is likely to occur. In particular, if such a situation occurs in a portion of the photographic light-sensitive material that is exposed to light, the image quality will be affected. However, if the material is cut before exposure, no excessive tension will be applied to the photographic material during transportation, and no unevenness will occur in the transportation speed of the photographic material.

Examples of the photographic material used in the present invention include positive silver halide color photographic materials, but the present invention is not limited thereto.

Silver halide emulsions used in positive silver halide color photographic materials include internal latent image type silver halide emulsions, which are produced by the conversion method described in, for example, U.S. Pat. No. 2,592,250. So-called conversion silver halide emulsion, or U.S. Pat. No. 3,206,316
No. 3,317,322 and No. 3.367.77
No. 8, silver halide emulsions with internally chemically sensitized silver halide grains, or U.S. Pat.
No. 1,157, No. 3,447,927 and No. 3,5
A silver halide emulsion having silver halide grains containing polyvalent metal ions described in 31,291@;
or a silver halide emulsion in which the grain surface of silver halide grains containing a doping agent is weakly chemically sensitized as described in U.S. Pat.
No. 524, No. 50-38525 and No. 53-240
So-called core-shell type silver halide emulsions produced by the lamination method described in No. 8, and other JP-A-52-156611
, 55-127549 and 57-79940.

Particularly preferred internal latent image type silver halide is one made of Sekifu type grains.

Such silver halide can be produced in the same manner as ordinary laminated silver halide. For example, Japanese Patent Application Publication No. 50-
8524@, No. 50-38525, No. 53-6022
No. 2, No. 55-1524 and U.S. Patent No. 3,206,
As described in No. 313, silver chloride grains are formed, bromide is added thereto to convert them into silver bromide grains, and a halide is further added to silver nitrate to form a layer, or silver iodobromide grains are formed with less excess halogen. Examples include a method in which chloride and silver bromide are sequentially laminated.

Various photographic additives can be added to the internal latent image type silver halide emulsion. For example, optical sensitizers that can be used in the present invention include cyanines, merocyanines,
Examples include trinuclear or tetranuclear merocyanines, trinuclear or tetranuclear cyanines, styryls, holoporacyanines, hemicyanines, oxonols, hemioxonols, and the like.

Internal latent image type silver halide emulsions can be supersensitized. Regarding the method of supersensitization, for example, see ``Review of the mechanism of supersensitization'' (Review of 3 supersensitization).
ization) Photographic Science
and engineering (Photographic 5science and
Enoineerina) (PSE) Vol, 1
8, p. 4418 (1974).

When the internal latent image type silver halide emulsion is used for color use, it is preferable to use a dye-forming coupler.

Examples of yellow dye-forming couplers include benzoylacetanilide type, pivaloylacetanilide type, or 2-equivalent type YE a-coupler in which the carbon atom at the coupling position is substituted with a so-called split-off group capable of 1flR during coupling. is useful.

As the magenta dye-forming coupler, 5-pyrazolone type, pyrazolotriazole type, pyrazolinobenzimidazole type, indasilone type, or diconcave magenta coupler having a split-off group is useful.

In addition, cyan dye-forming couplers include phenolic,
Useful are naphthol-based, vilazoquinazolone-based, or 2-equivalent ω-type cyan couplers having a split-off group.

These dye-forming couplers can be selected arbitrarily, and there are no particular limitations on how they are used or how they are used.

Further, in order to prevent fading of the dye image due to short-wavelength actinic rays, ultraviolet absorbers can be used, such as thiazolidone, benzotriazole, acrylonitrile, benzophenone compounds, etc., especially Tinuvin PS, Tinuvin 120, Tinuvin 320, etc. , 326, 327, and 328 (all manufactured by Ciba Geigy) may be used alone or in combination.

The internal latent image type silver halide photographic light-sensitive material may contain appropriate gelatin (including oxidized gelatin) and its derivatives depending on the purpose.

Preferred gelatin derivatives include, for example, acylated gelatin, guanidylated gelatin, carbamylated gelatin, cyanethanolated gelatin, and esterified gelatin.

Furthermore, in the internal latent image type silver halide photographic light-sensitive material, the hydrophilic colloid layer may contain other hydrophilic binders in addition to gelatin.

This hydrophilic binder can be added to photographic constituent layers such as an emulsion layer, an intermediate layer, a protective layer, a filter layer, and a backing layer depending on the purpose. It is possible to contain agents, lubricants, etc.

Further, the photographic constituent layers of the internal latent image type silver halide photographic light-sensitive material can be hardened with any suitable hardener. Preferred hardeners include chromium salts, zirconium salts, aldehydes such as fluoremaldehyde and mucohalogen acids, halotriazine hardeners, polyepoxy compounds, ethyleneimine hardeners, vinyl sulfone hardeners, and acryloyl hardeners. can be mentioned.

In addition, the internal latent image type silver halide photographic light-sensitive material is provided with a filter layer, an intermediate layer, a protective layer, a subbing layer, a backing layer, an antihalation layer, etc., as necessary, in addition to the above-mentioned emulsion layer on the substrate. It is manufactured by coating various photographic constituent layers. Application methods include dip application, air doctor application, ■custrusion application, slide hopper application, curtain 70-
Coating or the like can be used.

An internal latent image type silver halide photographic light-sensitive material forms a positive image directly after image exposure by subjecting the surface to hazy light or developing it in the presence of a fogging agent. A development treatment method is employed, preferably a surface development treatment method. This surface development treatment method and 1) mean processing with a developer that does not substantially contain a silver halide solvent.

[Examples] Examples of the present invention will be described in detail below, but the present invention is not limited to these embodiments.

FIG. 1 is a schematic sectional view showing an example of an image exposure apparatus to which a paper feeding method according to the present invention is applied.

The image exposure equipment main body 1 includes an image exposure section 3, a paper feed section 11, a conveyance section 13, a photo processing section 24, and a drying section 30.

The image exposure section 3 includes a light source 4, a first reflective mirror 5, a second reflective mirror 6, a third reflective mirror 7, a lens 8, a fourth reflective mirror 9, and a fifth reflective mirror 10. The light source 4 is provided with a slit, and a light source with no uneven light distribution particularly in the axial direction is preferably used. In this embodiment, a rod-shaped halogen lamp (200 W>) with a slit width of 1 Qmm is used, and a ground glass is provided on the light exit surface to eliminate uneven light distribution.

Original image placed on transparent platen glass 2 (not shown)
is subjected to slit exposure by the light source 4, and as the light source 4 moves to scan, the reflected light from the original screen, that is, the light source, is reflected by the first reflecting mirror 5, the second reflecting mirror 6, the third reflecting mirror 7, the lens 8, the fourth reflecting mirror 9, and The photosensitive material (hereinafter simply referred to as "photosensitive material") 12 that is moving in synchronization with the scanning movement of the light source 4 is sequentially exposed through the exposure aperture 23 via the fifth reflecting mirror 10 . In this embodiment, the scanning speed of the light source 4 is 60
mm/sec. In this way, a light image corresponding to the original image is exposed onto the photographic material 12. In addition, the first reflecting mirror 5
, the second reflecting mirror 6 and the third reflecting mirror 7 move in accordance with the scanning movement of the light source 4. Further, the lens 8, the fourth reflecting mirror 9, and the fifth reflecting mirror 10 are stationary during exposure, but when changing the magnification, in order to change the optical distance, they are moved to predetermined positions corresponding to the variable magnification prior to exposure. Moving.

On the other hand, the photographic material 12 is formed into a roll, and the dark box 12'
It is stored inside. The photographic material 12 pulled out from the dark box 12' is conveyed within the conveying section 13 by a series of roller pairs 14.14' to 21.21= that rotate under pressure. By the way, prior to exposure, the photographic material 12, which has been in the form of a roll, is cut into a desired size by a cutting member 22 provided in the conveyance path. Therefore, after being cut, the photosensitive material 12 is conveyed in the form of a sheet. Cutting member 2
2 is a cutter blade 22a as shown in FIGS. 2 and 3.
and a fixed plate 22b. A wire 34 is attached to the fixed plate 22b, and the wire 34 is roughly stretched between pulleys 35 and 36. When the pulley 35 is rotated by the motor 37, the wire 34 moves, and as the wire 34 moves, the fixed plate 22b also moves along the moving rail 33. With this, the fixed plate 2
The cutter blade 22a attached to the photosensitive material 12
This is cut while moving across the surface in the width direction. The material of the naori vine blade 22a is carbon steel.

In addition, as a specific method for operating the cutting member 22, in this embodiment, a sensor (not shown) corresponding to size such as A3 or A4 is provided in the conveyance path of the photographic material 12, and When the photosensitive material 12 reaches the sensor position corresponding to the size selected by the operator using a selection key (not shown), the sensor is activated, and the cutting member 22 is activated in response to this sensor signal. Of course, there are various other methods, and the method is not limited to these. The photographic material 12 thus cut into sheets is exposed to the light image of the original image at the exposure port 23 while moving in synchronization with the scanning movement of the light source 4, as described above.

The exposed photographic material 12 is then sent to a photographic processing section 24.

The photo processing section 24 performs photo processing on the exposed photosensitive material 12 to form an exposed image corresponding to the original image.

In this embodiment, the photographic processing section 24 is comprised of four processing tanks: a developing processing tank 25, a bleaching and fixing processing tank 26, and a stabilizing tank 27, 28. The stabilization tanks 27 and 28 are of a 2M countercurrent type. Further, the light source 29 is, for example, the photosensitive material 1
2 is for providing fog exposure during development processing when an internal latent image type silver halide photographic light-sensitive material is used.

In the photographic processing section 24, the exposed photographic material 12 is processed in each processing tank for a predetermined period of time, then sent to the drying section 30, where it is dried, and then discharged from the apparatus.

In the figure, 31 is a waste liquid storage section, and 32 is a replenishment liquid storage section.

In this embodiment, there are five mirrors, but it is also possible to use three or one mirror, for example. In this way, the image exposure section 3 can be further simplified.

When a color original image was copied at the same size using the image exposure apparatus having the above configuration, a clear copy image with no exposure unevenness was obtained. Specifically, the photographic material 12 used in this example is an internal latent image type multilayer color photographic material prepared by the method described below.

Nine layers from the red-sensitive emulsion layer to the protective layer shown below were coated on polyethylene laminate paper (thickness 200 μm) and synthetic paper-1 and 2, which had been surface-treated (corona discharge), by a simultaneous multilayer coating method and dried.

Synthesis fa-1 Polyethylene MI=0.95 SG 0.96 MP 138°C 60 parts Isostatic polypropylene MI=1.0 MP 165°C 30 parts Talc 8 parts Titanium oxide
2 parts of the above mixture was heated and kneaded using an extruder set at 240°C, extruded from a T-die, and cooled to obtain an unstretched sheet having a thickness of 1.0 mm.

This sheet was heated to 145°C by 3 times in the vertical direction and 4 times in the horizontal direction by 2 times.
It was axially stretched and cooled. ... Sheet A The unstretched sheet film was further biaxially stretched by 4 times in the longitudinal direction and 6 times in the transverse direction, and cooled. Sheet B was placed on both sides of the sheet, corona treated on both sides, heated to 145° C., pressure laminated and bonded to obtain a photographic substrate.

Thickness 205μ Void content 35% Synthetic paper-2 Polyethylene 20 parts Isostatic polypropylene 65 parts Titanium oxide
4 parts talc
9 parts Sodium stearate 2
The above-mentioned tableware was heated and kneaded in an extrusion mode set at 250°C, extruded through a T-die, and cooled to obtain a thickness of 1. A non-stretched sheet of 0 mm was obtained.

This sheet was stretched 3 times in length and 4 times in width at 150° C. and cooled. ... Sheet C On the other hand, the above sheet film was biaxially stretched 44.5 times and 4 times in the width direction. ...Sheet D With sheet C as the core, Uthylene Mli on both sides? Synthetic paper 2 consisting of three layers was prepared by applying vinyl copolymer to a layer of <n<, heating it to 90° C., pressure laminating and pasting.

Thickness: 220μ Contains voids! $28% Red-sensitive emulsion layer (first layer) A 2.0% inert gelatin solution was maintained at 50°C, and the following solutions A and B were simultaneously added and poured over 3 minutes while stirring. After 10 minutes, the following solution C was added by injection over a period of 3 minutes. After aging for 40 minutes, excess salt was removed by precipitation and water washing, and the following solution and solution E were added to give 95 mol% Agcffi and AgSr.
Silver chlorobromide consisting of 5 mol% was laminated on the surface. Excess water-soluble salts were removed again by the precipitation washing method, and a small amount of gelatin was added and dispersed.

This silver halide emulsion then contains sensitizing dye [D-1], sensitizing dye [D-4], 2,5-dioctylhydroquinone protected and dispersed with dibutyl phthalate, and cyan coupler [C,C-1]. liquid, 4-hydroxy-
6-methyl-1,3゜3a, 7-chitrazaindene, 1
-Phenyl-5-mercabutote [.razol, gelatin, and coating aid [S-1] are added as appropriate. Coated silver 50.
It was applied at a weight of 4g/12.

First intermediate layer (second layer) A gelatin solution containing 2,5-dioctylhydroquinone dispersed in dioctyl phthalate, an ultraviolet absorber Tinuvin 328 (manufactured by Ciba Geigy), and a coating aid [5-11] was prepared, and Tinuvin 328 coating ω01Is g/v
12.

Green-sensitive emulsion layer (third layer) Silver halide grains were prepared in the same manner as the red-sensitive emulsion.

A liquid containing sensitizing dye [D-2], 2,5-dioctylhydroquinone protected and dispersed with dibutyl phthalate, and magenta coupler [MC-11], 4-hydroxy-6-methyl-1,3,3a, 7 - Chitrazaindene, 1-phenyl-5-mercaptotetrazole, gelatin, and coating aid [S-2] are added to Jffl. Coating was carried out so that the coating silver (total) was 0.40/n'.

2nd intermediate layer (4th layer) The same formulation as the 1st intermediate layer with 0.2 application of Tinuvin 328.
g/f.

Yellow filter layer 1 (5th layer) Yellow colloidal silver made by oxidation under an alkaline weak reducing agent (the weak reducing agent was removed by the noodle water washing method after neutralization) and 2,5-dioctylhydroquinone dispersed in dioctyl phthalate. The coating solution, coating aid [8-2] and hardener [)(-1] (added immediately before coating) were added, and coating was carried out so that the coated silver was O,Is (J/11').

3rd intermediate layer (6th layer) Tinuvin 328 application rate 0.15 with the same formulation as the 1st intermediate layer
It was applied so that the ratio was 0/u'.

Blue-sensitive emulsion layer (7th layer) A 1.5% inert gelatin solution was kept at 60° C. and while stirring, the following solutions A and B were simultaneously added and injected over a period of 15 minutes. After 15 minutes, the following solution C was injected over 2 minutes, and after 19 minutes, Hypo was added in an amount equivalent to 3 mg/Aa, and the mixture was further aged for 40 minutes. In addition, when sampling and analyzing the composition, AQC
The silver iodide was composed of 1, 4 mol %, AgBr 96 mol %, and AQI 2 mol %.

After removing excess salt by the precipitation washing method, the following solution and solution E were added to form a surface layer of 297 mol% AQCj and 3 mol% AgB, and then excess salt was removed again by the precipitation washing method to form gelatin for dispersion. added.

In this silver halide emulsion, a sensitizing dye [D-3] and a yellow coupler [YC-1] dispersed with dioctyl phthalate.
], 2-mercaptobenzothiazole, 4-hydroxy-6-methyl-1°3.3a, 7-titrazaindene, gelatin, coating aid [5-3] and hardening agent [)
-1-2] (added immediately before coating) was used to coat the coating so that the coating thickness was o and sQ/v'.

4th intermediate layer (8th layer) Same as M1 intermediate layer, coating weight of Tinupin 328: 0.3g/
It was applied so that it looked like 'Ill'. However, a hardener [+-2] was added just before coating.

Protective layer (9th layer) Colloidal silica, coating aid l5-3], hardener [H-
2] and [H-3] (added immediately before application) using a gelatin solution containing gelatin-coated feet 1. It was coated to give an OQ/112.

The following margins are cyan coupler [CC-1] macenta coupler [MC-1] t t yellow coupler [YC-1) C5Ml 1 (Sensitizing dye (D-1'll Sensitizing dye [D-2] Sensitizing dye CD-3) Sensitizing dye [D-4] Coating aid [S-1] Coating aid CS-2: I 2H5 CH2-COO-CH2C1 ((CH2)3 CH3
SO3Na C2H5 Decay aid [S-3) CH2C00ePh (CF2CF2)2H■ CH-COOC (CF2CF2)2H803Na Hardener [H-1:] Hardener [)1-2) t Hardener [H- 3) ■ S 02 CH=CH2 Further, the specific photographic processing conditions in this example are as follows.

Processing process (between processing temperature and processing Ff!1) [1] Immersion (color developer) 38°C for 8 seconds [2] Fog exposure
1 Lux for 10 seconds [31 Color development @ 38℃ 2 minutes [4] Bleach 35℃ 60 seconds [5]
Stabilization treatment 25-30℃ 1 minute 30 seconds [6]
Drying 75-80℃ 1 minute Processing solution composition (color developer) Benzyl alcohol 107 diethylene glycol 15 potassium sulfite 2.0 g Potassium bromide
1.5g sodium chloride
0.2 g potassium carbonate
30.0% hydroxylamine sulfate 1
3. og polyphosphoric acid (DyoPP5) 2.
5g 3-Methyl-4-amino-N-ethyl-N-(β-methanesulfonamidoethyl)-aniline sulfate 5.5g optical brightener (4,4'-diaminostilbenzsulfonic acid derivative) 1.0g water Potassium oxide 2. Add Og water to bring the total volume to 12, and adjust to I) H10.20.

(Bleach-fix solution) Ferric ammonium ethylenediaminetetraacetic acid dihydrate 60 pEthylenediaminetetraacetic acid 3g Ammonium thiosulfate (70% solution) 100mQ
Ammonium sulfite (40% solution) 27.5d Adjust to 8 7.1 with potassium carbonate or glacial acetic acid and add water to bring the total volume to 1! ;Let it be l.

(Stabilizing liquid) 5-chloro-2-methyl-4-isothiazolin-3-one 1.0 g Ethylene glycol 1091-hydroxyethylidene-1,1-diphosphonic acid 2.5 g Bismuth chloride 0.2 g Magnesium chloride 0.1 g - Ammonium hydroxide (28% aqueous solution) 2.0 (add 1.0 g of sodium trilotriacetate water to bring the total volume to 11, and adjust to H7.0 with ammonium hydroxide or sulfuric acid (1)).

Note that the stabilization treatment was performed using a countercurrent method with a two-tank configuration as described above.

Photographic material coated on polyethylene laminate paper
4 was prepared as Sample-3 (comparison), and photographic light-sensitive materials coated on Synthetic Paper-1 and Synthetic Paper-2 were prepared as Sample-1 and Sample-2 (the present invention), respectively, and the cutting durability with the cutter blade 22a was evaluated. I conducted a test.

The results are shown in Table 1.

From the results in Table 1, it can be seen that according to the paper feeding method according to the present invention, the occurrence of shadow failures due to paper dust is extremely low, and the wear of the cutter blade 22a is also low.

[Effects of the Invention] As explained in detail above, the paper feeding method of the present invention has fewer failures due to exposed parts caused by paper dust, can obtain high-quality images over a long period of time, and moreover, There is less wear on the cutter blade, and the life of the cutter blade can be significantly extended.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view showing an example of an image exposure apparatus to which a paper feeding method according to the present invention is applied, and FIGS. 2 and 3 are a cross-sectional view and a front view of a cutting member, respectively. 1... Image exposure device main body, 3... Image exposure section, 11
... Paper feeding section, 12... Photosensitive material, 13... Conveying section, 22... Cutting member, 24... Photo processing section, 30.
...Drying section Fig. 1 Fig. 2 Fig. 3 Fig. 2≦

Claims (1)

[Claims] When forming an image by developing a photographic light-sensitive material wound into a roll having a photosensitive layer on a reflective support after imagewise exposure, the material wound into a roll before the imagewise exposure is A paper feeding method for cutting a photographic material into a desired length, wherein the support is a reflective support made of a thermoplastic polymer containing voids.