JPS61258243A - Formation of image - Google Patents

Abstract

PURPOSE:To prevent to make a flaw and to prevent the adhesion of dust on the surface of an image, and the deterioration of image quality by providing a protective layer contg. fine particles on the surface of a photosensitive layer, and by performing the image forming treatment contg. two times of the exposure and a development or more. CONSTITUTION:The protective layer contg. the fine particles is provided on the surface of the photosensitive layer, and the image forming treatment contg. at least the exposure and the development is performed more than two times. The usable substrate may have light transmittance and flexibility. When the substrate is used to an electrophotographic recording material, the substrate is further performed the conductive treatment. The light transmittable photosensitive body is comprised various kinds of the high polymer compd. such as a polyvinylcarbazole, a polyvinyl pyrene and derivatives thereof, when the substrate is used to the photosensitive material. The mean particle size of the fine particles contd. in the surface protective layer is preferably 0.005-5mum. The additional amount of the fine particles is usually 1-500wt% parts on the basis of 100pts.wt. of the binding resin. The thickness of the surface protective layer is 0.01-5mum. By constituting the surface protective layer as mentioned above, the formation of the flaw, the adhesion of the dust on the surface of the protective layer and the deterioration of the image quality are prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an image forming method using a light-transmitting photosensitive recording material in the form of a long or crawling material.

The present invention relates to an image forming method that makes it possible to always form high-quality images in a system that forms images at arbitrary positions at any time within the same recording material.

"Prior Art" In recent years, the amount of documents generated in offices, etc. is extremely large.
There is a strong desire to develop a system that can record and reproduce this information at any time.

Conventionally, silver halide has been used as a light-transmitting material used in a long length (here, long length refers to a recording material whose length-to-width ratio is greater than l2coσ) and in a roll form. Movie films using sound, microfilms, and reproduction films using diazo compounds are known. Using these recording materials, after forming an image at any position on the same recording material by artist exposure and development, repeat the same operation at other positions on the recording material. , Buttons require extremely complicated processes and equipment to form images, and using these recording materials, images can be formed at arbitrary positions at any time, and retrieval, projection, and readout can be repeated as necessary. This is extremely difficult in practice.

As a system that makes it possible to form images at arbitrary positions on the same recording material at any time, there is a method that uses, in principle, an electrophotographic recording material, a heat-developable photosensitive material, or a post-activation type dry image forming material. is possible. However, a system capable of forming an image at any arbitrary position on the same photosensitive material at any time and searching, projecting, and reading the image as needed has not yet been realized. An image is formed at any position on the same recording material at any time, and an image at an arbitrary position is formed as necessary.
- Various problems occur in systems that repeatedly perform operations such as searching, projecting, reading, and copying. For example, in a system using a long recording material, it is necessary to run the recording material. When running a long roll of recording material, contact between the front and back sides of the recording material, Physical defects such as scratches on the surface of the photosensitive layer, transfer of substances from various places on the back surface that is in contact with the surface of the photosensitive layer, and blocking on the surface of the photosensitive layer due to contact between the material and rollers or guide pins necessary for running. There may be slight changes in the surface condition, so please take a picture after driving. When formed, the disadvantage is that the quality of the image, such as density and unevenness, deteriorates significantly compared to a solid IfI image formed before traveling. I'm sorry for the headline.

Also, if long recording materials are stored in rolls for a long period of time,
Direct contact between the front and back sides of the recording material has led to drawbacks such as a reduction in image quality (due to occurrence of blocking, for example).

Especially in the case of recording materials that record images by reducing them/reading by enlarging or projecting? As a result, the various defects mentioned above are magnified and become a big problem.

In the case of electrophotographic recording materials, the condition of the surface of the photosensitive layer is extremely important in the image forming process, as is well known. That is, in the electrophotographic process, first, the surface of the photosensitive layer is uniformly charged in four lines, and then imagewise exposed and toner development is performed. Therefore, if an extremely subtle change occurs in the physical properties or condition of the surface of the photosensitive layer, the quality of the image formed will be greatly affected. In electrophotographic materials, in order to protect the surface of the photosensitive layer, a protective layer is provided on the surface of the photosensitive layer, and fine particles are added to this layer as disclosed in Japanese Patent Application Laid-Open No. Co2622
6, JP-A-74-3rOjhiro, JP-A-ShojP-2=2!7
11. However, these are all non-light-transmitting photosensitive materials, which prevent wear due to contact with paper, toner particles, or scratches during the cleaning process, and allow the reuse of the same photoconductor (printing life). The purpose was to improve sexual performance.

In the case of commonly used PPC copying, a toner image formed on a photosensitive recording material is transferred again to paper or the like to form an image. Therefore, in the final image, minute scratches, dust, and defects caused by microscopic physical properties or state changes on the surface of the photosensitive layer are often not magnified and transferred and do not become a major defect in practical use. . Also, PPC or
Even in the case of CPC copying that does not involve the transfer of toner images, there is no need to enlarge and project the photoreceptor itself during normal reading, and the various minute defects described above often do not pose a major drawback in practice.

However, when using a light-transmitting photosensitive recording material and using the tLe image formed on the recording material without any transfer process, the above-mentioned minute defects become a big problem.

In particular, in a system that uses a light-transmitting photosensitive recording material to reduce the size of m@' and record the image, the image is projected again, enlarged, and read out, so there may be various minute defects on the surface of the photosensitive layer. , which poses a serious problem in practice.

An electrophotographic process like the one mentioned above? When an image is formed on a light-transmitting photosensitive recording material using the photosensitive recording material, the condition of the surface of the photosensitive layer is important. That is, if an image is formed at an arbitrary position on the recording material, the material is run several dozen to several thousand times, or the entire image is formed again after being stored in a roll for a long period of time.
In addition to defects such as scratches on the surface of the photosensitive layer, minute spot-like or image-like unevenness was observed. This results in a decrease in the legibility of characters, in the ability to interpret images, or in the quality of continuous-tone images, and the quality of images is particularly markedly degraded in microsystems using translucent electrophotographic recording materials. However, it could not be put to practical use. Some of the causes of this are believed to be defects caused by scratches, adhesion of dust, blocking, etc. that occur during running or storage in roll form, but in addition to these surface defects, it can also be seen by observation using a book or a microscope. Defects occur that are thought to be due to subtle physical properties or changes in the state of the surface of the photosensitive layer, and it is extremely important from a practical standpoint to prevent these defects. Therefore, when using a system that runs a long translucent photosensitive recording material, the above-mentioned major problems must be overcome.

"Problems to be Solved by the Invention" The present invention aims to prevent scratches and dirt S adhesion that occur before the formation of one layer after the λth time when image formation by exposure and development is carried out at least 7 times. The purpose is to prevent the image quality from deteriorating after the first time.

"Means for Solving All Problems" The present invention, etc. is a long roll-shaped recording material for the purpose of forming an image at least two times or more, including exposure and development, at any time and at any position within the same recording material. Translucent photosensitive recording material? In order to solve the above-mentioned image defects that occur after running many times or after being stored in a roll for a long period of time, as a result of extensive research, we developed a protective layer containing fine particles on the surface of the photosensitive layer.
It was discovered that the various drawing method defects mentioned above can be significantly improved by providing the above-mentioned drawing method, and the present invention was developed based on this discovery.

The present invention can be applied to at least exposure and development at any position within the recording material. Advantageously used in long roll-shaped translucent photosensitive recording materials on which images are formed one or more times, such as electrophotographic recording materials, amorphous one-quadrant type photosensitive recording materials, post-activated dry image forming materials, etc. It can be advantageously used particularly for electrophotographic recording materials where the surface condition is important.

The present invention is based on the patent publication No. 11'-/4tPJ7.2, fil
Akira! Tar2331. ! , Tokukai Akira! ? -dlO≠22, JP-A-1.0-1 F/, ≠θ, etc., in the same photosensitive recording material, electrophotographic recording material, 1-quadrant photosensitive recording method, or later The active dry image forming method uses recording materials during image formation in a system that repeats image formation at any time and at any position two or more times. Is it kept as a reminder, or has it already been formed? It can be used to advantage in four ways.

In particular, it can be used advantageously in electrophotographic recording materials.

In addition, "as needed" as used in the present invention means that there is no time constraint on the operation when the exposure and the formation operation depending on the current obstacle are performed two or more times. ``Arbitrary position'' refers to an arbitrary position of 1 ft in the length direction of a long or crawl-shaped light-transmitting photosensitive recording material, and the image is drawn in an irregular order.]l! It means that it can be formed.

Further, in a preferred embodiment, a magnetic marker indicating the position in the longitudinal direction of the recording material can be used to specify the position where an image is to be formed and to search for a companion image that has been formed by providing an optical mark.

Next, the present invention will be described in detail.

The improved N7 light-transmitting photosensitive recording material of the present invention comprises at least a support, a photosensitive layer, and a surface protective layer.

The support used in the present invention is not particularly limited as long as it is transparent and flexible, but in the case of an electrophotographic recording material, it may be subjected to electroconductive treatment. I need. Specific conductive treatments include metals such as aluminum, gold, baladium, and indium. A method of vapor deposition, or In2O3,
Metal oxides such as SnO□? A method of vapor deposition, a method of dispersing metal powder etc. in a binder polymer and applying it, or a method of dissolving an organic quaternary salt compound etc. with a binder polymer.
Depending on the coating method, etc., it is possible to create a conductive transparent plastic film.

Various types of substantially translucent photoreceptors can be used in the present invention. For example, when using an electrophotographic recording material, the following organic photoconductors can be preferably used. Specifically, polyvinylcarbazole, polyvinylpyrene, polyvinylanthracene, polycovinyl≠-(Hiro'-simethylasnophenyl 1-j-phenyloxazole, po+)-3-vinyl-N-ethylcarbazole, polyacenaphthylene , polyindene, pyrene-formaldehyde sti, ethyl carbazole-formaldehyde mM, 41JM Showjb-tl, /
! ! Triphenylmethane polymer etc. described in No. 0 and various polymer compounds that are derivatives thereof, triazole derivatives, oxadiazole derivatives, imidazole derivatives, polyarylalkane derivatives, pyrazoline derivatives, pyrazolone derivatives, phenylenediamine derivatives, arylamine derivatives , amine-substituted calyune derivatives, N,N-bicarpadil derivatives, oxazole derivatives, styryl anthracene derivatives, fluorenone derivatives, benzidine derivatives, hydrazone derivatives, phthalocyanine derivatives, etc. The following examples may be mentioned, but the invention is not particularly limited thereto. Also, a combination of a vaporized W thin film such as selenium and an organic photoconductor can be used.

If the organic photoconductor is a low-molecular compound, is it suitable for film formation? It can be used as a binder using a polymer compound having the following properties. Specifically, polyamide, polyurethane, polyester, epoxy resin, polyketone, styrenic polymer and copolymer, poly-N-vinylcarbazole, polycarbonate, polyester carbonate, polysulfone, vinyl chloride resin, vinylidene chloride resin, vinyl acetate resin. , various polymeric compounds such as acrylic resin. When the organic photoconductor is a polymer compound, it itself contains a film, but if necessary, the above-mentioned polymer compound may be used. May be added.

A sensitizing dye, a chemical sensitizer, etc. can be used in the organic photoconductor, if necessary.

As a sensitizing dye, ``Society of Photographic Scientists and Engineers'' (
Society of PhotographicSc
ientists and engineers)J
, y, 40-644 (/7r) % rApplied Optics (Applied Optic
s) J 5uppl, J, to (/ri6ri), United States Patent (USP) s, osy, rb/, USPJ
,,kozo,,ti,t%U8PJ,,7/ko 771
1. British patent/! ! -3. Coro4L, “Research Disclosure”
we) J#lOri31 (10F, /'773!Month issue 6
J page onwards), USPJ, /≠/, 700, USPj
.

ri31, PF4C1 JP-A-Shoj4-/4A! 60. JP-A-J Otsu-no μyo 4/, JP-A-J6-KOTA-JLR6, JP-A-74-2F117, JP-A-JT-IP, T-RRJ,
Tokukai Shoyo j-/14A2j5', Tokukai Sho! t-3jll
Various sensitizing dyes such as Ilc such as Al can be mentioned. These known sensitizing dyes and other dyes that can increase the total sensitivity of an organic photoconductor can be appropriately selected and used, but are not limited to these.
It's not something you can do.

A chemical sensitizer can be used in the recording material of the present invention, and examples of the chemical sensitizer include electron-withdrawing compounds such as trinitrofluorenone, chloranil, and tetracyanoethylene. , JP-A-Sho rr-1,0
Examples include compounds described in 2232 and the like.

However, it is not particularly limited to these.

To prepare the translucent electrophotographic recording material used in the present invention, the above-mentioned components are dispersed or dissolved in desired proportions as necessary, the dispersion is made into a homogeneous solution, and then a suitable solution is prepared. A photosensitive layer is coated and dried on a support having a conductive surface.
Commonly used by forming. The photosensitive layer is preferably 1~! A film thickness of 0 μm, more preferably 3 to −0 μm is used.

In addition to the above-mentioned electrophotographic recording materials, the substantially translucent recording materials used in the present invention include:
No. 6, Special Publication No. 413-4AP2, Special Publication No. 4A3-μ
9′1≠ issue, special public Akira! ≠-3! Dajmu, special public service 1977-
The heat-developable photosensitive recording material described in No. 2617 etc. or JP-A-Sho! ! -2jorz issue, Tokukai Sho! ! -lta37
Various photosensitive recording materials such as the post-activated dry image forming materials described in No. 37, JP-A-Sho Zip-T7 Eat, etc. can be used.

In the various photosensitive layers used in the present invention, the film physical properties? Various additives (eg, plasticizers, etc.) can be used to improve the quality.

The surface protective layer of the present invention consists of a layer of binder resin containing fine particles. Binder resins used include polyester carbonate, polysulfone, polyether, polyester, polycarbonate, polyamide, polyimide, polyurethane, acrylic ester polymers and copolymers, methacrylic ester polymers and copolymers, styrene resins, polyvinyl acetal, polyvinyl carbazole,
Examples include, but are not limited to, vinyl chloride resins, vinylidene chloride resins, chlorinated polyolefins, vinyl acetate resins, alkyd resins, cylene resins, Kent resins, and celluloses. These resins can be used alone or in combination of two or more.

Various types of fine particles can be used as the fine particles which are an important component in the present invention. For example, inorganic insulating fine particles such as silica pentacalcium carbonate, mica, clay, metal fine particles such as aluminum, iron, copper, nickel, titanium oxide, aluminum oxide, magnesium oxide, zinc oxide,
Metal oxides such as tin dioxide, bismuth oxide, indium oxide, antimony oxide, long chain organic acid metal salts such as zinc stearate, calcium stearate, zinc laurate, polypropylene, polyethylene, polyamide, polyvinylidene fluoride, polytetra Examples include, but are not limited to, organic fine particles such as fluoroethylene. Among these fine particles, silica, aluminum oxide, and titanium oxide, which can be easily dispersed, are particularly preferably used.

As for silica, Aerosil/3 manufactured by Nippon Anicosil Co., Ltd.
0. Aerosil 200, Aerosil 3001 Aerosil 310. Aerosil OX! 0, Aerosil TT-too
, Aerosil Rri72, Thyroid manufactured by Fuji Devinno, 266, Thyroid-24'4', f'f Roy Y2j
! , Thyroid 301゜Tokuseal G manufactured by Tokuyama Nuda Co., Ltd.
V, Carplex manufactured by Geotsugi Pharmaceutical Co., Ltd., EC-1/manufactured by De Soto Chemical Company, etc. Aluminum oxides include Aluminum Oxide C manufactured by Nippon Aerosil Co., Ltd. Titanium oxides include Aluminum Oxide C manufactured by Nippon Aerosil Co., Ltd. Titanium oxide P2! Nippon Aerosil Co., Ltd. (DMOXrO1M), which is a mixture of aluminum oxide and silica, etc.
OXi7o%C0Kra etc. can be mentioned, but it is not limited to this.

These fine particles can be used alone or in combination of two or more.

The average particle size of the fine particles in the surface protective layer is not particularly limited, but may be o, oor~! Preferably, it is in the μm range. If the average particle size is too large, it is not preferable because it impairs the required image quality such as the required light transmittance of the recording material and the resolution of the single image formed. On the other hand, when p is smaller, the protective effect becomes smaller.

The amount of fine particles to be added can be determined within a range that does not impair the required light transmittance of the recording material and the required image quality formed on the recording material, but in general, it is /-J-001ig section range, especially! ~ioo
Parts by weight are preferred.

The thickness of the surface protective layer can be used within a range that does not impair the required light transmittance of the recording material and the required image quality formed on the recording material, but generally it is o, oi to jμ,
Especially 0. /~3μ is suitable.

In order to improve the physical properties of the surface protective layer in the present invention, various additives can be used as necessary.

The surface protective layer of the present invention can be obtained by uniformly dispersing fine particles, a binder resin, various additives, etc. in a solvent, and coating and drying it on the photosensitive layer to a desired thickness.

The light-transmitting photosensitive recording material of the present invention may be used as an intermediate between the support and the photosensitive layer, or between the photosensitive layer and the surface protective layer for various purposes (for example, improving adhesion, etc.). A layer may be provided.

The translucent photosensitive recording material of the present invention has slipperiness on its back surface.
A layer may be provided to improve durability such as charging property and anti-blocking property.

"Example" Examples of the present invention are shown below, but the present invention is not limited thereto.

, Example 15 Comparative Example 7% zinc costearate if, triacetylcellulose/! ?
, methylene chloride r occ * 1 in mail mill
A uniform coating solution was prepared by dispersing for 0 hours.

Commercially available conductive film 'l'J-100 (manufactured by Konjin)
The back side of the O1! A layer of μ was provided.

Next, organic photoconductor (11toy, sensitizing dye (I[)0
, / f, polycarbonate (product name [Lexan/J
/-///manufactured by J G, E, Inc.) irf, polyester resin (product name "Baironco OOJ Toyobo ■g"), 2Pl
Methylene chloride/! Dissolved in OCX:, coated on the conductive layer of the support and dried to a film thickness of /! A translucent electrophotographic film (A) of μm size was prepared.

(I) (II) Next, silica (trade name "Aerosil R 72" manufactured by Nippon Aerosil ■) toy, polymethyl methacrylate (trade name "
Dianal BR-fjJ Mitsubishi Kasei ■) 2or, Methyl Ethyl Kent 1rooa:.

? Uniform dispersion was performed using a ball mill for 10 hours.

The dispersion was applied onto the photosensitive layer of the electrophotographic film (A) so that the film thickness after drying was 7 μm.

After drying and applying a surface protective layer, cut this electrophotographic film into 16m wide pieces using a slitter to make a long film (/-
a) ft was created.

Next, to clarify the effect of adding fine particles, polymethyl methacrylate 2 was added to the photosensitive layer of Seiko Photographic Film (A).
A solution containing 0ff methyl ethyl ketone /100 CTVC was applied and dried to form a surface protective layer of /μm, and then cut to /4tm to prepare a comparative long film (/-b) 2.

Also, the electrophotographic film (A) without a surface protective layer is also /6mV
C was cut and a comparative long film (/-c) 7 was made.

The long film (n-a) and comparative long film (/-b) (/-c)jOmt were each tested at a speed of 1 oa at a speed of /7 W/sec in the running test device shown in FIG.
o times of back and forth running test) (After 2 runs, each long film was charged to +700V and image reduction exposure was performed using a reflective metal 211. This was carried out using a liquid developer (Ricoh MRP).
After developing using i, heat fixing was performed to create micro images on these long films.

For comparison, micro images were created using the same electrophotographic process on long films (/-a), (/-b), and (l-c) that had been transported back and forth 84 times. Each was created n.

When these images iJ were projected twice, enlarged, read out, and evaluated the image quality, it was found that the long film (/-b
)(/-e) has both r!s of each 1 which are not recognized at all in the images before running! I found a flaw. These image defects are caused by driving! : The image quality was significantly degraded and could not be put to practical use.

In order to analyze this image defect, the surface of the film after running ('-b) (t-C) was observed with an interference microscope at a magnification of 3°06, and it was found that there were no scratches, dust, etc. Surface defects are recognized. More images on this film? When formed,
In addition to major defects based on surface defects such as scratches and dust,
Various image defects such as minute spot-like density unevenness were found.
In the case of electrophotographic film, subtle changes in the surface condition as it is transported may cause various image defects. It is thought that this will bring about

However, the long film (/, -3) has very few image defects due to scratches, dust, etc. in the f'L9#Jf image created after running, especially (/-b) (
/-c) ttX seen in an image created on a long film
With such a minute change in surface condition, there was no spot-like a degree unevenness, and it was sufficiently usable for practical use.

Surface protection 1- containing fine particles to achieve these results is
It is clear that this method has a remarkable effect on preventing image quality deterioration due to driving.

Example 2~! An electrophotographic long film ( j) ~ (j) Created in 1. After running the vehicle in the same manner as in Example 1, the entire image was formed and the quality was evaluated. The results are shown in Table 1. This image has scratches,
There were almost no image defects such as image defects due to dust or the like, and image defects such as minute spot-like density unevenness, and the image was sufficiently usable for practical use. That is, it is clear that the surface protective layer containing fine particles is extremely effective in preventing deterioration in quality (scratches, dust, density unevenness) of images formed after film running.

Example 6 Zinc stearate 32, triacetylcellulose/! f
, Disperse methylene chloride in zoocc 2-roll mill for io time to make a uniform surface coating solution? Created.

One side of the PET film is subjected to discharge treatment, and the above coating solution is applied on top of it. The next step is to coat, dry, and apply a layer of 0, rμm.

Next, on the surface opposite to this layer, nitrocellulose 701 was dissolved in acetone, and the solution was applied and dried to form an intermediate layer of 0.3 μm.

Silver behenate Jff Toluene/Methyl ethyl ketone (l/
2) Added to mixture 20f and dispersed in a ball mill for about 20 hours to create a uniform silver behenate suspension. Silver behenate suspension/, if the following ingredients CI]? Add behenate to create a silver emulsion.

This behenic acid emulsion was applied to the intermediate layer of the above support to a thickness of 700 μm.
It was applied through the orifice and dried. Next, on top of this, a reducing agent-containing solution λfvr-7 consisting of the following component [Ir]
A post-activated dry imaging photosensitive film (CB) was prepared by coating through a 3-μm orifice and drying.

Ingredients [Technical] Polyvinyl butyral methyl ethyl s, oil ketone solution (io weight%) Mercury acetate methanol solution (100 mg o, 1100
73 countries) α, α, α', α'-Tetrabrome 23d0 Nixylene triphenyl phosphite J1r'
9 Iodine r Dacyphenylbromomethane 4 A ~ Quinoline 30 D Ingredient C
M] Cellulose acetate 6.3f, 2
'-Methylenebis(Guechi) 3. Ta?ru 4-t-
Butylphenol) Phthalazinone 1.2? Acetone 139 then silica (
Product name "Aerosil 'l'-2004E12E7 Aerosil ■@'110f, polyvinyl butyral (product name r Denka Butyralco 000-manufactured by LJ Denki Kagaku Kogyo ■) 6t
1 methyl ethyl ketone lz o oa: 1 (uniformly dispersed in a ball mill for io hours.

The dispersion was coated and dried on a post-activated dry image forming photosensitive film (B) so that the film thickness after drying was 1 μm, thereby forming the entire surface protective layer. After this, the photosensitive film formed using the dry process was cut into 16 pieces using a slitter, and the long film (6 pieces) was cut into 16 pieces using a slitter.
-a)'i created.

Next, in order to clarify the effect of adding fine particles, polymethyl methacrylate 20ff methyl ethyl ketone l! 1μm by uniformly dissolving in 00μm and applying and drying it in a solution tank.
surface protective layer? After that, it was cut into IAm pieces to prepare a comparative long film (4-b).

A post-activated dry-formed photosensitive film (B) without a surface protective layer was also cut into 16 m lengths, and a comparative long film (6-G
)? Created.

Long film (6-a), comparison long film (A
-b), (j-c) 2 Run in the same manner as in Example 1, then heat on a 1000C hot plate for 5 seconds to impart photosensitivity, and then expose the image to a reduced size using a reflective original. On the hot plate of KoO0C! Image formation was performed by heating for a second. Also, for comparison, unrun long films (6-a), C6-b)
, (6-c), micro-images were created by the same process as above.

When these images were projected and enlarged 2λ times and read out to evaluate the image quality, the long film after running (A-b)
In the images created in (j-c), there were many defects such as scratches, dust, etc. that were not seen in the images before driving.

On the other hand, in the image created after running the long film (6-a), only slight image defects due to scratches, dust, etc. were found, and there were almost no changes from the image before running.

"Effects of the Invention" Although the present invention was explained in Examples 1 to 6, the long film of the present invention in which a surface protective layer containing fine particles was provided on the surface of the photosensitive layer,
Even after a severe driving test, it is possible to maintain almost the same image quality as before transport.

By comparison, is there a surface protective layer containing fine particles on the surface of the photosensitive layer of the present invention? The translucent photosensitive recording material is in the form of a roll and undergoes a forming process that includes at least exposure and development, and an image is formed at any position within the recording material two or more times. r-
A repeated run? It is effectively used in related systems.

[Brief explanation of the drawing]

FIG. 1 shows a running test device for recording materials. Are the symbols in the diagram below? means. A 1, A 2: Roll for winding recording material (diameter: O) B1, B2: Roll for running recording material Patent applicant: Fuji Photo Film Co., Ltd. Figure 1 procedural amendment document June 1985, λ7 patent Dear Director-General of the Agency, 1, Indication of the case, 1985 Patent Application No. 1, 2, Title of the invention: Image formation method 3, Relationship with the person making the amendment: Name of the patent applicant (520)
) Fuji Photo Film Co., Ltd. 4, subject of correction
! Column 5 of the "Detailed Description of the Invention" in the Book II, and entry g in the "Detailed Description of the Invention" section of the Statement of Contents of the II are amended as follows. /) @2 Tei Insert ``family'' after ``heat phenomenon 1 phenomenon type anger material'' on the 17th line. 2) In the 6th line of the 3rd page, amend ``deto'' to ``wa''. 3) 3rd line 1-front and back" is changed to "transfer from the back to the front, or the surface of the photosensitive layer transferred to the back is transferred back to the photosensitive layer, or the one transferred to the guide roller is exposed again. ``Transfer to layer, etc.'' μ) On page 3, line 77, amend "There is significant density unevenness, etc." to "Density unevenness, etc. has occurred and is significant." In page 7, line 7, ``adhesion'' is corrected to ``adhesion, etc.''. 6) Correct "(l/λ)" on page 1, line 1 to "(capacity ratio//2)J. June θ, 1950, Mr. Commissioner of the Japan Patent Office.
-1.Indication of the case 1939 6Q patent application No. Tata O9'
, No. 2, Title of the invention Image forming method 3, Relationship with the case of the person making the amendment Patent applicant ↓ Subject of the amendment ``Detailed description of the invention'' column in the specification & Contents of the amendment ``Detailed description of the invention'' in the description The description in the "Detailed Explanation" section has been amended as follows. (1) Correct "/knee〇" in the third line of the second page to 1-JO:/j. (2) On the 11th page, in the line following the line ``May be provided'', there is a statement that says ``The image forming method of the present invention can be carried out by a commonly known method depending on the recording material, but for example, In the case of electrophotography, "Electrography J (R, M,
5chaffert, “Electrophotogr.
aphy Fifth ImpressionJ (/
It can be carried out by the method described on pages 3 to 3 of the core page of Focal Press London. That is,
After the surface of the electrophotographic light-sensitive material is positively or negatively charged using a corona charger or the like, an electrostatic latent image is formed by imagewise exposure. Next, this is visualized by developing, and various developing methods can be used, such as various developing methods using dry toner, powder cloud methods, and methods using wet toner. In order to reproduce fine images or images with gradation, a liquid printing method using wet toner can be preferably used. Fixed waste methods include contact with hot air, heated rollers, etc., heat fixing by infrared rays, light, flash light, high frequency irradiation, etc., solvent fixing by contact with developer or vapor of the parent solvent of the photoreceptor, and pressure fixing. A method such as pressure fixing using a roller can be used. ” is inserted.

Claims (1)

[Claims] A method of forming an image on a long, roll-shaped, light-transmitting photosensitive recording material provided with a surface protective layer containing fine particles on the surface of the photosensitive layer, through a process including at least exposure and development. An image forming method characterized by forming an image on the photosensitive recording material two or more times.