JPH07311520A - Reproducing device for material to be recorded - Google Patents

Abstract

PURPOSE:To provide a reproducing device for a material to be recorded provided with the cleaning means of a peeling member so as to obtain a stable peeling characteristic even when the peeling of a coating film-like image forming material is repeated. CONSTITUTION:A cleaning unit is provided with a means (thermocouple) 310 detecting the temperature of the surface of a cleaning member 305 and a control means 312 for always controlling a temp. to be equal to or higher than the surface temp. of the peeling member 302 in such a manner that a heating lamp 308 installed in the cleaning roller 305 is actuated when the temp. of the surface of the cleaning member 305 is made lower than that of the surface of the peeling member 302. Then, the coating film-like image forming material peeled on the peeling member 302 is transferred onto the cleaning member 305, to clean the peeling member 302. Moreover, a secondary cleaning member 306 exerts a shearing force on the coating film-like image forming material, to clean the cleaning member 305.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention removes a film-like image-forming substance from a recording material having a film-like image formed of a thermoplastic or heat-fusible image-forming substance, and records it in a reusable state. The present invention relates to a device for regenerating material.

[0002]

2. Description of the Related Art Due to recent OA, printer paper and copying paper have come to be used in large quantities. As a result, the problem of deteriorating the global environment due to deforestation has become a problem. Conventionally, to solve this problem, the only method is to remove the ink or the like from the used paper, soak it again, and use it again as recycled paper. However, recently, a paper has been developed in which a character image on a used paper can be removed by cleaning and reused for copying or printing. For example, Japanese Patent Laid-Open No. 4-67043 discloses a sheet-shaped recording material whose surface, especially one surface, is subjected to a release treatment, and the release-treated recording material is marked to distinguish it from plain paper. It is disclosed. However, this is a special paper and has problems such as poor fixability, and thus there is a problem in using it as general copying paper. Further, JP-A-1-101576 and JP-A-1-101579 disclose that an image is removed by ultrasonically treating a toner on a recording material in an organic solvent that dissolves the toner. However, there are problems with pollution due to organic solvents, ignition and toxicity, and there is a problem with using it in general offices and homes. JP-A 1-2
Japanese Patent No. 97294 discloses that a recording material is plastic,
An image formed on a recording material is heated by interposing a heat-meltable peeling body between the recording material using a material formed of metal, paper having poor liquid permeability, or ceramics. Although a method of regenerating a recording material to be removed is disclosed, a special paper having a release treatment on its surface must be used. Therefore, the present applicant has previously formed a film-like image made of a thermoplastic or heat-meltable image forming substance obtained by a copying machine or other printing system using ordinary paper without using special paper. The image-forming substance on the recording material is removed by immersing the recorded material (plain paper) in a water-containing image removal accelerating liquid composition and press-contacting or heat-pressing it together with a peeling member for removing the image. And proposed a recycling method that makes it possible to reuse the copy or printing paper that has been used once (Japanese Patent Application No. 4-
255916). However, in the reproducing method using the peeling member, the peeling property is deteriorated when the peeling is repeated, that is, the image-forming substance on the recording material is not completely removed, and the image is recorded on the recording material after the regeneration treatment. There was a problem that the formation material remains. This is mainly because when the recording material is repeatedly reproduced, a large amount of the image-forming substance peeled from the recording material adheres to the peeling member, resulting in unevenness on the surface of the peeling member or on the recording material. It is thought that this is due to the decrease in the adhesiveness with the image forming substance of the above, but so far, a cleaning method for removing the image forming substance on the peeling member without deteriorating the surface of the peeling member. Is currently not specifically proposed.

[0003]

It is an object of the present invention to provide a recording material reproducing apparatus provided with a cleaning means for a peeling member that can obtain stable peeling characteristics even when the film-like image forming substance is repeatedly peeled. It is in.

[0004]

According to the present invention, a film-like image formed by a thermoplastic or thermofusible image forming substance formed by an electrophotographic copying machine and other printing systems is erased, and a recording material can be reused. In the reproducing apparatus, in order to solve the above-mentioned problems, a cleaning member for cleaning a peeling member for peeling an image, and a cleaning unit having a cleaning member (secondary cleaning member) for the cleaning member as needed are provided. The present invention relates to a playback device. As a method for forming an image as a so-called hard copy on a recording material, many methods have been proposed in the past. For example, electrophotographic method using dry toner or wet toner, thermal transfer method using heat-fusible ink sheet, thermal diffusion transfer method using thermal diffusible dye, ink jet method, thermal recording using material that develops color by heat. Law,
Examples thereof include a silver salt photography method, an offset plate, an intaglio, a letterpress, and a printing method using a stencil. Among these, in a method such as a normal electrophotographic method, a thermal transfer method, an inkjet method using a hot melt ink, or a printing method, an image forming substance is formed and recorded in the form of a film near the surface of a recording material.
The term "film form" as used herein does not necessarily mean that the entire image forms a single film. It is simply that the image forming substance does not penetrate deeply into the recording material, or printing is performed with ink containing a dye. This means that the image forming substance is not adsorbed on the recording material at the molecular level as in the case of the above. Therefore, for example, in the case of an image printed by an electrophotographic method using a dry toner and the image is interrupted in one character, or even when one toner particle exists independently, the particle is In the present invention, when the recording material does not penetrate deep into the inside of the recording material, it is regarded as a film-like image due to its removal principle.

The present invention relates to a peeling member for peeling a film-like image forming substance composed of a thermoplastic or heat-melting image forming substance, and an image forming substance peeled on the peeling member by using a cleaning member. The peeling member is cleaned by transferring it to the cleaning member, and if necessary, the cleaning member is further cleaned with a secondary cleaning member, so that the peeling of the film-like image can be performed at high speed and stably. Characterize. Hereinafter, the configuration of the present invention will be specifically described with reference to the drawings, but the present invention is not limited to those shown in the drawings. FIG. 1 shows an example of the structure of a recording material reproducing apparatus according to the present invention. The illustrated reproducing apparatus is composed of five units, 1A is a unit for feeding a recording material, 2A is a unit for applying a liquid that promotes image removal, and 3A is for peeling an image forming substance on the recording material. Image peeling unit and a cleaning unit for cleaning the peeling member,
4A is a drying unit and 5A is a unit for receiving the reproduced recording material. The configuration of each unit will be specifically described below. The recording material feeding unit 1A has a recording material 100 stacked on a bottom plate 101 with the surface on which the image is formed facing downward, one by one from the topmost recording material 100 by a roller 102.
And the registration roller pair 103 for timing adjustment and skew correction. The liquid application unit 2A includes a liquid container 201 filled with a predetermined amount of the image removal accelerating liquid 200, an in-liquid conveyance roller 202 that conveys the image removal accelerating liquid 200 so as to guide it into the liquid 200 of the liquid container 201 while contacting the upper surface of the recording material, An in-liquid guide plate 203 that guides the lower surface of the recording material into the processing liquid 200 in the liquid container 201, a squeezing roller 204 that also functions as a holding and conveying unit, and the like are provided. In this unit, the recording material fed from the feeding unit includes the submerged transport roller 202 and the submerged guide plate 2.
03, it is guided into the treatment liquid 200 in the liquid container 201, and after being immersed in the treatment liquid 200, the squeezing roller 20
The excess processing liquid 200 is removed by 4 and is conveyed to the next image removing unit. This unit is for accelerating the removal of the image, but without applying liquid,
The liquid does not necessarily have to be applied as long as the peelability of the image forming substance can be improved. The composition of the image removal accelerating liquid used here is preferably water containing a surfactant and / or a water-soluble polymer. Further, as described below, additives such as a pH adjusting agent, a chelating agent for sealing heavy metal ions, an antiseptic agent, an antifungal agent, an anticorrosive agent, and a bleaching agent can be used as required.

As the surfactant used in the image accelerating treatment liquid, it is preferable to add a surfactant having a high dispersion or dissolution stability in water. Specifically, as the anionic surfactant, soap or N- is used. Acyl amino acid salt, alkyl ether acetate, carboxylate such as acylated peptide, alkyl sulfonate, alkyl benzene sulfonate,
Alkylnaphthalene sulfonate, sulfosuccinate, α
-Sulfonates such as olefin sulfonates and N-acyl sulfonates, sulfated oils, sulfates such as alkyl sulfates, alkyl ether sulfates and alkyl amide sulfates, alkyl phosphates, alkyl ether phosphates salt,
Examples thereof include phosphoric acid ester salts such as alkylaryl phosphates. Examples of the cationic surfactant include aliphatic amine salts, alkyl quaternary ammonium salts, aromatic quaternary ammonium salts, and heterocyclic quaternary ammonium salts. As the amphoteric surfactant, carboxybetaine,
Betaine type such as sulfobetaine, aminocarboxylic acid salt,
Examples thereof include imidazoline derivatives. Nonionic surfactants include polyoxyethylene alkyl and aryl ethers, polyoxyethylene styrene ethers,
Polyoxyethylene lanolin derivative, ethylene oxide derivative of alkylallyl formaldehyde condensate, polyoxyethylene polyoxypropylene block copolymer, ether system such as polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene glycerin fatty acid ester, polyoxyethylene Ether ester type such as sorbitan fatty acid ester and polyoxyethylene sorbitol fatty acid ester, polyethylene glycol fatty acid ester, fatty acid monoglyceride, polyglycerin fatty acid ester, sorbitan fatty acid ester, propylene glycol fatty acid ester, sucrose fatty acid ester and other ester type, aliphatic alkanolamide , Polyoxyethylene fatty acid amide, polyoxyethylene alkylamine, alkylami Nitrogen-containing system such as oxide. Examples of the fluorinated surfactants include anionic ones such as fluoroalkylcarboxylic acid salts and fluoroalkylsulfonic acid salts, amphoteric ones such as fluoroalkyl-introduced betaine, nonionic ones and cationic ones. The amount of these surfactants added is 0.01 to 20% by weight, preferably 0.1 to 5% by weight. In addition, as the water-soluble polymer added to the image removal promoting liquid composition for the purpose of improving the removal property and the reproduction state together with the surfactant, a natural system,
Vegetable polymers such as gum arabic, tragum gum, guar gum, karaya gum, locust bean gum, arabinogalactone, pectin, quince seed starch, seaweed macromolecules such as alginic acid, carrageenan, agar and furi, gelatin, casein, albumin, collagen Animal polymers such as xanthene gum, microbial polymers such as dextran, in semi-synthetic systems, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, fibrinous polymers such as carboxymethyl cellulose, soluble starch, carboxymethyl starch (CMS), starch-based polymers such as dialdehyde starch, sodium starch glycolate, starch phosphate sodium salt, sodium alginate, propylene glycol alginate Seaweed macromolecules such as coal ester, in pure synthetic systems, polyvinyl macromolecules such as polyvinyl alcohol, polyvinylpyrrolidone and polyvinyl methyl ether, non-crosslinked polyacrylamide, polyacrylic acid and its alkali metal salts, water-soluble styrene acrylic resin, etc. Acrylic resin, water-soluble styrene maleic acid resin, water-soluble vinyl naphthalene acrylic resin, water-soluble vinyl naphthalene maleic acid resin, polyvinylpyrrolidone, polyvinyl alcohol, β-naphthalenesulfonic acid formalin condensate alkali metal salt, quaternary ammonium or A polymer compound having a salt of a cationic functional group such as an amino group in a side chain,
Examples include natural polymer compounds such as shellac. The addition amount of these water-soluble polymers varies depending on the method of applying the image removal accelerating liquid composition, but is added in the range of 0.1 to 20% by weight, preferably 0.1 to 10% by weight.

Other additives added to the image removal accelerating liquid composition are pH adjusting agents capable of adjusting the pH to 7 or more without adversely affecting the prepared image removal accelerating liquid composition. Any substance can be used if it exists. Examples thereof include amines such as diethanolamine and triethanolamine, hydroxides of alkali metal elements such as lithium hydroxide, sodium hydroxide and potassium hydroxide, ammonium hydroxide, quaternary ammonium hydroxide and quaternary phosphonium. Examples thereof include hydroxides, carbonates of alkali metals such as lithium carbonate, sodium carbonate and potassium carbonate. As the chelating agent added as a peeling aid with a sealing agent for heavy metal ions, for example, sodium ethylenediaminetetraacetate, sodium nitrilotriacetate,
Hydroxyethylethylenediamine sodium triacetate,
Examples include sodium diethylenetriamine pentaacetate and sodium uramil diacetate. Examples of the rust preventive agent include acidic sulfite, sodium thiosulfate, ammonium thiodiglycolate, diisopropylammonium nitrite, pentaerythritol tetranitrate, and dicyclohexylammonium nitrite. A bleaching agent may be added for the purpose of improving the whiteness of the recording material after reproduction. Specific examples of the oxidative bleaching agent include hydrogen peroxide, sodium peroxide, sodium percarbonate, sodium hypochlorite and the like. Fluorescent dyes, bluing dyes, enzymes, etc. can also be added. The contact angle of the image removal promoting liquid composition with respect to the image forming substance is preferably 90 degrees or less, more preferably 50 degrees or less. The surface tension is 70m.
N / m or less, more preferably 50 mN / m or less. The permeation rate of the image removal accelerating liquid composition into the recording material is t (contact time between the liquid containing water and the recording material) =
10 ml / m ² or more at 0.4 seconds, preferably 12
It is at least ml / m ² .

The image peeling unit has a pair of upper and lower peeling rollers (peeling members) 30 each having a built-in heating lamp 301 as a softening means for the image forming substance and arranged in a state of being pressed against each other.
2. Peeling roller 302 near the pressure contact portion on the recording material discharge side
Lamp 3 for cleaning the surfaces of the separating claw 303 and the peeling roller 302 arranged so as to contact the surface of the separation roller 302.
A cleaning roller (cleaning member) 305 having a built-in 08 is provided, and an image forming substance receiver 307 for accommodating the image forming substance scraped off by the secondary cleaning member 306 is provided. The heating lamp 301 built in the upper and lower peeling rollers 302 heats and softens the image forming substance on the recording material when the peeling member is in close contact with both sides of the recording material, whereby the image forming substance is recorded. This is to make it easier to peel off than the material. Further, as shown in FIG. 2, the image peeling unit causes the peeling roller 302 to detect the temperature of the peeling member surface (thermocouple) 310 and the peeling roller 302 when the temperature of the peeling member surface falls below a preset temperature. A control means 311 for controlling the temperature to a preset temperature by operating the built-in heating lamp 301 is provided. Examples of the material of the surface layer of the peeling roller 302 include various polymers, metals such as aluminum, nickel and stainless steel, and oxides thereof. The polymer may be one having adhesiveness to the image forming substance, and specifically, synthetic or natural rubber, diarylate resin, xylene resin, epoxy resin, silicon resin, urethane resin, fluororesin, polyimide, Polyamide, polycarbonate, polyarylate, polyether sulfone,
Examples thereof include heat-resistant synthetic resins such as polyether ether ketone, polyester, polyethylene, polyethylene terephthalate, and aramid. Further, these polymers may be used alone or in a mixture, and may contain titanium oxide particles, silica particles, carbon particles or the like in order to improve durability and release characteristics.
Further, the shape of the peeling member does not necessarily have to be a roller shape, and the polymer can be used by forming it into a sheet shape such as a sheet or a belt, or other roller-like support or sheet-like shape. It may be supported on the surface of a support or the like. For example, it may have a multi-layered structure in which a polymer layer composed of at least one of the above polymers is provided on a metal roller-shaped support or sheet-shaped support. Further, it is preferable that the support is formed of a material whose surface is porous or has unevenness, or the surface of the support is processed to have unevenness or matte.

As shown in Examples described later, as a result of considering the cleaning property and the like, it was found that it is particularly preferable to use metal or fluororesin as the peeling member. Preferred fluororesins include ethylene tetrafluoride and ethylene trifluoride chloride alone or copolymers of these with ethylene. As in the image peeling unit, as shown in FIG. 2, the cleaning unit includes a means (thermocouple) 310 for detecting the temperature of the surface of the cleaning member, and when the temperature of the surface of the cleaning member becomes lower than the temperature of the surface of the peeling member. A control unit 312 that constantly controls the temperature of the surface of the peeling member to be equal to or higher than the surface temperature of the peeling member by operating the heating lamp 308 installed inside the cleaning roller 305 is provided. The peeling member is cleaned by transferring the forming substance onto the cleaning member. Here, the difference in surface temperature between the peeling member and the cleaning member is provided in order to improve the transfer rate of the image forming substance on the peeling member onto the cleaning member. The cleaning member 305 may have a roller shape as shown in FIG. 1 or a belt shape as shown in FIG. The material of the cleaning member may be basically the same as the material of the peeling member as long as it has adhesiveness to the image forming substance, but the adhesiveness to the image forming substance at the temperature at the time of cleaning. Compared to the adhesiveness between the peeling member and the image-forming substance, by combining the peeling member and the cleaning member so that
It was confirmed that the releasability (repeatability) was remarkably improved when the recording material was repeatedly regenerated. As the peeling member, it is preferable to use a metal-based member or a fluorine-based member from the viewpoint of the peeling property of the image forming substance on the recording material and the cleaning property of the image forming substance peeled on the peeling member. In that case, as the material of the cleaning member, the critical surface tension is 30 to 50 m.
When the resin in the range of N / m is used, the adhesiveness between the cleaning member and the image forming substance becomes larger than the adhesiveness between the peeling member and the image forming substance, so that the cleaning property is remarkably improved. It was found. As a resin having a critical surface tension in the range of 30 to 50 mN / m,
Examples include polyimide, polyamide, polycarbonate, polyarylate, polyethersulfone, polyetheretherketone, polyester, polyethylene, polyethylene terephthalate, diarylate resin, xylene resin, epoxy resin, urethane resin, and the like. Among them, polycarbonate or polyarylate is a cleaning member. When used as, a particularly good cleaning property was obtained. The secondary cleaning member 306 cleans the cleaning member by applying a shearing force to the image forming material on the cleaning member. A member capable of exerting a shearing force and capable of scraping off the image forming substance is preferable. Specifically, as the shape of the secondary cleaning member, as shown in FIG. 6, a roll-shaped brush member having a rod-shaped substrate longer than the recording material width and spiral or mesh-shaped bristles around the rod-shaped substrate. Alternatively, a blade-shaped member or the like can be used, and as the material, metal, hard plastic, or the like can be used. With soft plastics, sufficient cleaning characteristics cannot be obtained, as will be shown in the examples below. As a secondary cleaning method, cleaning with a roll-up type adhesive tape or the like can be considered, but it is cheaper to use a brush member and a blade member from the viewpoint of durability, Further, good results can be obtained for the secondary cleaning characteristics. Further, in the brush member, by using a rod-shaped base member having a length longer than the width of the recording material and a roll-shaped brush member in which hairs are planted around the rod-shaped base member, the image forming substance on the cleaning member can be efficiently removed. In addition, the peripheral hairs are planted in a spiral shape or a net shape to form an escape route for the removed image forming material, and thus prevent the image forming material once removed from reattaching to the cleaning member. You can also Here, the cleaning of the peeling member by the cleaning unit and the secondary cleaning of the cleaning member are performed by the operation of reproducing the recording material.
It may be performed every time, or may be performed at an appropriate number of times or every usage time. These cleaning means may be used alone or in combination.

When a shearing force is used in the cleaning of the peeling member, the cleaning temperature is not good unless the temperature is lower than the peeling temperature. Had to be cooled to some extent. The reason for this is that the lower the temperature is, the weaker the adhesion between the peeling member and the image-forming substance is, and the lower the temperature of the image-forming substance itself is, the higher the elastic modulus is, so that the shearing force from the cleaning member effectively acts. However, it is difficult to form the peeling member into a drum shape in consideration of the cooling of the peeling member, and even if the belt-shaped peeling member is used, the recording material reproduction processing speed is increased. Accordingly, since the peeling member is not sufficiently cooled, there arises a problem that the cleaning property is deteriorated, and it is necessary to provide a special means for cooling the peeling member immediately before cleaning.
In contrast, when the peeling member is cleaned by transferring the image forming substance on the peeling member onto the cleaning member, the temperature of the peeling member during cleaning is higher and the image forming substance is removed. Therefore, the peeling member can be made into a drum, and there is no problem that cleaning performance is deteriorated even if the recording material is regenerated at high speed. Further, the cleaning of the peeling member using the transfer method has an advantage that the peeling member has less surface damage at the time of cleaning as compared with the cleaning of the peeling member using the shearing force, and therefore stable peeling can be performed even if repeated peeling is performed. is there.

On the other hand, in the cleaning (secondary cleaning) of the cleaning member used in the transfer system, unlike the case of cleaning the peeling member, it is not necessary to remove all the image-forming substance on the cleaning member once. A cleaning method using a shearing force is sufficient because the cleaning may be performed to the extent that the image forming material layer on the cleaning member is not thickened or the smoothness of the surface of the member is impaired. In order to effectively apply the shearing force from the secondary cleaning member, as shown in FIG. 4, the means for heating the cleaning member locally heats the cleaning member. It has been found that more preferable results can be obtained if the temperature of the corresponding cleaning member is locally heated so as to be lower than the temperature of the portion in contact with the peeling member. In addition, as a method for effectively applying the shearing force from the secondary cleaning member, as shown in FIG. 3, a belt-shaped cleaning member is used and two rollers having different roller diameters for driving the belt are used. , Use a roller with a large roller diameter on the side where the cleaning member contacts the peeling member,
A method of using a roller having a small diameter on the other side is included.
This causes distortion at the interface between the cleaning member and the image forming material layer by passing through a roller having a small diameter,
This is to improve the efficiency of secondary cleaning. The drying unit 4A is for drying the recording material, and is composed of an upper drying roller 402, which is made of, for example, aluminum, inside the heating lamp 401, and a lower drying roller 403 which is pressed against the upper drying roller 402 from below. This lower roller 403
Has a surface layer made of a liquid-absorbent member, and a blade 405 for squeezing out the liquid of the surface layer is in contact therewith. Instead of or in addition to such drying rollers 402, 403,
A belt-shaped member may be used, or a hot air fan or an infrared lamp may be used. The unit 5A for receiving the recording material is provided with a tray 501 for receiving the recording material discharged from the drying unit.

[0012]

[Examples] Next, examples carried out to confirm the effects of the present invention will be specifically described. Example 1 An A4 size plain paper for a copying machine, on which an image was formed by using a commercially available toner, was used as a recording material. On the other hand, using the apparatus shown in FIG. Then, the recording material was reproduced. An aqueous solution containing about 1% by weight of a surfactant is used as the image removal promoting liquid 200, a tetrafluoroethylene-ethylene copolymer is used as a peeling member, a polycarbonate is used as a cleaning member, and a stainless blade is used as a secondary cleaning member. did. The surface temperature of the peeling member was set to 90 ° C, and the surface temperature of the cleaning member was set to 95 ° C. For the above recording material,
When the regenerating process was carried out without using the cleaning means by the cleaning roller 305, the residual toner was generated in the regenerating operation of continuous 20 sheets. When the same recording material was subjected to a regenerating process using the cleaning means by the cleaning roller 305, a stable and good regenerating operation was performed without residual toner even after regenerating 100 continuous sheets. It was This confirmed the effectiveness of providing the cleaning means.

Example 2 The same recording material as in Example 1 was used, and the recording material was reproduced under the following conditions using the apparatus shown in FIG. An aqueous solution containing about 1% by weight of a surfactant is used as the image removal promoting liquid 200, nickel is used as a constituent material of the peeling belt 309, polycarbonate is used as a constituent material of the cleaning roller 305, and a stainless blade is used as a secondary cleaning member 306. did. The surface temperature of the peeling member was set to 90 ° C and the surface temperature of the cleaning member was set to 95 ° C. When the recording material was subjected to a regenerating process using a cleaning means using a metal brush [(b) of FIG. 5] instead of the cleaning means using the cleaning roller 305, the residual toner remained in the regenerating operation of 80 consecutive sheets. occured. When the same recording material was subjected to a regenerating process using the cleaning means by the cleaning roller 305 [(a) of FIG. 5], no toner residue was generated even after regenerating 150 consecutive sheets. Stable and good regeneration was performed. When the surface of the peeling member after the regenerating operation was observed, the surface of the peeling member using the cleaning means with the metal brush was found to be damaged.
The surface of the peeling member using the cleaning means by transfer with polycarbonate showed almost no surface damage. From this, the effectiveness of the cleaning means using the transfer method was confirmed.

Example 3 Using the same recording material as in Example 1, using the apparatus shown in FIG. 1, the recording material was reproduced under the following conditions. An aqueous solution containing a surfactant of about 1% by weight is used as the image removal promoting liquid 200, aluminum is used as a constituent material of the peeling roller 302, and polyarylate is used as a constituent material of the cleaning roller 305.
A stainless brush was used as. The temperature of the surface of the peeling member was set to 95 ° C. When the surface temperature of the cleaning member was set to 85 ° C. for the recording material and a regenerating process was performed, a toner residue was generated in the regenerating operation of 100 consecutive sheets. When the surface temperature of the cleaning member was set to 100 ° C. and the image was removed from the same recording material, no toner residue was generated even after repeated 200 sheets were repeatedly reproduced, and the toner was stable and good. Peeling was done. Observation of the surface of the peeling member after the regenerating operation showed 8
The peeling member cleaned at 5 ° C. had a large amount of the image-forming substance adhered to the surface thereof, whereas the peeling member cleaned at 100 ° C. showed almost no adhesion of the image-forming substance to the surface thereof. From this,
It was confirmed that it is preferable to set the temperature of the surface of the cleaning member to the same temperature as or higher than the temperature of the surface of the peeling member.

Example 4 The same recording material as in Example 1 was used, and the recording material was reproduced under the following conditions using the apparatus shown in FIG. An aqueous solution containing a surfactant of about 1% by weight was used as the image removal promoting liquid 200, aluminum was used as a constituent material of the peeling roller 302, and polyarylate was used as a constituent material of the cleaning roller 305. Further, the temperature of the surface of the peeling member and the temperature of the surface of the cleaning member were both set to 90 ° C. The recording material was regenerated by changing the material of the secondary cleaning member. The results are shown in Table 1.
As shown in, both cleaning characteristics and repeatability characteristics
Brush members made of metal and hard plastic, and blade members showed good characteristics.

[0016]

[Table 1]

Example 5 Using the same recording material as in Example 1, using the apparatus shown in FIG. 1, the recording material was reproduced under the following conditions. An aqueous solution containing a surfactant of about 1% by weight was used as the image removal promoting liquid 200, and a stainless blade was used as the secondary cleaning member 306. The temperature of the peeling member surface was set to 90 ° C, and the temperature of the cleaning member surface was set to 95 ° C. The recording material was subjected to a reproduction process by changing various combinations of materials of the peeling member and the cleaning member. The evaluation results are shown in Table 2.

[0018]

[Table 2] * ◎: 100 sheets or more ○: 50 sheets or more △: Less than 30 sheets ×: Less than 10 sheets

[0019]

[Effect] By providing a cleaning member having a cleaning member to which an image substance is transferred and a secondary cleaning member for cleaning the cleaning member, if necessary, in the recording material reproducing apparatus, continuous reproduction processing of the recording material is performed. There is provided a recording material reproducing apparatus capable of performing stable reproduction processing even if it is performed and capable of coping with the speedup of the reproduction processing. Further, the surface temperature of the cleaning member in contact with the peeling member is set to the same as or higher than the surface temperature of the peeling member, and the temperature of each member is controlled so that the peeling member can be cleaned. It is more stable, and the recording material can be efficiently recycled. Further, as a secondary cleaning member, a roll-shaped brush member having a rod-shaped base longer than the width of the recording material and bristles planted around the base, particularly as the roll-shaped brush member, is used as a spiral member around the base. By adopting a roll-shaped brush member having a configuration in which bristles are planted in a net shape, the treatment can be performed more efficiently.

[Brief description of drawings]

FIG. 1 is a diagram showing an outline of a reproducing apparatus of the present invention.

FIG. 2 is a diagram showing an image peeling and cleaning unit portion provided with a temperature detecting means.

FIG. 3 is a diagram showing a cleaning unit section using an image peeling and belt-shaped cleaning member.

FIG. 4 is a diagram showing a cleaning unit portion having a secondary cleaning member that locally heats the cleaning member.

FIG. 5 is a diagram showing an image peeling unit portion using a belt-shaped peeling member. (A) Transfer method for cleaning member (b) Scraping method for cleaning member

FIG. 6 is a diagram showing a brush member used as a secondary cleaning member. (A) spiral brush member (b) reticulated brush member

[Explanation of symbols]

 1A Feeding Unit 2A Image Removal Promoting Liquid Application Unit 3A Image Forming Substance Removing Unit 4A Drying Unit 5A Recording Material Receiving Unit 100 Recording Material 101 Bottom Plate 102 Feeding Roller 103 Registration Roller 200 Image Removal Promoting Liquid (Treatment Liquid) 201 Liquid container 202 Liquid conveying roller 203 Liquid guide plate 204 Squeezing roller pair (also holding and conveying means) 206 Liquid receiver 301 Heating lamp 302 Peeling roller 303 Separation claw 305 Cleaning member (roller or belt) 306 Secondary cleaning member (screen) Laver blade) 307 Image forming substance receiver 308 Heating lamp 309 Peeling belt 310 Peeling member surface temperature detecting means (thermocouple) 401 Heating lamp 402 Upper drying roller 403 Lower drying roller 405 Squeezing blade 501 Covered Rokuzai tray

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yasuo Miyoshi 1-3-3 Nakamagome, Ota-ku, Tokyo Stock company Ricoh Co., Ltd. (72) Kiyoshi Tanigawa 1-3-6 Nakamagome, Ota-ku, Tokyo Share Company Ricoh

Claims (13)

[Claims] 1. A peeling member is pressure-contacted or heat-pressed to a recording material on which a film-like image made of a thermoplastic or heat-melting substance is formed, so that the film-like image-forming substance is transferred from the recording material to the peeling member. In a reproducing apparatus for a recording material, which has at least separating means for transferring and separating and reproducing the recording material,
A reproducing device for a recording material, comprising a cleaning member to which the peeled image forming substance is transferred on the peeling member of the image peeling means. 2. The recording material reproducing apparatus according to claim 1, further comprising a member (secondary cleaning member) for cleaning the cleaning member. 3. The apparatus for reproducing a recording material according to claim 1, wherein the adhesion between the cleaning member and the image forming substance at the temperature during cleaning is higher than the adhesion between the peeling member and the image forming substance peeling member. A recording material reproducing apparatus in which a peeling member and a cleaning member are configured. 4. The recording material reproducing apparatus according to claim 1, 2 or 3, wherein the peeling member is made of metal or fluororesin, and the cleaning member has a critical surface tension value of 30 to 50 mN / m. A recording material reproducing apparatus that is made of the resin described in 1. 5. The recording material reproducing apparatus according to claim 1, 2, 3 or 4, wherein the cleaning member is a belt-shaped cleaning member driven by two or more rollers, and is peeled off. An apparatus for reproducing a recording material in which a diameter of a roller on a side in contact with a member is larger than a diameter of a drive roller on a side opposite to the roller. 6. The recording material reproducing apparatus according to claim 1, 2, 3, 4 or 5, wherein a cleaning member and 2 are provided.
A recording material reproducing apparatus having a heating means for heating at least one of the following cleaning members. 7. The recording material reproducing apparatus according to claim 6, wherein the surface temperature of the cleaning member in contact with the peeling member can be set to be equal to or higher than the surface temperature of the peeling member. A recording material reproducing apparatus having a heating means. 8. The recording material reproducing apparatus according to claim 7, wherein the means for detecting the surface temperature of the peeling member and the surface temperature of the cleaning member, and the both surface temperatures detected by the detecting means are compared to perform cleaning. A recording material reproducing apparatus having a control means for operating a heating member when a difference between the surface temperatures of the member and the peeling member is equal to or lower than a preset temperature. 9. The recording material reproducing apparatus according to claim 6, 7 or 8, wherein the heating means partially heats the surface of the cleaning member. 10. The method according to claim 1, 2, 3, 4, 5, 6, 7,
In the apparatus for reproducing a recording material according to item 8 or 9, the secondary cleaning member can apply a shearing force to the image forming substance on the cleaning member to scrape off the image forming substance. apparatus. 11. The apparatus for reproducing a recording material according to claim 10, wherein the secondary cleaning member has a rod-shaped base longer than the width of the recording material and a bristles brushed around the base. A reproducing device for a recording material that is a member. 12. The apparatus for removing a film-like image-forming substance according to claim 11, wherein the roll-shaped brush member is a roll-shaped brush member in which bristles are planted in a spiral or net shape around the substrate, and the recording material is regenerated. apparatus. 13. The recording material reproducing apparatus according to claim 10, 11 or 12, wherein the material of the secondary cleaning member in the contact portion with the cleaning member is metal or hard plastic. Playback device.