JP3537972B2 - Reproducing method of recording material and image removal accelerating liquid - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing a hydrophobic image from a recording material having a hydrophobic image formed of a thermo-flexible or thermo-softening image forming substance, and copying the recording material. The present invention relates to a method for regenerating a recording material suitable for reuse in image formation such as recording and recording, and an image removal accelerating liquid used in the method.

[0002]

2. Description of the Related Art Recently, OA has increased the use of printer paper and copy paper in large quantities, and the destruction of forests has caused a problem of global environmental degradation due to the production of large quantities of paper. ing. In addition, a large amount of waste paper has been generated from offices, and most of the paper has been wasted. In order to solve this problem and recycle paper, it has been customary to remove ink and toner etc. from paper used for printing and copying, make paper again, and use it as recycled paper. Recently, it has been proposed to remove an image on a sheet used for image formation by a copying machine or a printer by cleaning or the like and reuse the sheet for copying or printing.
For example, Japanese Patent Application Laid-Open No. Hei 7-13383 discloses that a hydrophobic image composed of a heat-flexible ink (toner) is formed at least in part on a paper-based layer containing cellulose fibers as a main component. The recording medium is impregnated with an image removal accelerating liquid such as water or an aqueous solution of a surfactant and / or a water-soluble polymer, and the hydrophobic image is transferred to the image peeling member, thereby converting the hydrophobic image from the paper layer. A method of reproducing a recording material to be removed is disclosed. This reproducing method is a very effective method of reproducing a recording material because the hydrophobic image can be peeled and removed without damaging the recording material. However, since the image removal accelerating liquid is often used, the reproduced image is reproduced. Elongation, wrinkles, undulations, curls, and the like may occur on the recording material. Also, for example, in the case of reproducing a recording material having a toner image formed by an electrophotographic process, a large amount of a dye or a pigment added as a colorant or a polarity control agent to the toner is used with a large amount of an image removal accelerating liquid. Even if the toner image is eluted and the toner image is peeled off from the recording material, the eluted dyes and pigments may stain and remain on the recording material, and the reproduced recording material is used again for copying and recording. Was sometimes difficult to do.

[0003] As a method of solving such a problem,
Japanese Patent Application Laid-Open No. 7-281566 discloses the use of an image removal accelerating liquid composed of an aqueous solution containing a high concentration of a surfactant. By impregnating the recording material on which the hydrophobic image is formed with a small amount of the image removal accelerating liquid and transferring the hydrophobic image to the image peeling member, the hydrophobic image can be sufficiently removed from the recording material. Further, it is possible to prevent the reproduced recording material from being stretched, wrinkled, wavy, curled, or the like.

However, it is generally difficult to dissolve a surfactant in water at a high concentration, and some surfactants are difficult to dissolve even at a low concentration. In some cases, it is necessary to mix the organic solvent with the organic solvent, and in this case, the coloring agent and the polarity controlling agent contained in the toner are eluted by the organic solvent and the surfactant, and thereby the regenerated material is regenerated. In some cases, the recording material is dyed, and it is difficult to reuse the reproduced recording material for copying or recording.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve such a problem, and to improve a recording material having a hydrophobic image formed by a thermo-flexible or thermo-softening image forming substance. The peelable image can be sufficiently peeled off, and the reproduced recording material does not stretch, wrinkle, wavy or curl, and the reproduced recording material is dyed with a coloring agent or a polarity control agent. It is an object of the present invention to provide a method of reproducing a recording material with less noise. Another object of the present invention is to provide an image removal accelerating liquid used in such a method for reproducing a recording material.

[0006]

The above-mentioned object is achieved by the following first invention and second invention. (1) At least a recording material having a hydrophobic image formed of a thermoflexible or thermosoftening image forming substance
The hydrophobic image forming surface comprises a layer which swells with water,
A method for reproducing a recording material, in which an image removal accelerating liquid is applied to the layer , the hydrophobic image is brought into contact with the peeling member under heat and pressure, and the hydrophobic image is transferred to the peeling member to be peeled off from the recording material. In at least the hydrophobic image forming surface is characterized in that the image removal accelerating liquid is an aqueous solution containing at least an amine hydrochloride and a surfactant dissolved therein,
A method for reproducing a recording material comprising a swelling layer . (2) At least a hydrophobic image form having a hydrophobic image formed by a thermoflexible or thermosoftening image forming substance
An image removal accelerating liquid is applied to a recording material having a layer whose surface swells with water , the hydrophobic image is brought into contact with the release member under heat and pressure, and the hydrophobic image is transferred to the release member. In the method of reproducing a recording material to be peeled off from a recording material, the image removal accelerating liquid has at least one of a compound having an amino acid structure and a compound having an amino group and a sulfosuccinate alkyl ester and / or a sulfosuccinate alkyl ester salt structure. At least hydrophobic , characterized in that it is an aqueous solution containing a compound dissolved therein
A method for reproducing a recording material comprising a layer whose image forming surface swells with water .

According to the first invention, an image removal accelerating liquid comprising an aqueous solution containing a high concentration of an amine hydrochloride and a surfactant can be obtained without using a large amount of an organic solvent.
By using this image removal accelerating liquid, even if the applied amount of the image removal accelerating liquid is small, the hydrophobic image can be sufficiently peeled and removed from the recording material, and the regenerated recording material can be stretched and wrinkled. In addition, it is possible to reproduce a recording material which does not generate waving or curl, and which is less stained by a coloring agent or a polarity control agent on the reproduced recording material. Also,
According to the second invention, at least one of a compound having an amino acid structure and a compound having an amino group, and a compound having a sulfosuccinic acid alkyl ester and / or a sulfosuccinic acid alkyl ester salt structure can be prepared without using a large amount of an organic solvent. , An image removal accelerating liquid comprising an aqueous solution containing a high concentration of dissolved is obtained. By using this image removal accelerating liquid, even if the amount of the image removal accelerating liquid applied is small, a hydrophobic image can be sufficiently obtained from the recording material. The recording material that has been regenerated can be peeled and removed without stretching, wrinkling, waving, curling, or the like, and the reproduced recording material is less stained with a coloring agent, a polarity control agent, or the like. Regeneration of materials can be performed.

The amine hydrochloride used in the first invention includes alkylamines such as monoamine hydrochloride such as monoethylamine hydrochloride, diethylamine hydrochloride and triethylamine hydrochloride, and diamine hydrochlorides such as ethylenediamine hydrochloride and propylenediamine hydrochloride. Hydrochloride and the like. The content of the amine hydrochloride is preferably from 0.01 to 70% by weight, and particularly preferably from 1 to 20% by weight of the image removal accelerating solution.

The surfactant used in the first invention may be any of anionic, cationic, nonionic and amphoteric surfactants. Specific examples thereof include polyoxyethylene alkyl ethers. , Polyoxyethylene alkylphenyl ethers, polyoxyethylene alkyl esters, polyoxyethylene alkyl sorbitan esters, polyoxyethylene alkylamines, glycerin fatty acid esters, decaglycerin fatty acid esters, polyglycerin fatty acid esters, sorbitan Fatty acid esters, propylene glycol fatty acid esters, polyethylene glycol fatty acid esters, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene polyoxypropylene block Nonionic surfactants such as limers, perfluoroalkyl phosphates, polyoxyethylene-modified polydimethylsiloxanes, higher fatty acid salts, N-acyl amino acid salts, polyoxyethylene alkyl ether carboxylate, acylated peptides, alkyl Sulfonate, alkylbenzene sulfonate, alkylnaphthalene sulfonate, mono- or dialkyl sulfosuccinate, α-olefin sulfonate, N-acyl sulfonate, alkyl sulfate, polyoxyethylene alkyl ether sulfate, poly Oxyethylene alkyl aryl ether sulfate, alkyl amide sulfate, monoalkyl phosphate, dialkyl phosphate, trialkyl phosphate, monopolyoxyethylene alkyl ether phosphate,
Bispolyoxyethylene alkyl ether phosphate, tris polyoxyethylene alkyl ether phosphate, polyoxyethylene alkyl aryl ether phosphate, perfluoroalkyl carboxylate, perfluoroalkyl sulfonate, perfluoroalkenyl aryl sulfonate, N -Perfluorooctanesulfonyl glutamate, perfluoroalkyl-N-ethylsulfonylglycine salt, 3- (ω-fluoroalkanoyl-N-ethylamino) -1-propanesulfonate, perfluoroalkylethyl phosphate, phorbonate Anionic surfactants such as acid-modified polydimethylsiloxane and sulfonic acid-modified polydimethylsiloxane, higher alkylamine salts, higher alkyl quaternary ammonium salts, alkylbenzeneamine salts, and Rubenzen quaternary ammonium salts, cationic surfactants such as alkyl heterocyclic quaternary ammonium salts, betaine, and the like ampholytic surface active agents such as amino acids.

Among these surfactants, compounds having an alkyl sulfosuccinate and / or alkyl sulfosuccinate salt structure are particularly preferred. As these compounds, those isolated as acids can be used, but those generally known as surfactants are preferable. Examples of such surfactants include, for example, representatively represented by an alkyl chain portion, dialkyl ester salts such as tridecyl, octyl, hexyl, cyclohexyl, amyl, and butyl, isodecanol, ethoxylate-dodecyl alcohol, ethoxylate-nonylphenol. And monoalkyl ester salts such as ethoxylate-alkylamide. Particularly, dialkyl ester salts such as octyl and hexyl are preferred.
The content of the surfactant in the image removal accelerating liquid is 1
It is preferably from 0 to 60% by weight, particularly preferably from 20 to 50% by weight.

[0011] The image removal accelerating liquid in the first invention includes:
Further, it is preferable to add a fluorinated carboxylic acid compound to form an aqueous solution in which the amine hydrochloride, the fluorinated carboxylic acid compound and the surfactant are dissolved and contained. By using the fluorinated carboxylic acid compound together with the amine hydrochloride, the fluorinated carboxylic acid compound dissolves in water by interacting with the amine hydrochloride, so that the surfactant can be dissolved at a high concentration, and the It is possible to obtain an image removal accelerating liquid comprising an aqueous solution containing a high concentration of an agent. By using this image removal accelerating liquid, even if the applied amount of the image removal accelerating liquid is further reduced, the hydrophobic image can be sufficiently peeled and removed from the recording material, and the stretched image can be applied to the reproduced recording material. No wrinkles, undulations or curls
In addition, it is possible to reproduce a recording material that is less stained by a coloring agent, a polarity control agent, or the like on the reproduced recording material.

Examples of the fluorinated carboxylic acid compound include perfluorohexanoic acid, perfluoroheptanoic acid, perfluorooctanoic acid, perfluorononanoic acid, perfluorodecanoic acid, and 5H-octafluorovale. Ic acid, 7H-dodecafluoroheptanoic acid, 9H-hexadecafluorononanoic acid, 2-fluorocaproic acid, 2-fluoroenantioic acid, 2-fluorocaprylic acid, 2-fluoroperalcoic acid, 3-chlorotetrafluoropropionic acid, 3,4-dichloropentafluorobutyric acid, 3,5,6-trichlorooctafluorohexanoic acid, 3H-tetrafluoropropionic acid and the like.

The content ratio of the amine hydrochloride and the fluorinated carboxylic acid compound in the image removal accelerating solution is preferably an equimolar ratio of each acid and base. If the molar ratio is not equal, either the fluorine-containing carboxylic acid compound or the amine hydrochloride becomes excessive, and the excess compound is present as an impurity, so that the performance of the image removal accelerating liquid is deteriorated.

Further, it is preferable that the image removal accelerating liquid in the first invention contains at least one kind of a compound having an amino acid structure and a compound having an amino group. By dissolving and containing at least one of a compound having an amino acid structure and a compound having an amino group, an acid-base interaction acts to obtain an image removal accelerating solution comprising an aqueous solution containing a surfactant in a high concentration. be able to. By using this image removal promoting liquid, even if the applied amount of the image removal promoting liquid is further reduced, the hydrophobic image can be sufficiently peeled and removed from the recording material,
It is possible to reproduce a recording material in which the reproduced recording material is free from stretching, wrinkling, waving, curling, and the like, and in which the reproduced recording material is less stained by a coloring agent, a polarity control agent, or the like. .

Examples of the compound having an amino acid structure include 6-aminocaproic acid, 7-aminoheptanoic acid, 2-aminocaprylic acid, 8-aminocaprylic acid, 11-aminoundecanoic acid, 12-
Aminododecanoic acid, isoleucine, leucine, glycine, alanine, valine, serine, methionine, aspartic acid, glutamic acid, γ-aminobutyric acid, lysine,
Arginine, phenylalanine, tryptophan and the like, and as the compound having an amino group, for example, methylamine, ethylamine, propylamine,
Butylamine, pentylamine, dimethylamine, diethylamine, dipropylamine, dibutylamine, dipentylamine, trimethylamine, triethylamine, tripropylamine, tributylamine, tripentylamine, dioctylamine, trioctylamine, monoethanolamine, Examples thereof include diethanolamine and triethanolamine.

The content of the fluorinated carboxylic acid compound, the compound having an amino acid structure or the compound having an amino group is preferably from 0.01 to 70% by weight, particularly preferably from 1 to 20% by weight of the image removal accelerating solution.

The image removal accelerating liquid in the first invention can be obtained by adding and dissolving a surfactant to an aqueous solution of amine hydrochloride. Further, in order to further dissolve and contain the fluorine-containing carboxylic acid compound, an aqueous solution of an amine hydrochloride and a fluorine-containing carboxylic acid compound may be mixed and dissolved, and then a surfactant may be added and dissolved. In order to dissolve and contain at least one of the compound having an amino group and the compound having an amino group, the compound having an amino acid structure and the compound having an amino group are contained in an aqueous solution of an amine hydrochloride or an aqueous solution of an amine hydrochloride and a fluorine-containing carboxylic acid compound. After dissolving at least one of the above, a surfactant may be added and dissolved.

Next, the second invention will be described. Examples of the compound having an amino acid structure and the compound having an amino group, and the compound having an alkyl sulfosuccinate and / or an alkyl sulfosuccinate salt structure used in the image removal accelerating solution according to the second invention include:
Those exemplified in the description of the image removal accelerating liquid in the first invention can be cited, and the fluorine-containing carboxylic acid compounds described above can also be used.

The image removal accelerating liquid in the second invention is preferably produced as follows. That is, an aqueous solution of a compound having an amino acid structure and a compound having an amino group are mixed, and this is mixed with a fluorinated carboxylic acid compound, and then a compound having a sulfosuccinic acid alkyl ester and / or a sulfosuccinic acid alkyl ester salt structure is added. And then dissolved.

According to this production method, the carboxyl group of the compound having the amino acid structure and the amino group of the compound having the amino group react by mixing the aqueous solution of the compound having the amino acid structure with the compound having the amino group. The compound having an amino group becomes an aqueous solution containing a water-soluble substance that has become water-soluble, and by mixing this aqueous solution with a fluorine-containing carboxylic acid compound, the amino group of the water-soluble substance and the carboxyl group of the fluorine-containing carboxylic acid compound are mixed. Reacts with
An image removal accelerating liquid comprising an aqueous solution containing a hydrophobic fluorine-containing carboxylic acid residue and an amine residue and a hydrophilic amino acid residue, and a compound having a sulfosuccinic acid alkyl ester and / or a sulfosuccinic acid alkyl ester salt structure is obtained. be able to.

Further, the image removal accelerating liquid in the present invention comprises:
An aqueous solution of a compound having an amino acid structure and a fluorinated carboxylic acid compound are mixed, and this is mixed with a compound having an amino group, and then a compound having a sulfosuccinic acid alkyl ester and / or a sulfosuccinic acid alkyl ester salt structure is added. It can be obtained by dissolving. According to this production method, by mixing the aqueous solution of the compound having an amino acid structure and the fluorinated carboxylic acid compound, the amino group of the compound having the amino acid structure and the carboxyl group of the fluorinated carboxylic acid compound are subjected to an acid-base reaction. The carboxyl group of the compound having an amino acid structure and the amino group of the compound having an amino group react by reacting and further mixing the compound with an amino group-containing compound to form a hydrophobic fluorine-containing carboxylic acid residue and an amine. And a hydrophilic amino acid residue, and an aqueous solution containing a compound having a sulfosuccinic acid alkyl ester and / or a compound having a sulfosuccinic acid alkyl ester salt structure. In these image removal accelerating solutions, hydrophobic fluorine-containing carboxylic acid residues and amine residues and hydrophilic amino acid residues show a surfactant-like behavior, and as a further surfactant, alkyl sulfosuccinate is used. It contains a compound having an ester and / or sulfosuccinic acid alkyl ester salt structure.

Further, the image removal accelerating liquid of the present invention is prepared by mixing an aqueous solution of a compound having an amino acid structure with a fluorinated carboxylic acid compound, and then adding a compound having a sulfosuccinic acid alkyl ester and / or a sulfosuccinic acid alkyl ester salt structure. And then dissolved. According to this production method, by mixing the aqueous solution of the compound having an amino acid structure and the fluorinated carboxylic acid compound, the carboxyl group of the fluorinated carboxylic acid compound reacts with the amino group of the compound having the amino acid structure to form a fluorine-containing compound. An image removal accelerating liquid comprising an aqueous solution containing a hydrophobic portion other than the carboxyl group of the carboxylic acid compound, a hydrophilic portion of the compound having an amino acid structure, and a compound having a sulfosuccinic acid alkyl ester and / or a sulfosuccinic acid alkyl ester salt structure is obtained. be able to. In this image removal accelerating solution, the hydrophobic portion other than the carboxyl group of the fluorinated carboxylic acid compound and the hydrophilic portion of the compound having an amino acid structure show a behavior like a surfactant, and further, a surfactant is used as an alkyl sulfosuccinate. It contains a compound having an ester and / or sulfosuccinic acid alkyl ester salt structure.

The reason why an image removal accelerating liquid can be obtained by mixing a fluorine-containing carboxylic acid compound with at least one of a compound having an amino acid structure and a compound having an amino group is as follows. That is, for example, a compound having an amino acid structure is soluble in water with an ampholyte having an amino group and a carboxyl group.
The PK value is close to the standard value of glycine (PK1 = 2.4, PK2 = 9.8), and becomes lower than that of normal fatty acids and amines due to electrostatic effect. And can bind to both acids and alkalis, and can form salts with each. Therefore,
For example, when an aqueous solution of a compound having an amino acid structure and a fluorinated carboxylic acid compound that is generally poorly soluble in water are mixed, an amino group of the compound having an amino acid structure and a carboxyl group of the fluorinated carboxylic acid compound react with each other, resulting in hydrophobicity. An image removal accelerating liquid comprising an aqueous solution containing an acidic fluorinated carboxylic acid residue and a hydrophilic amino acid residue can be obtained.

[0024]

Embedded image (Here, R represents an alkyl group, and PK represents an acid-alkali dissociation constant.)

The content ratio of the fluorinated carboxylic acid compound, the compound having an amino acid structure and the compound having an amino group in the image removal accelerating solution is preferably an equimolar ratio of each acid and base. If the molar ratio is not equimolar, one of the fluorine-containing carboxylic acid compound, the compound having an amino acid structure and the compound having an amino group becomes excessive, and the excess compound is present as an impurity, thereby facilitating image removal. The performance as a liquid will deteriorate. The content of the fluorine-containing carboxylic acid compound, the compound having an amino acid structure and / or the compound having an amino group is preferably 0.01 to 10% of the image removal accelerating liquid.
It is preferably 70% by weight, particularly preferably 1 to 20% by weight.

Next, the hydrophobic image is peeled off from the recording material having the hydrophobic image formed of the thermo-flexible or thermo-softening image forming substance by using the above-mentioned image removal accelerating liquid, and the recording is performed. The method of regenerating the material will be described in more detail. Spraying or applying an image removal accelerating liquid to the hydrophobic image forming surface of a recording material having a hydrophobic image formed by a thermo-flexible or thermo-softening image forming substance, Immerse the recording material with the image,
A small amount of an image removal accelerating liquid is applied to a recording material having a hydrophobic image,
For example, the hydrophobic image is applied at an application amount of 0.3 g / A4 or less (the application amount of the image removal accelerating liquid per the recording material of the A4 plate) or less, and the hydrophobic image is brought into contact with the peeling member under heat and pressure. By transferring the image to the peeling member, it stretches on the recording material,
The hydrophobic image can be sufficiently peeled and removed from the recording material without causing wrinkles, waving, curling, etc., and dyeing due to a coloring agent, a polarity controlling agent, or the like.

Further, when a hydrophobic image is formed by copying or recording, the reproduced recording material is excellent in fixability of the hydrophobic image.

The amount of the image removal accelerating liquid applied to the recording material is preferably 0.05 g to 4 g per one recording material A4. Amine hydrochloride and surfactant in image removal accelerating liquid, amine hydrochloride and fluorine-containing carboxylic acid compound and surfactant, at least one of amine hydrochloride and compound having amino acid structure and compound having amino group, and surfactant The content of an amine hydrochloride, a fluorine-containing carboxylic acid compound, a compound having an amino acid structure and a compound having an amino group and a surfactant, or a content of a compound having an amino acid structure and a compound having an amino group And the content of the compound having a sulfosuccinic acid alkyl ester and / or a sulfosuccinic acid alkyl ester salt structure or the content of these and the fluorine-containing carboxylic acid compound is 0.05 to
70% by weight is preferred.

In applying the image removal accelerating liquid, a low concentration image removal accelerating liquid is applied to the recording material, and then a high concentration image removal accelerating liquid is applied, or the high concentration image removal accelerating liquid is applied. After application to the recording material, the image removal accelerating liquid may be applied plural times, for example, by applying a low-density image removal accelerating liquid. According to the method of applying the image removal accelerating liquid a plurality of times as described above, even if the content of the compound in the image removal accelerating liquid and the applied amount of the image removal accelerating liquid are reduced, the hydrophobic image can be formed from the recording material. The recording material can be sufficiently peeled and removed, and the recording material can be reproduced without causing elongation, wrinkling, waving, curling, etc., and dyeing by a coloring agent or a polarity controlling agent. .

When the image removal accelerating liquid is applied a plurality of times, for example, only water is used for the image removal accelerating liquid, or
A low-concentration image removal accelerating solution containing 3% by weight or less of amine hydrochloride and a surfactant in the image removal accelerating solution, or a fluorinated carboxylic acid compound, a compound having an amino acid structure, and an amino acid in the image removal accelerating solution. A low-density image removal accelerating liquid having a content of at least one compound having a group and a surfactant of 3% by weight or less is used in an amount of 0.1% per recording medium A4.
A high-concentration image removal accelerating liquid having a content of 5 to 20% by weight of an amine hydrochloride and a surfactant in the image removal accelerating liquid, or a fluorine-containing carboxylic acid in the image removal accelerating liquid; A high-concentration image removal accelerating liquid having a content of at least one of a compound having an amino acid structure and a compound having an amino group and a surfactant having a content of 5 to 20% by weight is used in an amount of 0.01 g to 0.01 g per recording medium A4. What is necessary is just to give 0.3 g.

As the recording material in the method for reproducing a recording material of the present invention, a recording material in which at least a hydrophobic image forming surface is formed of a layer which swells with water is preferable. At least the hydrophobic image-forming surface is a recording material composed of a paper layer containing cellulose fibers as a main component, at least the hydrophobic image-forming surface is a water-soluble polymer substance,
For example, polyethylene glycol, acrylic acid polymer,
Examples of the recording material include a layer having a partially crosslinked structure containing a methacrylic acid polymer or the like as a main component. More specifically, commercially available papers such as general copy paper or recording paper containing a cellulose fiber as a main component, At least the hydrophobic image forming surface of the plastic film is laminated with a paper-based layer containing cellulose fibers as a main component, or the surface is a layer swelling with water, for example, a layer having a partially crosslinked structure such as an acrylic acid polymer or a methacrylic acid polymer. A formed plastic film can be exemplified.

Examples of the recording material having a hydrophobic image suitable for reproduction by the recording material reproducing method of the present invention include a usual electrophotographic method, a thermal transfer method, an ink jet method using a hot melt ink, and an ink jet method. Hydrophobicity formed using heat-flexible or heat-softening image-formed products such as printing methods (dry toner and wet toner for developing electrostatic latent images, hot-melt ink sheets, hot melt inks, etc.) A recording material having an image is exemplified.

When the image removal accelerating liquid is applied to a recording material having such a hydrophobic image, an amine hydrochloride, a fluorine-containing carboxylic acid compound and a compound having an amino acid structure and / or an amino group By the action of a surfactant having a compound having the above and a surfactant contained in the image removal accelerating liquid, for example, the image removal accelerating liquid quickly and sufficiently penetrates into a paper layer mainly composed of cellulose fibers. . As a result, even if the application amount of the image removal accelerating liquid is small, the cellulose fibers that are in direct contact with the hydrophobic image are quickly swollen and deformed by water, and the contact area or contact area between the cellulose fibers and the hydrophobic image is reduced. Is reduced and the adhesive force between the hydrophobic image and the recording material is reduced, so that the hydrophobic image is easily peeled off from the recording material, and stretches, wrinkles, wavy, curls, and coloring agents on the recording material. Alternatively, the hydrophobic image can be sufficiently peeled and removed from the recording material without causing dyeing by the polarity control agent or the like.

Further, it is desirable to add a small amount of a water-soluble polymer substance to the image removal accelerating liquid. For example, in a hydrophobic image formed on a recording material having a paper-based layer containing cellulose fibers as a main component by adding a water-soluble polymer substance, an image existing in a concave portion of the paper-based layer due to entanglement of cellulose fibers. The forming substance and the water-soluble polymer material come into contact with each other and adhere to each other, and the water-soluble polymer material and the peeling member come into contact with each other, whereby the hydrophobic image is more reliably transferred to the peeling member. Can more sufficiently peel off and remove the hydrophobic image. The addition amount of the water-soluble polymer substance is preferably 0.1 to 20% by weight,
Particularly, 1 to 10% by weight is preferable. If the amount of the water-soluble polymer substance is too small, the effect of removing and removing the image forming substance existing in the concave portions or the like is not sufficiently exhibited. On the other hand, if the amount of the water-soluble polymer substance is too large, the rigidity of the reproduced recording material becomes too large, and it is difficult to reuse the recording material for copying or recording.

Specific examples of the water-soluble polymer include, for example, carboxymethylcellulose, polyvinyl alcohol, starch, alginate, gum arabic, gelatin,
Polyacrylate, polymethacrylate, styrene-maleic anhydride copolymer hydrolyzed compound salt, styrene-isobutylene-phthalimide copolymer hydrolyzed compound salt, hyaluronic acid, gellan gum, naphthalene sulfonic acid and formalin Examples include condensates, polyvinyl aryl sulfonates, water-soluble polyamides, hydroxyethyl cellulose, polyvinyl pyrrolidone, polyacrylamide, and the like. Further, a small amount of an organic solvent can be added to the high-density image removal accelerating liquid when the image removal accelerating liquid is applied to the recording material a plurality of times. With the addition of a small amount of organic solvent, the image removal accelerating liquid permeates the interface between the hydrophobic image and the recording material better, weakens the adhesiveness between the hydrophobic image and the recording material, and records the hydrophobic image. It can be more easily peeled off from the material. The addition amount of the organic solvent is preferably 0.1 to 30% by weight,
Particularly, 1 to 20% by weight is preferable. If the addition amount of the organic solvent is too small, it cannot affect the peeling and removal of the hydrophobic image, and if it is too large, it is not preferable in terms of safety for human body, disaster prevention and environment. Within the above range, particularly in the case of a non-volatile organic solvent, the amount of the high-density image removal accelerating liquid applied to the recording material is, as described above, for example, 0.01 g to 0 g per recording material A4. 0.3 g, the amount of impregnation into the recording material is approximately 0.00001 per one recording material A4 plate.
It falls within the range of about 0.09 g, and there is no problem in terms of safety, disaster prevention, and environment for the human body.

With the addition of such a small amount of the organic solvent and the application amount of the image removal accelerating liquid, the colorant and the polarity controlling agent contained in the toner hardly elute, and the reproduced recording There is almost no dyeing on the material. Examples of the organic solvent to be added to the high-density image removal accelerating liquid include methyl alcohol, ethyl alcohol, butyl alcohol, propyl alcohol, and isopropyl alcohol, and particularly preferred are nonvolatile water-soluble organic solvents. it can. Such non-volatile organic solvents include ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycol, 1,5
Polyhydric alcohols such as pentanediol, 2-methyl-2,4-pentanediol, 1,6-hexanediol, propylene glycol, dipropylene glycol, glycerin, ethylene glycol monoethyl ether, ethylene glycol monomethyl ether, ethylene glycol mono Butyl ether, diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, tetraethylene glycol monomethyl ether,
Ethers of polyhydric alcohols such as propylene glycol monomethyl ether, diethylene glycol monoethyl ether, triethylene glycol monoethyl ether, tetraethylene glycol monoethyl ether, propylene glycol monoethyl ether, N-methyl-2
-Pyrrolidone, 1,3-dimethylimidazolidinone, ε
-Heterocyclic compounds such as caprolactam and the like, but are not limited thereto. Particularly preferred nonvolatile organic solvents include polyhydric alcohols such as ethylene glycol and diethylene glycol.

As the peeling member used in the method for reproducing a recording material of the present invention, a material exhibiting a certain degree of adhesiveness or heat resistance to a hydrophobic image is preferable. Examples of the material include isoprene rubber, neoprene rubber, and the like. Synthetic rubber such as chloroprene rubber, silicone rubber, butadiene rubber, and fluoro rubber, natural rubber, epoxy resin such as bisphenol / epichlorohydrin condensate, alkyd resin, urea formaldehyde resin, butyl urea formaldehyde resin, butylated melamine formaldehyde resin, benzoguanamine formaldehyde Amino resins such as resins, phenolic thermosetting resins such as terpene phenol resins, phenol ether resins and phenol resins, polyvinyl chloride, polyvinylidene chloride, and vinylidene chloride-acrylonitrile copolymer Vinyl chloride - vinyl acetate copolymer,
Ethylene-vinyl acetate copolymer, ethylene-tetrafluoroethylene copolymer, vinyl copolymer such as polyvinylidene fluoride, vinyl polymer such as polyvinyl butyral, polyvinyl formal, polypropylene, polyethylene, polybutyl acrylate, polymethacrylic acid , Acrylic resin such as polymethyl methacrylate, polyimide, polyamide such as 6,6-nylon, 6-nylon, polycarbonate, polyether sulfone, polyether ether ketone, polyethylene terephthalate,
Polyethylene naphthalate, polyester such as aromatic polyester, polyphenylene sulfide, polyparabalic acid, polyether nitrile, thermoplastic or thermosetting synthetic resin such as aramid, nickel, stainless steel, metals such as aluminum and its oxides,
Ceramic materials and the like can be mentioned.

The repeated use of the peeling member is advantageous in various points, such as lowering the recycling cost, and in that case, relatively high heat resistance and surface stability are required. Examples of preferred release members from the image removal characteristics and durability include polyethylene terephthalate, polyethylene naphthalate, polyetheretherketone, polyphenylenesulfide, polyparabaranic acid, polyethernitrile, aramid, polyimide, polyetherimide, stainless steel, nickel , Alumite and the like. These materials can be used alone, but they can be laminated, alloyed, glass fiber, whiskers,
It can also be used in combination by adding other additives such as carbon, silica and titanium oxide.

As described above, as a recording material having a hydrophobic image particularly suitable for reproduction by the method for reproducing a recording material of the present invention, a hydrophobic image formed using toner by electrophotography can be used. Recording material having,
The toner is mainly composed of a resin component, a colorant,
It is composed of a polarity controlling agent and the like. The resin component of the toner includes, for example, a styrene resin, an acrylic resin, a methacrylic resin, a styrene-acrylic copolymer resin, a styrene-butylacrylic copolymer resin, a styrene-methacrylic copolymer resin, and a styrene resin. It is made of butadiene copolymer resin, polyester resin, epoxy resin thermoplastic resin or thermosetting resin, or a mixture of two or more of these resins. These resins have a glass transition point of 55 to 70 ° C and a softening point of 80 to 140.
° C. and generally shows hydrophobicity insoluble in water.

As the colorant, various pigments and dyes are used. For example, as a black colorant, carbon black, copper oxide, manganese dioxide, aniline black, activated carbon, ferrite, magnetite, etc., and as a yellow colorant, cadmium yellow, Graphite, zinc yellow, mineral fast yellow, navel yellow, banza yellow G, banza yellow 10G, quinoline yellow lake, yellow iron oxide, nickel titanium yellow, naphthol yellow S,
Benzidine Yellow G, Benzidine Yellow GR, Permanent Yellow NCG, Tartrazine Lake, etc., as red coloring agents, red lead, molybdenum orange, permanent orange GTR, pyrazolo orange, balkan orange, indanthrene brilliant orange RK,
Benzidine Orange G, Indanthrene Brilliant Orange GK, Bengala, Cadmium Red, Lead Red, Permanent Red 4R, Risor Red, Pyrazolone Red, Watching Red, Lake Red C, Lake Red D, Brilliant Carmine 6B, Eosin Lake, Rhodamine Lake B , Alizarin Lake, Brilliant Carmine 3B, Permanent Orange GTR, Vulcan Fast Orange GG, Permanent Red F4RH, Permanent Carmine FB, etc., and as the blue colorant, navy blue, cobalt blue, alkali blue lake, Victoria blue lake, phthalocyanine blue, etc. Used.

The polarity control agent includes a positive charge control agent and a negative charge control agent. Examples of the positive charge control agent include nigrosine base EX, quaternary ammonium salts, polyamine compounds and imidazole compounds. Chromium complex salt type azo dyes, copper phthalocyanine dyes, chromium complex salts, zinc complex salts, aluminum complex salts, calixarene compounds and the like are known as the property control agent. When the hydrophobic image formed by the toner is peeled off from the recording material using the image removal accelerating liquid, the pigment or dye contained as a colorant or a polarity control agent in the toner elutes and dyes the recording material. However, by using the image removal accelerating liquid of the present invention, the hydrophobic image can be peeled off from the recording material without causing such dyeing.

[0042]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited thereto.

Example 1 After weighing perfluorooctanoic acid, glycine and diethylamine as an acid and a base, respectively, so as to have an equimolar ratio, glycine was dissolved in water, and diethylamine was added to the aqueous glycine solution. After dissolution, perfluorooctanoic acid was added and dissolved to bring the total concentration to 10% by weight. To this mixed aqueous solution, a surfactant of dioctyl sulfosuccinate (Aerosol OT-100, manufactured by Mitsui Cytec Co., Ltd.) was added to a concentration of 10% by weight to produce an image removal accelerating liquid. Normal PPC copier (Ricoh, RICO
PY copy paper having a toner image formed by PY FT2200) is immersed in the above-described image removal accelerating liquid.
0.5 g / A4 (A4
After applying the liquid), it is wound over a plurality of heating rollers 3 arranged in a staggered and continuous contact state as shown in FIG. 1 and heated to 98 ° C. The PPC copy paper is sandwiched between the peeling member 1 made of endless belt-shaped polyetheretherketone and the holding belt 2, and the PPC copy paper is conveyed between the rollers.
When the toner image was peeled and removed from the PC copy paper, the toner image was transferred to a peeling member and was sufficiently peeled and removed from the PPC copy paper, and no elongation, wrinkling, waving, curling, etc. occurred, and there was no dyeing. A plain PPC copy sheet free of generation was obtained. When a toner image was formed again by the above-mentioned PPC copying machine using the reproduced PPC copying paper, a toner image having good fixability was obtained as in the case of using a new unused PPC copying paper. After forming a toner image with the PPC copying machine using the regenerated PPC copying paper, the operation of applying the image removal promoting liquid and peeling and removing the toner image again was repeated five times. The image is sufficiently removed, the plain PPC copy paper without wrinkles, wavings, curls, etc., and without the occurrence of dyeing is reproduced, and the same quality as when a new unused copy paper is used. A toner image was obtained.

Example 2 A toner image was peeled off from a PPC copy sheet having a toner image in the same manner as in Example 1 except that an image removal accelerating liquid was produced using triethylamine instead of diethylamine in Example 1. In addition, the same operation as in Example 1 was obtained when the operations of forming the toner image and removing and removing the toner image were repeated five times by repeatedly using the PPC copy sheet reproduced in the same manner as in Example 1.

Example 3 A toner image was prepared from PPC copy paper having a toner image in the same manner as in Example 1 except that an image removal accelerating liquid was prepared using 6-aminocaproic acid instead of glycine in Example 1. The same operation as in Example 1 was obtained when the operation of forming a toner image and removing and removing the toner image was repeated five times by repeatedly using the PPC copy sheet reproduced in the same manner as in Example 1. Was.

Example 4 In place of the surfactant of dioctyl sulfosuccinate in Example 1, a surfactant of dihexyl sulfosuccinate (Aerosol MA-80, manufactured by Mitsui Cytec Co., Ltd.) was used, and its concentration was 20% by weight. %, Except that the toner image is peeled and removed from the PPC copy sheet having the toner image in the same manner as in Example 1, and the PPC copy sheet reproduced in the same manner as in Example 1 is repeatedly used. The same operation as in Example 1 was obtained as a result of performing the operations of forming and peeling-off five times.

Example 5 Dioctyl sulfosuccinate obtained by replacing the sodium salt of aerosol OT-100 with a free sulfonic acid using an ion exchange resin (Amberlite IR-120B, manufactured by Organo Co.) was used instead of perfluorooctanoic acid. The toner image was peeled and removed from the PPC copy paper having the toner image in the same manner as in Example 1 except that the image removal accelerating liquid was produced.
When the operation of forming a toner image and removing and removing the toner image was repeated five times using PC copy paper, the same result as in Example 1 was obtained.

Example 6 In Example 1, triethanolamine was used in place of glycine and diethylamine, and perfluorooctanoic acid was added to and dissolved in an aqueous solution of triethanolamine to give a total concentration of 10% by weight. The toner image was peeled and removed from the PPC copy paper having the toner image in the same manner as in Example 1 except that the image removal accelerating liquid was manufactured as described above. The operations of forming a toner image and removing and removing the toner image were repeated five times, and the same results as in Example 1 were obtained.

Example 7 After weighing perfluorooctanoic acid and triethylamine so as to have an equimolar ratio, triethylamine was dissolved in water, and perfluorooctanoic acid was added to the aqueous triethylamine solution to dissolve it. The total concentration was 10% by weight. In this mixed aqueous solution, the concentration of a surfactant of dioctyl sulfosuccinate (Aerosol OT-100, manufactured by Mitsui Cytec Co., Ltd.) and the concentration of triethylamine hydrochloride are each 10% by weight.
To prepare an image removal accelerating liquid.

An ordinary PPC copying machine (RIC, RIC
OPY FT2200) is immersed in a PPC copy sheet having a toner image formed by the image removal accelerating liquid.
2.5 g / A4 (A
After applying the amount of liquid contained per 4 plate paper), FIG.
98 ° C arranged in a staggered and continuous contact state as shown in
The PPC copy paper is sandwiched between a holding member 2 and an exfoliating member 1 made of endless belt-shaped polyetheretherketone, which is stretched over a plurality of heating rollers 3 heated to a predetermined temperature. When the toner image is peeled and removed from the PPC copy paper by transporting the paper, the toner image is transferred to a peeling member and is sufficiently peeled and removed from the PPC copy paper, and a plain PP without dyeing is generated.
C copy paper was obtained. When a toner image was formed again by the above-mentioned PPC copying machine using the reproduced PPC copying paper, a toner image having good fixability was obtained as in the case of using a new unused PPC copying paper. After forming a toner image with the PPC copying machine using the regenerated PPC copying paper, the operation of applying the image removal promoting liquid and peeling and removing the toner image again was repeated five times. The image was sufficiently removed, a plain PPC copy sheet free of staining was reproduced, and a toner image of the same quality as when a new unused copy sheet was used was obtained.

Example 8 PPC copy paper having a toner image in the same manner as in Example 7, except that diethylamine and diethylamine hydrochloride were used in place of triethylamine and triethylamine hydrochloride in Example 7 to prepare an image removal accelerating liquid. And the operation of forming and removing the toner image was repeated five times by repeatedly using the PPC copy sheet reproduced in the same manner as in Example 7. The result similar to that in Example 7 was obtained. was gotten.

Example 9 PPC having a toner image in the same manner as in Example 7 except that an image removal accelerating liquid was produced in place of triethylamine and triethylamine hydrochloride in Example 7 except that monoethylamine and monoethylamine hydrochloride were used. The toner image was separated and removed from the copy sheet, and the operation of forming and removing the toner image was repeated five times by repeatedly using the PPC copy sheet reproduced in the same manner as in Example 7. As in Example 7, Results were obtained.

Example 10 In Example 7, the concentration of aerosol OT-100 was 2
0% by weight, and a toner was prepared from PPC copy paper having a toner image in the same manner as in Example 7, except that an ethylene glycol was added to a concentration of 5% by weight to produce an image removal accelerating liquid. The image was peeled and removed, and the operation of forming and removing the toner image was repeated five times by repeatedly using the PPC copy sheet reproduced in the same manner as in Example 7. As a result, the same result as in Example 7 was obtained. Was done.

Example 11 After weighing perfluorooctanoic acid, glycine and diethylamine as an acid and a base, respectively, so as to have an equimolar ratio, glycine was dissolved in water, and diethylamine was added to the aqueous glycine solution. After dissolution, perfluorooctanoic acid was added and dissolved to bring the total concentration to 2% by weight. A surfactant of dioctyl sulfosuccinate (Aerosol OT-100, manufactured by Mitsui Cytec Co., Ltd.) was added to the mixed aqueous solution so as to have a concentration of 1% by weight to prepare an image removal accelerating liquid. Normal PPC copier (RICOPY, manufactured by Ricoh Company)
FT2200), a toner image is formed on an OHP sheet having a water-swelling layer containing a polyacrylic acid resin as a main component and having a partially crosslinked structure, and the OHP sheet having the toner image is immersed in the image removal accelerating liquid for 3 seconds. When the OHP sheet is closely held between a peeling member and a holding member made of polyetheretherketone and conveyed under pressure between two heating rollers heated to 100 ° C. and discharged from the heating roller. At the same time, when the OHP sheet was separated from the release member, the toner image was transferred to the release member and
The plain PPC copy paper was sufficiently peeled and removed from the HP sheet. Using the regenerated OHP sheet, the above P
When a toner image was formed again by the PC copying machine, a toner image having good fixability was obtained as in the case where a new unused OHP sheet was used. Also, the regenerated OH
After a toner image was formed with the PPC copying machine using the P sheet, the operation of applying the image removal accelerating liquid and peeling and removing the toner image again was repeated 10 times. As a result, the toner image was always sufficiently removed. The plain OHP sheet was reproduced, and a toner image having the same quality as that obtained by using new unused copy paper was obtained.

Example 12 A high-density image removal accelerating liquid No. 1 was produced. Surfactant of sulfosuccinic acid dioctyl ester salt ... 35 parts by weight (Aerosol OT-100, manufactured by Mitsui Cytec Co., Ltd.) Equimolar mixture of perfluorooctanoic acid, glycine and diethylamine as acid and base ... 14 weight parts Ethylene glycol 8.8 weight parts 2-methyl-2,4-pentanediol ……………………………………………………………………… 8.8 weight parts 2-methyl-2,4-pentanediol 8.5 parts by weight Equimolar mixture of perfluorooctanoic acid and diethylhexylamine ………………………………………………… 1 part by weight Water ………… …………………… 32.7 parts by weight Normal PPC copier (RICOPY FT, manufactured by Ricoh Company)
PPC having a toner image formed according to (2200)
High-density image removal promoting liquid N on the toner image side of copy paper
o. After applying 0.3 g / A4 of water and 0.4 g / A4 of water to the toner image surface side, a staggered and continuous contact state as shown in FIG. The PPC copy paper is sandwiched between a holding member 2 and a peeling member 1 made of polyetheretherketone in the form of an endless belt, which is stretched over a plurality of heated heating rollers 3. When the toner image is peeled and removed from the PPC copy paper by transporting the toner, the toner image is transferred to a peeling member and is sufficiently peeled and removed from the PPC copy paper, and no elongation, wrinkling, waving, curling, etc. occurs. A plain PPC copy sheet free of dyeing was obtained. Using the recycled PPC copy paper, the PP
When a toner image was formed again by the C copying machine, a toner image having good fixability was obtained as in the case of using new unused PPC copy paper. Also, the reproduced PP
After forming a toner image with the PPC copying machine using the C copy paper, the high-density image removal accelerating liquid No. 1 and water were applied in the same manner as above, and the operation of peeling and removing the toner image was repeated five times. As a result, the toner image was always sufficiently removed, and no wrinkles, waving, curling, etc. occurred, and A plain PPC copy sheet without any occurrence of blemishes was reproduced, and a toner image of the same quality as when a new unused copy sheet was used was obtained.

Example 13 In Example 12, the high-density image removal accelerating liquid No. High-density image removal accelerating liquid No. 1 having the following composition in place of No. 1 2
The toner image was peeled and removed from the PPC copy sheet having the toner image in the same manner as in Example 12 except that the PPC copy sheet was used, and the toner image was formed in the same manner as in Example 12 by repeatedly using the reproduced PPC copy sheet. The same operation as in Example 12 was obtained when the operation of removing and peeling was performed five times. Surfactant of dioctyl sulfosuccinate ester 40 parts by weight (Aerosol OT-100, manufactured by Mitsui Cytec Co., Ltd.) Equimolar mixture of perfluorooctanoic acid and glycine ………………………… 8 parts by weight triethylamine hydrochloride 8 parts by weight ethylene glycol 8 parts by weight ethylene glycol …………………………………………………………… … 5 parts by weight Water …………………………………… 39 parts by weight

Example 14 In Example 12, a low-density image removal accelerating liquid N having the following composition was used instead of applying water to the toner image surface side.
o. Except that 0.2 g / A4 of 1 was added, the toner image was peeled off and removed from the PPC copy paper having the toner image in the same manner as in Example 12, and the reproduced PPC copy paper was repeatedly used, as in Example 12. Example 5 was repeated five times to form a toner image and to remove and remove the toner image.
The same result as in Example 2 was obtained. Surfactant of sulfosuccinic acid dioctyl ester salt ... 8 parts by weight (Aerosol OT-100, manufactured by Mitsui Cytec Co.) Equimolar mixture of perfluorooctanoic acid, glycine and diethylamine as acid and base ... ............ 10 parts by weight ethylene glycol ............ 2.5 parts by weight 2-methyl-2,4-pentanediol … 2.5 parts by weight Equimolar mixture of perfluorooctanoic acid and diethylhexylamine …………………………………………………… 1 part by weight Water ……… …………………………………… 76 parts by weight

Example 15 In Example 12, the high-density image removal accelerating liquid No. 1 in place of the high-density image removal accelerating liquid No. 1 of Example 13. 2
And the low-density image removal accelerating solution No. 14 of Example 14 was used instead of applying 0.4 g / A4 of water. 1 to 0.2
Except that g / A4 was added, the toner image was peeled off from the PPC copy sheet having the toner image in the same manner as in Example 12, and the regenerated PPC copy sheet was repeatedly used to form the toner image in the same manner as in Example 12. The same operation as in Example 12 was obtained when the operations of forming and peeling and removing were performed five times.

Example 16 A conventional PPC copying machine (RICOPY FT, manufactured by Ricoh Company)
PPC having a toner image formed according to (2200)
The low-density image removal accelerating liquid No. of Example 14 was placed on the toner image side of the copy sheet. No. 1 was applied at 0.2 g / A4, and then the high-density image removal accelerating liquid No. 12 of Example 12 was applied to the toner image surface side. After applying 0.2 g / A4 of No. 1, an endless belt which is arranged in a staggered and continuous contact state as shown in FIG. The PPC copy paper is sandwiched between a release member 1 made of a polyetheretherketone and a holding belt 2, and the PPC copy paper is conveyed between the rollers.
When the toner image was peeled and removed from the PC copy paper, the toner image was transferred to a peeling member and was sufficiently peeled and removed from the PPC copy paper, and no elongation, wrinkling, waving, curling, etc. occurred, and there was no dyeing. A plain PPC copy sheet free of generation was obtained. When a toner image was formed again by the above-mentioned PPC copying machine using the reproduced PPC copying paper, a toner image having good fixability was obtained as in the case of using a new unused PPC copying paper. Further, after forming a toner image with the PPC copying machine using the regenerated PPC copying paper, the low-density image removal accelerating liquid No. 1 is used.
1 and the high-density image removal accelerating liquid No. 1 The operation of applying 1 in the same manner as above and peeling and removing the toner image again was repeated five times. As a result, the toner image was always sufficiently removed, and no wrinkling, waving, curling, etc. occurred, and the occurrence of dyeing occurred. A blank PPC copy sheet without any waste was reproduced, and a toner image having the same quality as that obtained when a new unused copy sheet was used was obtained.

Example 17 In Example 16, the high-density image removal accelerating liquid No. 1 in place of the high-density image removal accelerating liquid No. 1 of Example 13. 2
The toner image was peeled off from the PPC copy sheet having the toner image in the same manner as in Example 16 except that the toner image was used, and the toner image was formed in the same manner as in Example 16 by repeatedly using the reproduced PPC copy sheet. The same operation as in Example 16 was obtained when the operation of removing and peeling was performed five times.

Example 18 In Example 12, the high density image removal accelerating liquid No. High-density image removal accelerating liquid No. 1 having the following composition in place of No. 1 3
And the toner image was peeled off from the PPC copy paper having the toner image in the same manner as in Example 12, except that 0.3 g / A4 of water was applied to the toner image surface side. The operation of forming a toner image and removing and removing the same was performed in the same manner as in Example 12 by repeatedly using
The same results as in Example 12 were obtained when the test was performed twice. Dioctyl sulfosuccinate ester surfactant 7.5 parts by weight (Aerosol OT-100, manufactured by Mitsui Cytec Co., Ltd.) Ion exchange resin (Amberlite IR-120B, manufactured by Organo Corporation) with sodium in aerosol OT-100 Equimolar mixture of disulfonic acid sulfosuccinate, whose salt is free of sulfonic acid and triethanolamine as acid and base, 27 parts by weight Equimolar mixture of perfluorooctanoic acid and glycine ……………… 1.8 parts by weight 2-methyl-2,4-pentanediol 5 parts by weight Water ............ ……………………… 58.7 parts by weight

Example 19 In Example 12, the high-density image removal accelerating liquid No. 1 in place of the high-density image removal accelerating liquid No. 3
Was added to the toner image surface side, and water was applied to the toner image surface side. Example 1 except that 1 was added at 0.2 g / A4
In the same manner as in Example 2, the toner image was peeled and removed from the PPC copy sheet having the toner image, and the reproduced PPC copy sheet was repeatedly used to form the toner image and remove and remove the same as in Example 12. After performing five times, the same result as in Example 12 was obtained.

Example 20 In Example 16, low-density image removal accelerating liquid No. No. 1 was added at 0.1 g / A4, and the high-density image removal accelerating liquid No. 1
In place of the high-density image removal accelerating solution No. 18 of Example 18.
3, except that the toner image was peeled off from the PPC copy sheet having the toner image in the same manner as in Example 16, and the reproduced PPC copy sheet was repeatedly used in the same manner as in Example 16 to obtain the toner image. When the operations of formation and peeling and removal were performed five times, the same results as in Example 16 were obtained.

Example 21 In Example 16, the low-density image removal accelerating liquid No. No. 1 was added instead of water at a rate of 0.3 g / A4. 1 in place of the high-density image removal accelerating liquid No. 1 of Example 18. 3, except that the toner image was peeled off from the PPC copy sheet having the toner image in the same manner as in Example 16, and the reproduced PPC copy sheet was repeatedly used in the same manner as in Example 16 to obtain the toner image. When the operations of formation and peeling and removal were performed five times, the same results as in Example 16 were obtained.

Comparative Example 1 A surfactant of dioctyl sulfosuccinate (Aerosol OT-100, manufactured by Mitsui Cytec) was dissolved in water, and 0.5% by weight, 1% by weight, 1.5% by weight and 2% by weight were dissolved in water. Four kinds of image removal accelerating liquids each consisting of an aqueous solution of 1% by weight were prepared, and the toner images were peeled off from the PPC copy paper having the toner images in the same manner as in Example 1 except that these image removal accelerating liquids were used. Image peeling and removal were insufficient.

[0066]

According to the present invention, an image removal accelerating solution comprising an aqueous solution containing a high concentration of an amine hydrochloride and a surfactant without using a large amount of an organic solvent, or a compound having an amino acid structure And an aqueous solution containing a high concentration of at least one compound having an amino group and a compound having a sulfosuccinic acid alkyl ester and / or a sulfosuccinic acid alkyl ester salt structure in an aqueous solution. By using the liquid, even if the application amount of the image removal accelerating liquid is small,
The hydrophobic image-forming surface can sufficiently peel off and remove the hydrophobic image from the recording material composed of a layer swollen by water , and the reproduced recording material does not stretch, wrinkle, wavy or curl, In addition, it is possible to reproduce a recording material that is less stained by a coloring agent, a polarity control agent, or the like on the reproduced recording material.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view schematically illustrating an example of an apparatus that transfers a hydrophobic image to a peeling member by bringing a hydrophobic image into contact with a peeling member under heat and pressure.

[Explanation of symbols]

1 Peeling member 2 Holding belt 3 Heat roller 4. PPC copy paper with toner image

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-281566 (JP, A) JP-A-7-333877 (JP, A) JP-A-63-281172 (JP, A) JP-A-60-1985 118228 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) G03G 21/00

Claims (16)

(57) [Claims] 1. A recording material having a hydrophobic image formed of a thermo-flexible or thermo-softening image-forming substance ,
At least the hydrophobic image forming surface must be a layer that swells with water.
A recording material to be peeled and removed from the recording material by applying an image removal accelerating liquid to the layer, bringing the hydrophobic image into contact with the release member under heat and pressure, and transferring the hydrophobic image to the release member. Wherein at least the hydrophobic image forming surface is characterized in that the image removal accelerating liquid is an aqueous solution containing at least an amine hydrochloride and a surfactant dissolved therein.
A method for reproducing a recording material comprising a layer which swells with water . 2. The method according to claim 1, wherein the surfactant is a compound having a sulfosuccinic acid alkyl ester and / or a sulfosuccinic acid alkyl ester salt structure.
At least the hydrophobic imaging surface described swells with water
A method for reproducing a recording material composed of layers . 3. The at least hydrophobic image forming surface according to claim 1, wherein the image removal accelerating liquid further contains a fluorine-containing carboxylic acid compound dissolved therein.
A method for reproducing a recording material comprising a layer to be formed . 4. The at least hydrophobic image forming surface according to claim 1, wherein the image removal accelerating liquid further contains at least one kind of a compound having an amino acid structure and a compound having an amino group. Swelled by water
A method for reproducing a recording material comprising a layer to be formed . 5. The method according to claim 1, wherein the amine hydrochloride is an alkylamine hydrochloride.
At least the hydrophobic image forming surface is from the layer swelled by water
Method for regenerating a recording material made. 6. alkylamine hydrochloride monoethylamine hydrochloride, less of claim 5, wherein the diethylamine hydrochloride or triethylamine hydrochloride
A method for reproducing a recording material comprising a layer whose hydrophobic image forming surface swells with water . 7. At least a hydrophobic material having a hydrophobic image formed by a heat-flexible or heat-softening image-forming substance.
Applying an image removal accelerating liquid to a recording material comprising a layer whose water-soluble image forming surface swells with water, bringing the hydrophobic image into contact with the release member under heat and pressure, and transferring the hydrophobic image to the release member. In the method for regenerating a recording material to be peeled off from the recording material by the method described above, the image removal accelerating liquid contains at least one of a compound having an amino acid structure and a compound having an amino group.
If less, characterized in that an aqueous solution which dissolves containing a compound having a seed and sulfosuccinic acid alkyl ester and / or sulfosuccinic acid alkyl ester salt structure
A method for reproducing a recording material comprising a layer whose hydrophobic image forming surface swells with water . 8. The method of claim 1, wherein at least the hydrophobic image forming surface is exposed to water.
8. The hydrophobic image forming surface according to claim 7, wherein the recording medium image removal accelerating liquid comprising a swelling layer further contains a fluorine-containing carboxylic acid compound dissolved therein .
A method for reproducing a recording material comprising a swelling layer . 9. At least a hydrophobic solution comprising an aqueous solution containing an amine hydrochloride and a surfactant dissolved therein .
An image removal accelerating liquid for a recording material, comprising a layer whose image forming surface swells with water . 10. The hydrophobic image forming surface according to claim 9, wherein the surfactant is a compound having a sulfosuccinic acid alkyl ester and / or a sulfosuccinic acid alkyl ester salt structure .
Image-removing accelerating liquid for a recording material, which comprises a layer . 11. The less of claim 9 or 10, wherein the containing dissolved fluorocarboxylic acid compound
In both cases, the hydrophobic image forming surface consists of a layer that swells with water.
An image removal accelerating liquid for recording materials . 12. at least one type, characterized by containing soluble claim 9, 10 or 11, wherein the compound having the compound and an amino group having an amino acid structure small
At least the hydrophobic imaging surface consists of a layer that swells with water
An image removal accelerating liquid for recording materials . 13. The method according to claim 9, wherein the amine hydrochloride is an alkylamine hydrochloride.
2. at least the hydrophobic image forming surface swells with water
Image-removing accelerating liquid for a recording material, which comprises a layer . 14. alkylamine hydrochloride monoethylamine hydrochloride, less of claim 13, wherein the diethylamine hydrochloride or triethylamine hydrochloride
At least the hydrophobic image forming surface must be a layer that swells with water.
Image removal accelerating liquid for recording materials . 15. An aqueous solution containing at least one of a compound having an amino acid structure and a compound having an amino group and a compound having a sulfosuccinic acid alkyl ester and / or a compound having a sulfosuccinic acid alkyl ester salt structure. At least hydrophobic image form
An image removal accelerating liquid for a recording material, comprising a layer whose surface is swollen by water . 16. The at least hydrophobic composition according to claim 15, which contains a fluorinated carboxylic acid compound.
An image removal accelerating liquid for a recording material, comprising a layer whose image forming surface swells with water .