JP2003082265A - Recording liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image recording method forming a high-quality image free from feathering and blotting at the color boundary on a conventional plain paper for recording in high image density at a high recording speed, an ink composition and a treating liquid for the recording method, to prevent the distortion of the image by incomplete drying, the staining of the paper by off-set and the deformation of the paper and to improve the water-resistance of the image. SOLUTION: The recording liquid is used in an image recording method comprising a step to mix the recording liquid containing at least a coloring agent on a transfer member with a treating liquid containing a reactive component reactive with at least one of reactive components of the recording liquid and a step to transfer the obtained mixture to a recording material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel transfer image forming method, and relates to a first liquid (herein referred to as "recording liquid" or "ink composition") capable of containing a colorant on a transfer body. And a component in the first liquid (herein also referred to as "one reactive component") to agglomerate or thicken the component in the first liquid (one reactive component). An image forming method in which a second liquid component (herein also referred to as "treatment liquid") containing a component (herein also referred to as "other reactive component") is mixed and then the mixed liquid is transferred onto a recording material. Regarding Further, an image forming apparatus for carrying out the image forming method, a first liquid and a second liquid capable of obtaining a good image in the image forming method, and a recording material capable of obtaining a good image in the image forming method. It is about. Particularly, the image forming method relates to an inkjet recording method, an inkjet ink composition, and a recording material for inkjet recording, which is formed by ejecting a first liquid as droplets from a nozzle according to an image.

[0002]

2. Description of the Related Art A recording method such as an ink jet recording method for recording an image by using ink containing a coloring material as droplets is excellent in that the printing mechanism is simple and noise is not generated. On the other hand, this image recording method has a problem in print quality that the image quality greatly changes depending on the paper quality of the recording medium. In addition, when high-speed recording is performed, the ink is not absorbed in the recording medium in time, so especially in color printing, ink of different colors mixes at the boundary of colors, causing bleeding, and recording after printing. When the medium is ejected from the recording device, there is a problem that the recorded image is disturbed because an image in a non-dried state is rubbed inside the recording device which performs high-speed printing.

As means for solving these problems, various recording materials suitable for ink absorption ink jet recording methods have been proposed. For example, JP-A-52-74340
The publication discloses an ink jet recording method in which a sizing agent is not added or the amount of the sizing agent is smaller than that of general paper. In addition, JP-A-52-530
Japanese Unexamined Patent Publication No. 12 discloses an inkjet recording paper in which a coating layer having a high ink absorbency is provided on a base paper having a Steckigt sizing degree of 1 second or less. However, the use of a special recording medium suitable for the ink jet recording method increases the cost because such a recording medium has a special coating, and a ballpoint pen, fountain pen, felt-tip pen,
There is a problem that it is inferior in writability with writing instruments such as pencils, and it is difficult to obtain. Therefore, in the inkjet recording method, it is desired that good image quality can be obtained on high-quality paper or copying paper which is generally used as a recording medium.

In order to use a commonly used paper,
Japanese Patent Laid-Open No. 55-65269 discloses a method of adding a surfactant or the like to lower the surface tension of the ink and increase its permeability, thereby increasing the rate of absorption into paper. . However, when an ink having high permeability is used, although the drying property is certainly improved, coloring materials such as dyes and pigments in the ink also penetrate deep into the paper together with the ink carrier. For this reason, when an image is recorded with an ink having high permeability, the image density is lowered, or the color material reaches near the back side of the paper, making it impossible to print on both sides of the paper. There was a problem.
Further, in the ink having the permeability, there are problems that feathering occurs, ink droplets easily spread on the paper, the print quality is degraded, and the image resolution is degraded. In order to solve such problems, various penetrating agents, feathering preventing agents and the like have been proposed. However, none of the penetration enhancers and the anti-feathering agents have sufficiently satisfied both the drying property and the image quality.

As another method for solving the above problem, Japanese Patent Laid-Open No. 56-89595 discloses that a recording medium is previously formed.
Carboxymethyl cellulose, polyvinyl alcohol,
A method is disclosed in which a polymer solution such as polyvinyl acetate is ejected from a head to adhere the solution, and then ink is ejected to form an image. However, with this method,
Due to the high viscosity of the polymer solution, it is difficult to eject the solution. In addition to the drawback that the polymer solution itself is poorly absorbed into paper, and the effect of improving the drying property of the ink is hardly recognized, the polymer component previously applied to the recording material is the same as the component in the ink. Since it does not exhibit the chemical reaction or the aggregating action, the above-mentioned problem that the image quality is deteriorated has not been solved yet.

JP-A-63-299970 and JP-A-63-299971 disclose a colorless or light color fixing solution containing a cationic compound or a polyvalent metal salt which insolubilizes a dye in an ink. , After applying to the recording medium,
A method of ejecting ink to form an image has been proposed. With this method, the effects of improving the image density, preventing strike-through, and improving the water resistance of the image are great. However, even if this method is used, in order to perform image recording at a high speed, it is necessary to increase the permeability of the ink into the recording medium, and similarly to the above, a level at which feathering and color bleeding can be sufficiently satisfied. It has not reached the point where it can be prevented.

In US Pat. Nos. 4,538,156 and 5,099,256, an ink image is formed on an intermediate transfer member by an ink jet recording method, and then the ink image is transferred from an intermediate transfer medium to a recording medium. A method called a transfer method has been proposed. In the intermediate transfer methods described in these publications, however, in the methods described in these prior applications, the recording head can be arranged away from the recording paper, and the nozzles of the recording head due to the adherence of paper dust. The objective can be achieved by preventing the clogging of the intermediate transfer body, but when ink droplets are applied onto the intermediate transfer body, it may spread unevenly or flow on the intermediate transfer body, or in the case of color recording. Does not solve the problem of improving the image quality because uneven color mixing (color bleeding) occurs and it is difficult to prevent image distortion.

JP-A-62-92849 and the like disclose US Pat. Nos. 4,538,156 and 5,099,256.
In order to improve the method according to the specification, an ink droplet is once ejected onto a transfer medium to form an ink image, and then most of the water content in the ink is evaporated on the intermediate transfer medium to form a concentrated ink. A method of transferring onto a recording medium such as paper has been disclosed. In this method, once a good image is formed on the intermediate transfer medium, an improvement effect for obtaining a good image quality on commonly used paper, so-called plain paper, is recognized. However, in these methods, since it takes time to concentrate the ink at room temperature, it is necessary to heat the intermediate transfer medium to accelerate the evaporation of the solvent in the ink, or the intermediate transfer medium having a non-absorptive surface cannot be used. However, there is a problem that uneven mixing of color inks (color bleeding) easily occurs. Furthermore, if the wettability of the surface of the intermediate transfer member changes due to repeated use, the spread of ink droplets changes, which makes it difficult to keep the image quality constant.

In Japanese Patent Laid-Open No. 6-002525, a silicone rubber is used for the surface layer of an intermediate transfer medium, and an ink composition having a liquid medium that penetrates into the silicone rubber is used. There is disclosed an ink jet recording method for improving image quality by utilizing physical property changes such as thickening of ink due to absorption by ink. In this method, the solvent species that permeate the transfer medium is limited, and as a liquid medium for the ink that is selected to exhibit permeability to silicone rubber, etc., a petroleum solvent, a fire, a hazard to the human body, etc. There is a drawback in that a liquid medium, which is problematic in terms of safety, must be used.
Further, for repeated use, a means for removing the liquid medium that has penetrated into the intermediate transfer medium by drying, suction, etc. is required, which increases the cost of the device and the ink medium described above due to drying. Has a problem in that it evaporates into the air and pollutes the air in the environment where the image forming apparatus is used.

In Japanese Patent Laid-Open No. 5-200999, a layer of a polymeric water absorbing agent such as an alkali metal salt of polyacrylic acid or a mesh layer having a small diameter is provided on the surface of an intermediate transfer member.
An apparatus is disclosed in which after absorbing a water component in a water-soluble ink applied to an intermediate transfer member, the remaining component is transferred to a recording medium. Such an apparatus is disclosed in Japanese Patent Laid-Open No. 62-928.
Although the occurrence of the color bleeding described in Japanese Patent Publication No. 49 can be reduced, the ink components such as pigments and dyes are easily fixed to the pores of the small-diameter mesh and the high-molecular water-absorbing agent, and repeated use causes intermediate transfer. It has been difficult to solve the problem that the water absorbency of the body is lowered and the image is stained because the coloring material remains. Furthermore, a means for evaporating the liquid medium in the ink absorbed by the intermediate transfer member or for removing it by suction is required, and it has not been possible to sufficiently meet the demands for high-speed printing and energy saving.

In Japanese Patent Laid-Open No. 10-58664, an anion-based ion exchange resin layer having a cation exchange property is provided on an intermediate transfer member, and an anionic dye having ammonium as a counter ion is used in the ink. When applied to the intermediate transfer member, it exchanges the ions in the dye,
An apparatus has been disclosed that reduces hydrophilicity and improves transfer characteristics. Also in this apparatus, the ion exchange layer is fixed to the intermediate transfer member, and therefore, JP-A-5-200999.
As in the case of the publication, it is necessary to regenerate the intermediate transfer member that has deteriorated due to repeated use. In addition, JP-A-5-20
A device according to Japanese Patent Publication No. 0999, JP-A-10-58664
The device according to the publication, in any case, in order to evaporate the water absorbed in the polymer water absorbent or the ion exchange resin,
In order to maintain the ion exchange ability of the ion exchange resin, it is necessary to heat the intermediate transfer member, which increases power consumption and is not suitable for high speed printing.

Republished patent WO / 98/05504 describes
An ink that reacts with the first liquid after depositing a first liquid containing a material that reacts with components in the ink on an intermediate transfer medium and transferring the first liquid attached on the intermediate transfer medium to a recording material An inkjet recording method is disclosed in which the composition is discharged onto a recording material to form an image. In this method, it is possible to reduce the amount of the first liquid adhering to the recording material and reduce curling and cockling of the paper used as the recording material. However, in order to achieve this method, the means for applying the ink composition to the recording material according to the image is:
A means for applying the first liquid to the intermediate transfer member of another system is required, and it is unavoidable that the image forming apparatus for carrying out this method becomes complicated and high in cost. In addition, when the liquid droplets of the ink composition are discharged onto the recording material to form an image and then the first liquid deposited on the intermediate transfer medium is transferred to the recording material, the ink permeates into the recording medium. Therefore, there is a drawback that it is difficult to obtain a sufficient effect for improving the image quality. Also, when the image is formed by using the ink composition on the recording material after transferring the first liquid adhered on the intermediate transfer medium to the recording medium, the first liquid penetrates into the recording material. Therefore, the effect of improving the image quality is insufficient, and since the reaction liquid is essentially applied to the recording paper, it is necessary to add the amount of the reaction liquid that penetrates into the paper to apply it. ,
Although the coating amount is smaller than that of the conventional method, the problem that the coating amount is still large has not been completely solved.

In Japanese Patent Laid-Open No. 96720/1993, water-absorbent resin particles that absorb ink are applied to a recording material, an image is formed by inkjet recording using the water-based ink, and then the water-absorbing resin particles are applied to the recording material. There is proposed an image forming apparatus for fixing the image on the sheet. With the proposed device, high-quality images with high image density can be obtained without bleeding even when plain paper is used, but it should be handled from the viewpoint of scattering prevention and inhalation into the human body by breathing. It is necessary that the particle size of the powder that can be processed is large to some extent, and if particles having a particle size of 5 μm or more, which can be handled normally, are applied, a relatively large amount of particles are applied to the recording material, resulting in cost reduction. It has the drawback of being expensive. In addition, since the device for applying the powder to the recording material is complicated, the cost of the device also increases, and further, the water-absorbent resin particles easily absorb moisture and become lumpy due to moisture absorption in the device or during storage, and the recording material absorbs water. It is easy to cause problems such as difficulty in uniformly applying the hydrophobic resin powder.

In JP-A-7-89067, a surfactant is applied to an intermediate transfer member, an image is formed on the intermediate transfer member to which the surfactant is added by an ink jet recording method, and the formed image is recorded. A method and apparatus for transferring to a recording material are disclosed. In this method, although the transfer efficiency of the ink to the recording material is improved, since the surfactant has no reactivity with the ink, the quality of the image formed on the transfer body is the same as that of the conventional one. It was essentially the same as the example, and color bleeding was likely to occur.

Japanese Unexamined Patent Publication (Kokai) No. 11-28862 proposes a method in which an ink thin film is applied to a transfer member, a liquid for solidifying the ink is printed thereon by ink jet recording, and the unsolidified ink portion is transferred to a recording paper. ing. This method
Since the ink is applied to the entire surface of the transfer body, there is a problem that the amount of unused ink increases and wasteful consumption of ink occurs. As described above, various proposals have been made for recording on plain paper with high image quality and high speed, but no sufficient solution has been proposed yet.

[0016]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art. That is, an object of the present invention is to provide an image recording method and image capable of obtaining a high-quality image on plain paper generally used as a recording material at high speed with high image density and without feathering or color boundary bleeding. To provide a recording device, an ink composition, and a treatment liquid. Another object of the present invention is image disturbance due to poor drying of ink even when printed on plain paper,
An object is to provide an image recording method and apparatus, an ink composition, and a treatment liquid that do not cause soiling of the background due to offset. Another object of the present invention is to provide an image recording method suitable for double-sided printing, in which the ink does not penetrate deep into the paper even when printed on plain paper, the image density is small when viewed from the side opposite to the image-printed surface, and the double-sided printing is performed. And an apparatus, an ink composition, and a treatment liquid. Another object of the present invention is to prevent the deformation of the paper such as cockling and curling, which is caused by the ink being absorbed by the paper even when printed on the plain paper, and to convey the recording medium in the print recording apparatus. It is an object of the present invention to provide an image recording method and apparatus, an ink composition, and a treatment liquid which can enhance the reliability of the above and facilitate the handling of the obtained print recording material.
Another object of the invention is to provide an image recording method and apparatus, an ink composition, and a treatment liquid that have a simple structure and consume less power. Another object of the present invention is to provide an image recording method and apparatus, an ink composition and a treatment liquid capable of recording at high speed. Another object of the present invention is to improve the water resistance of the image obtained on the final recording medium. Further, another object of the present invention is to perform repeated recording,
An object of the present invention is to provide a highly reliable image recording method and device which does not deteriorate image quality.

[0017]

Means for Solving the Problems The above-mentioned problems can be solved by (1) applying a recording liquid containing one reactive component of the present invention to an intermediate transfer member, and the one reactive component in the recording liquid. A reaction liquid containing at least the other reactive component capable of reacting with the intermediate transfer member is applied to the intermediate transfer member, and the recording liquid and the reaction liquid are mixed and brought into contact with each other on the intermediate transfer member so that the one reactive component and the other An image forming method of reacting a reactive component, and then transferring the mixed liquid to a recording material, wherein the recording liquid contains at least a coloring agent, and at least the recording liquid and the reaction liquid An image forming method, characterized in that one of them is applied to the intermediate transfer member as a mirror image of the formed image ",
(2) "A reaction liquid containing at least the other reactive component capable of reacting with one reactive component in the recording liquid is applied to the intermediate transfer member, and the recording liquid containing the one reactive component is added to the intermediate. It is applied to a transfer medium, and the recording liquid and the reaction liquid are mixed and contacted on the intermediate transfer medium to react the one reactive component with the other reactive component, and then the mixed liquid is recorded. An image forming method of transferring to a material, wherein the recording liquid contains at least a coloring agent, and at least one of the recording liquid and the reaction liquid is applied to an intermediate transfer body as a mirror image of an image to be formed. An image forming method characterized by being
(3) "One of the reactive components in the recording liquid that reacts with the other reactive component in the processing liquid is a colorant, and the colorant has a dye having an ionic group, or an ionic group Pigments that are bound, pigments that are dispersed with an ionic dispersant,
The image forming method as described in the above item (1) or (2), which is either a colored emulsion emulsified with an ionic surfactant, or (4) "the ionic group is an anion. The image forming method as described in the above item (3) ”, and the image forming method as described in the above item (4), wherein the anion is a carboxylic acid group. (6) “One of the reactive components in the recording liquid that reacts with the other reactive component in the treatment liquid is a water-soluble polymer compound and forms an ionic water-soluble polymer compound or a chelate. And (7) "The water-soluble polymer compound is an anionic polymer compound, which comprises a water-soluble polymer compound having a group capable of The image form according to item (6), characterized in that Method ", (8)" as the reactive component of one-way in the recording liquid that reacts with other reactive components in the processing liquid, the second features to include saccharides (3)
(9) "A resin emulsion having an ionic group at least on the surface of resin particles as one of the reactive components in the recording liquid that reacts with the other reactive component in the treatment liquid". Or (10) "a resin emulsion having an ionic group, which is emulsified with an anionic surfactant, or an anionic surfactant. The image-forming method according to the above item (9), characterized in that it is synthesized by polymerizing and condensing a monomer having a group (1), (11) "the surface of the resin particles contains a carboxylic acid group". The image forming method according to item (9) or (10) above, which further comprises a resin emulsion.

Further, the above-mentioned problem is (12) "intermediate transfer member of the present invention, a recording liquid applying means for applying a recording liquid containing one reactive component to the intermediate transfer member, and A reaction liquid applying means for applying to the intermediate transfer member a reaction liquid containing at least the other reactive component capable of reacting with one reactive component, and a recording medium after the recording medium is conveyed to the intermediate transfer member and after recording. And a recording medium pressing means for pressing the recording surface of the recording medium, which is opposed to the intermediate transfer body and is conveyed through the conveying path, to the intermediate transfer body. In the recording medium pressing means, the recording liquid by the recording liquid applying means and the reaction liquid by the reaction liquid applying means are mixed to cause at least partial reaction between the one reactive component and the other reactive component. After that, it is placed at a position where it is pressed against the recording medium. Transfer image forming and forming apparatus ”, (13)“ transfer image forming and forming apparatus as described in the above item (12), wherein the intermediate transfer member is further provided with a cleaning unit ”, (14) "One of the reactive components in the recording liquid that reacts with the other reactive component in the processing liquid is a colorant, and the colorant is a dye having an ionic group, or an ionic group is bound to the dye. The pigment, the pigment dispersed with an ionic dispersant, or the colored emulsion emulsified with an ionic surfactant, according to item (12) or (13) above. Image forming apparatus ", (15)" the image forming apparatus described in the item (14), wherein the ionic group is an anion ",
(16) "Image forming apparatus according to the item (15), wherein the anion is a carboxylic acid group", (1
7) “One of the reactive components in the recording liquid that reacts with the other reactive component in the treatment liquid is a water-soluble polymer compound,
An image forming apparatus according to item (14), which contains an ionic water-soluble polymer compound or a water-soluble polymer compound having a group capable of forming a chelate. ”, (18) The image forming apparatus according to item (17), wherein the water-soluble polymer compound is an anionic polymer compound, and (19) "a recording liquid which reacts with the other reactive component in the treatment liquid. (20) "Recording liquid which reacts with the other reactive component in the treatment liquid, characterized in that a saccharide is contained as one of the reactive components in the treatment liquid" As one of the reactive components, at least a resin emulsion having an ionic group on the surface of the resin particles is contained.
(4) Image forming apparatus ”, (21)“ A resin emulsion having an ionic group is emulsified with an anionic surfactant, or a monomer having an anionic group is polymerized and condensed. (22) "Image forming apparatus according to item (20), characterized in that the surface of the resin particles contains a resin emulsion containing a carboxylic acid group. The image forming apparatus according to item (20) or (21).

Further, the above-mentioned problem is (23) of the present invention.
"A step of mixing a recording liquid containing at least a colorant and a treatment liquid containing the other reactive component capable of reacting with at least one reactive component in the recording liquid on a transfer body,
Recording liquid used in an image forming method having a step of transferring the mixture to a recording material ", (24)" one of the reactive components in the recording liquid that reacts with the other reactive component in the treatment liquid is A colorant, which is a dye having an ionic group, a pigment having an ionic group bonded, a pigment dispersed with an ionic dispersant, and a colored emulsion emulsified with an ionic surfactant. (25) The recording liquid according to item (23) above, wherein the ionic group is an anion. Item 26. The recording liquid according to item (26), wherein the anion is a carboxylic acid group.
(5) Recording liquid ”, (27)“ One of the reactive components in the recording liquid that reacts with the other reactive component in the treatment liquid is a water-soluble polymer compound and is ionic water-soluble. (28) "Water-soluble polymer compound," which contains a polymer compound or a water-soluble polymer compound having a group capable of forming a chelate. Is an anionic polymer compound, and (29) "(29)" one of the recording liquids which reacts with the other reactive component in the treatment liquid. (30) "Recording liquid according to the above item (23), which comprises a saccharide as a reactive component", "(30)" One of the reactions in the recording liquid that reacts with the other reactive component in the treatment liquid As an active ingredient, resin emulsion having at least an ionic group on the surface of resin particles (31) The recording liquid according to the above (23), characterized in that the resin emulsion having an ionic group is emulsified with an anionic surfactant, or an anion. The recording liquid according to item (30) above, which is synthesized by polymerizing and condensing a monomer having a functional group ", (32)" The surface of the resin particle contains a carboxylic acid group. The recording liquid according to item (30) or (31) above, which further comprises a resin emulsion.

The present invention will be described in detail below. The recording liquid of the present invention is a recording liquid used in a novel inkjet recording method, and more specifically, a recording liquid containing at least a coloring agent is applied to a transfer body as droplets according to an image signal. A step (A), a step (B) of applying a reaction liquid containing a component capable of reacting with at least one component of the recording liquid to an intermediate transfer member (herein also simply referred to as “transfer member”), It is a recording liquid used in an image forming method having a step (C) of contact-mixing a recording liquid and the reaction liquid on a transfer body, and a step (D) of transferring the mixture to a recording material. Either step (A) or step (B) may precede. For example, when the first liquid is present alone on the transfer body, it has a high viscosity and / or
Or, if it has wetting characteristics, the process (A)
The step (B) can be performed before the step (B), and when the first liquid is more likely to invade the transfer body and / or when the volatility is too high, the step (B) is performed before the step (A). In this case, the reaction solution may be referred to as “pretreatment solution” hereinafter).
Further, at least one of the first liquid (recording liquid) and the second liquid (reaction liquid) is applied to the transfer body as a droplet in accordance with an image signal. (I) The first liquid (recording liquid) can be applied as droplets to the transfer body according to an image signal, and the second liquid (reaction liquid) can be applied and supplied, for example, to the entire surface of the image recording scheduled area. (Ii) or when the second liquid (reaction liquid) also has a property of being extremely suitable for being applied as droplets according to the image signal, the first liquid (recording liquid) and the second liquid (reaction liquid) Both) can be applied as droplets according to the image signal, and coloring is generated only when (iii) or the first liquid (recording liquid) is mixed and reacted with the second liquid (reaction liquid). On the contrary, when a leuco dye that develops color only when it comes into contact with an acid material is used as a colorant, the second liquid (reaction liquid) can be applied to the transfer body in the form of droplets according to an image signal. ,
(I) or (ii) is preferable. The configuration of the apparatus used in the above image forming method is as follows.

The structure of the apparatus used in the above image forming method is as follows. FIG. 1 is a diagram showing an example of a configuration diagram of an image recording apparatus, in which a pretreatment liquid (reaction liquid) is applied to a transfer body (1) by a pretreatment liquid applying unit, that is, a reaction liquid applying unit (2) (inkjet head). ) Is painted. Recording is performed on the transfer body (1) coated with the pretreatment liquid by the inkjet head (3) as a recording liquid applying means, and an image is formed on the transfer body (1). The ink (recording liquid) reacts with the pretreatment liquid (reaction liquid) to be in a high viscosity state. The recording medium (4) is a recording medium pressing means, here a pressure roller (6).
The image on the transfer body (1) is transferred onto the recording medium (4) while being conveyed through a conveyance path between the transfer body (1) and the transfer body (1). Cleaning means (5) for cleaning the transfer body (1) is provided between the transfer portion and the pretreatment liquid applying means, that is, the reaction liquid applying means (2).

FIG. 2 is another view showing an example of the configuration of the image recording apparatus, in which the transfer member (1) is pretreated by the pretreatment liquid applying means, that is, the reaction liquid applying means (7) (application roller). The treatment liquid (reaction liquid) is applied. Recording is performed by the inkjet head (3) on the transfer body (1) coated with the pretreatment liquid, and an image is formed on the transfer body (1). The ink (recording liquid) reacts with the pretreatment liquid to be in a high viscosity state. The recording medium (4) is conveyed through a conveying path between the recording medium pressure contact means, here the pressure roller (6) and the transfer body (1), and at this time, the image on the transfer body (1) is the recording medium (4). Is transcribed to. Cleaning means (5) for cleaning the transfer body (1)
Are provided between the transfer section and the pretreatment liquid applying means, that is, the reaction liquid applying means (7).

FIG. 3 is still another view showing an example of the configuration of the image recording apparatus. A pretreatment liquid (reaction liquid) is applied. Recording is performed by the inkjet head (3) on the transfer body (1) coated with the pretreatment liquid, and an image is formed on the transfer body (1). The ink (recording liquid) reacts with the pretreatment liquid to be in a high viscosity state. The recording medium (4) is conveyed between the recording medium pressure contact means, here, the pressure roller (6) and the transfer body (1).
The image on the transfer body (1) is transferred to the recording medium (4).
Cleaning means (5) for cleaning the transfer body (1) is provided between the transfer section and the pretreatment liquid applying means, that is, the reaction liquid applying means (8).

FIGS. 4, 5 and 6 are views showing the range of adhesion of the pretreatment liquid (reaction liquid) on the transfer body. FIG. 4 shows the pretreatment liquid on the transfer body of the recording medium. An example is shown in which it is attached to a range corresponding to almost the entire surface. The pretreatment liquid is adhered onto the transfer body in an area corresponding to almost the entire surface of the recording medium by an inkjet head, a coating roller, or a spray nozzle. FIG. 5 shows an example in which the pretreatment liquid is deposited on the transfer body in an area corresponding to the image forming area of the recording medium.
The pretreatment liquid is attached onto the transfer body in an area corresponding to the image forming area (area excluding white information) of the recording medium by an inkjet head or a spray nozzle. Figure 6
An example is shown in which the pretreatment liquid is attached to the area on the transfer body corresponding to the image information of the recording medium. The pretreatment liquid is attached onto the transfer body by an inkjet head based on the same information as the image information.

The present invention is a recording liquid used in the above-mentioned image recording method or image recording apparatus. As the recording liquid, a recording liquid which has been conventionally used in an ordinary ink jet recording method can be used. Particularly, when the recording liquid is used in the above-mentioned image recording method or image recording apparatus, a preferable reaction liquid is a reaction liquid. Examples of the recording liquid include a material capable of promptly reacting with the above component. That is, when the component in the recording liquid that reacts with the treatment liquid (reaction liquid) is a coloring agent, the coloring agent has a dye having an ionic group, a pigment having an ionic group bonded, an ionic Either a pigment dispersed with a dispersant or a colored emulsion emulsified with an ionic surfactant is preferable, and in particular, an ionic group being an anion provides high material safety and low cost. Is preferred. Further, it is preferable to use an anionic material containing a carboxylic acid, which has high reactivity with the treatment liquid (reaction liquid) and can react with a small amount or a dilute treatment liquid, as the recording liquid. For example, a colorant containing an anionic group and a treatment liquid (reaction liquid) containing a cationic material cause aggregation of the colorant and thickening of the recording liquid by an ionic reaction, but since the ionic reaction occurs extremely quickly, In particular, when recording at high speed, it is possible to prevent image blurring and color bleeding. In the present invention,
From the viewpoint of safety, it is preferable to use an aqueous recording liquid as the recording liquid.

Specific examples of the anionic dye contained in the ink used in the present invention include dyes classified into acid dyes, direct dyes and food dyes in the color index. More specifically, as acid dyes and food dyes, C.I. I. Acid Yellow 17,23,42,44,
79, 142 C.I. I. Acid Red 1,8,13,14,18,
26, 27, 35, 37, 42, 52, 82, 87, 8
9, 92, 97, 106, 111, 114, 115, 1
34, 186, 249, 254, 289 C.I. I. Acid Blue 9,29,45,92,24
9 C. I. Acid Black 1, 2, 7, 24, 26,
94 C.I. I. Food Yellow 3,4 C.I. I. Hood Red 7, 9, 14 C.I. I. Hood black 1,2

As the direct dye, C.I. I. Direct Yellow 1, 12, 24, 26,
33, 44, 50, 86, 120, 132, 142, 1
44 C.I. I. Direct Red 1, 4, 9, 13, 17,
20, 28, 31, 39, 80, 81, 83, 89, 2
25,227 C.I. I. Direct Orange 26, 29, 62, 10
2 C. I. Direct Blue 1, 2, 6, 15, 22,
25,71,76,79,86,87,90,98,1
63, 165, 199, 202 C.I. I. Direct Black 19,22,32,3
8, 51, 56, 71, 74, 75, 77, 154, 1
68,171

As the reactive dye, C.I. I. Reactive. Black 3,4,7,11,1
2,17 C.I. I. Reactive. Yellow 1, 5, 11, 13,
14, 20, 21, 22, 25, 40, 47, 51, 5
5,65,67 C.I. I. Reactive. Red 1, 14, 17, 25,
26, 32, 37, 44, 46, 55, 60, 66, 7
4, 79, 96, 97 C.I. I. Reactive. Blue 1, 2, 7, 14, 1
5, 23, 32, 35, 38, 41, 63, 80, 95 and the like can be preferably used because of their high solubility, good color tone, and good water resistance when recorded by the method of the present invention. It is an example of a dye. In the present invention, the recording liquid is transferred to the recording material after being mixed with the processing liquid,
It is not necessary to use a dye showing good water resistance when used without a reaction solution. As the dyes, those containing 3 or more carboxyl groups and sulfonic acid groups in the molecule have high reactivity with the cationic material in the processing liquid, and the storage stability of the recording liquid and the anti-clogging property. It is preferable because the characteristics can be secured.

As the pigment that can be used in the recording liquid of the present invention, inorganic pigments and organic pigments can be used. As the inorganic pigment, a white pigment such as titanium oxide, zinc oxide, barium sulfate, or a black pigment such as iron oxide can be used.

The organic pigments include azo pigments (including azo lakes, insoluble azo pigments, condensed azo pigments, chelate azo pigments, etc.), polycyclic pigments (eg, phthalocyanine pigments, perylene pigments, perinone pigments, anthraquinone pigments, quinacridone). Pigments, dioxazine pigments, thioindigo pigments, isoindolinone pigments, quinofuraron pigments, etc., dye chelates (for example, basic dye type chelates,
Acid dye type chelates), nitro pigments, nitroso pigments, aniline black, etc. can be used. Further, carbon black manufactured by a known method such as a contact method, a furnace method, or a thermal method can be used. More specifically, for color, C.I. I. Pigment Yellow 1 (Fast Yellow G), 3, 12
(Disazo Yellow AAA), 13, 14, 17, 2
4, 34, 35, 37, 42 (yellow iron oxide), 53, 5
5, 81, 83 (Disazo Yellow HR), 95, 9
7, 98, 100, 101, 104, 408, 109,
110, 117, 120, 138, 153, C.I. I. Pigment Orange 5, 13, 16, 17, 36, 43,
51, C.I. I. Pigment Red 1, 2, 3, 5, 1
7, 22 (Brilliant First Scallet), 2
3, 31, 38, 48: 2 (Permanent Red 2B
(Ba)), 48: 2 (Permanent Red 2B (C
a)), 48: 3 (Permanent Red 2B (S
r)), 48: 4 (Permanent Red 2B (M
n)), 49: 1, 52: 2, 53: 1, 57: 1 (Brilliant Carmine 6B), 60: 1, 63: 1, 6
3: 2, 64: 1, 81 (Rhodamine 6G rake), 8
3, 88, 101 (Bengala), 104, 105, 10
6, 108 (Cadmium red), 112, 114, 1
22 (quinacridone magenta), 123, 146, 14
9, 166, 168, 170, 172, 177, 17
8, 179, 185, 190, 193, 209, 21
9, C.I. I. Pigment Violet 1 (Rhodamine Lake), 3, 5: 1, 16, 19, 23, 38, C.I.
I. Pigment Blue 1, 2, 15 (phthalocyanine blue R), 15: 1, 15: 2, 15: 3 (phthalocyanine blue E), 16, 17: 1, 56, 60, 63,
C. I. Pigment Green 1, 4, 7, 8, 10, 1
There are 7, 18, 36 and so on.

When a recording liquid containing a pigment as a colorant is used in the present invention, for example, a carbon black having a carboxyl group introduced by an oxidation reaction or a radical purified from a diazonium salt having a carboxyl group or a sulfonic acid group is used. Self-dispersing pigments made by reacting pigments such as carbon black, phthalocyanine, quinacridone,
Self-dispersing pigments made by reacting radical initiators containing carboxyl or sulfonic acid groups with pigments such as carbon black, phthalocyanine, quinacridone, self-dispersing properties by reacting pigment functional groups with carboxylic acid anhydrides. A pigment having an ionic group, particularly a carboxyl group, bonded by a covalent bond, such as a pigment, can be preferably used. These pigments can maintain an extremely stable dispersion state in a liquid medium mainly composed of water, and are excellent in the storage stability of the recording liquid and the anti-clogging property. Further, it has a high reactivity with the cationic material in the treatment liquid, and thus the effect of preventing image bleeding and color bleeding is extremely large.

The recording liquid using a pigment as a colorant which can be preferably used in the present invention is a recording liquid containing a pigment dispersed by an anionic polymer dispersant. Examples of the polymer dispersant having an anionic group include polyacrylic acid and its salts, polymethacrylic acid and its salts, and acrylic acid-
Acrylonitrile copolymer and its salt, acrylic acid-
Acrylic acid alkyl ester copolymer and its salt, styrene-acrylic acid copolymer and its salt, styrene-
Methacrylic acid copolymer and its salt, styrene-acrylic acid-acrylic acid alkyl ester copolymer and its salt, styrene-methacrylic acid-acrylic acid alkyl ester copolymer and its salt, styrene-α-methylstyrene-acrylic acid Copolymer and its salt, styrene-α
-Methylstyrene-acrylic acid copolymer-acrylic acid alkyl ester copolymer and salts thereof, styrene-maleic acid copolymer and salts thereof, vinylnaphthalene-maleic acid copolymer and salts thereof, vinyl acetate-ethylene copolymer Examples thereof include a combination and a salt thereof, a vinyl acetate-crotonic acid copolymer and a salt thereof, a vinyl acetate-acrylic acid copolymer and a salt thereof, and a β-naphthalenesulfonic acid formalin condensate. The polymer compound having these anionic groups can be used in the acid form, but an alkali metal salt such as sodium, potassium or lithium can also be used.

Among these dispersants, the preferred dispersants for use in the recording liquid of the present invention are polyacrylic acid and its salts, polymethacrylic acid and its salts, acrylic acid-acrylonitrile copolymer and its salts, Acrylic acid-alkyl acrylate copolymer and salts thereof, styrene-acrylic acid copolymer and salts thereof, styrene-methacrylic acid copolymer and salts thereof, styrene-
Acrylic acid-acrylic acid alkyl ester copolymer and salts thereof, styrene-methacrylic acid-acrylic acid alkyl ester copolymer and salts thereof, styrene-α-methylstyrene-acrylic acid copolymer and salts thereof, styrene-α- Methylstyrene-acrylic acid copolymer-acrylic acid alkyl ester copolymer and its salt, styrene-maleic acid copolymer and its salt, vinylnaphthalene-maleic acid copolymer and its salt, vinyl acetate-crotonic acid copolymer The use of a polymer dispersant containing a carboxyl group, such as a salt thereof, a vinyl acetate-acrylic acid copolymer and a salt thereof, has high reactivity with a cationic material in a processing liquid, causes image bleeding, and color. It is particularly preferable because the effect of preventing bleeding is extremely large.

Anionic surfactants can also be preferably used as the pigment dispersant. Specifically, fatty acids such as oleic acid and its salts, lauric acid and its salts, behenic acid and its salts, stearic acid and its salts, dodecyl sulfonic acid and its salts, decyl sulfonic acid and its salts. Alkyl sulfonic acid and its salt, lauryl sulfate, oleyl sulfate and other alkyl sulfate elters, dodecylbenzene sulfonic acid and its salt, lauryl benzene sulfonic acid and its salt, such as alkyl benzene sulfonic acid and its salt, dioctyl sulfosuccinic acid and Aromatic anionic surfactants such as salts thereof, dialkylsulfosuccinic acid and salts thereof such as dihexylsulfosuccinic acid and salts thereof, naphthylsulfonic acid and salts thereof, naphthylcarboxylic acid and salts thereof, polyoxyethylene alkyl ether acetate salts , Polyoxyethyl Disperse the pigment using a fluorinated anionic surfactant such as alkyl ether phosphate, polyoxyethylene alkyl ether sulfonate, fluorinated alkyl carboxylic acid and its salt, fluorinated alkyl sulfonic acid and its salt. Can be used. When using these surfactants as a dispersant for the pigment, in the present invention,
The use of a surfactant containing a carboxyl group such as an alkylcarboxylate, an alkylbenzenecarboxylate, and a polyoxyethylene alkyl ether acetate has a high reactivity with a cationic material in the treatment liquid and causes image bleeding,
It is particularly preferable in that the effect of preventing the occurrence of color bleed is extremely large.

When a recording liquid in which a pigment is dispersed is used,
The particle size of the pigment is not particularly limited, but it is preferable in the present invention to use a pigment ink having a particle size with a maximum frequency of 20 to 150 nm in terms of maximum number conversion. If the particle size exceeds 150 nm,
Not only is the pigment dispersion stability of the recording liquid deteriorated, but also the ejection stability of the recording liquid is deteriorated, and the image quality such as image density is deteriorated, which is not preferable. When the particle size is less than 20 nm, the storage stability of the recording liquid and the jetting property in the printer are stable, and when the pretreatment liquid is used, high image quality can be obtained. The reason is
Dispersion operation and classification operation become complicated, and it becomes difficult to economically produce the recording liquid.

Another preferable example of the coloring agent used in the recording liquid of the present invention is a recording liquid using a so-called colored emulsion in which colored resin fine particles are suspended. The colored resin fine particles are obtained by coloring a styrene-acrylic resin, a polyester resin, a polyurethane resin or the like with an oil dye, a disperse dye or a pigment. At least the shell-corresponding portion of the fine particles is formed of a hydrophilic resin such as polyacrylic acid or polymethacrylic acid, or an acidic group is added by adding an excess polybasic acid to the polyhydric alcohol when synthesizing polyester. By a method such as synthesizing so as to remain, or by suspending with an ionic surfactant such as a reactive surfactant, for example, anionic, colored fine particles in a liquid medium mainly composed of water. A suspended recording liquid can be obtained. Even when a recording liquid using a colored emulsion is used, it is obtained by emulsifying and polymerizing with the above-mentioned anionic surfactant, and at least the outer shell has hydrophilicity such as residues of polyacrylic acid, polymethacrylic acid and polybasic acid. It is particularly preferable to use an emulsion formed of the resin contained in the present invention because it has a high reactivity with the cationic material in the treatment liquid and has an extremely large effect of preventing image bleeding and color bleeding.

When the recording liquid is water-soluble, a hydrophilic polymer compound is added to the recording liquid of the present invention to enhance the thickening action and the aggregation action of the recording liquid by the reaction with the treatment liquid. The image quality can be improved. Particularly, by adding an anionic water-soluble polymer compound, a highly safe recording liquid can be obtained.

As the hydrophilic polymer compound which can be added to the recording liquid, in the natural system, gum arabic, traggan gum, guar gum, karaya gum, locust bean gum, arabinogalactone, pectin, quince seed starch and the like plant polymers, alginic acid, Carrageenan, seaweed macromolecules such as agar, animal macromolecules such as gelatin, casein, albumin, collagen, microbial macromolecules such as xanthene gum and dextran or shellac, and methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxy in semi-synthetic systems. Fibrin-based polymers such as propyl cellulose and carboxymethyl cellulose, starch-based polymers such as sodium starch glycolate and sodium starch phosphate, sodium alginate, propylene glycol alginate Seaweed-based polymers such as call ester,
In pure synthetic systems, vinyl-based polymers such as polyvinyl alcohol, polyvinylpyrrolidone, and polyvinyl methyl ether,
Non-crosslinked polyacrylamide, polyacrylic acid and its alkali metal salts, acrylic resins such as water-soluble styrene acrylic resin, water-soluble styrene maleic acid resin, water-soluble vinyl naphthalene acrylic resin, water-soluble vinyl naphthalene maleic acid resin, polyvinyl pyrrolidone, Examples thereof include polyvinyl alcohol and β-naphthalenesulfonic acid formalin condensate alkali metal salts. Even when a water-soluble polymer compound is used in a recording liquid, it is preferable to use a compound containing a carboxylic acid as an anion group because the reactivity with the cationic material in the processing liquid is high and image bleeding and color bleeding occur. It is particularly preferable in that the prevention effect is extremely large.

It is also preferable that the recording liquid of the present invention contains a saccharide, particularly a polysaccharide, as a component that reacts with the treatment liquid. Examples of saccharide compounds include alginic acid and its salts, uronic acid and its salts, aldonic acid and its salts, carrageenan and the like.

It is also preferable to add a colorant-free resin emulsion to the recording liquid of the present invention as a component that reacts with the treatment liquid. The resin emulsion strengthens the thickening action and the aggregating action of the recording liquid by the reaction with the processing liquid, and can improve the image quality. In particular, by including a negatively charged resin emulsion in the recording liquid, a highly safe recording liquid can be obtained. By using a resin emulsion that reacts with the processing liquid and causes a thickening / aggregating action as the recording liquid, the quality of the image on the transfer body can be improved, and at the same time, depending on the type of resin emulsion, the resin emulsion Forming a film on the recording material has the effect of improving the abrasion resistance, light resistance and water resistance of the printed matter. In particular, like the colored emulsion, emulsified with an anionic surfactant,
It is preferable to use a dispersed resin, and it is also preferable to use a capsule-type resin emulsion having an outer shell made of acrylic acid, methacrylic acid, or the like.

As the resin component of the suspension phase, acrylic resin, vinyl acetate resin, styrene-butadiene resin,
Examples thereof include vinyl chloride resin, acrylic-styrene resin, butadiene resin, and styrene resin. These resins are preferably polymers having both a hydrophilic portion and a hydrophobic portion. The particle size of these resin components is not particularly limited as long as it forms an emulsion, but 1
It is preferably about 50 nm or less, more preferably 5 to 10 nm.
Examples of commercially available resin emulsions having a size of about 0 nm include Microgel E-1002, E-5002 (styrene-acrylic resin emulsion, manufactured by Nippon Paint Co., Ltd.), Boncoat 4001 (acrylic resin emulsion, Dainippon Ink and Chemicals, Inc.). Co., Ltd.), Boncoat 5454 (styrene-acrylic resin emulsion,
(Manufactured by Dainippon Ink and Chemicals, Inc.), SAE-1014
(Styrene-acrylic resin emulsion, manufactured by Nippon Zeon Co., Ltd.), Cybinol SK-200 (acrylic resin emulsion, manufactured by Saiden Chemical Co., Ltd.) and the like. The resin emulsion in the recording liquid is preferably added so that the resin component accounts for 0.1 to 40% by weight of the recording liquid, and more preferably 1 to 25% by weight.

It is preferable for safety and hygiene to use a recording liquid which uses water as a main liquid medium. However, in order to make the recording liquid have desired physical properties or to prevent clogging of nozzles of the recording head due to drying of the recording liquid. Therefore, it is preferable to use the aforementioned water-soluble organic solvent. Specific examples of the water-soluble organic solvent include ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycol, propylene glycol, 1,3-propanediol, 2-methyl-1,3-
Propanediol, 1,4-butanediol, 1,5-
Pentanediol, 1,6-hexanediol, glycerin, 1,2,6-hexanetriol, 2-ethyl-
Polyhydric alcohols such as 1,3-hexanediol, 1,2,4-butanetriol, 1,2,3-butanetriol and petriol, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, Polyhydric alcohol alkyl ethers such as diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, tetraethylene glycol monomethyl ether, propylene glycol monoethyl ether, and polyhydric alcohols such as ethylene glycol monophenyl ether and ethylene glycol monobenzyl ether. Alcohol aryl ethers; N-
Methyl-2-pyrrolidone, N-hydroxyethyl-2-
Pyrrolidone, 2-pyrrolidone, 1,3-dimethylimidazolidinone, nitrogen-containing heterocyclic compounds such as ε-caprolactam; amides such as formamide, N-methylformamide, formamide, N, N-dimethylformamide; monoethanolamine, Examples thereof include amines such as diethanolamine, triethanolamine, monoethylamine, diethylamine and triethylamine, sulfur-containing compounds such as dimethyl sulfoxide, sulfolane and thiodiethanol, propylene carbonate, ethylene carbonate and γ-butyrolactone. These solvents may be used alone or in combination with water.

To the image recording promoting liquid and the recording liquid of the present invention, conventionally known additives for the recording liquid can be added. For example, as antiseptic / antifungal agents, sodium dehydroacetate, sodium sorbate, sodium 2-pyridinethiol-1-oxide, sodium benzoate, sodium pentachlorophenol and the like can be used.

Further, in order to improve the wettability of the intermediate transfer member to the recording material and the permeability to the recording material, the recording liquid contains alkyl and aryl ethers and polyoxyethylene polyoxypropylene block. Surfactants such as copolymers and fluorochemical surfactants can be added.
Further, for the same purpose, in addition to the surfactant, diethylene glycol monophenyl ether, ethylene glycol monophenyl ether, ethylene glycol monoallyl ether, diethylene glycol monophenyl ether, diethylene glycol monobutyl ether, propylene glycol monobutyl ether, tetraethylene glycol chlorophenyl ether, etc. Ethers of polyhydric alcohols can be added. Alcohols such as ethanol, 2-propanol, 1,6-hexanediol, 1,5-pentanediol and 2-ethyl-1,3-hexanediol can be added. Examples of pH adjusters include hydroxides of alkali metal elements such as lithium hydroxide, sodium hydroxide and potassium hydroxide, ammonium hydroxide, quaternary ammonium hydroxide, quaternary phosphonium hydroxide, lithium carbonate, Alkali metal carbonates such as sodium carbonate and potassium carbonate, amines such as diethanolamine and triethanolamine, boric acid, hydrochloric acid,
Nitric acid, sulfuric acid, acetic acid, etc. can be used.

[0045]

EXAMPLES Examples and comparative examples of the present invention will be shown below, but the present invention is not limited thereto. In addition,
The amounts (%) of each component described in the examples are% by weight unless otherwise specified.

(Example 1) << Preparation of recording liquid >> After mixing and stirring with the following recording liquid formulation,
The pH was adjusted to 10.5 with sodium hydroxide. Then, filtration was performed with a membrane filter having an average pore diameter of 0.1 μm to obtain a recording liquid composition. [Yellow recording liquid 1] C.I. I. Acid Yellow 23 2% by weight N-methyl-2-pyrrolidone 10% by weight Polyethylene glycol 200 15% by weight Diethylene glycol monobutyl ether 12% by weight 1,5, -Pentanediol 3% by weight Sodium alginate 0.2% by weight Sodium benzoate 0. 4 wt% ion-exchanged water Remaining amount [magenta recording liquid 1] C.I. I. Acid Red 52 1.5% by weight C.I. I. Acid Red 254 1.5 wt% N-methyl-2-pyrrolidone 10 wt% Polyethylene glycol 200 15 wt% Diethylene glycol monobutyl ether 12 wt% 1,5, -Pentanediol 3 wt% Sodium alginate 0.2 wt% Sodium benzoate 0.4 wt% Ion-exchanged water Remaining amount [Cyan recording liquid 1] C.I. I. Acid Blue 9 1.5% by weight Projet Fast Cyan 2 (manufactured by Avicia) 1.5% by weight N-methyl-2-pyrrolidone 10% by weight Polyethylene glycol 200 15% by weight Diethylene glycol monobutyl ether 12% by weight 1,5, -pentanediol 3% by weight sodium alginate 0.2% by weight sodium benzoate 0.4% by weight ion-exchanged water residual amount [Black recording liquid 1] C.I. I. Food Black 25% by weight N-methyl-2-pyrrolidone 10% by weight Polyethylene glycol 200 15% by weight Diethylene glycol monobutyl ether 12% by weight 1,5, -Pentanediol 3% by weight Sodium alginate 0.2% by weight Sodium benzoate 0. 4% by weight deionized water remaining

<< Preparation of Treatment Liquid >> The following composition was stirred and mixed to prepare Treatment Liquid Example 1 for a recording material, and the pH was adjusted to 7 with triethanolamine. The viscosity at this time is shown in Table 1.
I wrote it in. [Treatment liquid example 1] Polyallylamine 5% by weight Cationic surfactant 3% by weight Glycerin 5% by weight Ethylene glycol 20% by weight Sodium benzoate 0.5% by weight Ion-exchanged water Remaining amount

<Image recording evaluation> The above treatment liquid 1 was filled in (2) in the ink jet head for pretreatment liquid application of the image recording apparatus shown in FIG. 1, and the yellow recording liquid 1, the magenta recording liquid 1, and the cyan recording liquid 1 were filled. The black recording liquid 1 was filled so as to be ejected from the image recording inkjet head (3). An on-demand type ink jet head using PZT was used for each ink jet head, the maximum frequency was 16 KHz, and the recording liquid droplet volume was 14 p.
1, with a treatment liquid droplet volume of 5 pl, a pixel density of 600 dpi
Then, the treatment liquid is also applied to the intermediate transfer body (1) according to the image,
Image recording was performed. Commercially available copy paper (NBS Ricoh: My Paper) was used as the recording material. 1) Black image density A solid image of a black recording liquid was printed, and after drying, the solid image density of the black recording liquid was measured by a reflection type color spectrophotometric densitometer (manufactured by X-Rite). 1.45 or more was marked with ⊚, 1.2 to 1.44 was marked with ◯, and less than 1.2 was marked with x. 2) Color boundary bleeding On the recording material, magenta, cyan, and
Line images each having a black 10-dot line width were formed, and the occurrence of color boundary bleeding was visually observed. Similarly, a line image having a line width of 10 dots of magenta, yellow, and black is formed in a solid image of cyan, and a line image of cyan, yellow, and black is formed in the solid image of magenta.
The occurrence of color boundary bleeding was also observed in the case where line images each having a line width of 0 dots were formed. When no color boundary bleeding can be visually confirmed, ◎, when almost no color boundary bleeding can be visually confirmed, when there is some color boundary bleeding visually, △, when the color boundary is clearly visible When bleeding occurred, it was rated as x. 3) 1 for magenta, cyan, yellow, and black on the feathering recording medium
A line image having a line width of 0 dots was formed on each recording material, and the presence or absence of feathering was observed. When it is observed with a 10x loupe, it is almost not observed. It can be confirmed when observed with a 10x loupe, but it is a level that can not be visually confirmed, if there is no problem in practical use, and if there is a slight occurrence with visual observation. Δ: Poor when clearly visible can be confirmed. 4) When the solid-through solid image is visually observed from the back side and the boundary between the solid image and the white background is completely unclear and does not interfere with the reading of the double-sided print, ◎, the boundary between the solid image and the white background is almost unclear. When the level of the double-sided print is almost unobtrusive, ○, when the boundary between the solid image and the white background is observed, but when the double-sided print is not disturbing, △, the solid image colorant reaches the back side. When it was missing and there was a problem in reading the double-sided print, it was judged as x. 5) Cockling The presence or absence of cockling in the solid portion was observed.
When almost no cockling is observed in the secondary color ⊚, some occurrence in the secondary color is observed, but when almost no occurrence is observed in the single color, ○, some cockling is observed in the single color When the color was observed, it was marked with Δ, and when it was clear as a single color, it was marked with x. The evaluation results are shown in Table 1.

Comparative Example 1 The same recording material as that used in Example 1 was attached to the intermediate transfer member (1), and the recording liquid used in Example 1 was applied without applying the treatment liquid. Was used to form an image in the same manner as in Example 1. The obtained image was evaluated in the same manner as in Example 1. The results are shown in Table 1.

(Comparative Example 2) A recording medium similar to that used in Example 1 was attached to the intermediate transfer member (1), and the treatment liquid was applied in the same manner as in Example 1, that is, to the recording medium. An image was formed in the same manner as in Example 1 by directly applying and using the recording liquid used in Example 1. The obtained image was evaluated in the same manner as in Example 1. The results are shown in Table 1.

(Comparative Example 3) A recording material similar to that used in Example 1 is attached to the intermediate transfer member (1), and a driver for driving the piezo so that the treatment liquid has a droplet volume of 15 pl. Was applied in the same manner as in Example 1, that is, the recording liquid used in Example 1 was directly applied to the recording material so that the adhesion amount of the treatment liquid per unit area was increased as compared with Comparative Example 2. Was used to form an image in the same manner as in Example 1. The obtained image was evaluated in the same manner as in Example 1. The results are shown in Table 1.

(Example 2) << Preparation of pigment dispersion liquid >> A dispersion composition of each color pigment was mixed and stirred in the following dispersion formulation, and then dispersed for 8 hours by a bead mill using zirconia beads having a diameter of 2 mm. Then, a pigment dispersion liquid was prepared. [Yellow Pigment Dispersion Liquid 1] C.I. I. Pigment Yellow 74 15% by weight Hexyl acrylate-methacrylic acid copolymer sodium salt 3% by weight Diethylene glycol 15% by weight Ion-exchanged water (mode particle size after dispersion 118 nm) Remaining amount [magenta pigment dispersion 1] C.I. I. Pigment Red 122 15% by weight Styrene-hexyl acrylate-methacrylic acid copolymer diethanolamine salt 5% by weight Ethylene glycol 13% by weight Ion-exchanged water (particle size mode 110 nm after dispersion) Remaining amount [Cyan pigment dispersion 1] C ． I. Pigment Blue 15: 3 15% by weight Styrene-hexyl acrylate-methacrylic acid copolymer diethanolamine salt 4% by weight Ethylene glycol 15% by weight Ion-exchanged water (particle size after dispersion 85 nm) [Black pigment dispersion 1 ] Carbon black 15% by weight Vinyl naphthalene-maleic acid copolymer 3% by weight Diethylene glycol 15% by weight Ion-exchanged water (particle size mode 120 nm after dispersion) Remaining amount

<Preparation of Recording Liquid> Lithium hydroxide 10 was added to adjust the pH to 9 after mixing and stirring according to the following recording liquid formulation.
% Aqueous solution to prepare a recording liquid. Then, filtration was performed with a membrane filter having an average pore diameter of 1.0 μm to obtain a recording liquid composition. [Yellow recording liquid 2] Yellow pigment dispersion liquid 1 26.7% by weight (pigment 4% by weight) Glycerin 10% by weight 2-Pyrrolidone 10% by weight Polyoxyethylene alkyl ether acetic acid sodium salt 1% by weight 2-ethyl-1,3 -Hexanediol (penetrant) 2% by weight Microgel E-5002 (resin emulsion) 3% by weight 2-pyridinethiol-1-oxide sodium (preservative) 0.2% by weight Ion-exchanged water Remaining amount [magenta recording liquid 2 ] Magenta pigment dispersion 1 26.7% by weight (pigment 4% by weight) Glycerin 10% by weight 2-Pyrrolidone 10% by weight Polyoxyethylene alkyl ether acetic acid lithium salt 1% by weight 2-Ethyl-1,3-hexanediol (permeation Agent) 2% by weight Microgel E-5002 (resin emulsion) 3% by weight 2- Pyridinethiol-1-oxide sodium (preservative) 0.2% by weight Ion-exchanged water Remaining amount [Cyan recording liquid 2] Cyan pigment dispersion 1 20% by weight (pigment 3% by weight) Glycerin 10% by weight 2-pyrrolidone 10% by weight % Dihexylsulfosuccinate (anionic surfactant) 1% by weight 2-ethyl-1,3-hexanediol (penetrating agent) 2% by weight Microgel E-5002 (resin emulsion) 3% by weight 2-pyridinethiol- 1-Oxide sodium (preservative) 0.2% by weight Ion-exchanged water Remaining amount [Black recording liquid 2] Black pigment dispersion 1 33.3% by weight (pigment 5% by weight) Glycerin 10% by weight 2-Pyrrolidone 10% by weight Dihexyl sulfosuccinate (anionic surfactant) 1% by weight 2-ethyl-1,3-hexanediol (penetrant ) 2 wt% Microgel E-5002 (resin emulsion) 3 wt% 2-pyridinethiol-1-oxide sodium (preservative) 0.2 wt% Ion-exchanged water Remaining amount

<< Preparation of Treatment Liquid >> The following compositions were stirred and mixed to prepare Treatment Liquid Example 2 for a recording material, and the pH was adjusted to 7 with lithium hydroxide. [Treatment liquid example 2] Dicyandiamide resin 15% by weight Quaternary ammonium chloride salt 3% by weight (dimethyldodecylbenzylammonium) Glycerin 20% by weight Polyoxyethylene alkyl ether (surfactant) 5% by weight N-methyl-2-pyrrolidone 20% by weight 1,6-hexanediol 15% by weight Sodium dehydroacetate 1% by weight Ion-exchanged water Remaining amount

<< Evaluation of Image Recording >> The above processing liquid 2 is shown in FIG.
The roller device (7) for applying the pretreatment liquid of the image recording device is used.
Filled, yellow recording liquid 2, magenta recording liquid 2, cyan recording
Apply the recording liquid 2 and the black recording liquid 2 to the ink jet for image recording.
It was filled so that it can be discharged from the head (3). ink
For jet head, long on-dimer using PZT
The maximum frequency is 60 with a hand-held ink jet head.
KHz, recording liquid droplet volume 8 pl, pixel density 1200
The processing liquid is also attached to the intermediate transfer member (1) according to the image at the dpi.
The image was recorded. As the recording material, commercially available
Copy paper (Xerox Co., Ltd .: 4024) was used. processing
The amount of the liquid deposited on the intermediate transfer member was 1.3 g / wet.
m ^TwoThe rotation speed of the roller was adjusted so that it was in the middle. Got
The obtained image was evaluated in the same manner as in Example 1. The results are shown in Table 1.
did.

Comparative Example 4 The same recording material as that used in Example 2 was attached to the intermediate transfer member (1), and the recording liquid used in Example 2 was applied without applying the treatment liquid. Was used to form an image in the same manner as in Example 2. The obtained image was evaluated in the same manner as in Example 2. The results are shown in Table 1.

(Comparative Example 5) A recording material similar to that used in Example 2 was attached to the intermediate transfer member (1), and the treatment liquid was applied in the same manner as in Example 2, that is, to the recording material. An image was formed in the same manner as in Example 2 by directly applying and using the recording liquid used in Example 2. The obtained image was evaluated in the same manner as in Example 1. The results are shown in Table 1. At this time, the amount of the treatment liquid attached to the recording material was 1.6 g / m ² .

(Example 3) << Preparation of treatment liquid >> Treatment liquid example 3 was prepared by mixing and stirring the following recording liquid formulation. [Treatment liquid example 3] Magnesium nitrate 25% by weight Glycerin 8% by weight Diethylene glycol 10% by weight Polyoxyethylene alkyl ether (surfactant) 2% by weight Ion-exchanged water Remaining amount of the processing liquid 3 of the image recording apparatus shown in FIG. The inkjet head for applying the pretreatment liquid is filled with (2), and the yellow recording liquid 2, the magenta recording liquid 2, the cyan recording liquid 2, and the black recording liquid 2 are filled so that they can be ejected from the image recording inkjet head (3). did. As in Example 1, an on-demand type ink jet head using PZT was used for each ink jet head, the maximum frequency was 16 KHz, the recording liquid droplet volume was 14 pl, and the treatment liquid droplet volume was 5 pl. At 600 dpi, the treatment liquid was also applied to the intermediate transfer member (1) according to the image, and the image was recorded. Commercially available copy paper (Ricoh:
Paper source PPC paper type S) was used. The obtained image was evaluated in the same manner as in Example 1. The results are shown in Table 1.

(Example 4) << Preparation of recording liquid >> 0.22 μm of the following compositions were mixed and dissolved.
The recording liquid 3 of each color was manufactured by filtering with a polytetrafluoroethylene-based fluororesin filter (1). [Yellow recording liquid 3] C.I. I. Acid Yellow 23 1% by weight C.I. I. Direct Yellow 142 1% by weight Glycerin 5% by weight N-hydroxyethylpyrrolidone 5% by weight Polyoxyethylene alkyl ether acetate 1% by weight 2-ethyl-1,3-hexanediol 2% by weight Carrageenan 0.8% by weight 2-pyridine Thiol-1-oxide sodium 0.2% by weight ion-exchanged water residual amount [magenta recording liquid 3] C.I. I. Reactive Red 180 2% by weight C.I. I. Acid Red 52 1% by weight Glycerin 5% by weight N-hydroxyethylpyrrolidone 5% by weight Polyoxyethylene alkyl ether acetate 1% by weight 2-ethyl-1,3-hexanediol 2% by weight Polyvinyl alcohol 1% by weight 2-pyridinethiol -1-Oxide sodium 0.2 wt% ion-exchanged water balance [cyan recording liquid 3] C.I. I. Acid Blue 249 2% by weight C.I. I. Direct Blue 199 1% by weight Glycerin 5% by weight N-hydroxyethylpyrrolidone 5% by weight Polyoxyethylene alkyl ether acetate 1% by weight 2-ethyl-1,3-hexanediol 2% by weight Polyvinyl alcohol 1% by weight 2-pyridinethiol -1-Oxide sodium 0.2 wt% Ion-exchanged water Remaining amount [Black recording liquid 2] Projet Fast Black2 3 wt% C.I. I. Acid Yellow 23 0.2 wt% Glycerin 5 wt% 2-Pyrrolidone 5 wt% Polyoxyethylene alkyl ether acetate 1 wt% 2-Ethyl-1,3-hexanediol 2 wt% Carrageenan 0.5 wt% 2-Pyridine Thiol-1-oxide sodium 0.2% by weight Ion-exchanged water Remaining amount

<< Preparation of Treatment Liquid >> The following composition was stirred and mixed to prepare Treatment Liquid 4. [Treatment liquid 4] Myristyldimethylbenzalkonium chloride 3% by weight Triethylene glycol monobutyl ether 20% by weight Lithium borate 5% by weight Diethylene glycol 5% by weight Propylene glycol 10% by weight Ion-exchanged water remaining amount

<Evaluation of Image Recording> The treatment liquid 4 was filled in the ink jet head for coating the pretreatment liquid of the image recording apparatus shown in FIG. The black recording liquid 3 was filled so that it could be ejected from the image recording inkjet head (3). An on-demand type ink jet head using PZT was used for each ink jet head, the maximum frequency was 16 KHz, and the recording liquid droplet volume was 12 p.
1, with a treatment liquid droplet volume of 7 pl, a pixel density of 600 dpi
Then, the treatment liquid is also applied to the intermediate transfer body (1) according to the image,
Image recording was performed. Commercially available copy paper (NBS Ricoh: My Paper) was used as the recording material. The obtained image was evaluated in the same manner as in Example 1. The results are shown in Table 1.

Comparative Example 6 The same recording material as that used in Example 4 was attached to the intermediate transfer member (1), and the recording liquid used in Example 4 was applied without applying the treatment liquid. Was used to form an image in the same manner as in Example 4. The obtained image was evaluated in the same manner as in Example 4. The results are shown in Table 1.

(Comparative Example 7) A recording medium similar to that used in Example 4 was attached to the intermediate transfer member (1), and the treatment liquid was applied in the same manner as in Example 4, that is, to the recording medium. An image was formed in the same manner as in Example 4 by directly applying and using the recording liquid used in Example 4. The obtained image was evaluated in the same manner as in Example 4. The results are shown in Table 1.

Comparative Example 8 A recording material similar to that used in Example 4 is attached to the intermediate transfer member (1), and a driver for driving the piezo so that the treatment liquid has a droplet volume of 20 pl. Was applied in the same manner as in Example 4, that is, the recording liquid used in Example 4 was directly applied to the recording material so that the adhesion amount of the treatment liquid per unit area was increased as compared with Comparative Example 7. Was used to form an image in the same manner as in Example 4. The obtained image was evaluated in the same manner as in Example 4. The results are shown in Table 1.

Example 5 << Preparation of Colored Emulsion >> A colored emulsion of each color was prepared according to the following formulation. [Yellow Colored Emulsion 1] Aromatic diol 200 parts by weight Fumaric acid 50 parts by weight Dimer acid 20 parts by weight Hydroquinone 0.2 parts by weight Dibutyltin oxide 1 part by weight The above materials were placed in a flask and stirred under a nitrogen stream. After reacting at 200 ° C. for 10 hours, 25 parts by weight of trimellitic anhydride was added and reacted for another 2 hours to synthesize a polyester resin. Polyester 50 obtained above
g, Pigment Yellow 128 10 g, acetone 10
0 g was placed in a flask, the polyester and pigment were dispersed in acetone, triethanolamine was added to ionize the carboxyl residue in the polyester, 150 g of ion-exchanged water was added, and then acetone was removed under reduced pressure,
A colored emulsion of polyester having the pigment dispersed therein was obtained. [Magenta Colored Emulsion 1] A colored emulsion of polyester in which a magenta pigment is dispersed is obtained by the same operation as in Yellow colored emulsion 1 except that Pigment Red 122 is used in place of Pigment Yellow 128 used in Yellow Colored Emulsion 1. It was [Cyan Colored Emulsion 1] A colored emulsion of polyester in which a cyan pigment is dispersed is obtained by the same operation as that of the yellow colored emulsion 1 except that the pigment yellow 128 used in the yellow colored emulsion 1 is replaced with copper phthalocyanine blue. . [Black Colored Emulsion 1] A colored emulsion of polyester in which carbon black was dispersed was obtained in the same manner as in Yellow colored emulsion 1 except that carbon black was used instead of Pigment Yellow 128 used in Yellow colored emulsion 1.

<< Preparation of Recording Liquid >> After mixing and stirring according to the following recording liquid formulation, a recording liquid composition was obtained by filtering with a membrane filter having an average pore diameter of 1.0 μm. [Yellow Recording Liquid 4] Yellow colored emulsion 1 prepared above 35% by weight Tetraethylene glycol 8% by weight Diethylene glycol 15% by weight Polyoxyethylene tridecyl ether phosphate Na 1% by weight (anionic surfactant) 1,6-hexanediol 3% by weight Potassium dehydroacetate (antiseptic / antifungal agent) 0.4% by weight Ion-exchanged water Remaining amount [Magenta recording liquid 4] Magenta colored emulsion 1 prepared above 50% by weight Tetraethylene glycol 8% by weight Diethylene glycol 15% by weight Poly Oxyethylene tridecyl ether phosphate Na 1% by weight (anionic surfactant) 2-ethyl-1,3-hexanediol 3% by weight Potassium dehydroacetate (antiseptic and fungicide) 0.3% by weight Remaining amount of ion-exchanged water [Cyan Recording liquid 4] Uncolored emulsion 1 40% by weight Glycerin 5% by weight Diethylene glycol 20% by weight Polyoxyethylene tridecyl ether phosphate Na 0.5% by weight (anionic surfactant) 2-ethyl-1,3-hexanediol 1% by weight potassium dehydroacetate (Antiseptic / antifungal agent) 0.3% by weight Ion-exchanged water Remaining amount [Black recording liquid 4] Cyan colored emulsion 1 produced above 60% by weight Diethylene glycol 20% by weight N-methyl-2-pyrrolidone 6% by weight Polyoxyethylene Na tridecyl ether phosphate 0.5% by weight (anionic surfactant) 2-ethyl-1,3-hexanediol 1% by weight Potassium dehydroacetate (antiseptic / antifungal agent) 0.3% by weight Ion-exchanged water remaining amount

<< Preparation of Treatment Liquid >> The following compositions were stirred and mixed to prepare Treatment Liquid Example 4 for a recording material. [Treatment liquid example 4] Polymer having a quaternary ammonium salt in the side chain 10% by weight Ethylenediamine 1% by weight Quaternary ammonium surfactant 3% by weight CEP10AK97006 20% by weight (cation silica produced by Cabot Specialty Chemicals) N-methyl -2-Pyrrolidone 20% by weight Diethylene glycol 30% by weight Ion-exchanged water Remaining amount

<Evaluation of Image Recording> The treatment liquid 4 was filled in the pretreatment liquid coating roller device (7) of the image recording apparatus shown in FIG. The black recording liquid 4 was filled so as to be ejected from the inkjet head (3) for image recording. For the inkjet head, a long on-demand type ink jet head using PZT is used, and the maximum frequency is 60
KHz, recording liquid droplet volume 8 pl, pixel density 1200
At dpi, the treatment liquid was also applied to the intermediate transfer member (1) according to the image, and the image was recorded. Commercially available copy paper (Canon: PB paper) was used as the recording material. The amount of the treatment liquid adhered to the intermediate transfer body was 1.2 g / m ^{2 in} terms of wet adhesion.
The rotation speed of the roller was adjusted so that it was in the middle. The obtained image was evaluated in the same manner as in Example 1. The results are shown in Table 1.

(Comparative Example 9) A recording medium similar to that used in Example 5 was attached to the intermediate transfer member (1), and the recording liquid used in Example 5 was applied without applying the treatment liquid. Was used to form an image in the same manner as in Example 5. The obtained image was evaluated in the same manner as in Example 5. The results are shown in Table 1.

(Comparative Example 10) A recording medium similar to that used in Example 5 was attached to the intermediate transfer member (1), and the treatment liquid was applied in the same manner as in Example 5, that is, to the recording medium. An image was formed in the same manner as in Example 5 by directly applying and using the recording liquid used in Example 2. The obtained image was evaluated in the same manner as in Example 5. The results are shown in Table 1. At this time, the amount of the treatment liquid attached to the recording material was 1.6 g / m ² . [Yellow recording liquid 3] C.I. I. Acid Yellow 23 1% by weight C.I. I. Direct Yellow 86 1% by weight 15% by weight Polyoxyethylene (3) sodium tridecyl ether acetate 1% by weight (anionic surfactant) Sodium dehydroacetate 0.4% by weight

[0071]

[Table 1]

[0072]

As is clear from the detailed and specific description above, the recording liquid according to claim 1 of the present invention contains a component capable of reacting with the material contained in the processing liquid, and is an intermediate transfer member. Since it is transferred to the recording material after being mixed with the treatment liquid above, no bleeding occurs in the image on the transfer body, and a high transfer rate can be obtained when the image is transferred to the recording material. Further, the recording liquid of claim 2 contains a colorant capable of reacting with the material contained in the treatment liquid, and since the colorant has an ionic group, it is mixed with a treatment liquid containing an ionic reactive material of opposite polarity. Since an ionic reaction occurs at this time, the colorant agglomerates rapidly, so that no bleeding occurs in the image on the transfer body, and a high transfer rate is obtained when the image is transferred to the recording material. Further, since the recording liquid of claim 3 contains the colorant having an anionic group, the effect of claim 2 can be obtained, and in comparison with the case of containing a cationic group,
A highly safe recording liquid can be obtained. Further, since the recording liquid according to claim 4 contains the colorant component having a carboxylic acid group, the reactivity with the material contained in the treatment liquid is higher than that in the case where the recording liquid contains a group such as a sulfonic acid group as an anion group. Since the colorant is high and the colorant agglomerates rapidly, no bleeding occurs in the image on the transfer body, and a high transfer rate is obtained when the image is transferred to the recording material. In addition, since the amount of the treatment liquid deposited can be reduced and the concentration of the reactive component in the treatment liquid can be lowered,
It is possible to secure the safety of the treatment liquid, to secure the reliability such as storability, and to reduce the running cost. Further, since the recording liquid according to claim 5 contains a water-soluble polymer compound capable of reacting with the material contained in the processing liquid, the thickening effect of the recording liquid is obtained when the recording liquid reacts with the material contained in the processing liquid. It is large, no bleeding occurs in the image on the transfer body, and a high transfer rate is obtained when the image is transferred to the recording material. In particular, in the case of containing an ionic water-soluble polymer compound, the reaction with the ionic compound of opposite polarity in the treatment liquid occurs rapidly,
The above effect can be obtained even when recording at high speed. Further, since the recording liquid of claim 6 contains the anionic polymer compound as the water-soluble polymer compound, the effect of claim 5 can be obtained and, at the same time, the recording liquid contains the cationic polymer compound. Thus, a highly safe recording liquid can be obtained. Further, since the recording liquid according to claim 7 contains a saccharide capable of reacting with the material contained in the processing liquid, when the recording liquid reacts with the material contained in the processing liquid, the thickening effect of the recording liquid is large, and the transfer member No bleeding occurs in the above image, and a high transfer rate can be obtained when the image is transferred to the recording material. Further, since the recording liquid according to claim 8 contains a resin emulsion capable of reacting with the material contained in the processing liquid, when the recording liquid reacts with the material contained in the processing liquid, the thickening effect of the recording liquid is large, and the transfer No bleeding occurs in the image on the body, and a high transfer rate is obtained when the image is transferred to the recording material. Especially when the surface of the dispersed phase of the resin emulsion has ionic groups,
Since the reaction with the ionic compound of opposite polarity in the processing liquid occurs rapidly, even when recording at high speed, there is no bleeding in the image on the transfer body and when the image is transferred to the recording material. A high transfer rate can be obtained. Further, since the recording liquid of claim 9 contains the anionic compound as the resin emulsion, the effect of claim 8 can be obtained and, at the same time, the recording liquid has higher safety as compared with the case of containing the cationic emulsion. A recording liquid is obtained. Furthermore, since the recording liquid according to claim 10 contains a colorant component having a carboxylic acid group, the reaction with the material contained in the processing liquid is greater than that in the case where the recording liquid contains a group such as a sulfonic acid group as an anion group. Since the colorant has high property and the colorant agglomerates rapidly, no bleeding occurs in the image on the transfer body, and a high transfer rate can be obtained when the image is transferred to the recording material. In addition, since the amount of the treatment liquid deposited can be reduced and the concentration of the reactive component in the treatment liquid can be lowered,
It is possible to secure the safety of the treatment liquid, to secure the reliability such as storage stability, and to reduce the running cost.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a configuration diagram of an image recording apparatus according to the present invention.

FIG. 2 is another diagram showing an example of a configuration diagram of an image recording apparatus according to the present invention.

FIG. 3 is still another diagram showing an example of a configuration diagram of an image recording apparatus according to the present invention.

FIG. 4 is a diagram showing an adhesion range (almost entire surface) of a pretreatment liquid on a transfer body in the present invention.

FIG. 5 is a diagram showing an adhesion range (image forming area) of a pretreatment liquid on a transfer body in the present invention.

FIG. 6 is a diagram showing an adhesion range (a range corresponding to image information) of a pretreatment liquid on a transfer body in the present invention.

[Explanation of symbols]

1 transfer body 2 Inkjet head for pretreatment liquid application 3 Inkjet head for image recording 4 recording media 5 Cleaning device 6 pressure roller 7 Pretreatment liquid application roller device 8 Spray nozzle for pretreatment liquid application 9 Conveyor rollers

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tetsuya Kaneko             1-3-3 Nakamagome, Ota-ku, Tokyo Stocks             Company Ricoh (72) Inventor Masayuki Oyano             1-3-3 Nakamagome, Ota-ku, Tokyo Stocks             Company Ricoh (72) Inventor Shigeaki Kimura             1-3-3 Nakamagome, Ota-ku, Tokyo Stocks             Company Ricoh (72) Inventor Naoya Moroboshi             1-3-3 Nakamagome, Ota-ku, Tokyo Stocks             Company Ricoh F-term (reference) 2C056 EA05 FC01 FD13                 2H086 BA02 BA05 BA26 BA53 BA55                       BA56 BA59                 4J039 AB01 AD01 AD03 AD08 AD09                       AD10 AD11 AD14 AE01 AE04                       AE06 AE07 BB00 BC06 BC12                       BC19 BC54 BC56 BE01 BE02                       BE03 BE04 BE22 CA06 EA10                       EA38 EA47 GA02 GA05 GA24

Claims (10)

[Claims] 1. A process of mixing a recording liquid containing at least a colorant and a treatment liquid containing the other reactive component capable of reacting with at least one reactive component in the recording liquid on a transfer body. And a recording liquid used in an image forming method, which comprises a step of transferring the mixture onto a recording material. 2. One of the reactive components in the recording liquid that reacts with the other reactive component in the processing liquid is a colorant, and the colorant is a dye having an ionic group, or an ionic group. Pigments bound, pigments dispersed with an ionic dispersant,
The recording liquid according to claim 1, which is any one of colored emulsions emulsified with an ionic surfactant. 3. The recording liquid according to claim 1, wherein the ionic group is an anion. 4. The recording liquid according to claim 3, wherein the anion is a carboxylic acid group. 5. One of the reactive components in the recording liquid which reacts with the other reactive component in the processing liquid is a water-soluble polymer compound, and forms an ionic water-soluble polymer compound or a chelate. The recording liquid according to claim 1, comprising a water-soluble polymer compound having a group capable of 6. The recording liquid according to claim 5, wherein the water-soluble polymer compound is an anionic polymer compound. 7. The recording liquid according to claim 1, wherein a saccharide is contained as one of the reactive components in the recording liquid that reacts with the other reactive component in the processing liquid. 8. A resin emulsion having an ionic group at least on the surface of resin particles is contained as one of the reactive components in the recording liquid which reacts with the other reactive component in the processing liquid. The recording liquid according to claim 1. 9. A resin emulsion having an ionic group, wherein a resin emulsion emulsified with an anionic surfactant or a monomer having an anionic group is polymerized,
The recording liquid according to claim 8, wherein the recording liquid is synthesized by condensation. 10. The recording liquid according to claim 8, wherein the surface of the resin particles contains a resin emulsion containing a carboxylic acid group.