JPH0263790A - Recording medium manufacture - Google Patents

Abstract

PURPOSE:To make possible the manufacture of a recording medium with image forming elements arranged uniformly in a single layer on a base by arranging at least, part of an image forming element distribution device in a layer consisting of charged image forming elements, and adjusting the thickness of the image forming elements attaching to the surface of the distribution device. CONSTITUTION:A base 2 is transported to a position marked as an arrow from a base roll 5, and a binder 3 is applied to the base 2 using a coating container 6 and a blade 7. After the change of the position of the base 2 laminated with a binder layer 8 by an intermediate roll 9, the base is dried using a dryer 10 and then is transported to a rotary drum 20. Here air is used as a gas to be supplied from a pressure tank 12, and an image forming element 1 is charged by setting the voltage of an electrode 18. After this, image forming elements of an upper layer section are removed by a thickness adjustment roll 27 from among the image forming elements 1 on a transfer cylinder 19. Further, the image forming elements 1 are smoothed by pressure of the thickness adjustment roll 27 and formed with a thickness equal to two layers and in a denser state. Next, the image forming elements are bound by coming in contact with the binder layer 8 on the base 2 along the rotary drum 20, following the rotation of the transfer cylinder 19.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a recording medium having an image forming element on a base material.

(Prior Art) In recent years, with the rapid development of the information industry, various information processing systems have been developed, and recording methods and devices suitable for each information processing system have also been developed. As one of such recording methods, the thermal transfer recording method has recently been widely used because the apparatus used is lightweight, compact, noiseless, and has excellent operability and maintainability. According to this method, past paper can be used as a transfer medium.

However, conventional thermal transfer recording methods are not without drawbacks.

In the conventional thermal transfer recording method, the eave recording performance, that is, the print quality, is greatly affected by the surface smoothness. In this case, the print quality deteriorates significantly. However, even when using paper, which is the most typical transfer medium, highly smooth paper is rather special, and ordinary paper has various degrees of unevenness due to the entanglement of tPa fibers. Therefore, if the conventional thermal transfer recording method is used, the edges of the printed image may not be sharp or a portion of the image may be missing, resulting in a deterioration in print quality.

In addition, in conventional thermal transfer recording methods, the ink layer is transferred to the transfer medium using only heat from the thermal head, but the thermal head must be cooled to a predetermined temperature within a limited short period of time. Furthermore, it is logically difficult to increase the amount of heat supplied from the thermal head because of the need to prevent thermal crosstalk between the heat generating segments that make up the thermal head surface.

Therefore, high-speed recording is difficult or impossible using conventional thermal transfer recording methods.

Furthermore, since thermal conduction has a slower response than electricity or light, it is generally difficult to control the thermal pulse to the extent that halftones can be reproduced when recording with a conventional thermal head. Since the heat-sensitive transfer ink layer does not have a gradation transfer function, it has not been possible to record halftones.

In addition, with conventional thermal transfer recording methods, only one color image can be obtained with one transfer, so to obtain a multicolor image, it is necessary to repeat the transfer multiple times to overlap the colors. there were. However, it is very difficult to accurately superimpose images of different colors, and it is difficult to obtain images without color shift.

In particular, when focusing on a single pixel, colors are rarely superimposed in a single pixel, and in the end, in conventional thermal transfer recording methods, multi-colored images are created due to aggregation of pixels with misaligned colors. It was forming an image.

For this reason, clear multicolor images cannot be obtained using conventional thermal transfer recording methods.

In addition, when trying to obtain multicolor images using conventional thermal transfer recording methods, it is necessary to install multiple thermal heads or make complicated movements such as stopping and reversing the transfer medium, which requires equipment. There were drawbacks such as the overall complexity and recording speed.

Further, US Pat. No. 4,399,209 describes an apparatus in which a multicolor visible image is formed using a color former and a color developer. U.S. Pat. No. 4,399,209 uses a recording medium in which microcapsules containing a photosensitive composition and a coloring agent are arranged on a base material, and uses mainly ultraviolet light converted in accordance with a recorded image. The photosensitive composition inside the microcapsules is cured to form a transferred image, and this transferred image is further superimposed on a recording medium having a color developing layer, and the transferred image is passed through a nip between a pair of pressure rolls to destroy the microcapsules. Furthermore, a transfer image forming system for developing an image is disclosed.

A multicolor image is obtained by image-formingly transferring a color former to an image forming sheet, where the color former reacts to form an image.

Further, US Pat. No. 4,416,966 discloses that a color developer or a self-contained microcapsule is present on the same support surface as the photosensitive microcapsules.
) discloses an image forming system. After exposure, the microcapsules are ruptured and the internal phase imagewise released when the imaging sheet is passed through a pressure roll after exposure, mainly by ultraviolet light converted in accordance with the recorded image. At one time, the color former migrates to a color developer, which is usually provided within the layer, where it reacts and forms a color image.

Both of the above two recording methods contain a photoinitiator in a microcapsule, and the photoinitiator has different photosensitive wavelength ranges, and mainly uses ultraviolet light that has been converted to correspond to each photosensitive wavelength range. This hardens the contents inside the microcapsules. However, the common problem with these methods is the method used for image formation, which mainly involves irradiating only ultraviolet light, that is, light energy, onto a substrate on which microcapsules are arranged, and transferring the image onto a recording medium. To obtain clear recorded images at high speed to form images,
It was necessary to use a photosensitive material that is highly sensitive to light, or to irradiate it with high-energy light.

However, high-sensitivity recording media that utilize only photoreactions have fatal drawbacks such as high sensitivity when irradiated with light and poor storage stability near room temperature.

Furthermore, in order to obtain high-energy light, the device becomes large, and in order to obtain a multicolor image, the device becomes large and the cost of the device increases, which is not desirable in practice. In addition, since the above method forms an image using only light energy, it can be used when outputting an image in response to an external signal, such as in a printer, or when reading an image from a color document, as in a color copying machine. This is inappropriate when applying image information to a recording medium after converting the image into a digital signal using a color image scanner. That is, when irradiating high-energy light, it is necessary to use short wavelength light, mainly ultraviolet light, or a light source that can digitally control ultraviolet light is currently not available. For example, optical heads such as liquid crystal shutter arrays and LED arrays have been devised as a method for obtaining digital light sources, but although these are suitable for miniaturization, liquid crystal molecules deteriorate at wavelengths in the ultraviolet region. Ultraviolet light cannot be extracted stably.

Furthermore, since the color development method uses leuco dye, it has the disadvantage that the stability of recorded images is essentially poor.

Furthermore, in order to facilitate development by applying pressure after exposure, the contents of the microcapsules must be a photosensitive composition that has a liquid phase at room temperature, resulting in poor storage stability and furthermore, the resulting images may remain intact. Because the reactants are destroyed, there is a residual odor, which is undesirable for practical purposes.

The present applicant previously filed a patent application for an image forming method that solves the above conventional problems and a recording medium that can be effectively used in the image forming method. (Japanese Patent Application No. 62174195) It is capable of forming high-quality transferred images, capable of high-speed recording, capable of halftone recording, and allows complicated movements of the transferred medium even when obtaining multicolor transferred images. This is a recording medium that can be effectively used in an image forming method that can produce clear, multicolor images without color shift.

The recording medium in this invention is a recording medium that simultaneously applies multiple types of energy including light, at least one type of energy corresponding to image recording information.
A recording medium having on a support an image forming element whose transfer characteristics change, the image forming element comprising at least a) a colorant, b) a photopolymerization initiator, and C) an unsaturated double bond. and one or more selected from the group consisting of 1,000 polymers, oligomers, and polymers,
The recording medium is characterized in that it contains a sensitive component that is sensitive to the application of light energy and thermal energy.

The sensitive component contained in the image forming element of the recording medium changes its transfer characteristics by applying light and thermal energy, and by simultaneously applying these energies in correspondence with recorded information, the transfer characteristics can be changed. It is possible to form a transferred image consisting of different parts.

In recording using this recording medium, first, at least one of two types of energy, light and thermal energy, is applied to the transfer layer in a manner corresponding to the recorded information to form portions with different transfer characteristics, resulting in differences in physical properties. This is performed by forming a transferred image and transferring the transferred image onto a recording material by utilizing the difference in physical properties.

These transfer characteristics are arbitrarily determined depending on the type of recording medium used. For example, in the case of an image forming element that transfers a transferred image in a thermally molten state, it is determined by the melting temperature, softening temperature, or glass temperature. In the case of an image forming element that transfers a transferred image in an adhesive state or in a permeable state to a transfer medium, it is the viscosity at the same temperature.

FIG. 3 shows an example of such a recording medium, in which an image forming element 1 is bound onto a base material 2 with a binding material 3. The image forming element 1 has a microcapsule shape in which a core material 1a is covered with a wall material 1b.

After the image forming element 1 is transferred to the recording medium, the wall material 1b is destroyed by energy such as heat or pressure, thereby forming a recorded image on the recording medium.

In the recording medium, in order for the core material 1a to be sufficiently ejected without being hindered by the binder 3 when the wall material 1b is destroyed, the periphery of each image forming element 1 must be surrounded by the binder 3. It is preferable that a portion of each image forming element 1 is not completely covered and exposed from the binding material. In addition, in order to obtain a recorded image with high density and faithfully reproduced colors due to sufficient transfer, the image forming element 1 must be bonded uniformly and densely to the substrate 2. Even more desirable.

In manufacturing the recording medium, the image forming element is usually bonded onto a substrate as illustrated in FIG. 4, for example.

That is, an image-forming element mixture liquid obtained by dispersing a desired amount of image-forming element 1 in an image-forming element lamination liquid (usually consisting of a volatile solvent and a binder) 4 is placed on a substrate 2. After coating to a desired thickness, the image forming element is bound onto the substrate 2 by volatilizing the volatile solvent in the lamination liquid 4 and drying and curing the binding material.

However, with this method of using a capsule mixture in which image-forming elements are dispersed, it is difficult to control the movement of the image-forming elements in the liquid, and the thickness at the time of application of the liquid must be strictly controlled. Even if the image forming element is uniformly coated on the substrate,
Moreover, it was not easy to laminate them into a single layer.

Further, it was difficult to expose a part of the surface of the image forming element from the binder.

Therefore, the present applicant has proposed a method in which the image forming element is not coated with a binder, but is bonded to a uniform single layer on a base material (Japanese Patent Application No. 61-224803 ．．
61-224804.61-224806).

According to this method, a recording medium is manufactured as follows.

First, a layer of binding material 3 is formed on base material 2 . Next, excess image forming element 1 is sprinkled on top of this layer. At this time, the image forming elements 1 are arranged in multiple layers on the base material 2, as shown in FIG. 5(a). Then, when the image forming element 1 on the base material 2 that is not in sufficient contact with the binder 3 is removed,
As shown in FIG. 5(b), a recording medium having a single layer of image forming element 1 on base material 2 is obtained.

The method of disposing the image forming element 1 on the binder 3 is not only the method of simply sprinkling it, but also the method of overlaying the binder 3 on a separately prepared support, or placing the image forming element 1 on the binder 3 in advance. A method has also been proposed in which a base material coated with a binding material 3 is adhesively conveyed onto a container containing a body 1.

Among the image forming elements 1 on the base material 2 coated with the binder 3, methods for removing those that are not in sufficient contact with the binder 3 include dropping them by gravity. A method of attaching the image forming element 1 to an attachment member and removing it, a method of removing it by applying a gas flow, etc. have been proposed.

(Problems to be Solved by the Invention) However, the quality of images is still not sufficient, and further improvement is desired.

An object of the present invention is to further develop the above-mentioned conventional example, to manufacture a recording medium in which a plurality of image forming elements or image forming elements are densely arranged in a uniform single layer on a base material, and to achieve this at a high speed. An object of the present invention is to provide a method for manufacturing a recording medium that can be carried out with high yield.

[Means to solve the problem]

The present invention includes a first step of adhering an image forming element onto an image forming element distributing means by electrostatic force, and bringing the attached image forming element into contact with a binding layer formed on a base material. A method for producing a recording medium in which an image forming element is bound on a substrate, the method comprising: charging the image forming element on a substrate; disposing at least a portion of the element dispensing means in a layer of imaging elements, and prior to the second step, the layer of imaging elements deposited on the dispensing means by a first step; This method is characterized by having a step of adjusting the thickness of the material.

Here, the step of adjusting the thickness of the image forming element attached in multiple layers to the image forming element distributing means is a method of scraping off the upper layer of the image forming element stacked in multiple layers with a blade or the like. , a method of attaching the image forming element to the roll member by pressing a grounded metal roll member against the laminated image forming element; a method of bringing a member such as a web or felt into pressure contact with the image forming element; and so on.

〔Example〕

Next, the present invention that applies the above method will be explained in detail.

FIG. 1 is a schematic cross-sectional view of an example of a device suitable for carrying out the present invention. Here, a transfer cylinder 19 is used as an image forming element distribution means, and the image forming element is caused to flow by a gas flow that has passed through a pressure reducing member having a rectifying effect.

In FIG. 1, reference numeral 5 denotes a base material roll through which the base material 2 is delivered. In this example, the base material 2 was in the form of a continuous sheet so that the various steps could be carried out by continuous movement of the base material itself. As the base material 2, a PET (polyethylene terephthalate) film with a thickness of 6 μm was used.

6 is a binder application container for holding the binder 3 and applying the binder 3 onto the base material 2; the binder application container 6 continuously applies the binder 3 to the base material 2; It is possible to do so. A blade 7 is provided for leveling the surface of the binding material 3 applied onto the base material 2 and forming the binding material 3 on the base material 2 into a binding layer 8 having a desired thickness.

Binder 3 is polyester adhesive Polyester-LP-022 (solid content 50%) lcc manufactured by Nippon Gosei Kagaku Kogyo ■.
A solution of 3 cc of toluene was used.

Reference numeral 9 denotes an intermediate roll provided to change the running direction of the base material 2 having the binding material 3.

IO is a dryer provided to remove volatile solvents in the binder by heating and drying the binder layer 8.

12 is a pressure tank provided for supplying high pressure gas. The high-pressure gas supplied from the pressure tank 12 is reduced to an appropriate pressure by the pressure control valve 13, and the gas chamber 1 is
Sent to 4.

Reference numeral 15 denotes a porous plate provided to further reduce the pressure or rectify the gas in the gas chamber 14 and allow it to pass through, thereby causing the image forming element body 1 to flow. The porous plate 15 and the thin plate 16 also serve to hold the image forming element 1. The porous plate 15 is P-E light LS-, which is a valve-mounted MCHP accessory.
3 was used.

I7 is a generator that generates a high voltage for charging the image forming element 1 through the electrode 18. The electric charge Fi+8 uniformly charges the image forming element 1 on the porous plate 15 and has a mesh structure to allow the gas sent from the gas chamber 14 to pass through. The transfer cylinder 19 is grounded, and the image forming element 1 charged by the electrode 18 and fluidized by the gas flow passing through the porous plate 15 forms a smooth multilayer on the surface of the transfer cylinder 19 by electrostatic force. distributed as .

20 conveys the base material 2 having the binding layer 8, and brings the image forming element 1 on the transfer cylinder 19 into contact with the binding layer 8;
This is a rotating drum provided for bonding to the base material 2. 4k between the rotating drum 20 and the transfer cylinder 19
A pressure of about g/cm2 is applied. Further, since the surface of the drum 20 is maintained at approximately 80° C. by the heater 21 inside the rotating drum 20, the binding layer 8 on the drum 20 is softened, and the image forming element 1 is in a state where it is easier to bind. ing. If the binding layer 8 is a binding material that has tackiness at room temperature, the heater 2I is not necessarily required.

The image forming element 1 that did not participate in bonding to the base material 2 is removed by a blade 22 and recovered by a recovery device 24.

The cylinder surface cleaned in this way has
The image forming element is layered again.

Reference numeral 25 denotes a hot pressure roll provided for disposing the image forming element 1 smoothly and uniformly on the base material 2 by pressurizing and heating the base material 2 conveyed from the rotating drum 20. The temperature was set at 80°C and 2 kg/cm2. The binding layer 8 solidifies when the temperature returns to room temperature, and firmly fixes the image forming element 1.

Reference numeral 26 denotes a recording medium recovery roll that recovers a recording medium manufactured by bonding the image forming element 1 to the base material 2.

Reference numeral 27 denotes a thickness adjusting roll (
The material is aluminum) and it is grounded. The thickness adjustment roll is transferred to the transfer cylinder 19 at a pressure of 0.1Kg/cm.
It is pressed against the upper image forming element 1, and the upper layer of the stacked image forming elements 1 moves onto the thickness adjusting roll. The image forming element 1 that has been moved onto the thickness adjusting roll 27 is scraped off by a blade 28 and recovered by a recovery device 23 to be reused.

Next, an example of manufacturing a recording medium using the above-mentioned apparatus will be described.

First, an image forming element 1 was manufactured in the form of a microcapsule.

That is, 'f, 10 g of each of the core material components shown in Tables 1 and 2 were first mixed with 20 parts by weight of methylene chloride, and then mixed with 100 g of two balls of nonionic surfactant (trade name 2).
, llt, B value 13. A few drops of Sanyo Chemical Industries Ltd.) and 1 g of gelatin were mixed in 200 ml of water and heated at 60°C with a homomixer at 8000-10000 rpm.
The mixture was stirred and emulsified to obtain oil droplets with an average particle size of 26 μm.

Stirring was continued at 60° C. for 30 minutes, and the methylene chloride was distilled off to give an average particle size of about 10 μm. Add 20 ml of water in which 1 g of gum arabic was dissolved, cool slowly, and then add NH and ammonia water.
A microcapsule slurry was obtained in the above manner, and 1.0 mj2 of a 20% glutaraldehyde aqueous solution was slowly added to harden the capsule walls made of gelatin and gum arabic. Thereafter, solid-liquid separation was performed using a Nutsche filter, and the mixture was dried in a vacuum dryer at 35° C. for 10 hours to obtain two types of image-forming elements in the form of microcapsules. This image forming element was a microcapsule in which the core material shown in Tables 1 and 2 was covered with a wall material, and had a particle size of 7 to 15 μm and a number average particle size of 10 μm.

Table 1 Table 2 The produced image forming element was placed on a porous plate 15 to produce a recording medium.

The base material 2 is transported from the base material roll 5 in the direction of the arrow, and transferred to the coating container 6. Binder 3 was applied to base material 2 using blade 7 . - The thickness of the binding layer 8 thus formed on the base material 2 was measured and was approximately 1 μm.

The substrate 2 on which the binding layer 8 was laminated was changed in direction by an intermediate roll 9, dried by a drier 10, and conveyed to a rotating drum 20.

Using air as the gas supplied from the pressure tank 12,
The pressure is 0.15 gauge pressure using the pressure control valve 13.
kg/cm2. The voltage of electrode I8 is the voltage of generator 17
The image forming element body 1 was charged by setting the voltage to 50 KV. The image forming element 1, which was charged and fluidized by the gas flow that passed through the porous plate, adhered to the surface of the transfer cylinder 19 in multiple layers.

The upper layer of the image forming element 1 on the transfer cylinder 19 is removed by the thickness adjusting roll 27, and the image forming element 1 is smoothed by the pressure of the thickness adjusting roll 27 and placed on the transfer cylinder 19 with a thickness of about two layers. The image forming element body layer was formed in a denser state. FIG. 2(a) is a schematic cross-sectional view of the base material after being adjusted by a thickness adjusting roll, and FIG. 2(b) is a schematic sectional view of the base material after being adjusted.

As the transfer cylinder 19 rotates, the image forming element 1 on the transfer cylinder 19 comes into contact with the binding layer 8 on the base material 2 along the rotating drum 20 and is bound thereto. Here, with respect to the speed of the base material 2 of the rotating tortoise, the surface speed of the transfer cylinder is 12
Both were rotated so that the size was 0%.

The base material 2 conveyed from the rotating drum 20 is transferred to a hot pressure roll 25
The recording medium is collected by the recording medium collection roll 26.

When the manufactured recording medium was observed under a microscope, it was found that the image forming element 1 was uniformly and densely arranged in a single layer on the base material 2 without the upper surface thereof being covered with the binder.

Furthermore, a clean recording medium was formed on the surface opposite to the binding layer.

Note that the image forming element 1 is not limited to the microcapsule-shaped one shown in FIG. It may also be in the form of particles obtained by solidifying colorants and other materials.

Moreover, as the base material 2, PET film, polyamide film, polyimide film, capacitor paper, etc. may be used.

As the binder 3, adhesives such as epoxy adhesives, polyvinyl alcohol, polyvinylpyrrolidone, polyacrylamide, urethane adhesives, acrylic polyester adhesives, and ethylene-vinyl acetate copolymers may be used. This is possible, and as a method for providing the binding layer 8 on the base material 2, methods such as spraying the binding material 3 or gravure printing can also be used.

Furthermore, although a gas flow passing through a porous plate is used here to flow the image forming element 1, the image forming element may be mixed with a gas flow and injected into a container, or a piezoelectric element It is also possible to apply vibration to the image forming element using, for example.

Note that as the gas supplied from the pressure tank 12, in addition to air, a less active gas such as N2 may be used.

As the porous plate 15, soft urethane, rubber sponge, etc. can also be used.

In addition, the image forming element 1 is made to contain a magnetic material such as iron oxide, a magnet is placed inside the rotating drum, and the image forming element 1 is
can also be strongly adsorbed onto the surface of the binding layer. Further, even if the binding layer 8 is charged with a charge opposite to that of the image forming element 1 using a corona charger or the like, the image forming element 1 can be strongly attracted to the binding layer 8.

In addition, the image forming element 1 is not in sufficient contact with the binding layer 8.
As a method for removing the particles, a method of blowing a gas stream onto the image forming element 1, a method of applying vibration to the base material 2, a method of removing the particles by attaching them to an attachment member, etc. may be used.

Further, instead of passing the base material 2 on which the image forming element 1 is laminated between the hot pressure rolls 25a and 25b, only pressure or only heat may be applied.

Further, by adjusting the potential on the surface of the thickness adjusting roll 27 or the pressure between the thickness adjusting roll 27 and the transfer cylinder 19, it is possible to adjust the thickness of the image forming element on the transfer cylinder 19.

Alternatively, instead of using the thickness adjusting roll 27, the upper layer of the image forming element is scraped off with a blade or the like, and a member such as a web or felt is pressed against the image forming element and the image forming element is adhered to the image forming element. Also, the thickness of the image forming element on the transfer cylinder can be adjusted or smoothed.

<Transfer Experimental Example> Using the recording medium of the present invention obtained by the above method,
A transfer experiment was conducted as shown below.

That is, the PET surface of the recording medium is brought into close contact with a hot plate heated to 120° C., and about 25 m from the image forming element.
Toshiba ■'s 20W health line fluorescent lamp FL20SE with the spectral characteristics of Kula 7C shown in Figure 6 from a distance of m.
Toshiba's 20W fluorescent lamp FL with the characteristics of Kura 7D
Each predetermined position was irradiated with IOA70E390 for about 50 mm and 5 ec. After heating and irradiating the recording medium, the surface smoothness of the image forming element side of the recording medium is about 10 to
The recording paper was overlapped with the 20-second recording paper so that it was in contact with the recording paper, and the paper was passed between two rolls that were pressed against each other. The pressure between the rolls was set to about 25 kg/cm2, and the surface temperature of the rolls in contact with the recording medium was heated in advance to 90 to 100°C.

After passing between the rolls, when the recording medium and the recording paper were separated, a high quality image consisting of blue and magenta colors was obtained on the recording paper.

(Effects of the Invention) In the present invention, the thickness of the image forming elements stacked in multiple layers is adjusted or smoothed by electrostatic force in an image forming element distributing means such as a transfer cylinder, thereby creating a dense state without unevenness. An image forming element body layer laminated with the above steps can be obtained. This improves the transfer characteristics when transferring the image forming element laminated on the image forming element distribution means to the binding layer laminated on the base material, and the image forming element is tightly attached to the base material. It has now become possible to manufacture a recording medium in which a single layer is arranged in a uniform state.

[Brief explanation of the drawing]

Fig. 1 is an overall schematic explanatory diagram of an embodiment of the present invention, Fig. 2 is a schematic diagram of the image forming element body layer of thickness adjustment surface, Fig. 3 is an explanatory diagram of the configuration of a recording medium, and Fig. 4 is a conventional recording medium. FIG. 5 is an explanatory diagram of a conventional recording medium manufacturing method, and FIG. 6 is an explanatory diagram of the spectral characteristics of a light source. 1: Image forming element la: core material 1b: wall material 2: base material 3: binding material 5: base material roll 6: coating container 7: plate 8: binding layer 9: intermediate roll lO: dryer 12: Pressure tank 13: Pressure adjustment valve 14: Gas chamber 15: Porous plate 16: Closing plate 17: Generator 19: Transfer cylinder 20: Rotating drum 21: Heater 22 Ni blade
23: Recovery device 24: Recovery device 25a, 25b: Heat pressure roll 26: Recording medium recovery roll 27: Thickness adjustment roll 28 Niblade Figure 1 Figure 2 Figure 2 (a) (b) Figure 5

Claims (1)

[Claims] 1) A first step of adhering the image forming element onto the image forming element distributing means by electrostatic force, and bringing the attached image forming element into contact with a binding layer formed on the base material. A method for producing a recording medium in which an image forming element is bonded to a substrate, the method comprising: charging the image forming element on a base material; disposing at least a portion of the dispensing means in a layer of imaging elements, and prior to the second step, determining the thickness of the layer of imaging elements deposited on the dispensing means by the first step; A method characterized by comprising the step of adjusting the temperature.