JPH10329408A - Recording medium for ink jet printer and method of manufacturing the same - Google Patents

Abstract

(57) [Summary] An interlayer compound fixing and retaining a water-soluble dye by an intercalation reaction based on ion exchange action,
Provided is a recording medium for an ink jet printer having a dye fixing layer made of a binder and having good ink absorbency, water resistance, and image durability. SOLUTION: The recording medium for an ink jet printer according to the present invention comprises a dye fixing layer mainly composed of an interlayer compound for fixing and retaining a water-soluble dye by an intercalation reaction based on an ion exchange action, and a binder. The dye fixing layer is formed on the dye fixing layer and contains at least one organic anion, and the binder contains a polyvinyl alcohol-based resin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium for an ink jet printer having an interlayer compound for fixing and retaining a water-soluble dye in an ink for an ink jet printer by an intercalation reaction based on an ion exchange action, and a method for producing the same.

[0002]

2. Description of the Related Art Image information and character code information produced by a personal computer, a word processor, and the like are transferred to paper or an overhead projector (hereinafter, referred to as OHP).
One of the methods for outputting to a recording medium such as a film is an inkjet method in which an ink containing a water-soluble dye is discharged onto a recording medium from a recording nozzle driven by electric field, heat, pressure, or the like to form an image. A recording method is given.

[0003] This ink jet recording system has the advantages of low noise at the time of recording, low running cost, image formation on plain paper, and the absence of waste such as ink ribbon. In homes and homes, its use has been expanding in recent years.

A water-soluble dye constituting an image fixed on a recording medium by the ink jet recording method is generally held on the recording medium by van der Waals force or hydrogen bonding. For this reason, when a solvent such as water having a high affinity for the water-soluble dye comes into contact with the image, there is a problem that the water-soluble dye constituting the image is eluted into the solvent and the image is blurred. Also, when heat energy or water vapor sufficient to cancel van der Waals forces or hydrogen bonds between the water-soluble dye constituting the image and the recording medium is supplied to the recording medium, the dye moves and the image blurs. There is a problem that occurs. Further, when a water-soluble dye constituting an image is exposed to a high-energy light such as ultraviolet light, there is a problem that the image itself may be discolored, discolored or reduced in density due to decomposition of the dye itself.

[0005] In order to improve the fixing property such as the water resistance of the image and the light resistance in such an ink jet recording system, a water-soluble dye is added to the dye fixing layer of the recording medium by an intercalation reaction based on an ion exchange action. JP-A-7-689 discloses that an intercalation compound which can be kept at a low temperature is compounded with a binder such as polyvinylpyrrolidone resin, polyvinylbutyral resin, hydroxypropylcellulose resin or polyvinyl alcohol resin.
No. 25 has proposed this. In this case, since the water-soluble dye is firmly held between the layers of the interlayer compound, the fixability of an image composed of the dye held in such a manner is greatly improved, and fading, discoloration and image density during image storage are improved. The drop has been improved.

[0006]

However, when a polyvinyl butyral resin having relatively good water resistance is used as a binder, the ink absorption of the dye fixing layer is not sufficient. In the recording area where a large amount of ink adheres, the dots mix together before the ink is absorbed by the dye fixing layer, causing a reduction in resolution, or the ink drying on the surface without being absorbed into the dye fixing layer. In some cases, resulting in a decrease in image durability.

On the other hand, when a polyvinyl alcohol resin having relatively good ink absorbability is used as a binder,
If the recording medium is immersed in water by mistake, there is a problem that the dye fixing layer is peeled off from the substrate. The water resistance is improved by adding a crosslinking agent, but the ink absorbency is deteriorated.

As described above, there is a strong demand for a recording medium using an interlayer compound to achieve both ink absorbency and water resistance.

The present invention has been proposed in view of such conventional circumstances, and comprises a dye comprising an interlayer compound for fixing and retaining a water-soluble dye by an intercalation reaction based on an ion exchange action, and a binder. It is an object of the present invention to impart good ink absorbency, water resistance, and image durability to a recording medium for an inkjet printer on which a fixing layer is formed.

[0010]

In order to achieve the above object, a recording medium for an ink jet printer according to the present invention comprises: an intercalation compound for fixing and retaining a water-soluble dye by an intercalation reaction based on an ion exchange action; A dye fixing layer mainly composed of a binder is formed on a substrate, the dye fixing layer contains at least one kind of organic anion, and the binder contains a polyvinyl alcohol-based resin. It is characterized by.

A recording medium for an ink jet printer in which a dye fixing layer contains a binder containing at least one kind of organic anion and a polyvinyl alcohol resin,
It has both ink absorbency and water resistance, and has excellent image durability.

Further, in the method for producing a recording medium for an ink jet printer according to the present invention, a step of adding at least one organic anion to an interlayer compound fixing and retaining a water-soluble dye by an intercalation reaction based on an ion exchange action. And a step of preparing a paint by dispersing the interlayer compound to which the organic anion is added in a binder containing a polyvinyl alcohol-based resin, and a coating step of applying the paint to one surface of a base material It is characterized by the following.

By using a polyvinyl alcohol-based resin as a binder for the dye fixing layer and performing anion exchange with an organic anion of the interlayer compound during dispersion of the interlayer compound, a recording medium for an ink jet printer can be provided with ink absorption and water resistance. And excellent image durability at the same time.

[0014]

Embodiments of the present invention will be described below in detail.

FIG. 1 is a sectional view of a recording medium for an ink jet printer according to the present invention. In this recording medium for an ink jet printer, a dye fixing layer 1 mainly composed of an interlayer compound, an organic anion and a binder is formed on a base material 2.

The above-mentioned interlayer compound fixes the water-soluble dye in the ink to the dye fixing layer 1 by an intercalation reaction. The interlayer compound is preferably a layered inorganic polymer having exchangeable anions between layers.

In the present invention, the layered inorganic polymer having exchangeable anions (hereinafter referred to as anion exchangeable layered compound) is a kind of 0: 1 type clay mineral,
Layered hydrotalcite group minerals composed of O ₆ octahedral sheets are preferred. A typical example of such a hydrotalcite group mineral is a natural hydrotalcite represented by the following chemical formula.

Mg ₆ Al ₂ (OH) ₁₆ .CO ₃ .4H ₂ O Although the composition is slightly different from natural hydrotalcite represented by the above chemical formula, synthetic hydrotalcite may be used. The fine powder of this synthetic hydrotalcite,
Although it is pure white without impurities, the crystal itself is optically transparent. When the fine powder is used, it is possible to form a dye fixing layer that realizes high saturation comparable to silver halide photography.

In addition to the above hydrotalcite group minerals, examples of the anion-exchangeable layered compound include hydrated oxides such as titanium, zirconium, lanthanum and bismuth, and phosphate hydroxides. Since they have optical concealability or a unique color, they can be used in a dye fixing layer where transparency, glossiness and whiteness are not simultaneously required.

In the present invention, the intercalation compound is preferably contained in the dye fixing layer at a ratio of 10% by weight to 90% by weight based on the solid content in the dye fixing layer 1. Further, the weight ratio of the interlayer compound to the binder in the dye fixing layer 1 is preferably from 1: 0.1 to 1: 2, more preferably from 1: 0.2 to 1: 1.5. If the amount of the intercalation compound is too small, the amount of the water-soluble dye retained by the intercalation reaction is reduced, and the image is blurred. If the amount is too large, the amount of the binder is relatively reduced and the adhesion of the dye fixing layer 1 is performed. And dispersibility are reduced.

Some of the exchangeable anions of the anion exchangeable layered compound are ion-exchanged with organic anions.

Examples of the organic anion include a carboxylate anion, a sulfonate anion, an ester anion and a phosphate anion. These organic anions usually have an alkyl group or an alkenyl group, but if the organic anion is too large, it becomes difficult to exchange the anion exchangeable layered compound with the exchangeable anion.
Those having 0 or less are preferable.

Specifically, phthalic acid, malic acid, acrylic acid, salicylic acid, benzoic acid, adipic acid, succinic acid,
Citric acid, tartaric acid, toluenesulfonic acid, lactic acid, maleic acid, oxalic acid, and the like can be used, and their isomer anions and derivative anions can also be used.

The content of the organic anion is preferably 5 to 10 parts by weight based on 100 parts by weight of the interlayer compound.
It is preferred to contain 0 parts by weight. When the content of the organic anion is less than 5 parts by weight, the anion exchange by the organic anion of the intercalation compound becomes insufficient, and the compatibility with the solvent becomes poor, so that the dispersibility deteriorates. Therefore, the gloss as the recording medium is lost, and the quality is reduced. Further, the insolubilization reaction of the polyvinyl alcohol resin hardly proceeds, and the water resistance of the dye fixing layer deteriorates. On the other hand, when the amount exceeds 100 parts by weight, an excessive amount of organic acid is deposited on the surface of the photographic printing paper and loses luster, thereby deteriorating the image quality. Further, the familiarity with the water-soluble ink is deteriorated, and the ink absorbency is reduced.

In the present invention, the binder contains a polyvinyl alcohol resin. Since the polyvinyl alcohol-based resin has a strong affinity for water, the interlayer compound can be sufficiently dispersed. Further, when the dispersion treatment is performed in the presence of the intercalation compound and the organic anion, a dehydration crosslinking reaction of the polyvinyl alcohol-based resin occurs using the organic anion as a catalyst. Then, the coating film can be insolubilized without deteriorating the ink absorbency of the coating film after coating and drying.

Accordingly, it is possible to impart both good ink absorbency and water resistance to the dye fixing layer, and at the same time, it is possible to improve the dye fixing property and improve the color development of the image. Further, when the recording medium using such an interlayer compound is a recording medium for OHP using a transparent plastic as a base material, the light transmittance of the recording medium can be improved.

The types of polyvinyl alcohol resins used in the present invention include completely saponified polyvinyl alcohol, partially saponified polyvinyl alcohol, polyvinyl alcohol-acrylate copolymer, and polyvinyl alcohol-N-methylol acrylamide graft. Resins.

The degree of polymerization of the polyvinyl alcohol resin is preferably from 500 to 3,500. Also,
The degree of saponification of such a polyvinyl alcohol-based resin is 6
It is preferably at least 5 mol%.

Specific examples of the polyvinyl alcohol resin used in the present invention include KH-2 manufactured by Nippon Synthetic Chemical Industry.
0, Kuraray PVA-205, Teikoku Chemical Industries PV
D, Newcoat IJ-48 manufactured by Nakamura Chemical Industry Co., Ltd., and the like.

If the content of the polyvinyl alcohol-based resin in the binder is too small, the sufficient effect of the present invention cannot be obtained, so that it is preferably 20% by weight or more, more preferably 3% by weight.
0% by weight or more. As the binder, a polyvinyl alcohol-based resin may be used alone.

Further, by using an organic resin other than the polyvinyl alcohol resin in combination, the base material 2 of the dye fixing layer 1 can be formed.
You may aim at the improvement of the adhesiveness with respect to. As the organic resin, polyvinylpyrrolidone resin, hydroxypropyl alcohol resin, hydroxypropylmethylcellulose resin, ethylcellulose resin, gelatin and the like are preferable.

In the present invention, various additives such as a plasticizer, an ultraviolet absorber, a fluorescent whitening agent, and other hydrophilic resins used in the conventional dye fixing layer may be added to the dye fixing layer 1 as necessary. An agent can be compounded.

The thickness of the dye fixing layer 1 is usually 2 μm
４０40 μm, more preferably 4 μm to 15 μm.

The substrate 2 can be arbitrarily selected from paper, synthetic paper, plastic paper, metal plate, metal foil, plastic film on which aluminum or the like is deposited.
Further, a base material subjected to an easy adhesion treatment with an organic resin or the like may be used. It should be noted that, for applications such as OHP, it is necessary to be light-transmitting.

As shown in FIG. 2, the recording medium for an ink jet printer according to the present invention has a structure in which a dye fixing layer 11 is formed on a base material 12 and an ink absorbing layer 13 is further formed thereon. Is also good.

The ink absorbing layer 13 temporarily receives the attached ink and transmits it to the dye fixing layer 11, and is made of an ink absorbing resin. For example, hydroxypropyl cellulose resin, polyvinyl alcohol resin,
Gelatin, hydratable polyvinyl acetal resin, polyvinyl pyrrolidone resin and the like can be mentioned. If the thickness of the ink absorbing layer 13 is too large, the ratio of the dye fixed to the dye fixing layer 11 decreases, and the dye fixing property deteriorates.
It is usually at most 5 μm, preferably at most 3 μm.

The recording medium for an ink jet printer according to the present invention can be used in the same manner as a recording medium for a conventional ink jet printer.

The method for producing a recording medium for an ink jet printer according to the present invention includes an adding step, a dispersing step, and a coating step.

First, in the addition step, an interlayer compound for fixing and retaining a water-soluble dye by an intercalation reaction based on an ion exchange action, and a binder containing a polyvinyl alcohol-based resin are added to a solvent. The seed organic anion is added.

Next, in the dispersing step, the organic anion and the interlayer compound are dispersed in the binder to prepare a paint. During the dispersion process, ion exchange of the interlayer compound is performed.

In the application step, the coating material prepared in the dispersion step is applied to one surface of the substrate and dried to form a dye fixing layer, thereby producing a recording medium for an ink jet printer. .

If necessary, the ink absorbing layer may be formed by applying an ink absorbing resin on the dye fixing layer and drying.

[0043]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described.

Example 1 In 100 g of a solvent, 5 g of an intercalation compound and 5 g of a binder in terms of solid were added. After 5 parts by weight of the organic anion was added to 100 parts by weight of the intercalation compound, the mixture was dispersed in a bead mill for 8 hours to obtain a paint.

Here, a mixed solvent of 18 g of isopropyl alcohol and 72 g of water was used as the solvent. Hydrotalcite was used as the interlayer compound. As a binder, PVA-205 manufactured by Kuraray Co., Ltd. was used as polyvinyl alcohol.
Malic acid was used as the organic anion.

100 μm previously subjected to easy adhesion treatment
The above coating material was applied to a transparent polyester film having a thickness of m by a wire bar so as to have a dry thickness of 10 μm.

Here, the polyester film has an IC
I-company D-535 was used.

By drying at 90 ° C. for 2 minutes to form a dye fixing layer, a recording medium for an ink jet printer was prepared.

Example 2 A recording medium for an ink jet printer was prepared in the same manner as in Example 1, except that 20 parts by weight of the organic anion was added to 100 parts by weight of the interlayer compound.

Example 3 A recording medium for an ink jet printer was prepared in the same manner as in Example 1 except that 100 parts by weight of the organic anion was added to 100 parts by weight of the interlayer compound.

Example 4 A recording medium for an ink jet printer was produced in the same manner as in Example 1, except that 150 parts by weight of the organic anion was added to 100 parts by weight of the interlayer compound.

Example 5 An organic anion was added after dispersion by a bead mill, and the organic anion was added to the interlayer compound 10.
Example 1 except that 20 parts by weight was added to 0 parts by weight.
In the same manner as in the above, a recording medium for an ink jet printer was produced.

Example 6 As a binder, a mixture of 2.5 g of hydroxypropyl cellulose on a solid basis and 2.5 g of polyvinyl alcohol on a solid basis was used, and an organic anion was added to 100 parts by weight of an intercalation compound. 4 for
A recording medium for an ink jet printer was prepared in the same manner as in Example 1 except that 0 part by weight was added.

Here, HPC-M manufactured by Nippon Soda Co., Ltd. was used as hydroxypropyl cellulose. PVA-205 manufactured by Kuraray Co., Ltd. was used as the polyvinyl alcohol.

Comparative Example 1 In 100 g of a solvent, 5 g of an interlayer compound and 5 g of a binder in terms of solid were added. It was dispersed in a bead mill for 8 hours to obtain a paint.

Here, a mixed solvent of 18 g of isopropyl alcohol and 72 g of water was used as the solvent. Hydrotalcite was used as the interlayer compound. As a binder, PVA-205 manufactured by Kuraray Co., Ltd. was used as polyvinyl alcohol.

100 μm previously subjected to easy adhesion treatment
The above coating material was applied to a transparent polyester film having a thickness of m by a wire bar so as to have a dry thickness of 10 μm.

Here, the polyester film has an IC
I-company D-535 was used.

The dye fixing layer was formed by drying at 90 ° C. for 2 minutes to prepare a recording medium for an ink jet printer.

Comparative Example 2 In 100 g of a solvent, 5 g of an interlayer compound and 5 g of a binder in terms of solid were added. After 20 parts by weight of the organic anion was added to 100 parts by weight of the intercalation compound, the mixture was dispersed in a bead mill for 8 hours to obtain a paint.

Here, a mixed solvent of 18 g of isopropyl alcohol and 72 g of water was used as the solvent. Hydrotalcite was used as the interlayer compound. As a binder, HPC-M manufactured by Nippon Soda Co., Ltd. was used as hydroxypropyl cellulose. Malic acid was used as the organic anion.

100 μm which has been subjected to an easy adhesion treatment in advance
The above coating material was applied to a transparent polyester film having a thickness of m by a wire bar so as to have a dry thickness of 10 μm.

Here, the polyester film has an IC
I-company D-535 was used.

The dye fixing layer was formed by drying at 90 ° C. for 2 minutes to prepare a recording medium for an ink jet printer.

Comparative Example 3 In 100 g of a solvent, 5 g of an interlayer compound and 5 g of a binder in terms of solid were added. After adding 20 parts by weight of the crosslinking agent to 100 parts by weight of the intercalation compound, the mixture was dispersed for 8 hours with a bead mill to obtain a paint.

Here, a mixed solvent of 18 g of isopropyl alcohol and 72 g of water was used as the solvent. Hydrotalcite was used as the interlayer compound. As a binder, PVA-205 manufactured by Kuraray Co., Ltd. was used as polyvinyl alcohol.
Sumitomo Chemical Co., Ltd. Sumitex Resin M3 was used as a water-soluble melamine as a crosslinking agent.

100 μm previously subjected to easy adhesion treatment
The above coating material was applied to a transparent polyester film having a thickness of m by a wire bar so as to have a dry thickness of 10 μm.

Here, the polyester film has an IC
I-company D-535 was used.

The dye fixing layer was formed by drying at 90 ° C. for 2 minutes to prepare a recording medium for an ink jet printer.

Comparative Example 4 An interlayer compound and a binder in an amount of 5 g in terms of solid were added to 100 g of a solvent. After 5 parts by weight of the organic anion was added to 100 parts by weight of the intercalation compound, the mixture was dispersed in a bead mill for 8 hours to obtain a paint.

Here, a mixed solvent of 18 g of isopropyl alcohol and 72 g of water was used as the solvent. As the intercalation compound, a compound obtained by previously adsorbing 2.5 g of malic acid equivalent to 5 g of hydrotalcite was used. As a binder, HPC- manufactured by Nippon Soda Co., Ltd. is used as hydroxypropyl cellulose.
M was used.

100 μm previously subjected to easy adhesion treatment
The above coating material was applied to a transparent polyester film having a thickness of m by a wire bar so as to have a dry thickness of 10 μm.

Here, the polyester film has an IC
I-company D-535 was used.

The dye fixing layer was formed by drying at 90 ° C. for 2 minutes to prepare a recording medium for an ink jet printer.

Characteristic Evaluation The recording medium for an ink jet printer produced as described above was used for HP8 manufactured by Hewlett-Packard Company.
A test pattern image is formed using a 50C type ink jet printer, and ink absorption, water resistance, dye fixability,
Each characteristic of image density and transparency was evaluated.

First, the ink absorbency was evaluated by visually observing whether or not the ink permeated the dye fixing layer and was absorbed.

When the ink permeated the dye fixing layer and was absorbed, it was evaluated as ○, and when the ink did not penetrate into the dye fixing layer and was not absorbed, it was evaluated as x.

Next, regarding the water resistance, the entire recording medium on which the image was formed was immersed in water for 10 minutes, then pulled out of the water, and the surface of the dye fixing layer was rubbed three times with a cotton swab.
The change in the dye fixing layer was visually observed and evaluated.

When no change was observed in the dye fixing layer,
If the dye fixing layer does not change but the part rubbed with a cotton swab changes, the dye fixing layer peels off or dissolves from the substrate and is reused as a recording medium for inkjet printers. Is impossible when x is impossible.

The dye fixability was evaluated by visually observing the change in the image during the water resistance test.

The case where the image did not change was rated as ○, the case where the image was blurred but there was no practical problem was rated as △, and the case where the image remarkably flowed or blurred was rated as ×.

Regarding the image density, the reflection density of the solid printed portion of the image as a high density portion was measured with a TR924 type Macbeth densitometer. The reflection density is preferably 2.1 or more for each of yellow, magenta, and cyan from the viewpoint of image saturation.

Regarding the transparency, the light transmittance of a recording medium for an ink jet printer on which no image was formed was determined by comparing the light transmittance of a recording medium for an ink jet printer on which no image was formed with a spectrophotometer of U-3400 manufactured by Hitachi, Ltd. It was measured using a meter. The light transmittance is desirably 94% or more from the viewpoint of projection quality as an OHP.

Table 1 shows the evaluation results of the recording media for each ink jet printer.

In the binders in Table 1, the polyvinyl alcohol resin is PVA, and the hydroxypropyl cellulose is HPS.

[0086]

[Table 1]

In Examples 1 to 6, practically satisfactory results were obtained for all of the evaluation items. In particular, the water resistance and the dye durability were superior to Comparative Examples 1 to 4. I understand.

However, as in Example 4, when the amount of the organic anion added was too large, 150 parts by weight with respect to 100 parts by weight of the intercalation compound, the excess organic anion precipitated on the surface of the recording medium and became compatible with the ink. Of the ink, the ink absorption and the gloss were lost.

Thus, it was found that more preferable results were obtained when the amount of the added organic anion was in the range of 5 to 100 parts by weight based on 100 parts by weight of the intercalation compound.

Further, in Example 5 in which the organic anion was added after the intercalation compound was dispersed, the water resistance was poor and sufficient characteristics could not be obtained.

Thus, it was found that it is preferable to add the organic anion before dispersion of the interlayer compound.

In Comparative Example 1 in which no organic anion was added,
Ink absorption is good, but water resistance and dye fixability are poor, and image density and transparency are poor.

In Comparative Example 2 in which hydroxypropylcellulose was used as the binder, there were problems in water resistance and dye fixability.

In Comparative Example 3 in which a crosslinking agent was used without using an organic anion, water resistance was good, but problems were observed in ink absorbency and dye fixability.

In Comparative Example 4 in which hydroxypropylcellulose was used as the binder and the interlayer compound was previously modified with an organic anion, there were problems with water resistance and dye fixability.

[0096]

As is apparent from the above description, according to the present invention, it is possible to realize a recording medium for an ink jet printer which has both good ink absorbency and good water resistance. Further, the dye fixing property is improved, and an image having excellent coloring property can be formed. Further, when the present invention is applied to an OHP recording medium using a transparent plastic as a base material,
The light transmittance of the recording medium is improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a configuration example of a recording medium for an inkjet printer to which the present invention has been applied.

FIG. 2 is a cross-sectional view illustrating a configuration example of a recording medium for an inkjet printer to which the present invention is applied.

[Explanation of symbols]

1,11 dye fixing layer, 2,12 base material, 13 ink absorption layer

Claims (14)

[Claims] 1. A dye fixing layer mainly comprising a binder and an interlayer compound for fixing and retaining a water-soluble dye by an intercalation reaction based on an ion exchange action, which is formed on a substrate. The recording medium for an ink jet printer, wherein the layer contains at least one kind of organic anion, and the binder contains a polyvinyl alcohol-based resin. 2. The recording medium for an ink jet printer according to claim 1, wherein said interlayer compound is a layered inorganic polymer having exchangeable anions. 3. The method according to claim 1, wherein the organic anion is the intercalation compound 1
2. The recording medium for an ink jet printer according to claim 1, wherein the dye fixing layer contains 5 to 100 parts by weight of the dye fixing layer. 4. The organic anion having 1 to 20 carbon atoms.
2. The recording medium for an ink jet printer according to claim 1, wherein: 5. The recording medium for an ink jet printer according to claim 1, wherein the binder contains the polyvinyl alcohol-based resin in a ratio of 20% by weight to 100% by weight. 6. The polyvinyl alcohol-based resin is one of a synthetic polymer polyvinyl alcohol, a copolymer of polyvinyl alcohol and another monomer, and a modified product of the synthetic polymer polyvinyl alcohol. Item 2. A recording medium for an ink jet printer according to Item 1. 7. The recording medium for an ink jet printer according to claim 1, wherein the weight ratio of the intercalation compound to the binder in the dye fixing layer is from 1: 0.1 to 1: 2. . 8. An adding step of adding at least one organic anion to an interlayer compound fixing and retaining a water-soluble dye by an intercalation reaction based on an ion exchange action, and an interlayer containing an organic anion added in the adding step. A dispersing step of dispersing the compound in a binder containing a polyvinyl alcohol-based resin to prepare a coating; and a coating step of applying the coating prepared in the dispersing step to one surface of a substrate. A method for producing a recording medium for an ink jet printer, comprising: 9. The method according to claim 8, wherein the interlayer compound is a layered inorganic polymer having exchangeable anions. 10. The method for producing a recording medium for an ink jet printer according to claim 8, wherein the organic anion is added in a ratio of 5 parts by weight to 100 parts by weight based on 100 parts by weight of the intercalation compound. 11. The organic anion having 1 to 2 carbon atoms.
9. The method according to claim 8, wherein the recording medium is 0. 12. The method according to claim 8, wherein the binder contains the polyvinyl alcohol resin in a ratio of 20% by weight to 100% by weight. 13. The polyvinyl alcohol-based resin,
9. The method for producing a recording medium for an ink jet printer according to claim 8, wherein the recording medium is any one of a synthetic polymer polyvinyl alcohol, a copolymer of polyvinyl alcohol and another monomer, or a modified product of the synthetic polymer polyvinyl alcohol. . 14. The recording medium for an ink jet printer according to claim 8, wherein the weight ratio of the intercalation compound and the binder in the dye fixing layer is 1: 0.1 to 1: 2. Manufacturing method.