JP4275505B2 - Inkjet recording sheet - Google Patents

Description

  The present invention relates to an ink jet recording sheet and a method for producing the same, and more particularly to an ink jet recording sheet having good ink absorbability, high recorded image density, and excellent gloss.

  The ink jet recording method is a method in which fine droplets of ink are ejected by various operating principles and adhered to a recording sheet such as paper to record images / characters. However, high speed, low noise, and multiple colors are achieved. It has features such as easy recording pattern flexibility, no need for development and fixing, and is rapidly spreading as a recording apparatus for various graphics and color images including kanji. Furthermore, images formed by the multi-color ink jet method can obtain a recording that is comparable to multi-color printing by the plate-making method and printing by the color photographic method. Since it is cheaper than the technology, it is being widely applied to the field of full-color image recording.

  As a recording sheet used in this inkjet recording method, the density of the printed dots is high, the color tone is bright and vivid, the ink does not flow out or bleed even when the printed dots overlap quickly, It is required that the lateral diffusion of the printed dots is not larger than necessary, the periphery is smooth and not blurred.

  Several proposals have been made to solve these problems. An ink jet recording paper in which a low-size base paper is wetted with a coating material for surface processing is disclosed (for example, see Patent Document 1). Moreover, there is an example using non-collagen silica powder as a pigment in the coating layer (see, for example, Patent Document 2 and Patent Document 3). Furthermore, an example of smear paper using a two-layer structure with different ink absorption rates is disclosed (see, for example, Patent Document 4).

  In general, an ink jet recording sheet is provided with an ink receiving layer having an ink absorption characteristic to which a porous pigment is applied, and controls color and sharpness to determine image quality, thereby improving color reproducibility and image reproducibility. ing. The ink receiving layer having ink absorptivity needs to have many voids in the ink receiving layer in order to absorb and hold ink. However, the ink-receiving layer with many voids is scattered because the incident light to the ink-receiving layer is scattered and transmission is blocked, so that the ink becomes opaque, and it becomes difficult for light to reach the ink that has penetrated the voids, so the image becomes whitish. Color reproducibility and color density are reduced. Further, since the ink receiving layer having many voids has a porous surface, it is difficult to desire high gloss.

  As an inkjet recording sheet having high gloss, a method has been proposed in which a porous ink-receiving layer is formed on a transparent support, and an image formed on the ink-receiving layer is observed from the support side. (For example, refer to Patent Document 5). Also, there is a method in which a dye adsorption layer made of porous alumina hydrate and a solvent absorption layer made of porous fine powder silica are sequentially laminated on a transparent support, and an image formed on the dye adsorption layer is observed from the support side. It has been proposed (see Patent Document 6). However, in these methods, when an image is printed, it is necessary to perform image processing so that it becomes a mirror image, and further, the support used is limited to one having transparency.

For the purpose of imparting gloss, recording paper, film, etc. coated with a resin that absorbs ink by dissolution / swelling are available. However, ink absorption and drying are slow, and the occurrence of stains and bleeding due to ink transfer becomes a problem.

JP 52-53012 A JP-A-55-51583 JP-A-56-157 Japanese Patent Laid-Open No. 55-11829 Japanese Patent Laid-Open No. 61-197285 JP-A-3-215081

  The inkjet recording method has a problem of obtaining image quality comparable to that of a so-called silver salt photograph. An object of the present invention relates to an ink jet recording sheet having good ink absorptivity, a clear recorded image, and excellent gloss, and a method for producing the same.

  As a result of intensive studies on the ink jet recording sheet, the inventors have invented the ink jet recording sheet of the present invention.

That is, in the invention according to claim 1, in the ink jet recording sheet which is a recording medium in which an intermediate layer and a glossy expression layer are provided on a support, the intermediate layer is one or more resins selected from the group of acetal resins and urethane resins. And the intermediate layer has an absolute dry coating amount of ² to 20 g / m ² , or the intermediate layer has a thickness of 2 to 20 μm, and the gloss developing layer is an aggregate of primary particles, It is composed of fumed alumina particles having an average particle size of 80 to 300 nm and polyvinyl alcohol having a saponification degree of 80 to 99.9 mol% and a polymerization degree of 1500 to 4500 as a binder, and the ratio of fumed alumina particles to binder is The weight ratio is 100: 3 to 100: 30, and the dry coating amount of the glossy layer is 20 to 70 g / m ² , or the thickness is 20 to 70 μm. Then, after forming the gloss developing layer by coating and drying, an epichlorohydrin-based cationic fixing agent is dispersed or dissolved in a solvent on the gloss developing layer , and is applied by drying after coating. The gist of the invention is that it is an ink jet recording sheet. This ink jet recording sheet has a 75-degree specular gloss specified by JIS P8142 of 40 to 95%, or an image clarity specified by JIS H8686 of 40 to 98%.
The invention described in claim 2 includes that the support is made of a film or resin-coated paper.

  As will be described below, by carrying out the present invention, it is possible to provide an ink jet recording sheet having good ink absorbability, a clear recorded image, and excellent gloss.

  In the present invention, it is a recording medium in which an intermediate layer and a glossy layer are provided on a support, and the intermediate layer is preferably mainly composed of one or more resins selected from the group of acetal resins and urethane resins. By using an intermediate layer between the support and the gloss developing layer, the solvent component of the ink can be absorbed, the ink absorbability of the gloss developing layer can be improved, and the problem of ink overflow can be avoided.

  The intermediate layer in the present invention is mainly composed of at least one resin selected from the group of acetal resin, urethane resin, acrylic resin and polyvinyl alcohol resin, so that the smoothness and glossiness of the coated surface of the support are not impaired. In addition, ink absorbability can be complemented.

  As the intermediate layer pigment in the present invention, a general coated paper such as synthetic amorphous silica, kaolin, clay calcined, clay, calcium carbonate, aluminum hydroxide, etc. can be used as long as a sufficiently smooth and high gloss surface quality can be obtained. Various publicly known pigments in the field can be used. More preferably, inorganic fine particles such as colloidal silica and alumina sol that do not easily impair the smoothness of the coated surface of the support are used.

  Examples of binders used in the intermediate layer include casein, soybean protein, synthetic proteins, starch, cellulose derivatives such as carboxymethylcellulose and methylcellulose, polyvinylpyrrolidone, styrene-acrylic copolymer, styrene-butadiene copolymer, and methyl methacrylate. Coated paper for acrylic latex latex such as butadiene copolymer, acrylic ester, methacrylic ester polymer or copolymer, and vinyl latex such as vinyl acetate and ethylene vinyl acetate copolymer You may use together the binder which can be used for. Further, in the intermediate layer, as additives, dye fixing agent, pigment dispersant, thickener, fluidity improver, antifoaming agent, foam suppressor, penetrating agent, colored dye, colored pigment, fluorescent whitening agent, Ultraviolet absorbers, antioxidants, antiseptics, antibacterial agents, water resistance agents, wet paper strength enhancers, dry paper strength enhancers, curing agents, and the like can be appropriately blended.

  The fumed alumina used in the glossy layer of the present invention is generally alumina produced by a production method such as a dry method or a gas phase method. This is a manufacturing method in which an aluminum salt (for example, aluminum chloride or aluminum sulfate) is roasted at a high temperature.

  The fumed alumina used in the present invention is an aggregate of primary particles from the viewpoint of ink absorbability and gloss, and the average particle diameter of the aggregate is preferably 80 to 300 nm, more preferably 100 to 100 nm. 200 nm. When the average particle size of the aggregate is smaller than 80 nm, the gloss is good but the ink absorbability is poor. When the average particle diameter of the aggregate is larger than 300 nm, there is a problem that gloss is inferior although ink absorbency is good. Here, the average particle diameter of the aggregate is preferably measured by a light scattering method or a laser diffraction method, more preferably photon correlation spectroscopy (PCS). The primary particle size of the fumed alumina is not particularly limited, but is preferably 1 to 50 nm.

The weight ratio of the fumed alumina particles to the binder is preferably 100: 3 to 100: 30, and more preferably 100: 5 to 100: 20. When the ratio of the fumed alumina particles to the binder is less than 100: 3, the ink absorbency is good, but the strength of the coating layer film is insufficient, or the surface quality deteriorates due to the occurrence of cracks on the surface. There is. When the ratio of the fumed alumina particles to the binder is more than 100: 30, the coating layer film has sufficient strength, and a good surface quality that does not crack the surface can be formed, but the ink absorbability is poor. . It is preferable that an epichlorohydrin cationic fixing agent is provided on the glossy layer.

The epichlorohydrin cationic fixing agent is necessary for fixing the ink. However, when the epichlorohydrin cationic fixing agent is mixed with the liquid of the gloss developing layer, the compatibility with the components contained in the gloss developing layer is poor. Agglomerates and there is a problem in stability, and there is a problem in that the transparency and gloss of the coating layer film are lowered.

The ratio between the fumed alumina particles and the epichlorohydrin-based cationic fixing agent is preferably 100: 0.3 to 100: 30, and more preferably 100: 0.5 to 100: 20. If the ratio between the fumed alumina particles and the epichlorohydrin-based cationic fixing agent is lower than 100: 0.3 by weight, there is a problem that the effect of the cationic fixing agent is difficult to be obtained and the color developability of the ink is inferior. Since the fixability of the ink is inferior, there is a problem that the ink oozes when it is wet or stored under high humidity. If the ratio of the fumed alumina particles to the epichlorohydrin-based cationic fixing agent is more than 100: 30 by weight, the ink fixing property is good, but the ink absorbability is deteriorated and the image density is lowered. May cause a problem of causing an aggregating action with an anionic ink component and impairing the sharpness of an image.

Epichlorohydrin cationic fixing agent, absorbent and fixation of Lee ink in terms of image sharpness, is particularly advantageous.

  The binder is preferably polyvinyl alcohol having a saponification degree of 80 to 99.9 mol% and a polymerization degree of 1500 to 4500, and more preferably polyvinyl alcohol having a saponification degree of 85 to 99 mol% and 2000 to 4000. When the degree of saponification is lower than 80, the glossy layer has good absorbency, but the water resistance is weak, and the coating layer film is peeled off with water (a phenomenon in which the coating layer film peels off when placed in water for a long time). There's a problem. When the degree of saponification is higher than 99.9 mol%, the water resistance is good and the water-resistant peeling of the coating layer film does not occur, but there is a problem that the ink absorbability of the glossy layer is delayed and the sharpness of the printed image is inferior. . Here, the degree of saponification is expressed as a percentage of the number of hydroxyl groups in the total number of hydroxyl groups and acetic acid groups in polyvinyl alcohol.

  When the polymerization degree of polyvinyl alcohol is lower than 1500, the ink absorbability is good, but there is a problem that the strength of the coating film of the glossy layer is inferior and the surface is cracked. When the degree of polymerization is higher than 4500, the surface strength and cracks of the glossy layer are good, but there is a problem that the ink absorbability becomes slow and the printed image sharpness is poor.

  As the support, a film or resin-coated paper is preferable. When the support is a film or resin-coated paper, the surface has high smoothness, excellent gloss, and good cockling (waving) of the sheet.

The absolute dry coating amount of the intermediate layer is preferably ^{2 to} 20 g / m ² or 2 to 20 μm, more preferably 4 to 15 g / m ² or 4 to 15 μm. If the dry coating amount of the intermediate layer is less than ² g / m ² or 2 μm, there is a problem that ink absorbability is insufficient. When the dry coating amount of the intermediate layer is more than 20 g / m ² or 20 μm, the ink absorption is good, but the coating property of the glossy layer is inferior, and the glossy layer is liable to crack, smoothness and glossiness. There is a problem that surface quality is inferior.

The absolute dry coating amount of the glossy layer is preferably ^{20 to} 70 g / m ² or 20 to 70 μm, more preferably 30 to 50 g / m ² or 30 to 50 μm. When the absolute dry coating amount of the glossy layer is less than 20 g / m ² or 20 μm, there is a problem that the ink absorbability is insufficient and the ink overflows and bleeds. When the dry coating amount of the gloss developing layer is more than 70 g / m ² or 70 μm, the ink absorbability is good, but the gloss developing layer is liable to crack, resulting in a problem of image sharpness, and more than necessary. At the dry coating amount, the ink absorption effect is saturated, resulting in productivity and cost problems.

  The 75-degree specular gloss is preferably 40 to 95%, more preferably 50 to 90%. When the glossiness is lower than 40%, the visual glossiness is insufficient, and when the glossiness is higher than 95%, the glare feeling is strong and undesirable.

  The image clarity is preferably 40 to 98%, and more preferably 50 to 95%. When the image clarity is lower than 40%, the visual glossiness and sharpness are insufficient, and when the image clarity is higher than 98%, the glare feeling is strong and undesirable.

It is preferable that the epichlorohydrin-based cationic fixing agent is dispersed or dissolved in a solvent containing water and a solvent, and is applied by drying after coating. The epichlorohydrin-based cationic fixing agent can be uniformly applied onto the glossy layer by dispersing or dissolving it in a solvent containing water and a solvent, and coating.

  The ink jet recording sheet of the present invention already has a high gloss when it is coated and dried. If necessary, high gloss can be imparted by calendar processing. The calendar process can be finished using a calendar device such as a machine calendar, a TG calendar, a super calendar, or a soft calendar.

  In order to improve the glossiness, the formation of the glossy expression layer may be obtained by a casting process. The cast treatment is a processing method in which the glossy layer is pressed onto a heated mirror surface roll in a swollen state to give a mirror finish. Examples of the cast treatment in the present invention include a direct method, a gelation method, and a rewet method.

  In addition, in order to improve glossiness, the glossy expression layer mainly composed of fumed alumina particles of the present invention is formed by a manufacturing method in which the glossy expression layer is in a swollen state, a smooth film is adhered, peeled and removed, and mirror finished. May be obtained.

  Furthermore, for the glossy layer, as additives, dye fixing agents, pigment dispersants, thickeners, fluidity improvers, antifoaming agents, antifoaming agents, penetrating agents, colored dyes, colored pigments, fluorescent whitening agents UV absorbers, antioxidants, antiseptics, antibacterial agents, water resistance agents, wet paper strength enhancers, dry paper strength enhancers, curing agents, and the like can be appropriately blended.

  The method of applying or impregnating the glossy layer and the intermediate layer according to the present invention can be used in machines of various apparatuses such as various blade coaters, roll coaters, air knife coaters, bar coaters, rod blade coaters, curtain coaters and the like.

In order to impart curl aptitude, a back coat layer can be coated on the opposite side of the glossy layer side with the support interposed therebetween.
Example

  Examples will be described below, but the present invention is not limited to these examples. In the examples, “parts” and “%” indicate parts by weight of absolute dry and parts by weight of absolute dry weight unless otherwise specified.

  In the examples and comparative examples shown below, a film of Melinex 534 manufactured by Teijin DuPont was used, and all were made common.

[Form an intermediate layer]
The intermediate layer was coated on the surface of the support. The coating composition of the intermediate layer was prepared by using 100 parts of a urethane resin as a main component (Pateracol IJ-50: manufactured by Dainippon Ink & Chemicals, Inc.) to a solid content of 10%. This liquid was coated on the support so as to have an absolutely dry coating amount of 5 g / m ² and then dried.
(Glossy expression layer is formed)
The gloss developing layer was applied to the surface of the support on which the intermediate layer was formed. The coating composition of the glossy layer is composed of 100 parts of fumed alumina particles (Cab-O-Sperse PG003: manufactured by Cabot Specialty Chemicals, Inc.) as inorganic fine particles, polyvinyl alcohol having a saponification degree of 88 mol% and a polymerization degree of 3500. Using 10 parts (PVA-235: manufactured by Kuraray Co., Ltd.), these were prepared with a solid content of 20%. This liquid was coated and dried so as to have an absolutely dry coating amount of 25 g / m ² . Furthermore, an epichlorohydrin-based cationic fixing agent (Papiogen P-105: manufactured by Senka) is mixed with water and a solvent of isopropyl alcohol 1: 1 so that the solid content is 3% so that the dry coating amount is 1 g / m ^2. The ink jet recording sheet of the present invention was obtained by coating and drying.

An ink jet recording sheet of the present invention was obtained in the same manner as in Example 1, except that the absolute dry coating amount of the glossy layer was 45 g / m ^{2 in} Example 1.

  In Example 1, 100 parts mainly composed of a urethane resin in the intermediate layer (Pateracol IJ-50: manufactured by Dainippon Ink & Chemicals) and 100 parts mainly composed of an acetal resin (MZ-13: manufactured by The Inktech) The ink jet recording sheet of the present invention was obtained in the same manner as in Example 1 except that the parts were used.

In Example 3, the inkjet recording sheet of the present invention was obtained in the same manner as in Example 3 except that the dry coating amount of the glossy layer was 45 g / m ² .

In Example 1, it was the same as Example 1 except that the absolute dry coating amount of the intermediate layer was 10 g / m ^2.

In Example 5, an inkjet recording sheet of the present invention was obtained in the same manner as in Example 5 except that the dry coating amount of the glossy layer was 45 g / m ² .

In Example 3, an ink jet recording sheet of the present invention was obtained in the same manner as in Example 3 except that the absolute dry coating amount of the intermediate layer was 10 g / m ² .

In Example 7, an inkjet recording sheet of the present invention was obtained in the same manner as in Example 7, except that the absolute dry coating amount of the glossy layer was 45 g / m ² .

Comparative Example 1

  An inkjet recording sheet of the present invention was obtained in the same manner as in Example 1 except that colloidal silica (Cab-O-Sperse PG002: manufactured by Cabot Specialty Chemicals, Inc.) was used as the inorganic fine particles in Example 1.

Comparative Example 2

  An ink jet recording sheet of the present invention was obtained in the same manner as in Example 1 except that organic cationic colloidal silica (Silojet P-4000C: manufactured by Grace Japan) was used as the inorganic fine particles in Example 1.

Comparative Example 3

In Example 1, an inkjet recording sheet of the present invention was obtained in the same manner as in Example 1 except that the epichlorohydrin cationic fixing agent was not applied.

Comparative Example 4

  An inkjet recording sheet of the present invention was obtained in the same manner as in Example 1 except that 10 parts of polyvinyl alcohol (PVA110: manufactured by Kuraray Co., Ltd.) having a saponification degree of 98.5 mol% and a polymerization degree of 1000 was used.

Comparative Example 5

In Example 1, the inkjet recording sheet of this invention was obtained like Example 1 except having made the absolute dry coating amount of the gloss expression layer into 15 g / m < ² >.

Comparative Example 6

  An ink jet recording sheet of the present invention was obtained in the same manner as in Example 1 except that 2 parts of polyvinyl alcohol (PVA-235: manufactured by Kuraray Co., Ltd.) having a saponification degree of 88 mol% and a polymerization degree of 3500 were used.

Comparative Example 7

  An ink jet recording sheet of the present invention was obtained in the same manner as in Example 1 except that 40 parts of polyvinyl alcohol (PVA-235: manufactured by Kuraray Co., Ltd.) having a saponification degree of 88 mol% and a polymerization degree of 3500 were used.

Comparative Example 8

  An ink jet recording sheet of the present invention was obtained in the same manner as in Example 2 except that 2 parts of polyvinyl alcohol (PVA-235: manufactured by Kuraray Co., Ltd.) having a saponification degree of 88 mol% and a polymerization degree of 3500 were used.

Comparative Example 9

  An ink jet recording sheet of the present invention was obtained in the same manner as in Example 2, except that 40 parts of polyvinyl alcohol (PVA-235: manufactured by Kuraray Co., Ltd.) having a saponification degree of 88 mol% and a polymerization degree of 3500 was used.

Comparative Example 10

  In Example 1, an intermediate layer is not formed, a gloss developing layer is provided directly on the surface of the support, and colloidal silica (Cab-O-Sperse PG002: manufactured by Cabot Specialty Chemicals, Inc.) inorganic fine particles as inorganic fine particles. An ink jet recording sheet of the present invention was obtained in the same manner as in Example 1 except that the organic cationic colloidal silica (Silojet P-4000C: manufactured by Grace Japan) was used.

Comparative Example 11

  In Example 1, an intermediate layer was not formed, but a gloss developing layer was provided directly on the surface of the support, and organic cationic colloidal silica (Silojet P-4000C: manufactured by Grace Japan) was used as the inorganic fine particles. In the same manner as in Example 2, an ink jet recording sheet of the present invention was obtained.

Comparative Example 12

  In Example 1, an ink jet recording sheet of the present invention was obtained in the same manner as Example 3 except that the intermediate layer was not formed and the glossy expression layer was directly provided on the surface of the support.

Comparative Example 13

An ink jet recording sheet of the present invention was obtained in the same manner as in Example 1 except that the absolute dry coating amount of the intermediate layer was set to 30 g / m ^{2 in} Example 1.

Comparative Example 14

In Example 2, the ink jet recording sheet of the present invention was obtained in the same manner as in Example 2 except that the dry coating amount of the intermediate layer was 30 g / m ² .

[Evaluation methods]
Surface quality evaluation and printing evaluation were performed on the ink jet recording sheets obtained in Examples 1 to 8 and Comparative Examples 1 to 14. The coating film strength, surface cracking, glossiness, image clarity, image clarity, ink absorbency, and print density were evaluated by the following methods. The print image clarity, ink absorbency, and print density were evaluated by recording with a PM-950C machine manufactured by Epson, which is an ink jet printer for dye ink. The obtained results are shown in Table 1, Table 2, and Table 3.

"Strength of coating film"
The coated surface was rubbed with a finger to evaluate powder falling.
(Double-circle): There is no powder fall of a coating surface, it does not adhere to a finger, and it is very favorable.
◯: Less powder falling on the coated surface, good adhesion to fingers and good.
Δ: There was a slight powder fall off of the coated surface, and a little adhered to the finger.
X: There is much powder fallen of the coating surface, and it has also adhered to the finger | toe.

"Surface cracks"
The state of surface cracks was evaluated visually.
A: There is no crack on the coated surface, and the surface quality is very good.
○: There are few cracks on the coated surface and the surface quality is good.
(Triangle | delta): There are some cracks of the coating surface, and surface quality is not so good.
X: There are many cracks on the coated surface and the surface quality is poor.

"Glossiness"
With respect to the white background portion of the ink jet recording sheet, the specular gloss at an incident angle of 75 degrees was measured with a gloss meter (GM-26D, manufactured by Murakami Color Research Laboratory) according to the method of JIS P8142.

"Image clarity"
With respect to the white background portion of the ink jet recording sheet, image clarity with an incident angle of 60 degrees and a comb width of 2 mm was measured with a image clarity measuring instrument (ICM-1T, manufactured by Suga Test Instruments Co., Ltd.) according to the method of JIS H8686.

"Image clarity"
The image was printed with a PM-950C machine and visually evaluated for the sharpness of the printed image.
A: The printed image is very clear and the contrast is clear.
○: The printed image is clear and has contrast.
Δ: The printed image is clear but the contrast is not so clear and the image is slightly white blurred.
X: Printed image is not clear and white blur.

"Ink absorbability"
Evaluation of ink absorptivity is performed by attaching high quality paper to the printed surface printed every 5 seconds immediately after printing and observing whether the ink is transferred to the high quality paper. Measure the time until no transfer at all. The measured number of seconds was evaluated in four stages as follows.
A: No transfer at all within 5 seconds immediately after printing.
○: No transfer at all in 5 seconds or more and less than 10 seconds.
(Triangle | delta): The thing which is not transcribed at all within 10 to less than 30 seconds.
X: Transferred even after 30 seconds.

"Print density"
The print density of the black solid part was measured with a reflection densitometer (Dainippon Screen, DM-400).

As is apparent from the results of Tables 1 to 3, in the examples of the present invention, in the ink jet recording sheet which is a recording medium in which an intermediate layer and a glossy expression layer are provided on a support, the intermediate layer includes an acetal resin and a urethane. A gloss-expressing layer mainly composed of one or more resins selected from the group of resins, wherein the dry coating amount of the intermediate layer is 2 to 20 g / m ² , or the thickness of the intermediate layer is 2 to 20 μm. Is an aggregate of primary particles, and is composed of fumed alumina particles having an average particle diameter of 80 to 300 nm and polyvinyl alcohol having a saponification degree of 80 to 99.9 mol% and a polymerization degree of 1500 to 4500 as a binder. , fumed alumina particles and ratio by weight of the binder 100: 3 to 100: a 30, bone dry coating amount of the glossy layer is either a 20 to 70 g / ^{m 2,} or Is a 20~70μm in thickness after forming by post coating drying glossy layer, on the glossy layer, the epichlorohydrin cationic fixing agent dispersed or dissolved in a solvent, and drying treatment after coating An ink jet recording sheet characterized by being applied. In addition, the support includes a film or resin-coated paper.

Claims (2)

In an inkjet recording sheet, which is a recording medium having an intermediate layer and a glossy expression layer provided on a support, the intermediate layer mainly comprises one or more resins selected from the group of acetal resins and urethane resins, The coating amount is ² to 20 g / m ² , or the thickness of the intermediate layer is 2 to 20 μm, the glossy layer is an aggregate of primary particles, and the average particle diameter of the aggregate is from 80 to 300 nm. The fumed alumina particles and polyvinyl alcohol having a saponification degree of 80 to 99.9 mol% and a polymerization degree of 1500 to 4500 as a binder, and the ratio of the fumed alumina particles to the binder is 100: 3 to 100: 30 by weight. The gloss dry layer has an absolute dry coating amount of 20 to 70 g / m ² or a thickness of 20 to 70 μm. Thus, an ink jet recording sheet obtained by forming an epichlorohydrin-based cationic fixing agent on a glossy layer after dispersion, dissolving or dissolving in a solvent, and applying and drying treatment after coating. The inkjet recording sheet according to claim 1, wherein the support is made of a film or resin-coated paper.