JP2001180107A - Illumination indicating body and ink jet recording sheet therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ink jet recording sheet, not spoiling the beautiful appearance of an illumination indicating body even when a resin sheet is deformed by heat or a stress, quick in the drying of ink upon printing, sufficient in color development by transmitted light as well as reflected light and prominent in a resolving power. SOLUTION: The ink jet recording sheet is constituted of a substrate 2 having a mold releasing layer 3 at least on one side of the same or produced by a mold releasing material, and an ink receptor layer 1 while the ink receptor layer 1 is consisting of an ink absorbing layer having the principal constituent of a water-soluble resin, laminated on the mold releasing surface of the substrate sequentially, and an ink transmitting layer having the principal constituent of a pigment and a water-soluble resin. In this case, the reaction force (a tensile strength) of the ink receptor layer 1 is specified so as to be less than 500 g/15 mm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet recording sheet suitable for an ink jet system using an aqueous ink, an illuminated display (an illuminated signboard) using the same, and a method of manufacturing the same.

[0002]

2. Description of the Related Art An image (mirror image) is formed on an illuminated display used for purposes such as advertisement, map, and facility guidance by an ink jet method.
There is a back print recording sheet which prints the image and views it from the opposite side of the printed image. The sheet is required to have good image quality due to light transmitted by the illumination light on the back surface of the film, and is also required to have good image quality even when using reflected light in a time zone or place where there is much external light such as the sun or indoor lighting.

The following characteristics are required for a back print print recording sheet. First, some inkjet printers have a print mode for back printing.However, since this print mode usually has a larger amount of ink than other print modes, high ink absorption is required for the ink jet recording sheet for back print. Can be Next, in the case of outdoor use, good image quality is required at night due to the transmitted light by the illuminated light on the back, but in the time and place where there is a lot of daylight and outside light of indoor lighting, reflected light is used. Also, since good image quality is required, it is necessary to achieve both the color development with transmitted light and the reflected light. Further, it is necessary that the image quality and coloring of the illuminated display body do not deteriorate due to deformation of the resin plate due to heat or stress during manufacturing or over time.

As an ink jet recording sheet for back printing, JP-B-7-2428 and JP-A-9-207
No. 499 is disclosed. Japanese Patent Publication No. 7-2428 discloses a recording material in which an ink holding layer and an ink transmitting layer are sequentially laminated on a light-transmitting base material such as polyester, and has effects such as excellent sharpness and optical density of an image. Is given. JP-A-9-207499 discloses a transfer sheet formed by laminating a hydrophilic resin layer having a transfer image formed on a hydrophobic resin sheet such as polyester and a double-sided adhesive sheet. It is described that there is an effect that the properties, coloring properties, water resistance and the like are improved.

[0005] However, these recording sheets are used with a support such as a hard film adhered to the printed ink receiving layer. That is, these ink jet recording sheets, after printing, the sheet is bonded via an adhesive to a resin plate to be installed in front of the illumination light, the heat and stress applied after the display body is applied, the resin plate, Since the recording sheet is deformed and does not follow the deformation, there is a problem that floating or cracking occurs. Further, when the resin plate repeatedly expands and contracts due to the heat history and a three-dimensional distortion deformation occurs, the bonded recording sheet does not follow the deformation of the resin plate, so that a floating occurs between the recording sheet and the resin plate,
There is a problem that unevenness occurs on the surface of the recording sheet. Further, even if a material that follows the deformation of the resin plate is used as a support for the recording sheet, the support itself is deformed by the heat and tension necessary for coating the ink receiving layer on the support. Problem. When such a problem of deformation occurs, the image quality and coloring of the illuminated display body are significantly impaired.

[0006]

SUMMARY OF THE INVENTION According to the present invention, even if the resin plate is deformed by heat or stress, the aesthetic appearance of the illuminated display body is not impaired, the ink dries at the time of printing is quick, and the transmitted light and the reflected light are reduced. The present invention provides an ink jet recording sheet which is sufficient in color development at high speed and excellent in resolving power. More specifically, even when the resin plate is deformed due to heat of light or other stresses, the ink jet recording sheet which does not generate unevenness on the sheet surface and provides an illuminated display body having good image quality and coloring properties. provide.

[0007]

The subject of the present invention is an ink jet recording sheet comprising a support having at least one side with a release layer or made of a release material, and an ink receiving layer. An ink-absorbing layer composed mainly of a water-soluble resin and an ink-permeable layer mainly composed of a pigment and a water-insoluble resin, wherein the ink receiving layer is sequentially laminated on a release surface of the support; An ink-jet recording sheet for an illuminated display, wherein the reaction force (tensile strength) of the receiving layer is 500 g / 15 mm or less. Another subject of the present invention is a step of printing an image by an ink jet method on the ink receiving layer of the ink jet recording sheet, the ink of the ink jet recording sheet on one side of a transparent or translucent resin plate using an adhesive means. This is a method for producing an illuminated display body, comprising a step of attaching a transparent layer side, and a step of subsequently peeling off the support of the inkjet recording sheet. Still another subject of the present invention is a step of printing an image on the ink receiving layer of the ink jet recording sheet by an ink jet method, a step of attaching a protective film to the ink transmitting layer side of the ink jet recording sheet, This is a method for producing an illuminated display body comprising a step of peeling off the support of the recording sheet and a step of sticking the ink absorbing layer side, which has been peeled off and exposed, to a transparent or translucent resin plate. Still another subject of the present invention is an electrode in which an ink-absorbing layer mainly composed of a water-soluble resin and an ink-permeable layer mainly composed of a pigment and a water-insoluble resin are laminated on a transparent or translucent resin plate. A decorative display body, wherein the image is printed on the ink absorbing layer by an inkjet method.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The ink jet recording sheet of the present invention comprises an ink absorbing layer, an ink receiving layer comprising an ink and a transmission layer, and a support, and the support can be peeled off after printing (FIG. 1). A water-based dye ink or a water-based pigment ink can be used as an ink for an inkjet plotter to be printed. The light transmittance of the ink receiving layer is 3
0 to 50% is appropriate, and the image printed by this is
When viewed from the side of the support to be peeled, an appropriate contrast is obtained with transmitted light.

The ink absorbing layer of the present invention contains a resin as a main component in consideration of the coloring property of an image, but preferably uses a water-soluble resin. As the water-soluble resin, polyvinyl alcohol, polyvinylylpyrrolidone, starches such as oxidized starch and etherified starch, water-soluble celluloses such as methylcellulose and carboxymethylcellulose,
Examples include proteins such as gelatin, casein, and soy protein, and these can be used alone or in combination. In particular, polyvinyl alcohol having a polymerization degree in the range of 1500 to 2200 and a saponification degree of 75 to 85 mol% is preferable. When polyvinyl alcohol having a degree of polymerization of less than 1500 or a degree of saponification of less than 75 mol% is used, when a solid portion having a large amount of ink is printed, the surface of the ink permeable layer dries quickly, but the ink is absorbed by the ink. Since the layer is dissolved, the strength of the coating film as the whole ink receiving layer cannot be obtained, and the polyvinyl alcohol is excessively locally dissolved, so that uniform coloring cannot be obtained. Further, since the ink absorbing layer is sticky when the support is peeled off, there is a problem that a trouble that the ink absorbing layer does not peel off cleanly occurs at the interface between the support and the ink absorbing layer. The polymerization degree is 2300
When polyvinyl alcohol having a saponification degree of 85 mol% or more is used, the ink absorbing speed becomes slow, so that the drying of the surface of the ink permeable layer becomes slow or the ink diffuses in the ink permeable layer. Therefore, the resolution is reduced. The polyvinyl alcohol can be appropriately crosslinked according to the permeability of the ink to be printed. However, if the crosslinking is excessive, the speed of absorbing the ink becomes slow.

When the thickness of the ink-absorbing layer is small, the amount of ink absorbed per unit volume is large, so that the above-mentioned polymerization degree is less than 1500 or the saponification degree is less than 75 mol%. The same result as in the case of using alcohol is likely to occur. Therefore, from the viewpoint of ink drying property, the thicker the ink absorbing layer, the better. In this case, when the resin plate is deformed while the support is peeled off and adhered to the resin plate, the coating film is stretched. As a result, the ink receiving layer does not easily follow the deformation, and large floating or cracking occurs in the ink receiving layer, thereby impairing the aesthetic appearance of the display.

In order to follow the deformation without impairing the aesthetic feeling, the ink receiving layer composed of the ink absorbing layer and the ink transmitting layer described below was pulled (130 mm) by 30% from the reference length (100 mm, width 15 mm). The reaction force (tensile strength) at this time may be 500 g or less. The thickness of the ink absorbing layer is 8 to 14 μm.
Is preferred. An appropriate amount of a plasticizer may be added to the ink receiving layer in order to make it easier to expand. Further, a small amount of a porous pigment may be added in order to shorten the ink drying time. However, if the amount is large, the whiteness of the pigment that has not absorbed the ink is conspicuous. Further, a fluorescent agent may be added to increase whiteness, an ultraviolet absorber may be added to prevent fading of the ink, or a cationic resin may be added as an ink fixing agent. In addition, various auxiliaries such as known defoaming agents and leveling agents may be added to the extent that the effects of the present invention are not impaired.

The ink permeable layer of the present invention contains a pigment and a water-insoluble resin as main components. As the pigment, a white pigment is preferable. This white pigment is selected to have an appropriate oil absorption in accordance with the type of ink to be printed so that the ink reaches the ink absorbing layer quickly. Thereby, excellent image quality can be obtained when viewed from the support side. If the ink does not reach the ink absorbing layer sufficiently, the reflection color density is low and the image is whitish, that is, the difference is not conspicuous when viewed only with transmitted light, but when viewed with reflected light, the image becomes whitish. I can see. When a pigment ink is used as the ink, it is preferable to use a pigment having a small oil absorption because of low permeability, and in order to prevent the ink from remaining in the ink permeable layer, JIS-K510 is used as a main white pigment.
It is preferable to use a plastic pigment or a surface-treated silica having an oil absorption of less than 100 ml / 100 g according to No. 1-19 standard. When a dye ink is used as the ink, a pigment having a high oil absorption is preferably used because it has high permeability and bleeding is likely to occur, and silica or the like having an oil absorption of 100 ml / 100 g or more as defined above is particularly preferable.

The binder used in the ink permeable layer is made of a water-insoluble resin because the ink is difficult to pass through when dissolved and swollen with the aqueous ink. Examples of the non-aqueous resin include polyester resins such as polyethylene terephthalate, various olefin resins, styrene resins, vinyl naphthalene resins, and vinylidene fluoride resins. When using a white pigment having a large oil absorption, using a water-soluble resin as a binder in consideration of the compatibility between the white pigment and the solvent, it may be cross-linked in a drying step to make it non-water-soluble, or A water-dispersible resin may be used. The glass transition temperature of the binder is preferably 20 ° C. or lower in order to obtain the cohesive force of the ink permeable layer and to prevent the expansion of the ink absorbing layer. In the ratio of the white pigment and the binder, when the amount of the white pigment is large, the cohesive force of the coating film is reduced, and there is a problem such as powder drop. There is a problem that it is difficult for the ink to pass through and the ink stagnant on the surface layer dries slowly. Therefore the ratio of binder to pigment (binder / pigment)
Is suitably in the range of 60/40 to 20/80. Further, auxiliary agents such as a fluorescent agent, an ultraviolet absorber, a cationic resin, and a surfactant may be added to the ink permeable layer.

The support of the present invention has resistance to heat and tension received in the step of coating the ink receiving layer, has the rigidity required for printing, and allows an image to be confirmed from the support side after printing a mirror image. Use something that is reasonably transparent. For example, a transparent acrylic resin film, polyester film, or the like is preferable, and the thickness is preferably 50 to 125 μm. A release layer is provided on the support so that the ink absorbing layer and the support can be separated from each other. This release layer may be formed by, for example, applying a wax, a higher fatty acid, an olefin resin, a fluororesin, a silicone resin, or the like on a support. Alternatively, the support may be made of a release material. This release material is, for example, an olefin resin, a fluororesin, a silicone resin, or the like. The resin plate of the present invention is not particularly limited as long as it has the strength and rigidity that constitute the illuminated display, but is preferably transparent or translucent. Examples of the resin plate include acrylic resin such as polymethacrylic acid ester, polycarbonate resin, polyethylene resin, polyester resin, and polystyrene resin.

In order to produce the illuminated display of the present invention, first, an image 4 is printed on the ink receiving layer of the recording sheet by the ink jet method, and then, for example, the following method is performed. In the first method, as shown in FIG. 2, a step of adhering to the transparent or translucent resin plate 5 using an adhesive or a double-sided adhesive film or the like on the ink permeable layer 1 side and peeling the support 3 The process. After the support 3 is peeled off, a protective film (not shown in FIG. 2) may be adhered to the exposed ink absorbing layer 2, in which case the ink transmitting layer 1 and the resin plate 5 is used in combination with the use of a double-sided adhesive film to adhere to the ink-transmitting layer 1. First, only one side of the double-sided adhesive film is adhered to the ink-permeable layer 1, and the support 3 is peeled off before the other side is adhered to the resin plate 5. A protective film is overlaid on the exposed ink absorbing layer 2. Thereafter, the other side of the double-sided adhesive film is adhered to the resin plate 5 to form a display. In the above-described embodiment, the display is arranged so that the ink absorbing layer 2 that has been peeled off and exposed is on the viewing side.

In the second method, as shown in FIG. 3, a step of bonding a protective film 6 to the ink permeable layer 1 side of the recording sheet, a step of peeling off the support 3, and a step of removing the exposed ink absorbing layer 2 Alternatively, it comprises a step of bonding to the translucent resin plate 5. In this usage mode, the display is arranged so that the resin plate 5 side is the viewing side. In these two methods, it is preferable to use a polyvinyl chloride film, an acrylic film, or the like, which is more easily deformed than a polyester film, as the support of the double-sided adhesive film and the protective film. Further, a heat, pressure, reaction type adhesive or a film to which these are already applied may be used for bonding each film. In order to follow the deformation of the resin plate, it is preferable to use acrylic, rubber, ethylene-vinyl acetate copolymer, ethylene-acrylate, or the like as the adhesive.

[0017]

【Example】Example 1  75 μm thick with silicone resin applied as release agent
Supporting transparent polyethylene terephthalate sheet
(250 x 350 mm)
Thickness of the ink absorbing layer coating solution prepared as above
Is applied to be 12 μm and dried.
Thickness after drying the ink permeable layer coating solution prepared as
The coating is dried to a thickness of 20 μm and dried.
Was made. Here, "part" represents "part by weight". Coating solution for ink absorption layer: polyvinyl alcohol (polymerization
Degree 2000, saponification degree 79%) 8 parts, water 46 parts, methanol
46 parts. Coating solution for ink permeable layer: Polyester (Byron 50
0: 5 parts by Toyobo Co., Ltd.), organic pigment (Eposter M)
30: Nippon Shokubai Co., Ltd., oil absorption 80ml / 100g)
15 parts, toluene 50 parts, methyl ethyl ketone 30 parts.

[0018]Example 2  Apply so that the ink absorbing layer of Example 1 is 14 μm.
Ink jet recording in the same manner as in Example 1 except that
Sheet was prepared.Example 3  Apply so that the ink absorbing layer of Example 1 is 10 μm
Ink jet recording in the same manner as in Example 1 except that
Sheet was prepared.Example 4  Apply so that the ink absorbing layer of Example 1 is 8 μm
Except for drying, the same as in Example 1 for inkjet recording
A sheet was prepared.Example 5  The coating liquid for the ink absorbing layer of Example 1 was used as a plasticizer
Except for adding ethylene glycol and changing to the following,
An ink jet recording sheet was prepared in the same manner as in Example 1.
Was. Coating solution for ink absorption layer: polyvinyl alcohol (polymerization
Degree 2000, saponification degree 79%) 7.6 parts, polyethylene glyco
(Polymerization degree 400) 0.4 parts Water 46 parts, methanol 4
6 parts.

[0019]Comparative Example 1  Transparent polyethylene without 75 μm thick release layer on support
Using a lentephthalate sheet, peel off the support
In the same manner as in Example 1, the ink jet recording sheet was used.
Was made.Comparative Example 2  In Example 1, the ink absorbing layer was not provided, and
An ink jet recording sheet with a direct ink transmission layer
Was prepared.Comparative Example 3  Except that the coating liquid for the ink permeable layer of Example 1 was changed as follows
Produces an inkjet recording sheet in the same manner as in Example 1.
did. That is, the ink permeable layer becomes water-soluble. Coating solution for ink permeable layer: polyvinyl alcohol (polymerization
Degree 2000, saponification degree 79%) 5 parts, organic pigment (Eposta)
-M30: Nippon Shokubai Co., Ltd.) 15 parts, water 40 parts, meta
Knoll 40 parts.Comparative Example 4  Apply so that the ink absorbing layer of Example 1 is 16 μm.
Ink jet recording in the same manner as in Example 1 except that
Sheet was prepared.

An ink-jet plotter, Roland CAMM JET was added to the recording sheet thus prepared.
A test pattern was printed using a water-soluble ink by (CJ-70), and the ink drying property, color development in transmission and reflection, and resolution were evaluated by the following methods. In addition, using a double-sided adhesive film, the ink permeable layer side is made of a resin
2 mm), and the following property was evaluated by the following method. Each evaluation was performed according to the following criteria.

Ink drying property : The solid printed portions of black, red, blue and green were strongly pressed with a finger, and the transfer of ink and the film strength were evaluated. A sample that was less than 10 seconds after the end of printing, did not transfer ink, and did not collapse the ink receiving layer was evaluated as ○ (good), and a sample that required 30 seconds or more was evaluated as x (bad). The middle one was marked as △. Color development : Light was irradiated from the support side, and the color development of the solid printed portions of yellow, magenta, cyan and black was evaluated. If the whiteness of the background was not retained and the coloration was uniform and sufficient, the color was good (good), the whiteness that remained clearly, or the color was not uniform was rated x (bad), and the intermediate one was Δ. .

Resolving power : Observation of the unprinted fine line of 300 μm in the black solid print portion was observed. Fine lines were clearly observed. Fine lines were observed. ), And the intermediate one is marked with △. Followability : After bonding the ink permeable layer side to the resin plate, the support was peeled off. However, the sheet of Comparative Example 1 was subjected to the following evaluation as it was in the same manner as other films without peeling the support. Leave in an oven at 100 ° C. for 1 hour, apply force from both ends with the adhesive side of the resin plate facing upward, and forcibly deform the center of the resin plate so that it rises about 3 cm from both ends, about 1 minute The operation of holding, then releasing the force and leaving to cool to room temperature was repeated 5 cycles. ○ (good), which follows the deformation of the resin plate and has no floating or cracking that impairs the beauty of the display
Those that are not are marked as x (bad).

Reaction force : According to the tensile test method of JIS K7127, the ink receiving layer having a width of 15 mm
Reaction force (tensile force) (g / g) when 30% is pulled (ie, 130 mm) from the reference length (100 mm) at mm / min.
15 mm). Table 1 shows the above evaluations and measurement results. The overall evaluation in the table was x (bad overall) if there was at least one x (bad) in each evaluation, up to one (good overall), and △ for all others.

[0024]

[Table 1]

[0025]

As is evident from Table 1, the ink jet recording sheet of the present invention does not have a rigid support when attached to a resin plate, so that it follows the deformation of the resin plate well and floats. This has an effect that is not provided by conventional products in that a display body having excellent aesthetic feeling is obtained without causing cracks or cracks. Further, the ink jet recording sheet of the present invention is excellent in ink drying property, color developing property and resolution.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an inkjet recording sheet.

FIG. 2 is a schematic view showing a manufacturing method of an illuminated display body by a cross section.

FIG. 3 is a schematic view showing a manufacturing method of another illuminated display body by a cross section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ink transmission layer 2 Ink absorption layer 3 Support 4 Image part 5 Transparent or translucent resin plate 6 Protective film

[Procedure amendment]

[Submission date] January 7, 2000 (2000.1.7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

When the thickness of the ink-absorbing layer is small, the amount of ink absorbed per unit volume is large, so that the above-mentioned polymerization degree is less than 1500 or the saponification degree is less than 75 mol%. The same result as in the case of using alcohol is likely to occur. Therefore, from the viewpoint of ink drying property, the thicker the ink absorbing layer, the better. In this case, when the resin plate is deformed while the support is peeled off and adhered to the resin plate, the coating film is stretched. no longer follow the Nikuku deformation, large floating or cracking in the ink-receiving layer in some cases compromise the aesthetics of the display body occurs.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

The ink permeable layer of the present invention contains a pigment and a water-insoluble resin as main components. As the pigment, a white pigment is preferable. This white pigment is selected to have an appropriate oil absorption in accordance with the type of ink to be printed so that the ink reaches the ink absorbing layer quickly. Thereby, excellent image quality can be obtained when viewed from the support side. White pigment
Different types may be mixed. If the ink does not reach the ink absorbing layer sufficiently, the reflection color density is low and the image is whitish, that is, the difference is not conspicuous when viewed only with transmitted light, but when viewed with reflected light, the image becomes whitish. I can see. When a pigment ink is used as the ink, it is preferable to use a pigment having a small oil absorption because the ink has low permeability, and in order to prevent the ink from remaining in the ink permeable layer, JIS-K5101 is mainly used as a white pigment.
It is preferable to use a plastic pigment or a surface-treated silica having an oil absorption of less than 100 ml / 100 g according to -19 standard. When a dye ink is used as the ink, it is preferable to use a pigment having a large oil absorption because the ink permeability is high and bleeding is likely to occur. In particular, silica having an oil absorption of 100 ml / 100 g or more as defined above is used. preferably rather it is used.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction contents]

[0013] The binder used in the ink permeable layer, dissolved in an aqueous ink, swelling to the ink may turn hard to pass <br/>, using a non-water-soluble resin. Examples of the non-aqueous resin include polyester resins such as polyethylene terephthalate, various olefin resins, styrene resins, vinyl naphthalene resins, and vinylidene fluoride resins. In the case of using a white pigment having a large oil absorption, a water-soluble resin is used as a binder in consideration of the dispersibility of the white pigment , and the binder may be crosslinked in a drying step so as to be insoluble in water, or may be dispersed in water. You may use the resin of the nature. The glass transition temperature of the binder is preferably 20 ° C. or lower in order to obtain the cohesive force of the ink permeable layer and to prevent the expansion of the ink absorbing layer. In the ratio of the white pigment and the binder, when the amount of the white pigment is large, the cohesive force of the coating film is reduced, and there is a problem such as powder drop. hardly pass, ink or stagnant <br/> surface, problems such as slow drying occurs. Therefore the ratio of binder to pigment (binder / pigment)
Is suitably in the range of 60/40 to 20/80. Further, auxiliary agents such as a fluorescent agent, an ultraviolet absorber, a cationic resin, and a surfactant may be added to the ink permeable layer.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Norio Yabe 1551 Hira, Higashimatsuyama-shi, Saitama Nippon Paper Industries Higashimatsuyama Works F-term (reference) 2C056 EA04 EA13 FB01 FC06 2H086 BA02 BA13 BA15 BA33 BA35 BA36 BA41 5C096 AA29 BA01 CA02 CA12 CA28 CA32 CB07 EA04 EB02 EB16 EB18 FA09

Claims (4)

[Claims] 1. An ink jet recording sheet comprising a support having at least one surface with a release layer or made of a release material and an ink receiving layer, wherein said ink receptor layer is provided with a release member. It comprises an ink absorbing layer mainly composed of a water-soluble resin and an ink transmitting layer mainly composed of a pigment and a water-insoluble resin, which are sequentially laminated on the mold surface, and the ink receiving layer has a reaction force (tensile strength) of 500 g. / 15 mm or less ink jet recording sheet for an illuminated display. 2. A step of printing an image on the ink receiving layer of the ink jet recording sheet according to claim 1 by an ink jet method, and applying the ink jet recording sheet to one side of a transparent or translucent resin plate using an adhesive means. A method for producing an illuminated display comprising a step of attaching an ink-permeable layer side and a step of subsequently peeling off the support of the ink jet recording sheet. 3. The step of printing an image on the ink receiving layer of the ink jet recording sheet according to claim 1 by an ink jet method, the step of attaching a protective film to the ink permeable layer side of the ink jet recording sheet, and then the step of ink jet A method for producing an illuminated display, comprising: a step of peeling off the support of the recording sheet; and a step of sticking the ink absorbing layer side, which has been peeled off and exposed, to a transparent or translucent resin plate. 4. An illuminated display body comprising a transparent or translucent resin plate laminated with an ink absorbing layer mainly composed of a water-soluble resin and an ink transmitting layer mainly composed of a pigment and a water-insoluble resin. And an illuminated display on which an image is printed on the ink absorbing layer by an ink jet method.