JP2001138620A - Liquid-like ink recording gloss paper and manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide liquid-like ink recording gloss paper having a glass and a method for manufacturing it. SOLUTION: The method for manufacturing a liquid-like ink recording gloss paper having a base material 12, an intermediate layer 14 formed on one main surface of the material 12, and a glass layer 16 formed on the surface of the layer 14 comprises the steps of closely contacting a film 18 having a smooth surface with the surface of a material 16a of the gloss layer, forming a film of the material 16a, and then releasing the film 18 in such a manner that the layer 14 is formed to be received between the layer 16 and the material 12. The liquid-like ink recording gloss paper 10 has the layer 16 formed by the above-described method.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid ink recording medium for printing, for example, an ink jet ink by an ink jet printer, and more particularly to a glossy liquid ink recording paper having gloss and a method of manufacturing the same.

[0002]

2. Description of the Related Art In an ink jet recording system, minute droplets of ink are ejected from minute nozzles and fixed on a recording sheet such as paper to record images and characters.
There are many operating principles. Since it has features such as high speed, low noise, easy multi-coloring, great flexibility of recording patterns, and no need for development and fixing, it is used in various applications as a recording method for various figures and color images. ing.

[0003]

The recording medium used in this ink jet recording system has a high density of printed dots, a fast absorption of ink jet ink, and a dot overlap when printed. In such a case, it is required that the ink does not flow or bleed, and that the dots in the horizontal direction when printed are not unnecessarily large and are not blurred. On the other hand, since a recording medium having a higher surface gloss is conventionally preferred by consumers, an inkjet recording medium having a gloss finish has been proposed. Is desired.

SUMMARY OF THE INVENTION It is, therefore, a primary object of the present invention to provide a glossy liquid ink recording glossy paper and a method for producing the same.

[0005]

According to a first aspect of the present invention, there is provided a method for producing a glossy paper for liquid ink recording, comprising: a base material; an intermediate layer formed on one main surface thereof; A method for producing a glossy paper for liquid ink recording including a glossy layer, wherein a film having a smooth surface is adhered to the surface of the glossy layer material, and the film is formed after forming the glossy layer material into a film. The intermediate layer is a method for producing glossy paper for recording liquid ink, wherein the intermediate layer is formed so that the liquid ink is received between the glossy layer and the substrate. According to a second aspect of the present invention, there is provided a method for producing a glossy paper for liquid ink recording, wherein a glossy layer material is applied on an intermediate layer, and a smooth surface of a film is adhered to the glossy layer material to form a glossy layer. The method for producing a glossy paper for liquid ink recording according to claim 1, wherein the film is peeled off from the glossy layer after that. According to a third aspect of the present invention, there is provided a method for producing a glossy paper for liquid ink recording, comprising applying a glossy layer material to a smooth surface of a film, and laminating the glossy layer material application surface onto a substrate. The method for producing a glossy paper for liquid ink recording according to claim 1, wherein the film is peeled from the glossy layer after forming the glossy layer. The method for producing glossy paper for liquid ink recording according to claim 4 of the present invention, wherein the glossy layer is provided with a coating containing a colloidal silica composite emulsion. This is a method for producing glossy paper for liquid ink recording. In the method for producing a glossy paper for liquid ink recording according to claim 5 of the present invention, the glossy layer is formed by applying a material obtained by mixing a water-soluble resin or an emulsion resin with a low water-absorbing filler such as colloidal silica. A method for producing a glossy paper for liquid ink recording according to any one of claims 1 to 3. In the method for producing a glossy paper for liquid ink recording according to claim 6 of the present invention, the intermediate layer constitutes an ink receiving layer for receiving the liquid ink, and the liquid ink is supplied to the intermediate layer from the fine holes formed in the glossy layer. The method for producing a glossy paper for liquid ink recording according to any one of claims 1 to 5, wherein the glossy paper is formed so as to penetrate. The method for producing a glossy paper for liquid ink recording according to claim 7 of the present invention, wherein the intermediate layer includes an ink fixing agent and a pigment that absorbs a dye or the like of the ink,
The method for producing glossy paper for liquid ink recording according to any one of claims 1 to 6, wherein the glossy paper is formed so as to adsorb the liquid ink. The method for producing a glossy paper for liquid ink recording according to claim 8 of the present invention, wherein the intermediate layer is formed by applying a mixture of a pigment containing synthetic silica to a base material. This is a method for producing glossy recording paper. A glossy paper for liquid ink recording according to a ninth aspect of the present invention is a glossy paper for liquid ink recording, wherein a glossy layer is formed by the method according to any one of the first to fifth aspects.
A glossy paper for liquid ink recording according to a tenth aspect of the present invention is a glossy paper for a liquid ink recording having an intermediate layer formed by the method according to any one of the sixth to eighth aspects.

[0006]

According to the present invention, an intermediate layer is formed on one principal surface of a substrate such as paper or film, and a gloss layer is formed on the surface of the intermediate layer. Since it is formed so as to be received by the intermediate layer therebetween, it has excellent surface gloss, and liquid ink is received and recorded in the intermediate layer between the glossy layer and the base material. In particular, according to the inventions of claim 4 and claim 5, a glossy paper for recording a liquid ink having a high gloss can be obtained, but the liquid ink permeates the intermediate layer through the fine holes formed in the glossy layer and is held. You. In particular, according to the invention of claim 6, since the intermediate layer is formed of an ink receiving layer for receiving liquid ink, a glossy paper for recording liquid ink having a high gloss can be obtained, but the fine holes formed in the gloss layer are formed. More liquid ink permeates the intermediate layer and is held. In particular, according to the invention of claim 7, the intermediate layer includes an ink fixing agent and a pigment that absorbs a dye or the like of the ink, and is formed such that the liquid ink is adsorbed. In particular, according to the invention of claim 8, since the intermediate layer is formed by applying a mixture containing a pigment containing synthetic silica to the base material, the intermediate layer is formed so as to adsorb the liquid ink.

The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments of the present invention with reference to the drawings.

[0008]

FIG. 1 is a schematic sectional view of a glossy paper for recording a liquid ink according to a first embodiment of the present invention. The glossy paper 10 for liquid ink recording is provided on one main surface (front surface) of a base material 12 made of a high-quality paper or a synthetic resin film / sheet or the like as an ink receiving layer serving as an intermediate layer for receiving an oily or aqueous inkjet ink. A gloss layer 16 located on the outermost surface on a main surface (front surface) of the ink receiving layer 14 opposite to the main surface on the substrate 12 side.
Are formed.

The ink receiving layer 14 is composed of an inorganic pigment and / or an organic pigment and a coating composition such as an ink fixing agent, a binder, other pigment dispersants, and a waterproofing agent. At least one layer is provided between the material 12 and the gloss layer 16.

The pigment forming the ink receiving layer 14 includes silica, colloidal silica, calcium carbonate, aluminum oxide and the like. More specifically, a white pigment is suitable as the pigment. Examples of such a white pigment include light calcium carbonate, heavy calcium carbonate, magnesium carbonate, kaolin, talc, calcium sulfate, barium sulfate, and dioxide. Titanium, zinc oxide, zinc sulfide, zinc carbonate, satin white, aluminum silicate, diatomaceous earth, calcium silicate, magnesium silicate,
Synthetic amorphous silica, colloidal silica, alumina, colloidal alumina, pseudoboehmite, aluminum hydroxide,
Inorganic pigments such as lithopone, zeolite, hydrohaloysite, and magnesium hydroxide: organic pigments such as styrene-based plastic pigment, acrylic-based plastic pigment, polyethylene, microcapsules, urea resin, and melamine resin.

Examples of the ink fixing agent (cationizing agent) for forming the ink receiving layer 14 include quaternary ammonium salt polymers, polyamines and derivatives thereof, alkylamine polymers, and dicyandiamide type cationic resins.

As a binder for forming the ink receiving layer 14, PVA such as silicon-modified polyvinyl alcohol,
Examples include starch, SBR-based latex, acrylic-based resin, urethane-based resin, and the like. More specifically, as the binder, for example, oxidized starch, etherified starch,
Starch derivatives such as phosphate esterified starch; cellulose derivatives such as carboxymethylcellulose and hydroxyethylcellulose; casein, gelatin, soybean protein, polyvinyl alcohol or derivatives thereof; polyvinyl alcohol having various degrees of oxidation or silanol modified products thereof, carboxylated products, and cationized products. Various derivatives such as polyvinylpyrrolidone, maleic anhydride resin, styrene-butadiene copolymer, methyl methacrylate-butadiene copolymer, and other conjugated diene-based copolymer latex; acrylic acid ester and methacrylic acid ester polymer or copolymer Acrylic polymer latex such as coalesce; vinyl polymer latex such as ethylene vinyl acetate copolymer; or functional group-modified polymer of these various polymers with a functional group-containing monomer such as carboxy group Tex; an aqueous adhesive such as a thermosetting synthetic resin such as a melamine resin or a urea resin; an acrylic such as polymethyl methacrylate; an acid ester; a polymer or copolymer resin of a methacrylic ester; a polyurethane resin, an unsaturated polyester resin; Synthetic resin adhesives such as vinyl chloride-vinyl acetate copolymer, polyvinyl butyral, and alkyd resin can be used.

In addition, a water-resistant agent such as a melamine resin may be included as a coating composition of the ink receiving layer 14 as necessary. Further, the ink receiving layer 14 may be mixed with other materials for various purposes. For example, pigment dispersants, thickeners, flow improvers, defoamers, defoamers, release agents,
Various additives such as foaming agents, penetrants, coloring dyes, coloring pigments, fluorescent whitening agents, ultraviolet absorbers, antioxidants, preservatives, anti-binders, wet paper strength agents, dry paper strength agents, It can be appropriately compounded according to the purpose. In particular, secondary amines, tertiary amines, and quaternary ammonium salts which form insoluble salts with sulfonic acid groups, carboxyl groups, amino groups, etc. in water-soluble direct dyes and water-soluble acid dyes which are the dye components of aqueous inks When the cationic dye fixing agent is mixed, the dye is captured in the ink receiving layer 14. Therefore, it is possible to suppress the outflow and bleeding of the ink when water is dropped or when moisture is absorbed due to the improvement in color and the formation of an insoluble salt.

The mixing ratio of the pigment and the binder in the coating composition constituting the ink receiving layer 14 is such that the binder is 3 to 70 parts by weight based on 100 parts by weight of the pigment. Preferably, the amount is 5 to 50 parts by weight. However, if the blending ratio of the binder to 100 parts by weight of the pigment is less than 3 parts by weight, the coating strength of the ink receiving layer 14 may be insufficient. On the other hand, if the blending ratio of the binder exceeds 70 parts by weight, the ink absorbency of the ink receiving layer 14 may decrease.

For example, the mixing ratio of the pigment and the binder in the coating composition constituting the ink receiving layer 14 is as follows. As a pigment, 100 parts by weight of solid or powdered amorphous silica (silicon dioxide SiO ₂ ) which is a porous material as a pigment, 45 parts by weight of polyvinyl alcohol as a binder, and 45 parts by weight of an ink fixing agent as a binder.
Liquid dicyandiamide-type cation resin in a weight ratio of 3
0 parts by weight, acetal (formal) as a waterproofing agent
Was mixed with 1 part by weight of powdery hexametaphosphoric acid as a dispersant to form an ink receiving layer 14.

The coating amount of the ink receiving layer 14 cannot be specified unconditionally because it varies depending on the required gloss, ink absorbency, type of support, etc., but it is usually 1 g / m ² or more, preferably 5 g / m ² or more. 15 g / m ² . In addition, the ink receiving layer 14
Alternatively, a certain amount of coating may be applied twice.

The coating of the ink receiving layer 14 can be performed by using various coating devices on-machine or off-machine. As a coating device, for example, various flade coaters,
There are roll coaters, air knife coaters, bar coaters, rod plate coaters, curtain coaters, short dwell coaters, size presses, and the like. In addition, the ink receiving layer 1
After applying the ink receiving layer to smooth the surface of No. 4, a flattening finish may be performed using a calender such as a machine calender, a TG calender, and a soft calender. Note that the number of ink receiving layers 14 can be appropriately determined as needed.

The gloss layer 16 has a transparency and is composed of a coating composition comprising a colloidal silica composite emulsion or the like, and at least one layer is provided on the substrate 12 and the ink receiving layer 14 as a support. It is painted. The colloidal silica composite emulsion includes colloidal silica / acryl / styrene, colloidal silica / acryl,
The main component is silica / acryl / styrene.

The gloss layer 16 may be provided as a filler with a material such as colloidal silica having a low water absorption or colloidal zirconia mixed with a water-soluble resin such as polyvinyl alcohol or an emulsion resin.
In order to appropriately impart water resistance to polyvinyl alcohol or the like, for example, a water-resistant agent of a urea / glyoxal / acrylamide polymer may be mixed or a curing agent may be mixed. The water-soluble resin may be mixed, for example, in an amount of 0.001 to 100 parts by weight with respect to 100 parts by weight of colloidal silica. However, when the amount of the water-soluble resin is 0.001 or less, the coating strength of the glossy layer is hardly obtained and the coatability is poor. Does not reach the ink receiving layer through the layer.

The glossy paper 10 is formed so that the surface of the glossy layer 16 is smooth, thereby forming a beautiful glossy paper 10 for liquid ink recording.

In order to manufacture such a glossy paper 10 for recording a liquid ink, a glossy layer material 16a is applied on the substrate 12, and as shown in FIG. 18 is adhered. As the film 18,
Those having a smooth surface are used. Examples of such a film 18 include a polyethylene film, a polypropylene film, a polyamide (nylon) film, a polyester film, a polyethylene naphthalate film, a polystyrene film, a polyvinyl alcohol (vinylon) film, a polyether ketone film, a polysulfone film, and a polyether. Films such as sulfone film, polyetherimide film, ethylene copolymer film such as EVA copolymer film and ionomer film, polycarbonate film, cellophane film, polyvinyl chloride film, polyvinylidene chloride film, aluminum foil, acetate film, etc. , A film having a smooth surface other than this,
Alternatively, paper and a film obtained by laminating these films can be used. Further, in order to improve the releasability from the gloss layer 16, a release agent may be applied.

After the film 18 is brought into close contact with the applied glossy layer material 16a, the glossy layer material 16a is dried and formed into a film to form the glossy layer 16, and then the film 18 is peeled off. In FIG. 2, the glossy layer material 16a indicated by diagonal lines is in an undried state. Film 1
8 has a smooth surface, the surface of the glossy layer 16 from which the film 18 has been peeled off becomes smooth, and the beautiful glossy paper 1
0 can be obtained. Therefore, in the process of producing glossy paper, the production of glossy paper can be simplified without the need for an ultraviolet irradiation device or the like.

In order to form the gloss layer 16, FIG.
As shown in FIG. 3, the surface of the film 18 has a gloss layer material 16a.
May be applied. In this case, the layer of the gloss layer material 16a is pressed against the surface of the ink receiving layer 14 before the gloss layer material 16a dries. After the gloss layer material 16a is dried and the gloss layer 16 is formed, the film 18
Is peeled off from the gloss layer 16. As described above, the gloss layer material 16a may be applied to the base material 12 side or may be applied to the film 18 side. By peeling the film 18 after the gloss layer 16 is formed, The glossy paper 10 having gloss can be obtained.

According to the present invention, when applied, the glossy layer 1
When a fine hole is formed in 6 and the ink jet ink is caused to fly by an ink jet printer or the like, the ink jet ink permeates from the glossy layer 16 into the ink receiving layer 14.

The ink used for the glossy paper for ink jet recording according to the present invention may be aqueous or oily. The aqueous ink is a recording liquid comprising the following colorant, liquid medium, and other additives. Examples of the coloring agent include water-soluble dyes such as direct dyes, acid dyes, basic dyes, reactive dyes, and food dyes.

For example, direct dyes include C.I. I. Direct Black 2,4,9,11,14,17,19,22,27,3
2,36,38,41,48,49,51,56,6
2,71,74,75,77,78,80,105,1
06,107,108,112,113,117,13
2,146,154,194 C.I. I. Direct Yellow 1,2,4,8,11,12,24,26,27,2
8, 33, 34, 39, 41, 42, 44, 48, 5
0,51,58,72,85,86,87,88,9
8, 100, 110 C.I. I. Direct Orange 1,2,4,8,9,11,13,17,20,23,
24, 28, 31, 33, 37, 39, 44, 46, 4
7, 48, 51, 59, 62, 63, 73, 75, 7
7,80,81,83,84,85,90,94,9
9, 101, 108, 110, 145, 189, 19
7, 220, 224, 225, 226, 227, 230 C.I. I. Direct Red 1,2,4,8,9,11,13,17,20,23,
24, 28, 31, 33, 37, 39, 44, 46, 4
7, 48, 51, 59, 62, 63, 73, 75, 7
7,80,81,83,84,85,90,94,9
9, 101, 108, 110, 145, 189, 19
7, 220, 224, 225, 226, 227, 230 C.I. I. Direct Blue 1,2,6,8,15,22,25,34,69,7
0, 71, 72, 75, 76, 78, 80, 81, 8
2,83,86,90,98,106,108,11
0,120,123,158,163,165,19
2,193,194,195,196,199,20
0, 201, 202, 203, 207, 218, 23
6,237,239,246,258 C.I. I. Direct Green 1, 6, 8, 28, 33, 37, 63, 64 C.I. I. Direct Brown 1A, 2, 6, 25, 27, 44, 58, 95, 10
0,106,112,173,194,195,20
9, 210, 211 and the like.

Examples of the acid dye include C.I. I. Acid Black 1,2,7,16,17,24,26,28,31,4
1,48,52,58,60,94,107,109,
112, 118, 119, 121, 122, 131, 1
55,156 C.I. I. Acid Orange 7, 8, 10, 33, 56, 64 C.I. I. Acid Red 1,4,6,8,13,14,15,18,19,2
1,26,27,30,32,34,35,37,4
0, 42, 51, 52, 54, 57, 80, 82, 8
3,85,87,88,89,92,94,97,10
6,108,110,115,119,129,13
1,133,134,135,154,155,17
2,176,180,184,186,187,24
9, 254, 256, 317, 318 C.I. I. Acid Violet 7, 11, 15, 34, 35, 41, 43, 49, 75 C.I. I. Acid Blue 1,7,9,22,23,25,27,29,40,4
1,43,45,49,51,53,55,56,5
9,62,78,80,81,83,90,92,9
3,102,104,111,113,117,12
0,124,126,145,167,171,17
5,183,229,234,236 C.I. I. Acid Green 3, 12, 19, 27, 41, 9, 16, 20, 25 C.I. I. Acid Brown 4,14 and the like.

Examples of the basic dye include C.I. I. Basic Black 2,8 C.I. I. Basic Yellow 1, 2, 11, 12, 14, 21, 32, 36 C.I. I. Basic Orange 2,15,21,22 C.I. I. Basic Red 1, 2, 9, 12, 13, 37 C.I. I. Basic Violet 1,3,7,10,14 C.I. I. Basic Blue 1,3,5,7,9,24,25,26,28,29 C.I. I. Basic Green 1,4 C.I. I. Basic Brown 1,12 and the like.

Examples of the reactive dye include C.I. I. Reactive Black 1,3,5,6,8,12,14 C.I. I. Reactive Yellow 1,2,3,13,14,15,17 C.I. I. Reactive Orange 2,5,7,16,20,24 C.I. I. reactive Red 6,7,11,12,15,17,21,23,24,
35, 36, 42, 63, 66 C.I. I. Reactive Violet 2,4,5,8,9 C.I. I. Reactive Blue 2,5,7,12,13,14,15,17,18,1
9,20,21,25,27,28,37,38,4
0,41 C.I. I. Reactive Green 5, 7 C.I. I. Reactive Brown 1, 7, 16 and the like.

Further, as food colorings, C.I. I. Food Black 2 C.I. I. Food Yellow 3,4,5 C.I. I. Food Red 2,3,7,9,14,52,87,92,94,10
2,104,105,106 C.I. I. Food Violet 2 C.I. I. Food Blue 1,2 C.I. I. Food Green 2,3 and the like.

As the liquid medium of the aqueous ink, water and various water-soluble organic solvents such as methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, sec-
C1-C4 alkyl alcohols such as butyl alcohol, tert-butyl alcohol, and isobutyl alcohol; amides such as dimethylformamide and dimethylacetamide; ketones or ketone alcohols such as acetone and diacetalcohol; tetrahydrofuran and dioxane Ethers; polyalkylene glycols such as polyethylene glycol and polypropylene glycol; ethylene glycol, propylene glycol, butylene glycol, triethylene glycol, 1,2,6
-Alkylene glycols having 2 to 6 alkylene groups such as hexanetriol, thiodiglycol, hexylene glycol, diethylene glycol; and many such as glycerin, ethylene glycol methyl ether, diethylene glycol methyl (or ethyl) ether, and triethylene glycol monomethyl ether. And lower alkyl ethers of polyhydric alcohols. Among these many water-soluble organic solvents, polyhydric alcohols such as diethylene glycol and lower alkyl ethers of polyhydric alcohols such as triethylene glycol monomethyl ether and triethylene glycol monoethyl ether are preferred. Other additives include, for example, a pH adjuster, a sequestering agent, a fungicide, a viscosity adjuster, a surface tension adjuster, a wetting agent,
Surfactants, rust inhibitors and the like.

Example 1 9.5 g / m ² (DRY) of a coating composition was applied as the coating composition constituting the ink receiving layer 14 at the following mixing ratio. 14
Was formed. 100 parts by weight of synthetic silica as a filler as a filler, 45 parts by weight of polyvinyl alcohol as a binder, 30 parts by weight of a liquid dicyandiamide-type cation resin as an ink fixing agent, 10 parts by weight of a urea / glyoxal / acrylamide polymer as a water-proofing agent; and 1 part by weight of a polyacrylate powdered hexametaphosphate as a dispersant. 1 part by weight on the ink receiving layer 14. In addition, the following gloss layer material 16
a, and adhere the film 18 onto the gloss layer material 16a. Colloidal silica 100 parts by weight Polyvinyl alcohol 3.3 parts by weight Coating amount 7 g / m ² ( DRY) Then, as a film 18 having a smooth surface, a polyester film is adhered, and then a gloss layer material 16a is dried to form a gloss layer 16 to form the gloss layer 16, and then the film 18 is peeled off. In this way, when the ink is applied, fine holes are opened in the gloss layer 16, and when the inkjet ink is caused to fly by an inkjet printer or the like, the inkjet ink permeates from the gloss layer 16 into the ink receiving layer 14. was gotten.

(Example 2) The ink receiving layer 14 was formed in the same manner as in Example 1. Then, the following gloss layer material 16a is applied on the ink receiving layer 14, and the film 18 is adhered to the gloss layer material 16a. Colloidal silica 100 parts by weight Polyvinyl alcohol 16.7 parts by weight Urea / glyoxal / acrylamide polymer 8.3 parts by weight Coating amount 6 g / m ² ( DRY) Then, as a film 18 having a smooth surface, a polyester film is adhered, and then a gloss layer material 16a is dried to form a gloss layer 16 to form the gloss layer 16, and then the film 18 is peeled off. In this way, when the ink is applied, fine holes are opened in the gloss layer 16, and when the inkjet ink is caused to fly by an inkjet printer or the like, the inkjet ink permeates from the gloss layer 16 into the ink receiving layer 14. was gotten.

Example 3 The ink receiving layer 14 was formed in the same manner as in Example 1. Then, the following gloss layer material 16a is applied on the ink receiving layer 14, and the film 18 is adhered to the gloss layer material 16a. 100 parts by weight of colloidal silica 3.3 parts by weight of polyvinyl alcohol 0.7 part by weight of urea / glyoxal / acrylamide polymer Coating amount 7 g / m ² ( DRY) Then, as a film 18 having a smooth surface, a polyester film is adhered, and then a gloss layer material 16a is dried to form a gloss layer 16 to form the gloss layer 16, and then the film 18 is peeled off. In this way, when the ink is applied, fine holes are opened in the gloss layer 16, and when the inkjet ink is caused to fly by an inkjet printer or the like, the inkjet ink permeates from the gloss layer 16 into the ink receiving layer 14. was gotten.

Example 4 The ink receiving layer 14 was formed in the same manner as in Example 1. Then, the following gloss layer material 16a is applied on the ink receiving layer 14, and the film 18 is adhered to the gloss layer material 16a. Colloidal silica 100 parts by weight Acrylic emulsion resin 10 parts by weight Ammonium zirconium carbonate 0.6 part by weight Coating amount 7 g / m ² ( DRY) Then, as a film 18 having a smooth surface, a polyester film is adhered, and then a gloss layer material 16a is dried to form a gloss layer 16 to form the gloss layer 16, and then the film 18 is peeled off. In this way, when the ink is applied, fine holes are opened in the gloss layer 16, and when the inkjet ink is caused to fly by an inkjet printer or the like, the inkjet ink permeates from the gloss layer 16 into the ink receiving layer 14. was gotten.

(Example 5) The ink receiving layer 14 was formed in the same manner as in Example 1. Then, the following gloss layer material 16a is applied on the ink receiving layer 14, and the film 18 is adhered to the gloss layer material 16a. Colloidal zirconia 100 parts by weight Polyvinyl alcohol 5 parts by weight Coating amount 7 g / m ² ( DRY) Then, as a film 18 having a smooth surface, a polyester film is adhered, and then a gloss layer material 16a is dried to form a gloss layer 16 to form the gloss layer 16, and then the film 18 is peeled off. In this way, when the ink is applied, fine holes are opened in the gloss layer 16, and when the inkjet ink is caused to fly by an inkjet printer or the like, the inkjet ink permeates from the gloss layer 16 into the ink receiving layer 14. was gotten.

The recording paper according to the present invention is not limited to use as an ink jet recording medium, but can be used for any recording medium that uses a liquid ink during recording. As such a recording medium, for example, a hot-melt room-temperature solid ink mainly composed of a wax, a resin component, a dye, a pigment, and the like is melted on a thin support such as a resin film, high-density paper, or synthetic paper. The coated ink sheet is used as a donor sheet, and a hot-melt transfer recording medium for heating and melting and transferring the ink from the back side of the ink of the donor sheet is used. Recording medium for ink-jet recording and flight recording, ink-jet recording medium using an ink in which an oil-soluble dye is dissolved in a solvent, photosensitive pressure-sensitive type using microcapsules containing photopolymerizable monomers, colorless or colored dyes and / or pigments An image receiving recording medium of a donor sheet may be used. What is common on these recording media is that the ink is in a liquid state during recording. The liquid ink permeates or spreads in the depth direction or the surface direction of the ink receiving layer of the recording medium until it is cured, solidified or fixed. For this reason, the recording medium also needs to have absorptivity according to each method. Therefore, the recording paper according to the present invention can be used as the various recording media described above.

[0038]

According to the present invention, when a glossy layer is formed, a film having a smooth surface is brought into close contact with the surface of the material, and the film is peeled off after the glossy layer is formed. To obtain beautiful glossy paper.

[Brief description of the drawings]

FIG. 1 is an illustrative sectional view of a glossy paper for ink jet recording according to a first embodiment of the present invention.

FIG. 2 is a schematic sectional view showing a step of attaching a film on a material of a gloss layer in order to produce the glossy paper for liquid ink recording shown in FIG.

FIG. 3 is a schematic sectional view showing a step of laminating a gloss layer formed on a film on a material of an intermediate layer in order to manufacture the glossy paper for liquid ink recording shown in FIG.

[Explanation of symbols]

 Reference Signs List 10 Glossy paper for liquid ink recording 12 Base material 14 Ink receiving layer 16 Glossy layer 16a Glossy layer material 18 Film

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2C056 FC06 2H086 BA14 BA15 BA33 BA35 4D075 AC43 AE03 CA35 CB04 DB18 DC27 EA02 EA13 EB19 EC03 EC17

Claims (10)

[Claims] 1. A method for producing a glossy paper for liquid ink recording, comprising: a substrate; an intermediate layer formed on one main surface thereof; and a gloss layer formed on the surface of the intermediate layer, wherein the gloss is A film having a smooth surface is adhered to the surface of the material of the layer, and the film is peeled off after forming the material of the gloss layer, and the intermediate layer is a liquid ink between the gloss layer and the base material. A method for producing a glossy paper for liquid ink recording formed to be accepted. 2. The method according to claim 1, wherein the material of the glossy layer is applied on the intermediate layer, and a smooth surface of the film is adhered to the material of the glossy layer to form the glossy layer. The method for producing a glossy paper for liquid ink recording according to claim 1, wherein the glossy paper is separated from the glossy paper. 3. A method for applying the material for the gloss layer to a smooth surface of the film, and laminating the application surface of the material for the gloss layer on the substrate to form the gloss layer. The method for producing a glossy paper for liquid ink recording according to claim 1, wherein the glossy paper is separated from the glossy layer. 4. The method for producing a glossy paper for liquid ink recording according to claim 1, wherein the glossy layer is provided with a coating containing a colloidal silica composite emulsion. 5. The liquid according to claim 1, wherein the glossy layer is formed by applying a material obtained by mixing a water-soluble resin or an emulsion resin with a low water-absorbing filler such as colloidal silica. A method for producing glossy paper for ink recording. 6. The intermediate layer comprises an ink receiving layer for receiving the liquid ink, and is formed such that the liquid ink permeates the intermediate layer through the fine holes formed in the glossy layer. The method for producing a glossy paper for liquid ink recording according to any one of the above. 7. The liquid ink according to claim 1, wherein the intermediate layer includes an ink fixing agent and a pigment that absorbs a dye or the like of the ink, and is formed so that the liquid ink is adsorbed. Manufacturing method of glossy paper for recording. 8. The method for producing a glossy paper for liquid ink recording according to claim 7, wherein the intermediate layer is formed by applying a mixture of a pigment containing synthetic silica on a substrate. 9. A glossy paper for liquid ink recording, wherein a glossy layer is formed by the method according to claim 1. Description: 10. A glossy paper for liquid ink recording, wherein an intermediate layer is formed by the method according to claim 6. Description: