JP2001353959A - Liquid ink recording glossy sheet and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid ink recording glossy sheet, which has gloss and is excellent in water resistance, and its manufacturing method. SOLUTION: This manufacturing method of the liquid ink recording glossy sheet is one that is applied for manufacturing the liquid ink recording glossy sheet including a base material 12, an intermediate layer 14 formed on one principal side of the base material 12 and a glossy layer 16 formed on the surface of the intermediate layer 14. The glossy layer 16 is formed by coating and printing with material including a resin having lustrous properties and water resistance. The intermediate layer 14 is formed so as to receive a liquid ink between the glossy layer 16 and the base material 12. The liquid ink recording glossy sheet 10 includes the base material 12, the intermediate layer 14 formed on one principal side of the base material and the glossy layer 16 formed on the surface of the intermediate layer 14. The intermediate layer 14 is formed so as to receive the glossy layer 16 and the base material 12. The glossy layer 16 is formed by coating and printing with the material having lustrous properties and water resistance.

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, a recording medium having a higher surface gloss is conventionally preferred by consumers, and an inkjet recording medium having a gloss finish has been proposed. An excellent ink jet recording medium is desired.

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

[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 glossy layer is formed by applying and printing a material containing a resin having glossiness and water resistance, and the intermediate layer is formed of a liquid ink. This is a method for producing a glossy paper for liquid ink recording formed so as to be received between a glossy layer and a substrate. A method for producing a glossy paper for liquid ink recording according to claim 2 of the present invention, comprising a base material, an intermediate layer formed on one main surface thereof, and a glossy layer formed on the surface of the intermediate layer. A method for producing a glossy paper for recording, which comprises applying and printing a material containing a resin having glossiness and water resistance of a glossy layer, adhering a film having a smooth surface to the surface, and forming a material for the glossy layer. The method for producing a glossy paper for liquid ink recording according to claim 1, wherein the film is peeled off after forming the film, and the intermediate layer is formed so that the liquid ink is received between the glossy layer and the substrate. It is. According to a third 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. A method of manufacturing a glossy paper for liquid ink recording according to claim 4 of the present invention, wherein the liquid ink includes a base material, an intermediate layer formed on one main surface thereof, and a gloss layer formed on the surface of the intermediate layer. A method for producing a glossy recording paper, in which a material containing a glossy and water-resistant resin for forming a glossy layer is applied and printed on a film having a smooth surface, and the surface of the intermediate layer is opposite to the film. The film surface was peeled off after the material surface of the gloss layer was brought into close contact, and the material of the gloss layer was formed into a film, and the intermediate layer was formed such that the liquid ink was received between the gloss layer and the substrate. And a method for producing glossy paper for liquid ink recording. According to a fifth 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 on 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. In the method for producing glossy paper for liquid ink recording according to claim 6 of the present invention, the glossy layer is formed by coating a material containing a water-soluble polyester resin. A method for producing the glossy paper for liquid ink recording described above. In the method for producing a glossy paper for liquid ink recording according to a seventh aspect of the present invention, the glossy layer is formed by applying a material obtained by mixing a filler such as colloidal silica and a water-soluble polyester resin. A method for producing a glossy paper for liquid ink recording according to claim 6. In the method for producing glossy paper for liquid ink recording according to claim 8 of the present invention, the material of the glossy layer is formed by applying a material containing polyvinyl alcohol and a waterproofing agent for polyvinyl alcohol. 7. The method for producing a glossy paper for liquid ink recording according to any one of 7. In the method for producing glossy paper for liquid ink recording according to claim 9 of the present invention, the intermediate layer constitutes an ink receiving layer for receiving the liquid ink, and the liquid ink is applied 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 8, wherein the glossy paper is formed so as to penetrate. In the method for producing a glossy paper for liquid ink recording according to claim 10 of the present invention, 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 as to adsorb the liquid ink. A method for producing a glossy paper for liquid ink recording according to any one of claims 1 to 9. The method for producing a glossy paper for liquid ink recording according to claim 11 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 claim 12 of the present invention, comprising a base material, an intermediate layer formed on one main surface thereof, and a glossy layer formed on the surface of the intermediate layer. Paper, the intermediate layer is formed such that the liquid ink is received between the glossy layer and the substrate, and the glossy layer is formed by applying and printing a material containing a resin having gloss and water resistance. This is a glossy paper for liquid ink recording. The glossy paper for liquid ink recording according to a thirteenth aspect of the present invention is the glossy paper for a liquid ink recording according to the twelfth aspect, wherein the glossy layer is provided with a coating containing a water-soluble polyester resin. The glossy paper for liquid ink recording according to claim 14 of the present invention, wherein the glossy layer is formed by applying a material obtained by mixing a filler such as colloidal silica and a water-soluble polyester resin. Gloss paper. The glossy paper for liquid ink recording according to claim 15 of the present invention, wherein the glossy layer is formed by applying a material containing polyvinyl alcohol and a waterproofing agent for polyvinyl alcohol.
A glossy paper for liquid ink recording according to claim 12. A glossy paper for liquid ink recording according to claim 16 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 claims 1 to 8. A glossy paper for liquid ink recording according to a seventeenth aspect of the present invention is a glossy paper for liquid ink recording on which an intermediate layer is formed by the method according to any one of the ninth to eleventh aspects.

[0006]

According to the present invention, an intermediate layer is formed on one main surface of a substrate such as paper or film, and the surface of the intermediate layer is
Since a gloss layer is formed by applying and printing a material containing a resin having gloss and water resistance, the liquid ink is formed so as to be received by the intermediate layer between the gloss layer and the base material,
The liquid ink is received and recorded in an intermediate layer between the glossy layer and the substrate, having excellent surface gloss and water resistance. In particular, according to the inventions of claims 6 and 7, a glossy paper for liquid ink recording having a high gloss surface can be obtained, but a gloss layer having excellent water resistance can be obtained. In particular, according to the ninth aspect of the present invention, since the intermediate layer is formed of an ink receiving layer for receiving the liquid ink, a glossy liquid ink recording paper having a high gloss surface can be obtained. More liquid ink permeates the intermediate layer and is held. In particular, according to the tenth aspect of the invention, 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 eleventh aspect of the present invention, 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 filler, solid or powdered amorphous silica (silicon dioxide SiO ₂ ) which is a porous material
100 parts by weight, 45 parts by weight of polyvinyl alcohol as a binder, and 25 parts by weight of a liquid polyamine derivative as an ink fixing agent.
5 parts by weight of acetal (formal) as a water-proofing agent and 1 part by weight of hexametaphosphoric acid as a dispersant are mixed together as a water-proofing agent.
4 was formed.

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 is composed of a water-soluble polyester resin and a filler, and may further contain another resin. If necessary, other resin waterproofing agents, defoaming agents, wetting agents, dispersants and the like may be added. As the filler, those similar to those used in the ink receiving layer 14 can be used, but colloidal silica is particularly preferable.

The gloss layer 16 is composed of a colloidal silica having a low water absorption or a water-soluble polyester resin with respect to 100 parts by weight of colloidal zirconia as a filler.
A solvent such as ethyl cellosolp or tertiary butyl cellosolp and water is used in an amount of 0.001 to 100 parts by weight. When the amount of the water-soluble resin is 0.001 or less, the coating strength of the gloss layer is hardly obtained and the coating property is poor. Does not reach the ink receiving layer through the layer.

The polyester resin is a synthetic polymer formed by an ester bond by a polycondensation reaction between a dicarboxylic acid component and a diol component. Examples of the dicarboxylic acid component forming the polyester resin include aromatic dicarboxylic acids such as terephthalic acid, isophthalic acid, and phthalic acid; aliphatic dicarboxylic acids such as adipic acid, succinic acid, sebacic acid, and dodecane diacid; and diol components. A resin is formed by using ethylene glycol, propylene glycol, 1.4 butanediol, 1.8 hexanediol, neoventil glycol, and the like, and further, cyclohexanedimethanol, bisphenol, and the like as components. Various polyester resins are synthesized by combining these raw materials. In order to make such a polyester resin water-soluble, it is possible to synthesize a water-soluble polyester resin by copolycondensing a hydrophilic group. Examples of the hydrophilic component include those having a sulfone group, such as sodium 5-sulfoisophthalate, and polyethylene glycol. The water-soluble polyester resin is a saturated copolymerized polyester resin containing terephthalic acid as a main component.

The glossy paper 10 is formed so that the surface of the glossy layer 16 is smooth, thereby providing 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 base material 12, and a film is formed on the glossy layer material 16a 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 pressing the film 18 against the applied glossy layer material 16a and bringing it into close contact therewith, the glossy layer material 16a is dried into a film to form the glossy layer 16, and then the film 1
8 is peeled off. In FIG. 2, the glossy layer material 16a indicated by diagonal lines is in an undried state. Since the film 18 has a smooth surface, the film 1
The surface of the glossy layer 16 from which 8 has been removed becomes smooth, and a beautiful glossy paper 10 can be obtained. Therefore, in the process of producing glossy paper, no ultraviolet irradiation device is required,
The production of glossy paper can be simplified.

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 oil-based. 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, and 14
Was formed. 100 parts by weight of synthetic silica as a filler, 45 parts by weight of polyvinyl alcohol as a binder, 25 parts by weight of a liquid polyamine derivative as an ink fixing agent, 25 parts by weight, and water resistance. 5 parts by weight of a water-proofing agent of polyvinyl alcohol as an agent, the ink receiving layer 14 is coated and dried, and then a gloss layer material 16a described below is coated thereon, and a gloss layer material 16a
The film 18 is adhered to the top. 85 parts by weight of colloidal silica 15 parts by weight of water-soluble polyester resin Coating amount 7 g / m ² (DRY) Then, as a film 18 having a smooth surface, a polyester film is adhered tightly, and then a gloss layer material 16 a is dried to form a film. Then, a gloss layer 16 is formed, 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 ink receiving layer 14 is coated and dried, and a material 16a for the following gloss layer is formed thereon.
Is applied, and the film 18 is adhered to the gloss layer material 16a. Colloidal silica 94.5 parts by weight Water-soluble polyester resin 10 parts by weight Polyvinyl alcohol 5 parts by weight Waterproofing agent for polyvinyl alcohol 0.5 parts by weight Coating amount 6 g / m ² (DRY) And as film 18 having a smooth surface After the polyester film is adhered, the gloss layer material 16a is dried and formed into a film 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 ink receiving layer 14 is coated and dried, and a material 16a for the following gloss layer is formed thereon.
Is applied, and the film 18 is adhered to the gloss layer material 16a. 67 parts by weight of colloidal silica 8 parts by weight of water-soluble polyester resin 25 parts by weight of colloidal silica composite emulsion Coating amount 7 g / m ² (DRY) Then, as a film 18 having a smooth surface, a polyester film is adhered and a gloss layer is formed. The material 16a is dried and formed into a film to form a 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.

(Comparative Example) The ink receiving layer 14 is the same as that of the first embodiment.
It was formed in the same manner as above. Then, the ink receiving layer 14 is coated and dried, and the following gloss layer material 16a is applied thereon, and the film 18 is adhered onto the gloss layer material 16a. Colloidal silica 95 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 closely adhered, and a gloss layer material 16 a is dried to form a gloss. The layer 16 is formed, and then the film 18 is peeled off.

When the ink surface of the glossy paper thus completed (Examples 1, 2 and 3 and Comparative Example) printed with an ink jet printer or the like was rubbed with a cotton swab impregnated with water, water-soluble polyester was used. In the glossy papers of Examples 1, 2 and 3 using the resin, glossy paper having less water adherence to the cotton swab and excellent in water resistance was obtained as compared with the glossy paper of the comparative example using PVA.

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.

[0039]

According to the present invention, when a gloss layer is formed, a film having a smooth surface is brought into close contact with the surface of the material when the gloss layer is formed, and the film is formed after the gloss layer is formed. By peeling, smooth and beautiful glossy paper can be obtained.

[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 Continuing on the front page (72) Inventor, Tsukasa Nakamura 1-25, Kobashi-cho, Tennoji-ku, Osaka F-term in Osaka Seal Printing Co., Ltd. (reference) 2C056 EA13 FC06 2H086 BA02 BA13 BA15 BA32 BA33 BA35 4L055 AG18 AG64 AG78 AG81 AG82 AG94 AH02 AH37 AH50 AJ01 AJ04 BE07 BE09 FA12 GA09

Claims (17)

[Claims] 1. A method for producing glossy paper for liquid ink recording, comprising: a base material; an intermediate layer formed on one main surface thereof; and a glossy layer formed on the surface of the intermediate layer. And a material containing a resin having water resistance is applied and printed to form a gloss layer, and the intermediate layer is formed so that the liquid ink is received between the gloss layer and the base material. A method for producing glossy paper. 2. A method for producing a glossy paper for liquid ink recording, comprising a base material, an intermediate layer formed on one main surface thereof, and a glossy layer formed on the surface of the intermediate layer, After applying and printing a material containing a resin having glossiness and water resistance of the layer, a film having a smooth surface is adhered to the surface thereof, and the film is peeled after forming the material of the glossy layer, The method for producing glossy paper for liquid ink recording according to claim 1, wherein the intermediate layer is formed such that the liquid ink is received between the glossy layer and the base material. 3. The method according to claim 1, wherein the material of the gloss layer is applied on the intermediate layer, and a smooth surface of the film is adhered to the material of the gloss layer 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 paper. 4. 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 material containing a resin having gloss and water resistance forming a layer is applied and printed on a film having a smooth surface, and the surface of the material of the gloss layer on the side opposite to the film is brought into close contact with the surface of the intermediate layer. The method for producing a glossy paper for liquid ink recording, wherein the film is peeled off after forming the layer material, and the intermediate layer is formed so that the liquid ink is received between the glossy layer and the substrate. . 5. A method for applying the material for the glossy layer to a smooth surface of the film, and laminating the application surface of the material for the glossy layer on the base material 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 layer. 6. The glossy layer is formed by coating a material containing a water-soluble polyester resin.
The method for producing a glossy paper for liquid ink recording according to any one of the above. 7. The gloss for liquid ink recording according to claim 1, wherein the material of the gloss layer is formed by applying a material obtained by mixing a filler such as colloidal silica and a water-soluble polyester resin. Paper manufacturing method. 8. The glossy paper for liquid ink recording according to claim 1, wherein the material of the glossy layer is formed by applying a material containing polyvinyl alcohol and a waterproofing agent for polyvinyl alcohol. Production method. 9. The intermediate layer comprises an ink receiving layer for receiving 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. 10. 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 as to adsorb the liquid ink. Manufacturing method of glossy paper for recording. 11. The method for producing a glossy paper for liquid ink recording according to claim 10, wherein the intermediate layer is formed by coating a mixture of a pigment containing synthetic silica on a substrate. 12. A glossy paper for liquid ink recording comprising a base material, an intermediate layer formed on one main surface thereof, and a glossy layer formed on the surface of the intermediate layer, wherein the intermediate layer is formed of a liquid A glossy paper for liquid ink recording, wherein the glossy layer is formed so that ink is received between a glossy layer and a substrate, and the glossy layer is formed by applying and printing a material containing a resin having glossiness and water resistance. 13. The glossy paper for liquid ink recording according to claim 12, wherein the glossy layer is coated with a material containing a water-soluble polyester resin. 14. The glossy paper for liquid ink recording according to claim 12, wherein the glossy layer is formed by applying a material obtained by mixing a filler such as colloidal silica and a water-soluble polyester resin. 15. The glossy paper for liquid ink recording according to claim 12, wherein the glossy layer is formed by applying a material containing polyvinyl alcohol and a waterproofing agent for polyvinyl alcohol. 16. A glossy paper for liquid ink recording, wherein a glossy layer is formed by the method according to claim 1. Description: 17. A glossy paper for liquid ink recording, wherein an intermediate layer is formed by the method according to claim 9. Description: