JP4338887B2 - Glossy paper for recording liquid ink and method for producing the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid ink recording medium on which, for example, ink jet ink is printed by an ink jet printer, and particularly to a glossy paper for liquid ink recording having gloss and a method for producing the same.
[0002]
[Prior art]
Inkjet recording is a method in which fine droplets of ink are ejected from a minute nozzle and fixed on a recording sheet such as paper to record images, characters, etc., but there are many operating principles. Because it has features such as high speed, low noise, easy multi-coloring, great flexibility in recording patterns, and no need for development and fixing, it is used in various applications as a recording system for various graphics and color images. ing.
[0003]
[Problems to be solved by the invention]
The recording medium used in this ink jet recording method has a high density of printed dots, fast absorption of ink jet ink, and ink flows out or bleeds even when dots are overlapped when printed. It is desired that the dots do not spread more than necessary and are not blurred when printed. On the other hand, since a recording medium having a higher glossiness than the conventional one has been preferred by consumers, an inkjet recording medium with a glossy finish has been proposed. Accordingly, an ink jet recording medium having a high ink absorption speed is desired.
[0004]
SUMMARY OF THE INVENTION Therefore, a main object of the present invention is to provide a glossy paper for liquid ink recording having gloss and a high ink absorption rate, and a method for producing the same.
[0005]
[Means for Solving the Problems]
  According to a first aspect of the present invention, there is provided a method for producing a glossy paper for recording liquid ink, 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 glossy paper for recording, comprising: forming an intermediate layer having a gap so that liquid ink is received between the glossy layer and the substrate; and a material for the glossy layer from the surface of the intermediate layer. Applying a filler material on the intermediate layer that evaporates when the intermediate layer voids are filled and dried so as not to enter the intermediate layer voids;Applying the gloss layer material on the intermediate layer coated with the filler material without drying the filler material, and pressing the film against the surface of the gloss layer material applied before the gloss layer material dries Steps,Dry the material of the gloss layer and at the same time apply the applied filling materialDryLet the glossy layerFilm formationSteps to do, The step of peeling the filmA method for producing glossy paper for liquid ink recording in which a material for the glossy layer is prevented from penetrating into the intermediate layer..
  Claims of the invention2In the method for producing a glossy paper for recording liquid ink according to claim 1, the filling material contains volatile alcohol, water, or an aqueous copper sulfate solution.1A method for producing glossy paper for recording liquid ink, wherein the glossy layer material described in 1) is not soaked into the intermediate layer..
  Claims of the invention3The method for producing glossy paper for recording liquid ink according to claim 1, wherein the intermediate layer includes an ink fixing agent and a pigment that absorbs ink dye and the like, and is formed so as to adsorb liquid ink.2A method for producing glossy paper for liquid ink recording, wherein the glossy layer material described in any of the above is prevented from penetrating into the intermediate layer.
  Claims of the invention4The method for producing a glossy paper for recording liquid ink according to claim 1, wherein the intermediate layer is formed by coating a substrate with a pigment mixed with synthetic silica.3A glossy paper for liquid ink recording, which prevents the glossy layer material described in the above from penetrating into the intermediate layer.
  Claims of the invention5The glossy paper for recording liquid ink according to claim 1 is claimed.4A glossy paper for liquid ink recording produced by the method described in any one of the above, wherein the glossy layer material does not penetrate into the intermediate layer.
[0006]
[Action]
  According to the present invention, there is provided a method for producing glossy paper for liquid ink recording, comprising an intermediate layer formed on one main surface of a substrate such as paper or film, and a glossy layer formed on the surface of the intermediate layer. The intermediate layer is formed with a void so that the liquid ink is received between the gloss layer and the substrate, and the gloss layer material does not enter the void of the intermediate layer from the surface of the intermediate layer. Evaporates when filling and dryingContains ingredientsApply filling material,Press the film against the surface of the glossy layer material applied before the glossy layer material driesDry the gloss layer material and at the same time apply the applied filling materialDryLet glossy layerMake a film and peel off the film.Therefore, fill the gap in the intermediate layer with water or other filling material so that the glossy layer material does not penetrate, and at the same time the glossy layer appears, the filling material evaporates and the gap in the intermediate layer is maintained. The Therefore, the volume of ink received can be increased to increase the ink absorption speed, and the surface gloss is excellent. Liquid ink is received and recorded in the intermediate layer between the glossy layer and the substrate. . As a result, a glossy paper for recording liquid ink having a highly glossy surface can be obtained, but the ink absorption speed is fast. In particular, the claims3According to the invention, the intermediate layer includes the ink fixing agent and the pigment that absorbs the ink dye and the like, and is formed so that the liquid ink is adsorbed. Claims4According to the invention, since the intermediate layer is formed by coating the base material with a mixture containing a pigment containing synthetic silica, the intermediate layer is formed to adsorb liquid ink.
[0007]
The above object, 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]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a cross-sectional view of a liquid ink recording glossy paper according to a first embodiment of the present invention.
The liquid ink recording glossy paper 10 is an ink receiving medium serving as an intermediate layer for receiving an oil-based or water-based inkjet ink on one main surface (surface) of a base material 12 which is a support material made of high-quality paper or a synthetic resin film / sheet. A layer 14 is formed, and a gloss layer 16 located on the outermost surface is formed on the main surface (surface) opposite to the main surface on the substrate 12 side of the ink receiving layer 14.
[0009]
The ink receiving layer 14 is composed of a coating composition such as an inorganic pigment and / or an organic pigment and an ink fixing agent, a binder, other pigment dispersants, a water resistance agent, and the like. At least one layer is provided between the gloss layer 16 and the gloss layer 16.
[0010]
Examples of the pigment forming the ink receiving layer 14 include silica, colloidal silica, calcium carbonate, and aluminum oxide.
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, lithopone, zeolite Inorganic pigments such as hydrated halloysite and magnesium hydroxide: organic pigments such as styrene plastic pigment, acrylic plastic pigment, polyethylene, microcapsule, urea resin, melamine resin, and the like.
[0011]
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.
[0012]
Examples of the binder that forms the ink receiving layer 14 include PVA such as silicon-modified polyvinyl alcohol, starch, SBR latex, acrylic resin, and urethane resin.
More specifically, examples of the binder include starch derivatives such as oxidized starch, etherified starch, and phosphate esterified starch; cellulose derivatives such as carboxymethyl cellulose and hydroxyethyl cellulose; casein, gelatin, soybean protein, polyvinyl alcohol or Derivatives; polyvinyl alcohol of various degrees of oxidation or various derivatives thereof such as silanol modified products, carboxylated products, cationized products, etc .; conjugates of polyvinyl pyrrolidone, maleic anhydride resin, styrene-butadiene copolymer, methyl methacrylate-butadiene copolymer, etc. Diene copolymer latex; acrylic polymer latex such as acrylic acid ester and methacrylic acid ester polymer or copolymer; vinyl polymer latex such as ethylene vinyl acetate copolymer; Or functional group-modified polymer latex with functional group-containing monomers such as carboxy groups of these various polymers; aqueous adhesives such as thermosetting synthetic resins such as melamine resins and urea resins; acrylics such as polymethyl methacrylate; Examples include acid esters; methacrylic acid ester polymers or copolymer resins; polyurethane resins, unsaturated polyester resins, vinyl chloride-vinyl acetate copolymers, polyvinyl butyral, alkyd resins, and the like.
[0013]
In addition, a water-resistant agent such as a melamine resin may be included as necessary as a coating composition for the ink receiving layer 14.
Further, the ink receiving layer 14 may be blended with other materials for various purposes. For example, pigment dispersants, thickeners, fluidity improvers, antifoaming agents, antifoaming agents, mold release agents, foaming agents, penetrating agents, colored dyes, colored pigments, fluorescent whitening agents, UV absorbers, antioxidants Various additives such as agents, preservatives, antibacterial agents, wet paper strength enhancers, and dry paper strength enhancers can be appropriately blended depending on the purpose. In particular, from secondary amines, tertiary amines, and quaternary ammonium salts that form insoluble salts with sulfonic acid groups, carboxyl groups, amino groups, and the like in water-soluble direct dyes and water-soluble acidic dyes that are dye components of water-based inks. When the cationic dye fixing agent is added, the dye is captured in the ink receiving layer 14. Therefore, when the color is improved and an insoluble salt is formed, the ink can be prevented from flowing out or bleeding when water is dripped or absorbed.
[0014]
The blending ratio of the pigment and the binder in the coating composition constituting the ink receiving layer 14 is 3 to 70 parts by weight of the binder with respect to 100 parts by weight of the pigment.
Preferably, it is 5 to 50 parts by weight, but 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, when the blending ratio of the binder exceeds 70 parts by weight, the ink absorbability of the ink receiving layer 14 may be lowered.
[0015]
For example, the blending ratio of the pigment and the binder in the coating composition constituting the ink receiving layer 14 is as follows.
As a pigment, solid or powdered amorphous silica (silicon dioxide SiO2) which is a porous material₂) By weight, 100 parts by weight,
As a binder, 45 parts by weight of polyvinyl alcohol by weight,
As an ink fixing agent, 30 parts by weight of a liquid polyamine derivative by weight,
As a water resistant agent, 10 parts by weight of acetal (formal) by weight,
1 part by weight of powdered hexametaphosphoric acid as a dispersant
Were mixed to form the ink receiving layer 14.
[0016]
The coating amount of the ink receiving layer 14 varies depending on the required gloss, ink absorbability, type of support, etc., but cannot be generally stated, but is usually 1 g / m.²Or more, preferably 5 to 15 g / m²It is. Further, the ink receiving layer 14 may be provided by dividing a certain coating amount into two portions.
[0017]
Coating of the ink receiving layer 14 can be performed using various coating apparatuses on-machine or off-machine. Examples of the coating device include various flade coaters, roll coaters, air knife coaters, bar coaters, rod blade coaters, curtain coaters, short dwell coaters, and size presses.
Further, in order to make the ink receiving layer 14 smooth, after the ink receiving layer is coated, a flattening finish may be performed using a calendar device such as a machine calendar, a TG calendar, or a soft calendar.
In addition, the number of layers of the ink receiving layer 14 can be appropriately determined as necessary.
[0018]
  After forming the ink receiving layer 14 for the liquid ink to be received between the glossy layer and the substrate, the material of the glossy layer 16 does not soak into the voids of the ink receiving layer 14 from the surface of the ink receiving layer 14. In addition, a filling material that evaporates when the gap of the ink receiving layer 14 is filled and dried by heating in a wet state is applied. The material of the gloss layer 16 is applied in a wet state without drying the filling material, and a film having a smooth surface is pressed against the surface to apply the coated filling material and the coated gloss layer. After heating and drying the material to form a film, the film is peeled offYouThe Filling materials include volatile alcohol, water, copper sulfate aqueous solution, etc.TheIncluding. Also filling materialInMay be mixed with a gelling agent, a thickener, a curing agent, a wetting agent, and an antifoaming agent. Examples of the thickener include the following. Polyacrylic acid, acrylate copolymer, polyacrylic acid soda, polyacrylic acid copolymer, ammonium polyacrylate, polyvalent carboxylic acid acrylic polymer, special cationic copolymer, sodium acrylate copolymer , Sulfonic acid copolymer, polyacrylamide, methacrylate ester copolymer, sodium alginate, propylene glycol alginate, sodium caseinate, sodium carboxymethylcellulose, sodium fibrin glycolate, sodium starch glycolate, methylcellulose, gum arabic, alginic acid Natural gums such as casein, guar gum, gluten, starch, locust bean gum, and other highly water-soluble resins such as PVA.
[0019]
The gloss layer 16 is made of a coating composition having transparency and made of a colloidal silica composite emulsion, and is coated on at least one layer on the substrate 12 and the ink receiving layer 14 as a support. It becomes. The colloidal silica composite emulsion is mainly composed of colloidal silica / acrylic / styrene, colloidal silica / acrylic, and silica / acrylic / styrene.
[0020]
Moreover, as the coating material 16a for forming the gloss layer 16, a material mainly composed of a colloidal silica composite emulsion and a material mainly composed of a mixture of a filler and a binder can be considered. As the filler in this case, the same pigment as the ink adsorbing pigment used in the ink receiving layer 14 described above can be used, but colloidal silica is preferred. Moreover, as a binder, the thing similar to the above-mentioned ink receiving layer 14 can be used, However, A water-soluble resin is preferable.
For example, as a filler, colloidal silica having a low water absorption or a material obtained by mixing a colloidal zirconia with a water-soluble resin such as polyvinyl alcohol or an emulsion resin may be coated, and water resistance should be appropriately given to polyvinyl alcohol or the like. For example, a water-resistant agent such as urea / glyoxal / acrylamide polymer may be mixed, or a curing agent may be mixed.
The water-soluble resin may be mixed in an amount of 0.001 to 100 parts by weight with respect to 100 parts by weight of colloidal silica, for example. However, when the water-soluble resin is 0.001 or less, the coating strength of the glossy layer is difficult to be obtained and the coating property is poor, but when it is 100 parts by weight or more, it is difficult to form micropores in the glossy layer and the ink is glossy. Does not pass through the layer to reach the ink receiving layer.
[0021]
In the glossy paper 10, the glossy layer 16 is formed so that the surface of the glossy layer 16 is smooth, whereby the glossy paper 10 for recording liquid ink is beautiful.
[0022]
In order to manufacture such a glossy paper 10 for recording liquid ink, a gloss layer material 16a is applied on the ink receiving layer 14 of the substrate 12, and the gloss layer material 16a is coated on the gloss layer material 16a as shown in FIG. The film 18 is adhered to the surface. As the film 18, a film having a smooth surface is used. Examples of such film 18 include polyethylene film, polypropylene film, polyamide (nylon) film, polyester film, polyethylene naphthalate film, polystyrene film, polvinyl alcohol (vinylon) film, polyether ketone film, polysulfone film, and 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 the above, or a paper and a film obtained by bonding these films together Etc. can be used. Further, in order to improve the releasability with the glossy layer 16, a material to which a release agent is applied may be used.
[0023]
After the film 18 is pressed and adhered to the coated gloss layer material 16a, the gloss layer material 16a is formed into a dry film to form the gloss layer 16, and then the film 18 is peeled off. In FIG. 2, the glossy layer material 16a indicated by hatching indicates that it is in an undried state. Since the film 18 has a smooth surface, the surface of the glossy layer 16 from which the film 18 has been peeled becomes smooth, and a beautiful glossy paper 10 can be obtained. Therefore, in the glossy paper manufacturing process, no ultraviolet irradiation device or the like is required, and the glossy paper can be easily manufactured.
[0024]
In order to form the gloss layer 16, a gloss layer material 16a may be applied to the surface of the film 18, as shown in FIG. In this case, before the gloss layer material 16 a is dried, the gloss layer material 16 a is pressed against the surface of the ink receiving layer 14. Then, after the gloss layer material 16 a is dried to form the gloss layer 16, the film 18 is peeled from the gloss layer 16. In this way, the gloss layer material 16a may be applied to the substrate 12 side, or may be applied to the film 18 side. After the gloss layer 16 is formed, the film 18 is peeled off, A glossy paper 10 having gloss can be obtained.
[0025]
According to the present invention, fine holes are formed in the glossy layer 16 when coated, and the ink jet ink penetrates into the ink receiving layer 14 from the glossy layer 16 when the ink jet ink is ejected by an ink jet printer or the like.
[0026]
The ink used for the glossy paper for ink jet recording according to the present invention may be aqueous or oily.
The water-based ink is a recording liquid composed of the following colorant, liquid medium, and other additives. Examples of the colorant include water-soluble dyes such as direct dyes, acid dyes, basic dyes, reactive dyes, and food dyes.
[0027]
For example, as a direct dye,
C. I. Direct Black
2, 4, 9, 11, 14, 17, 19, 22, 27, 32, 36, 38, 41, 48, 49, 51, 56, 62, 71, 74, 75, 77, 78, 80, 105, 106,107,108,112,113,117,132,146,154,194
C. I. Direct Yellow
1, 2, 4, 8, 11, 12, 24, 26, 27, 28, 33, 34, 39, 41, 42, 44, 48, 50, 51, 58, 72, 85, 86, 87, 88, 98, 100, 110
C. I. Direct Orange
1, 2, 4, 8, 9, 11, 13, 17, 20, 23, 24, 28, 31, 33, 37, 39, 44, 46, 47, 48, 51, 59, 62, 63, 73, 75, 77, 80, 81, 83, 84, 85, 90, 94, 99, 101, 108, 110, 145, 189, 197, 220, 224, 225, 226, 227, 230
C. I. Direct Red
1, 2, 4, 8, 9, 11, 13, 17, 20, 23, 24, 28, 31, 33, 37, 39, 44, 46, 47, 48, 51, 59, 62, 63, 73, 75, 77, 80, 81, 83, 84, 85, 90, 94, 99, 101, 108, 110, 145, 189, 197, 220, 224, 225, 226, 227, 230
C. I. Direct Blue
1, 2, 6, 8, 15, 22, 25, 34, 69, 70, 71, 72, 75, 76, 78, 80, 81, 82, 83, 86, 90, 98, 106, 108, 110, 120, 123, 158, 163, 165, 192, 193, 194, 195, 196, 199, 200, 201, 202, 203, 207, 218, 236, 237, 239, 246, 258
C. I. Direct Green
1, 6, 8, 28, 33, 37, 63, 64
C. I. Direct Brown
1A, 2, 6, 25, 27, 44, 58, 95, 100, 106, 112, 173, 194, 195, 209, 210, 211
Etc.
[0028]
As an acid dye,
C. I. Acid Black
1, 2, 7, 16, 17, 24, 26, 28, 31, 41, 48, 52, 58, 60, 94, 107, 109, 112, 118, 119, 121, 122, 131, 155, 156
C. I. Acid Orange
7, 8, 10, 33, 56, 64
C. I. Acid Red
1, 4, 6, 8, 13, 14, 15, 18, 19, 21, 26, 27, 30, 32, 34, 35, 37, 40, 42, 51, 52, 54, 57, 80, 82, 83, 85, 87, 88, 89, 92, 94, 97, 106, 108, 110, 115, 119, 129, 131, 133, 134, 135, 154, 155, 172, 176, 180, 184, 186 187, 249, 254, 256, 317, 318
C. I. Acid Violet
7, 11, 15, 34, 35, 41, 43, 49, 75
C. I. Acid Blue
1, 7, 9, 22, 23, 25, 27, 29, 40, 41, 43, 45, 49, 51, 53, 55, 56, 59, 62, 78, 80, 81, 83, 90, 92, 93, 102, 104, 111, 113, 117, 120, 124, 126, 145, 167, 171, 175, 183, 229, 234, 236
C. I. Acid Green
3, 12, 19, 27, 41, 9, 16, 20, 25
C. I. Acid Brown
4,14
Etc.
[0029]
As basic dye,
C. I. Basic Black
2,8
C. I. Basic Yellow
1, 2, 11, 12, 14, 21, 32, 36
C. I. Basic Orange
2,15,21,22
C. I. Basic Red
1, 2, 9, 12, 13, 37
C. I. Basic Violet
1, 3, 7, 10, 14
C. I. Basic Blue
1, 3, 5, 7, 9, 24, 25, 26, 28, 29
C. I. Basic Green
1, 4
C. I. Basic Brown
1,12
Etc.
[0030]
As reactive dyes,
C. I. Reactive Black
1,3,5,6,8,12,14
C. I. Reactive Yellow
1, 2, 3, 13, 14, 15, 17
C. I. Reactive Orange
2, 5, 7, 16, 20, 24
C. I. reactive red
6, 7, 11, 12, 15, 17, 21, 23, 24, 35, 36, 42, 63, 66
C. I. Reactive Violet
2, 4, 5, 8, 9
C. I. Reactive Blue
2, 5, 7, 12, 13, 14, 15, 17, 18, 19, 20, 21, 25, 27, 28, 37, 38, 40, 41
C. I. Reactive Green
5,7
C. I. Reactive Brown
1,7,16
Etc.
[0031]
Furthermore, as food coloring,
C. I. Food Black
2
C. I. Food Yellow
3,4,5
C. I. Food Red
2, 3, 7, 9, 14, 52, 87, 92, 94, 102, 104, 105, 106
C. I. Food Violet
2
C. I. Food Blue
1, 2
C. I. Food Green
2, 3
Etc.
[0032]
Examples of the liquid medium for the water-based ink include water and various water-soluble organic solvents such as methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, sec-butyl alcohol, tert-butyl alcohol, C1-C4 alkyl alcohols such as isoptyl alcohol; Amides such as dimethylformamide and dimethylacetamide; Ketones or ketone alcohols such as acetone and diacetoalcohol; Ethers such as tetrahydrofuran and dioxane; Polyethylene glycol and polypropylene Polyalkylene glycols such as glycol; ethylene glycol, propylene glycol, butylene glycol, triethylene glycol, 1,2,6-hexanetriol, thiodiglygly Alkylene glycols having 2 to 6 alkylene groups such as glycerol, hexylene glycol and diethylene glycol; lower alkyls of polyhydric alcohols such as glycerin, ethylene glycol methyl ether, diethylene glycol methyl (or ethyl) ether and triethylene glycol monomethyl ether And ethers.
Of 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.
Examples of other additives include pH adjusters, metal sequestering agents, fungicides, viscosity modifiers, surface tension adjusters, wetting agents, surfactants, and rust inhibitors.
[0033]
Example 1
The coating composition constituting the ink receiving layer 14 was 9.5 g / m in the following composition ratio.²(DRY) was applied to form the ink receiving layer 14.
・ As filler
100 parts by weight of synthetic silica by weight,
・ As a binder
40 parts by weight of polyvinyl alcohol by weight,
・ As an ink fixing agent
25 parts by weight of a liquid polyamine derivative by weight,
・ As a waterproofing agent,
5 parts by weight of urea glyoxal / acrylamide polymer by weight,
On the ink receiving layer 14, water was applied as a filling material that evaporates when the ink receiving layer 14 is filled and heated in a wet state.
When the filling material coated on the ink receiving layer 14 is in a wet state without being dried, the following gloss layer material 16a is applied, and the film 18 is adhered to the gloss layer material 16a. .
・ 100 parts by weight of colloidal silica
・ Polyvinyl alcohol 10 parts by weight
・ Coating amount 7g / m²(DRY)
Then, after the polyester film is adhered as the film 18 having a smooth surface, the gloss layer material 16a is formed into a dry film to form the gloss layer 16, and then the film 18 is peeled off.
In this way, fine holes were opened in the glossy layer 16 when coated, and when ink jet ink was ejected by an ink jet printer or the like, it was possible to print beautifully.
[0034]
(Example 2)
The ink receiving layer 14 was formed in the same manner as in Example 1.
On the ink receiving layer 14, a 0.5% copper sulfate aqueous solution was applied as a filling material that evaporates when the voids of the ink receiving layer 14 are filled and heated in a wet state.
When the filling material coated on the ink receiving layer 14 is in a wet state without being dried, the following gloss layer material 16a is applied, and the film 18 is adhered to the gloss layer material 16a. .
・ 100 parts by weight of colloidal silica
・ Casein 15 parts by weight
・ Coating amount 6g / m²(DRY)
Then, after the polyester film is adhered as the film 18 having a smooth surface, the gloss layer material 16a is formed into a dry film to form the gloss layer 16, and then the film 18 is peeled off.
In this way, fine holes were opened in the glossy layer 16 when coated, and when ink jet ink was ejected by an ink jet printer or the like, it was possible to print beautifully.
[0036]
(Comparative Example 1)
The ink receiving layer 14 was formed in the same manner as in Example 1.
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
・ Polyvinyl alcohol 10 parts by weight
・ Coating amount 7g / m²(DRY)
Then, after the polyester film is adhered as the film 18 having a smooth surface, the gloss layer material 16a is formed into a dry film to form the gloss layer 16, and then the film 18 is peeled off.
In this way, when ink jet ink is ejected onto the liquid ink recording glossy paper with an ink jet printer or the like using the obtained liquid ink recording glossy paper, the ink jet ink soaks into the liquid ink recording glossy paper. , Gloss was not obtained.
[0037]
(Comparative Example 2)
The ink receiving layer 14 was formed in the same manner as in Example 1.
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
・ Casein 15 parts by weight
・ Coating amount 6g / m²(DRY)
Then, after the polyester film is adhered as the film 18 having a smooth surface, the gloss layer material 16a is formed into a dry film to form the gloss layer 16, and then the film 18 is peeled off.
In this way, when ink jet ink is ejected onto the liquid ink recording glossy paper with an ink jet printer or the like using the obtained liquid ink recording glossy paper, the ink jet ink soaks into the liquid ink recording glossy paper. , Gloss was not obtained.
[0038]
  ResultFruits coated with the filler (Examples 1 and 2) were glossy and could be printed with an inkjet printer.
[0039]
The recording paper according to the present invention is not limited to use as an inkjet recording medium, and can be used for any recording medium that uses liquid ink during recording.
As such a recording medium, for example, a hot-melt room temperature solid ink mainly composed of waxes, resin components, dyes and pigments 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, heated from the back side of the ink on the donor sheet, and a hot-melt transfer recording medium for transferring the ink by melting it. Ink jet recording medium for recording, flying recording, ink jet recording medium using ink in which oil-soluble dye is dissolved in solvent, photopolymerizable monomer, photosensitive pressure sensitive type using microcapsules containing colorless or colored dye and / or pigment Examples thereof include an image receiving recording medium of a donor sheet.
What is common on these recording media is that the ink is in a liquid state during recording. The liquid ink penetrates 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.
[0040]
【The invention's effect】
According to the present invention, when a glossy layer is formed, a smooth and beautiful glossy paper is obtained by bringing a film having a smooth surface into close contact with the surface of the material and peeling the film after the glossy layer is formed. Obtainable.
[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.
2 is a cross-sectional view showing a process of attaching a film on a material of a glossy layer in order to produce the glossy paper for recording liquid ink shown in FIG. 1. FIG.
3 is a cross-sectional view showing a process of laminating a glossy layer formed on a film on an intermediate layer material in order to produce the glossy paper for recording liquid ink shown in FIG.
[Explanation of symbols]
10 Glossy paper for recording liquid ink
12 Base material
14 Ink receiving layer
16 Glossy layer
16a Glossy layer material
18 films

Claims (5)

A method for producing a glossy paper for recording liquid ink, 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 liquid ink comprises A step of forming an intermediate layer having a void so as to be received between the material, and filling the void in the intermediate layer so that the gloss layer material does not enter the void in the intermediate layer from the surface of the intermediate layer; Applying a filler material that evaporates when dried onto the intermediate layer; applying a gloss layer material onto the intermediate layer coated with the filler material without drying the filler material; and a step of the material of the gloss layer is pressed against the film on the surface of the material of the coating gloss layer prior to drying, the dried material of the gloss layer, at the same time, a gloss layer formed the coated filler material dried the method comprising the steps of forming a film, said Phil The includes the steps of stripping, manufacturing method of liquid ink recording glossy paper as the material of the gloss layer can not soak into the intermediate layer. The method for producing glossy paper for liquid ink recording according to claim 1 , wherein the filling material contains volatile alcohol, water, or an aqueous copper sulfate solution so that the material of the glossy layer does not soak into the intermediate layer. The glossy layer material according to any one of claims 1 to 2 , wherein the intermediate layer includes a pigment that absorbs an ink fixing agent, an ink dye, and the like, and is formed so as to adsorb liquid ink. A method for producing a glossy paper for recording liquid ink so as not to soak into the ink. The glossy paper for recording liquid ink according to claim 3 , wherein the intermediate layer is formed by coating a base material with a mixture containing a pigment containing synthetic silica so that the gloss layer material does not soak into the intermediate layer. Method. A glossy paper for recording liquid ink, which is manufactured by the method according to any one of claims 1 to 4 so that the glossy layer material does not penetrate into the intermediate layer.

Images