JP2011093311A - Imaging object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique for suitably forming an imaging object which has an image including one area with gloss and the other area with no gloss on a recording surface of a liquid-absorbing base. <P>SOLUTION: When forming the image on the recording surface 210 of the liquid-absorbing base 200 having liquid absorption properties, the recording surface 210 is made so as not to be exposed on areas 220A, 220B and 220C which are formed of ink dots 232 and 242 of ink droplets in energy curable type ink given thereto and cured, while the recording surface 210 is made so as to be exposed on the other area 250 which is formed of an ink dot 252, so that the imaging object 100 having different feels of glossiness is formed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an image formed product in which an image is formed by ink dots.

  2. Description of the Related Art Conventionally, a technique (configuration) related to ink jet recording in which ink is ejected to form (record) an image on a recording medium has been proposed. For example, at least one of a recording head that ejects ink that is cured by irradiating active energy rays onto a recording medium, an irradiation device that irradiates the ejected ink with active energy rays, and a recording medium or recording head. When the moving mechanism to move and the maximum liquid absorption amount of the recording medium or the liquid absorption amount after a certain time exceeds the threshold, the time until the active energy ray is irradiated to the ink after the ink has landed on the recording medium There has been proposed an ink jet recording apparatus including a control unit that controls a moving head and controls a recording head so as to reduce the amount of ink to be ejected while shortening the moving mechanism. In addition, according to this ink jet recording apparatus, a high-definition image with uniform image quality can be obtained. In addition, since the texture of the image can be controlled without changing the ink amount per unit area, the desired image can be obtained while reducing the influence on the density and color gamut. (For example, refer to Patent Document 1).

JP 2007-144849 A

  Incidentally, it is widely performed to record a predetermined image on a predetermined base material by, for example, an ink jet recording apparatus. When an image is recorded on a substrate having liquid absorbency (liquid absorbent substrate), the ink applied to the recording surface is absorbed by the substrate. However, since the amount of liquid absorption varies depending on the amount of applied ink, the glossiness varies within one recorded image. On the other hand, according to the ink jet recording apparatus (technique) as in Patent Document 1, it is supposed that the recorded image can be in a state of uniform image quality.

  Here, there are various types of images formed on a predetermined base material, and one of them is an image including both a non-glossy region and a glossy region. When an image having such a pattern is recorded, there is a risk that an image having no difference in glossiness may be formed according to the technique disclosed in Patent Document 1.

  The present invention provides a technique capable of suitably forming an image formed product in which an image including one glossy region and another non-glossy region is formed on a recording surface of a liquid-absorbing substrate. The purpose is to do.

  The present invention has been made in view of the above-mentioned problems, and in the formation (recording) of an image on the recording surface of a liquid-absorbing substrate having liquid-absorbing properties, ink droplets of energy-curable ink are applied to each specific region and cured. Ink dots are used so that the recording surface is not exposed or exposed, and a difference in glossiness is provided.

  The first problem-solving means that reflects the present invention is that an image is formed by ink dots that are cured by applying ink droplets of energy-curable ink on the recording surface of a liquid-absorbing substrate having liquid-absorbing properties. In the image formed product, the ink dots are formed in one area of the recording surface without exposing the recording surface of the liquid-absorbing substrate, and the liquid absorbing material is formed in the other area of the recording surface. The ink dots are formed so that the recording surface of the conductive substrate is exposed.

  According to this, it can be set as the image formation in which the glossy image was formed about the intended one area | region. Here, when ink droplets are applied to a liquid-absorbing substrate having liquid absorbency, the recording surface is not covered with ink dots that are cured from the ink droplets, in other words, the region where the recording surface is exposed. In this case, the ink droplets are absorbed by the liquid-absorbing substrate, and as a result, the resin content contained in the energy curable ink is reduced on the recording surface, so that the glossiness is suppressed. On the other hand, in the area where the recording surface is not exposed with the ink dots that have been applied with ink droplets so as to cover the recording surface and the recording surface is not exposed, the resin content exceeds the liquid absorbing property of the liquid absorbing substrate. Because it cures with, it can give a glossy feeling.

  The second problem solving means is an image formed product of the first problem solving means, wherein the one region includes a first type region and a second type region, and the first type region is the first type region. It is a region having a higher color density than the two types of regions and the other regions. According to this, it can be set as the image formation which reproduced the glossiness (black glow tone) about the dark color.

  The third problem solving means is an image formed product of the first problem solving means, wherein the one area includes a first type area and a second type area, and the second type area is the first type area. It is a region having a color density lower than that of the one type region and the other region. According to this, it can be set as the image formation which reproduced glossiness about the light color with low color density.

  The fourth problem solving means is an image formed product according to any one of the first to third problem solving means, and the glossiness of the recording surface is 50% or less of the glossiness in the one region. It is characterized by that. According to this, it is possible to sharpen the glossiness between one area and the other area of the recording surface in the image formed product on which the image is formed.

  According to the present invention, a technique capable of suitably forming an image formed article in which an image including one glossy area and another non-gloss area is formed on the recording surface of the liquid-absorbing substrate. Can be obtained.

(A) is a top view of an image formed product, (b) is an AA cross section shown in (a), and (c) is a BB cross section shown in (a). (A)-(c) is a figure explaining the glossing process of a granite pattern. It is a figure which shows an ink dot density table. (A)-(c) is a figure explaining the glossing process of a ring pattern.

  Embodiments for implementing the above problem solving means reflecting the present invention will be described below in detail with reference to the drawings. The above-mentioned problem solving means is not limited to the configuration described below, and various configurations can be adopted in the same technical idea.

(Image formation)
The image formed product 100 will be described with reference to FIG. Note that FIG. 1 is for ease of explanation, and actually, an image different from this is formed (recorded) on the image formed object 100. For example, an image of a natural stone pattern including a mineral, more specifically a granite pattern or a ring pattern is formed. Here, in the granite pattern image, the mineral part (region) is glossy, and the other parts are not glossy (less). Further, the ring pattern image may be in a mode in which the ring portion is glossy and the other portions are not glossy (less). A recording surface 210 which is a portion (area) where an image is formed is set on the surface of the liquid-absorbing substrate 200. If no blank portion is set, the surface of the liquid-absorbing substrate 200 becomes the recording surface 210.

  An image formed on the recording surface 210 of the image formed article 100 is formed using an ink jet recording apparatus. Specifically, energy curable ink is ejected onto the recording surface 210 of the liquid-absorbent substrate 200 from nozzles formed in a recording head unit included in the ink jet recording apparatus. The ejected ink droplets are applied to the recording surface 210. After the ink droplets are applied to the recording surface 210, the ink droplets are irradiated with a predetermined energy, the ink droplets are cured, and an image is formed by the ink dots 232, 242, 252 by the cured ink droplets. On the recording surface 210 of the image-formed product 100, images in which objects are arranged in one area 220A, 220B, 220C (hereinafter collectively referred to as “one area 220”) and another area 250, respectively. Is formed.

  In one region 220, the ink dot density is high, that is, the thickness of the ink dots 232 and 242 obtained by applying ink droplets without exposing the recording surface 210 of the liquid-absorbent substrate 200 and curing the deposited ink droplets. A film of t (thickness with respect to the recording surface 210) is formed. The film formed by the ink dots 232 and 242 is formed by curing a resin component that exceeds the liquid absorption amount of the liquid-absorbing substrate 200 by energy applied after the image is formed. The film has glossiness, and an observer who visually recognizes the image formation 100 obtains glossiness in the one region 220. 30-100 are preferable and, as for the glossiness of a film | membrane, 60-85 are more preferable. The glossiness is a value measured at an incident angle of 60 degrees according to JIS Z 8741 (mirror surface glossiness measurement method) (the same applies to the glossiness shown below). When the area in the image is narrow and cannot be directly measured, the scale may be created in advance, and the glossiness may be obtained by a method of comparing the area requiring measurement with the scale.

  In the other region 250, ink droplets are applied such that the ink dot density is lower than that of the one region 220, that is, the recording surface 210 of the liquid-absorbing substrate 200 is exposed (FIG. 1 (c)). (See the gap s). In the other region 250, the film as in the one region 220, that is, the film formed by the ink dots 252 is not formed. In other regions 250, ink droplets applied to the recording surface 210 are absorbed by the liquid-absorbing substrate 200, and ink dots 252 are formed in a state where the ink droplets are absorbed. In other words, the ink dots 252 do not form a film like the one region 220 while being absorbed by the liquid-absorbing substrate 200. An observer who visually recognizes the image formation 100 obtains a lower gloss feeling in the other region 250 than in the one region 220. That is, the observer obtains a different gloss feeling for one region 220 and the other region 250.

  Here, the one region 220 includes a first type region 230 and a second type region 240. The first type region 230 forming one region 220 is a region having a higher color density than the other regions 250. In addition, the second type region 240 forming the one region 220 is a region having a color density lower (lighter) than the other regions 250. The first type region 230 is a region formed by ink dots 232, and the second type region 240 is a region formed by ink dots 242. The first type region 230 is a region having a higher color density than the second type region 240. In other words, the second type region 240 is a region having a lower color density than the first type region 230. In order to give glossiness in the second type region 240 having a low color density, light or transparent energy curable ink is used to increase the ink dot density. Regarding the relationship between the first type region 230 or the second type region 240 and the peripheral region 260 (the base of the recording surface 210) excluding the one region 220 and the other region 250 from the recording surface 210, the first type region Reference numeral 230 denotes a region having a higher color density than the peripheral region 260, and the second type region 240 may be a region having a lower color density than the peripheral region 260.

(Liquid absorbing substrate)
The liquid-absorbing substrate 200 that forms the image-formed product 100 may be any medium as long as it has liquid-absorbing properties that absorb energy curable ink on the recording surface 210. Examples of the liquid-absorbing substrate 200 include moisture absorbing materials (humidity control building materials), dew condensation preventing materials, drip-proof materials, water retaining materials, heat insulating materials, vibration absorbing materials, sound absorbing materials, water absorbing materials, and other building materials, woven fabrics, knitted fabrics, Nonwoven fabrics and other fiber structures, punched carpets and the like can be mentioned. In addition, examples of the liquid-absorbing substrate 200 include concrete products such as concrete blocks.

  The liquid-absorbing substrate 200 is a non-glossy substrate, and the glossiness of the recording surface 210 is, for example, 50% or less of the glossiness of one region 220, that is, the glossiness of the film formed by the ink dots 232 and 242. Preferably there is. Specifically, the glossiness of the recording surface 210 is preferably 0 to 40, and more preferably 0 to 10.

(Energy curable ink)
Examples of the energy curable ink applied to the recording surface 210 of the image-formed product 100 of the present embodiment include ultraviolet curable ink and electron beam curable ink. Since these have a high curing rate, the resin component exceeding the liquid absorbency of the liquid-absorbent substrate 200 is easily cured on the surface layer (recording surface 210) of the liquid-absorbent substrate 200. Therefore, it is possible to cover a specific area of the recording surface 210 of the liquid-absorbing substrate 200 without exposing it, and to control glossiness.

  The ultraviolet curable ink contains a pigment, a reactive monomer and / or a reactive oligomer, a photopolymerization initiator, and further contains an additive as necessary. The electron beam curable ink contains a pigment, a reactive monomer and / or a reactive oligomer, and further contains an additive as necessary. The ink color can be appropriately selected from cyan, magenta, yellow and black, as well as light cyan, light magenta, light yellow, white, gray and clear (transparent) color. Light cyan, light magenta, and light yellow energy curable inks are lighter colors than cyan, magenta, and yellow energy curable inks. Specifically, the density ratio is, for example, 10 to 30%.

  Here, the pigment concentration is preferably 0.5 to 20 parts by weight in 100 parts by weight of the ultraviolet curable ink or the electron beam curable ink. If the pigment concentration of the ink is less than 0.5 parts by weight, coloring may be insufficient, and image recording (image formation) may be difficult. If the pigment concentration exceeds 20 parts by weight, The viscosity of the ink becomes high and handling at the time of image recording becomes difficult.

  The pigment includes organic pigments and inorganic pigments. Examples of organic pigments include nitroso, dyed lakes, azos, phthalocyanines, anthraquinones, perylenes, quinacridones, dioxazines, isoindolines, quinophthalones, azomethines, and pyrrolopyrroles. Inorganic pigments include metal oxides, hydroxides, sulfides, ferrocyanides, chromates, carbonates, silicates, phosphates, carbons (carbon black), metal powders, etc. Can be mentioned. Each organic pigment or each inorganic pigment can be used alone or in combination.

  Examples of reactive monomers include hexafunctional acrylates such as dipentaerythritol hexaacrylate and modified products thereof; pentafunctional acrylates such as dipentaerythritol hydroxypentaacrylate; tetrafunctionals such as pentaditrimethylolpropane tetraacrylate and pentaerythritol tetraacrylate. Acrylates; trifunctional acrylates such as trimethylolpropane triacrylate, pentaerythritol triacrylate, tris (2-hydroxyethyl) isocyanurate triacrylate, glyceryl triacrylate; hydroxypivalic acid neopentyl glycol diacrylate, polytetramethylene glycol diacrylate, Trimethylolpropane acrylate benzoate, diethyleneglycol Diacrylate, triethylene glycol diacrylate, tetraethylene glycol diacrylate, polyethylene glycol (200) diacrylate, polyethylene glycol (400) diacrylate, polyethylene glycol (600) diacrylate, neopentyl glycol diacrylate, 1,3-butane Bifunctional acrylates such as diol diacrylate, 1,4-butanediol diacrylate, 1,6-hexanediol diacrylate, 1,9-nonanediol diacrylate, dimethylol-tricyclodecane diacrylate, bisphenol A diacrylate; and , Caprolactone acrylate, tridecyl acrylate, isodecyl acrylate, isooctyl acrylate, isomyristyl acrylate , Isostearyl acrylate, 2-ethylhexyl-diglycol diacrylate, 2-hydroxybutyl acrylate, 2-acryloyloxyethyl hexahydrophthalic acid, neopentyl flycol acrylate benzoate, isoamyl acrylate, lauryl acrylate, stearyl acrylate , Butoxyethyl acrylate, ethoxy-diethylene glycol acrylate, methoxy-triethylene glycol acrylate, methoxy-polyethylene glycol acrylate, methoxydipropylene glycol acrylate, phenoxyethyl acrylate, phenoxy-polyethylene glycol acrylate, nonylphenol acrylate, tetrahydrofurfuryl acrylate, isobornyl acrylate 2-Hido Roxyethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-acryloyloxyethyl-succinic acid, 2-acryloyloxyethyl-phthalic acid, 2-acryloyloxyethyl-2-hydroxy And monofunctional acrylates such as ethyl-phthalic acid. In particular, a bifunctional monomer is preferable in terms of excellent toughness and flexibility. Among the bifunctional monomers, aliphatic reactive monomers composed of hydrocarbons, specifically 1,6-hexanediol diacrylate, neopentylglycol diacrylate, 1,3-butanediol, are non-yellowing. Diacrylate, 1,4-butanediol diacrylate, 1,9-nonanediol diacrylate and the like are preferable.

  The reactive monomer further includes a reactive monomer obtained by adding a functional group of phosphorus, fluorine, ethylene oxide, or propylene oxide to the reactive monomer. Moreover, these reactive monomers can be used individually or in combination of 2 or more types.

  The reactive monomer is preferably contained in an amount of 50 to 85 parts by weight in 100 parts by weight of the ultraviolet curable ink or the electron beam curable ink. When the amount is less than 50 parts by weight, the viscosity of the ink becomes high and handling becomes difficult when image recording is performed. When the amount exceeds 85 parts by weight, other components necessary for curing may be insufficient and curing may be poor.

  Examples of the reactive oligomer used in the ink include urethane acrylate, polyester acrylate, epoxy acrylate, silicon acrylate, and polybutadiene acrylate, and these can be used alone or in combination of two or more. In particular, urethane acrylate is preferable in terms of excellent toughness, flexibility, and adhesion. Among the urethane acrylates, aliphatic urethane acrylates composed of hydrocarbons are more preferable because they are hardly yellowing.

  The reactive oligomer is preferably contained in 1 to 40 parts by weight, more preferably 5 to 40 parts by weight, and further preferably 10 to 30 parts by weight in 100 parts by weight of the ultraviolet curable ink or the electron beam curable ink. When the reactive oligomer is in the range of 1 to 40 parts by weight, the cured film of ink droplets is more excellent in terms of toughness, flexibility and adhesion.

  Examples of the photopolymerization initiator used in the ultraviolet curable ink include benzoins, benzyl ketals, aminoketones, titanocenes, bisimidazoles, hydroxyketones and acylphosphine oxides. These may be used alone or in combination of two or more. Can be used in combination. In particular, hydroxyketones and acylphosphine oxides are preferable in that they are highly reactive and hardly yellowing.

  The addition amount of the photopolymerization initiator is preferably 1 to 15 parts by weight, more preferably 3 to 10 parts by weight, per 100 parts by weight of the ultraviolet curable ink. If the amount is less than 1 part by weight, the polymerization may be incomplete and the film may be uncured. On the other hand, if the amount exceeds 15 parts by weight, further improvement in the curing rate and curing rate cannot be expected, resulting in high cost. It becomes.

  If necessary, a dispersant may be added to the ultraviolet curable ink or the electron beam curable ink for the purpose of dispersing the pigment. Examples of the dispersant include anionic surfactants, cationic surfactants, nonionic surfactants, zwitterionic surfactants and polymer dispersants, and these are used alone or in combination of two or more. can do.

  Further, if necessary, the ultraviolet curable ink or the electron beam curable ink includes a heat stabilizer, an antioxidant, an antiseptic, an antifoaming agent, a penetrating agent, a resin binder, a resin emulsion, an anti-reducing agent, a leveling agent, Additives such as pH adjusters, pigment derivatives, polymerization inhibitors, ultraviolet absorbers, and light stabilizers can also be added. A sensitizer for accelerating the initiation reaction of the photopolymerization initiator can be added to the ultraviolet curable ink.

  The energy curable ink can be obtained by mixing the materials described above, further dispersing the mixture using a disperser such as a roll mill, ball mill, colloid mill, jet mill, or bead mill, and then performing filtration. it can. As the disperser, a bead mill is preferable because it can be dispersed in a large amount in a short time.

(Inkjet recording method)
An ink jet recording method for forming the image formed product 100 will be described with reference to FIGS. In this inkjet recording method, for example, when an image showing a granite pattern (see FIG. 2A) is formed using region information, the ink dot density in one specific region and the ink dots in other regions are used. This is a method of reproducing a glossy feeling in one specific region by providing a difference in density (see FIG. 2B). In addition, in this ink jet recording method, for example, when an image showing a ring pattern (see FIG. 4A) is formed using region information, the ink dot density in other specific regions and the other regions This is a method of reproducing the glossiness in the other specific region by providing a difference with the ink dot density (see FIG. 4B). Here, the area information is information for specifying an arbitrary area, and examples thereof include mask information and layer information. The area information may be color information constituting one pixel unit, and examples thereof include RGB values, CMYK values, gray scales, monochrome binary values, Labs, and indexes.

  In addition, one specific region is as described above: “A film having a thickness t is formed by the ink dots 232 to which the ink droplets are applied without exposing the recording surface 210 of the liquid-absorbent substrate 200 and the deposited ink droplets are cured. This is a region corresponding to the first type region 230 ”that forms the one region 220 that is formed. Hereinafter, a region forming one region in which a film having a thickness t is formed by ink dots to which ink droplets are applied without exposing the recording surface of the liquid-absorbing substrate and the deposited ink droplets are cured is referred to as “first”. It is also referred to as “type 1 region 330”. The region other than this is a region corresponding to “the other region 250 to which ink droplets are applied so that the recording surface 210 of the liquid-absorbent substrate 200 is exposed” in the above. Hereinafter, the area where the recording surface of the liquid-absorbent substrate is exposed is also referred to as “another area 350”. The other specific area is as described above: “Ink droplets are applied without exposing the recording surface 210 of the liquid-absorbent substrate 200, and a film having a thickness t is formed by the ink dots 242 obtained by curing the deposited ink droplets. This is a region corresponding to the second type region 240 ”that forms one region 220. Hereinafter, a region forming one region in which a film having a thickness t is formed by ink dots to which ink droplets are applied without exposing the recording surface of the liquid-absorbing substrate and the deposited ink droplets are cured is referred to as “first”. It is also referred to as “type 2 region 340”. The first type region 330 is a region having a higher color density than the second type region 340. In other words, the second type region 340 is a region having a lower color density than the first type region 330.

  Specific steps executed in the ink jet recording method will be described. In the following description, a granite pattern is taken as an example of the image formed on the image-formed product 100 (see Examples 1 and 2), and the glossiness of the mineral portion of the granite pattern is reproduced. Further, as an image formed on the image formation 100, a ring pattern is taken as an example (see Example 3), and the glossiness of the ring portion of the ring pattern is reproduced. As the liquid-absorbent substrate 200, a moisture-control building material (hygroscopic material) was used. The gloss of the humidity-controlled building material was 1. Image editing software Photoshop (registered trademark) (version 7.0) manufactured by Adobe was used to edit the granite pattern and ring pattern.

  In the first step, a region 300 (see FIG. 2A) that is the first type region 330 for which a glossy feeling is desired is extracted from the granite pattern. For example, in the granite pattern of FIG. 2A (see the diagram shown on the left), the mineral portion contained in the portion surrounded by “◯” is extracted as the region 300 (see the enlarged diagram shown on the right). In addition, an area 400 (see FIG. 4A) that is the second type area 340 for which a glossy feeling is desired is extracted from the ring pattern. For example, four ring portions constituting the ring pattern in FIG.

  In the second step, the regions 300 and 400 extracted in the first step can be distinguished as the regions to be glossed. For example, the areas 300 and 400 to be glossed are distinguished as mask information (see Examples 1 and 2) or layer information. In addition, it can also be distinguished as color information (see Example 3). Here, when there is a large amount of color information such as a full-color image, if an area to be glossed is replaced with a color that is not used in the image, for example, a high saturation color, the subsequent processing is performed. Is easy and suitable.

  In the third step, raster image processing is performed, and density increase data in the ink dot density table shown in FIG. 3 is prescribed for the regions 300 and 400 distinguished in the second step. At this time, data previously converted into a LUT (Look up Table) may be used. For example, LUT-designed data designed to use light color ink as much as possible (see “Data 1” in FIG. 3), or data in which a certain amount of clear ink is added (“Data 2” in FIG. 3). It is good to use. Note that basic ink data (see FIG. 4A) is used for the areas not subjected to the glossing process (the area excluding the area 300 in the enlarged view shown on the right side of FIG. 2A and the area excluding the area 400 in FIG. 4A). 3 “Basic ink data”).

  Hereinafter, the image forming product 100 of Examples 1 to 3 in which the first step to the third step are executed and the resulting image is formed will be considered.

Example 1
In Example 1, a granite pattern was formed on the humidity-controlled building material using an ink jet recording apparatus provided with ultraviolet curable inks of a total of five colors of cyan, magenta, yellow, black, and clear. In the first embodiment, the region 300 to be the first type region 330 is distinguished as binary mask information, and the region 300 to be the first type region 330 is further processed to add 100% of clear ink. (See “Data 2” in FIG. 3). According to the first embodiment, it is possible to increase the ink dot density in the first type region 330 having a higher color density than the other regions 350.

  In Example 1, it was possible to obtain an image formed product 100 in which a granite pattern image having gloss was formed on the mineral portion which is the first type region 330. The granite was partially blackened. As a result of the visual determination of the image formed product 100 of Example 1 using a glossiness scale created in advance using a matching formula, two first-type regions 330 arranged vertically on the left side when FIG. 2B is viewed from the front. The glossiness of (mineral part) was 60, the glossiness of the other two first-type regions 330 was 50, and the glossiness of the other regions 350 was 3. Since the measurement area was small, the visual judgment was made by a matching formula using a glossiness scale.

(Example 2)
In Example 2, a granite pattern was formed on the humidity-controlled building material using an ink jet recording apparatus provided with a total of eight colors of ultraviolet curable ink, which is a combination of cyan, magenta, yellow, black, and these light colors. In the second embodiment, the region 300 to be the first type region 330 is distinguished as binary mask information. Further, for the region 300 to be the first type region 330, the amount of dark ink applied is proportionally distributed. Thus, processing was performed using LUT data designed so that light color ink was used as much as possible (see “Data 1” in FIG. 3). According to the second embodiment, it is possible to increase the ink dot density in the first type region 330 having a higher color density than the other regions 350.

  Also in Example 2, it was possible to obtain an image formed product 100 in which an image of a granite pattern having gloss was formed on the mineral portion which is the first type region 330. The granite was partially blackened. As a result of visual determination using the matching formula for the image formed product 100 of Example 2 using a glossiness scale created in advance, two first-type regions 330 arranged vertically on the left side when FIG. 2B is viewed from the front. The glossiness of (mineral part) was 70, the glossiness of the other two first-type regions 330 was 60, and the glossiness of the other regions 350 was 3. Since the measurement area was small, the visual judgment was made by a matching formula using a glossiness scale.

(Example 3)
In Example 3, a ring pattern was formed on the humidity-controlled building material using an ink jet recording apparatus provided with the five colors of ultraviolet curable ink. Further, in Example 3, the color of the region 400 to be the second type region 340 is replaced with a white RGB value (255, 255, 255), and is distinguished as the region 400. The region 400 that is the second type region 340 was processed using LUT-designed data designed to add 100% clear color (see “Data 2” in FIG. 3). Normally, since white is data to which no ink is added, in this case, only clear ink is added 100%. According to the third embodiment, it is possible to increase the ink dot density even in the second type region 340 having a color density lower than that of the other regions 350, and the ink dots are limited to only clear ink. The density can also be increased.

  Also in Example 3, it was possible to obtain an image formed product 100 in which a ring pattern image having a gloss was formed on the ring portion which is the second type region 340. As a result of visual determination using the matching formula for the image-formed product 100 of Example 3 using a glossiness scale created in advance, the glossiness of the second type region 340 (ring portion) is 75, and the glossiness of the other regions 350 is determined. The degree was 3.

(Discussion)
Hereinafter, Examples 1 to 3 will be considered with reference to FIGS. 2B and 2C and FIGS. 4B and 4C. In FIGS. 2B and 2C, and FIGS. 4B and 4C, the resin amount is expressed by the color intensity. Specifically, a portion (region) with a large amount of resin is shown in a dark color.

  (1) With respect to Examples 1 and 2, a granite pattern formed on the image-formed product 100 according to each of these examples is shown in FIG. 2B, and a granite pattern formed without performing the above processing is shown in FIG. As shown in FIG. In FIG. 2B in which the gloss increase process is executed and the density increase data is prescribed, the glossiness of the mineral portion (first type region 330) is the glossiness of the region 360 of the mineral portion in FIG. Higher than degree. Therefore, according to the methods of Examples 1 and 2, the glossiness of the granite-patterned mineral portion can be improved.

  (2) With respect to Example 3, the ring pattern formed on the image-formed product 100 according to this example is shown in FIG. 4B, and the ring pattern formed without performing the above processing is shown in FIG. c). In FIG. 4B in which the glossing process is executed and the density increase data is prescribed, the glossiness of the ring portion (second type region 340) is the glossiness of the region 370 of the ring portion in FIG. Higher than degree. Therefore, according to the method of Example 3, the glossiness of the ring portion of the ring pattern can be improved.

  (3) In the first to third embodiments, the other regions 350 that are not subjected to the glossing process are the same as those in FIGS. 2B and 2C and FIGS. 4B and 4C. It becomes an aspect (glossiness). Therefore, according to the processing of Examples 1 to 3, in the first step of the ink jet recording method, the region 300 (granite-patterned mineral portion) extracted as performing the glossing processing and the region 400 (ring-shaped ring portion) ), The glossiness can be improved.

100 Image formation 200 Liquid absorbing substrate 210 Recording surface 220, 220A, 220B, 220C One area 230, 330 First type area 232, 242, 252 Ink dot 240, 340 Second type area 250, 350 Other area 260 Surrounding area

Claims (4)

An image-formed product in which an image is formed by ink dots that have been cured by applying ink droplets of energy-curable ink to the recording surface of a liquid-absorbing substrate having liquid-absorbing properties,
In one region of the recording surface, the ink dots are formed without exposing the recording surface of the absorbent substrate,
The image-formed product, wherein the ink dots are formed so that the recording surface of the liquid-absorbing substrate is exposed in another region of the recording surface. The one region includes a first type region and a second type region,
The image-formed product according to claim 1, wherein the first type region is a region having a higher color density than the second type region and the other region. The one region includes a first type region and a second type region,
The image-formed product according to claim 1, wherein the second type region is a region having a lower color density than the first type region and the other region.   The image formed product according to any one of claims 1 to 3, wherein the glossiness of the recording surface is 50% or less of the glossiness in the one region.