JP2021031821A - Inkjet recording method and inkjet recording device - Google Patents

Abstract

To provide an inkjet recording method, which can give a recorded matter achieving both excellent texture and excellent fastness to friction.SOLUTION: The inkjet recording method includes a step of depositing a second composition, a first composition and a third composition in the described order on a recording medium comprising a fabric in such a manner that at least a part of the second composition and at least a part of the first composition overlap and that at least a part of the first composition and at least a part of the third composition overlap. The first composition, the second composition and the third composition each comprise a pigment and resin particles; the first composition is a chromatic ink having an optical density OD value of 1.3 or more, or an achromatic ink having a lightness L of less than 25; and each of the second composition and the third composition is a chromatic ink having an optical density OD value of less than 1.3, or an achromatic ink having a lightness L of 25 or more. The optical density OD value and the lightness L are an optical density OD value and a lightness L of a recorded matter prepared by depositing the first composition, the second composition or the third composition in an amount of 36 g/m2 on a recording medium sample comprising a fabric.SELECTED DRAWING: None

Description

The present invention relates to an inkjet recording method and an inkjet recording device.

The inkjet recording method is a relatively simple device capable of recording high-definition images, and is rapidly developing in various fields. Among them, various studies have been made on obtaining more stable and high-quality recorded materials.

For example, Patent Document 1 discloses an inkjet recording ink set that is excellent in color development, stability, and fixability, and is particularly excellent as an inkjet recording ink for textiles. This ink set contains a dispersion in which carbon black can be dispersed in water without a dispersant and has an average particle size of 50 nm or more and 300 nm or less, a glass transition temperature of -10 ° C or less, and an acid value of 100 mgKOH / g or less. A black ink composition containing certain polymer fine particles, and a dispersion in which a pigment can be dispersed in water using a polymer and having an average particle size of 50 nm or more and 300 nm or less, and gel permeation chromatography of the polymer. At least one kind or more comprising a dispersion having a styrene-equivalent weight average molecular weight of 10,000 or more and 200,000 or less and polymer fine particles having a glass transition temperature of −10 ° C. or less and an acid value of 100 mgKOH / g or less. It is characterized by having a color ink composition.

Japanese Unexamined Patent Publication No. 2010-43149

However, when inkjet recording is performed on a recording medium containing a cloth using an ink composition containing a pigment and resin particles as described in Patent Document 1, the ink composition becomes a chromatic ink having a high optical density. There is still room for improvement in the frictional fastness of the resulting recorded material when it is a composition or a low-brightness achromatic ink composition. Further, if the amount of resin particles in such an ink composition is increased simply to improve the friction fastness, the texture of the obtained recorded material is deteriorated.

As a result of diligent studies to solve the above problems, the present inventors have added the second composition, the first composition, and the third composition to the recording medium containing the cloth in this order, at least the second composition. The first composition, the first composition, has a step of adhering so that a part of the substance and at least a part of the first composition overlap, and at least a part of the first composition and at least a part of the third composition overlap. Each of the two compositions and the third composition contains a pigment and resin particles, and the first composition is a chromatic ink having an optical density OD value of 1.3 or more, or a lightness L of 25. Achromatic ink of less than, and each of the second composition and the third composition is a chromatic ink having an optical density OD value of less than 1.3, or an achromatic ink having a lightness L of 25 or more. The optical density OD value and the lightness L are the optical density OD value of the recorded material to which the first composition, the second composition, or the third composition is attached at ^{36 g / m 2 with respect to the recording medium sample containing the cloth.} The present invention has been completed by finding that it is possible to obtain a recorded material having both excellent texture and excellent frictional fastness by using an inkjet recording method having a brightness of L.

That is, in the present invention, the second composition, the first composition, and the third composition are added to the recording medium containing the cloth in this order, at least a part of the second composition and at least the first composition. The first composition, the second composition, and the first composition have a step of adhering so that a part of the above overlaps and at least a part of the first composition and at least a part of the third composition overlap. Each of the three compositions contains a pigment and resin particles, and the first composition is a chromatic ink having an optical density OD value of 1.3 or more, or an achromatic color having a lightness L of less than 25. Each of the second composition and the third composition is a chromatic color ink having an optical density OD value of less than 1.3, or an achromatic color ink having a lightness L of 25 or more. The optical density OD value and the lightness L are the optics of the recorded product to which the first composition, the second composition, or the third composition is attached at ^{36 g / m 2} with respect to the recording medium sample containing the cloth. It is an inkjet recording method having a density OD value and a brightness L.

Further, in the inkjet recording method according to the present invention, it is preferable that the second composition and the third composition are the same as each other. Further, the first composition is preferably at least one of cyan ink, magenta ink, and black ink. Further, the difference between the hue angle h of the first composition and the hue angle h of the second composition and the hue angle h of the third composition is 30 ° or less, and the hue angle h is The hue angle h of the first composition, the second composition, or the recorded product to which the third composition is attached is preferably ^{36 g / m 2} with respect to the recording medium sample containing the cloth. Furthermore, it is preferable that the first composition and each of the second composition and the third composition contain the pigment having the same color as each other. Furthermore, in each of the first composition, the second composition and the third composition, the content of the resin particles is different from the first composition, the second composition and the third composition, respectively. It is preferably 3.0 to 10% by mass with respect to the total amount of.

Further, in the inkjet recording method according to the present invention, the mass ratio of the resin particles to the pigment in the first composition is the mass ratio of the resin particles to the pigment in each of the second composition and the third composition. It is preferable that it is smaller than the ratio. Further, the content of the pigment in the first composition is larger than the content of the pigment in each of the second composition and the third composition, and the content of the resin particles in the first composition is higher. The amount is preferably smaller than the content of the resin particles in each of the second composition and the third composition. Further, it is preferable that the acid value of the resin contained in the resin particles in each of the second composition and the third composition is 20 to 100 KOHmg / g. Furthermore, it is preferable that the fabric is treated with any of a polyvalent metal salt, a cationic polymer, and a cationic surfactant. Furthermore, it is preferable that the resin contained in the resin particles in each of the first composition, the second composition and the third composition is urethane resin particles and / or (meth) acrylic resin particles.

In addition, in the inkjet recording method according to the present invention, it is preferable that each of the first composition, the second composition and the third composition further contains a lubricant. Further, each of the first composition, the second composition and the third composition further contains trimethylolpropane, and the content of the trimethylolpropane in the first composition is the second composition. It is preferably less than the content of the trimethylolpropane in each of the product and the third composition.

The inkjet recording apparatus according to the present invention can eject the second composition, the first composition, and the third composition in this order so that at least a part of each overlaps on a recording medium containing a cloth. Each of the first composition, the second composition and the third composition contains a pigment and a resin particle, and the first composition has an optical density of OD. A chromatic ink having a value of less than 1.3, or an achromatic ink having a lightness L of 25 or more, each of the second composition and the third composition has an optical density OD value of 1. It is a chromatic color ink of 3 or more, or an achromatic color ink having a lightness L of less than 25, and the optical density OD value and the lightness L are 36 g / m ² with respect to a recording medium sample containing a cloth. It is an inkjet recording apparatus for recording on a recording medium containing a cloth, which has an optical density OD value and a brightness L of the first composition, the second composition, or a recorded material to which the third composition is attached. Further, in the recording head of the inkjet recording apparatus according to the present invention, the plurality of nozzle rows for ejecting the second composition and the third composition may form a plurality of the nozzle rows for ejecting the first composition. It is placed sandwiched between them.
An inkjet recording device capable of simultaneously ejecting the first composition, the second composition, and the third composition to the recording medium when the recording head is scanned against the recording medium. Is preferable.

It is a flowchart which shows an example of the inkjet recording method of this embodiment. It is a schematic diagram which shows an example of the recording head of this embodiment. A plurality of nozzle rows included in the recording head are arranged in the order of "1", "2", "3", and "4".

Hereinafter, embodiments of the present invention (hereinafter referred to as “the present embodiment”) will be described in detail with reference to the drawings as necessary, but the present invention is not limited thereto, and a gist thereof. Various deformations are possible within the range that does not deviate from. In addition, in this specification, "(meth) acrylic resin" means both an acrylic resin and the corresponding methacrylic resin.

In the present specification, "printing" means recording (printing) ink on a recording medium including a cloth, and is also referred to as "printing". Further, "inkjet printing" refers to recording (printing) an ink composition on a recording medium containing a cloth by using an inkjet method, and is a kind of inkjet recording. The “recorded material” refers to a material in which an ink composition is recorded on a recording medium containing a cloth to form an image.

Inkjet recording method The inkjet recording method of the present embodiment (hereinafter, also simply referred to as “recording method”) has a second composition, a first composition, and a third composition (hereinafter, also referred to as “recording method”) with respect to a recording medium containing a cloth. These are collectively referred to as "composition") in this order, at least a part of the second composition and at least a part of the first composition overlap, and at least a part of the first composition and at least a third composition. It has a step of adhering parts of objects so as to overlap each other. In addition, each of the first composition, the second composition and the third composition contains pigments and resin particles. Further, the first composition is a chromatic ink having an optical density OD value of 1.3 or more, or an achromatic ink having a lightness L of less than 25, and the second composition and the third composition, respectively. Is a chromatic color ink having an optical density OD value of less than 1.3, or an achromatic color ink having a lightness L of 25 or more. Here, the optical density OD value and the lightness L are the optical density OD value and the lightness L of the recorded material in which the composition is attached to the ^{recording medium sample containing the cloth at 36 g / m 2.}

By using the recording method of the present embodiment, the factors that can obtain a recorded material having both excellent texture and excellent frictional fastness are considered as follows. However, the factors are not limited to this. That is, when the conventional ink composition containing pigments and resin particles is used for inkjet recording on a recording medium containing a cloth, the ink composition becomes a chromatic ink composition having a high optical density or a low brightness. In the case of an achromatic ink composition, there is still room for improvement in the frictional fastness of the obtained recorded material. This is because the colors of these ink compositions are easily visible, and even a slight discoloration is easily recognized. On the other hand, when the ink composition is a chromatic ink composition having a low optical density or an achromatic ink composition having a high brightness, the colors of these ink compositions are relatively difficult to see, and discoloration is recognized. hard. For high optical density chromatic ink compositions and low light achromatic ink compositions, increasing the amount of resin particles in such ink compositions simply to increase friction fastness will reduce the texture of the resulting recording. I will do it. Here, it is presumed that one of the causes of the deterioration of the texture of the obtained recorded material is that the ratio of the resin particles and the pigment contained in the recorded material deviates from a predetermined range. On the other hand, in the recording method of the present embodiment, at least a part of the second composition and at least a part of the first composition overlap in this order of the second composition, the first composition, and the third composition, and at least a part of the first composition overlaps. By having a step of adhering a part of the first composition and at least a part of the third composition so as to overlap each other, a chromatic color ink composition having a high optical density or an achromatic color ink composition having a low brightness (first composition). By superimposing a low optical density chromatic color ink composition or a high brightness achromatic color ink composition on an object), a low optical density chromatic color ink composition or high brightness that makes it difficult to recognize color fading due to friction. Since the achromatic color ink composition of No. 1 is rubbed off first, the friction fastness (particularly, the dry friction fastness) is improved. In addition, a low optical density chromatic ink composition or a low brightness achromatic ink composition is overlaid with a low optical density chromatic ink composition or a high brightness achromatic ink composition to obtain a low optical density. In chromatic ink compositions and high-brightness achromatic ink compositions, the resin particles derived from the resin particles adhere well to the pigment and the fabric due to the fact that the content of the resin particles is relatively large with respect to the pigment. However, the friction fastness (particularly, wet friction fastness) becomes good.
Although the ratio of the resin particles to the pigment contained in the entire recorded material is within a predetermined range, the ratio of the resin particles is relatively high in the contact portion between the recorded material and the recording medium and the surface portion with respect to the outside of the recorded material. Since it exists, it is possible to obtain a recorded material having both texture and excellent frictional fastness. Further, the excellent frictional fastness here is excellent in both dry friction fastness and wet friction fastness. Here, the dry friction fastness is an evaluation result obtained by a drying test described in Examples described later, and is an index showing that the pigment adhering to the surface of the fabric is well covered with the resin derived from the resin particles. is there. That is, in the recording method of the present embodiment, since the proportion of the resin derived from the resin particles is relatively high on the surface portion of the recorded object with respect to the outside, the dry friction fastness is excellent. On the other hand, the wet friction fastness is an evaluation result obtained by a wet test described in Examples described later, and is an index showing that the adhesiveness between the fabric and the recorded material is strong. Therefore, the ink having a high resin solid content, which easily adheres to the cloth, comes into contact with the bottom of the cloth, so that the wet friction fastness is improved. That is, in the recording method of the present embodiment, since the proportion of the resin derived from the resin particles is relatively high in the contact portion between the recorded material and the recording medium, the dry friction fastness is excellent.

FIG. 1 is a flowchart showing an example of the inkjet recording method of the present embodiment. Hereinafter, each step will be described.

Pretreatment process (ST1)
The recording method of the present embodiment may include a pretreatment step of applying a pretreatment liquid containing any one of a polyvalent metal salt, a cationic polymer, and a cationic surfactant to the fabric. As a result, the dyeing property of the dye is further improved.

Examples of the method of applying the pretreatment liquid to the fabric include a method of immersing the fabric in the pretreatment liquid, a method of applying the pretreatment liquid with a roll coater or the like, and a method of injecting a pretreatment liquid such as an inkjet method or a spray method. Any method can be used.

The pretreatment liquid may contain any of a polyvalent metal salt, a cationic polymer, and a cationic surfactant. The content of these components in the pretreatment liquid can be appropriately set according to the type of fabric and the like, and is not particularly limited.

The cationic resin is not particularly limited, and examples thereof include a cationic polymer. From the viewpoint of more effectively and surely exerting the effect of the present invention, examples of the cationic polymer include polyallylamine resins such as polyethyleneimine, polydiallylamine and polyallylamine, alkylamine polymers, JP-A-59-20696, JP-A-59-. 33176, 59-33177, 59-155088, 60-11389, 60-49990, 60-83882, 60-109894, 62-198493, 63-49478. , 63-115780, 63-280681, 1-40371, 6-234268, 7-125411, 10-193776, and the like. A polymer having a quaternary ammonium base is preferably used. From the same viewpoint, the weight average molecular weight of these cationic polymers is preferably 5000 or more, and more preferably about 5000 to 100,000. The weight average molecular weight of the cationic polymer is measured by gel permeation chromatography using polystyrene as a standard material.

Among the cationic resins, amine-based resins are preferable because they have excellent image quality. Examples of the amine-based resin include cationic polyallylamine resins, polyamine resins, and polyamide resins. The polyallylamine resin, the polyamine resin, and the polyamide resin are resins having a polyallylamine structure, a polyamine structure, and a polyamide structure in the main skeleton of the polymer, respectively. The cationic resin is resin particles or a water-soluble one, and a water-soluble one is preferable. Cationic resin particles are treated as a flocculant.

The organic acid is not particularly limited, but is preferably a carboxylic acid, and examples thereof include maleic acid, acetic acid, phosphoric acid, oxalic acid, malonic acid, succinic acid, and citric acid. Of these, monovalent or divalent or higher carboxylic acids are preferable. By containing such a carboxylic acid, the aggregating effect of the polymer and the wax is further improved, and by extension, the color-developing property tends to be more excellent. The organic acid may be used alone or in combination of two or more.

The polyvalent metal salt is not particularly limited, but a polyvalent metal salt of an inorganic acid or a polyvalent metal salt of an organic acid is preferable from the viewpoint of more effectively and surely exerting the effect according to the present invention. Such polyvalent metal salts are not particularly limited, but are, for example, group 2 alkaline earth metals (for example, magnesium and calcium) in the periodic table, and transition metals of the third group in the periodic table (for example, lanterns). , Salts of earth metals (eg, aluminum) from Group 13 of the Periodic Table, and salts of lanthanides (eg, neodymium). Further, as the salts of these polyvalent metals, carboxylates (for example, formic acid, acetic acid, benzoate), sulfates, nitrates, chlorides, and thiocyanates are suitable. Among them, polyvalent metal salts include calcium or magnesium salts of carboxylic acids (artic acid, acetic acid, benzoate, etc.), calcium or magnesium salts of sulfuric acid, calcium or magnesium salts of nitrate, calcium chloride, magnesium chloride, etc. And one or more selected from the group consisting of calcium salt or magnesium salt of thiocyan acid are preferable. The polyvalent metal salt may be used alone or in combination of two or more.

The pretreatment agent may contain a paste. As the glue, starch substances such as corn and wheat; cellulosic substances such as carboxymethyl cellulose and hydroxymethyl cellulose; polysaccharides such as sodium alginate, arabia gum, locust bean gum, tranth gum, guar gum and tamarind seeds; proteins such as gelatin and casein. Natural water-soluble polymers such as tannin and lignin; Synthetic water-soluble polymers such as polyvinyl alcohol-based compounds, polyethylene oxide-based compounds, acrylic acid-based compounds, and maleic anhydride-based compounds can be mentioned.

The pretreatment agent may further contain components usually used in the pretreatment liquid in printing, such as water, an antioxidant, a preservative, a fungicide, a chelating agent, a pH adjuster, and a surfactant.

The recording method of the present embodiment may include a drying step of the pretreatment liquid for drying the pretreatment liquid applied to the fabric after the pretreatment liquid step. The pretreatment liquid may be dried naturally, but is preferably dried with heating from the viewpoint of improving the drying speed. When heating is involved in the drying step of the pretreatment liquid, the heating method is not particularly limited, and examples thereof include a heat press method, a normal pressure steam method, a high pressure steam method, and a thermofix method. Further, the heat source for heating is not limited to the following, and examples thereof include an infrared lamp.

The material constituting the fabric used in the recording method of the present embodiment is not particularly limited, and for example, natural fibers such as cotton, linen, wool and silk; synthetic of polypropylene, polyester, acetate, triacetate, polyamide, polyurethane and the like. Fiber: Examples thereof include biodegradable fibers such as polylactic acid, and blended fibers thereof may be used. As the cloth, the fibers listed above may be in any form such as a woven fabric, a knitted fabric, and a non-woven fabric. In particular, when a dye is used in the above-mentioned ink composition for inkjet printing, it is possible to use a cloth containing fibers (cotton, linen, rayon, etc.) containing cellulose as a main component from the viewpoint of dyeability. preferable.

The recording method of the present embodiment may be performed using a fabric that has been pretreated with the above-mentioned pretreatment liquid in advance. In this case, it may not be necessary to perform the pretreatment step.

Printing process (ST2)
In the recording method according to the present embodiment, the second composition, the first composition, and the third composition are mixed in this order with respect to the recording medium containing the above-mentioned cloth, in this order, at least a part of the second composition, and at least the first. It includes a step of adhering a part of one composition so as to overlap at least a part of the first composition and at least a part of the third composition (hereinafter, also referred to as "printing step"). Specifically, the ink droplets ejected by the inkjet recording method are attached to the cloth to form an image on the cloth. The inkjet recording method may be any method, and examples thereof include a charge deflection method, a continuous method, a piezo method, an onden mand method also called a bubble jet (registered trademark) method, and the like. Among these inkjet recording methods, a method using a piezo type inkjet recording device is particularly preferable.

The second composition, the first composition, and the third composition are overlapped in this order with at least a part of the second composition and at least a part of the first composition, and at least a part of the first composition and at least a first part. In order to attach a part of the composition so as to overlap with each other, a recording head in a recording device may be used as described later.

Heat treatment process (ST3)
The recording method of the present embodiment may include a heat treatment step of heat-treating the fabric on which the composition is imprinted. By performing the heat treatment step, the dye is satisfactorily dyed on the fiber. As the heat treatment step, a conventionally known method can be used, and examples thereof include an HT method (high temperature steaming method), an HP method (high pressure steaming method), and a thermosol method.

The temperature in the heat treatment step is preferably in the range of 90 to 110 ° C. from the viewpoint of improving the dyeing property of the coloring material on the cloth while reducing the damage to the cloth.

Cleaning process (ST4)
The recording method of the present embodiment may include a cleaning step of cleaning the recorded material. The cleaning step is preferably performed after the above heat treatment step, and the dye that has not been dyed on the fibers can be effectively removed. The washing step can be carried out using, for example, water, and a soaping treatment may be carried out if necessary.

Recording device The inkjet recording device of the present embodiment (hereinafter, also simply referred to as “recording device”) that records by the recording method of the present embodiment may be a recording device capable of recording by the recording method of the present embodiment. There is no particular limitation. Specifically, each nozzle array capable of ejecting the second composition, the first composition, and the third composition in this order so that at least a part of each of them overlaps on a recording medium containing a cloth. It is a recording apparatus for recording on a recording medium including a cloth, which comprises a recording head having the above.

As the recording device, either a serial type inkjet recording device or a line type inkjet recording device can be used. In any type of inkjet recording device, an inkjet head is mounted, and droplets of the ink composition are ejected from the nozzle hole of the recording head while changing the relative positional relationship between the recording medium and the inkjet head. A predetermined image can be formed by ejecting the first composition at a predetermined timing and at a predetermined volume (mass) and adhering the first composition to the recording surface of the recording medium. The recording device is a serial type inkjet recording device in that the number of scannings can be increased and the image quality and friction fastness can be easily improved by changing the amount of adhesion of the ink composition. More preferred.

In the recording head, a plurality of the nozzle rows for ejecting the second composition and the third composition are arranged so as to sandwich the plurality of nozzle rows for ejecting the first composition, and recording is performed on a recording medium. When the first composition, the second composition and the third composition can be simultaneously ejected to the recording medium when scanning the head, the effect of the present invention is more reliably achieved. Tend to be able to. When the nozzle rows are arranged in this way, the relative positional relationship between the recording medium and the inkjet head is changed while simultaneously ejecting the first composition, the second composition, and the third composition. Therefore, the second composition, the first composition, and the third composition can be attached to the recording medium in this order. For example, when a serial type inkjet recording device in which the nozzle rows are arranged perpendicularly to the main scanning direction of the recording head is used, the order in which the nozzle rows pass through a certain area on the recording medium is the second composition, the first. The composition becomes the composition, the third composition, or the third composition, the first composition, and the second composition, and the second composition, the first composition, and the third composition are attached in this order on the recording medium. It is possible to do.

FIG. 2 is a schematic view showing an example of the recording head of the present embodiment. A plurality of nozzle rows included in the recording head are arranged in the order of "1", "2", "3", and "4". The nozzle rows of "1", "2", "3", and "4" can be filled in the order of the second composition, the first composition, the first composition, and the third composition. Further, by ejecting the composition to the recording medium in this order for each nozzle row, the second composition, the first composition, and the third composition are recorded in this order, in which at least a part of each contains a cloth. It is possible to discharge so as to overlap on the medium. Here, the dots ejected from the nozzle rows of "1", "2", "3", and "4" are at a distance that overlaps with the dots ejected from the nozzle rows adjacent to each other at a certain duty or more. Set. The amount of 100% Duty adhered to the composition is 36 g / m ² , and it is preferably 40% or more, more preferably 80% or more, and further preferably 100% or more. In such a case, it is possible to more preferably discharge the second composition, the first composition, and the third composition in this order so that at least a part of each of them overlaps the recording medium containing the cloth. ..

Composition The first composition, the second composition, and the third composition used in the recording method of the present embodiment are all common in that they contain pigments and resin particles. However, the first composition is a chromatic ink having an optical density OD value of 1.3 or more, or an achromatic ink having a lightness L ^* of less than 25, and the second composition and the third composition. Each is a chromatic ink having an optical density OD value of less than 1.3, or an achromatic ink having a brightness L ^* of 25 or more. Hereinafter, when the components of the first composition, the second composition, and the third composition are described without distinguishing them, the first composition, the second composition, and the third are simply referred to as "composition". When it is described separately from the composition, it will be described as "first composition" and "second or third composition".

^{In this specification, lightness L *} , saturation C ^* , optical density OD value, and hue angle h are used as the physical characteristics of the composition, and a method for obtaining these will be described below.
First, in an inkjet printer, the recording head is filled with the composition. By the inkjet method using this inkjet printer, an image is formed by adhering the composition to a cloth of the same type as the recording medium used in the inkjet recording method of the present embodiment as a recording medium sample. In the image forming step, the resolution is 1440 × 720 dpi, the printing range is A4 size, and the composition is printed with a 10% to 100% Duty pattern (coating amount 36 g / m ² with 100% Duty). To form. Then, it is dried at 160 ° C. for 5 minutes to produce a recorded material in which an image is formed on the cloth.
Using a colorimeter, the brightness L ^* , saturation C ^* , optical density OD value and brightness L ^* , a ^* , b ^* of the recorded matter are measured, and the hue angle h is further determined. Here, the hue angle h is defined in the CIELAB color space as the hue angle h = tan ^-1 (b ^* / a ^* ) + 180 (when a ^* <0) or the hue angle h = tan ^-1 (when a * <0). It is ^{calculated by b *} / a ^* ) + 360 (when a ^* <0).

The first composition can be distinguished as cyan ink, magenta ink, yellow ink, black ink, white ink and the like. In particular, any of cyan ink, magenta ink, and black ink is preferable from the viewpoint of more reliably obtaining the effect of the present invention. Further, the second or third composition is preferably an ink composition having the same color as the first composition, or a colorless clear ink. However, when the ink composition has the same color as the first composition, the second or third composition is a chromatic ink having an optical density OD value of less than 1.3, or has a brightness L ^*. Since it is 25 or more achromatic inks, it can be distinguished as light-colored cyan ink, magenta ink, yellow ink, black ink, white ink, and the like.

Here, the "chromatic color ink" ^{means an ink having a saturation C *} of more than 15. The "achromatic ink" ^{means an ink having a saturation C *} of 15 or less, and includes so-called light-color ink.
The “black ink” means an achromatic ink having ^{a lightness L * of less than 25 and a composition having a saturation C *} of 15 or less.
The "light-colored black ink" means ^{an achromatic ink having a lightness L *} of 25 or more and a saturation C ^* of 15 or less.
The “cyan ink” means a composition which is a chromatic ink having a hue angle h of 230 ° to 280 ° and an optical density OD value of 1.3 or more.
The “magenta ink” means a composition which is a chromatic ink having a hue angle h of 330 ° to 360 ° and an optical density OD value of 1.3 or more.
Each light-colored second or third composition is a chromatic ink having a difference in hue angle h from each first composition within 30 ° and an optical density OD value of less than 1.3. means. The difference in hue angle h is preferably within 20 °, more preferably within 10 °.

The second composition and the second or third composition are preferably the same from each other from the viewpoint of their manufacturability and the efficiency of the printing process.

Pigment The composition of this embodiment contains a pigment. The pigment may be contained in the composition as particles containing the pigment. The pigment is not particularly limited, and examples thereof include the following pigments.

The pigment used for the cyan ink is not particularly limited, but for example, C.I. I. Pigment Blue 1, 2, 3, 15, 15: 1, 15: 2, 15: 3, 15:34, 15: 4, 16, 18, 22, 25, 60, 65, 66, C.I. I. Bat Blue 4, 60, and C.I. I. Direct blue 199 can be mentioned.

The pigment used in the magenta ink is not particularly limited, but for example, C.I. I. Pigment Red 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 21, 22, 23, 30, 31, 32, 37, 38, 40, 41, 42, 48: 2, 48: 5, 57: 1, 88, 112, 114, 122, 123, 144, 146, 149, 150, 166, 168, 170, 171 and 175, 176, 177, 178, 179, 184, 185, 187, 202, 209, 219, 224, 245, or C.I. I. Pigment Violet 19, 23, 32, 33, 36, 38, 43, 50.

The pigment used for the black ink is not particularly limited, and examples thereof include carbon black. The specific trade name of carbon black is not particularly limited, but for example, Bonjetblack CW-1 (manufactured by Orient Chemical Industry Co., Ltd.), No. 2300, No. 900, MCF88, No. 33, No. 40, No. 45, No. 52, MA7, MA8, MA100, No. 2200B, etc. (above, manufactured by Mitsubishi Chemical Corporation), Raven 5750, Raven 5250, Raven 5000, Raven 3500, Raven 1255, Raven 700, etc. Rega1 330R, Rega1 660R, Mogul L, Monarch 700, Monarch 800, Monarch 880, Monarch 900, Monarch 1000, Monarch 1100, Monarch 1300, Monarch 1400, etc. , Color Black FW2, Color Black FW2V, Color Black FW18, Color Black FW200, Color B1ack S150, Color Black S160, Color Black Examples thereof include Black 4A and Special Black 4 (all manufactured by Degussa).

The pigment used for the yellow ink is not particularly limited, and for example, EMACOL SF Yellow J701F (trade name manufactured by Sanyo Dye Co., Ltd.), C.I. I. Pigment Yellow 1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 16, 17, 24, 34, 35, 37, 53, 55, 65, 73, 74, 75, 81, 83, 93, 94, 95, 97, 98, 99, 108, 109, 110, 113, 114, 117, 120, 124, 128, 129, 133, 138, 139, 147, 151, 153, 154, 167, 172, 180 can be mentioned.

The pigment used in the white ink is not particularly limited, but for example, C.I. I. Pigment White 6, 18, 21, titanium oxide, zinc oxide, zinc sulfide, antimony oxide, zirconium oxide, white hollow resin particles and polymer particles.

The pigments other than the above are not particularly limited, but for example, C.I. I. Pigment Green 7,10, C.I. I. Pigment Brown 3, 5, 25, 26, C.I. I. Pigment Orange 1,2,5,7,13,14,15,16,24,34,36,38,40,43,63.

The coloring composition and the second or third composition preferably contain pigments of the same color from each other from the viewpoint of obtaining better friction fastness.

In the first composition, the content of the pigment is preferably 2.0% by mass or more, more preferably 2.0 to 10% by mass, and further, in terms of solid content, with respect to the total amount of the first composition. It is preferably 2.0 to 5.0% by mass. When the content of the pigment particles is within the above range, the first composition can be a chromatic ink having an optical density OD value of 1.3 or more or an achromatic ink having a lightness L of less than 25. , There is a tendency to obtain a record of the desired saturation C.

In the second or third composition, the content of the pigment is preferably less than 2.0% by mass in terms of solid content, more preferably 0.1 to 1 with respect to the total amount of the second or third composition. It is 7.7% by mass, more preferably 0.4 to 1.5% by mass. When the content of the pigment particles is within the above range, the second or third composition is a chromatic ink having an optical density OD value of less than 1.3 or an achromatic ink having a lightness L of 25 or more. It is possible to obtain a record material having a desired saturation C.

The content of the pigment in the first composition is preferably higher than the content of the pigment in the second or third composition.

Resin particles The composition of the present embodiment contains resin particles. Resin particles are particles containing resin, and are also referred to as "resin dispersion" or "resin emulsion".

The resin particles of the present embodiment may be self-dispersing resin particles into which a hydrophilic component necessary for stable dispersion in water has been introduced, or may be water-dispersible by using an external emulsifier. There may be. However, it is preferable that the resin particles are self-emulsifying resin dispersions from the viewpoint of not inhibiting the reaction with the polyvalent metal compound that can be contained in the recording medium.

Examples of the resin include urethane-based resin, polycarbonate-based resin, (meth) acrylic-based resin, styrene-based resin, silicone-based resin, styrene-acrylic resin, fluorene-based resin, polyolefin-based resin, rosin-modified resin, and terpen-based resin. Examples thereof include polyester resins, polyamide resins, epoxy resins, vinyl chloride resins, vinyl chloride-vinyl acetate copolymers, and ethylene vinyl acetate resins. These resins may be used alone or in combination of two or more. Among these, the resin particles are preferably urethane-based resin, polycarbonate-based resin, (meth) acrylic-based resin, and styrene resin, more preferably urethane-based resin and (meth) acrylic-based resin, and the urethane-based resin is polycarbonate-based. It is more preferably a urethane resin. By using such a resin, the frictional fastness can be improved.

Urethane-based resin is a resin having a urethane bond in the molecule. The urethane-based resin is preferably an anionic urethane-based resin having an anionic functional group such as a carboxy group, a sulfo group, or a hydroxy group from the viewpoint of storage stability of the ink.

Urethane-based resins include polyether-type urethane-based resins containing ether bonds in the main chain, polyester-type urethane-based resins containing ester bonds in the main chain, and polycarbonate-type urethane-based resins containing carbonate bonds in the main chain, in addition to urethane bonds. Can be mentioned. A plurality of types of these urethane-based resins can be used in combination.

Commercially available urethane-based resins include ETERNAL COLL UW-1501F, UW-5002 (above, Ube Industries, Ltd. trade name), Takelac WS-5000, W-6061, W-6110, WS-5984, WS-5100 (above). , Mitsui Chemicals Co., Ltd.), Permarin UA-150, UA-200, Ube Industries UX-390 (above, Sanyo Kasei Kogyo Co., Ltd. product name), Hydran WLS-210 (DIC Co., Ltd. product name).

The polycarbonate resin is a resin having a polycarbonate bond in the molecule. When the urethane resin is not used, it is preferable to use a polycarbonate resin instead.

Examples of commercially available (meth) acrylic resins include mobile resins 966A and 6760 (trade names manufactured by Japan Coating Resin Co., Ltd.), which are acrylic resins.

The (meth) acrylic resin means a resin having a (meth) acrylic skeleton. The (meth) acrylic resin is not particularly limited, and is, for example, a polymer of a (meth) acrylic monomer such as (meth) acrylic acid or (meth) acrylic acid ester, or a (meth) acrylic simple resin. Examples thereof include a copolymer of a dimer and another monomer. Examples of other monomers include vinyl-based monomers such as styrene. In addition, in this specification, "(meth) acrylic" is a concept including both "methacryl" and "acrylic".

Commercially available silicone-based resins include POLON-MF014, POLON-MF-18T, POLON-MF-33, KM-2002-T (above, Shin-Etsu Silicone Co., Ltd. trade name), WACKER FINISH WR1100, NP2406, POWERSOFT FE 55. , TS2406 (above, trade name manufactured by Asahi Kasei Co., Ltd.).

The acid value of the resin contained in the resin particles in the second or third composition is not particularly limited, but is preferably 1 to 300 KOH mg / g, more preferably 10 to 200 KOH mg / g, and further preferably 20 to 20 to 200 KOH mg / g. It is 100 KOH mg / g.

In the composition, the content of the resin particles is preferably 1.0% by mass or more, more preferably 2.0 to 20% by mass, and further preferably 3 in terms of solid content with respect to the total amount of the composition. .0 to 10% by mass. When the content of the resin particles is within the above range, it tends to be possible to obtain a record having excellent texture and excellent frictional fastness.

The content of the resin particles in the first composition is preferably smaller than the content of the resin particles in the second or third composition. The higher the content of the resin particles in the second or third composition, the better the friction fastness tends to be.

The mass ratio of the resin particles to the pigment in the first composition is preferably smaller than the mass ratio of the resin particles to the pigment in the second or third composition. As a result, it tends to be possible to obtain a record having excellent texture and excellent frictional fastness.

Lubricants The composition of the present embodiment preferably further contains a lubricant. By containing a lubricant, the pigment on the fabric is covered with the resin, so that the slip property is enhanced and a recorded material having excellent friction fastness tends to be obtained.

Lubricants include, but are not limited to, calcium stearate, ammonium stearate, microcrystal wax, polyethylene wax, paraffin wax, and polyethylene-paraffin wax. Examples of commercially available products include Hi-Tech E-9015 (trade name manufactured by Toho Chemical Industry Co., Ltd.), AQUACER497 (trade name manufactured by BYK), and Michel Emulsion 85250 (trade name manufactured by Michelman). Of these, polyethylene wax is more preferred. These lubricants may be used alone or in combination of two or more.

In the composition, the content of the lubricant is more preferably 0.1 to 10% by mass, still more preferably 0.5 to 2.0% by mass, based on the total amount of the composition. When the content of the lubricant is within the above range, it tends to be possible to obtain a recorded material having better friction fastness.

Water Examples of the water of the present embodiment include pure water such as ion-exchanged water, ultra-filtered water, reverse osmosis water, and distilled water, and ultrapure water from which ionic impurities have been removed as much as possible. Be done. Further, when water sterilized by irradiation with ultraviolet rays or addition of hydrogen peroxide or the like is used, it is possible to prevent the growth of mold and bacteria when the aggregated liquid is stored for a long period of time. This tends to further improve storage stability.

Organic Solvent The composition of the present embodiment preferably further contains an organic solvent. The organic solvent is not particularly limited as long as it can be used together with water.

The type of the organic solvent is not particularly limited, and examples thereof include cyclic nitrogen compounds, aprotic polar solvents, monoalcohols, alkyl polyols, and glycol ethers.

The aprotic polar solvent is not particularly limited, and examples thereof include a cyclic ketone compound, a chain ketone compound, and a chain nitrogen compound. Typical examples of the cyclic nitrogen compound and the aprotic polar solvent include solvents of pyrrolidones, imidazolidinones, sulfoxides, lactones, amide ethers and imidazoles. The pyrrolidones are not particularly limited as long as they have a pyrrolidone skeleton, and examples thereof include 2-pyrrolidone, N-alkyl-2-pyrrolidone, and 1-alkyl-2-pyrrolidone. Examples of imidazolidinones include 1,3-dimethyl-2-imidazolidinone, examples of sulfoxides include, for example, dimethyl sulfoxide, examples of lactones include, for example, γ-butyrolactone, and examples of imidazoles include, for example, imidazole, 1-. Examples include methylimidazole, 2-methylimidazole, and 1,2-dimethylimidazole.

The monoalcohol is not particularly limited, but is, for example, methanol, ethanol, n-propyl alcohol, iso-propyl alcohol, n-butanol, 2-butanol, tert-butanol, iso-butanol, n-pentanol, 2-pen. Examples include tanol, 3-pentanol, and tert-pentanol.

The alkyl polyol is not particularly limited, but for example, glycerin, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol (1,2-propanediol), dipropylene glycol, trimethylolpropane, 1,3-propylene glycol (1). , 3-Propanediol), Isobutylene Glycol (2-Methyl-1,2-Propanediol), 1,2-Butanediol, 1,3-Butanediol, 1,4-Butanediol, 2-Buten-1,4 -Diol, 1,2-pentanediol, 1,5-pentanediol, 2-methyl-2,4-pentanediol, 1,2-hexanediol, 1,6-hexanediol, 2-ethyl-1,3- Includes hexanediol, 1,7-heptanediol, and 1,8-octanediol. Among these, the organic solvent in the composition preferably contains any one of 1,3-propanediol, 1,4-butanediol, and 1,5-pentanediol from the viewpoint of obtaining excellent storage stability. It is also preferable to include trimethylolpropane.

The organic solvent is preferably water-soluble. The term "water-soluble" means that water and an organic solvent are mixed at room temperature at a mass ratio of 1: 1 and stirred, and then separated or clouded.

The glycol ether is not particularly limited, and examples thereof include glycol diethers and glycol monoethers.

Specific examples of glycol diether are not particularly limited, but ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol ethyl methyl ether, diethylene glycol dibutyl ether, triethylene glycol dimethyl ether, and tri. Ethylene glycol diethyl ether, triethylene glycol dibutyl ether, tetraethylene glycol dimethyl ether, tetraethylene glycol diethyl ether, tetraethylene glycol dibutyl ether, propylene glycol dimethyl ether, propylene glycol diethyl ether, dipropylene glycol dimethyl ether, and dipropylene glycol diethyl ether Can be mentioned.

Ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol mono n-propyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monobutyl ether, ethylene glycol monohexyl ether, ethylene glycol monophenyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether , Diethylene glycol monobutyl ether Triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol monobutyl ether, tetraethylene glycol monomethyl ether, tetraethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, dipropylene Glycol monomethyl ether and dipropylene glycol monoethyl ether can be mentioned.

In the composition, the content of the organic solvent is more preferably 0.1 to 50% by mass, still more preferably 0.5 to 35% by mass, and particularly preferably 1. It is 0 to 20% by mass. When the content of the organic solvent is within the above range, the drying property of the composition adhered to the recording medium tends to be further improved, and the recorded material having more excellent frictional fastness tends to be obtained. ..

The content of the coloring composition, especially when it contains trimethylolpropane, is preferably less than the content of trimethylolpropane in the second or third composition. In particular, when the amount of the pigment contained in the second or third composition is smaller than the amount of the pigment contained in the first composition, the viscosity of the second or third composition tends to be low, and the discharge stability May be inferior. On the other hand, by containing trimethylolpropane in the above relationship, the discharge stability tends to be improved.

From the viewpoint of glossiness, the surfactant composition preferably further contains a surfactant. The surfactant is not particularly limited, and examples thereof include an acetylene glycol-based surfactant, a fluorine-based surfactant, and a silicone-based surfactant.

The acetylene glycol-based surfactant is not particularly limited, but is 2,4,7,9-tetramethyl-5-decine-4,7-diol and 2,4,7,9-tetramethyl-5-decine-. One selected from alkylene oxide adducts of 4,7-diol and alkylene oxide adducts of 2,4-dimethyl-5-decine-4-ol and 2,4-dimethyl-5-decine-4-ol. The above is preferable. Commercially available products of acetylene glycol-based surfactants are not particularly limited, but for example, E series such as Orfin 104 series and Orfin E1010 (trade name manufactured by Air Products Japan, Inc.), Surfinol 104, 465, 61, DF110D (trade name manufactured by Nissin Chemical Industry CO., Ltd.) can be mentioned. The acetylene glycol-based surfactant may be used alone or in combination of two or more.

The fluorine-based surfactant is not particularly limited, and is, for example, perfluoroalkyl sulfonate, perfluoroalkyl carboxylate, perfluoroalkyl phosphate, perfluoroalkyl ethylene oxide adduct, perfluoroalkyl betaine, and the like. Perfluoroalkylamine oxide compounds can be mentioned. Commercially available products of fluorine-based surfactants are not particularly limited, but for example, S-144, S-145 (trade name, manufactured by Asahi Glass Co., Ltd.); FC-170C, FC-430, Florard-FC4430 (the above products). Name: FSO, FSO-100, FSN, FSN-100, FS-300 (trade name, manufactured by DuPont); FT-250, 251 (trade name, manufactured by Neos Co., Ltd.) Can be mentioned. The fluorine-based surfactant may be used alone or in combination of two or more.

The silicone-based surfactant is not particularly limited, and examples thereof include polysiloxane-based compounds and polyether-modified organosiloxanes. The commercially available silicone-based surfactant is not particularly limited, but specifically, SAG503A (trade name, manufactured by Shin-Etsu Chemical Co., Ltd.), BYK-306, BYK-307, BYK-333, BYK-341, BYK-345, BYK-346, BYK-347, BYK-348, BYK-349 (trade name, manufactured by Big Chemie), KF-351A, KF-352A, KF-353, KF-354L, KF-355A, KF -615A, KF-945, KF-640, KF-642, KF-643, KF-6020, X-22-4515, KF-6011, KF-6012, KF-6015, KF-6017 (trade names, Shin-Etsu) (Made by Chemical Co., Ltd.) and the like. The silicone-based surfactant may be used alone or in combination of two or more.

In the composition, the content of the surfactant is more preferably 0.01 to 3.0% by mass, still more preferably 0.05 to 2.0% by mass, based on the total amount of the composition. Particularly preferably, it is 0.1 to 1.0% by mass. When the content of the organic solvent is within the above range, the wettability of the composition adhered to the recording medium tends to be further improved.

Other components of the composition include softeners, solubilizers, viscosity regulators, pH regulators such as triethanolamine, moisturizers such as glycerin, antioxidants, Proxel XL2 (trade name manufactured by Arch Chemicals), etc. Appropriately contain various additives such as antifungal / preservatives, antifungal agents, anticorrosive agents, and chelating agents for capturing metal ions that affect dispersion (for example, sodium ethylenediaminetetraacetate). You can also. Among the above, those which are also organic solvents such as glycerin are also included in the above-mentioned organic solvents.

Hereinafter, the present invention will be specifically described with reference to Examples. The present invention is not limited to the following examples. Hereinafter, "part" and "%" are based on mass unless otherwise specified.

[Materials for the first composition and the second or third composition]
The main materials for the first composition and the second or third composition used in the following Examples and Comparative Examples are as follows.
Pigment Cyan Pigment (CI Pigment Blue 15: 3)
Magenta Pigment (CI Pigment Red 122)
Black pigment (carbon black)
Resin particles Urethane-based resin (trade name "ETERNACOLL UW-1501F" manufactured by Ube Kosan Co., Ltd., solid content: 30% by mass, aqueous polycarbonate-based polyurethane resin dispersion)
Acrylic resin (trade name "Mobile 966A" manufactured by Japan Coating Resin Co., Ltd., solid content: 45% by mass, aqueous styrene-acrylic resin dispersion)
Lubricants High melting point polyethylene wax (trade name "HITEC E-9015" manufactured by Toho Chemical Industry Co., Ltd., solid content: 40% by mass, melting point: 137 ° C)
Organic Solvent Glycerin Triethylene Glycol Propylene Glycol Trimethylolpropane Triethylene Glycol Monobutyl Ether Surfactant BYK348 (trade name manufactured by Big Chemie Japan, silicone-based surfactant)
Water Ion exchange water

Preparation of First Composition and Second or Third Composition The pigments listed in Tables 1 and 2 below and the styrene acrylic pigment dispersant resin not listed in the table are used as pigments: pigment dispersant resins. A pigment dispersion was prepared by mixing with water at a mass ratio of 2: 1 and stirring with a bead mill. The remaining pigment dispersions were appropriately used to mix the remaining materials with the compositions shown in Tables 1 and 2, and the mixture was sufficiently stirred to obtain a first composition and a second or third composition. In Tables 1 and 2 below, the unit of numerical value is mass% of solid content except for organic solvent and water, the unit of numerical value of organic solvent is mass%, and the total composition of water is 100. It is contained so as to be 0.0% by mass.

Pretreatment A white cotton broad cloth as a cloth is padded with a pretreatment agent consisting of 6.7 parts by mass of Unisense 104L (trade name, water-soluble cationic polymer manufactured by Senka Co., Ltd.) and 93.3 parts by mass of water. By the method, padding was performed at a drawing rate of 70%. Then, it was dried at 120 degreeC for 5 minutes, and the pretreated cloth was obtained.

Preparation of recorded material 1
In an inkjet printer (trade name "SC-F2000" manufactured by Seiko Epson Corporation), the recording head was filled with the first composition and the second or third composition shown in Tables 3 and 4 below. By the inkjet method using this inkjet printer, the first composition or the second or third composition was adhered to the pretreated fabric to form an image. In the image forming step, the resolution is 1440 × 720 dpi, the print range is A4 size, and the first composition or the second or third composition is 10% to 100% Duty pattern (coating amount 36 g with 100% Duty). An image was formed by printing / m ^2). Then, using a high-temperature steamer (trade name "HT-3-550 type" manufactured by Tsujii Dyeing Machinery Co., Ltd.), it was dried at 160 ° C. for 5 minutes to produce a recorded material in which an image was formed on the pretreated fabric. ..

Color measurement Using a spectrophotometer manufactured by Gretag, the brightness L ^* , saturation C ^* , optical density OD value, a ^* , and b ^* of each recorded material obtained in Preparation 1 of the above recorded material are measured. Further, the hue angle h was obtained. Here, the hue angle h is defined in the CIELAB color space as the hue angle h = tan ^-1 (b ^* / a ^* ) + 180 (when a ^* <0) or the hue angle h = tan ^-1 (when a * <0). It was obtained by b ^* / a ^* ) + 360 (when a ^* <0).

Preparation of recorded material 2
In an inkjet printer (trade name "SC-F2000" manufactured by Seiko Epson Corporation), as shown in FIG. 1, No. 2. No. 3, No. The recording heads in which the nozzle rows were formed in the order of 4 were filled with the first composition and the second or third composition shown in Tables 3 to 5 below.
The compositions A-1 to A-10 correspond to the first composition, and the compositions B-1 to B-10 correspond to the second composition or the third composition. The dots formed by the composition are formed by the reciprocating motion of the carriage, and the outward path is No. 1, No. 2. No. 3, No. In the order of 4, the return route is No. 4, No. 3, No. 2. No. It is stacked in the order of 1. For example, No. 2. No. No. 3 was filled with the first composition. 1, No. By filling No. 4 with the second composition or the third composition, the second composition, the first composition, and the third composition are stacked in this order.
By the inkjet method using this inkjet printer, each composition was adhered to the pretreated fabric to form an image. In the image forming step, an image was formed by setting the resolution to 1440 × 720 dpi, setting the printing range to A4 size, and printing a 100% Duty pattern (coating amount 36 g / m ² with 100% Duty). The coating amount of each composition is the same.
Then, using a high-temperature steamer (trade name "HT-3-550 type" manufactured by Tsujii Dyeing Machinery Co., Ltd.), it was dried at 160 ° C. for 5 minutes to produce a recorded material in which an image was formed on the pretreated fabric. .. Here, No. 1, No. 2. No. 3, No. The dots ejected from the nozzle rows of No. 4 are set at a distance that overlaps the dots ejected from the nozzle rows adjacent to each other in the above Duty. It should be noted that at least a part of the dots overlaps from the duty of 40% or more, and the same evaluation tendency can be obtained. In the "overlapping dots" described in Tables 3 to 5 below, the notation "upper and lower" indicates that the dots of the second or third composition overlap above and below the dots of the first composition. The notation "none" indicates that the dots of the second or third composition do not overlap the dots of the first composition at all, and the notation "top" or "bottom" colors the recording medium. It indicates that the dots of the second or third composition overlap only above or below the dots of the coloring composition when the dots of the object are placed below.

Friction fastness Each of the recorded materials obtained in Preparation 2 of the above recorded materials was subjected to a dyeing fastness test against friction using a type I (clock meter) tester according to the method specified in ISO-105 X12. Friction fastness is evaluated by two indexes, dry friction fastness and wet friction fastness, dry friction fastness is specified in ISO-105 X12, and wet friction fastness is specified in ISO-105 X12. The test was carried out according to the wet test, and each was evaluated using a contaminated gray scale according to the following evaluation criteria. The evaluation result means that the frictional fastness is excellent in the order of C, B, and A. When the evaluation results are A and B, it can be said that the effect of the present invention is obtained.
Evaluation criteria for dry friction fastness A: 3-4 grade or higher specified in ISO-105 X12 B: 3rd grade specified in ISO-105 X12 C: 2-3 grade or lower specified in ISO-105 X12 Wet friction fastness Evaluation criteria A: 2-3 grades or higher specified in ISO-105 X12 B: 2nd grade specified in ISO-105 X12 C: 1-2 grades or lower specified in ISO-105 X12

Texture Each of the recorded materials obtained in Preparation 2 of the above-mentioned recorded material was sensory-evaluated by a specific evaluator according to the following criteria to evaluate the texture. The evaluation result means that the texture is excellent in the order of C, B, and A. When the evaluation results are A and B, it can be said that the effect of the present invention is obtained.
Evaluation criteria for texture A: No soft and stiff feel is observed.
B: Slightly hard and slightly stiff.
C: There is a noticeably stiff feel.

In Example 53, No. 2 shown in FIG. 1, No. 2. No. 3, No. The recording head in which the nozzle rows were formed in the order of 4 was filled in the order of the second composition B-1, the first composition A-1, the first composition A-1, and the third composition B-2.

Evaluation Results The recorded materials of each example prepared by using the recording method of the present embodiment have evaluation results of dry friction fastness, wet friction fastness, and texture of B evaluation or higher, that is, B evaluation or A evaluation. It was found that both excellent frictional fastness and excellent texture were achieved.

Claims (15)

The second composition, the first composition, and the third composition are overlapped with respect to the recording medium containing the cloth in this order, at least a part of the second composition and at least a part of the first composition. A step of adhering at least a part of the first composition and at least a part of the third composition so as to overlap with each other.
Each of the first composition, the second composition and the third composition contains a pigment and resin particles.
The first composition is a chromatic ink having an optical density OD value of 1.3 or more, or an achromatic ink having a lightness L of less than 25.
Each of the second composition and the third composition is a chromatic ink having an optical density OD value of less than 1.3, or an achromatic ink having a lightness L of 25 or more.
The optical density OD value and the lightness L are 36 g / m ² of the recording medium sample containing the cloth, and the optics of the recorded product to which the first composition, the second composition, or the third composition is attached. Concentration OD value and lightness L,
Inkjet recording method. The second composition and the third composition are the same as each other.
The inkjet recording method according to claim 1. The first composition is at least one of cyan ink, magenta ink, and black ink.
The inkjet recording method according to claim 1 or 2. The difference between the hue angle h of the first composition and the hue angle h of the second composition and the hue angle h of the third composition is 30 ° or less.
The hue angle h is the hue angle h of the recorded product to which the first composition, the second composition, or the third composition is attached at ^{36 g / m 2 with respect to the recording medium sample containing the cloth.}
The inkjet recording method according to any one of claims 1 to 3. Each of the first composition, the second composition and the third composition contains the pigment having the same color as each other.
The inkjet recording method according to any one of claims 1 to 4. In each of the first composition, the second composition and the third composition, the content of the resin particles is the total amount of each of the first composition, the second composition and the third composition. On the other hand, it is 3.0 to 10% by mass.
The inkjet recording method according to any one of claims 1 to 5. The mass ratio of the resin particles to the pigment in the first composition is smaller than the mass ratio of the resin particles to the pigment in each of the second composition and the third composition.
The inkjet recording method according to any one of claims 1 to 6. The content of the pigment in the first composition is higher than the content of the pigment in each of the second composition and the third composition.
The content of the resin particles in the first composition is smaller than the content of the resin particles in each of the second composition and the third composition.
The inkjet recording method according to any one of claims 1 to 7. The acid value of the resin contained in the resin particles in each of the second composition and the third composition is 20 to 100 KOHmg / g.
The inkjet recording method according to any one of claims 1 to 8. The fabric is treated with any of a polyvalent metal salt, a cationic polymer, and a cationic surfactant.
The inkjet recording method according to any one of claims 1 to 9. The resin contained in the resin particles in each of the first composition, the second composition and the third composition is a urethane resin and / or a (meth) acrylic resin.
The inkjet recording method according to any one of claims 1 to 10. Each of the first composition, the second composition and the third composition further contains a lubricant.
The inkjet recording method according to any one of claims 1 to 11. Each of the first composition, the second composition and the third composition further contains trimethylolpropane.
The content of the trimethylolpropane in the first composition is smaller than the content of the trimethylolpropane in each of the second composition and the third composition.
The inkjet recording method according to any one of claims 1 to 12. The second composition, the first composition, and the third composition are overlapped with at least a part of the second composition and at least a part of the first composition in this order, and at least a part of the first composition. A recording head having each nozzle row capable of ejecting on a recording medium containing a cloth so that at least a part of the third composition overlaps is provided.
Each of the first composition, the second composition and the third composition contains pigments and resin particles.
The first composition is a chromatic ink having an optical density OD value of less than 1.3, or an achromatic ink having a lightness L of 25 or more.
Each of the second composition and the third composition is a chromatic ink having an optical density OD value of 1.3 or more, or an achromatic ink having a lightness L of less than 25.
The optical density OD value and the brightness L are the optical density OD value and the brightness L of the recorded material adhered to the recording medium sample containing the cloth at 36 g / m ^2.
An inkjet recording device for recording on a recording medium containing a cloth. In the recording head, a plurality of the nozzle rows for discharging the second composition and the third composition are arranged so as to sandwich the plurality of nozzle rows for discharging the first composition.
When scanning the recording head with respect to the recording medium, the first composition, the second composition and the third composition can be simultaneously discharged to the recording medium.
The inkjet recording apparatus according to claim 14.