Composition set and inkjet recording method

Abstract

To provide a set of compositions that can achieve better friction resistance while also obtaining good color development and texture. [Solution] A composition set according to one embodiment of the present invention comprises a white inkjet ink printing composition, a transparent inkjet ink printing composition, and a processing liquid composition, wherein the white inkjet ink printing composition contains titanium dioxide pigment and water, the transparent inkjet ink printing composition contains resin particles and water, and the processing liquid composition contains particles containing organopolysiloxane and water.

Description

Technical Field

[0001] The present invention relates to a composition set and an inkjet recording method.

Background Art

[0002] The inkjet method is applied not only to recording images on paper and the like but also to printing on fabrics. In particular, in inkjet printing using pigments, various studies have been made to improve the color development and rubbing fastness of the images printed on fabrics.

[0003] For example, Patent Document 1 describes an overcoat liquid for inkjet printing for use in combination with pigment ink.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, there is still room for improvement in rubbing fastness, and there is a problem in obtaining good color development and texture while obtaining better rubbing fastness.

Means for Solving the Problems

[0006] One aspect of the composition set according to the present invention is a composition set including a printing white inkjet ink composition, a printing transparent inkjet ink composition, and a treatment liquid composition, wherein the printing white inkjet ink composition contains titanium oxide pigment and water, the printing transparent inkjet ink composition contains resin particles and water, The aforementioned processing liquid composition contains particles containing organopolysiloxane and water.

[0007] One aspect of the inkjet recording method according to the present invention is: An inkjet recording method using the composition set described in one embodiment, The process involves a white inkjet ink application step, in which the aforementioned white inkjet ink composition is applied to the fabric by an inkjet method, The process involves applying the processing liquid composition to the area of ​​the fabric to which the printed white inkjet ink composition has been applied, and The method includes a transparent ink application step of applying the transparent ink printing ink composition to an area of ​​the fabric to which the white ink printing ink composition has been applied. [Brief explanation of the drawing]

[0008] [Figure 1] A perspective view of a serial printer. [Figure 2] A schematic diagram showing an example of the nozzle row arrangement of an inkjet head. [Figure 3] Schematic side view of a line printer. [Figure 4] Table 1 shows the composition sets for each example and the evaluation results. [Figure 5] Table 2 shows the composition sets for each example and the evaluation results. [Modes for carrying out the invention]

[0009] The embodiments of the present invention will be described below. The embodiments described below are examples of the present invention. The present invention is not limited in any way to the embodiments described below. This also includes various modified forms implemented without altering the gist of the invention. Note that not all of the configurations described below are necessarily essential to the present invention.

[0010] In this specification, a numerical range represented by "~" means a range that includes the numbers written before and after "~" as the lower and upper limits, respectively. In this specification, "(meth)acrylic" means acrylic or methacrylic, and "(meth)acrylate" means acrylate or methacrylate. In this specification, "printing" refers to recording / printing ink onto a recording medium, including fabric, and is also called "printing." Furthermore, the recording medium after printing is referred to as a "printed material" or "printed material."

[0011] 1. Composition Set A composition set according to one embodiment of the present invention comprises a white inkjet ink composition for printing, a transparent inkjet ink composition for printing, and a processing liquid composition, wherein the white inkjet ink composition for printing contains titanium dioxide pigment and water, the transparent inkjet ink composition for printing contains resin particles and water, and the processing liquid composition contains particles containing organopolysiloxane and water.

[0012] White inkjet ink compositions for textile printing (hereinafter also referred to as "white ink") sometimes contain a relatively large amount of pigment to improve the opacity of the substrate. On the other hand, when a large amount of pigment is included, the friction fastness tends to be poor. For this reason, it is conceivable to include a large amount of resin particles in the white ink, but when the amount of solids in the ink increases, the reliability of inkjet ejection tends to decrease, and the amount of solids cannot be easily increased. Furthermore, when a large amount of resin particles is included in the white ink, it tends to be difficult to achieve a good texture in the printed material. Thus, in inkjet textile printing using white ink, it is difficult to achieve a balance between color development, friction fastness, and texture.

[0013] In this regard, it is conceivable to use a transparent inkjet ink composition containing resin particles (hereinafter also referred to as "clear ink") to achieve functional separation. However, simply using clear ink did not provide sufficient friction fastness, and there was still room for improvement. Specifically, it was found that while using clear ink tends to make the coating film itself tougher, the white ink and clear ink layers tend to peel off from the interface with the fabric, resulting in particularly poor dry friction fastness. This is presumed to be because, in addition to the white ink, which tends to adhere in large quantities, the clear ink also needs to be applied, making the ink coating layer thicker and more prone to peeling.

[0014] Furthermore, by using a treatment solution containing particles containing organopolysiloxane, the coefficient of friction on the surface of the printed material is reduced and its slipperiness is improved, thereby suppressing peeling of the ink coating layer and improving friction fastness (especially dry friction fastness). In addition, the improved slipperiness of the ink coating surface and the softening of the coating itself due to the presence of organopolysiloxane-containing particles in the resin film help to maintain a good texture for the printed material.

[0015] Therefore, according to the composition set of this embodiment, it is possible to obtain good color development and texture while obtaining better friction fastness.

[0016] The following describes each composition in the composition set according to this embodiment. Furthermore, the "composition set" according to this embodiment may be any combination of a textile inkjet ink composition and a processing liquid composition used together for recording, and is not limited to cases where they are manufactured and sold as an integrated unit. For example, even if they are manufactured and sold independently. If the combination is intended to be used in conjunction with other items, or if the combination is substantially encouraged, then it is included in the set.

[0017] 1.1 White inkjet ink composition for textile printing The composition set according to this embodiment comprises a white inkjet ink composition for textile printing, which contains a titanium dioxide pigment and water.

[0018] In this specification, the term "white" in the context of a white inkjet ink composition for printing does not refer only to pure white, but also includes chromatic and achromatic colors, as well as glossy colors, as long as they are visible as white. Furthermore, it includes inks and colorants that are named and sold in a way that suggests they are white inks or white colorants.

[0019] More quantitatively, "white" refers to a recording that, for example, in CIELAB, L * Not only colors where L is 100, * is between 60 and 100, and a * and b * This also includes colors that are within ±10 of each other.

[0020] The following describes each component contained in the white inkjet ink composition for textile printing.

[0021] 1.1.1 Titanium Dioxide Pigments The white inkjet ink composition for textile printing contains titanium dioxide pigment.

[0022] Examples of titanium dioxide pigments include CI Pigment White 6, which is made of titanium dioxide, and CI Pigment White 6:1, which is made of titanium dioxide containing other metal oxides. Among these, it is preferable to use CI Pigment White 6, which has excellent color development and opacity.

[0023] The form of the titanium dioxide pigment is not particularly limited, and examples include amorphous form, anatase-type crystalline form, and rutile-type crystalline form. From the viewpoint of further improving shielding properties, the rutile-type crystalline form is preferred.

[0024] Titanium dioxide pigments may be commercially available products, such as CR-50, CR-50-2, CR-57, CR-Super70, CR-80, CR-90, CR-90-2, CR-93, CR-95, CR-953, CR-97, R-820, R-830, R-930, UT771, PFC105 (all trade names) from Ishihara Sangyo Co., Ltd., and R-38L (trade name) from Sakai Chemical Industry Co., Ltd. These commercially available products can be used individually or in combination of two or more.

[0025] The average particle size of the titanium dioxide pigment is preferably between 100 nm and 500 nm, more preferably between 50 nm and 450 nm, and even more preferably between 200 nm and 400 nm. By setting the average particle size of the titanium dioxide pigment within this range, ejection stability from the inkjet head tends to be ensured. Furthermore, opacity tends to be improved. In this specification, unless otherwise specified, "average particle size" refers to the volume-based particle size distribution, which is the particle size at a cumulative distribution of 50 vol%. The average particle size is measured using the dynamic light scattering method or the laser diffraction method described in JIS Z8825. Specifically, a particle size analyzer that uses the dynamic light scattering method as its measurement principle (for example, "Microtrac UPA" manufactured by Nikkiso Co., Ltd.) can be used.

[0026] Titanium dioxide pigments may be dispersed using a pigment dispersant. Alternatively, titanium dioxide pigments may be oxidized on their surface with ozone or the like to become self-dispersing pigments and then dispersed for use.

[0027] Pigment dispersants have the function of dispersing pigments in ink. Pigment dispersants may be water-soluble, but those that are not completely water-soluble are preferred. It is thought that they disperse pigments by partially or completely binding to or adsorbing to the pigment, thereby increasing the hydrophilicity of the pigment surface.

[0028] Pigment dispersants are polymer compounds, and examples include acrylic resins and their salts such as poly(meth)acrylic acid, (meth)acrylic acid-acrylonitrile copolymer, (meth)acrylic acid-(meth)acrylic acid ester copolymer, vinyl acetate-(meth)acrylic acid ester copolymer, vinyl acetate-(meth)acrylic acid copolymer, vinylnaphthalene-(meth)acrylic acid copolymer, styrene-(meth)acrylic acid copolymer, styrene-(meth)acrylic acid copolymer, styrene-(meth)acrylic acid-(meth)acrylic acid ester copolymer, styrene-α-methylstyrene-(meth)acrylic acid copolymer, and styrene-α-methylstyrene-(meth)acrylic acid-(meth)acrylic acid ester copolymer.

[0029] Furthermore, examples of pigment dispersants include maleic acid-based resins and their salts, such as styrene-maleic acid copolymer, styrene-maleic anhydride copolymer, vinylnaphthalene-maleic acid copolymer, and vinyl acetate-maleic acid ester copolymer; urethane-based resins and their salts, with or without crosslinking structures; polyvinyl alcohols; and resins such as vinyl acetate-crotonic acid copolymer and its salts.

[0030] Furthermore, acrylic resins may be copolymers of acrylic monomers (acrylic monomers) as described above, or copolymers of acrylic monomers with other monomers. For example, acrylic vinyl resin, which is a copolymer of vinyl monomers as the other monomer, is also called an acrylic resin. Also, among the styrene resins mentioned above, those which are copolymers of styrene monomers and acrylic monomers are included in acrylic resins. Moreover, when referring to acrylic resins, their salts and esterified products are also included.

[0031] Examples of commercially available pigment dispersants include X-200, X-1, X-205, X-220, X-228 (manufactured by Seikoh PMC), Nopcospers® 6100, 6110 (manufactured by Sunnopco Corporation), Joncryl 67, 586, 611, 678, 680, 682, 819 (manufactured by BASF), DISPERBYK-190 (manufactured by Bic Chemie Japan Co., Ltd.), N-EA137, N-EA157, N-EA167, N-EA177, N-EA197D, N-EA207D, and E-EN10 (manufactured by Daiichi Kogyo Seiyaku).

[0032] Examples of commercially available acrylic pigment dispersants include BYK-187, BYK-190, BYK-191, BYK-194N, BYK-199 (manufactured by Big Chemie Co., Ltd.), Aron A-210, A6114, AS-1100, AS-1800, A-30SL, A-7250, and CL-2 (manufactured by Toagosei Co., Ltd.).

[0033] Commercially available urethane-based pigment dispersants include BYK-182, BYK-183, BYK-184, BYK-185 (manufactured by Bic Chemi Co., Ltd.), TEGO Disperse710 (manufactured by Evonic Tego Chemi), and Borchi® Gen1350 (manufactured by OMG Borschers).

[0034] The pigment dispersant is preferably an anionic pigment dispersant. An "anionic pigment dispersant" refers to a pigment dispersant that has a negative charge as a whole, and it is preferable that it has one or more anionic groups selected from carboxyl groups, sulfonic acid groups, phosphate groups, etc.

[0035] The pigment dispersant may be used alone or in combination of two or more types. The pigment dispersant content is preferably 0.1% to 30% by mass, more preferably 0.5% to 25% by mass, even more preferably 1% to 20% by mass, and particularly preferably 1.5% to 15% by mass, based on 100% by mass of the white inkjet ink composition. A pigment dispersant content of 0.1% by mass or more tends to ensure the dispersion stability of the titanium dioxide pigment. Furthermore, a pigment dispersant content of 30% by mass or less tends to keep the viscosity of the white inkjet ink composition low.

[0036] Furthermore, it is even more preferable that the weight-average molecular weight of the pigment dispersant be 500 or higher. Using such a pigment dispersant tends to result in less odor and improved dispersion stability of the pigment.

[0037] When dispersing titanium dioxide pigment with a pigment dispersant, the ratio of titanium dioxide pigment to pigment dispersant is preferably 10:1 to 1:10, and more preferably 4:1 to 1:3.

[0038] From the viewpoint of superior color development, the titanium dioxide pigment content is preferably 1.0% by mass or more, more preferably 3.0% by mass or more, even more preferably 5.0% by mass or more, even more preferably 7.0% by mass or more, particularly preferably 8.3% by mass or more, and most particularly preferably 9.0% by mass or more, based on the total amount of the printed white inkjet ink composition. From the viewpoint of superior friction fastness and continuous printing stability, the titanium dioxide pigment content is preferably 30.0% by mass or less, more preferably 20.0% by mass or less, even more preferably 15.0% by mass or less, particularly preferably 11.8% by mass or less, and most particularly preferably 11.0% by mass or less, based on the total amount of the printed white inkjet ink composition. When the titanium dioxide pigment content is within the above range, particularly 8.3 to 11.8% by mass relative to the total amount of the white inkjet ink composition, it tends to achieve both good color development, good friction fastness, and continuous printing stability.

[0039] 1.1.2 Water The white inkjet ink composition for textile printing contains water. Examples of water include pure water such as deionized water, ultrafiltered water, reverse osmosis water, and distilled water, as well as ultrapure water, which has reduced ionic impurities. Furthermore, using water sterilized by ultraviolet irradiation or the addition of hydrogen peroxide can suppress the growth of bacteria and fungi when the reaction solution is stored for a long period of time.

[0040] The water content is preferably 30% by mass or more, more preferably 40% by mass or more, even more preferably 50% by mass or more, and particularly preferably 60% by mass or more, based on the total amount of the white inkjet ink printing composition. There is no particular upper limit to the water content, but for example, it is preferably 90% by mass or less, more preferably 80% by mass or less, and more preferably 70% by mass or less, based on the total amount of the white inkjet ink printing composition.

[0041] 1.1.3 Resin particles The white inkjet ink composition for printing may contain resin particles. The resin particles can be the same as those contained in the transparent inkjet ink composition for printing described later. The resin particles in the white inkjet ink composition for printing can be selected independently of the resin particles contained in the transparent inkjet ink composition for printing described later.

[0042] The resin particle content is preferably 3.0 to 20.0% by mass, more preferably 5.0 to 15.0% by mass, and even more preferably 7.0 to 13.0% by mass, based on the total amount of the printed white inkjet ink composition. While it is preferable for white ink to contain a large amount of resin particles, inkjet ejection From the standpoint of reliability and texture, it is difficult to easily incorporate a large amount of resin particles. Furthermore, simply using clear ink does not provide sufficient friction fastness. In contrast, with the composition set according to this embodiment, even if the resin particle content in the printed white inkjet ink composition is within the above range, better friction fastness tends to be obtained.

[0043] The ratio of resin particles in the transparent inkjet ink printing composition described later to the resin particle content in the white inkjet ink printing composition is preferably 1.0 or more, more preferably 1.2 or more, even more preferably 1.3 or more, and particularly preferably 1.5 or more. The upper limit is not particularly limited, but is preferably 2.5 or less, more preferably 2.0 or less, and particularly preferably 1.8 or less. When the ratio of resin particles in the transparent inkjet ink for printing (described later) to the resin particle content in the white inkjet ink for printing is within the above range, particularly 1.2 or more, the friction fastness tends to be better.

[0044] 1.1.4 Organic Solvents The white inkjet ink composition for textile printing may contain an organic solvent. Examples of organic solvents include esters, glycol ethers, cyclic esters, amides, alcohols, and polyhydric alcohols.

[0045] Esters include glycol monoacetates such as ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, diethylene glycol monomethyl ether acetate, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, dipropylene glycol monomethyl ether acetate, methoxybutyl acetate, ethylene glycol diacetate, and diethylene glycol. Examples of glycol diesters include propyl diacetate, propylene glycol diacetate, dipropylene glycol diacetate, ethylene glycol acetate propionate, ethylene glycol acetate butyrate, diethylene glycol acetate butyrate, diethylene glycol acetate propionate, diethylene glycol acetate butyrate, propylene glycol acetate propionate, propylene glycol acetate butyrate, dipropylene glycol acetate butyrate, and dipropylene glycol acetate propionate.

[0046] Examples of glycol ethers include monoethers or diethers of alkylene glycols. Examples of alkylene glycol monoethers include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monobutyl 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, tetraethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, tripropylene glycol monomethyl ether, tripropylene glycol monobutyl ether, 3-methoxy-3-methylbutanol, and other alkylene glycol monoalkyl ethers. It can be listed. Examples of alkylene glycol diethers include alkylene glycol dialkyl ethers such as ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol dibutyl ether, diethylene glycol methyl ethyl ether, diethylene glycol methyl butyl ether, triethylene glycol dimethyl ether, triethylene glycol diethyl ether, triethylene glycol dibutyl ether, triethylene glycol methyl butyl 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, dipropylene glycol diethyl ether, and tripropylene glycol dimethyl ether.

[0047] Examples of cyclic esters include cyclic esters (lactones) such as β-propiolactone, γ-butyrolactone, δ-valerolactone, ε-caprolactone, β-butyrolactone, β-valerolactone, γ-valerolactone, β-hexanolactone, γ-hexanolactone, δ-hexanolactone, β-heptanolactone, γ-heptanolactone, δ-heptanolactone, ε-heptanolactone, γ-octanolactone, δ-octanolactone, ε-octanolactone, δ-nonalactone, ε-nonalactone, and ε-decanolactone, as well as compounds in which the hydrogen atoms of the methylene group adjacent to the carbonyl group are substituted with alkyl groups having 1 to 4 carbon atoms.

[0048] Examples of amides include cyclic amides and acyclic amides. Examples of acyclic amides include alkoxyalkyl amides. Examples of cyclic amides include lactams. Examples of lactams include pyrrolidones such as 2-pyrrolidone, 1-methyl-2-pyrrolidone, 1-ethyl-2-pyrrolidone, 1-propyl-2-pyrrolidone, 1-butyl-2-pyrrolidone, and 1-(2-hydroxyethyl)pyrrolidine-2-one. Examples of alkoxyalkylamides include 3-methoxy-N,N-dimethylpropionamide, 3-methoxy-N,N-diethylpropionamide, 3-methoxy-N,N-methylethylpropionamide, 3-ethoxy-N,N-dimethylpropionamide, 3-ethoxy-N,N-diethylpropionamide, 3-ethoxy-N,N-methylethylpropionamide, 3-n-butoxy-N,N-dimethylpropionamide, 3-n-butoxy-N,N-diethylpropionamide, 3-n-butoxy-N,N-methylethylpropionamide, and 3-n-propoxy-N,N-dimethylpropionamide. Examples include propionamide, 3-n-propoxy-N,N-diethylpropionamide, 3-n-propoxy-N,N-methylethylpropionamide, 3-iso-propoxy-N,N-dimethylpropionamide, 3-iso-propoxy-N,N-diethylpropionamide, 3-iso-propoxy-N,N-methylethylpropionamide, 3-tert-butoxy-N,N-dimethylpropionamide, 3-tert-butoxy-N,N-diethylpropionamide, 3-tert-butoxy-N,N-methylethylpropionamide, N,N-dimethylisobutyrateamide, etc.

[0049] Examples of alcohols include compounds in which one hydrogen atom of an alkane is replaced by a hydroxyl group. The alkane preferably has 10 or fewer carbon atoms, more preferably 6 or fewer, and even more preferably 3 or fewer. The alkane has 1 or more carbon atoms, preferably 2 or more. The alkane may be linear or branched. Examples of alcohols include methanol, ethanol, n-propyl alcohol, iso-propyl alcohol, n-butanol, 2-butanol, and t Examples include ert-butanol, iso-butanol, n-pentanol, 2-pentanol, 3-pentanol, and tert-pentanol, 2-phenoxyethanol, benzyl alcohol, and phenoxypropanol.

[0050] Polyhydric alcohols are molecules that contain two or more hydroxyl groups. Examples of polyhydric alcohols include alkanediols and polyols. Polyhydric alcohols have a carbon-hydrogen skeleton and two or more hydroxyl groups in their molecule, and may also have an ether-bonded oxygen atom. It is preferable that they do not have any structures other than these.

[0051] Alkanediols include, for example, compounds in which an alkane is substituted with two hydroxyl groups. Examples of alkanediols include 1,2-alkanediols, which are a general term for compounds in which hydroxyl groups are substituted at the 1st and 2nd positions of an alkane, and other alkanediols other than 1,2-alkanediols. 1,2-alkanediols are preferred. The number of carbon atoms in alkanediols is preferably 2 or more, more preferably 3 to 10. Furthermore, 5 or more is preferred, and 5 to 8 is more preferred. On the other hand, 4 or fewer carbon atoms is also preferred.

[0052] Examples of 1,2-alkanediols include ethylene glycol, 1,2-propanediol (propylene glycol), 1,2-butanediol, 1,2-pentanediol (1,2PD), 1,2-hexanediol, 1,2-heptanediol, 1,2-octanediol, 1,2-nonanediol, 1,2-decanediol, 3-methyl-1,2-butanediol, 3-methyl-1,2-pentanediol, 4-methyl-1,2-pentanediol, 3,4-dimethyl-1,2-pentanediol, and 3 Examples include -ethyl-1,2-pentanediol, 4-ethyl-1,2-pentanediol, 3-methyl-1,2-hexanediol, 4-methyl-1,2-hexanediol, 5-methyl-1,2-hexanediol, 3,4-dimethyl-1,2-hexanediol, 3,5-dimethyl-1,2-hexanediol, 4,5-dimethyl-1,2-hexanediol, 3-ethyl-1,2-hexanediol, 4-ethyl-1,2-hexanediol, and 3-ethyl-4-methyl-1,2-hexanediol.

[0053] Other examples of alkanediols include 1,3-propanediol, 1,3-butylene glycol (also known as 1,3-butanediol), 1,4-butanediol, 2,3-butanediol, 1,5-pentanediol, 2,4-pentanediol, 2-methyl-1,3-propanediol, 3-methyl-1,3-butanediol, 3-methyl-1,5-pentanediol, 2-ethyl-1,3-hexanediol, 2-methyl-1,3-pentanediol, 3-methyl-1,5-pentanediol, 2-methylpentane-2,4-diol, 1,6-hexanediol, 2-ethyl-2-methyl-1,3-propanediol, and 2-methyl-2-propyl-1,3-propanediol.

[0054] Examples of polyols include condensates formed by the intermolecular condensation of two or more alkanediol molecules via hydroxyl groups, and compounds having three or more hydroxyl groups.

[0055] Examples of condensates formed by the intermolecular condensation of two or more alkanediol molecules at their hydroxyl groups include dialkylene glycols such as diethylene glycol and dipropylene glycol, and trialkylene glycols such as triethylene glycol and tripropylene glycol.

[0056] Compounds having three or more hydroxyl groups are compounds with an alkane or polyether structure as their backbone and containing three or more hydroxyl groups. Examples of compounds having three or more hydroxyl groups include glycerin, trimethylolethane, trimethylolpropane, and 1,2,5-hexanetri Examples include ol, 1,2,6-hexanetriol, pentaerythritol, and polyoxypropylenetriol.

[0057] Organic solvents may be used individually or in combination of two or more types.

[0058] Among these, the organic solvent preferably contains polyhydric alcohols, more preferably polyols, and even more preferably one or more selected from glycerin and triethylene glycol. When the organic solvent contains these solvents, it may have superior color development, friction fastness, and texture.

[0059] Furthermore, it is preferable that the organic solvent includes an organic solvent with a standard boiling point exceeding 280°C. When the organic solvent includes an organic solvent with a standard boiling point exceeding 280°C, it may exhibit superior color development, friction fastness, and texture. Examples of organic solvents with a standard boiling point exceeding 280°C include triethylene glycol and glycerin.

[0060] The content of the organic solvent is preferably 3 to 50% by mass, more preferably 5 to 40% by mass, even more preferably 10 to 30% by mass, and particularly preferably 12 to 20% by mass, based on the total amount of the white inkjet ink composition. When the content of the organic solvent is within the above range, the color development, friction fastness, and texture may be superior. It is also preferable to have an organic solvent with a standard boiling point exceeding 280°C within the above range.

[0061] 1.1.5 Surfactants The white inkjet ink composition for printing may contain a surfactant. The surfactant can be used to lower the surface tension of the white inkjet ink composition, for example, to adjust or improve its penetration into fabrics. Any of the surfactants that can be used are nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants, and these may be used in combination. Among surfactants, acetylene-based surfactants (acetylene glycol-based surfactants), silicone-based surfactants, and fluorine-based surfactants can be used more preferably, and acetylene-based surfactants can be used even more preferably.

[0062] The acetylene glycol-based surfactant is not particularly limited, but for example, one or more selected from 2,4,7,9-tetramethyl-5-decine-4,7-diol and alkylene oxide adducts of 2,4,7,9-tetramethyl-5-decine-4,7-diol, and 2,4-dimethyl-5-decine-4-ol and alkylene oxide adducts of 2,4-dimethyl-5-decine-4-ol are preferred. Commercially available acetylene glycol-based surfactants include, but are not limited to, Surfinol 104, 104E, 104H, 104A, 104BC, 104DPM, 104PA, 104PG-50, 104S, 420, 440, 465, 485, SE, SE-F, 504, 61, DF37, CT111, CT121, CT131, CT136, TG, GA, and DF110D (all are brand names, manufactured by Air Products Japan Co., Ltd.). Examples include Olphine B, Y, P, A, STG, SPC, E1004, E1010, PD-001, PD-002W, PD-003, PD-004, EXP.4001, EXP.4036, EXP.4051, AF-103, AF-104, AK-02, SK-14, AE-3 (all brand names, manufactured by Nisshin Chemical Industry Co., Ltd.), and Acetylene Nol E00, E00P, E40, E100 (all brand names, manufactured by Kawaken Fine Chemical Co., Ltd.). Acetylene glycol-based surfactants may be used individually or in combination of two or more types.

[0063] Silicone-based surfactants are not particularly limited, but examples include polysiloxane compounds and polyether-modified organosiloxanes. Commercially available products include, but are not limited to, BYK-306, BYK-307, BYK-333, BYK-341, BYK-345, BYK-346, BYK-348, BYK-349 (all product names, manufactured by Big Chemie Japan Co., Ltd.), 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 (all product names, manufactured by Shin-Etsu Chemical Co., Ltd.), Silface SAG503A, Silface SAG014 (both product names, manufactured by Nisshin Chemical Industry Co., Ltd.), and others. Silicone-based surfactants may be used individually or in combination of two or more types.

[0064] Examples of fluorinated surfactants include, but are not limited to, perfluoroalkyl sulfonates, perfluoroalkyl carboxylates, perfluoroalkyl phosphate esters, perfluoroalkyl ethylene oxide adducts, perfluoroalkyl betaines, and perfluoroalkylamine oxide compounds. Examples of commercially available fluorinated surfactants include, but are not limited to, S-144, S-145 (trade names, manufactured by Asahi Glass Co., Ltd.); FC-170C, FC-430, Florard-FC4430 (trade names, manufactured by Sumitomo 3M Limited); FSO, FSO-100, FSN, FSN-100, FS-300 (trade names, manufactured by Dupont); FT-250, 251 (trade names, manufactured by Neos Co., Ltd.). Fluorinated surfactants may be used individually or in combination of two or more types.

[0065] Surfactants may be used individually or in combination of two or more types.

[0066] The surfactant content is preferably 5.0% by mass or less, more preferably 3.0% by mass or less, even more preferably 2.0% by mass or less, particularly preferably 1.0% by mass or less, and most particularly preferably 0.5% by mass or less, based on the total amount of the white inkjet ink composition used for printing. When the surfactant content is within the above range, the color development, friction fastness, and texture may be superior. The lower limit of the surfactant content is not particularly limited, but it is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, and even more preferably 0.5% by mass or more, based on the total amount of the white inkjet ink composition used for printing.

[0067] 1.1.6 pH adjusters The white inkjet ink composition for textile printing may contain a pH adjuster.

[0068] pH adjusters are not particularly limited, but include appropriate combinations of acids, bases, weak acids, and weak bases. Examples of acids and bases used in such combinations include, as inorganic acids, sulfuric acid, hydrochloric acid, nitric acid, etc.; as inorganic bases, lithium hydroxide, sodium hydroxide, potassium hydroxide, potassium dihydrogen phosphate, disodium hydrogen phosphate, potassium carbonate, sodium carbonate, sodium bicarbonate, ammonia, etc.; as organic bases, triethanolamine, diethanolamine, monoethanolamine, tripolanolamine, triisopropanolamine, diisopropanolamine, trishydroxymethylaminomethane (THAM), etc.; and as organic acids, adipine Acids, citric acid, succinic acid, lactic acid, N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid (BES), 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES), morpholinoethanesulfonic acid (MES), carbamoylmethyliminobisacetic acid (ADA), piperazine-1,4-bis(2-ethanesulfonic acid) (PIPES), N-(2-acetamide)-2-aminoethanesulfonic acid (ACES), cholamine hydrochloride, N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid (TES), acetamidoglycine, tricine, glycine Examples include Good's buffers such as synamide and bicine, phosphate buffers, citrate buffers, and Tris buffers. Among these, inorganic bases are preferred, and potassium hydroxide is more preferred.

[0069] The above pH adjusting agents may be used individually or in combination of two or more.

[0070] The total content of pH adjusters is preferably 3.00% by mass or less, more preferably 1.00% by mass or less, even more preferably 0.50% by mass or less, particularly preferably 0.30% by mass or less, and most particularly preferably 0.20% by mass or less, relative to the total amount of the printed white inkjet ink composition. The lower limit of the total content of pH adjusters is not particularly limited, but is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and more preferably 0.10% by mass or more, relative to the total amount of the printed white inkjet ink composition.

[0071] 1.1.7 Other Ingredients The white inkjet ink composition for printing may optionally contain various additives such as preservatives, antifungal agents, rust inhibitors, chelating agents, viscosity modifiers, solubilizers, and antioxidants. When such additives are included, the content is preferably 0.1 to 5% by mass, more preferably 0.1 to 3% by mass, and even more preferably 0.1 to 1% by mass, based on the total amount of the white inkjet ink composition for printing.

[0072] 1.1.8 Physical Properties The viscosity of the white inkjet ink composition for textile printing is preferably 1.0 to 15 mPa·s, more preferably 1.5 to 8 mPa·s, and even more preferably 1.5 to 5.5 mPa·s at 20°C. A viscosity of 1.0 mPa·s or higher tends to yield better color development. A viscosity of 15 mPa·s or lower tends to yield better continuous printing stability.

[0073] From the viewpoint of ensuring appropriate wetting and spreading properties on fabric, the surface tension of the white inkjet ink composition is preferably 10 to 40 mN / m at 20°C, more preferably 15 to 35 mN / m, even more preferably 20 to 30 mN / m, and particularly preferably 25 to 30 mN / m.

[0074] 1.2 Transparent inkjet ink composition for textile printing The composition set according to this embodiment comprises a transparent inkjet ink composition containing resin particles and water. The components contained in the transparent inkjet ink composition will be described below.

[0075] 1.2.1 Resin particles The transparent inkjet ink composition contains resin particles. These resin particles function as a fixing resin, improving the adhesion of the ink to the fabric. Furthermore, the resin particles react with the second processing liquid composition (described later) to aggregate, thereby increasing the viscosity of the transparent inkjet ink composition. While the resin particles are often handled in emulsion form, they may also be in powder form.

[0076] The resin particles are preferably anionic. Here, "anionic" means that the resin particles as a whole have a negative charge, and it is preferable that the resin particles have one or more anionic groups selected from carboxyl groups, sulfonic acid groups, phosphate groups, etc.

[0077] Examples of resin particles include urethane resin and acrylic resin (styrene-acrylic resin). Examples of resin particles include those made of fluorene resin, olefin resin, rosin-modified resin, terpene resin, ester resin, amide resin, epoxy resin, vinyl chloride resin, vinyl chloride-vinyl acetate copolymer, ethylene vinyl acetate resin, etc. Among these, urethane resin, acrylic resin, ofrefin resin, and ester resin are preferred. Furthermore, the resin particles may be used individually or in combination of two or more types.

[0078] Urethane resin is a general term for resins that have urethane bonds. In addition to urethane bonds, urethane resins may also be polyether-type urethane resins containing ether bonds in the main chain, ester-type urethane resins containing ester bonds in the main chain, or carbonate-type urethane resins containing carbonate bonds in the main chain. Commercially available urethane resins may also be used, such as Superflex 460, 460s, 840, E-4000 (product names, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), Rezamin D-1060, D-2020, D-4080, D-4200, D-6300, D-6455 (product names, manufactured by Dainichi Seika Kogyo Co., Ltd.), Takelac WS-5100, WS-6021, W-512-A-6 (product names, manufactured by Mitsui Chemicals Polyurethane Co., Ltd.), SanCure 2710 (product name, manufactured by LUBRIZOL), and Permarin UA-150 (product name, manufactured by Sanyo Chemical Industries, Ltd.).

[0079] Acrylic resin is a general term for polymers obtained by polymerizing at least one acrylic monomer, such as (meth)acrylic acid or (meth)acrylic acid ester. Examples include resins obtained from acrylic monomers and copolymers of acrylic monomers with other monomers. For example, acrylic-vinyl resin, which is a copolymer of acrylic monomers and vinyl monomers, is an example. For example, styrene can be used as a vinyl monomer. Acrylic monomers such as acrylamide and acrylonitrile can also be used. For resin emulsions made from acrylic resin, commercially available products may be used, for example, selected from FK-854 (trade name, manufactured by Chuo Rika Kogyo Co., Ltd.), Movinyl 952B, 718A (trade name, manufactured by Nippon Synthetic Chemical Industry Co., Ltd.), Nipol LX852, LX874 (trade name, manufactured by Nippon Zeon Co., Ltd.).

[0080] Styrene-acrylic resins are copolymers obtained from styrene monomers and (meth)acrylic monomers, and examples include styrene-acrylic acid copolymers, styrene-methacrylic acid copolymers, styrene-methacrylic acid-acrylic acid ester copolymers, styrene-α-methylstyrene-acrylic acid copolymers, and styrene-α-methylstyrene-acrylic acid-acrylic acid ester copolymers. For the styrene-acrylic resin, commercially available products may be used, such as Joncryl 62J, 7100, 390, 711, 511, 7001, 632, 741, 450, 840, 74J, HRC-1645J, 734, 852, 7600, 775, 537J, 1535, PDX-7630A, 352J, 352D, PDX-7145, 538J, 7640, 7641, 631, 790, 780, 7610 (product names, manufactured by BASF), Movinyl 966A, 975N (product names, manufactured by Nippon Synthetic Chemical Industry Co., Ltd.), Vinibran 2586 (manufactured by Nisshin Chemical Industry Co., Ltd.), etc.

[0081] Olefin resins are polymers having olefins such as ethylene, propylene, and butylene as their structural backbone, and known olefin resins can be appropriately selected and used. Commercially available olefin resins can be used, for example, Arrowbase CB-1200, CD-1200 (trade names, manufactured by Unitika Ltd.), etc.

[0082] The resin particles are more preferably urethane resin or acrylic resin, and even more preferably urethane resin. In this case, the frictional fastness tends to be superior.

[0083] The glass transition temperature (Tg) of the resin particles is preferably -60°C to 50°C, more preferably -60°C to 40°C, and even more preferably -30°C to 10°C. Therefore, if the glass transition temperature (Tg) of the resin particles is within the above range, the fabric conformability (texture) tends to be superior. The glass transition temperature is measured, for example, using a differential scanning calorimeter "DSC7000" manufactured by Hitachi High-Tech Science Corporation, in accordance with JIS K7121 (Method for measuring the transition temperature of plastics).

[0084] From the viewpoint of achieving superior friction fastness, the resin particle content is preferably 5.0% by mass or more, more preferably 7.0% by mass or more, even more preferably 10.0% by mass or more, particularly preferably 12.0% by mass or more, and most particularly preferably 15.0% by mass or more, based on the total amount of the transparent inkjet ink composition. From the viewpoint of superior continuous printing stability and texture, the resin particle content is preferably 30.0% by mass or less, more preferably 25.0% by mass or less, even more preferably 20.0% by mass or less, and particularly preferably 18.0% by mass or less, relative to the total amount of the transparent inkjet ink composition. When the resin particle content is within the above range, particularly 7.0% by mass or more, the frictional fastness tends to be better, which is preferable.

[0085] 1.2.2 Water The transparent inkjet ink composition for textile printing contains water. The water used can be the same as that used in the white inkjet ink composition for textile printing described above, and the content and other aspects can also be the same.

[0086] 1.2.3 Organic Solvents The transparent inkjet ink composition for printing may contain an organic solvent. The organic solvent can be the same as that used in the white inkjet ink composition for printing described above, and the content and other aspects can also be the same.

[0087] 1.2.4 Surfactants The transparent inkjet ink composition may contain a surfactant. The same surfactant as that used in the white inkjet ink composition described above can be used.

[0088] The surfactant content is preferably 8.0% by mass or less, more preferably 5.0% by mass or less, even more preferably 3.0% by mass or less, particularly preferably 2.0% by mass or less, and most particularly preferably 1.5% by mass or less, based on the total amount of the transparent inkjet ink composition. When the surfactant content is within the above range, the color development, friction fastness, and texture may be superior. The lower limit of the surfactant content is not particularly limited, but is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, even more preferably 0.5% by mass or more, and still more preferably 0.7% by mass or more, based on the total amount of the translucent inkjet ink composition.

[0089] 1.2.5 Other Ingredients The transparent inkjet ink composition may optionally contain various additives such as pH adjusters, preservatives / fungal agents, rust inhibitors, chelating agents, viscosity modifiers, solubilizers, and antioxidants. When such additives are included, the content is preferably 0.1 to 5% by mass, more preferably 0.1 to 3% by mass, and even more preferably 0.1 to 1% by mass, relative to the total amount of the transparent ink composition.

[0090] Furthermore, the transparent inkjet ink composition may contain colorants such as pigments, but it is preferable that the amount is 0.2% by mass or less, more preferably 0.1% by mass or less, and even more preferably 0.05% by mass or less, relative to the total amount of the transparent inkjet ink composition. Preferably, the lower limit is 0% by mass. The transparent inkjet ink composition preferably does not contain any colorants.

[0091] 1.2.6 Physical Properties The viscosity and surface tension of the transparent inkjet ink composition for printing are preferably the same as those of the white inkjet ink composition for printing described above.

[0092] 1.3 Treatment liquid composition The composition set according to this embodiment comprises a processing liquid composition containing particles containing organopolysiloxane and water. The components contained in the processing liquid composition will be described below.

[0093] 1.3.1 Particles containing organopolysiloxanes The processing solution composition contains particles containing organopolysiloxane.

[0094] The term "particles containing organopolysiloxane" is not particularly limited as long as they contain organopolysiloxane. For example, they may be organopolysiloxane particles themselves, or particles in which organopolysiloxane is dispersed by an emulsifier or the like. The properties of the organopolysiloxane in such particles may be solid or liquid. For example, when an oily organopolysiloxane is dispersed in water as particulate matter by an emulsifier, the dispersed particles correspond to particles containing organopolysiloxane. Therefore, "emulsified particles containing silicone oil" are included in particles containing organopolysiloxane.

[0095] Organopolysiloxanes are siloxane bonds "-Si(R 1 R 2 The main skeleton is ")-O-", to which substituent R 1 , R 2 Organopolysiloxanes are a general term for organosilicon compounds to which organic groups such as methyl groups, phenyl groups, vinyl groups, and amino groups, or hydrogen atoms, are bonded. Depending on their chemical composition and molecular weight, organopolysiloxanes exhibit oily, rubbery, or resinous properties, and are sometimes referred to as silicone oil, silicone rubber, and silicone resin, respectively. It is preferable that organopolysiloxanes are high-molecular-weight compounds.

[0096] The organopolysiloxane used in the treatment solution composition according to this embodiment is more preferably an oily compound. When the organopolysiloxane is an oily compound, it is easier to stably disperse it in particulate form in an aqueous matrix by the emulsification treatment described later.

[0097] The molecular structure of organopolysiloxanes is not particularly limited, and examples include linear, branched, cyclic, lattice-like, and cage-like structures. When the molecular structure of an organopolysiloxane is acyclic, the Si atom at the end of the molecule is usually bonded to one or more groups selected from hydrocarbon groups (which may have substituents), alkoxy groups, hydroxyl groups, hydrogen atoms, and halogens.

[0098] Organopolysiloxanes are not particularly limited, but examples include dimethyl silicone, alkyl-modified silicone, amino-modified silicone, epoxy-modified silicone, cyclic silicone, and methylphenyl silicone, which can be used individually or in combination of two or more.

[0099] Among these, the organopolysiloxane is preferably one selected from dimethyl silicone, amino-modified silicone, and epoxy-modified silicone, and more preferably dimethyl silicone. In particular, if the organopolysiloxane is dimethyl silicone... In some cases, it tends to have superior color reproduction and continuous printing stability.

[0100] Furthermore, it is preferable that the organopolysiloxane is a nonionic silicone. When the organopolysiloxane is a nonionic silicone, it is less prone to aggregation and tends to have better continuous printing stability. In particular, when the second processing liquid composition described later is ejected by an inkjet method, continuous printing stability tends to be poor due to the aggregation action of the flocculant, so it is preferable that the organopolysiloxane is a nonionic silicone. In addition, when the organopolysiloxane is a nonionic silicone, it is more chemically stable and less likely to cause yellowing of the formed image, which is preferable.

[0101] As the organopolysiloxane, those commercially available as silicone oils may be used. Examples thereof include dimethyl silicone oil, methylphenyl silicone oil, methylhydrogen silicone oil, polyether-modified silicone oil, aralkyl-modified silicone oil, fluoroalkyl-modified silicone oil, long-chain alkyl-modified silicone oil, higher fatty acid ester-modified silicone oil, higher fatty acid amide-modified silicone oil, polyether-long-chain alkyl-aralkyl-modified silicone oil, long-chain alkyl-aralkyl-modified silicone oil, phenyl-modified silicone oil, polyether-methoxy-modified silicone oil, and the like.

[0102] Examples of commercially available products of particles containing organopolysiloxane include, for example, Hisopther (registered trademark) K-45 (manufactured by Meisei Chemical Industry Co., Ltd., dimethyl silicone), POLON-MF-14 (manufactured by Shin-Etsu Chemical Co., Ltd., amine-modified silicone emulsion), X-51-1264 (manufactured by Shin-Etsu Chemical Co., Ltd., epoxy-modified silicone emulsion), and the like.

[0103] The viscosity of the organopolysiloxane at, for example, 25°C is not particularly limited, but is preferably 1000 mPa·s or less, and is preferably 50 mPa·s or more, more preferably 500 mPa·s or more and 900 mPa·s or less, and even more preferably 600 mPa·s or more and 700 mPa·s or less. Further, the base oil viscosity when the organopolysiloxane is emulsified and dispersed is not particularly limited, but the upper limit is preferably 1000000 mm 2 / s or less, more preferably 100000 mm 2 / s or less, and the lower limit is preferably 10 mm 2 / s or more, more preferably 10 mm 2 / s or more. The base oil viscosity represents the viscosity of the base oil and is a numerical value obtained by measuring the magnitude of the internal resistance of the base oil. The larger the numerical value of the base oil viscosity, the higher the viscosity, and the smaller the value, the lower the viscosity of the base oil.

[0104] As described above, organopolysiloxane may be emulsified with an emulsifier and incorporated in particulate form. As the emulsifier, for example, surfactants such as nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants can be used, and surfactants that can be contained in the above-described white inkjet ink composition may also be used.

[0105] The amount of emulsifier used when emulsifying organopolysiloxane is not particularly limited, but is preferably less than 20% by mass of the total amount of the emulsified composition, more preferably 15% by mass or less, and particularly preferably 10% by mass or less.

[0106] Furthermore, the average particle size of the particles containing organopolysiloxane is preferably 2 μm or less, preferably 1 μm or less, and more preferably in the range of 0.2 to 0.8 μm.

[0107] From the viewpoint of superior continuous printing stability, the content of particles containing organopolysiloxane is preferably 30.0% by mass or less, and preferably 25.0% by mass or less, relative to the total amount of the processing solution composition. The lower is more preferable, 20.0% by mass or less is even more preferable, 17.0% by mass or less is even more preferable, 15.0% by mass or less is particularly preferable, and 14.0% by mass or less is even more particularly preferable. From the viewpoint of superior friction fastness and texture, the content of particles containing organopolysiloxane is preferably 3.0% by mass or more, more preferably 5.0% by mass or more, even more preferably 7.0% by mass or more, particularly preferably 10.0% by mass or more, and most particularly preferably 12.0% by mass or more, relative to the total amount of the treatment liquid composition. The content of particles containing organopolysiloxane is particularly preferable when it is 5 to 15 mass relative to the total amount of the processing solution composition, as this tends to provide a good balance between continuous printing stability, friction fastness, and texture.

[0108] The amount of organopolysiloxane-containing particles in the processing solution composition is preferably greater than the amount of resin particles in the above-mentioned white inkjet ink composition for textile printing. In this case, using a processing solution containing organopolysiloxane-containing particles effectively reduces the coefficient of friction on the surface of the printed material, improving its slipperiness, and also softens the ink film itself, resulting in a tendency for superior friction fastness and texture. More specifically, the content of organopolysiloxane-containing particles in the processing solution composition relative to the resin particle content in the above-mentioned white inkjet ink printing composition is preferably 1.0 or more, more preferably 1.1 or more, even more preferably 1.2 or more, and particularly preferably 1.3 or more. There is no particular upper limit, but it is preferably 2.0 or less, more preferably 1.7 or less, and even more preferably 1.5 or less.

[0109] The amount of organopolysiloxane-containing particles in the processing solution composition is preferably less than the amount of resin particles in the transparent inkjet ink composition used for printing. In this case, using a processing solution containing organopolysiloxane-containing particles effectively reduces the coefficient of friction on the surface of the printed material, improving its slipperiness, and also softens the ink film itself, which tends to result in superior friction fastness and texture. More specifically, the content of organopolysiloxane-containing particles in the processing solution composition relative to the resin particle content in the transparent inkjet ink composition described above is preferably 0.95 or less, more preferably 0.90 or less, and even more preferably 0.88 or less. The lower limit is not particularly limited, but is preferably 0.50 or more, more preferably 0.70 or more, and even more preferably 0.80 or more.

[0110] The content of particles containing organopolysiloxane relative to the total solid content in the treatment liquid composition is preferably 90.0% by mass or more. That is, it is preferable that 90.0% by mass or more of the solid content remaining after the treatment liquid composition dries is organopolysiloxane. The content of particles containing organopolysiloxane relative to the total solid content in the treatment liquid composition is more preferably 95.0% by mass or more, even more preferably 98% by mass or more, and particularly preferably 99.0% by mass or more. When the content of organopolysiloxane-containing particles relative to the total solid content in the processing solution composition is 90% by mass or more, it tends to be easier to form a coating film with a sufficiently low refractive index, and to form an image with better color development. In addition, it tends to improve the ejection stability when the processing solution composition is ejected by an inkjet method.

[0111] 1.3.2 Water The processing solution composition contains water. The water used can be the same as that used in the above-described white inkjet ink composition for textile printing.

[0112] The water content is preferably 40% by mass or more, more preferably 50% by mass or more, even more preferably 60% by mass or more, and particularly preferably 70% by mass or more, based on the total amount of the treatment liquid composition. The upper limit of the water content is not particularly limited, but is preferably 90% by mass or less, more preferably 95% by mass or less, and more preferably 90% by mass or less, relative to the total amount of the white inkjet ink composition.

[0113] 1.3.3 Organic Solvents The processing solution composition may contain an organic solvent. The same organic solvent as described above for the white inkjet ink composition can be used.

[0114] In the processing liquid composition, it is preferable that the organic solvent contains an organic solvent with a standard boiling point exceeding 280°C, and more preferably an organic solvent with a standard boiling point of 290°C or higher. Examples of organic solvents with a standard boiling point of 290°C or higher include glycerin.

[0115] The content of the organic solvent is preferably 1 to 30% by mass, more preferably 3 to 20% by mass, even more preferably 5 to 15% by mass, and particularly preferably 6 to 10% by mass, based on the total amount of the treatment liquid composition. When the content of the organic solvent is within the above range, the color development, friction fastness, and texture may be superior. It is also preferable to have an organic solvent with a standard boiling point of 290°C or higher within the above range.

[0116] 1.3.4 Other Ingredients The treatment solution composition may optionally contain various additives such as surfactants, resin particles, pH adjusters, preservatives / fungal agents, rust inhibitors, chelating agents, viscosity modifiers, solubilizers, and antioxidants. When such additives are included, the content is preferably 0.1 to 5% by mass, more preferably 0.1 to 3% by mass, and even more preferably 0.1 to 1% by mass, relative to the total amount of the treatment solution composition.

[0117] Furthermore, the treatment solution composition may contain colorants such as pigments, but it is preferable that the amount is 0.2% by mass or less, more preferably 0.1% by mass or less, even more preferably 0.05% by mass or less, and the lower limit is 0% by mass. It is preferable that the treatment solution composition does not contain colorants.

[0118] 1.3.5 Physical Properties The viscosity and surface tension of the processing liquid composition are preferably the same as those of the white inkjet ink composition described above.

[0119] 1.3.6 Purpose The processing liquid composition may be dispensed by an inkjet method. In this case, it is preferable because the processing liquid composition can be easily applied to a predetermined area in a predetermined amount, and the processing liquid composition can be efficiently adhered.

[0120] 1.4 Second Treatment Liquid Composition The composition set according to this embodiment may further include a second treatment liquid composition containing a coagulant that aggregates components in the ink and water. This tends to improve color development.

[0121] 1.4.1 Flocculants The second treatment liquid composition contains a coagulant. The coagulant reacts with components such as pigments and resin particles to cause the components in the ink to aggregate. This aggregation can, for example, enhance the color development of the pigment, improve the fixation of the resin particles, and / or increase the viscosity of the ink. The degree of aggregation of pigments and resin particles by the coagulant varies depending on the type of coagulant, color pigment, and resin particles, and can be adjusted.

[0122] While not particularly limited, examples of flocculants include metal salts, inorganic acids, organic acids, and cationic compounds. Cationic compounds include cationic resins (cationic polymers) and cationic surfactants. Among these, polyvalent metal salts are preferred as metal salts, and cationic resins are preferred as cationic compounds. Therefore, it is preferable to select a flocculant from polyvalent metal salts, organic acids, and cationic resins, as these yield particularly excellent color development properties.

[0123] A polyvalent metal salt is a compound composed of a metal ion with two or more valencies and an anion. Examples of metal ions with two or more valencies include calcium, magnesium, copper, nickel, zinc, barium, aluminum, titanium, strontium, chromium, cobalt, and iron. Among the metal ions that make up these polyvalent metal salts, it is preferable that at least one of calcium ions and magnesium ions is present, given their excellent ability to aggregate ink components.

[0124] The anions constituting the polyvalent metal salt are inorganic ions or organic ions. In other words, the polyvalent metal salt in this invention consists of an inorganic ion or organic ion and a polyvalent metal. Examples of such inorganic ions include chloride ions, bromide ions, iodide ions, nitrate ions, sulfate ions, hydroxide ions, etc. Examples of organic ions include organic acid ions, such as carboxylate ions.

[0125] Furthermore, the polyvalent metal compound is preferably an ionic polyvalent metal salt, and in particular, the stability of the treatment solution is better when the polyvalent metal salt is a magnesium salt or a calcium salt. In addition, either an inorganic acid ion or an organic acid ion may be used as the counterion for the polyvalent metal.

[0126] Specific examples of the polyvalent metal salts mentioned above include calcium carbonate such as heavy calcium carbonate and light calcium carbonate, calcium nitrate, calcium chloride, calcium sulfate, magnesium sulfate, calcium hydroxide, magnesium chloride, magnesium carbonate, barium sulfate, barium chloride, zinc carbonate, zinc sulfide, aluminum silicate, calcium silicate, magnesium silicate, copper nitrate, calcium formate, calcium acetate, magnesium acetate, and aluminum acetate. These polyvalent metal salts may be used individually or in combination of two or more. Among these, at least one of calcium formate, magnesium sulfate, calcium nitrate, and calcium chloride is preferred because it ensures sufficient solubility in water and reduces residue left by the treatment solution (making the residue less noticeable), with calcium formate and calcium nitrate being more preferred. These metal salts may also contain hydration water in their raw material form.

[0127] Examples of metal salts other than polyvalent metal salts include monovalent metal salts such as sodium salts and potassium salts, such as sodium sulfate and potassium sulfate.

[0128] Suitable organic acids include, for example, poly(meth)acrylic acid, acetic acid, glycolic acid, malonic acid, malic acid, maleic acid, ascorbic acid, succinic acid, glutaric acid, fumaric acid, citric acid, tartaric acid, lactic acid, sulfonic acid, orthophosphate, pyrrolidone carboxylic acid, pyrrone carboxylic acid, pyrrole carboxylic acid, furanic acid, pyridine carboxylic acid, coumaric acid, thiophene carboxylic acid, nicotinic acid, or derivatives of these compounds, or salts thereof. Organic acids may be used individually or in combination of two or more. Salts of organic acids that are metal salts are included in the above-mentioned metal salts.

[0129] Examples of inorganic acids include sulfuric acid, hydrochloric acid, nitric acid, and phosphoric acid. Inorganic acids may be used individually or in combination of two or more.

[0130] Cationic resins are resins that have cationic groups. Examples of such resins include urethane resins, acrylic resins, fluorene resins, polyolefin resins, rosin-modified resins, terpene resins, polyester resins, polyamide resins, epoxy resins, vinyl chloride resins, vinyl chloride-vinyl acetate copolymers, and ethylene vinyl acetate resins. Among these, urethane resins, acrylic resins, and polyester resins are preferred.

[0131] Examples of cationic groups include amino groups, ammonium groups, amide groups, and hydrazino groups. Amino groups include primary amine groups, secondary amine groups, and tertiary amine groups. Furthermore, the resin may contain one or more types of cationic groups.

[0132] Examples of resins having a primary amine group include polyallylamine, polyallylamine hydrochloride, polyallylamine amide sulfate, methoxycarbonylated allylamine polymer, methylcarbonylated allylamine acetate polymer, ureated polyallylamine polymer, carboxymethylated polyallylamine polymer, and hexamethylenediamine / epichlorohydrin resin.

[0133] Examples of resins having a secondary amine group include diallylamine polymers, diallylamine hydrochloride polymers, diallylamine hydrochloride / sulfur dioxide copolymers, diallylamine acetate / sulfur dioxide copolymers, diallylamine hydrochloride / acrylamide copolymers, dimethylamine / epichlorohydrin resins, dimethylamine / ammonia / epichlorohydrin resins, and dimethylamine / ethylenediamine / epichlorohydrin polymers.

[0134] Examples of resins having a tertiary amine group include methyldiallylamine hydrochloride polymer, methyldiallylamine amide sulfate polymer, methyldiallylamine acetate polymer, methyldiallylamine hydrochloride-sulfur dioxide copolymer, and dicyandiamide-polyalkylene polyamine polycondensate.

[0135] Examples of resins containing ammonium groups include resins containing quaternary ammonium bases, such as diallyldimethylammonium chloride polymers, diallylmethylethylammonium ethyl sulfate polymers, diallylmethylethylammonium ethyl sulfate / sulfur dioxide copolymers, diallyldimethylammonium chloride / sulfur dioxide copolymers, and diallyldimethylammonium chloride / acrylamide copolymers.

[0136] Examples of resins containing amide groups include polyamides and polyamide epoxy resins.

[0137] Examples of cationic surfactants include primary, secondary, and tertiary amine salt compounds, alkylamine salts, dialkylamine salts, aliphatic amine salts, benzalkonium salts, quaternary ammonium salts, quaternary alkylammonium salts, alkylpyridinium salts, sulfonium salts, phosphonium salts, onium salts, and imidazolinium salts. Specific examples of cationic surfactants include hydrochlorides and acetates of laurylamine, coconut amine, rosinamine, etc., lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, benzyltributylammonium chloride, benzalkonium chloride, dimethylethyl laurylammonium ethyl sulfate, dimethylethyl octylammonium ethyl sulfate, trimethyllaurylammonium hydrochloride, cetylpyridinium chloride, cetylpyridinium bromide, dihydroxyethyl laurylamine, decyldimethylbenzylammonium chloride, dodecyldimethylbenzylammonium chloride, tetradecyldimethylammonium chloride, hexadecyldimethylammonium chloride Examples include octadecyldimethylammonium chloride and other similar materials.

[0138] Multiple types of these flocculants may be used. Furthermore, selecting at least one of these flocculants—a polyvalent metal salt, an organic acid, or a cationic resin—results in better flocculation, thus enabling the formation of higher-quality images (especially those with good color reproduction).

[0139] More preferably, the flocculant contained in the second treatment liquid composition is a polyvalent metal salt. Polyvalent metal salts tend to have a particularly high flocculation effect, and therefore tend to produce better color development. On the other hand, using polyvalent metal salts tends to result in poor friction fastness. In contrast, the composition set according to this embodiment tends to produce better color development while maintaining good friction fastness.

[0140] From the viewpoint of achieving superior color development, the amount of flocculant is preferably 1.0% by mass or more, more preferably 2.0% by mass or more, even more preferably 3.0% by mass or more, particularly preferably 3.5% by mass or more, and most particularly preferably 4.0% by mass or more, relative to the total amount of the second treatment liquid composition. From the viewpoint of achieving superior frictional fastness, the coagulant content is preferably 15.0% by mass or less, more preferably 12.0% by mass or less, even more preferably 10.0% by mass or less, particularly preferably 8.5% by mass or less, and most particularly preferably 7.0% by mass or less, relative to the total amount of the second treatment liquid composition. In particular, the coagulant content is preferably 3.5 to 8.5% by mass relative to the total amount of the second treatment liquid composition. Within this range, there is a tendency to be able to achieve better color development and friction fastness.

[0141] 1.4.2 Water The second processing liquid composition contains water. The water used can be the same as that used in the above-described white inkjet ink composition for textile printing.

[0142] The water content is preferably 40% by mass or more, more preferably 50% by mass or more, even more preferably 60% by mass or more, and particularly preferably 70% by mass or more, relative to the total amount of the second treatment liquid composition. There is no particular upper limit to the water content, but for example, it is preferably 90% by mass or less, and more preferably 85% by mass or less, relative to the total amount of the second treatment liquid composition.

[0143] 1.4.3 Organic Solvents The second processing liquid composition may contain an organic solvent. The same organic solvent as described above for the white inkjet ink composition can be used.

[0144] The organic solvent in the second treatment liquid composition preferably contains polyhydric alcohols, more preferably contains one or more selected from alkanediols and polyols, and even more preferably contains one or more selected from 1,2-alkanediols and compounds having three or more hydroxyl groups. When the organic solvent contains these solvents, it may have superior color development, friction fastness, and texture.

[0145] Furthermore, it is preferable that the organic solvent includes an organic solvent with a standard boiling point exceeding 280°C. When the organic solvent includes an organic solvent with a standard boiling point exceeding 280°C, it may exhibit superior color development, friction fastness, and texture. Examples of organic solvents with a standard boiling point exceeding 280°C include triethylene glycol and glycerin.

[0146] The content of the organic solvent is preferably 5 to 50% by mass, more preferably 8 to 40% by mass, even more preferably 10 to 30% by mass, and 13 to 24% by mass, relative to the total amount of the second treatment liquid composition. This is particularly preferable. When the organic solvent content is within the above range, it may result in superior color development, friction fastness, and texture. Furthermore, the content of organic solvents with a standard boiling point exceeding 280°C is preferably 3 to 30% by mass, more preferably 5 to 25% by mass, even more preferably 5 to 20% by mass, and particularly preferably 6 to 14% by mass, relative to the total amount of the second treatment liquid composition.

[0147] 1.4.4 Surfactants The second processing solution composition may contain a surfactant. The surfactant used can be the same as that used in the above-described white inkjet ink composition for textile printing, and the content and other aspects can also be the same.

[0148] 1.4.5 Other Ingredients The second treatment liquid composition may optionally contain various additives such as resin particles, pH adjusters, preservatives / fungal agents, rust inhibitors, chelating agents, viscosity modifiers, solubilizers, and antioxidants. When such additives are included, the content is preferably 0.1 to 5% by mass, more preferably 0.1 to 3% by mass, and even more preferably 0.1 to 1% by mass, relative to the total amount of the treatment liquid composition.

[0149] 1.4.6 Physical Properties The viscosity and surface tension of the second processing liquid composition are preferably the same as those of the white inkjet ink composition described above.

[0150] 1.4.7 Purpose The second processing liquid composition may be dispensed by an inkjet method. In this case, it is preferable because the processing liquid composition can be easily applied to a predetermined area in a predetermined amount, and the second processing liquid composition can be efficiently adhered.

[0151] 2. Inkjet recording method An inkjet recording method according to one embodiment of the present invention is an inkjet recording method performed using the above-described composition set, comprising: a white inkjet ink attachment step of attaching the printable white inkjet ink composition to a fabric by an inkjet method; a processing liquid attachment step of attaching the processing liquid composition to the area of ​​the fabric to which the printable white inkjet ink composition has been attached; and a transparent ink attachment step of attaching the printable transparent inkjet ink composition to the area of ​​the fabric to which the printable white inkjet ink composition has been attached.

[0152] According to the inkjet recording method of this embodiment, since it is performed using the above-mentioned composition set, it is possible to obtain good color development and texture while achieving better friction fastness.

[0153] The following describes each step of the inkjet recording method according to this embodiment.

[0154] 2.1 White inkjet ink application process The inkjet recording method according to this embodiment includes a white inkjet ink application step, in which the above-mentioned white inkjet ink composition is applied to a fabric by an inkjet method.

[0155] 2.1.1 Application amount In the white inkjet ink application process, the amount of white inkjet ink composition applied per unit area to the fabric is 30 mL / m², from the viewpoint of superior color development. 2 The above is preferable, and 50 mL / m² 2 The above is more preferable: 70 mL / m² 2 The above is even more preferable, 90 mL / m² 2 The above are particularly preferable. In the white inkjet ink application process, the amount of white inkjet ink composition applied per unit area to the fabric is 150 mL / m², from the viewpoint of superior texture and abrasion resistance. 2 The following is preferred: 130 mL / m² 2 The following is more preferable: 110 mL / m² 2 The following is even more preferable: 100 mL / m² 2 The following are particularly preferable.

[0156] 2.1.2 Attachment Order In the inkjet recording method according to this embodiment, the order in which the white inkjet ink application steps are performed is not particularly limited, as long as it allows for the application of a processing liquid composition to the area of ​​the fabric to which the white inkjet ink composition has been applied (as described later), and allows for the application of a transparent ink to the area of ​​the fabric to which the transparent ink composition has been applied (as described later). For example, it is preferable to perform the white inkjet ink application step before the processing liquid application step and the transparent ink application step.

[0157] 2.1.3 Fabric Examples of fabric materials used in the inkjet recording method according to this embodiment include natural fibers such as cotton, linen, wool, and silk; synthetic fibers such as polypropylene, polyester, acetate, triacetate, polyamide, and polyurethane; and biodegradable fibers such as polylactic acid. Blends of these fibers are also acceptable. Among these materials, fabrics made of cotton, polyester, or a blend of cotton and polyester are readily available and therefore preferred.

[0158] Furthermore, examples of fabric forms include cloth, clothing, and other fashion accessories. Cloth includes woven fabrics, knitted fabrics, and nonwoven fabrics. Clothing and other fashion accessories include finished items such as T-shirts, handkerchiefs, scarves, towels, tote bags, cloth bags, curtains, sheets, bedspreads, wallpaper and other furniture, as well as fabrics before and after cutting as components before sewing. These can take the form of long rolls, cut to a predetermined size, or in the shape of finished products.

[0159] The fabric is L * a * b * Lightness L in a color system * It is preferable that the value of L is 70 or less. * The value may be 60 or less, or 50 or less.

[0160] Note L * The values ​​can be measured using a known colorimeter, for example, Spectrolino (Gretag).

[0161] Note L * Examples of fabrics with a value of 70 or less include colored fabrics that have been pre-colored with dyes, and black fabrics are preferred. Examples of dyes used to pre-color fabrics include water-soluble dyes such as acid dyes and basic dyes, disperse dyes used in combination with dispersants (surfactants), and reactive dyes. Known methods can be used to color fabrics with dyes, depending on the material and form of the fabric.

[0162] The fabric used in the inkjet recording method according to this embodiment is preferably a colored cotton fabric. Such fabrics tend to have better friction fastness and white color development.

[0163] 2.2 Processing liquid application process The inkjet recording method according to this embodiment includes a processing liquid application step of applying the above-described processing liquid composition to an area of ​​the fabric to which a printed white inkjet ink composition has been applied.

[0164] 2.2.1 Application Method The method for applying the treatment liquid composition in the treatment liquid application process is not particularly limited, and examples include an immersion coating method in which the fabric is immersed in the treatment liquid composition, a roller coating method in which the treatment liquid composition is applied with a mangle roller or roll coater, a spray coating method in which the treatment liquid composition is sprayed with a spray device, and an inkjet coating method in which the treatment liquid composition is sprayed by an inkjet method.

[0165] The processing solution application process is preferably carried out by a method that allows the processing solution composition to be applied only to the areas to which the white inkjet ink composition has been applied, and is particularly preferably carried out by an inkjet method. When the processing solution application process is carried out by an inkjet method, the coating area and coating amount can be precisely controlled, so that the necessary and sufficient amount of processing solution composition can be applied evenly to the areas to which the white inkjet ink composition has been applied, and consequently tends to be superior in terms of friction fastness and texture.

[0166] 2.2.2 Application amount In the treatment solution application process, the amount of treatment solution composition applied per unit area to the fabric is 3 mL / m², from the viewpoint of superior friction fastness and texture. 2 The above is preferable, 5 mL / m² 2 The above is more preferable: 7 mL / m² 2 The above is even more preferable, 10 mL / m² 2 The above are particularly preferable. In the treatment solution application process, the amount of treatment solution composition applied per unit area to the fabric is 30 mL / m², from the viewpoint of superior friction fastness and texture. 2 The following is preferred: 25 mL / m² 2 The following is more preferable: 20 mL / m² 2 The following is even more preferable: 15 mL / m² 2 The following are particularly preferable.

[0167] 2.2.3 Order of attachment In the inkjet recording method according to this embodiment, the order in which the processing liquid adhesion steps are performed is not particularly limited, as long as the processing liquid composition is applied to the area of ​​the fabric to which the printed white inkjet ink composition has been applied. For example, it may be performed before, after, or simultaneously with the transparent ink adhesion step described later.

[0168] In the inkjet recording method according to this embodiment, the processing liquid application step is preferably performed simultaneously with the transparent ink application step. By applying the processing liquid composition and the transparent inkjet ink composition simultaneously, the particles containing organopolysiloxane tend to disperse better in the ink coating, making the coating itself softer and resulting in a better texture.

[0169] When the processing solution application process and the transparent ink application process are performed simultaneously, it is preferable that the processing solution application process and the transparent ink application process are performed by applying the processing solution composition and the transparent inkjet printing ink composition to the same area of ​​the fabric with the same scan.

[0170] Here, "scanning" refers to moving the inkjet head relative to the recording area on the fabric. In this case, the inkjet head may move relative to the fabric, or the fabric may move relative to the inkjet head. Furthermore, the relative positional relationship between the inkjet head and the fabric may change as both move. The inkjet head can be mounted on a carriage, for example. The inkjet head can also be moved as the carriage moves; in this case as well, it is the movement of the inkjet head.

[0171] Therefore, in the serial inkjet recording device 20 shown in Figure 1, for example, "scanning" is performed while the carriage 234 having the inkjet head 231 moves in a scanning direction SD that intersects the transport direction TD of the recording medium F.

[0172] Furthermore, "scanning" in a line-type inkjet recording device 1, as shown in Figure 3, involves recording being performed while the recording medium F moves relative to a line head 300 having a length corresponding to the width of the recording medium F in a direction intersecting the width direction. In line-type recording, the inkjet head (line head) remains fixed and does not move during recording, and recording is performed in a single scan.

[0173] "Length equivalent to the width of the recording medium" does not necessarily mean that the width of the recording medium and the length (width) of the line head are exactly the same; it may also mean that the length is greater than or equal to the width of the recording medium, or that the length is equivalent to the width of the recording medium (recorded width) on which the ink should be ejected (on which the image should be recorded).

[0174] The time difference between the adhesion of the processing liquid composition and the transparent inkjet printing ink composition in the same area of ​​the fabric is preferably 30 seconds or less, more preferably 15 seconds or less, even more preferably 5 seconds or less, even more preferably 1 second or less, particularly preferably 0.5 seconds or less, and most particularly preferably 0.1 seconds or less. When the time difference is within the above range, the two liquids are well mixed and tend to result in a superior texture.

[0175] 2.3 Transparent ink application process The inkjet recording method according to this embodiment includes a transparent ink application step of applying the above-mentioned transparent inkjet ink composition to an area of ​​the fabric to which the white inkjet ink composition has been applied.

[0176] 2.3.1 Application amount In the transparent ink application process, the amount of transparent inkjet ink composition applied per unit area to the fabric is 6 mL / m², from the viewpoint of superior friction fastness. 2 The above is preferable, and 10 mL / m² 2 The above is more preferable: 15 mL / m² 2 The above is even more preferable, 20 mL / m² 2 The above are particularly preferable. In the transparent ink application process, the amount of transparent inkjet ink composition applied per unit area to the fabric is 60 mL / m², from the viewpoint of superior friction fastness and texture. 2 The following is preferred: 50 mL / m² 2 The following is more preferable: 40 mL / m² 2 The following is even more preferable: 30 mL / m² 2 The following are particularly preferable.

[0177] 2.3.2 Attachment Order In the inkjet recording method according to this embodiment, the order in which the transparent ink adhesion step is performed is not particularly limited, as long as the transparent inkjet ink composition is applied to the area of ​​the fabric to which the white inkjet ink composition has been applied. For example, it may be performed before, after, or simultaneously with the processing liquid adhesion step. The manner in which it is performed simultaneously with the processing liquid adhesion step is as described above.

[0178] 2.4 Second Processing Liquid Application Process The inkjet recording method according to this embodiment may further include a second processing liquid application step of applying the above-described second processing liquid composition to a fabric.

[0179] 2.4.1 Application Method The method of applying the second treatment liquid composition in the second treatment liquid application step is not particularly limited and can be the same as in the treatment liquid application step described above. The second treatment liquid application step involves printing with a white inkjet. It is preferable that the method allows the second processing liquid composition to be applied only to the area to which the ink composition has been applied, and it is particularly preferable that this be done by an inkjet method. When the second processing liquid application step is performed by an inkjet method, the application area and application amount can be precisely controlled, so that the necessary and sufficient amount of the second processing liquid composition can be applied evenly to the area to which the white inkjet ink composition has been applied, and consequently tends to be superior in terms of friction fastness and texture.

[0180] 2.4.2 Application amount In the second treatment solution application step, the amount of the second treatment solution composition applied per unit area to the fabric is 6 mL / m², from the viewpoint of superior color development. 2 The above is preferable, and 10 mL / m² 2 The above is more preferable: 15 mL / m² 2 The above is even more preferable, 20 mL / m² 2 The above are particularly preferable. In the second treatment solution application step, the amount of the second treatment solution composition applied per unit area to the fabric is 60 mL / m², from the viewpoint of superior friction fastness and texture. 2 The following is preferred: 50 mL / m² 2 The following is more preferable: 40 mL / m² 2 The following is even more preferable: 30 mL / m² 2 The following are particularly preferable.

[0181] 2.4.3 Order of attachment When the second treatment liquid composition is applied by an immersion coating method or a roller coating method, the second treatment liquid application step is preferably performed on the fabric in advance, and preferably before the white inkjet ink application step.

[0182] When the second processing liquid composition is applied by an inkjet method, it is preferable that the second processing liquid application step be performed before or simultaneously with the white inkjet ink application step.

[0183] In particular, it is preferable when the second processing liquid application step using the inkjet method is performed simultaneously with the white inkjet ink application step, as this tends to result in a better texture.

[0184] When the second processing solution application step and the white inkjet ink application step are performed simultaneously, it is preferable that the second processing solution application step and the white inkjet ink application step are performed by applying the second processing solution composition and the white inkjet ink composition to the same area of ​​the fabric with the same scan.

[0185] The time difference between the adhesion of the second processing liquid composition and the white inkjet ink composition in the same area of ​​the fabric can be the same as the time difference between the adhesion of the processing liquid composition and the transparent inkjet ink composition in the same area of ​​the fabric described above.

[0186] 2.5 Drying process The inkjet recording method according to this embodiment may include a drying step in which the fabric is dried by heating at 160°C or higher after the processing liquid application step and the transparent ink application step described above. Including such a drying step tends to improve friction fastness.

[0187] The drying method in the drying process is not particularly limited, but examples include heat pressing, belt conveyor oven, atmospheric pressure steam method, high-pressure steam method, thermofix method, and forced air. The heat source during drying is not particularly limited, but examples include infrared lamps.

[0188] The drying temperature is preferably the temperature at which the resin particles that may be contained in the ink are fused together and the medium such as water evaporates. The drying temperature is 160°C or higher, but may also be 100°C to 250°C, 120°C to 230°C, or 150°C to 200°C. The temperature may be below ℃, or between 160℃ and 180℃. Here, the drying temperature in the drying process refers to the surface temperature of the image or other elements formed on the fabric. The drying time is not particularly limited, but is preferably 10 seconds to 10 minutes, more preferably 20 seconds to 5 minutes, and even more preferably 60 seconds to 3 minutes.

[0189] The drying process may be carried out while applying pressure, such as by heat pressing. The pressure to be applied is not particularly limited, but is typically between 1 and 10 N / cm². 2 Preferably, the load is 1 to 8 N / cm². 2 It is more preferable that the load is 1-5 N / cm². 2 It is even more preferable that this be the case.

[0190] 2.6 Other processes The inkjet recording method according to this embodiment may include steps such as washing the recorded fabric with water and heating and drying it again. During the washing, if necessary, a soaping treatment may be performed to wash away any ink or other components that were not fixed to the fabric using a hot soap solution or the like.

[0191] 2.7 Inkjet Recording Devices An inkjet recording apparatus that can be preferably used in the inkjet recording method according to this embodiment will be described.

[0192] As an example of an inkjet recording device, Figure 1 shows a perspective view of a serial printer. As shown in Figure 1, the serial printer 20 comprises a transport unit 220 and a recording unit 230. The transport unit 220 transports the recording medium F supplied to the serial printer to the recording unit 230 and discharges the recorded recording medium outside the serial printer. Specifically, the transport unit 220 has feed rollers and transports the fed recording medium F in the transport direction TD.

[0193] Furthermore, the recording unit 230 includes a carriage 234 on which an inkjet head 231 is mounted, having a nozzle for ejecting the above-mentioned white inkjet ink composition for printing onto the recording medium F sent from the transport unit 220, a nozzle for ejecting the above-mentioned transparent inkjet ink composition for printing, a nozzle for ejecting the above-mentioned processing liquid composition, and a nozzle for ejecting the above-mentioned second processing liquid composition as needed, and a carriage moving mechanism 235 for moving the carriage 234 in the scanning direction SD of the recording medium F.

[0194] Figure 2 shows an example of the nozzle rows on the nozzle surface of the inkjet head 231. In Figure 2, the inkjet head 231 has multiple nozzle rows, numbered A to H, along the scanning direction SD, each consisting of multiple nozzles arranged along the direction (transport direction TD) that intersects the direction in which the inkjet head 231 moves (scanning direction SD). In this case, when the nozzle row for discharging the processing liquid composition is projected along the scanning direction SD, it is possible to arrange it so that at least a portion of it overlaps with the nozzle row for discharging the transparent inkjet ink composition in the transport direction TD, thereby enabling the application of both the processing liquid composition and the transparent inkjet ink composition to the same area of ​​the fabric within the same scan. Similarly, it is also possible to apply both the second processing liquid composition and the white inkjet ink composition to the same area of ​​the fabric within the same scan. The inks to be ejected from each nozzle row are selected as appropriate, but for example, it is preferable to select rows A to B as nozzles for the second processing liquid composition, rows C to D as nozzles for the white inkjet ink composition, rows E to F as nozzles for the transparent inkjet ink composition, and rows G to H as nozzles for ejecting the processing liquid composition.

[0195] In the case of a serial printer, the inkjet head 231 is equipped with a head that is shorter than the width of the recording medium, and the scanning direction S intersects the transport direction TD of the recording medium F. Recording is performed while moving to D. In a serial printer, a head 231 is mounted on a carriage 234 that moves in a predetermined direction, and as the carriage moves, the head moves, ejecting the ink composition, the processing liquid composition, and, if necessary, the second processing liquid composition onto the recording medium. The recording medium may be transported between scans.

[0196] Furthermore, the inkjet device is not limited to the serial printer described above, but may also be a line printer. Figure 3 shows a schematic side view of a line printer as another example of an inkjet recording device. As shown in Figure 3, the line printer 1 comprises a feeding unit 100, a transport mechanism 200 for transporting the recording medium in the transport direction, a line head 300 for ejecting and adhering ink to the recording medium, a control unit 500, and an ejection unit 700.

[0197] The transport mechanism is a mechanism for transporting the recording medium in the transport direction. In Figure 3, a roll-shaped recording medium F is supplied from the feeding unit 100 to the transport mechanism 200, and the transport mechanism 200 is configured to transport the recording medium F sent from the feeding unit 100 to the line head 300. Specifically, the transport mechanism 200 has a first feed roller 201 and a second feed roller 202, and is configured to transport the transported recording medium F to the line head 300 on the downstream side in the transport direction. As for the transport method of the transport mechanism 200, conventionally known methods can be used as appropriate, and one or more rollers, or a belt transported by rollers may be used.

[0198] The line printer 1 has a line head 300 having a length corresponding to the width of the recording medium F. The line head 300 may be composed of multiple line jets, and in Figure 3, the line head 300 is composed of a first line head 310, a second line head 320, a third line head 330, and a fourth line head 340. When it is not necessary to distinguish between the first line head 310, the second line head 320, the third line head 330, and the fourth line head 340, it is simply referred to as the line head 300.

[0199] The line head 300 has cavities for containing a processing liquid composition, a transparent inkjet ink composition for printing, a white inkjet ink composition for printing, and optionally a second processing liquid composition (ink, etc.), an ejection drive unit provided for each cavity, and a nozzle for ejecting the ink, etc. Multiple cavities, and the ejection drive units and nozzles provided for each cavity, may be provided on a single head, independently of each other. The ejection drive unit can be formed using an electromechanical conversion element such as a piezoelectric element that changes the volume of the cavity by mechanical deformation, or an electrothermal conversion element that generates bubbles in the ink by generating heat and ejecting it.

[0200] Preferably, the line head 300 is configured such that, for example, the first line head 310 dispenses the two processing liquid compositions, and the second line head 320 dispenses the white inkjet ink composition for textile printing. This allows the reaction liquid and the transparent ink composition to be applied to the same area of ​​the fabric within the same scanning area. Alternatively, it is preferable that the third line head 330 dispenses the transparent inkjet ink composition for textile printing, and the fourth line head 340 dispenses the processing liquid composition.

[0201] In line printers, the print head is fixed (almost) without moving, and recording is performed in a single scan of the inkjet head. Line printers have an advantage over serial printers in that they have a faster recording speed.

[0202] 3. Examples The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples. Unless otherwise specified, "%" below refers to mass.

[0203] 3.1 Preparation of each ink composition and each processing solution composition Each component was placed in a container to obtain the compositions shown in Table 1 (Figure 4) and Table 2 (Figure 5), mixed and stirred, and then filtered through a 5 μm membrane filter to obtain the white inkjet ink composition (white ink), transparent inkjet ink composition (clear ink), processing solution composition, and second processing solution composition for each example. Unless otherwise specified, the values ​​for each component shown in the table represent mass percent. In the table, the mass percent for pigment, resin particles, and softener represent the solid content concentration, and ion-exchanged water was added so that the total mass of the composition was 100% by mass.

[0204] For the titanium dioxide pigment, a titanium dioxide dispersion (TiO2 slurry) prepared in advance by the following procedure was used. CI Pigment White 6 (specific gravity: 4.2 g / mL) was used as the pigment, and a resin dispersant was used as the pigment dispersant. Specifically, a styrene-acrylic resin synthesized using 55% by mass of styrene, 20% by mass of acrylic acid, and 30% by mass of methyl methacrylate was used. Three parts by mass of pigment were mixed with one part by mass of dispersant and ten parts by mass of ion-exchanged water. After premixing the resulting mixture, it was dispersed using a bead mill disperser (Kotobuki Kogyo Co., Ltd., UAM-015) with 0.03 mm diameter zirconia beads at a peripheral speed of 10 m / s and a liquid temperature of 30°C for 15 minutes. Coarse particles were then centrifuged using a centrifuge (Kuboyama Shoji Co., Ltd., Model-3600) to obtain a titanium dioxide dispersion.

[0205] Although not shown in the table, the following composition was obtained by placing each component in a container, mixing and stirring with a magnetic stirrer for 2 hours, and then filtering through a membrane filter with a pore size of 5 μm to obtain a color ink composition for use in color printing. Details of "Hydran WLS-201" and "Orphine E1010" will be provided later. The values ​​in the table represent the content. Furthermore, the content of "Hydran WLS-201" in the table represents the solid content concentration. (Color ink composition) Pigment blue 15:3 dispersion, 4.0% by mass Hydran WLS-201 6.0% by mass Glycerin 8.0% by mass Ethylene glycol 7.0% by mass 1,2-Hexanediol 1.0% by mass KOH 0.2% by mass Triethanolamine 1.0% by mass Olfine E1010 0.5% by mass Water level

[0206] Further explanation is provided regarding the information in Tables 1 and 2.

[0207] <White ink> [Pigments] • ROPAQUE HT1432 (product name of Dow Chemical Company, styrene-acrylic resin, hollow particles) [Resin particles] • Hydran WLS-201 (product name, manufactured by DIC Corporation, made of urethane resin) [Surfactants] • Orphine E1010 (product name, manufactured by Nisshin Chemical Industry Co., Ltd., acetylene glycol-based surfactant)

[0208] <Processing liquid composition> [Fabric softener] • K-45 (Product name "High Softer (registered trademark) K-45", manufactured by Meisei Chemical Industry Co., Ltd., particles containing dimethyl silicone and organopolysiloxane, nonionic) • POLON-MF-14 (product name, manufactured by Shin-Etsu Chemical Co., Ltd., amine-modified silicone emulsion, particles containing organopolysiloxane, nonionic) • X-51-1264 (Product name, manufactured by Shin-Etsu Chemical Co., Ltd., epoxy-modified silicone emulsion, particles containing organopolysiloxane, anionic) • DCOM35-6 (product name, manufactured by Takamatsu Oil & Fat Co., Ltd., special polyester resin, nonionic)

[0209] <Clear Ink> [Resin particles] • Takerack W-6061 (product name, manufactured by Mitsui Chemicals, Inc., made of urethane resin) [Surfactants] • Orphine E1010 (product name, manufactured by Nisshin Chemical Industry Co., Ltd., acetylene glycol-based surfactant)

[0210] <Second treatment solution composition> • Unisense KHE103L (product name, manufactured by Senka Co., Ltd., epichlorohydrin-based cationic resin) [Surfactants] • Orphine E1010 (product name, manufactured by Nisshin Chemical Industry Co., Ltd., acetylene glycol-based surfactant)

[0211] In Tables 1 and 2, "Offline" and "IJ" in the "Application Method" column refer to the following: "Offline": The fabric used in each example is padded with the second processing liquid composition for each example using the pad method to achieve a wringing ratio of 60%, and then dried at 100°C for 2 minutes. The printing is performed using the fabric. "IJ": The second processing liquid composition for each example is applied to the fabric by the inkjet method.

[0212] In Tables 1 and 2, (1) to (5) in the "Printing Order" indicate the following order: (1): In the first scan, white ink is applied to the fabric. In the second scan, clear ink is applied to the areas of the fabric where white ink has been applied. In the third scan, the treatment solution composition is applied to the areas of the fabric where white ink has been applied.

[0213] (2): In the first scan, the second processing liquid composition is applied to the fabric by an inkjet method. In the second scan, white ink is applied to the fabric. In the third scan, clear ink is applied to the areas of the fabric where white ink has been applied. In the fourth scan, the processing solution composition is applied to the areas of the fabric where white ink has been applied.

[0214] (3): In the first scan, the second treatment liquid composition and the white ink are made to adhere to the same area on the fabric in the same scan. In the second scan, the treatment liquid composition and the clear ink are made to adhere to the area of the fabric where the white ink has adhered in the same scan.

[0215] (4): In the first scan, the white ink is made to adhere to the fabric. In the second scan, the clear ink is made to adhere to the area of the fabric where the white ink has adhered.

[0216] (5): In the first scan, the white ink is made to adhere to the fabric. In the second scan, the treatment liquid composition is made to adhere to the area of the fabric where the white ink has adhered.

[0217] 3.2 Preparation of the Impression <Settings at the time of impression> For the impression, a device obtained by modifying ML-8000 (manufactured by Seiko Epson Corporation) was used. The resolution at the time of impression was set to 1200 dpi × 1200 dpi, and the amount of penetration when printing at Duty 100% was set to 24.3 mL / m 2 so as to be. The adhesion of the white ink to the fabric was set to Duty 400%, the adhesion of the treatment liquid composition to the fabric was set to Duty 50%, the adhesion of the clear ink to the fabric was set to Duty 100%, and the adhesion of the second treatment liquid composition to the fabric by the inkjet method was set to Duty 100%.

[0218] <Impression method (only white)> Based on the printing order of each example described in Tables 1 and 2, each composition was made to adhere to the fabric. Thereafter, heat treatment was performed at 160 °C or 140 °C for 3 minutes using an oven. Hereinafter, an impression printed without using the color ink composition is referred to as a "white impression".

[0219] <Impression method (color)> Each composition was applied to the fabric according to the printing order of the examples described in Tables 1 and 2. At this time, in the "Printing Order" section of Tables 1 and 2, an additional scan was performed to apply the color ink composition with a duty cycle of 100% to the area of ​​the fabric where the white ink had been applied, following the scan that applied the white ink. After that, the fabric was heated in an oven at 160°C or 140°C for 3 minutes. Hereinafter, the printed material made using the color ink composition will be referred to as "color printed material".

[0220] 3.3 Evaluation Method 3.3.1 Color development For the white printed materials related to each of the examples obtained above, the colorimeter Gretag Macbeth Using Spectrolino (manufactured by X-Rite), CIE / L * a * b * In color systems, L * The values ​​were measured, and the color development was evaluated based on the following evaluation criteria. (Evaluation Criteria) AA:L * 80 or more A:L * 75 or higher B:L * 70 or more C:L * Under 70

[0221] 3.3.2 (Dry) Friction fastness For each of the color prints obtained above, a drying test was conducted according to the ISO 105 X12 standard, and the (dry) friction fastness was evaluated based on visual observation and the following evaluation criteria. (Evaluation Criteria) AA: No chipping or peeling. A: The surface looks rough, but there is no peeling. C: Peeling present

[0222] 3.3.3 Texture The texture of the white printed fabrics obtained in each of the above examples was evaluated by sensory evaluation. Specifically, five random judges were asked to respond with either "It is comparable to the original feel of the fabric" or "The printed fabric is stiff and the original feel of the fabric is compromised," and the evaluation was carried out according to the following criteria. (Evaluation Criteria) AA: Five judges responded that it was "indistinguishable from the original texture of the fabric." A: Three to five judges responded that the fabric had "no inferiority to its original texture." B: Between 1 and 3 judges responded that the fabric's texture was "indistinguishable from the original fabric's texture." C: Zero judges responded that the fabric had "no inferiority to its original texture."

[0223] 3.3.4 Continuous Printing Stability After 1 hour of continuous printing under the "white print" printing conditions, a nozzle check was performed, the number of missing nozzles was counted, and the continuous printing stability was evaluated based on the following evaluation criteria. The number of missing nozzles was the average of 5 tests. (Evaluation Criteria) AA: 0 to less than 0.5 A: 0.5 to less than 1 B: 1 to less than 2 C: 2 or more

[0224] 3.4 Evaluation Results The evaluation results are shown in Tables 1 and 2. As shown in Tables 1 and 2, in each example using a composition set comprising a printable white inkjet ink composition, a printable transparent inkjet ink composition, and a processing liquid composition, wherein the printable white inkjet ink composition contains titanium dioxide pigment and water, the printable transparent inkjet ink composition contains resin particles and water, and the processing liquid composition contains organopolysiloxane-containing particles and water, better friction fastness was obtained while also achieving good color development and texture.

[0225] On the other hand, in each of the comparative examples using a composition set that does not satisfy the above configuration, at least one of the friction fastness, color development property, and texture was inferior.

[0226] The following content is derived from the above-described embodiments.

[0227] One aspect of the composition set is a composition set including a resist white inkjet ink composition, a resist transparent inkjet ink composition, and a treatment liquid composition, wherein the resist white inkjet ink composition contains a titanium oxide pigment and water, the resist transparent inkjet ink composition contains resin particles and water, and the treatment liquid composition contains particles containing an organopolysiloxane and water.

[0228] In one aspect of the above composition set, the organopolysiloxane may be a nonionic silicone.

[0229] In any aspect of the above composition set, the organopolysiloxane may be dimethyl silicone.

[0230] In any aspect of the above composition set, the content of the particles containing the organopolysiloxane may be 5 to 15% by mass with respect to the total amount of the treatment liquid composition.

[0231] In any aspect of the above composition set, the treatment liquid composition may be discharged and used by an inkjet method.

[0232] In any aspect of the above composition set, the content of the titanium oxide pigment may be 8.3 to 11.8% by mass with respect to the total amount of the resist white inkjet ink composition.

[0233] In any embodiment of the above composition set, The aforementioned white inkjet ink composition may further contain 3.0 to 20.0% by mass of resin particles.

[0234] In any embodiment of the above composition set, The content of the resin particles in the transparent inkjet ink for printing, relative to the content of the resin particles in the white inkjet ink for printing, may be 1.2 or more.

[0235] In any embodiment of the above composition set, The content of the resin particles may be 7.0% by mass or more relative to the total amount of the transparent inkjet ink composition used for printing.

[0236] In any embodiment of the above composition set, The second treatment liquid composition may further include a coagulant that aggregates the components in the ink, and water.

[0237] In any embodiment of the above composition set, The second processing liquid composition may be dispensed by an inkjet method.

[0238] In any embodiment of the above composition set, The flocculant may be a polyvalent metal salt.

[0239] In any embodiment of the above composition set, The amount of the flocculant may be 3.5 to 8.5% by mass relative to the total amount of the second treatment liquid composition.

[0240] In any embodiment of the above composition set, The amount of particles containing the organopolysiloxane in the processing liquid composition may be greater than the amount of resin particles in the white inkjet ink composition used for printing.

[0241] In any embodiment of the above composition set, The amount of particles containing the organopolysiloxane in the processing liquid composition may be less than the amount of resin particles in the transparent inkjet ink composition used for printing.

[0242] One aspect of an inkjet recording method is: An inkjet recording method using a composition set according to any of the above embodiments, The process involves a white inkjet ink application step, in which the aforementioned white inkjet ink composition is applied to the fabric by an inkjet method, The process involves applying the processing liquid composition to the area of ​​the fabric to which the printed white inkjet ink composition has been applied, and The method includes a transparent ink application step of applying the transparent ink printing ink composition to an area of ​​the fabric to which the white ink printing ink composition has been applied.

[0243] In one embodiment of the above inkjet recording method, The processing liquid application step may be performed simultaneously with the transparent ink application step.

[0244] In any embodiment of the above inkjet recording method, The aforementioned composition set further comprises a second treatment liquid composition containing a coagulant for agglomerating components in the ink and water, The process further comprises a second processing liquid application step, in which the second processing liquid composition is applied to the fabric by an inkjet method. The second processing liquid application step may be performed simultaneously with the white inkjet ink application step.

[0245] In any embodiment of the above inkjet recording method, The process may include a drying step in which the fabric is dried by heating to 160°C or higher, after the processing liquid application step and the transparent ink application step.

[0246] In any embodiment of the above inkjet recording method, The aforementioned fabric may be a colored cotton fabric.

[0247] The present invention is not limited to the embodiments described above, and various modifications are possible. For example, the present invention includes configurations that are substantially identical to the configurations described in the embodiments, for example, configurations that have the same function, method and result, or configurations that have the same purpose and effect. The present invention also includes configurations in which non-essential parts of the configurations described in the embodiments are replaced. Furthermore, the present invention includes configurations that produce the same effects or achieve the same purpose as the configurations described in the embodiments. Furthermore, the present invention includes configurations that add known technology to the configurations described in the embodiments. [Explanation of symbols]

[0248] 20...Serial printer, 220...Transport unit, 230...Recording unit, 231...Inkjet head, 234...Carriage, 235...Carriage movement mechanism, 1...Line printer, 100...Feeding unit, 200...Transport mechanism, 201...First feed roller, 202...Second feed roller, 300...Line head, 310...First line head, 320...Second line head, 330...Third line head, 340...Fourth line head, 500...Control unit, Y...Feeding direction, F...Recording medium, SD...Scanning direction, TD...Transport direction.

Claims

1. This composition set comprises a white inkjet ink composition for printing, a transparent inkjet ink composition for printing, and a processing solution composition. The aforementioned white inkjet ink composition for textile printing contains titanium dioxide pigment and water. The aforementioned transparent inkjet ink composition for printing contains resin particles and water. The aforementioned processing liquid composition contains particles containing organopolysiloxane and water. Composition set.

2. The composition set according to claim 1, wherein the organopolysiloxane is a nonionic silicone.

3. The composition set according to claim 1, wherein the organopolysiloxane is dimethyl silicone.

4. The composition set according to claim 1, wherein the content of particles containing the organopolysiloxane is 5 to 15% by mass relative to the total amount of the treatment liquid composition.

5. The composition set according to claim 1, wherein the processing liquid composition is dispensed and used by an inkjet method.

6. The composition set according to claim 1, wherein the content of the titanium dioxide pigment is 8.3 to 11.8% by mass relative to the total amount of the white inkjet ink composition for printing.

7. The composition set according to claim 1, wherein the aforementioned white inkjet ink composition for textile printing further contains 3.0 to 20.0% by mass of resin particles.

8. The composition set according to claim 7, wherein the content of the resin particles in the transparent inkjet ink for printing is 1.2 or more relative to the content of the resin particles in the white inkjet ink for printing composition.

9. The composition set according to claim 1, wherein the content of the resin particles is 7.0% by mass or more with respect to the total amount of the transparent inkjet ink composition for printing.

10. The composition set according to claim 1, further comprising a second treatment liquid composition containing a coagulant for agglomerating components in ink and water.

11. The composition set according to claim 10, wherein the second processing liquid composition is dispensed by an inkjet method.

12. The composition set according to claim 10, wherein the flocculant is a polyvalent metal salt.

13. The composition set according to claim 10, wherein the content of the flocculant is 3.5 to 8.5% by mass with respect to the total amount of the second treatment liquid composition.

14. The composition set according to claim 7, wherein the content of particles containing the organopolysiloxane in the processing liquid composition is greater than the content of resin particles in the white inkjet ink composition for printing.

15. The amount of particles containing the organopolysiloxane in the processing liquid composition is The composition set according to claim 1, wherein the content of the resin particles is less than that of the transparent dye inkjet ink composition.

16. An inkjet recording method using the composition set described in claim 1, The process includes a step of applying the aforementioned white inkjet ink composition to a fabric using an inkjet method, and The process involves applying the processing liquid composition to the area of ​​the fabric to which the printed white inkjet ink composition has been applied, and An inkjet recording method comprising a transparent ink application step of applying the transparent inkjet ink composition to an area of ​​a fabric to which the white inkjet ink composition has been applied.

17. The inkjet recording method according to claim 16, wherein the processing liquid application step is performed simultaneously with the transparent ink application step.

18. The aforementioned composition set further comprises a second treatment liquid composition containing a coagulant for agglomerating components in the ink and water, The process further comprises a second processing liquid application step, in which the second processing liquid composition is applied to the fabric by an inkjet method. The inkjet recording method according to claim 16, wherein the second processing liquid application step is performed simultaneously with the white inkjet ink application step.

19. The inkjet recording method according to claim 16, further comprising a drying step of drying the fabric by heating to 160°C or higher after the processing liquid application step and the transparent ink application step.

20. The inkjet recording method according to claim 16, wherein the fabric is a colored cotton fabric.

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