Printing Recording Method

Abstract

To provide a printing recording method capable of combining excellent friction fastness and excellent reduction of see through.SOLUTION: A printing recording method includes the steps of: adhering droplets of a colored ink composition containing a pigment and anionic first resin particles to a fabric; adhering the droplets of a treatment liquid containing a cationic compound to the fabric; and applying droplets of a non-color ink composition containing anionic second resin particles to the fabric, and all of the above steps are performed by an inkjet method. The inkjet method includes: a simultaneous deposition step in which an inkjet head 42 is moved in a direction perpendicular to a conveyance direction of a fabric 95 to perform recording main scans multiple times and the treatment liquid and the colored ink composition are deposited on the same scan area of the fabric by the same main scan; and a post-deposition step in which the non-colored ink composition is deposited on the same scan area of the fabric by a main scan different from the simultaneous deposition step.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a method for recording data using a textile print. [Background technology]

[0002] Conventionally, when manufacturing printed materials by dyeing fabrics and other substrates with pigments and other colorants using an inkjet method, a technique is known in which the substrate is pre-treated with a treatment solution containing cationic compounds to improve the color development of the colorants. Among these, a recording method is being investigated that performs the pre-treatment and ink application processes in a single recording device.

[0003] For example, Patent Document 1 describes a wet-on-wet inkjet printing method in which, in printing using an ink composition containing a pigment, the steps from applying a pretreatment solution containing a polyvalent metal compound to applying the ink are performed without a drying step. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2016-089288 [Overview of the project] [Problems that the invention aims to solve]

[0005] However, this type of configuration has the drawback of being prone to bleeding and poor friction fastness. It is known that friction fastness can be improved by applying a resin-containing coating solution after ink application. However, in conventional wet-on-wet printing methods, applying the coating solution further resulted in excessive moisture on the fabric, causing the ink to penetrate to the back of the fabric (bleed-through). In other words, good friction fastness and a good reduction in bleed-through could not be achieved simultaneously. [Means for solving the problem]

[0006] One embodiment of the printing recording method according to the present invention is: A colored ink application step in which droplets of a colored ink composition containing a pigment and anionic first resin particles are attached to a fabric, A treatment solution application step in which droplets of a treatment solution containing a cationic compound are attached to the fabric, The process includes a non-colored ink application step of applying droplets of a non-colored ink composition containing anionic second resin particles to the fabric, The processing liquid application step, the colored ink application step, and the non-colored ink application step are performed by an inkjet method. The aforementioned inkjet method involves performing multiple main scans, in which the inkjet head is moved perpendicular to the fabric transport direction to record the data. A simultaneous adhesion step in which the processing liquid and the colored ink composition are applied to the same scanning area of ​​the fabric by the same main scan, A post-adhesion step is performed after the simultaneous adhesion step, in which the non-colored ink composition is adhered to the same scanning area of ​​the fabric by a main scan different from the simultaneous adhesion step. It possesses the following characteristics. [Brief explanation of the drawing]

[0007] [Figure 1] A schematic diagram of an inkjet printing apparatus applicable to the printing recording method according to this embodiment. [Figure 2] A schematic diagram showing an example of the arrangement of inkjet heads in an inkjet textile printing device. [Figure 3] A schematic diagram showing an example of the arrangement of inkjet heads in an inkjet textile printing device. [Modes for carrying out the invention]

[0008] 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, and includes various modifications that can be implemented without changing the gist of the present invention. Not all of the configurations described below are necessarily essential to the present invention.

[0009] 1. Printing Recording Method A textile printing recording method according to one embodiment of the present invention comprises a colored ink attachment step of attaching droplets of a colored ink composition containing a pigment and an anionic first resin particle to a fabric, a processing liquid attachment step of attaching droplets of a processing liquid containing a cationic compound to a fabric, and a non-colored ink attachment step of attaching droplets of a non-colored ink composition containing anionic second resin particle to the fabric, wherein the processing liquid attachment step, the colored ink attachment step, and the non-colored ink attachment step are performed by an inkjet method, the inkjet method involves performing multiple main scans in which the inkjet head is moved perpendicular to the fabric transport direction for recording, and includes a simultaneous attachment step of attaching the processing liquid and the colored ink composition to the same scanning area of ​​the fabric by the same main scan, and a post-attachment step after the simultaneous attachment step of attaching the non-colored ink composition to the same scanning area of ​​the fabric by a main scan different from the simultaneous attachment step.

[0010] Conventionally, when manufacturing printed materials by dyeing fabrics and other substrates with pigments using an inkjet method, a technique is known to pre-treat the substrate using a treatment solution containing cationic compounds to improve the color development of the pigments. In inkjet pigment printing, this pre-treatment is usually performed using separate equipment / facilities, such as immersion methods. However, such methods not only require the use of separate equipment / facilities, but also complicate the process and require specialized know-how. Furthermore, the discharge of waste liquid is undesirable from an environmental perspective.

[0011] Therefore, in inkjet pigment printing, a recording method (pretreatment in-line process) has been studied in which a pretreatment liquid process and an ink adhesion process, which are performed to reduce ink bleeding and improve color development, are carried out using a single recording device. With such a method, the process can be simplified and the discharge of waste liquid can be eliminated. In particular, the wet-on-wet method, which omits drying between the pretreatment liquid process and the ink adhesion process, also has advantages in terms of downsizing and speeding up of the device. On the other hand, the recording method of the wet-on-wet method has problems in that it is liable to be inferior in bleeding, color development, and rubbing fastness. This is presumably due to an increase in the amount of moisture on the fabric. That is, when the amount of moisture on the fabric is large, bleeding is likely to occur, and when the amount of moisture on the fabric is large, the aggregation reaction between the treatment liquid and the ink is difficult to proceed, resulting in poor color development. Furthermore, when the amount of moisture on the fabric is large, drying is likely to be insufficient, resulting in poor rubbing fastness.

[0012] Here, a recording method including a step of further applying a coating liquid containing a resin after ink adhesion is known for improving rubbing fastness. However, in the conventional printing recording method of the wet-on-wet method, there has also been a problem that the amount of moisture on the fabric becomes excessive by further applying the coating liquid, and penetration (bleeding to the back side) occurs on the back side of the fabric.

[0013] On the other hand, the printing recording method according to the present embodiment newly finds that by having a step of simultaneously adhering a treatment liquid and an ink and a step of subsequently adhering a coating liquid, good rubbing fastness can be obtained and bleeding to the back side can be reduced well. Also, regarding color development It was also possible to obtain good results. When the treatment liquid and the ink adhere simultaneously, they are more likely to mix with each other. As a result, thickening and aggregation of the ink are further promoted, and the ink components are more likely to remain near the surface of the fabric. Therefore, it is presumed that this contributes to reducing bleeding and improving color development. Also, by simultaneously adhering the treatment liquid and the ink and delaying the adhesion of the coating liquid slightly, the treatment liquid and the coating liquid are more likely to react with each other. As a result, thickening and aggregation are further promoted in the coating liquid, and the coating liquid layer is more likely to be formed on the outermost layer. In addition, by causing the resin particles and the cationic compound to react more, the layer can be made tougher. Therefore, it is presumed that this contributes to reducing bleeding and also improving rubbing fastness.

[0014] The resist printing method according to this embodiment is performed on a fabric. The material constituting the fabric is not particularly limited, and examples include natural fibers such as cotton, hemp, wool, and silk, synthetic fibers such as polypropylene, polyester, acetate, triacetate, polyamide, and polyurethane, biodegradable fibers such as polylactic acid, and the like, and these blended fibers may also be used.

[0015] The fabric preferably has a hydroxyl group. Examples of such fabrics include fabrics containing cellulose such as cotton and hemp, and fabrics containing polyurethane. When the fabric has a hydroxyl group, a crosslinking reaction may occur between the cationic compound contained in the treatment liquid described later and the hydroxyl group of the fabric, and in some cases, the effect of improving color development by thickening and aggregation and improving rubbing fastness by improving the adhesion between the fabric and the recording layer can be obtained.

[0016] The fabric may be made from the above-mentioned fibers in any form, such as woven, knitted, or nonwoven. Furthermore, the basis weight of the fabric used in this embodiment is not particularly limited and may be between 1.0 oz and 10.0 oz, preferably between 2.0 oz and 9.0 oz, more preferably between 3.0 oz and 8.0 oz, and even more preferably between 4.0 oz and 7.0 oz. Good recording can be achieved if the basis weight of the fabric is within this range. Moreover, the printing recording method according to this embodiment can be applied to multiple types of fabrics with different basis weights, and good printing can be achieved.

[0017] In this embodiment, examples of fabrics include cloth, clothing, and other fashion accessories. Cloths include woven fabrics, knitted fabrics, nonwoven fabrics, etc. Clothing and other fashion accessories include sewn 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 parts before sewing. These forms include long rolls, cut to predetermined sizes, and product shapes.

[0018] As the fabric, cotton fabric that has been pre-colored with dye may be used. Examples of dyes used to pre-color the fabric include water-soluble dyes such as acid dyes and basic dyes, disperse dyes used in combination with dispersants, and reactive dyes. When using cotton fabric, it is preferable to use a reactive dye suitable for dyeing cotton.

[0019] The following describes each step of the printing recording method according to this embodiment.

[0020] 1.1 Colored ink application process The printing recording method according to this embodiment includes a colored ink application step of applying droplets of a colored ink composition containing a pigment and anionic first resin particles to a fabric.

[0021] The amount of colored ink composition applied is 10-21 mg / inch per unit area of ​​the recording area of ​​the fabric.2 Preferably, it is 12-20 mg / inch 2 It is more preferable that the concentration be 14-19 mg / inch 2 It is even more preferable that the concentration be 15-18 mg / inch 2 It is particularly preferable that the amount of colored ink composition adheres within the above range, which tends to result in a good balance of friction fastness, bleed-through, and color development.

[0022] 1.1.1 Colored ink compositions The colored ink composition used in the printing recording method according to this embodiment contains a pigment and anionic first resin particles. The components contained in the colored ink composition will be described below.

[0023] 1.1.1.1 Pigments The colored ink composition used in the printing recording method according to this embodiment contains a pigment. For example, inorganic pigments and organic pigments can be used as the pigment. A pigment is a type of colorant. Examples of colorants include pigments and dyes.

[0024] Inorganic pigments are not particularly limited, but examples include carbon blacks such as furnace black, lamp black, acetylene black, and channel black; and white inorganic oxides such as iron oxide, titanium oxide, zinc oxide, and silica.

[0025] Examples of carbon blacks include CI (Colour Index Generic Name) Pigment Black 1, 7, and 11. Commercially available carbon blacks may also be used, such as Mitsubishi Chemical's No. 2300, No. 900, MCF88, No. 33, No. 40, No. 45, No. 52, MA7, MA8, MA100, and No. 2200B; Columbia Carbon's Raven (registered trademark) 5750, 5250, 5000, 3500, 1255, and 700; CABOT's Rega1 (registered trademark) 400R, 330R, and 660R; Mogul (registered trademark) L; and Monarch (registered trademark) 700, 800, 880, 900, 1000, 1100, 1300, and 1400; and Degussa's Color Black. Examples include FW1, FW2, FW2V, FW18, FW200, S150, S160, S170, Printex® 35, U, V, 140U, and SpecialBlack 6, 5, 4A, 4.

[0026] Examples of organic pigments include quinacridone pigments, quinacridone quinone pigments, dioxazine pigments, phthalocyanine pigments, anthrapyrimidine pigments, ancenthrone pigments, indanthrone pigments, flavanthrone pigments, perylene pigments, diketopyrrolopyrrole pigments, perinone pigments, quinophthalone pigments, anthraquinone pigments, thioindigo pigments, benzimimidazolone pigments, isoindolinone pigments, azomethine pigments, or azo pigments.

[0027] Specific examples of organic pigments include the following:

[0028] Examples of cyan pigments include CI Pigment Blue 1, 2, 3, 15:3, 15:4, 15:34, 16, 22, 60, etc.; CI Bat Blue 4, 60, etc. Preferably, one or more mixtures selected from the group consisting of CI Pigment Blue 15:3, 15:4, and 60 can be exemplified.

[0029] Examples of magenta pigments include CI Pigment Red 5, 7, 12, 48(Ca), 48(Mn), 57(Ca), 57:1, 112, 122, 123, 168, 184, 202, and CI Pigment Violet 19. Preferably, one or more mixtures selected from the group consisting of CI Pigment Red 122, 202, and 209, and CI Pigment Violet 19 can be exemplified.

[0030] Yellow pigments include CI Pigment Yellow 1, 2, 3, 12, 13, and 14C. Examples include 16, 17, 73, 74, 75, 83, 93, 95, 97, 98, 119, 110, 114, 128, 129, 138, 150, 151, 154, 155, 180, 185, etc. Preferably, one or more mixtures selected from the group consisting of CI Pigment Yellow 74, 109, 110, 128, 138, 150, and 180 can be exemplified.

[0031] Other colored pigments can also be used. For example, orange pigment and green pigment can be used.

[0032] Pigments may be used individually or in combination of two or more types.

[0033] Furthermore, to improve the dispersibility of the pigment in the colored ink composition, it is preferable to surface-treat the pigment or to incorporate a dispersant.

[0034] Pigment surface treatment refers to a process that directly or indirectly attaches functional groups, such as carbonyl groups, carboxyl groups, aldehyde groups, hydroxyl groups, sulfone groups, ammonium groups, and salts thereof, to the surface of a pigment through physical or chemical treatment.

[0035] When a dispersant is added to a colored ink composition, it is preferable to use a dispersant that has both a hydrophobic portion (hydrophobic group) and a hydrophilic portion (hydrophilic group) in its molecular structure. Such a dispersant has the effect that the hydrophobic portion is adsorbed onto the surface of the pigment particles, and the hydrophilic portion is oriented toward the aqueous medium side of the colored ink composition. This effect tends to make it possible to include the pigment more stably as a dispersion in the colored ink composition. Such dispersants are not particularly limited, but examples include acrylic resins, styrene-(meth)acrylic acid copolymers, styrene-(meth)acrylic acid-(meth)acrylate copolymers and other styrene-acrylic resins, styrene-maleic acid resins, and their salts, formalin condensates of aromatic sulfonates, and one or more selected from this group can be used. Commercially available dispersants may also be used.

[0036] Alternatively, a method may be used in which the pigment particles are coated with a resin or other material to impart dispersibility. Possible methods for coating the pigment particles include acid precipitation, phase inversion emulsification, and miniemulsion polymerization.

[0037] The pigment content can be adjusted as appropriate depending on the application, but is preferably 0.1% to 17.0% by mass, more preferably 0.2% to 15.0% by mass, even more preferably 1.0% to 10.0% by mass, and particularly preferably 2.0% to 5.0% by mass, relative to the total amount of the colored ink composition. When the pigment content is within the above range, the ejection performance when ejecting by the inkjet method tends to be improved.

[0038] In addition, the colored ink composition may contain dyes as colorants other than the pigments mentioned above. Examples of dyes include acid dyes, reactive dyes, and direct dyes.

[0039] 1.1.1.2 First resin particle The colored ink composition used in the printing recording method according to this embodiment contains anionic first resin particles. Here, the resin particles are particles containing resin, and can be used in either an emulsion state or a solution state, but it is preferable to use them in an emulsion state in order to suppress the increase in viscosity of the ink. Examples of anionic first resin particles include those in which the resin constituting the resin particles has anionic groups, and it is sufficient if the resin constituting the resin particles, as described later, has anionic groups. Examples of nionic groups include sulfonic acid groups, carboxyl groups, phosphate groups, and hydroxyl groups, and multiple such groups may be present. The first resin particles may contain the same resin as the second resin particles described later, or they may contain a different resin.

[0040] Examples of resins include urethane resin, polycarbonate resin, (meth)acrylic resin, styrene resin, silicone resin, styrene-acrylic resin, fluorene resin, polyolefin resin, rosin-modified resin, terpene resin, polyester resin, polyamide resin, epoxy resin, vinyl chloride resin, vinyl chloride-vinyl acetate copolymer, and ethylene vinyl acetate resin. These resins may be used individually or in combination of two or more.

[0041] The first resin particles preferably contain urethane resin or (meth)acrylic resin, more preferably contain urethane resin, and even more preferably contain urethane resin. When the first resin particles contain urethane resin, it is preferable that the first resin particles are urethane resin, as this allows the urethane resin to react with cationic compounds such as cationic polymers that may be contained in the processing liquid described later, which may further promote the aggregation and thickening effect, resulting in better color development, friction fastness, and bleed-through (smudge-through).

[0042] Urethane resins are resins that have urethane bonds in their molecules. Besides urethane bonds, other types of urethane resins include polyether-type urethane resins containing ether bonds in the main chain, polyester-type urethane resins containing ester bonds in the main chain, and polycarbonate-type urethane resins containing carbonate bonds in the main chain. Multiple types of these urethane resins can be used in combination.

[0043] Commercially available urethane resins include ETERNACOLL UW-1501F, UW-1527F, UW-5002 (all product names from Ube Industries), Takelac WS-5000, W-6061, W-6110, WS-5984, WS-5100 (all product names from Mitsui Chemicals), Permarin UA-150, UA-200, U-Coat UX-390 (all product names from Sanyo Chemical Industries), and Hydran WLS-210 (product name from DIC).

[0044] Polycarbonate resin is a resin that has polycarbonate bonds within its molecule. When urethane resin is not used, it is preferable to use polycarbonate resin instead.

[0045] Examples of commercially available (meth)acrylic resins include Movinyl 966A and 6760 (product names of Nippon Synthetic Chemical Co., Ltd.), which are acrylic resins.

[0046] (Meth)acrylic resin refers to a resin having a (meth)acrylic skeleton. While not particularly limited, examples of (meth)acrylic resins include polymers of (meth)acrylic monomers such as (meth)acrylic acid and (meth)acrylic acid esters, and copolymers of (meth)acrylic monomers with other monomers. Other monomers include vinyl monomers such as styrene. In this specification, "(meth)acrylic" is a concept that includes both "methacrylic" and "acrylic."

[0047] Commercially available silicone resins include POLON-MF014, POLON-MF-18T, POLON-MF-33, KM-2002-T (all product names from Shin-Etsu Silicone Co., Ltd.), WACKER FINISH WR1100, NP2406, POWERSOFT FE 55, and TS2406 (all product names from Asahi Kasei Corporation).

[0048] The acid value of the resin contained in the first resin particles is not particularly limited, but is preferably 1 to 300 KOH mg / g, more preferably 10 to 200 KOH mg / g, and even more preferably 20 to 100 KOH mg / g. When the acid value of the resin is within the above range, the resin particles tend to be anionic.

[0049] The content of the first resin particles is preferably 1% by mass or more, more preferably 2 to 20% by mass, and even more preferably 3 to 10% by mass, based on the solid content relative to the total amount of the colored ink composition. When the content of the first resin particles is within the above range, friction fastness and bleed-through tend to be improved.

[0050] 1.1.1.3 Organic Solvents The colored ink composition used in the printing recording method according to this embodiment may contain an organic solvent. Preferably, the organic solvent contains a polyhydric alcohol, and more preferably, a polyhydric alcohol with a standard boiling point of 250°C or higher. The type of organic solvent used can be the same as that of the processing solution described later.

[0051] The content of polyhydric alcohols with a standard boiling point of 250°C or higher in the colored ink composition is preferably 1% by mass or more, more preferably 5% by mass or more, even more preferably 10% by mass or more, even more preferably 13% by mass or more, and particularly preferably 15% by mass or more, relative to the total amount of the colored ink composition. There is no particular upper limit, but it is preferably 40% by mass or less, more preferably 35% by mass or less, even more preferably 30% by mass or less, even more preferably 25% by mass or less, and particularly preferably 20% by mass or less. When the content of polyhydric alcohols with a standard boiling point of 250°C or higher is within the above range, it tends to have an excellent balance of moisture retention and drying properties, and good intermittent printing stability and friction fastness.

[0052] 1.1.1.4 Water The colored ink composition used in the printing recording method according to this embodiment may contain water. The type of water used can be the same as that of the processing solution described later.

[0053] 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, even more preferably 60% by mass or more, particularly preferably 65% ​​by mass or more, and most particularly preferably 70% by mass or more, based on the total amount of the colored ink composition. When the water content is within the above range, the colored ink composition can be made relatively low viscosity. Furthermore, the upper limit of the water content is preferably 90% by mass or less, more preferably 85% by mass or less, and even more preferably 80% by mass or less, based on the total amount of the colored ink composition.

[0054] 1.1.1.5 Surfactants The colored ink composition used in the printing recording method according to this embodiment may contain a surfactant. Such a surfactant can be the same as the surfactant that can be contained in the processing solution described later, and the content can also be the same.

[0055] 1.1.1.6 pH adjusters The colored ink composition used in the printing recording method according to this embodiment may contain a pH adjuster. The pH adjuster is not particularly limited, but appropriate combinations of acids, bases, weak acids, and weak bases are possible. 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.; and as organic bases, triethanolamine (TEA), diethanolamine, monoethanolamine, trippropanol, etc. Examples of suitable solutions include mine, triisopropanolamine, diisopropanolamine, and trishydroxymethylaminomethane (THAM). As organic acids, adipic acid, 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, glycinamide, bicine, etc. Good's buffer, phosphate buffer, citrate buffer, Tris buffer, etc. may be used.

[0056] The colored ink composition may use one pH adjuster alone or two or more in combination. When using a pH adjuster, the total content relative to the total mass of the colored ink composition is, for example, 0.05% by mass or more and 3.0% by mass or less, and more preferably 0.1% by mass or more and 1.0% by mass or less.

[0057] 1.1.1.7 Other ingredients The colored ink composition used in the printing recording method according to this embodiment may appropriately contain various additives such as preservatives and antibacterial agents such as 1,2-dibenzoisothiazolin-3-one, metal sealants such as disodium dihydrogen dihydrogen salt of ethylenediaminetetraacetate, softeners, solubilizers, viscosity modifiers, ultraviolet absorbers, antioxidants, and corrosion inhibitors.

[0058] 1.1.1.8 Manufacturing and physical properties of colored ink compositions The colored ink composition used in the printing recording method according to this embodiment can be obtained, for example, by mixing the above-mentioned components in any order and removing impurities by filtration or other means as necessary. A preferred method for mixing the components is to sequentially add the materials to a container equipped with a stirring device such as a mechanical stirrer or a magnetic stirrer and then stir-mix them.

[0059] From the viewpoint of reliability when ejected by the inkjet method, the colored ink composition used in the printing recording method according to this embodiment preferably has a surface tension of 20 to 40 mN / m at 20°C, and more preferably 22 to 35 mN / m. Similarly, from the same viewpoint, the viscosity of the colored ink composition at 20°C is preferably 8 mPa·s or less, more preferably 7 mPa·s or less, even more preferably 6 mPa·s or less, and particularly preferably 5 mPa·s or less. In order to bring the surface tension and viscosity within the above ranges, for example, the type of organic solvent or surfactant mentioned above, and the amount of these added with water can be appropriately adjusted.

[0060] 1.2 Processing liquid application process The printing recording method according to this embodiment includes a processing liquid application step in which droplets of a processing liquid containing a cationic compound are applied to a fabric.

[0061] The amount of processing solution applied is 10-21 mg / inch per unit area of ​​the recording area of ​​the fabric. 2 Preferably, it is 12-20 mg / inch 2 It is more preferable that the concentration be 14-19 mg / inch 2It is even more preferable that the concentration be 15-18 mg / inch 2 It is particularly preferable that the amount of processing solution applied is within the above range. When the amount of processing solution applied is within the above range, it tends to be possible to achieve a good balance of friction fastness, bleed-through, and color development.

[0062] 1.2.1 Treatment solution The processing solution used in the textile printing recording method according to this embodiment contains a cationic compound. The components contained in the processing solution will be described below.

[0063] The processing solution is an auxiliary solution used in conjunction with the colored ink composition described above, which is used for coloring fabrics, and the uncolored ink composition (overcoat solution) described later, which is used for protecting the printing area. Furthermore, it is preferable that the processing solution can agglomerate or thicken the components of the colored ink composition and the uncolored ink composition (hereinafter, when the two are not particularly distinguished, they will simply be referred to as "ink composition" or "ink"), and it is more preferable that it contains components that agglomerate or thicken the components of the ink composition. The processing solution may contain the above-mentioned colorant, 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, relative to the total amount of the processing solution. It is preferable that the processing solution does not contain a colorant.

[0064] 1.2.1.1 Cationic Compounds The processing solution used in the textile printing recording method according to this embodiment contains a cationic compound. The cationic compound is not particularly limited as long as it reacts with anionic components such as pigments and first resin particles contained in the colored ink composition, and second resin particles contained in the uncolored ink composition, causing them to thicken and aggregate. However, from the viewpoint of further improving color development and wet friction fastness, it is preferable that the cationic compound contains at least one of a polyvalent metal salt or a cationic polymer.

[0065] <Polyvalent metal salts> Polyvalent metal salts have an excellent ability to thicken and aggregate the components of an ink composition when they come into contact with it, and tend to aggregate the ink near the surface of the fabric, resulting in good color development.

[0066] 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 the ink components. Furthermore, from the viewpoint of balancing aggregation and frictional fastness, magnesium ions are even more preferable.

[0067] The anions constituting polyvalent metal salts are inorganic ions or organic ions. In other words, a polyvalent metal salt as used herein 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.

[0068] The polyvalent metal salt is preferably a magnesium salt. For example, while calcium salts exhibit excellent cohesiveness, the cohesive reaction is difficult to control, and friction fastness and granular texture on fabrics may be inferior. In contrast, magnesium salts, compared to other salts such as calcium salts, exhibit a milder cohesive reaction with the ink, making the reaction easier to control. Therefore, they tend to provide good color development, as well as good friction fastness and granular texture. The counterion of the polyvalent metal can be either an inorganic acid ion or an organic acid ion.

[0069] Specific examples of polyvalent metal salts are not limited to heavy calcium carbonate and light calcium carbonate, but include 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, and silica. Examples include magnesium, copper nitrate, calcium acetate, magnesium acetate, and aluminum acetate. These polyvalent metal salts may be used individually or in combination of two or more. Among these, one or more selected from magnesium chloride, magnesium sulfate, magnesium carbonate, magnesium silicate, and magnesium acetate are preferred because they provide good color development, as well as good friction fastness and granular texture. These metal salts may contain hydration water in their raw material form.

[0070] When polyvalent metal salts are included, the lower limit of the polyvalent metal salt content is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, even more preferably 1.5% by mass or more, particularly preferably 2.0% by mass or more, and most particularly preferably 2.5% by mass or more, relative to the total mass of the treatment solution. The upper limit of the polyvalent metal salt content is preferably 10% by mass or less, more preferably 8% by mass or less, even more preferably 6% by mass or less, even more preferably 5% by mass or less, particularly preferably 4% by mass or less, and most particularly preferably 3.5% by mass or less, relative to the total mass of the treatment solution. When the polyvalent metal salt content is within the above range, it tends to be possible to achieve a good balance between color development and friction fastness.

[0071] <Cationic polymer> A cationic polymer is a polymer that possesses cationic properties. Therefore, when a cationic polymer comes into contact with an ink composition, it has the effect of agglomerating the components of the ink composition.

[0072] Furthermore, the cationic polymer preferably has crosslinkable groups, and more preferably has crosslinkable groups that react with hydroxyl groups. With such a cationic polymer, a crosslinking reaction occurs with the hydroxyl groups that may be present in the anionic resin particles contained in the ink composition, making the ink more viscous and aggregated, improving color development, and the crosslinking of the resin strengthens the ink layer and the overcoat layer, which tends to result in better friction fastness (especially wet friction fastness). In addition, when the fabric is cotton or the like, a crosslinking reaction occurs between the cationic polymer that reacts with hydroxyl groups and the hydroxyl groups of the cotton cellulose, which tends to improve the adhesion between the fabric and the ink layer, resulting in better friction fastness (especially wet friction fastness).

[0073] The cationic polymer is preferably one or more selected from, for example, polyamide epichlorohydrin resin, polyamine epichlorohydrin resin, melamine resin, blocked isocyanate resin, oxazoline, and carbodiimide. Among these, polyamide epichlorohydrin resin is more preferable as the cationic polymer. When these cationic polymers are used, the friction fastness and color development tend to be superior.

[0074] Polyamide epichlorohydrin resins, which are cationic polymers, are polymers obtained, for example, by an addition reaction between polyamide and epichlorohydrin, or by polymerizing monomers containing an amine, a carboxylic acid, and epichlorohydrin. Polyamide polyamine-epichlorohydrin copolymers are included in the category of polyamide epichlorohydrin resins. Commercially available cationic polymer polyamide epichlorohydrin resins include Kymene 557 (manufactured by SOLENIS), WS-4020, 4030, 4027, TS-4070 (manufactured by Seikoh PMC), AF-100, 251S, 255, 255LOX, and 2500 (manufactured by Arakawa Kogyo Kagaku Co., Ltd.).

[0075] Polyamine epichlorohydrin resins, which are cationic polymers, are polymers obtained, for example, by an addition reaction between a polyamine and epichlorohydrin, or by polymerizing monomers containing an amine such as dimethylamine and epichlorohydrin. Examples of commercially available polyamine epichlorohydrin resins include Unisense KHE107L (manufactured by Senka Co., Ltd.) and WS-4011 (manufactured by Seikoh PMC Co., Ltd.).

[0076] Examples of melamine resins that are cationic polymers include butylated melamine and fully etherified melamine. It is preferable that the melamine resin is water-soluble. Commercially available melamine resins that are cationic polymers include Myriogen P-20 (manufactured by Senka Co., Ltd.) and Sumirez® Resin 8%AC (manufactured by Taoka Chemical Industry Co., Ltd.).

[0077] Blocked isocyanate resin, which is a cationic polymer, is a resin having isocyanate groups that have been deactivated by a blocking agent. Preferably, the blocked isocyanate resin has two or more isocyanate groups, and at least one or more isocyanate groups are deactivated by the blocking agent. When the blocked isocyanate resin is heated to a temperature above the crosslinking reaction initiation temperature, it reacts with hydroxyl groups that may be present in the resin particles to form urethane bonds. This is because the blocking agent that deactivated the isocyanate groups of the blocked isocyanate resin dissociates when heated to a predetermined temperature, activating the isocyanate groups and allowing the crosslinking reaction to proceed. Preferably, the blocked isocyanate resin, which is a cationic polymer, is a TMP (trimethylolpropane) adduct or isocyanurate of HDI (hexamethylene diisocyanate), H6XDI (hydrogenated xylylene diisocyanate), IPDI (isophorone diisocyanate), or H12MDI (dicyclohexylmethane diisocyanate) that has been blocked. Commercially available blocked isocyanate resins include Fixer #220 (manufactured by Murayama Chemical Co., Ltd.), SU-268A (manufactured by Myojo Chemical Industry Co., Ltd.), and MF-B60B (manufactured by Asahi Kasei Corporation). These are cationic polymers. The blocking agent is not particularly limited, but examples include dimethylpyrazole, diethyl malonate, methyl ethyl ketoxime, ε-caprolactam, and 1,2,4-triazole. Among these, dimethylpyrazole and methyl ethyl ketoxime are preferred.

[0078] Examples of oxazolines, which are cationic polymers, include polymers obtained by homopolymerization of oxazoline group-containing ethylenically unsaturated monomers such as 2-isopropenyl-2-oxazoline and 2-vinyl-2-oxazoline, or by copolymerization with other unsaturated monomers. Commercially available oxazolines, which are cationic polymers, may also be used, such as "Epocross WS500" and "Epocross K201E" from Nippon Shokubai Co., Ltd.

[0079] Examples of cationic polymers, such as carbodiimides, include compounds containing two or more carbodiimide groups in one molecule, and polypropylcarbodiimide compounds are preferred. Commercially available carbodiimides, such as Nisshinbo Inc.'s "Carbodilite V-02," may be used as the cationic polymer.

[0080] The mass-average molecular weight of the cationic polymer is preferably 100,000 or less, more preferably 80,000 or less, even more preferably 60,000 or less, particularly preferably 40,000 or less, and most particularly preferably 20,000 or less. The lower limit of the mass-average molecular weight of the cationic polymer is not particularly limited, but is preferably 100 or more, more preferably 1,000 or more, and even more preferably 5,000 or more. When the mass-average molecular weight of the cationic polymer is 100,000 or less, the ejection performance when applying the processing solution by inkjet tends to be better. The mass-average molecular weight can be measured using gel permeation chromatography (GPC measuring device) with polyethylene glycol as the standard polymer.

[0081] If a cationic polymer is included, the amount of cationic polymer relative to the total volume of the treatment solution is... The content of the cationic polymer is preferably 1 to 10% by mass, more preferably 3 to 9% by mass, even more preferably 4 to 8% by mass, particularly preferably 5 to 7% by mass, and most particularly preferably 6 to 7% by mass. When the content of the cationic polymer is within the above range, it tends to be possible to achieve a better balance between print quality such as friction fastness, color development, and bleeding (show-through) and the ejection performance when applying the processing liquid by the inkjet method.

[0082] 1.2.1.2 Organic Solvents <Polyhydric alcohols> The processing solution used in the textile printing recording method according to this embodiment preferably contains a polyhydric alcohol as an organic solvent. A polyhydric alcohol is a substance having one or more hydroxyl groups in its molecule, preferably two or more hydroxyl groups, and more preferably three or more hydroxyl groups. Examples of polyhydric alcohols include alcohols, alkanediols, polyols, and alkylene glycol monoalkyl ethers. Among these, the polyhydric alcohol is preferably one or more selected from polyols and alkylene glycol monoalkyl ethers, and more preferably polyols. The state of the polyhydric alcohol at room temperature and pressure may be a liquid or a solid, but it is preferably a liquid.

[0083] Examples of alcohols include compounds in which one hydrogen atom of an alkane is replaced by a hydroxyl group. Alkanes may be linear or branched. Examples of alcohols include methanol, ethanol, n-propyl alcohol, iso-propyl alcohol, n-butanol, 2-butanol, tert-butanol, iso-butanol, n-pentanol, 2-pentanol, 3-pentanol, and tert-pentanol.

[0084] Alkanediols include, for example, compounds in which an alkane is substituted with two hydroxyl groups. Examples of alkanediols include ethylene glycol (also known as ethane-1,2-diol), propylene glycol (also known as propane-1,2-diol), 1,2-butanediol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, 1,3-propanediol, 1,3-butylene glycol (also known as 1,3-butanediol), 1,4-butanediol, 2,3-butanediol, 1,2-pentanediol, 1,5-pentanediol, and 2 Examples include 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.

[0085] 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.

[0086] 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 (standard boiling point 287°C) and tripropylene glycol.

[0087] 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... Examples include ricerin (standard boiling point 290°C), trimethylolethane, trimethylolpropane, 1,2,5-hexanetriol, 1,2,6-hexanetriol, pentaerythritol, and polyoxypropylenetriol.

[0088] Examples of alkylene glycol monoalkyl ethers 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 (BTG, standard boiling point 278°C), 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, and tripropylene glycol monobutyl ether.

[0089] The processing solution used in the textile printing recording method according to this embodiment more preferably contains a polyhydric alcohol with a standard boiling point of 250°C or higher. This results in good moisture retention of the processing solution, and tends to improve discharge stability even when a cationic polymer is included. Furthermore, from the viewpoint of suppressing the problem of VOCs (volatile organic compounds), it is preferable that the standard boiling point of the polyhydric alcohol be 250°C or higher.

[0090] Examples of polyhydric alcohols with a standard boiling point of 250°C or higher include polyols with a standard boiling point of 250°C or higher, such as triethylene glycol (standard boiling point 287°C), trimethylolpropane (standard boiling point 295°C), and glycerin (standard boiling point 290°C). Examples of alkylene glycol monoalkyl ethers with a standard boiling point of 250°C or higher include triethylene glycol monobutyl ether (BTG, standard boiling point 278°C), triethylene glycol monoethyl ether (standard boiling point 255°C), and tetraethylene glycol monobutyl ether (standard boiling point 290°C or higher). Among these, the polyhydric alcohol with a standard boiling point of 250°C or higher is preferably one or more selected from triethylene glycol, glycerin, and triethylene glycol monobutyl ether, and more preferably glycerin. When the above compounds are used, the moisture retention is better and the intermittent printing stability tends to be superior. Furthermore, from a similar viewpoint, polyhydric alcohols with a standard boiling point of 250°C or higher are preferably those with a standard boiling point of 260°C or higher, more preferably those with a standard boiling point of 270°C or higher, even more preferably those with a standard boiling point of 280°C or higher, and particularly preferably those with a standard boiling point of 285°C or higher.

[0091] The content of polyhydric alcohols with a standard boiling point of 250°C or higher is not particularly limited, but is preferably 1% by mass or more, more preferably 5% by mass or more, even more preferably 10% by mass or more, even more preferably 13% by mass or more, particularly preferably 15% by mass or more, and even more preferably 18% by mass or more, relative to the total amount of the processing solution. The upper limit is not particularly limited, but is preferably 40% by mass or less, more preferably 35% by mass or less, even more preferably 30% by mass or less, even more preferably 25% by mass or less, and particularly preferably 22% by mass or less. When the content of polyhydric alcohols with a standard boiling point of 250°C or higher is within the above range, there is a tendency to have an excellent balance between moisture retention and drying properties, and both intermittent printing stability and friction fastness can be improved.

[0092] <Other organic solvents> The processing solution used in the printing recording method according to this embodiment is an organic alcohol other than the polyhydric alcohol mentioned above. It may contain a solvent. Examples of such organic solvents include esters, alkylene glycol dialkyl ethers, cyclic esters, and nitrogen-containing solvents. Examples of nitrogen-containing solvents include cyclic amides and acyclic amides. Examples of acyclic amides include alkoxyalkyl amides.

[0093] 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.

[0094] Examples of alkylene glycol dialkyl ethers include 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.

[0095] 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.

[0096] 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, 3-n-propoxy-N,N-dimethylpropionamide, 3-n-propoxy-N,N-diethylpropionamide, 3-n-propoxy-N,N-methylethylpropionamide, and 3-iso-propoxy-N,N-dimethylpropionamide. Examples include mido, 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, etc.

[0097] Examples of cyclic amides include lactams, such as pyrrolidones including 2-pyrrolidone, 1-methyl-2-pyrrolidone, 1-ethyl-2-pyrrolidone, 1-propyl-2-pyrrolidone, and 1-butyl-2-pyrrolidone.

[0098] Organic solvents may be used individually or in combination of two or more types.

[0099] 1.2.1.3 Water The processing solution used in the textile printing recording method according to this embodiment may contain water. Examples of water include pure water such as ion-exchanged 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.

[0100] The water content is preferably 30% by mass or more, more preferably 40% by mass or more, even more preferably 45% by mass or more, even more preferably 50% by mass or more, particularly preferably 55% by mass or more, and most particularly preferably 60% by mass or more, relative to the total volume of the treatment liquid. By keeping the water content within the above range, the treatment liquid can be made relatively low viscosity. Furthermore, the upper limit of the water content is preferably 90% by mass or less, more preferably 85% by mass or less, and even more preferably 80% by mass or less, relative to the total volume of the treatment liquid.

[0101] 1.2.1.4 Surfactants The processing solution used in the textile printing recording method according to this embodiment may contain a surfactant. The surfactant is not particularly limited, but examples include acetylene glycol-based surfactants, fluorine-based surfactants, and silicone-based surfactants, and it is preferable to contain at least one of these, and among these, it is more preferable to contain an acetylene glycol-based surfactant.

[0102] Acetylene glycol-based surfactants are not particularly limited, but examples include 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, DF110D (all of the above are brand names, manufactured by Air Products Japan Co., Ltd.), O Examples include Rufin 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 Acetyleneol E00, E00P, E40, E100 (all brand names, manufactured by Kawaken Fine Chemical Co., Ltd.).

[0103] While not particularly limited, polysiloxane compounds are preferred as silicone-based surfactants. While not particularly limited, examples of polysiloxane compounds include polyether-modified organosiloxanes. Examples of commercially available polyether-modified organosiloxanes include BYK-306, BYK-307, BYK-333, BYK-341, BYK-345, BYK-346, BYK-348 (all trade names, manufactured by BICK CHEMIE Japan Co., Ltd.), KF-351A, KF-352A, KF-353, K Examples include F-354L, KF-355A, KF-615A, KF-945, KF-640, KF-642, KF-643, KF-6020, X-22-4515, KF-6011, KF-6012, KF-6015, and KF-6017 (all product names, manufactured by Shin-Etsu Chemical Co., Ltd.).

[0104] As the fluorine-based surfactant, it is preferable to use a fluorine-modified polymer, and a specific example is BYK-340 (trade name, manufactured by BYK-Chemie Japan Co., Ltd.).

[0105] If a surfactant is included, its content can be 0.1% by mass or more and 1.5% by mass or less relative to the total amount of the treatment solution, and is preferably 0.5% by mass or more and 1% by mass or less.

[0106] 1.2.1.5 Preservatives and antibacterial agents The processing solution used in the printing recording method according to this embodiment may contain preservatives and antibacterial agents. Examples of preservatives and antibacterial agents include sodium benzoate, sodium pentachlorophenol, sodium 2-pyridinethiol-1-oxide, sodium sorbate, sodium dehydroacetate, 1,2-dibenzoisothiazolin-3-one (Proxel CRL, Proxel BDN, Proxel GXL, Proxel XL-2, Proxel TN, Proxel LV from Lonza Japan), and 4-chloro-3-methylphenol (Preventol CMK from Bayer, etc.).

[0107] If preservatives and antibacterial agents are included, their content can be, for example, 0.05% by mass or more and 1.0% by mass or less, preferably 0.1% by mass or more and 0.5% by mass or less, relative to the total volume of the treatment solution.

[0108] 1.2.1.6 Other Ingredients The processing solution used in the textile printing recording method according to this embodiment may also appropriately contain various additives other than those mentioned above, such as alkaline compounds (pH adjusters) like triethanolamine, metal sealants like disodium dihydrogen dihydrogen salt of ethylenediaminetetraacetate, softeners, solubilizers, viscosity modifiers, ultraviolet absorbers, antioxidants, and corrosion inhibitors.

[0109] 1.2.1.7 Method for producing the treatment solution and its physical properties The processing solution used in the textile printing recording method according to this embodiment can be obtained, for example, by mixing the above-mentioned components in any order and removing impurities by filtration or other means as necessary. A preferred method for mixing the components is to sequentially add the materials to a container equipped with a stirring device such as a mechanical stirrer or a magnetic stirrer and then stir-mix them.

[0110] From the viewpoint of reliability when ejected by the inkjet method, the processing liquid used in the textile printing recording method according to this embodiment preferably has a surface tension of 20 to 40 mN / m at 20°C, and more preferably 22 to 35 mN / m. Similarly, from the same viewpoint, the viscosity of the processing liquid at 20°C is preferably 8 mPa·s or less, more preferably 7 mPa·s or less, even more preferably 6 mPa·s or less, and particularly preferably 5 mPa·s or less. In order to bring the surface tension and viscosity within the above ranges, for example, the type of organic solvent or surfactant mentioned above, and the amount of these added with water can be appropriately adjusted.

[0111] Note that, as the surface tension, the value measured by the Wilhelmy method can be adopted. For the measurement of the surface tension, for example, a surface tensiometer such as CBVP-7 manufactured by Kyowa Interface Science Co., Ltd. can be used. Further, for the viscosity, at 20 °C, for example, using a viscoelastic tester such as MCR-300 manufactured by Pysica, the Shear Rate is increased from 10 [s -1 to 1000 [s - 1 , and the viscosity at the time of Shear Rate 200 [s -1 can be measured by reading it.

[0112] 1.3 Non-colored ink adhesion process The printing and dyeing recording method according to the present embodiment includes a non-colored ink adhesion process of attaching droplets of a non-colored ink composition containing anionic second resin particles to a fabric.

[0113] The adhesion amount of the non-colored ink composition is preferably 10 to 21 mg / inch per unit area of the recording area of the fabric, more preferably 12 to 20 mg / inch 2 , still more preferably 14 to 19 mg / inch 2 , particularly preferably 15 to 18 mg / inch 2 . When the adhesion amount of the non-colored ink composition is within the above range, the rubbing fastness, bleeding, and color development tend to be well balanced. 2

[0114] 1.3.1 Non-colored ink composition The non-colored ink composition used in the printing and dyeing recording method according to the present embodiment contains anionic second resin particles. Hereinafter, each component contained in the non-colored ink composition will be described.

[0115] The non-colored ink composition (hereinafter also referred to as "overcoat liquid" or "coating liquid") differs from the colored ink composition and processing liquid described above used for coloring fabrics. It is applied to the printing area of ​​fabrics and other materials to protect the printing area and improve durability such as friction fastness and wash fastness. The non-colored ink composition may contain the above-mentioned colorants, but it is preferably 0.2% by mass or less, more preferably 0.1% by mass or less, even more preferably 0.05% by mass or less, with a lower limit of 0% by mass. It is preferable that the non-colored ink composition does not contain any colorants.

[0116] 1.3.1.1 Second resin particles The non-colored ink composition used in the printing recording method according to this embodiment contains anionic second resin particles. The second resin particles have the same configuration as the first resin particles contained in the colored ink composition described above. The second resin particles may contain the same resin as the first resin particles described above, or they may contain a different resin.

[0117] Similar to the first resin particles described above, the second resin particles preferably contain urethane resin or (meth)acrylic resin, more preferably contain urethane resin, and even more preferably contain urethane resin. When the second resin particles contain urethane resin, preferably the second resin particles are urethane resin, the urethane resin can react with cationic compounds such as cationic polymers that may be contained in the aforementioned processing liquid, which may further promote the aggregation and thickening effect, and the coating liquid layer may become tougher, resulting in better friction fastness, bleed-through (smudge-through), etc.

[0118] The content of the second resin particles is preferably 2% by mass or more, more preferably 3 to 30% by mass, even more preferably 4 to 20% by mass, particularly preferably 5 to 15% by mass, and most preferably 7 to 13% by mass, relative to the total amount of the non-colored ink composition. When the content of the second resin particles is within the above range, friction fastness and bleed-through tend to be improved.

[0119] 1.3.1.2 Organic Solvents The non-colored ink composition used in the printing recording method according to this embodiment may contain an organic solvent. Preferably, the organic solvent contains a polyhydric alcohol with a standard boiling point of 250°C. It is more preferable to include the above-mentioned polyhydric alcohols. The type of organic solvent used can be the same as that of the treatment solution described above.

[0120] The content of polyhydric alcohols with a standard boiling point of 250°C or higher in the non-colored ink composition is preferably 1% by mass or more, more preferably 5% by mass or more, even more preferably 10% by mass or more, even more preferably 15% by mass or more, particularly preferably 20% by mass or more, and even more preferably 22% by mass or more, relative to the total amount of the non-colored ink composition. There is no particular upper limit, but it is preferably 50% by mass or less, more preferably 40% by mass or less, even more preferably 30% by mass or less, even more preferably 28% by mass or less, and particularly preferably 26% by mass or less. When the content of polyhydric alcohols with a standard boiling point of 250°C or higher is within the above range, it tends to have an excellent balance of moisture retention and drying properties, and good intermittent printing stability and friction fastness.

[0121] 1.3.1.3 Water The non-colored ink composition used in the printing recording method according to this embodiment may contain water. The type of water used can be the same as that of the processing solution described above.

[0122] The water content is preferably 20% by mass or more, more preferably 30% by mass or more, even more preferably 40% by mass or more, even more preferably 50% by mass or more, particularly preferably 55% by mass or more, and most particularly preferably 60% by mass or more, based on the total amount of the non-colored ink composition. When the water content is within the above range, the non-colored ink composition can be made relatively low viscosity. Furthermore, the upper limit of the water content is preferably 90% by mass or less, more preferably 80% by mass or less, and even more preferably 70% by mass or less, based on the total amount of the non-colored ink composition.

[0123] 1.3.1.4 Surfactants The non-colored ink composition used in the printing recording method according to this embodiment may contain a surfactant. Such a surfactant can be the same as the surfactant that can be contained in the processing solution described above, and the content can also be the same.

[0124] 1.3.1.5 pH adjusters The non-colored ink composition used in the printing recording method according to this embodiment may contain a pH adjuster. Such a surfactant can be the same as the pH adjuster that can be contained in the aforementioned colored ink composition, and the content can also be the same.

[0125] 1.3.1.6 Other ingredients The non-colored ink composition used in the printing recording method according to this embodiment may appropriately contain various additives such as preservatives and antibacterial agents such as 1,2-dibenzoisothiazolin-3-one, metal sealants such as disodium dihydrogen dihydrogen salt of ethylenediaminetetraacetate, softeners, solubilizers, viscosity modifiers, ultraviolet absorbers, antioxidants, and corrosion inhibitors.

[0126] 1.3.1.7 Manufacturing and physical properties of non-colored ink compositions The non-colored ink composition used in the printing recording method according to this embodiment can be manufactured in the same manner as the colored ink composition described above, and its physical properties such as surface tension and viscosity at 20°C can also be the same.

[0127] 1.4 Other processes The textile printing recording method according to this embodiment may include a step of heating the fabric after the processing liquid application step, the colored ink application step, and the non-colored ink application step described above. The heating method is not particularly limited, but for example, a heat press method, an atmospheric pressure steam method, a high-pressure steam method, Examples include the thermofix method. The heat source for heating is not particularly limited, but for example, an infrared lamp can be used. The heating temperature is preferably the temperature at which the first resin particles and the second resin particles are fused together and the medium such as moisture volatilizes. For example, it is preferably 100°C to 200°C, more preferably 170°C or lower, and even more preferably 160°C or lower. Here, the heating temperature in the heating process refers to the surface temperature of the image, etc., formed on the fabric. The heating time is not particularly limited, but for example, it is 30 seconds to 20 minutes.

[0128] The process may include a step of washing and drying the printed fabric after the heating step. During 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.

[0129] 1.5 Adhesion Patterns The above-described processing liquid application step, colored ink application step, and non-colored ink application step in the textile printing recording method according to this embodiment are performed by an inkjet method, and the inkjet method involves performing multiple main scans in which the inkjet head is moved perpendicular to the fabric transport direction to perform recording.

[0130] Inkjet recording is a recording method in which droplets of ink or other liquid are ejected from the nozzles of an inkjet head of an inkjet recording device and applied to a recording medium. In this context, the main scan, which involves moving the inkjet head perpendicular to the fabric transport direction, is, for example, in the recording device shown in Figure 1, a scan in which the carriage 43 having the inkjet head 42 moves back and forth perpendicular to the fabric transport direction (+X axis direction) (Y axis direction) while recording is performed.

[0131] The number of main scans is not particularly limited, but for example, it is 2 or more, preferably 4 or more, and more preferably 8 or more. Similarly, there is no particular upper limit to the number of main scans, but for example, it is preferably 32 or less, and more preferably 16 or less.

[0132] 1.5.1 Simultaneous deposition process The textile printing recording method according to this embodiment includes a simultaneous adhesion step in which the above-mentioned processing liquid and the colored ink composition are adhered to the same scanning area of ​​the fabric by the same main scan. The simultaneous adhesion step allows for the formation of layers containing the processing liquid and the colored ink composition by the same main scan, making them easier to mix and react with. This promotes thickening and aggregation of the ink, allowing the ink components to remain near the surface of the fabric, thus contributing to reduced bleed-through and improved color development.

[0133] In the simultaneous adhesion process, it is preferable to perform the same main scan multiple times on the same scanning area. In this configuration, after one main scan adheres a layer containing the colored ink composition and processing liquid to a certain area on the fabric, another main scan can then adhere another layer containing the colored ink composition and processing liquid on top of it. As a result, the processing liquid and the colored ink composition are layered alternately (like a mille-feuille), making it easier for the components of both to mix and for the reaction to proceed. Therefore, the thickening and aggregation of the ink is further promoted, the ink components are more likely to remain near the surface of the fabric, thus contributing to a reduction in bleed-through and tending to result in better color development.

[0134] Furthermore, when the same main scan is performed multiple times on the same scanning area, the main scan that applies the colored ink composition and processing solution will pass over the same area of ​​the fabric multiple times. The more times the scan is performed, the more the colored ink composition and processing solution can be applied to the desired area in multiple passes, which tends to improve the image quality of the resulting recording.

[0135] Furthermore, when recording an arbitrary area, the number of times the inkjet head passes over that area is also called a "pass." For example, if the main scan to deposit the colored ink composition and processing liquid is performed four times over the same area, the number of passes is called 4 passes. For example, in Figure 2, if the length of one sub-scan in the sub-scanning direction (+X axis direction) is one-quarter the length of the nozzle row in the sub-scanning direction (+X axis direction), then four scans will be performed on a rectangular scanning area that is the length of one sub-scan in the sub-scanning direction (+X axis direction) and extends in the main scanning direction (Y axis direction). The number of scans in this view is called the number of scans or the number of passes. The number of scans in the simultaneous deposition process is 1 or more, preferably 2 or more, more preferably 3 or more, and even more preferably 4 or more. There is no particular upper limit to the number of scans in the simultaneous deposition process, but for example, 12 or less is preferred, and 8 or less is more preferred. According to the printing recording method of this embodiment, even if the number of scans in the simultaneous adhesion process is within the above range, good color development and friction fastness can be obtained, and good reduction of bleeding (show-through) can be obtained.

[0136] Furthermore, in the simultaneous adhesion process, a layer containing the processing liquid may be formed by a main scan different from the main scan that forms the layer containing the colored ink composition and processing liquid, and the layer containing the colored ink composition and processing liquid and the layer containing the processing liquid may be laminated together. By forming a layer containing the processing liquid in this way, the color development and friction fastness may be further improved. The formation of the layer containing the processing liquid may be performed before or after the formation of the layer containing the colored ink composition and processing liquid, but it is preferable to perform it beforehand.

[0137] 1.5.2 Post deposition process The textile printing recording method according to this embodiment includes a post-adhesion step in which the above-mentioned non-colored ink composition is adhered to the same scanning area of ​​the fabric by a main scan different from that of the simultaneous adhesion step. With the post-adhesion step, a layer containing the processing liquid and the colored ink composition is formed first, and then a layer containing the non-colored ink composition (coating liquid) is formed and laminated, so that the processing liquid and the coating liquid mix and react more easily. As a result, the viscosity and aggregation of the coating liquid are further promoted, and the coating liquid layer can be more easily formed on the outermost layer. In addition, the resin particles and cationic compounds react more, making the layer tougher. Therefore, it is presumed that this contributes to the reduction of bleed-through and also improves friction fastness. If the coating liquid is not adhered in the post-adhesion step, but is adhered simultaneously with the processing liquid and the colored ink composition, the amount of moisture on the fabric becomes excessive, making bleeding and bleed-through more likely. In addition, the reaction between the coating liquid and the processing liquid tends to be insufficient, and friction fastness tends to be poor.

[0138] In the post-adhesion step, the same main scan to adhere the non-colored ink composition to the same scanning area of ​​the fabric may be performed multiple times. The number of scans in the post-adhesion step is 1 or more, preferably 2 or more, more preferably 3 or more, and even more preferably 4 or more. There is no particular upper limit to the number of scans in the post-adhesion step, but for example, 12 or less is preferred, and 8 or less is more preferred. According to the printing recording method of this embodiment, even if the number of scans in the post-adhesion step is within the above range, good friction fastness and good reduction of bleeding (show-through) tend to be obtained.

[0139] 1.5.3 Process interval 1.5.3.1 Colored ink application process and non-colored ink application process In the printing recording method according to this embodiment, it is preferable that the time difference between the colored ink application step and the non-colored ink application step is 10 seconds or less. More preferably, the time difference between the colored ink application step and the non-colored ink application step is 9 seconds or less, even more preferably 8 seconds or less, even more preferably 7 seconds or less, and particularly preferably 6 seconds or less. It is even more preferable that the time difference be within 5 seconds. When such a time difference is within the above range, the cationic compound contained in the processing solution tends to react well not only with the colored ink composition but also with the uncolored ink composition (coating solution). In other words, the coating solution can be attached before the cationic compound contained in the processing solution is completely consumed by the colored ink composition. This further promotes the thickening and aggregation of the coating solution, making it easier to form a coating solution layer on the outermost layer. In addition, the layer can be made even tougher by further reaction between the resin particles and the cationic compound. Therefore, it contributes further to reducing bleed-through and also improves friction fastness.

[0140] In the present invention, "time difference between the colored ink application process and the non-colored ink application process" refers to the time difference from the last ejection of the colored ink composition to the first ejection of the non-colored ink composition. In particular, it refers to the time difference from the last ejection of the colored ink composition to the first ejection of the non-colored ink composition for the same scanning area of ​​the fabric.

[0141] While there is no particular lower limit to the time difference between the colored ink application process and the uncolored ink application process, it is preferably 1.0 second or more, more preferably 3.0 seconds or more, and even more preferably 4.5 seconds or more. When the time difference is within the above range, the reaction between the processing solution and the coating solution tends to proceed sufficiently, resulting in good friction fastness and good reduction of bleeding (show-through).

[0142] 1.5.3.2 Colored ink application process and processing solution application process In the textile printing recording method according to this embodiment, it is preferable that the time difference between the colored ink application step and the processing liquid application step is within 5 seconds. When the colored ink application step and the processing liquid application step are performed with such a time difference, a wet-on-wet method can be used in which the second droplet, which is applied later, is applied before the first droplet, which is applied first, dries. Note that if the first droplet is a colored ink composition, the second droplet is the processing liquid, and if the first droplet is the processing liquid, the second droplet is a colored ink composition. While the wet-on-wet method has advantages in terms of miniaturization and high-speed operation of the device, it has problems such as poor bleeding, color development, and friction fastness. However, according to the textile printing recording method according to this embodiment, even with such a wet-on-wet method, excellent color development and friction fastness can be achieved, and bleeding can be suppressed. In addition, in the textile printing recording method according to this embodiment, when the time difference is within 5 seconds, the reaction between the colored ink composition and the processing liquid proceeds more easily, and there is a tendency for better color development and friction fastness.

[0143] In the present invention, "time difference between the colored ink application process and the processing liquid application process" refers to the time difference between the last time the processing liquid is dispensed and the first time the colored ink composition is dispensed. In particular, it refers to the time difference between the last time the processing liquid is dispensed and the first time the colored ink composition is dispensed for the same scanning area of ​​the fabric.

[0144] The time difference between the colored ink application process and the processing solution application process is preferably 1 second or less, more preferably 0.7 seconds or less, and even more preferably 0.4 seconds or less in the simultaneous application process. On the other hand, the time difference between the colored ink application process and the processing solution application process is preferably 0.1 seconds or less, and more preferably 0.05 seconds or less. The lower limit is not particularly limited, but is preferably 0.01 seconds or more, and more preferably 0.1 seconds or more. The time difference between the colored ink application process and the processing solution application process is particularly preferably 0.3 seconds. With such a time difference, the reaction between the colored ink composition and the processing solution proceeds more easily, and tends to be superior in color development, friction fastness, and reduction of bleed-through.

[0145] 1.5.4 Process execution location The printing recording method according to this embodiment comprises the above-described step of applying colored ink and a step of applying processing liquid. Preferably, the non-colored ink application process is performed on the same support. Performing each process on the same support simplifies the printing recording method according to this embodiment. However, there is a problem that the ink composition and processing liquid that bleed through to the back of the fabric undergo an agglomeration reaction on the support, contaminating the support. In particular, in methods of recording ink, processing liquid, and coating liquid using a wet-on-wet method, bleed-through is common and contamination of the support is significant. In contrast, the printing recording method according to this embodiment can effectively reduce bleed-through, thus effectively reducing contamination on the support.

[0146] The support material is not particularly limited as long as it can support and transport the fabric and perform each process, but the support material is preferably a belt having an adhesive layer. A belt with an adhesive layer can fix the fabric and transport it stably, thereby improving the accuracy of fabric transport. However, such an adhesive layer not only easily traps aggregates of the ink composition and processing liquid, but the processing liquid that seeps through to the back reacts with the adhesive layer, making cleaning difficult. In contrast, the printing recording method according to this embodiment can effectively reduce seepage, making cleaning easy, and a belt with an adhesive layer can be suitably used.

[0147] For the adhesive layer, for example, glues containing polyvinyl alcohol (PVA), or hot-melt adhesives mainly composed of thermoplastic elastomer SIS (styrene-isoprene-styrene) can be used. Commercially available adhesives can also be used, such as the "Polyx Resin," "Newdyne," and "Aquadyne" series from Yokohama Polymer Research Institute Co., Ltd., the "MC Polymer Series" from Murayama Chemical Research Institute Co., Ltd., "Unikenzol RV-30 (for screen printing)" from Union Chemical Industry Co., Ltd., "Plaster EH" from Shin Nakamura Chemical Industry Co., Ltd., and "ATRASOL" from ATR CHEMICALS. Examples include "GP1 (ATR code: ATR1717)".

[0148] As a support, a belt is preferably an endless belt formed by connecting both ends of a strip-shaped belt, from the viewpoint of ease of cleaning and other factors.

[0149] 1.6 Inkjet Textile Printing Equipment An example of an inkjet printing apparatus equipped with an inkjet head, applicable to the printing recording method according to this embodiment, will be described with reference to Figure 1.

[0150] In Figure 1, the scale of each layer and component has been altered from the actual scale in order to make them recognizable. Also, for the sake of explanation, Figure 1 illustrates the X, Y, and Z axes as three mutually orthogonal axes, with the tip of the arrow indicating the axis direction being the "+ side" and the base being the "- side". The direction parallel to the X axis is called the "X-axis direction", the direction parallel to the Y axis is called the "Y-axis direction", and the direction parallel to the Z axis is called the "Z-axis direction".

[0151] 1.6.1 Overall schematic configuration Figure 1 is a schematic diagram showing the overall configuration of the recording device 100. First, the overall configuration of the recording device 100 will be explained with reference to Figure 1.

[0152] As shown in Figure 1, the recording device 100 includes a media transport unit 20, a media contact unit 60, a belt support unit 91, a printing unit 40, a heating unit 27, a washing unit 50, and the like. In the recording device 100, at least one of the media contact unit 60 and the belt support unit 91 corresponds to a heating unit that heats the endless belt 23. It also has a control unit 1 that controls each of these units. Each part of the recording device 100 is attached to a frame unit 90.

[0153] Furthermore, if a heating section is provided to heat the endless belt, it only needs to be located upstream of the printing section 40 in the transport direction, and should be located in a different place from the media contact section 60 and the belt support section 91. Alternatively, the heating section may be located upstream of the media contact section 60 in the conveying direction. With this configuration, the heating section can also dry the wet endless belt 23 during cleaning. Furthermore, the heating section may heat the endless belt without contact.

[0154] The media transport unit 20 transports the fabric 95 in the transport direction. The media transport unit 20 includes a media supply unit 10, transport rollers 21 and 22, an endless belt 23, a belt rotating roller 24, a belt drive roller 25 as a drive roller, transport rollers 26 and 28, and a media recovery unit 30.

[0155] 1.6.2 Media Transport Section First, the transport path of the fabric 95 from the media supply unit 10 to the media recovery unit 30 will be described. In Figure 1, the direction along the direction in which gravity acts is defined as the Z-axis direction, the direction in which the fabric 95 is transported in the printing unit 40 is defined as the +X-axis direction, and the width direction of the fabric 95 that intersects both the Z-axis direction and the X-axis direction is defined as the Y-axis direction. The positional relationship along the transport direction of the fabric 95 or the movement direction of the endless belt 23 is also referred to as the "upstream side" and the "downstream side."

[0156] The media supply unit 10 supplies the fabric 95 on which the image is formed to the printing unit 40. The media supply unit 10 has a supply shaft 11 and a bearing 12. The supply shaft 11 is formed in a cylindrical or columnar shape and is rotatable in the circumferential direction. The strip-shaped fabric 95 is wound in a roll on the supply shaft 11. The supply shaft 11 is detachably attached to the bearing 12. This allows the fabric 95, which is pre-wound on the supply shaft 11, to be attached to the bearing 12 together with the supply shaft 11.

[0157] The bearing section 12 rotatably supports both axial ends of the supply shaft section 11. The medium supply section 10 has a rotation drive section (not shown) that rotates the supply shaft section 11. The rotation drive section rotates the supply shaft section 11 in the direction in which the fabric 95 is fed out. The operation of the rotation drive section is controlled by the control section 1. The conveyor rollers 21 and 22 relay the fabric 95 from the medium supply section 10 to the endless belt 23.

[0158] The endless belt 23 is held between at least two rollers that rotate the endless belt 23, and as the endless belt 23 rotates, it supports the fabric 95 and conveys it in the conveying direction (+X axis direction). Specifically, the endless belt 23 is a seamless belt formed by connecting both ends of a strip-shaped belt without any joints, and is stretched between two rollers, the belt rotating roller 24 and the belt driving roller 25.

[0159] The endless belt 23 is held under a predetermined tension so that the portion between the belt rotating roller 24 and the belt driving roller 25 is horizontal. An adhesive 29 for adhering the fabric 95 is applied to the surface (support surface) 23a of the endless belt 23. In other words, the endless belt 23 has an adhesive layer consisting of the adhesive 29. The fabric 95 is attached to the endless belt 23 via the adhesive 29. The endless belt 23 is supplied from the conveying roller 22 and supports (holds) the fabric 95, which is in close contact with the adhesive 29, at the medium contact section 60, which will be described later.

[0160] Preferably, the adhesive 29 increases in tackiness when heated. By using an adhesive 29 that increases in tackiness when heated, the fabric 95 can be adhered well to the adhesive layer. An example of such an adhesive 29 is a hot-melt adhesive mainly composed of the thermoplastic elastomer SIS (styrene-isoprene-styrene) mentioned above.

[0161] The belt rotating roller 24 and the belt driving roller 25 support the inner circumferential surface 23b of the endless belt 23. Between the belt rotating roller 24 and the belt driving roller 25 is the endless belt A contact portion 69, a belt support portion 91, and a platen 46 are provided to support the belt 23. The contact portion 69 is located in the region facing the pressing portion 61 (described later) via the endless belt 23, the platen 46 is located in the region facing the printing portion 40 via the endless belt 23, and the belt support portion 91 is located between the contact portion 69 and the platen 46. The contact portion 69, the belt support portion 91, and the platen 46 support the endless belt 23, thereby suppressing vibrations of the endless belt 23 that occur when the endless belt 23 is moved.

[0162] The belt-driven roller 25 is a drive unit that conveys the fabric 95 in the conveying direction by rotating the endless belt 23, and has a motor (not shown) that rotates the belt-driven roller 25. The belt-driven roller 25 is located downstream of the printing unit 40 in the conveying direction of the fabric 95, and the belt-rotating roller 24 is located upstream of the printing unit 40. When the belt-driven roller 25 is rotated, the endless belt 23 rotates in conjunction with the rotation of the belt-driven roller 25, and the belt-rotating roller 24 rotates due to the rotation of the endless belt 23. As the endless belt 23 rotates, the fabric 95 supported by the endless belt 23 is conveyed in the conveying direction (+X axis direction), and an image is formed on the fabric 95 in the printing unit 40, which will be described later.

[0163] In the example shown in Figure 1, the fabric 95 is supported on the side of the endless belt 23's surface 23a facing the printing unit 40 (+Z-axis side), and the fabric 95 is transported together with the endless belt 23 from the belt rotating roller 24 side to the belt driving roller 25 side. On the side of the endless belt 23's surface 23a facing the washing unit 50 (-Z-axis side), only the endless belt 23 moves from the belt driving roller 25 side to the belt rotating roller 24 side.

[0164] The conveyor roller 26 peels the fabric 95 with the image formed on it from the adhesive 29 of the endless belt 23. The conveyor rollers 26 and 28 relay the fabric 95 from the endless belt 23 to the media recovery unit 30.

[0165] The media recovery unit 30 recovers the fabric 95 that has been transported by the media transport unit 20. The media recovery unit 30 has a winding shaft 31 and a bearing unit 32. The winding shaft 31 is formed in a cylindrical or columnar shape and is rotatable in the circumferential direction. The strip-shaped fabric 95 is wound onto the winding shaft 31 in a roll shape. The winding shaft 31 is detachably attached to the bearing unit 32. As a result, the fabric 95 wound onto the winding shaft 31 can be removed together with the winding shaft 31.

[0166] The bearing section 32 rotatably supports both ends of the winding shaft section 31 in the axial direction. The media recovery section 30 has a rotation drive section (not shown) that rotates the winding shaft section 31. The rotation drive section rotates the winding shaft section 31 in the direction in which the fabric 95 is wound. The operation of the rotation drive section is controlled by the control section 1.

[0167] Next, we will describe the heating section, printing section 40, heating unit 27, and washing unit 50, which are located along the media transport section 20.

[0168] 1.6.3 Heating section It is preferable that a heater for heating the endless belt 23 is provided in at least one of the contact portion 69 and the belt support portion 91. The heater constitutes the heating portion. When a heater is provided in the contact portion 69, the pressing portion 61 can apply pressing force and heat to the endless belt 23, which is preferable in that it can improve the adhesion of the fabric 95 to the endless belt 23. Therefore, when a heater is provided in either the contact portion 69 or the belt support portion 91, it is more preferable to provide it in the contact portion 69.

[0169] The heating element softens the adhesive layer by heating it, thereby making it adhesive, and the fabric 95 and the adhesive layer This improves adhesion. As a result, movement of the fabric 95 on the endless belt 23 is suppressed, and good conveying accuracy can be obtained.

[0170] A heater is provided on at least one of the contact portion 69 and the belt support portion 91, and when the endless belt 23 is heated, the temperature of the surface 23a of the endless belt 23 is preferably 80 degrees Celsius or lower, more preferably 70 degrees Celsius or lower, and even more preferably 60 degrees Celsius or lower. When the temperature of the surface 23a of the endless belt 23 is within the above range, the reactivity of the resin particles contained in the ink composition is suppressed, and the belt may be easier to clean. The lower limit of the temperature of the surface 23a of the endless belt 23 is as long as it allows the adhesive layer to exhibit its adhesive properties, preferably 30 degrees Celsius or higher, more preferably 35 degrees Celsius or higher, and even more preferably 40 degrees Celsius or higher. The temperature of the surface 23a of the endless belt 23 can be measured by, for example, a radiant thermometer, a contact thermometer, etc., and it is more preferable to measure it by a radiant thermometer.

[0171] If a heater is provided on at least one of the contact portion 69 and the belt support portion 91, a temperature detection unit (not shown) for detecting the surface temperature of the endless belt 23 may be provided. For example, a thermocouple can be used as the temperature detection unit. As a result, the control unit 1 can raise the endless belt 23 to a predetermined temperature by controlling the heater based on the temperature detected by the temperature detection unit. Note that a non-contact thermometer using infrared radiation may be used as the temperature detection unit.

[0172] 1.6.4 Printing Department The printing unit 40 is positioned above (towards the +Z axis) the position of the endless belt 23 and prints on the fabric 95 placed on the surface 23a of the endless belt 23. The printing unit 40 includes an inkjet head 42, a carriage 43 on which the inkjet head 42 is mounted, and a carriage movement unit 45 that moves the carriage 43 in the width direction (Y axis direction) of the fabric 95 intersecting the transport direction.

[0173] The inkjet head 42 is a means for spraying and adhering an ink composition and processing liquid supplied from a liquid cartridge (not shown) onto a fabric 95 from multiple nozzles under the control of the control unit 1. The inkjet head 42 has multiple nozzles on the surface facing the fabric 95 to which the ink composition and processing liquid are to be applied, for ejecting the ink composition and processing liquid and adhering it to the fabric 95. These multiple nozzles are arranged in a row to form a nozzle row, and the nozzle row is individually arranged corresponding to the ink composition and processing liquid. The ink composition and processing liquid are supplied to the inkjet head 42 from each liquid cartridge and ejected as droplets from the nozzles by actuators (not shown) inside the inkjet head 42. The ejected droplets of ink composition and processing liquid land on the fabric 95, and the adhesion process to the fabric 95 is performed, forming images, text, patterns, colors, etc., on the printing area of ​​the fabric 95 using ink.

[0174] Here, the inkjet head 42 uses a piezoelectric element as the actuator, which is the driving means, but the system is not limited to this method. For example, an electromechanical conversion element that displaces a diaphragm as an actuator by electrostatic attraction, or an electrothermal conversion element that ejects ink composition or the like as droplets by generating bubbles through heating may be used.

[0175] The inkjet head 42 can be provided in multiple types on the carriage 43, for example, as an inkjet head 42a having a head nozzle group for ejecting processing liquid, an inkjet head 42b having a head nozzle group for ejecting a colored ink composition, and an inkjet head 42c having a head nozzle group for ejecting a non-colored ink composition. The ejecting head nozzle group refers to the nozzle group used for recording in the recording method. When performing a main scan (Y-axis direction), if there is an image to be recorded in the area of ​​the fabric opposite the nozzle group, it is a group of nozzles capable of ejecting ink, etc., and is a nozzle group continuous in the transport direction (+X-axis direction). Therefore, although nozzle groups exist, nozzle groups not used for recording in the recording method are not included in the nozzle groups that discharge.

[0176] In the textile printing recording method according to this embodiment, it is preferable that the head nozzle group that discharges the processing liquid is located at the same position as the head nozzle group that discharges the colored ink composition with respect to the fabric transport direction, or has a portion that overlaps with the head nozzle group that discharges the colored ink composition with respect to the transport direction, and that the head nozzle group that discharges the non-colored ink composition is located downstream of the head nozzle group that discharges the colored ink composition with respect to the fabric transport direction. Furthermore, from a similar viewpoint, it is preferable that the inkjet head that ejects the processing liquid is located at the same position as the inkjet head that ejects the colored ink composition with respect to the fabric transport direction, or has a portion that overlaps with the inkjet head that ejects the colored ink composition with respect to the transport direction, and that the inkjet head that ejects the non-colored ink composition is located downstream of the inkjet head that ejects the colored ink composition with respect to the fabric transport direction. Furthermore, from a similar viewpoint, it is preferable that the head nozzle group that discharges the processing liquid used for recording has a portion that overlaps with the head nozzle group that discharges the colored ink composition used for recording, and that the head nozzle group that discharges the uncolored ink composition used for recording is located downstream of the head nozzle group that discharges the colored ink composition used for recording with respect to the fabric transport direction. With these configurations, the aforementioned simultaneous adhesion process and post-adhesion process can be carried out effectively, and therefore the color development, friction fastness, and reduction of bleed-through tend to be superior.

[0177] For example, in the example head arrangement shown in Figure 2, the head nozzle group that ejects the processing liquid in inkjet head 42a is arranged side by side at the same position as the head nozzle group that ejects the colored ink composition in inkjet head 42b with respect to the transport direction (+X axis direction) of the fabric 95, and the head nozzle group that ejects the non-colored ink composition in inkjet head 42c is arranged downstream in the transport direction (+X axis direction) of the fabric 95 compared to the head nozzle group that ejects the colored ink composition in inkjet head 42b. With such a head arrangement configuration, the aforementioned simultaneous adhesion process and post-adhesion process can be performed suitably, and therefore tends to be superior in color development, friction fastness, and reduction of bleed-through. Note that the nozzle groups shown in Figure 2 are the head nozzle groups ejected by each inkjet head. Also, inkjet heads 42a and 42b may be arranged in reverse.

[0178] For example, in the example head arrangement shown in Figure 3, the head nozzle group that ejects the processing liquid in inkjet head 42a is not in the same position as the head nozzle group that ejects the colored ink composition in inkjet head 42b with respect to the transport direction (+X axis direction) of the fabric 95, but they overlap. The head nozzle group that ejects the non-colored ink composition in inkjet head 42c is positioned downstream in the transport direction (+X axis direction) of the fabric 95 compared to the head nozzle group that ejects the colored ink composition in inkjet head 42b. With such a head arrangement configuration, the aforementioned simultaneous adhesion process and post-adhesion process can be performed effectively, and therefore the color development, friction fastness, and reduction of bleed-through tend to be superior. Note that the nozzle groups shown in Figure 3 are the head nozzle groups ejected by each inkjet head. Also, inkjet heads 42a and 42b may be arranged in reverse.

[0179] The "overlapping portion" refers to the portion of the head nozzle group that ejects the colored ink composition used for recording and the head nozzle group that ejects the processing liquid used for recording that is located in the same position in the transport direction (+X axis direction) of the fabric 95. This allows a layer containing the processing liquid and the colored ink composition to be formed in the same main scan.

[0180] The carriage movement section 45 is located above the endless belt 23 (on the +Z axis side). The carriage movement section 45 has a pair of guide rails 45a and 45b that extend along the Y axis. The inkjet head 42 is supported by the guide rails 45a and 45b so as to be able to reciprocate along the Y axis together with the carriage 43.

[0181] The carriage movement unit 45 is equipped with a movement mechanism and a power source (not shown). The movement mechanism can include, for example, a mechanism combining a ball screw and a ball nut, or a linear guide mechanism. Furthermore, the carriage movement unit 45 has a motor (not shown) as a power source for moving the carriage 43 along the guide rails 45a and 45b. Various motors can be used as the motor, such as a stepping motor, servo motor, or linear motor. When the motor is driven by the control unit 1, the inkjet head 42 moves along the Y-axis direction together with the carriage 43.

[0182] 1.6.5 Heating Unit A heating unit 27 may be provided between the transport rollers 26 and 28. The heating unit 27 heats the ink composition or processing liquid discharged onto the fabric 95. This tends to allow the reaction of the resin particles contained in the ink composition to proceed sufficiently. Sufficient reaction of the resin particles may result in the formation of an image with good friction fastness. The heating unit 27 may also be used for the purpose of drying the fabric 95. The heating unit 27 may include, for example, an IR heater, and by driving the IR heater, the ink composition or processing liquid discharged onto the fabric 95 can be reacted in a short time. This allows the strip-shaped fabric 95 with the image formed on it to be wound onto the winding shaft 31.

[0183] 1.6.6 Washing Unit The cleaning unit 50 is positioned between the belt rotating roller 24 and the belt driving roller 25 in the X-axis direction. The cleaning unit 50 has a cleaning section 51, a pressing section 52, and a moving section 53. The moving section 53 moves the cleaning unit 50 integrally along the floor surface 99 and fixes it in a predetermined position.

[0184] The pressing section 52 is a lifting device composed of, for example, an air cylinder 56 and a ball bush 57, and the cleaning section 51 provided at its upper part comes into contact with the surface 23a of the endless belt 23. The cleaning section 51 is placed between the belt rotating roller 24 and the belt driving roller 25 with a predetermined tension acting on it, and cleans the surface (support surface) 23a of the endless belt 23 as it moves from the belt driving roller 25 toward the belt rotating roller 24 from below (in the -Z axis direction).

[0185] The cleaning unit 51 includes a cleaning tank 54, a cleaning roller 58, and a blade 55. The cleaning tank 54 is a tank for storing a cleaning solution used to clean ink and foreign matter adhering to the surface 23a of the endless belt 23, and the cleaning roller 58 and blade 55 are located inside the cleaning tank 54. As the cleaning solution, for example, water or a water-soluble solvent (such as an aqueous alcohol solution) can be used, and surfactants and defoamers may be added as needed.

[0186] As the cleaning roller 58 rotates, cleaning fluid is supplied to the surface 23a of the endless belt 23, and the cleaning roller 58 and the endless belt 23 slide against each other. This removes ink composition and fibers from the fabric 95 that have adhered to the endless belt 23.

[0187] The blade 55 can be made of a flexible material such as silicone rubber. The blade 55 is positioned downstream of the washing roller 58 in the conveying direction of the endless belt 23. The cleaning solution remaining on the surface 23a of the endless belt 23 is removed by the sliding motion between the endless belt 23 and the blade 55.

[0188] 2. 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.

[0189] 2.1 Preparation of the treatment solution Each component was placed in a container to obtain the composition shown in Table 1, mixed and stirred with a magnetic stirrer for 1 hour, and then filtered using an 8 μm PTFE membrane filter to obtain each treatment solution. Pure water was added so that the total volume of each treatment solution reached 100% by mass. The values ​​for cationic polymers in Table 1 represent the mass percentage of the solid content, which is the active ingredient.

[0190] [Table 1]

[0191] Further explanation is provided regarding the information in Table 1 above. • Kymene 557 (product name of SOLENIS, polyamide epichlorohydrin resin) • Orphine E1010 (product name manufactured by Nisshin Chemical Industry Co., Ltd., acetylene glycol-based surfactant) • Proxel XL2 (product name manufactured by Lonza Japan, 1,2-dibenzoisothiazolin-3-one)

[0192] 2.2 Preparation of colored ink composition Each component was placed in a container to obtain the composition shown in Table 2 below. The mixture was then mixed and stirred with a magnetic stirrer for 1 hour, and then filtered using an 8 μm PTFE membrane filter to obtain each colored ink composition. Pure water was added so that the total amount of each colored ink composition was 100% by mass. The values ​​for the first resin particles in Table 2 below represent the mass percentage of the solid content, which is the active ingredient.

[0193] The pigment was prepared by first mixing a pigment dispersant (a styrene-acrylic water-soluble resin not listed in the table) and the pigment in water at a mass ratio of pigment:pigment dispersant = 2:1, stirring, and then using this pigment dispersion for ink preparation.

[0194] [Table 2]

[0195] Further explanation is provided regarding the entries in Table 2 (above) and Table 3 (below). • UW-1527F (ETANACOL UW series UW-1527, product name manufactured by Ube Industries, Ltd., urethane resin) • Movinyl 6760 (product name of Nippon Synthetic Chemical Co., Ltd., acrylic resin) • PB15:3 (Cyan pigment, CI Pigment Blue 15:3) • TEG (Triethylene Glycol) • BTG (Triethylene Glycol Monobutyl Ether) • Orphine E1010 (product name manufactured by Nisshin Chemical Industry Co., Ltd., acetylene glycol-based surfactant) • TEA (triethanolamine)

[0196] 2.3 Preparation of non-colored ink composition Each component was placed in a container to obtain the composition shown in Table 3 below. The mixture was then stirred and mixed with a magnetic stirrer for 1 hour, and then filtered using an 8 μm PTFE membrane filter to obtain each uncolored ink composition. Pure water was added so that the total amount of each uncolored ink composition was 100% by mass. The values ​​for the second resin particles in Table 3 below represent the mass percentage of the solid content, which is the active ingredient.

[0197] [Table 3]

[0198] 2.4 Printing Recording Method Using a modified PX-H8000 (manufactured by Seiko Epson Corporation), printing was performed on a 100% cotton white broadcloth recording medium under the conditions described in Table 4 below. By performing multiple main scans (2, 4, 8, 12, or 16 times) on the same scanning area, a solid pattern image was formed on the A4-sized fabric recording medium. The printed materials for each example and comparative example were then prepared by heating and drying in an oven at 160°C for 3 minutes. Note that a "solid pattern image" refers to an image in which dots are recorded for all pixels of the smallest recording unit area defined by the recording resolution (Duty 100%).

[0199] The inkjet head used was a head unit with a nozzle-to-nozzle distance of 600 dpi in the width direction of the recording medium and 600 nozzles. In each embodiment, the head nozzle group that ejects the processing liquid and the head nozzle group that ejects the colored ink composition had portions located at the same position in the sub-scanning direction, and the head nozzle group that ejects the uncolored ink composition was located downstream of the head nozzle group that ejects the colored ink composition in the sub-scanning direction, as shown in Figure 2. As a result, the processing liquid and the colored ink composition were adhered to the same scanning area of ​​the fabric by the same main scan, and the uncolored ink composition was adhered to the same scanning area of ​​the fabric by a main scan different from the same main scan.

[0200] In contrast, Comparative Example 1 used a head configuration in which the head nozzle group for discharging the processing liquid, the head nozzle group for discharging the colored ink composition, and the head nozzle group for discharging the uncolored ink composition were all located in the same position in the sub-scanning direction. As a result, the processing liquid, the colored ink composition, and the uncolored ink composition all adhered to the same scanning area of ​​the fabric with the same main scan. In Comparative Example 2, the head nozzle group that dispenses the colored ink composition was located downstream in the sub-scanning direction from the head nozzle group that dispenses the processing liquid, and the head nozzle group that dispenses the uncolored ink composition was also located downstream in the sub-scanning direction from the head nozzle group that dispenses the colored ink composition. As a result, the processing liquid, colored ink composition, and uncolored ink composition adhered to the same scanning area of ​​the fabric by different main scans. Comparative Example 3 had the same head configuration as Comparative Example 1, but did not use a non-colored ink composition. Comparative Example 4 had the same head configuration as Comparative Example 2, but did not use a non-colored ink composition.

[0201] [Table 4]

[0202] Further explanation is provided regarding the information in Table 4 above. "Simultaneous" refers to a simultaneous adhesion process in which the processing solution and the colored ink composition are applied to the same scanning area of ​​the fabric using the same main scan. "Post-adhesion" refers to a post-adhesion step in which a non-colored ink composition is applied to the same scanning area of ​​the fabric by a main scan different from that of the simultaneous adhesion step. "Medium" refers to the process of applying the processing solution and the colored ink composition to the same scanning area of ​​the fabric using different main scans. • "Number of passes" refers to the number of times the inkjet head passes over the area during recording. For example, in each embodiment, the processing liquid and the colored ink composition are recorded on the same scanning area of ​​the fabric using the same main scan with the number of passes listed in Table 4 above, and then the non-colored ink composition is recorded on the same scanning area of ​​the fabric using a main scan different from the simultaneous adhesion step, with the number of passes listed in Table 4 above. The "processing liquid-ink time difference" refers to the time difference between the processing liquid application process and the colored ink application process. It represents the time difference between when the processing liquid is last dispensed and when the colored ink composition is first dispensed for the same scanning area of ​​the fabric. In particular, in the case of simultaneous application processes, it is the time difference between when the processing liquid is dispensed and when the colored ink composition is dispensed within the same main scan, so the shortest time difference is the length of one nozzle row. "Ink-coating liquid time difference" refers to the time difference between the colored ink application process and the non-colored ink application process, representing the time difference from when the colored ink composition is last ejected to when the non-colored ink composition is first ejected for the same scanning area of ​​the fabric.

[0203] 2.5 Evaluation Method 2.5.1 Backward penetration For the printed materials obtained as described above, the OD value of cyan on the reverse side of the print was measured using a fluorescence spectrometer ("FD-7", manufactured by Konica Minolta), and the degree of bleed-through was evaluated according to the following criteria. If the evaluation result is B or higher, it can be said that bleed-through is suppressed and contamination of the transport system is prevented. (Evaluation Criteria) A: OD value less than 0.46 B: OD value is 0.46 or higher and less than 0.6 C:OD value is 0.6 or higher

[0204] 2.5.2 Color development The OD values ​​of the cyan on the printed surface of the printed materials obtained as described above were measured using a fluorescence spectrophotometer ("FD-7", manufactured by Konica Minolta), and the color development was evaluated according to the following criteria. A result of B or higher indicates that good color development has been achieved. (Evaluation Criteria) A: OD value of 1.46 or higher B: OD value is 1.42 or higher and less than 1.46 C:OD value is less than 1.42

[0205] 2.5.3 Friction resistance The printed materials obtained above were tested for abrasion fastness using a test method compliant with ISO 105-X12, and wet abrasion fastness was evaluated according to the following criteria. A result of B or higher indicates good wet abrasion fastness. (Evaluation Criteria) A+: Level 4 or higher A: Level 3-4 B: 3rd grade C: Below Grade 3

[0206] 2.6 Evaluation Results The evaluation results are shown in Table 4 above.

[0207] As shown in Table 4 above, the process comprises a colored ink application step in which droplets of a colored ink composition containing a pigment and an anionic first resin particle are applied to a fabric, a processing liquid application step in which droplets of a processing liquid containing a cationic compound are applied to a fabric, and a non-colored ink application step in which droplets of a non-colored ink composition containing anionic second resin particle are applied to a fabric, and the processing liquid application step, the colored ink application step, and the non-colored ink application step are performed by an inkjet method, and the inkjet method is an inkjet... Each embodiment of the printing recording method, which involves performing multiple main scans by moving the print head perpendicular to the fabric transport direction, and includes a simultaneous adhesion step in which the processing liquid and the colored ink composition are adhered to the same scanning area of ​​the fabric by the same main scan, and a post-adhesion step in which the non-colored ink composition is adhered to the same scanning area of ​​the fabric by a main scan different from the simultaneous adhesion step, was able to effectively reduce bleed-through and obtain good friction fastness.

[0208] A comparison of Example 3 and Comparative Example 1 revealed that when the processing solution, colored ink composition, and uncolored ink composition (coating solution) were all applied to the same scanning area of ​​the fabric by the same main scan, the moisture content increased, resulting in poor bleed-through and color development. Furthermore, because the coating solution layer was not easily formed on the outermost surface, the friction fastness was also poor.

[0209] A comparison of Example 3 and Comparative Example 2 revealed that when the processing solution, colored ink composition, and uncolored ink composition adhere to the same scanning area of ​​the fabric through different main scans, the reaction between the processing solution and the coating solution becomes less likely, resulting in inferiority in all aspects: bleed-through, color development, and friction fastness.

[0210] A comparison between Example 3 and Comparative Example 3 showed that friction fastness was inferior when the coating liquid was not used. Furthermore, the lack of a light scattering prevention effect on the recording surface due to the coating liquid layer resulted in slightly inferior color development.

[0211] A comparison between Example 3 and Comparative Example 4 showed that friction fastness was inferior when the coating solution was not used. Furthermore, because the ink and processing solution did not adhere simultaneously, and their reactivity was reduced, color development and bleed-through were also inferior.

[0212] The results from Examples 1-3 showed that when the treatment solution contained both a cationic polymer and a polyvalent metal salt as cationic compounds, the bleed-through, color development, and friction fastness were improved.

[0213] The results from Examples 3, 4, and 5 showed that when the time difference between the colored ink application process and the non-colored ink application process was within 10 seconds, bleed-through and friction fastness were improved. This is thought to be because the treatment solution mixed with the coating solution before it could penetrate deep into the fabric, making it more reactive with the coating solution.

[0214] The results from Examples 3 and 6 showed that even when the time difference between the processing solution application step and the colored ink application step was shorter, the print showed good bleed-through, color development, and friction fastness.

[0215] The results from Examples 3, 7, and 8 showed that increasing the number of passes tended to result in better show-through and color development. This is thought to be because the processing solution and the colored ink composition overlap more alternately (like a mille-feuille), allowing the components of both to mix more easily and the reaction to proceed more smoothly.

[0216] The results from Examples 3 and 9 show that when the resin particles contained in the colored ink composition are urethane resin, the aggregation and thickening effect is further promoted in the reaction with the cationic compound in the processing solution, resulting in better show-through and color development.

[0217] The results from Examples 3 and 10 show that when the resin particles contained in the non-colored ink composition are urethane resin, the aggregation and thickening effect is further promoted in the reaction with the cationic compound in the processing liquid, and the coating liquid layer on the surface is made tougher, resulting in better bleed-through, color development, and friction fastness.

[0218] The following conclusions can be drawn from the embodiments described above.

[0219] One aspect of the printing record method is: A colored ink application step in which droplets of a colored ink composition containing a pigment and anionic first resin particles are attached to a fabric, A treatment solution application step in which droplets of a treatment solution containing a cationic compound are attached to the fabric, The process includes a non-colored ink application step of applying droplets of a non-colored ink composition containing anionic second resin particles to the fabric, The processing liquid application step, the colored ink application step, and the non-colored ink application step are performed by an inkjet method. The aforementioned inkjet method involves performing multiple main scans, in which the inkjet head is moved perpendicular to the fabric transport direction to record the data. A simultaneous adhesion step in which the processing liquid and the colored ink composition are applied to the same scanning area of ​​the fabric by the same main scan, A post-adhesion step is performed after the simultaneous adhesion step, in which the non-colored ink composition is adhered to the same scanning area of ​​the fabric by a main scan different from the simultaneous adhesion step. It possesses the following characteristics.

[0220] In one embodiment of the above-described printing recording method, The colored ink application step, the processing liquid application step, and the non-colored ink application step may be performed on the same support.

[0221] In any of the above embodiments of the printing recording method, The support may be a belt having an adhesive layer.

[0222] In any of the above embodiments of the printing recording method, The time difference between the colored ink application step and the non-colored ink application step may be 10 seconds or less.

[0223] In any of the above embodiments of the printing recording method, The time difference between the colored ink application step and the non-colored ink application step may be 1 second or more.

[0224] In any of the above embodiments of the printing recording method, The same main scan may be performed multiple times on the same scanning area.

[0225] In any of the above embodiments of the printing recording method, The cationic compound may contain at least one of a polyvalent metal salt or a cationic polymer.

[0226] In any of the above embodiments of the printing recording method, The cationic polymer may be one or more selected from polyamide epichlorohydrin resin, polyamine epichlorohydrin resin, melamine resin, blocked isocyanate resin, oxazoline, and carbodiimide.

[0227] In the aspect of any of the above-described resist printing recording methods, The content of the cationic polymer may be 1 to 10% by mass based on the total amount of the treatment liquid.

[0228] In the aspect of any of the above-described resist printing recording methods, The first resin particles may be a urethane resin.

[0229] In the aspect of any of the above-described resist printing recording methods, The second resin particles may be a urethane resin.

[0230] In the aspect of any of the above-described resist printing recording methods, The fabric may have a hydroxyl group.

[0231] In the aspect of any of the above-described resist printing recording methods, The head nozzle group for discharging the treatment liquid is at the same position as the head nozzle group for discharging the colored ink composition with respect to the conveyance direction of the fabric, or has a portion overlapping with the head nozzle group for discharging the colored ink composition with respect to the conveyance direction, The head nozzle group for discharging the non-colored ink composition may be downstream of the head nozzle group for discharging the colored ink composition with respect to the conveyance direction of the fabric.

[0232] The present invention is not limited to the above-described embodiments, and various modifications are possible. For example, the present invention includes a configuration that is substantially the same as the configuration described in the embodiments, for example, a configuration having the same functions, methods, and results, or a configuration having the same purpose and effects. Further, the present invention includes a configuration in which a non-essential part of the configuration described in the embodiments is replaced. Further, the present invention includes a configuration that exhibits the same operational effects as the configuration described in the embodiments or a configuration that can achieve the same purpose. Further, the present invention includes a configuration in which a known technique is added to the configuration described in the embodiments.

Explanation of Signs

[0233] 1...Control unit, 10...Media supply unit, 11...Supply shaft unit, 12...Bearing unit, 20...Media transport unit, 21...Transport roller, 22...Transport roller, 23...Endless belt, 23a...Surface, 23b...Inner surface, 24...Belt rotating roller, 25...Belt drive roller, 26...Transport roller, 27...Heating unit, 28...Transport roller, 29...Adhesive, 30...Media recovery unit, 31...Winding shaft unit, 32...Bearing unit, 40...Printing unit, 42 (42a, 42b, 42c)...Inkjet Jet head, 43...carriage, 45...carriage movement section, 45a...guide rail, 45b...guide rail, 46...platen, 50...washing unit, 51...washing section, 52...pressing section, 53...moving section, 54...washing tank, 55...blade, 56...air cylinder, 57...ball bush, 58...washing roller, 60...media contact section, 61...pressing section, 69...contact section, 90...frame section, 91...belt support section, 95...fabric, 99...floor surface, 100...recording device

Claims

1. A colored ink application step in which droplets of a colored ink composition containing a pigment and anionic first resin particles are attached to a fabric, A treatment solution application step in which droplets of a treatment solution containing a cationic compound are attached to the fabric, The process includes a non-colored ink application step of applying droplets of a non-colored ink composition containing anionic second resin particles to the fabric, The processing liquid application step, the colored ink application step, and the non-colored ink application step are performed by an inkjet method. The aforementioned inkjet method involves performing multiple main scans, in which the inkjet head is moved perpendicular to the fabric transport direction to record the data. A simultaneous adhesion step in which the processing liquid and the colored ink composition are applied to the same scanning area of ​​the fabric by the same main scan, A post-adhesion step is performed after the simultaneous adhesion step, in which the non-colored ink composition is adhered to the same scanning area of ​​the fabric by a main scan different from the simultaneous adhesion step. It has, The cationic compound contains a polyvalent metal salt and a cationic polymer, The cationic polymer is one or more selected from polyamide epichlorohydrin resin, polyamine epichlorohydrin resin, melamine resin, blocked isocyanate resin, oxazoline, and carbodiimide. The first resin particles and the second resin particles are urethane resin, A method for printing and recording, wherein the fabric has hydroxyl groups.

2. The printing recording method according to claim 1, wherein the colored ink application step, the processing liquid application step, and the non-colored ink application step are performed on the same support.

3. The printing recording method according to claim 2, wherein the support is a belt having an adhesive layer.

4. The printing recording method according to any one of claims 1 to 3, wherein the time difference between the colored ink application step and the non-colored ink application step is 10 seconds or less.

5. The printing recording method according to any one of claims 1 to 4, wherein the time difference between the colored ink application step and the non-colored ink application step is 1 second or more.

6. The printing recording method according to any one of claims 1 to 5, wherein the same main scan is performed multiple times on the same scanning area.

7. The method for printing and recording according to any one of claims 1 to 6, wherein the content of the cationic polymer is 1 to 10% by mass with respect to the total amount of the processing solution.

8. The head nozzle group that discharges the processing liquid is located at the same position as the head nozzle group that discharges the colored ink composition with respect to the fabric transport direction, or has a portion that overlaps with the head nozzle group that discharges the colored ink composition with respect to the transport direction. The printing recording method according to any one of claims 1 to 7, wherein the group of head nozzles that dispense the non-colored ink composition is located downstream in the transport direction of the fabric from the group of head nozzles that dispense the colored ink composition.

Images