Image formation method and treatment liquid set

Abstract

To provide an image formation method which can impart a formed image having sufficient water resistance (wet friction fastness) without impairing feeling of a fabric.SOLUTION: An image formation method includes the steps of: imparting a first post treatment liquid containing 2 mass% or more of a water-swellable resin (A) and water onto a fabric, and forming a coating film; and imparting a second post treatment liquid containing a water-swelling inhibitor (B) and water onto the coating film. On the surface of the coating film, the water-swelling inhibitor (B) lowers a water-swelling level of the water-swellable resin (A) by reaction or interaction with the water-swellable resin (A).SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to an image forming method, an image formed product, and a processing liquid set. [Background technology]

[0002] Methods for forming images on woven or nonwoven fabrics include screen printing and roller printing. In recent years, inkjet printing, which uses computer-generated image processing to print virtually plate-free, has been under study.

[0003] There are two types of coloring materials for textile printing inks: dyes and pigments. Inks using dyes have the advantage of not only good color development but also high color fastness because they react with the functional groups of the fibers. However, they require post-processing such as a steaming process to fix the dye and a process to remove any unfixed dye, which can be a problem as it requires a lot of work.

[0004] On the other hand, pigment-based inks are preferred over dye-based inks for their simplicity, as they can form images with high lightfastness and do not require post-processing such as removing unfixed dye. Pigment-based inks require a binder component to fix the pigment. In inkjet printing, there are restrictions on the amount of binder component that can be added due to the ink viscosity and ejection properties, which makes pigment fixation and fastness problematic.

[0005] In response to this, Patent Document 1 proposes a method for producing a printed textile, which includes the steps of printing a fabric with ink, applying a middle coating agent containing a resin (C) having a film ductility of 400 to 1500%, and applying an overcoat agent containing a resin (D) having a film ductility of 100 to 400%. Patent Document 2 proposes a coating method, which includes the step of applying an ink-jet overcoat liquid containing a urethane resin (water-dispersible resin), a blocked isocyanate compound (crosslinking component), a water-soluble organic solvent, and water to the ink-applied fabric. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-150454 [Patent Document 2] Japanese Patent Application Laid-Open No. 2017-149812 Summary of the Invention [Problem to be solved by the invention]

[0007] However, the overcoat solution of Patent Document 2 involves a crosslinking reaction of the resin, so the resulting overcoat layer tends to be hard and the texture of the fabric tends to be impaired. Patent Document 1 uses a middle coat agent and an overcoat agent in combination, but the water resistance (wet rub fastness) of the resulting image-formed product is insufficient.

[0008] The present invention has been made in view of the above circumstances, and aims to provide an image-forming method and an image-formed product, which are capable of imparting an image-formed product with sufficient water resistance (wet rubbing fastness) without impairing the texture of the fabric, as well as a processing liquid set to be used therewith. [Means for solving the problem]

[0009] The image forming method of the present invention comprises the steps of applying a first post-treatment liquid containing 2% by mass or more of a water-swellable resin (A) and water onto a fabric to form a coating film, and applying a second post-treatment liquid containing a water-swelling inhibitor (B) and water to the surface of the coating film, wherein the water-swelling inhibitor (B) reacts or interacts with the water-swellable resin (A) on the surface of the coating film to reduce the water swelling of the water-swellable resin (A).

[0010] The image-formed product of the present invention comprises, in this order, a fabric, a first treatment layer containing a water-swellable resin (A), and a second treatment layer containing the water-swellable resin (A) whose degree of swelling in water has been reduced by reaction or interaction with a water-swelling inhibitor (B).

[0011] The treatment liquid set of the present invention is a treatment liquid set used in inkjet textile printing, and comprises a first post-treatment liquid containing 2% by mass or more of a water-swellable resin (A) and water, and a second post-treatment liquid containing a water-swelling inhibitor (B) that reacts or interacts with the water-swellable resin (A) to reduce the degree of water swelling of the water-swellable resin (A), and water. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide an image forming method and an image formed product that can provide an image formed product having sufficient water resistance (wet rub fastness) without damaging the texture of the fabric, as well as a processing liquid set used therefor. DETAILED DESCRIPTION OF THE INVENTION

[0013] As a result of extensive research, the present inventors have found that by applying a second post-treatment liquid (post-treatment liquid) containing a water-swelling resin (A) to the surface of a coating film coated with a first post-treatment liquid (treatment liquid) containing a water-swelling resin (A), and allowing the water-swelling inhibitor (B) to react or interact with the second post-treatment liquid, a layer with low water swelling can be formed on the surface of the coating film, thereby improving wet rub fastness without impairing the texture of the fabric.

[0014] The mechanism behind this is unclear, but is presumed to be as follows. A coating film (e.g., a first treated layer) of a first post-treatment liquid containing a water-swellable resin (A) is relatively flexible and therefore does not impair the texture of the fabric. Furthermore, a layer (e.g., a second treated layer) formed on the surface of the coating film by applying a second post-treatment liquid contains a water-swellable resin (A) whose degree of water swelling has been reduced by, for example, reaction with a water-swell inhibitor (B), and therefore can have good wet rub fastness. This makes it possible to improve wet rub fastness without impairing the texture of the fabric. The configuration of the present invention will be described below.

[0015] 1. Image forming method The image forming method of the present invention includes a step of applying a first post-treatment liquid onto a fabric to form a coating film, and a step of applying a second post-treatment liquid onto the coating film. In the step of applying the second post-treatment liquid, the water-swellable resin (A) reacts or interacts with the water-swelling inhibitor (B) on the surface of the coating film, thereby reducing the water swelling of the water-swellable resin (A).

[0016] The fabric may have a colorant layer formed thereon, or may not have a colorant layer formed thereon. In the following embodiment, an example will be described in which a fabric having a colorant layer formed thereon is used.

[0017] That is, an image forming method according to one embodiment of the present invention can include: 1) a step of forming a colorant layer on a fabric; 2) a step of applying a first post-treatment liquid onto the colorant layer to form a coating film; and 3) a step of applying a second post-treatment liquid onto the obtained coating film.

[0018] Step 1) (step of applying ink) The color material layer can be formed, for example, by applying ink onto the fabric using an inkjet method and then drying the ink.

[0019] (fabric) The fiber material constituting the fabric is not particularly limited, but may be natural fibers such as cotton (cellulose fiber), hemp, wool, or silk, or chemical fibers such as rayon, vinylon, nylon, acrylic, polyurethane, polyester, or acetate. The fabric may be any form of fabric made from these fibers, such as woven fabric, nonwoven fabric, or knitted fabric. The fabric may also be a blended woven fabric or blended nonwoven fabric of two or more types of fibers. The fabric may be pretreated (see step 4) described below).

[0020] (Ink application and drying) Next, ink is ejected from an inkjet recording head onto the surface of the fabric, depositing ink droplets.

[0021] As described below, the ink is a water-based ink containing a dispersible colorant such as a pigment and water. From the viewpoint of improving the dispersibility of the dispersible colorant, the ink preferably further contains a polymer dispersant or contains a self-dispersible pigment as the dispersible colorant. Details of the ink composition will be described later.

[0022] The ink applied to the fabric is then dried and fixed to form a colorant layer. Drying and fixing are preferably performed by heating. That is, the drying method is not particularly limited, and may be a method using a heater, a hot air dryer, a heated roller, or the like. Among these, it is preferable to heat and dry both sides of the fabric using a hot air dryer and a heater.

[0023] The drying temperature is not particularly limited, but from the viewpoint of sufficiently removing solvent components such as water contained in the applied ink, it is preferably 110° C. or higher, and more preferably 130 to 180° C. The drying time varies depending on the drying temperature, but can be, for example, about 0.5 to 10 minutes.

[0024] Regarding step 2) (step of applying the first post-treatment liquid) Next, a first post-treatment liquid is applied onto the resulting colorant layer to form a coating film. In this embodiment, the coating film protects the colorant layer and can impart wet rub fastness.

[0025] (First post-treatment liquid) The first post-treatment liquid contains a water-swellable resin (A) and water.

[0026] The term "water-swellable" in the water-swellable resin (A) refers to the property of swelling in water (swelling degree in water is at least a certain level).

[0027] The water swelling degree of the water-swellable resin (A) can be measured by the following procedure. 1) The aqueous dispersion of the water-swellable resin (A) is dried and solidified at 70°C and 30 to 35% RH for 48 hours to obtain pellets. The weight of the obtained pellets is measured. 2) Next, the obtained pellets are immersed in ion-exchanged water at 20°C for 5 minutes, dried under the same conditions as above, and weighed. The pellet weights before and after immersion in ion-exchanged water are then applied to the following formula to calculate the degree of swelling in water (%). Formula (1): Water swelling degree (%) = (pellet weight after immersion - pellet weight before immersion) / (pellet weight before immersion) × 100

[0028] Specifically, the water-swellable resin (A) is a resin having a water swelling degree of 50% or more, preferably 70% or more, and more preferably 75 to 100%. Resins having a water swelling degree that falls within the above range not only have appropriate flexibility but also have bulky groups, so that they are less likely to penetrate into the interior of the fabric (or colorant layer) and tend to remain on the surface of the fabric. As a result, the fabric is less likely to become hard and the texture is less likely to be impaired.

[0029] There are no particular restrictions on the water-swellable resin (A), so long as its water swelling degree satisfies the above range and it can react with or interact with the water-swelling inhibitor (B) contained in the second post-treatment liquid described below. That is, the water-swellable resin (A) (contained in the first post-treatment liquid) has a group, preferably an ionic group, that can react with or interact with the water-swelling inhibitor (B) (contained in the second post-treatment liquid).

[0030] The ionic group of the water-swellable resin (A) forms a pair with the ionic group of the water-swelling inhibitor (B). That is, it is preferable that the water-swellable resin (A) has an anionic group and the water-swelling inhibitor (B) has a cationic group, or that the water-swellable resin (A) has a cationic group and the water-swelling inhibitor (B) has an anionic group. Of these, it is preferable that the water-swellable resin (A) has an anionic group and the water-swelling inhibitor (B) has a cationic group.

[0031] The anionic group of the water-swellable resin (A) is an acidic group such as a carboxyl group, a sulfonyl group, or a phosphorus-containing group (a phosphate group or a phosphonate group), preferably a carboxyl group. Examples of the water-swellable resin (A) having an anionic group include (meth)acrylic resins having an anionic group, urethane resins having an anionic group, and vinyl resins having an anionic group, and preferably a (meth)acrylic resin having an anionic group.

[0032] The (meth)acrylic resin having an anionic group may be a polymer containing structural units derived from a (meth)acrylic monomer having an anionic group. Examples of such monomers include carboxyl group-containing ethylenically unsaturated monomers such as (meth)acrylic acid. Note that (meth)acrylic acid refers to at least one of acrylic acid and methacrylic acid. The polymer may further contain structural units derived from other copolymerization components such as alkyl (meth)acrylates having 1 to 20 carbon atoms and styrenes.

[0033] Examples of commercially available products include Joncryl PDX-7326 (anionic acrylic emulsion, water swelling rate 76%) and urethane resin (Takelac W-6061 manufactured by Mitsui Chemicals, anionic urethane resin emulsion, water swelling rate 88%).

[0034] The acid value of the water-swellable resin (A) having anionic groups is not particularly limited, but may be, for example, 30 to 100 mgKOH / g. When the acid value is within the above range, the water swelling degree tends to be within the above range. The acid value can be measured by the acid value measurement method according to JIS K 0070.

[0035] The content of the water-swellable resin (A) is preferably 2% by mass or more, and more preferably 5 to 20% by mass, relative to the first post-treatment liquid. When the content of the water-swellable resin (A) is within the above range, not only can a uniform coating film be formed on the fabric, but the colorant layer also has excellent protection and fixation properties.

[0036] The first post-treatment liquid may further contain other components as needed, such as a solvent, a preservative, an activator, and a coloring material.

[0037] (solvent) The solvent is not particularly limited, but is preferably a water-soluble organic solvent, as long as it is compatible with water.

[0038] Examples of water-soluble organic solvents include glycerin, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 1,2-pentanediol, 1,3-pentanediol, 1,5-pentanediol, 1,2-hexanediol, 1,6-hexanediol, 1,2,6-hexanetriol, 1,2-heptanediol, 1,2-octanediol, 1,8-octanediol, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, pentamethylene glycol, trimethylene glycol, 2-butene-1,4-diol, 2-ethyl-1,3-hexanediol, 2-methyl-2,4-pentanediol, dipropylene glycol, tetraethylene glycol, trimethylolpropane, and trimethylolethane. In particular, from the viewpoints of viscosity adjustment, ejection characteristics, and moisturizing function, it is more preferable to use at least one of glycerin, triethylene glycol, propylene glycol, diethylene glycol, and 1,2-hexanediol. These may be used alone or in combination of two or more.

[0039] (preservatives) Examples of preservatives include aromatic halogen compounds (eg, Preventol CMK), methylene dithiocyanate, halogen-containing nitrogen-sulfur compounds, 1,2-benzisothiazolin-3-one (eg, PROXEL GXL), and the like.

[0040] (activator) Examples of the active agent include surfactants such as acetylene glycol surfactants (such as Olfine E1010).

[0041] (pH adjuster) Examples of pH adjusters include citric acid, sodium citrate, hydrochloric acid, sodium hydroxide, and the like.

[0042] (colorant) The first post-treatment liquid may further contain a coloring material as needed. When the first post-treatment liquid further contains a coloring material, the first post-treatment liquid can also be used as ink. The coloring material can be the same as the coloring material contained in the ink described below.

[0043] The content of the coloring material may be 0 to 10% by mass relative to the first post-treatment liquid. In this embodiment, since the coloring material layer is formed using ink, it is preferable that the first post-treatment liquid does not contain a coloring material.

[0044] (Application of first post-treatment liquid) The method for applying the first post-treatment liquid is not particularly limited, and may be, for example, a pad method, a coating method, a spray method, an inkjet method, etc. Among these, the pad method is preferred from the viewpoint of being able to apply the liquid uniformly in a short time.

[0045] The amount of water-swellable resin (A) attached by the first post-treatment liquid x (g / m 2 ) is not particularly limited as long as it is within a range that does not impair the texture of the fabric and that can enhance, for example, the protection and fixation of the colorant layer. 2 ) is preferably greater than 0.2 g / m. Specifically, it is preferable that the ratio y / x of the adhesion amount x of the water-swellable resin (A) to the adhesion amount y of the water-swelling inhibitor (B) is set to be in the range described below. More specifically, the adhesion amount x of the water-swellable resin (A) by the first post-treatment liquid is, for example, 0.2 to 10 g / m. 2 , preferably 0.5 to 5 g / m 2 The amount x of the water-swellable resin (A) adhered can be calculated, for example, from the composition of the first post-treatment liquid and the amount of the first post-treatment liquid adhered to the fabric.

[0046] (Drying of the first post-treatment liquid) The first post-treatment liquid is preferably dried to a degree that the solvent component in the first post-treatment liquid is evaporated and removed to a suitable degree to form a film. The drying method is not particularly limited, but is preferably performed by heating. The heating method may be the same as described above, and may be, for example, a method using a hot air dryer or a heater.

[0047] The drying temperature is not particularly limited, provided that the solvent in the first post-treatment liquid is removed and a film-like substance is obtained, and may be, for example, 50 to 150° C. When the first post-treatment liquid contains a solvent with a boiling point higher than that of water, it is preferable to first evaporate the water at 100° C. or less, and then dry at as high a temperature as possible.

[0048] Regarding step 3) (step of applying the second post-treatment liquid) A second post-treatment liquid is applied to the resulting coating film, and the water-swelling inhibitor (B) contained in the second post-treatment liquid reacts or interacts with the water-swellable resin (A) contained in the surface (or surface layer) of the coating film, thereby reducing the water swelling of the water-swellable resin (A).

[0049] (Second post-processing liquid) The second post-treatment liquid contains a water-swelling inhibitor (B) and water.

[0050] As described above, the water-swelling inhibitor (B) reacts or interacts with the water-swelling resin (A) to reduce the water swelling of the water-swelling resin (A). That is, the water-swelling inhibitor (B) preferably has an ionic group that forms a pair with the ionic group contained in the water-swelling resin (A), and more preferably has a cationic group that forms a pair with the anionic group contained in the water-swelling resin (A).

[0051] Examples of the cationic group contained in the water swelling inhibitor (B) include a secondary amino group (imino group), a tertiary amino group, or a quaternary ammonium salt group.

[0052] The water swelling inhibitor (B) can be an acrylic resin having a cationic group, a polyvalent metal salt, or an organic acid.

[0053] The acrylic resin having a cationic group can be a polymer having a structural unit derived from a (meth)acrylic monomer having a cationic group. Examples of the (meth)acrylic monomer having a cationic group include (meth)acrylate having a cationic group and (meth)acrylamide having a cationic group.

[0054] Examples of acrylic resins having cationic properties include cationic poly(meth)acrylate, cationic poly(meth)acrylamide, cationic (meth)acrylate-acrylamide copolymer, and cationic methacrylate-methacrylate copolymer. Examples of commercially available products include the RKW series manufactured by Taisei Fine Chemical Co., Ltd., and Vinyblan 1008, 1028, and 2687 manufactured by Nissin Chemical Industry Co., Ltd. (all cationized polyacrylates); Sumifloc FC-A and Sumifloc FC-B manufactured by Sumitomo Chemical Co., Ltd. (all cationized polymethacrylates); Sanfloc C-450 and Sanfloc C-454 manufactured by Sanyo Chemical Co., Ltd., and Sumifloc FC-L manufactured by Sumitomo Chemical Co., Ltd.; Himo Corporation's Himoloc MP series, E series, and M-966 (cationized polyacrylamide); and Sumitomo Chemical Co., Ltd.'s Sumifloc FC-373, Sumifloc FC-200, and Sumifloc FC-C (cationized methacrylate-acrylamide copolymers), and Sumitomo Chemical Co., Ltd.'s Sumifloc FC-E (cationized methacrylate-methacrylate copolymers).

[0055] The polyvalent metal salt may be a calcium salt, a magnesium salt, or an aluminum salt. These polyvalent metal salts have many reaction sites (action sites) with the anionic groups of the water-swellable resin (A), and are therefore likely to achieve a cross-linking effect (the action of forming multiple ionic bonds). This can reduce the degree of water swelling of the water-swellable resin (A) on the surface or surface layer of the coating film of the first post-treatment liquid. Of these, calcium salts or aluminum salts are more preferred as the polyvalent metal salt.

[0056] Examples of polyvalent metal salts include metal salts of inorganic acids such as calcium chloride, magnesium chloride, aluminum chloride, calcium nitrate, magnesium nitrate, and magnesium sulfate.

[0057] Examples of organic acids include citric acid, malic acid, succinic acid, tartaric acid, phthalic acid, glycine, glutamic acid, pyrrolidonecarboxylic acid, pyronecarboxylic acid, pyrrolecarboxylic acid, furancarboxylic acid, pyridinecarboxylic acid, coumaric acid, thiophenecarboxylic acid, nicotinic acid, acetic acid, and lactic acid. Of these, lactic acid is preferred.

[0058] The second post-treatment liquid may further contain other components as required, similar to the first post-treatment liquid.

[0059] The content of the water swelling inhibitor (B) can be 0.1 to 10% by mass of the second post-treatment liquid. When the content of the water swelling inhibitor (B) is within this range, the second post-treatment liquid has an appropriately low viscosity, making it suitable for application by, for example, an inkjet method.

[0060] (Application of second post-treatment liquid) The method for applying the second post-treatment liquid is not particularly limited, and may be, for example, a coating method, a spray method, an inkjet method, etc. Among these, the inkjet method is preferred from the viewpoint of easily forming a thin coating film of the second treatment liquid on the surface (or outer layer) of the coating film of the first post-treatment liquid.

[0061] The amount of water swelling inhibitor (B) deposited by the second post-treatment liquid y (g / m 2) is not particularly limited as long as it is sufficient to modify the water-swellable resin (A) near the surface of the coating film of the first post-treatment liquid (to reduce its water swelling), but is preferably less than the amount x of the water-swellable resin (A) deposited by the first post-treatment liquid. Specifically, the mass ratio y / x of the amount y of the water-swellable resin (A) deposited by the second post-treatment liquid to the amount x of the water-swellable resin (A) deposited by the first post-treatment liquid can be set to be 0.01 or more and less than 1, preferably 0.01 to 0.5, and more preferably 0.01 to 0.1. When y / x is within the above range, the layer of the water-swellable resin (A) whose water swelling is reduced by the water-swelling inhibitor (B) is appropriately thin, which makes it easy to improve wet rub fastness without impairing the texture. More specifically, the amount y of the water swelling inhibitor (B) deposited by the second post-treatment liquid varies depending on the type of agent, but is, for example, 0.01 to 10 g / m 2 , preferably 0.1 to 5 g / m 2 The amount y of the water swelling inhibitor (B) adhered can be calculated, for example, from the composition of the second post-treatment liquid and the amount of the second post-treatment liquid adhered to the fabric.

[0062] (Drying of second post-treatment liquid) The second post-treatment liquid is preferably dried to a degree that the solvent component in the second post-treatment liquid is evaporated and removed to a suitable degree to form a film. The drying method is not particularly limited, but is preferably performed by heating. The heating method may be the same as described above, and may be, for example, a method using a hot air dryer or a heater.

[0063] The drying temperature is not particularly limited as long as it is at a level at which the solvent in the second post-treatment liquid can be removed, and may be, for example, 130 to 180°C.

[0064] The image forming method of the present invention may further include the step 4) of pretreating the fabric, if necessary.

[0065] Regarding step 4 (pre-processing step) The pretreatment can be carried out by applying a pretreatment liquid to the fabric.

[0066] The pretreatment liquid is not particularly limited as long as it contains a component that enhances the fixation of ink to the surface of the fabric. Examples of such components include compounds having anionic groups (e.g., carboxyl groups, phosphate groups, phosphonate groups, sulfonate groups, etc.) and compounds having cationic groups (e.g., amino groups, quaternary ammonium groups, etc.).

[0067] Examples of compounds having a cationic group include polyvalent metal salts, resins having a cationic group (such as cationic urethane resins and cationic olefin resins), and cationic surfactants.

[0068] Examples of compounds having an anionic group include resins having an anionic group (for example, plant skins such as pectinic acid, cellulose derivatives such as carboxymethyl cellulose, modified starches such as carboxymethyl starch and carboxyethyl starch, acrylic polymers having acrylic acid as a copolymerization component such as acrylic acid-acrylic acid ester copolymers and styrene-acrylic acid copolymers), and anionic surfactants.

[0069] The pretreatment liquid may further contain other ingredients such as a preservative and a pH adjuster, as described above.

[0070] The method for applying the pretreatment liquid may be the same as that described above. The pretreatment liquid applied to the fabric may be heated and dried using hot air, a hot plate, or a heat roller.

[0071] Next, the processing liquid set or ink set used in the image forming method of the present invention will be described.

[0072] 2. Processing solution set A processing liquid set according to one embodiment of the present invention includes a first post-processing liquid and a second post-processing liquid.

[0073] The first and second post-treatment liquids in the treatment liquid set according to this embodiment are the same as the first and second post-treatment liquids in the image forming method according to this embodiment. That is, the first post-treatment liquid contains 2% by mass or more of a water-swellable resin (A) and water. The second post-treatment liquid contains a water-swelling inhibitor (B) and water. The water-swelling inhibitor (B) contained in the second post-treatment liquid reacts with or interacts with the water-swellable resin (A) to reduce the degree of swelling of the water-swellable resin (A).

[0074] The treatment liquid set may be an ink set that further includes an ink. That is, the ink set according to this embodiment further includes an ink in addition to the first and second post-treatment liquids described above.

[0075] 2-1.Ink The ink contains a dispersible colorant and water.

[0076] (1) Dispersible coloring material The dispersible colorant is not particularly limited and may be a solid dye such as a disperse dye or a pigment. Among these, pigments are preferred from the viewpoint of facilitating the formation of an image with excellent weather resistance.

[0077] (pigment) The pigment is not particularly limited, but may be, for example, an organic pigment or an inorganic pigment having the following numbers listed in the Color Index:

[0078] Examples of red or magenta pigments include Pigment Red 3, 5, 19, 22, 31, 38, 43, 48:1, 48:2, 48:3, 48:4, 48:5, 49:1, 53:1, 57:1, 57:2, 58:4, 63:1, 81, 81:1, 81:2, 81:3, 81:4, 88, 104, 108, 112, 122, 123, 144, 146, 149, 166, 168, 169, 170, 177, 178, 179, 184, 185, 208, 216, 226, and 257; Pigment Violet 3, 19, 23, 29, 30, 37, 50, and 88; and Pigment Orange 13, 16, 20, and 36.

[0079] Examples of blue or cyan pigments include Pigment Blue 1, 15, 15:1, 15:2, 15:3, 15:4, 15:6, 16, 17-1, 22, 27, 28, 29, 36, 60.

[0080] Examples of green pigments include Pigment Green 7, 26, 36, and 50. Examples of yellow pigments include Pigment Yellow 1, 3, 12, 13, 14, 17, 34, 35, 37, 55, 74, 81, 83, 93, 94, 95, 97, 108, 109, 110, 137, 138, 139, 153, 154, 155, 157, 166, 167, 168, 180, 185, and 193.

[0081] Examples of black pigments include Pigment Black 7, 28, and 26.

[0082] Commercially available examples of pigments include Cromofine Yellow 2080, 5900, 5930, AF-1300, 2700L, Cromofine Orange 3700L, 6730, Cromofine Scarlet 6750, Cromofine Magenta 6880, 6886, 6891N, 6790, 6887, Cromofine Violet RE, Cromofine Red 6820, 6830, Cromofine Blue HS-3, 5187, 5108, 5197, 5085N, SR-5020, 5026, 5050, 4920, 4927, 4937, 4824, 4933GN-EP, 4940, 4973, 5205, 5208, 5214, 5221, and 5000P. , Cromofine Green 2GN, 2GO, 2G-550D, 5310, 5370, 6830, Cromofine Black A-1103, Seika Fast Yellow 10GH, A-3, 2035, 2054, 2200, 2270, 2300, 2400(B), 2500, 2600, ZAY-260, 2700(B), 2770 Seika Fast Red 8040, C405(F), CA120, LR-116, 1531B, 8060R, 1547, ZAW-262, 1537B, GY, 4R-4016, 3820, 3891, ZA-215, Seika Fast Carmine 6B1476T-7, 1483LT, 3840, 3870, Seika Fast Bordeaux 10B-430, Seika Light Rose R40, Seika Light Violet B800, 7805, Seika Fast Maroon 460N, Seika Fast Orange 900, 2900, Seika Light Blue C718, A612, Cyanine Blue 4933M, 4933GN-EP, 4940, 4973 (manufactured by Dainichi Seika Color & Chemicals); KET Yellow 401, 402, 403, 404, 405, 406, 416, 424, KET Orange 501, KET Red 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 336, 337, 338, 346, KET Blue 101, 102, 103, 104, 105, 106, 111, 118, 124, KET Green 201 (manufactured by Dainippon Ink & Chemicals);Colortex Yellow 301, 314, 315, 316, P-624, 314, U10GN, U3GN, UNN, UA-414, U263, Finecol Yellow T-13, T-05, Pigment Yellow1705, Colortex Orange 202, Colortex Red101, 103, 115, 116, D3B, P-625, 102, H-1024, 105C, UFN, UCN, UBN, U3BN, URN, UGN, UG276, U456, U457, 105C, USN, Colortex Maroon601, Colortex BrownB610N, Colortex Violet600, Pigment Red 122, Colortex Blue516, 517, 518, 519, A818, P-908, 510, Colortex Green 402, 403, Colortex Black 702, U905 (manufactured by Sanyo Pigment); Lionol Yellow 1405G, Lionol Blue FG7330, FG7350, FG7400G, FG7405G, ES, ESP-S (manufactured by Toyo Ink Co., Ltd.); Toner Magenta E02, Permanent Rubin F6B, Toner Yellow HG, Permanent Yellow GG-02, Hostapearm Blue B2G (manufactured by Hoechst Industrie); Novoperm P-HG, Hostaperm Pink E, Hostaperm Blue B2G (manufactured by Clariant); carbon black #2600, #2400, #2350, #2200, #1000, #990, #980, #970, #960, #950, #850, MCF88, #750, #650, MA600, MA7, MA8, MA11, MA100, MA100R, MA77, #52, #50, #47, #45, #45L, #40, #33, #32, #30, #25, #20, #10, #5, #44, and CF9 (manufactured by Mitsubishi Chemical);

[0083] (self-dispersing pigment) The pigment may be a self-dispersing pigment. A self-dispersing pigment is a pigment particle whose surface is modified with a group having a hydrophilic group, and has pigment particles and hydrophilic groups bonded to the surface of the pigment particles.

[0084] Examples of hydrophilic groups include carboxyl groups, sulfonic acid groups, and phosphorus-containing groups, and examples of phosphorus-containing groups include phosphoric acid groups, phosphonic acid groups, phosphinic acid groups, phosphite groups, and phosphate groups.

[0085] Examples of commercially available self-dispersing pigments include Cabot Corporation's Cab-0-Jet (registered trademark) 200K, 250C, 260M, and 270V (sulfonic acid group-containing self-dispersing pigments), Cab-0-Jet (registered trademark) 300K (carboxylic acid group-containing self-dispersing pigments), and Cab-0-Jet (registered trademark) 400K, 450C, 465M, 470V, and 480V (phosphate group-containing self-dispersing pigments).

[0086] The content of the dispersible colorant is not particularly limited, but from the viewpoint of easily adjusting the viscosity of the ink within the above range and enabling the formation of high-density images, it is preferably 1.5 to 15% by mass of the ink. If the content of the dispersible colorant is 1.5% by mass or more, it is easy to form high-density images, and if it is 15% by mass or less, the viscosity of the ink does not become too high, so ejection stability is less likely to be impaired. From the same viewpoint, the content of the dispersible colorant is more preferably 5 to 15% by mass of the ink.

[0087] (2) Other ingredients The ink may further contain other components as necessary. Examples of other components may include solvents other than water, polymer dispersants, binder resins, preservatives, pH adjusters, etc. The solvents, preservatives, and pH adjusters may be the same as those used in the first post-treatment liquid, etc.

[0088] (polymer dispersant) If the pigment is not a self-dispersing pigment, the ink preferably further contains a polymer dispersant to facilitate dispersion of the pigment. The type of polymer dispersant is not particularly limited, and may be any of a cationic dispersant, an anionic dispersant, and a nonionic dispersant.

[0089] Examples of the cationic group contained in the cationic dispersant include a secondary amino group (imino group), a tertiary amino group, or a quaternary ammonium group. The cationic dispersant is not particularly limited as long as it can form a pigment dispersion, and examples include acrylic (co)polymers having a cationic group (tertiary amino group or quaternary ammonium group).

[0090] The anionic dispersant is a polymeric dispersant having a hydrophilic group selected from the group consisting of a carboxylic acid group, a phosphorus-containing group, and a sulfonic acid group. Examples of polymeric dispersants having a carboxylic acid group include polycarboxylic acids or salts thereof. Examples of polycarboxylic acids include (co)polymers of a monomer selected from acrylic acid or a derivative thereof, maleic acid or a derivative thereof, itaconic acid or a derivative thereof, and fumaric acid or a derivative thereof, and salts thereof. The polymeric dispersant having a phosphorus-containing group is a polymeric dispersant having a phosphoric acid group or a phosphonic acid group. Examples of the polymeric dispersant having a phosphoric acid group or a phosphonic acid group include alkyl phosphate esters or salts thereof. Examples of polymeric dispersants having sulfonic acid groups include formalin condensates of aromatic sulfonic acids and formalin condensates of lignin sulfonic acids, and preferably formalin condensates of aromatic sulfonic acids. Examples of formalin condensates of aromatic sulfonic acids include condensed sodium naphthalene sulfonate.

[0091] Examples of nonionic dispersants include polyoxyalkylenes, polyoxyalkylene alkyl ethers, and the like.

[0092] The content of the polymer dispersant is preferably 10 to 50% by mass relative to the dispersible colorant. If the content of the polymer dispersant is 10% by mass or more, the dispersibility of the dispersible colorant is easily increased sufficiently, and if it is 50% by mass or less, an excessive increase in viscosity is easily suppressed. From the same viewpoint, the content of the polymer dispersant is preferably 20 to 40% by mass relative to the dispersible colorant.

[0093] (binder resin) The binder resin can be a water-soluble resin or resin particles (water-dispersible resin). However, from the viewpoint of preventing deterioration of the texture of the fabric, it is preferable that the content ratio of the polymer dispersant and the binder resin (particularly the content ratio of the binder resin) is low. The content of the binder resin is preferably 5% by mass or less of the ink, and more preferably substantially no binder resin is contained.

[0094] (3) Physical properties The viscosity of the ink at 25°C is not particularly limited as long as it provides good ejection properties using an inkjet system, but is preferably 3 to 20 mPa·s, and more preferably 4 to 12 mPa·s. The viscosity of the ink can be measured at 25°C using an E-type viscometer.

[0095] The ink can be produced by any method, for example, by mixing the dispersible colorant, water, any dispersant, and the like.

[0096] 3. Image formation An image-formed product obtained by the image forming method according to one embodiment of the present invention may have a fabric, a colorant layer, a first treatment layer, and a second treatment layer in this order.

[0097] (color material layer) The colorant layer is a layer formed by ink, and contains a dispersible colorant, a polymer dispersant, and / or a binder resin. The composition of the colorant layer is the same as the composition of the solid content of the ink.

[0098] (First treatment layer) The first treatment layer is a layer formed by the first post-treatment liquid and originates from the coating film. The first treatment layer can be disposed on the colorant layer (or fabric).

[0099] The content of the water-swellable resin (A) in the first treatment layer is preferably 80% by mass or more, and more preferably 90 to 100% by mass, relative to the first treatment layer. When the content of the water-swellable resin (A) is 80% by mass or more, for example, the protection and fixation of the colorant layer can be sufficiently improved.

[0100] The thickness t1 of the first treatment layer is preferably thicker than the thickness t2 of the second treatment layer, and is, for example, preferably 1 to 10 μm, more preferably 2 to 5 μm. When the thickness t1 of the first treatment layer is within the above range, the protection or fixation of the colorant layer can be improved, for example, to an extent that the texture is not impaired.

[0101] (Second treatment layer) The second treatment layer is a layer formed by reacting the coating of the first post-treatment liquid with the second post-treatment liquid, and is disposed on the first treatment layer.

[0102] That is, the second treatment layer contains a water-swellable resin (A) modified with a water-swelling inhibitor (B). The water-swellable resin (A) modified with the water-swelling inhibitor (B) has a lower degree of water swelling than the unmodified water-swellable resin (A).

[0103] The content of the water swelling inhibitor (B) in the second treatment layer varies depending on the type, but is preferably 0.1 to 10% by mass, and more preferably 1 to 5% by mass, of the second treatment layer. When the content of the water swelling inhibitor (B) is within the above range, the image-formed product does not become too hard, and the texture is less likely to be impaired.

[0104] The thickness t2 of the second treatment layer is preferably thinner than the thickness t1 of the first treatment layer, and is preferably, for example, 5 μm or less, and more preferably 0.2 to 1 μm. The ratio of the thickness t1 of the first treatment layer to the thickness t2 of the second treatment layer, t2 / t1, can be, for example, 0.01 to 1, preferably 0.01 to 0.5. When t2 or t2 / t1 is within the above range, the second treatment layer can easily improve wet rub fastness without impairing the texture.

[0105] The thickness t1 of the first treatment layer and the thickness t2 of the second treatment layer can be measured by cutting the entire fabric in the thickness direction and observing it with an electron microscope. in particular, 1) For the image-formed product, samples are taken at both ends and the center of the sample in the main scanning direction (for example, at three evenly spaced positions), and at three points (total of nine points) at equal intervals (for example, 5 cm intervals) in the sub-scanning direction. 2) Next, each sample is cut in a direction parallel to the main scanning direction, and the thickness of the first treatment layer on the cut surface is measured, for example, at 10 points in the electron microscope image (total of 90 points), and the average value of these measurements is defined as the "thickness of the first treatment layer." Note that the main scanning direction is usually the width direction of the image-formed product (or fabric). When the water-swelling inhibitor (B) in the second post-treatment liquid is a resin, the interface between the first and second treatment layers can be confirmed by observing the difference in color between the first and second treatment layers in a cross-sectional image taken with an electron microscope. When the water-swelling inhibitor (B) is not a resin, the interface can also be confirmed by further using elemental analysis (such as EDX).

[0106] The ratio of the adhesion amount x of the water-swellable resin (A) to the adhesion amount y of the water-swelling inhibitor (B) in the image-formed product is the same as the mass ratio y / x. The adhesion amount x of the water-swellable resin (A) to the adhesion amount y of the water-swelling inhibitor (B) in the image-formed product may be calculated from the thickness, or may be confirmed by known methods such as elemental analysis such as ICP, IR, and pyrolysis gas chromatography (pyrolysis GC).

[0107] In the above embodiment, an example in which the first and second post-treatment liquids are applied onto a colorant layer is shown, but this is not limiting. For example, the first and second post-treatment liquids may be applied directly onto a fabric that does not have a colorant layer. In this case, the first post-treatment liquid may contain a colorant (i.e., the first post-treatment liquid may also serve as ink). In this case, the resulting image-formed product may not have a colorant layer between the fabric and the first treatment layer. [Example]

[0108] The present invention will be specifically explained below with reference to examples, but the present invention is not limited to these examples.

[0109] <Preparation of pretreatment solution> 3% by mass of calcium chloride, appropriate amounts of a preservative, an activator, and a pH adjuster were added, and the solution was adjusted to 100% by mass with water to prepare a pretreatment liquid.

[0110] <Ink Preparation> An ink was prepared by adding 3% by mass of the phosphoric acid self-dispersing pigment PR122, 10% by mass of glycerin, 25% by mass of ethylene glycol, appropriate amounts of preservative, activator, and pH adjuster, and adjusting the amount to 100% by mass with water.

[0111] 1. Preparation of the first and second post-treatment solutions <Material> (Water-swellable resin (A)) High-swelling acrylic resin (BASF Joncryl PDX-7326, anionic styrene-acrylic emulsion, water swelling rate 76%, acid value 38 mg KOH / g) Highly swellable urethane resin (Mitsui Chemicals Takelac W-6061, anionic urethane resin emulsion, water swelling rate 88%) (Water swelling inhibitor (B)) Cationic acrylic resin (Viniblan 2687, cationic polyacrylate emulsion, manufactured by Nissin Chemical Industry Co., Ltd.) Cationic acrylic resin (Himoc E-395, cationized polyacrylamide, manufactured by Hymo Corporation) Low-swelling acrylic resin (BASF Joncryl PDX-7357, 10% water swelling, styrene acrylic polymer emulsion) The water swelling degree of the resin was measured by the method described below.

[0112] (For comparison) Superflex 500M (non-ionic urethane resin emulsion) Superflex 150 (anionic, urethane resin emulsion)

[0113] (preservatives) Lonza Proxcel GXL(S)

[0114] <Preparation of first post-treatment solution> The components were mixed in the composition ratios (mass ratios) shown in Table 1 to prepare post-treatment liquids 1-1 to 1-3 (Examples) and post-treatment liquid 1-4 (Comparative Example).

[0115] [Table 1]

[0116] <Preparation of second post-treatment solution> The components were mixed in the composition ratios (mass ratios) shown in Table 2 to prepare post-treatment solutions 2-1, 2-2, 2-4 and 2-5 (Examples) and post-treatment solutions 2-3 and 2-6 (Comparative).

[0117] [Table 2]

[0118] 2. Imaging and Evaluation <Test 1> The prepared pre-treatment liquid, ink, post-treatment liquid 1-1 (first post-treatment liquid), and post-treatment liquid 2-1 (second post-treatment liquid) were set in a simple printing tester equipped with a KM1024i head as an inkjet head.

[0119] (1) Pretreatment Cotton broadcloth 40 (100% cotton) was prepared as a fabric. The pretreatment liquid prepared above was applied to the surface of this fabric in an amount of 15 g / m 2 The ink was applied by ink jet method using a simple printing tester so that the ink was applied to a surface of the fabric, and then the fabric was dried at 110° C. for 2 minutes, thereby obtaining a pretreated fabric.

[0120] (2) Ink application, drying and fixation Next, the prepared ink was ejected onto the obtained pretreated fabric from the nozzles of an inkjet head of a simple printing tester to form a 200 mm x 200 mm 100% solid image. Specifically, an image (total 200 mm x 200 mm) including a fine line grid, gradation, and solid areas was formed at 540 dpi in the main scan direction and 720 dpi in the sub-scan direction. dpi represents the number of ink droplets (dots) per 2.54 cm. The ejection frequency was 22.4 kHz. The ink deposition amount was 15 g / m. 2 The discharge rate was adjusted so that

[0121] (3) Post-treatment (application of first post-treatment liquid) Next, post-treatment liquid 1-1 (first post-treatment liquid) was applied onto the image formed on the fabric under the same conditions as for the ink, and dried at 150°C for 3 minutes. At this time, the amount of post-treatment liquid 1-1 applied was 15 g / m 2 The amount of post-treatment liquid 1-1 applied was adjusted by adjusting the voltage.

[0122] (4) Post-treatment (application of second post-treatment liquid) Furthermore, post-treatment liquid 2-1 (second post-treatment liquid) was applied onto the image on the printed fabric under the same conditions as for the ink to print a 100% solid image, and then dried for 3 minutes at 150° C. During this process, the amount of post-treatment liquid 2-1 ejected was adjusted by adjusting the ejection voltage.

[0123] <Tests 2-16 and 22> Except for changing the combination of the first and second post-treatment liquids as shown in Table 3, the same procedure as in Test 1 was carried out to obtain an image-formed product.

[0124] <Tests 17-21> An image was obtained in the same manner as in Test 1, except that the first post-treatment liquid was changed as shown in Table 3 and the second post-treatment liquid was not used.

[0125] <Evaluation> The texture and wet rubbing fastness of the obtained image-formed product were evaluated by the following methods. Furthermore, the yellowing of the white background and the degree of swelling in water were also evaluated when the first and second post-treatment liquids shown in Table 3 were used in combination.

[0126] (Texture) The obtained image-formed product was evaluated according to the following criteria using the bending stress B value calculated using a pure bending tester (KES-FB2-A) manufactured by Kato Tech as an index. 5: The B value is less than 1.5 times that before post-treatment, and no change in texture is noticeable even in sensory evaluation. 4: The B value is less than 1.5 times that before post-treatment, and the change in texture is slightly noticeable in sensory evaluation, but is not a problem. 3: The B value is 1.5 times or more but less than 2 times that before post-treatment, and the change in texture is slightly noticeable in sensory evaluation, but is not a problem 2: The B value is between two and three times higher than before post-treatment, and the texture is problematic even in sensory evaluation. 1: The B value is three times or more higher than before post-treatment, and the texture is problematic even in sensory evaluation.

[0127] (Wet rubbing fastness) The wet rubbing fastness of the obtained image-formed product was evaluated using a crock meter (rubbing tester type I) in accordance with JIS L 0849. Specifically, an image of the surface of the image-formed product was captured with a scanner, and the image was processed to quantify the staining level of the white cloth, which was then evaluated according to the following criteria. 5: Compared to when no post-treatment is used, contamination of white cloth is reduced by more than 90%. 4: Compared to when no post-treatment is used, contamination of white cloth is reduced by 60% to 90% 3: Compared to when no post-treatment is used, contamination of white fabric is reduced by 30% to 60% 2: Compared to when no post-treatment is used, contamination of white fabric is reduced by 10% to 30% 1: Compared to no post-treatment, the contamination of white fabrics is reduced by less than 10%.

[0128] (yellowing of white background) The first post-treatment liquid shown in Table 3 was applied to an untreated fabric in an amount of 15 g / m 2 After that, the second post-treatment liquid shown in Table 3 was applied in an amount of 15 g / m2 to the substrate, and then dried at 110°C for 30 seconds. 2 The resulting fabric was hot-pressed at 200° C. for 15 seconds. The degree of yellowing of the white background was then visually evaluated and rated according to the following criteria. 5: No yellowing occurs 4: Almost no yellowing, no problem 3: There is some slight yellowing in some areas, but it is not a problem 2: Slight yellowing, causing practical problems 1: Yellowing occurs and is problematic for practical use

[0129] (Water swelling degree of water-swellable resin (A) after treatment with second post-treatment liquid) 1) An aqueous dispersion of water-swellable resin (A), which is a raw material for the first post-treatment liquid, was dried and solidified at 70°C and 30 to 35% RH for 48 hours to obtain pellets 1 (before treatment). 2) Pellet 1 was immersed for 5 minutes in a second post-treatment liquid diluted so that the mass ratio with the water swelling inhibitor (B) matched y / x in Table 3, and then dried and solidified under the same conditions as above to obtain pellet 2 (after treatment). 3) Each of the obtained pellets 1 and 2 was immersed in ion-exchanged water at 20°C for 5 minutes, then dried under the same conditions as above and weighed. The water swelling degree (%) of each of pellets 1 and 2 was calculated by applying the weights before and after immersion in ion-exchanged water to the following formula: Formula (1): Water swelling degree (%) = (pellet weight after immersion - pellet weight before immersion) / (pellet weight before immersion) × 100 The water swelling degree of pellet 1 corresponds to the water swelling degree of the water-swellable resin (A) (before treatment with the second post-treatment liquid); and the water swelling degree of pellet 2 corresponds to the water swelling degree of the water-swellable resin (A) (after treatment with the second post-treatment liquid).

[0130] The evaluation results of Tests 1 to 22 are shown in Table 3. When the cross section of the image-formed product of Test 11 was observed, it was confirmed that the thickness of the first treatment layer was 3.5 μm and the thickness of the second treatment layer was about 1 μm.

[0131] [Table 3]

[0132] As shown in Table 3, the image formations (invention) of Tests 1 to 16, which used both the specified first and second post-treatment liquids, all had good wet rub fastness without impairing the texture, and showed little yellowing of the white background.

[0133] In contrast, Tests 17 to 21, which did not use the second post-treatment liquid, all showed poor wet rub fastness. Also, Test 22 showed that the nonionic urethane resin contained in Treatment Liquid 1-4 did not react or interact with the anionic urethane resin contained in Treatment Liquid 2-6, and therefore the resulting image-formed product not only had poor texture but also poor wet rub fastness.

[0134] According to the present invention, it is possible to provide an image forming method capable of imparting an image-formed product having sufficient water resistance (wet rub fastness) without impairing the texture of the fabric.

Claims

1. a step of applying a first post-treatment liquid containing 2% by mass or more of a water-swellable resin (A) and water onto a fabric to form a coating film; applying a second post-treatment liquid containing a water-swelling inhibitor (B) and water to the surface of the coating film; Including, On the surface of the coating film, the water-swelling inhibitor (B) reacts or interacts with the water-swellable resin (A) to reduce the water swelling degree of the water-swellable resin (A). Image forming method.

2. A colorant layer is formed on the surface of the fabric, the first post-treatment liquid is applied onto the colorant layer; The image forming method according to claim 1 .

3. The colorant layer contains a pigment. The image forming method according to claim 2 .

4. The water-swellable resin (A) is a resin having a water swelling degree of 70% or more, as represented by the following formula (1): The image forming method according to any one of claims 1 to 3. Formula (1): Water swelling degree (%) = (pellet weight after immersion - pellet weight before immersion) / (pellet weight before immersion) x 100 (In formula (1), The pellet weight before immersion refers to the weight of the pellet of the water-swellable resin (A) before immersion in ion-exchanged water at 20°C, The pellet weight after immersion indicates the weight of the pellet of the water-swellable resin (A) after immersion in ion-exchanged water at 20°C for 5 minutes.

5. The water-swellable resin (A) has an ionic group, The water swelling inhibitor (B) has an ionic group that forms a pair with the ionic group. The image forming method according to any one of claims 1 to 4.

6. The water-swellable resin (A) has an anionic group, The water swelling inhibitor (B) has a cationic group. The image forming method according to claim 5 .

7. The water-swellable resin (A) is a (meth)acrylic resin having an anionic group. The image forming method according to claim 6.

8. The water swelling inhibitor (B) is at least one selected from the group consisting of a (meth)acrylic resin having a cationic group, a polyvalent metal salt, and an organic acid. The image forming method according to claim 6 or 7.

9. The mass ratio y / x of the adhesion amount x of the water-swellable resin (A) to the adhesion amount y of the water-swelling inhibitor (B) is 0.01 or more and less than 1. The image forming method according to any one of claims 1 to 8.

10. Fabric and a first treatment layer containing a water-swellable resin (A); a second treatment layer containing a water-swellable resin (A) whose degree of swelling in water has been reduced by reaction or interaction with a water-swelling inhibitor (B); in this order, Image formation.

11. further comprising a colorant layer disposed between the fabric and the first treatment layer; The image-formed product according to claim 10.

12. The colorant layer contains a pigment. The image-formed product according to claim 11.

13. The mass ratio y / x of the adhesion amount x of the water-swellable resin (A) to the adhesion amount y of the water-swelling inhibitor (B) is 0.01 or more and less than 1. The image-formed product according to any one of claims 10 to 12.

14. A treatment liquid set for use in inkjet textile printing, comprising: a first post-treatment liquid containing 2% by mass or more of a water-swellable resin (A) and water; a second post-treatment liquid containing a water-swelling inhibitor (B) that reacts or interacts with the water-swelling resin (A) to reduce the water swelling degree of the water-swelling resin (A), and water; Including, Processing solution set.

15. The water-swellable resin (A) is a resin having a water swelling degree of 70% or more, as represented by the following formula (1): The treatment liquid set according to claim 14. Formula (1): Water swelling degree (%) = (pellet weight after immersion - pellet weight before immersion) / (pellet weight before immersion) x 100 (In formula (1), The pellet weight before immersion refers to the weight of the pellet of the water-swellable resin (A) before immersion in ion-exchanged water at 20°C, The pellet weight after immersion indicates the weight of the pellet of the water-swellable resin (A) after immersion in ion-exchanged water at 20°C for 5 minutes.

16. The water-swellable resin (A) has an ionic group, The water swelling inhibitor (B) has an ionic group that forms a pair with the ionic group. The treatment liquid set according to claim 14 or 15.

17. The water-swellable resin (A) has an anionic group, The water swelling inhibitor (B) has a cationic group. The treatment liquid set according to claim 16.

18. The water-swellable resin (A) is a (meth)acrylic resin having an anionic group. The treatment liquid set according to claim 17.

19. The water swelling inhibitor (B) is at least one selected from the group consisting of a (meth)acrylic resin having a cationic group, a polyvalent metal salt, and an organic acid. The treatment liquid set according to claim 17 or 18.

Images