Dye printing treatment liquid composition, composition set, printing method, and ink-jet printing method

Abstract

To obtain a printed matter having excellent friction fastness, washing fastness, and color development as well as a good feeling, through adhering a treatment liquid composition to fabric in advance and printing onto the fabric with the treatment liquid composition adhered thereon.SOLUTION: A treatment liquid composition for dye-printing is to be used through adhering onto fabric, and includes: a polyester resin; a tertiary amine; an isocyanate group-containing compound as a cross-linking agent; and water. A content of the tertiary amine is 1 to 5 mass% with regard to a total amount of the treatment liquid composition.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a dye printing treatment liquid composition, a composition set, a printing method, and an ink-jet printing method. [Background technology]

[0002] Conventionally, when producing a printed textile by dyeing a fabric with a colorant, a technique of pretreating the fabric with a treatment liquid to improve the color development and fastness of the colorant has been known. For example, Patent Document 1 discloses a technique of applying a pretreatment liquid consisting of an aqueous composition to a polyester fabric. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-249773 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the pretreatment liquid of Patent Document 1 has the problem that it is difficult to obtain a printed item having excellent rub fastness, wash fastness, and color development. In fact, Patent Document 1 is a technology for polyester fabrics and does not describe printing on natural fiber fabrics. Unlike natural fiber fabrics, polyester fabrics can be printed using dyes without using a pretreatment liquid. [Means for solving the problem]

[0005] The present invention provides a treatment liquid composition for dye printing that is to be applied to a fabric, the treatment liquid composition comprising a polyester resin, a tertiary amine, an isocyanate group-containing compound serving as a crosslinking agent, and water, wherein the content of the tertiary amine is 1% by mass or more and 5% by mass or less relative to the total amount of the treatment liquid composition. [Brief explanation of the drawings]

[0006] [Figure 1] 3 is a flowchart illustrating an example of an indirect textile printing method according to the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0007] Below, we will explain in detail the embodiment of the present invention (hereinafter referred to as the ``present embodiment''), but the present invention is not limited to this and various modifications are possible within the scope of the gist of the present invention.

[0008] 1. Dye printing treatment liquid composition The dye printing treatment liquid composition of this embodiment (hereinafter also referred to as "treatment liquid composition") is a treatment liquid composition to be applied to fabric, and contains a polyester resin, a tertiary amine, an isocyanate group-containing compound as a crosslinking agent, and water, with the tertiary amine content being 1% by mass or more and 5% by mass or less relative to the total amount of the treatment liquid composition. The treatment liquid composition is preferably used to be applied to fabric before dye printing.

[0009] According to the present embodiment, the treatment liquid composition is applied to a fabric in advance, and then the fabric to which the treatment liquid composition has been applied is subjected to dye printing, thereby making it possible to obtain a printed textile having excellent abrasion fastness, washing fastness, and color development.

[0010] Although the reason why such excellent effects are obtained by this embodiment is not clear, the inventors presume as follows. That is, inks containing disperse dyes or the like typically used in textile printing have low affinity for fabrics containing fibers such as cotton, making dye printing difficult. On the other hand, inks containing disperse dyes or the like easily dye polyester resins due to non-covalent bonds such as hydrogen bonds with carboxy groups, π-π interactions with hydrophobic moieties such as phenyl groups, and van der Waals forces in the polyester resin structure. Furthermore, polyester resins have high affinity for fabrics containing fibers, and therefore can be present on the fabric. Therefore, by attaching polyester resins to fabrics using a treatment liquid composition, it is possible to impart the dyeability of inks containing disperse dyes or the like to fabrics containing fibers such as cotton.

[0011] However, the polyester resin is only attached to the fabric and is not bound to the fabric. Therefore, the binding between the polyester resin and the fabric is insufficient, and the resulting printed textile tends to have poor friction resistance and washing fastness. In this regard, it is conceivable to attach a large amount of polyester resin to the fabric in order to obtain friction resistance and washing fastness. However, when a large amount of polyester resin is attached, a large amount of ink is also attached, and therefore a coating film derived from the ink is formed on the fabric, which tends to impair the texture of the printed textile.

[0012] On the other hand, the treatment liquid composition of this embodiment contains a polyester resin, an isocyanate group-containing compound as a crosslinking agent, and a specific amount of a tertiary amine. Compared to primary and secondary amines, the tertiary amine can moderately promote the reaction between the isocyanate group-containing compound, the polyester resin, and the fabric, resulting in binding. This allows for favorable binding between the polyester resin and the fabric, resulting in a printed textile that has excellent texture while also exhibiting excellent resistance to friction and washing. Furthermore, because the polyester resin is easily dyed, it is believed that the printed textile also exhibits good color development. However, the reason for this is not limited to this.

[0013] Next, the components contained in the treatment liquid composition will be described, with the fabric being described later.

[0014] 1.1.Polyester resin The treatment liquid composition contains a polyester resin. When the treatment liquid composition contains a polyester resin, it is possible to obtain a printed textile having excellent abrasion fastness, washing fastness, and color development, as well as good texture.

[0015] The polyester resin has, for example, a structural unit derived from a polycarboxylic acid and a structural unit derived from a polyhydric alcohol.

[0016] Examples of polycarboxylic acids include terephthalic acid, isophthalic acid, orthophthalic acid, phthalic acid, 4,4'-diphenyldicarboxylic acid, 2,5-naphthalenedicarboxylic acid, 1,5-naphthalenedicarboxylic acid, 2,6-naphthalenedicarboxylic acid, 2,7-naphthalenedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, 2-potassium sulfoterephthalic acid, 5-sodium sulfoisophthalic acid, adipic acid, azelaic acid, sebacic acid, dodecanedicarboxylic acid, glutaric acid, succinic acid, trimellitic acid, trimesic acid, pyromellitic acid, trimellitic anhydride, phthalic anhydride, succinic anhydride, and p-hydroxybenzoic acid, as well as salts thereof. Examples of salts include potassium salts, sodium salts, calcium salts, and magnesium salts.

[0017] Examples of polyhydric alcohols include ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,3-propanediol, 1,3-butylene glycol, 1,4-butanediol, 1,6-hexanediol, 2-methyl-1,5-pentanediol, neopentyl glycol, 1,4-cyclohexanedimethanol, p-xylylene glycol, bisphenol A-ethylene glycol adduct, diethylene glycol, triethylene glycol, polyethylene glycol, polypropylene glycol, polytetramethylene glycol, polytetramethylene oxide glycol, dimethylolpropionic acid, glycerin, trimethylolpropane, sodium dimethylolethylsulfonate, potassium dimethylolethylsulfonate, and potassium dimethylolpropionate.

[0018] The polyester resin preferably contains a hydroxyl group, a carboxyl group, a sulfonic acid group, and sodium salts thereof. The polyester resin may contain one or more of these groups.

[0019] The sulfonic acid group-containing polyester resin has, for example, a structural unit derived from a polycarboxylic acid, a structural unit derived from a polyhydric alcohol, and a structural unit derived from a sulfonic acid group-containing aromatic monomer. Examples of sulfonic acid group-containing aromatic monomers include 5-sulfoisophthalic acid, sulfoterephthalic acid, 4-sulfophthalic acid, 4-sulfonaphthalene-2,7-dicarboxylic acid, and 4-sulfo-1,8-naphthalenedicarboxylic anhydride, as well as salts thereof. As for the salts, the above may be referred to, and sodium salts are preferred.

[0020] The polyester resin containing these groups allows the polyester resin to react well with the following isocyanate group-containing compound, improving the binding property with fabrics, preferably fabrics containing fibers having hydroxyl groups, and thus making it possible to obtain printed textiles with better texture as well as better friction fastness, washing fastness, and color development.

[0021] In order to obtain a printed product having excellent texture as well as excellent abrasion fastness, washing fastness, and color development, it is preferable that the polyester resin contains a hydrophobic moiety such as an aromatic group in its structure.

[0022] The polyester resin can be obtained by, for example, appropriately selecting one or more of the above-mentioned polycarboxylic acids, polyhydric alcohols, and, if necessary, sulfonic acid group-containing aromatic monomers, and synthesizing the selected one or more of the selected polycarboxylic acids, polyhydric alcohols, and, if necessary, sulfonic acid group-containing aromatic monomers, through a conventional polycondensation reaction.

[0023] Commercially available polyester resins may also be used, including, for example, Eliteal (registered trademark) KA-5071S, KT-8803, KT-9204, KT-8701, KT-8904, and KT-0507 (all trade names, Unitika Ltd., polyester resin emulsions); Hitec (registered trademark) SN-2002 (trade name, Toho Chemical Industry Co., Ltd., polyester resin emulsion); and Pluscoat (registered trademark). Examples of suitable acrylic resins include (trade names) Z-221, Z-446, Z-561, Z-565, RZ-570, Z-592, Z-687, Z-690, Z-730, Z-760, RZ-105, RZ-570, and RZ-760 (all of which are trade names, manufactured by GOO Chemical Industry Co., Ltd.); and Vylonal (registered trademark) MD-1200, MD-1500, and MD-2000 (all of which are trade names, manufactured by Toyobo Co., Ltd.).

[0024] The polyester resin may be used alone or in combination of two or more kinds.

[0025] In order to obtain a printed textile having better texture as well as more excellent rubbing fastness, washing fastness, and color development, the content of the polyester resin is preferably 2% by mass or more and 20% by mass or less, calculated as solids, relative to the total amount of the treatment liquid composition.In order to obtain a printed textile having better texture as well as more excellent rubbing fastness, washing fastness, and color development, the content of the polyester resin is more preferably 2% by mass or more and 15% by mass or less, and even more preferably 2% by mass or more and 10% by mass or less, calculated as solids, relative to the total amount of the treatment liquid composition.

[0026] In order to obtain a printed textile having even better texture as well as more excellent rubbing fastness, washing fastness, and color development, the total content of the polyester resin and the isocyanate group-containing compound described below is preferably from 3 to 23% by mass, and more preferably from 3 to 15% by mass, converted into solids, relative to the total amount of the treatment liquid composition.In order to obtain a printed textile having even better texture as well as more excellent rubbing fastness, washing fastness, and color development, the total content of the polyester resin and the isocyanate group-containing compound described below is even more preferably from 3 to 10% by mass, converted into solids, relative to the total amount of the treatment liquid composition.

[0027] 1.2.Tertiary amines The treatment liquid composition contains a tertiary amine, and the content of the tertiary amine is 1% by mass or more and 5% by mass or less relative to the total amount of the treatment liquid composition.

[0028] By using a specific amount of a tertiary amine in the treatment liquid composition together with a polyester resin and an isocyanate group-containing compound, it is possible to obtain printed textiles that have excellent friction fastness, washing fastness, and color development, as well as good texture.

[0029] The tertiary amine preferably has a hydroxyl group, since this provides the treatment liquid composition with superior storage stability and prints with better texture, as well as superior rub fastness, wash fastness, and color development. When a tertiary amine having a hydroxyl group is used, the curing reaction between the polyester resin and the isocyanate group-containing compound in the treatment liquid composition proceeds relatively slowly, and the treatment liquid composition tends to have excellent storage stability.

[0030] A tertiary amine preferably has a standard boiling point of 340°C or lower, since this allows for a printed fabric to have better texture as well as better rub fastness, washing fastness, and color development. Using a tertiary amine with a standard boiling point of 340°C or lower tends to reduce the likelihood of the tertiary amine remaining in the printed fabric, thereby tending to provide even better rub fastness. Since this reduces the likelihood of the tertiary amine remaining in the printed fabric, even better rub fastness is obtained, and a printed fabric having better texture as well as better washing fastness and color development is obtained, the upper limit of the standard boiling point is more preferably 300°C or lower, even more preferably 200°C or lower, and even more preferably 100°C or lower. The lower limit of the standard boiling point is preferably 50°C or higher, since this allows for a printed fabric having better texture as well as better rub fastness, washing fastness, and color development. In this specification, the standard boiling point refers to the boiling point at 1 atmosphere.

[0031] The tertiary amine is preferably a compound represented by formula (1), since it provides a printed material having better texture as well as better rub fastness, wash fastness and color development. R 1 -N(R 2 )-R 3 ···(1) In formula (1), R 1 , R 2 , and R 3R each independently represents a linear or branched alkyl group having 1 to 10 carbon atoms, a linear or branched hydroxyalkyl group having 1 to 10 carbon atoms, or a linear or branched alkoxy group having 1 to 10 carbon atoms. 1 , R 2 , and R 3 may have a substituent such as a halogen atom within a range that does not impair the effects of the present invention.

[0032] Since printed textiles having even better texture as well as even more excellent rubbing fastness, washing fastness, and color development can be obtained, the linear or branched alkyl group having from 1 to 10 carbon atoms is preferably a linear or branched alkyl group having from 1 to 6 carbon atoms, and more preferably a linear or branched alkyl group having from 1 to 4 carbon atoms. Examples of such alkyl groups include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a t-butyl group, an n-pentyl group, a neopentyl group, an n-hexyl group, an n-heptyl group, an n-octyl group, an n-ethylhexyl group, an n-nonyl group, and an n-decyl group.

[0033] As the linear or branched hydroxyalkyl group having from 1 to 10 carbon atoms, a linear or branched hydroxyalkyl group having from 1 to 6 carbon atoms is preferred, and a linear or branched hydroxyalkyl group having from 1 to 4 carbon atoms is more preferred, since this allows for the production of printed textiles having even better texture as well as more excellent rubbing fastness, washing fastness, and color development. Examples of such hydroxyalkyl groups include a hydroxymethyl group, a hydroxyethyl group, a hydroxypropyl group, a hydroxybutyl group, a hydroxypentyl group, a hydroxyhexyl group, a hydroxyheptyl group, a hydroxyoctyl group, a hydroxybutyl group, a hydroxypentyl group, a hydroxyhexyl group, a hydroxyheptyl group, and a hydroxyoctyl group.

[0034] Since printed textiles having even better texture as well as even better rubbing fastness, washing fastness, and color development can be obtained, the linear or branched alkoxy group having from 1 to 10 carbon atoms is preferably a linear or branched alkoxy group having from 1 to 6 carbon atoms, and more preferably a linear or branched alkoxy group having from 1 to 4 carbon atoms. Examples of such alkoxy groups include a methoxy group, an ethoxy group, a propoxy group, an isopropoxy group, an n-butoxy group, an isobutoxy group, a tert-butoxy group, an n-hexanoxy group, and a 2-methylpropoxy group.

[0035] Examples of the compound represented by formula (1) include trialkylamines such as trimethylamine, triethylamine, tri-n-butylamine, diisopropylethylamine, diethyl-n-butylamine, methyldi-n-butylamine, and methylethyl-n-butylamine; N,N-dialkylalkanolamines such as N,N-dimethylethanolamine, N,N-diethylethanolamine, N,N-dipropylethanolamine, and N,N-dibutylethanolamine; N-alkyldialkanolamines such as N-methyldiethanolamine, N-propyldiethanolamine, N-butyldiethanolamine, and N-methyldipropanolamine; and trialkanolamines such as triethanolamine, tripropanolamine, triisopropanolamine, and tributanolamine.

[0036] Since a printed material having even better texture can be obtained in addition to even better rubbing fastness, washing fastness, and color development, the compound represented by formula (1) is preferably one or more selected from the group consisting of trialkylamines and trialkanolamines, and more preferably one or more selected from the group consisting of triethanolamine, triisopropanolamine, and triethylamine.

[0037] The compound represented by formula (1) is preferably a trialkylamine, more preferably triethylamine. These tertiary amines are less likely to remain on the printed material, and the use of these tertiary amines tends to result in even better rub fastness.

[0038] The compound represented by formula (1) is preferably a trialkanolamine, and more preferably at least one selected from the group consisting of triethanolamine and triisopropanolamine. The use of such a tertiary amine makes it possible to more suitably suppress the curing reaction between the polyester resin and the isocyanate group-containing compound in the treatment liquid composition, and therefore tends to further improve the storage stability of the treatment liquid composition.

[0039] The tertiary amines may be used alone or in combination of two or more.

[0040] The content of the tertiary amine is preferably 1% by mass or more and 3% by mass or less relative to the total amount of the treatment liquid composition, since this results in a printed textile having better washing fastness, better rubbing fastness, color development, and good texture.

[0041] Since a printed textile having excellent texture as well as superior rubbing fastness, washing fastness, and color development can be obtained, the mass ratio of the tertiary amine to the content of the isocyanate group-containing compound described below is preferably 0.3 or more and 5 or less, and more preferably 1 or more and 5 or less.

[0042] 1.3.Crosslinking Agent The treatment liquid composition contains an isocyanate group-containing compound as a crosslinking agent. The treatment liquid composition contains an isocyanate group-containing compound together with a specific amount of a tertiary amine, which allows the isocyanate group-containing compound to appropriately crosslink with the polyester resin and the fabric, thereby enabling the polyester resin and the fabric to be suitably bonded together, thereby enabling the production of printed textiles that have excellent friction fastness, washing fastness, and color development, as well as good texture.

[0043] The isocyanate group-containing compound serving as the crosslinking agent can be appropriately selected from known crosslinking agents, and may be one that initiates a crosslinking reaction at room temperature or one that initiates a crosslinking reaction by heat. Examples of such compounds include crosslinking agents having self-crosslinking properties, compounds having multiple functional groups in the molecule that react with unsaturated carboxylic acid components, and metals having polyvalent coordination sites.

[0044] Examples of compounds containing an isocyanate group include water-dispersible (blocked) polyisocyanates, etc. The (blocked) polyisocyanates refer to polyisocyanates and / or blocked polyisocyanates.

[0045] Examples of water-dispersible polyisocyanates include those obtained by dispersing polyisocyanates, to which hydrophilicity has been imparted by polyethylene oxide chains, in water with an anionic dispersant or a nonionic dispersant.

[0046] Examples of polyisocyanates include diisocyanates such as hexamethylene diisocyanate and isophorone diisocyanate; and derivatives (modified products) of polyisocyanates such as trimethylolpropane adducts, biuret compounds, and isocyanurates of these diisocyanates. The polyisocyanate may have an isocyanurate skeleton in its structure. These polyisocyanates may be used alone or in combination of two or more.

[0047] The water-dispersible blocked polyisocyanate is obtained by blocking the isocyanate groups of the water-dispersible polyisocyanate with a blocking agent. Examples of the blocking agent include diethyl malonate, ethyl acetoacetate, ε-caprolactam, butanone oxime, cyclohexanone oxime, 1,2,4-triazole, dimethyl-1,2,4-triazole, 3,5-dimethylpyrazole, and imidazole. These blocking agents may be used alone or in combination of two or more.

[0048] The isocyanate group-containing compound preferably has an isocyanurate skeleton in its structure, and more preferably is a water-dispersible polyisocyanate having an isocyanurate skeleton in its structure. The isocyanate group-containing compound having an isocyanurate skeleton has at least three crosslinking points, and therefore tends to be able to more favorably bond the polyester resin to the fabric. Therefore, it tends to be possible to obtain printed textiles with better texture, as well as better abrasion fastness, washing fastness, and color development.

[0049] Commercially available isocyanate group-containing crosslinking agents include Fixer #100ECO, #104EA, #220, 70ECO, #70, #410, and #400 (all trade names, Murayama Chemical Laboratory Co., Ltd.) and Elastron (registered trademark) BN-11, BN-27, BN-69, and BN-77 (all trade names, Dai-ichi Kogyo Seiyaku Co., Ltd.).

[0050] The isocyanate group-containing compound may be used alone or in combination of two or more kinds.

[0051] Since a printed textile having better washing fastness, better rubbing fastness, and color development, as well as an even better texture, can be obtained, the content of the isocyanate group-containing compound is preferably 1% by mass or more and 3% by mass or less in terms of solid content relative to the total amount of the treatment liquid composition.

[0052] 1.4.Water The treatment liquid composition contains water. After the treatment liquid composition is applied to the fabric, the water evaporates and dissipates upon drying. Examples of water include pure water such as ion-exchanged water, ultrafiltered water, reverse osmosis water, and distilled water, as well as water from which ionic impurities have been removed as much as possible, such as ultrapure water. Water sterilized by ultraviolet irradiation or the addition of hydrogen peroxide is preferred because it can suppress the growth of mold and bacteria when the treatment liquid composition is stored for a long period of time.

[0053] The water content is from 30 to 98% by mass, preferably from 35 to 96% by mass, and more preferably from 40 to 94% by mass, based on the total amount of the treatment liquid composition. By keeping the water content within this range, an increase in the viscosity of the treatment liquid can be suppressed, improving the workability when applying the treatment liquid to fabric and the drying properties after application. The treatment liquid composition is preferably an aqueous treatment liquid composition, since this provides higher affinity and safety to fabrics, preferably fabrics containing fibers having hydroxyl groups. In this embodiment, "aqueous" refers to a composition in which the water content is 30% by mass or more relative to the total amount of the composition.

[0054] 1.5.Other Ingredients The treatment liquid composition may contain various additives such as surfactants, dissolution aids, viscosity adjusters, pH adjusters, antioxidants, preservatives, mildew inhibitors, corrosion inhibitors, and chelating agents. The additives may be used alone or in combination of two or more.

[0055] The content of each additive is, for example, 0.01% by mass or more and 5.0% by mass or less relative to the total amount of the treatment liquid composition.

[0056] 1.6. Method for preparing processing liquid composition The treatment liquid composition can be prepared by mixing the components in any order and, if necessary, performing filtration or the like to remove impurities, foreign matter, etc. The components can be mixed by sequentially adding the components to a container equipped with a stirring device such as a mechanical stirrer or a magnetic stirrer, followed by stirring and mixing. Examples of filtration methods include centrifugal filtration and filter filtration.

[0057] 1.7. Physical properties of processing liquid composition The physical properties of the treatment liquid composition can be adjusted as desired depending on the type of fabric and the method of adhering the composition to the fabric, i.e., the application method, etc. The application method of the treatment liquid composition will be described later.

[0058] 1.7.1.Viscosity The viscosity of the treatment liquid composition at 20° C. is preferably 1.5 mPa·s or more and 100 mPa·s or less. By setting the viscosity of the treatment liquid within this range, it is possible to improve the coatability, such as the ease with which the treatment liquid spreads when applied to a fabric. The viscosity of the treatment liquid composition is measured, for example, using a viscoelasticity tester MCR-300 (Pysica). Specifically, the temperature of the treatment liquid composition is adjusted to 20°C, and the viscosity can be measured by reading the shear viscosity (mPa s) at a shear rate of 200 (1 / s).

[0059] 1.7.2.Surface tension The surface tension of the treatment liquid composition at 25°C is preferably 30 mN / m or more and 50 mN / m or less. By setting the surface tension of the treatment liquid composition at 25°C within this range, the treatment liquid composition exhibits appropriate wettability and permeability to the fabric. Furthermore, since the treatment liquid composition is more easily absorbed uniformly into the fabric, it is possible to suppress variations in the amount of adhesion that occur when the treatment liquid composition is applied, i.e., the occurrence of uneven application. The surface tension of the treatment liquid composition can be measured, for example, using an automatic surface tensiometer CBVP-Z (Kyowa Interface Science Co., Ltd.) Specifically, the surface tension can be measured by wetting a platinum plate with the treatment liquid composition in an environment of 25°C.

[0060] 2. Inkjet ink composition The inkjet ink composition (hereinafter also referred to as "ink composition") is used to produce a printed textile by printing on a fabric to which the treatment liquid composition of this embodiment has been applied. Next, the ink composition will be described. The ink composition according to this embodiment contains a disperse dye and water.

[0061] 2.1. Disperse dye The ink composition contains a disperse dye as a dye because it provides excellent color development to fabrics to which the treatment liquid composition is applied. Disperse dyes are typically particulate colorants that are dispersed in a dispersion medium by a dispersant. Disperse dyes are typically nonionic dyes that have a hydrophilic group and a moderate polar group. Disperse dyes may be used alone or in combination of two or more.

[0062] Disperse dyes include, for example, CI Disperse Yellow, CI Disperse Red, CI Disperse Blue, CI Disperse Orange, CI Disperse Violet, CI Disperse Green, CI Disperse Brown, and CI Disperse Black.

[0063] Among them, sublimable dyes are preferred as dispersants. Here, the term "sublimable dye" refers to a dye that has the property of sublimating when heated. Specific examples of such sublimable dyes include CI Disperse Yellow 3, 7, 8, 23, 39, 51, 54, 60, 71, and 86; CI Disperse Orange 1, 1:1, 5, 20, 25, 25:1, 33, 56, and 76; CI Disperse Brown 2; CI Disperse Red 11, 50, 53, 55, 55:1, 59, 60, 65, 70, 75, 93, 146, 158, 190, 190:1, 20 7, 239, and 240; CI Vat Red 41; CI Disperse Violet 8, 17, 23, 27, 28, 29, 36, and 57; CI Disperse Blue 14, 19, 26, 26:1, 35, 55, 56, 58, 64, 64:1, 72, 72:1, 81, 81:1, 91, 95, 108, 131, 141, 145, and 359; CI Solvent Blue 36, 63, 105, and 111.

[0064] In this embodiment, cyan dyes, red dyes, and yellow dyes are preferred because they provide better dyeability to the fabric to which the treatment liquid composition is applied, resulting in a printed product with sufficient color development. CI Disperse Blue 359 is more preferred as the cyan dye because they provide even better dyeability and a printed product with sufficient color development. CI Disperse Red 60 is more preferred as the red dye. CI Disperse Yellow 54 is more preferred as the yellow dye.

[0065] In order to more effectively and reliably achieve the effects of this embodiment, the content of the coloring material is preferably 0.05% by mass or more and 20% by mass or less with respect to the total amount of the ink composition.

[0066] 2.2.Water The ink composition includes water. As for the water, reference can be made to the water contained in the above-mentioned treatment liquid composition, including the preferred embodiments.

[0067] In order to more effectively and reliably achieve the effects of this embodiment, the content of water is preferably 30% by mass or more and 80% by mass or less relative to the total amount of the ink composition.

[0068] 2.3.Dispersants The ink composition may include a dispersant. When an ink composition contains a dispersant, the dispersibility of the disperse dye is excellent and the clogging resistance of the ink composition is excellent. Examples of dispersants include sodium naphthalenesulfonate-formalin condensate and resin. Sodium naphthalenesulfonate-formalin condensate is a compound obtained by formalin condensation of a sulfonated compound having a naphthalene ring in the molecule, or a salt thereof. The dispersant may be used alone or in combination of two or more types.

[0069] The dispersant preferably contains a resin because it has better dispersibility. Examples of the resin include urethane-based resins, styrene-acrylic resins, acrylic resins, fluorene-based resins, polyolefin-based resins, rosin-modified resins, terpene-based resins, polyester-based resins, polyamide-based resins, epoxy-based resins, vinyl chloride-based resins, vinyl chloride-vinyl acetate copolymers, and ethylene-vinyl acetate-based resins. Among these, urethane-based resins and styrene-acrylic resins are preferred as the resin because of their excellent clogging resistance, and styrene-acrylic resins are more preferred.

[0070] The urethane resin is not particularly limited as long as it is a resin having a urethane bond in the molecule. Examples of the urethane resin include polyether-type urethane resins having an ether bond in the main chain in addition to the urethane bond, polyester-type urethane resins having an ester bond in the main chain, and polycarbonate-type urethane resins having a carbonate bond in the main chain. The urethane resins may be used alone or in combination of two or more.

[0071] As the urethane-based resin, commercially available products can also be used, such as Takelac (registered trademark) W6110 (trade name) manufactured by Mitsui Chemicals, Inc., Acrit (registered trademark) WBR-022U (trade name) manufactured by Taisei Fine Chemical Co., Ltd., Permarin (registered trademark) UX-368T (trade name), Euplen (registered trademark) UXA-307 (trade name), and U-Coat (registered trademark) UWS-145 (trade name) manufactured by Sanyo Chemical Industries, Ltd., and Solsverse (registered trademark) 47000 (trade name) manufactured by Lubrizol Corporation.

[0072] Examples of styrene-acrylic resins include styrene-acrylic acid copolymers, styrene-methacrylic acid copolymers, styrene-methacrylic acid-acrylate copolymers, styrene-α-methylstyrene-acrylic acid copolymers, and styrene-α-methylstyrene-acrylic acid-acrylate copolymers. These copolymers may be in the form of any of random copolymers, block copolymers, alternating copolymers, and graft copolymers.

[0073] As the styrene-acrylic resin, commercially available products can also be used, such as JONCRYL (registered trademark) 67 (product name) manufactured by BASF Japan Ltd. and SOLSVERSE (registered trademark) 43000 (product name) manufactured by Lubrizol Corporation.

[0074] In order to more effectively and reliably achieve the effects of this embodiment, the content of the dispersant is preferably 3.0% by mass or more and 8.0% by mass or less with respect to the total amount of the ink composition.

[0075] 2.4.Surfactants The ink composition may contain a surfactant. Examples of surfactants include acetylene glycol surfactants, fluorine surfactants, and silicone surfactants. The surfactants may be used alone or in combination of two or more.

[0076] Examples of acetylene glycol surfactants include 2,4,7,9-tetramethyl-5-decyne-4,7-diol and its alkylene oxide adduct, and 2,4-dimethyl-5-decyne-4-ol and its alkylene oxide adduct. Commercially available acetylene glycol surfactants can also be used, such as the Olfine (registered trademark) 104 series (trade name) and E series (trade name) manufactured by Nissin Chemical Industry Co., Ltd., and the Surfynol (registered trademark) series (trade name) manufactured by Air Products and Chemicals Inc.

[0077] Examples of fluorine-based surfactants include perfluoroalkyl sulfonates, perfluoroalkyl carboxylates, perfluoroalkyl phosphates, perfluoroalkyl ethylene oxide adducts, perfluoroalkyl betaines, and perfluoroalkyl amine oxide compounds. As the fluorine-based surfactant, commercially available products can also be used, such as S-144 (trade name) and S-145 (trade name) manufactured by Asahi Glass Co., Ltd.

[0078] Examples of silicone surfactants include polysiloxane compounds and polyether-modified organosiloxanes. As the silicone surfactant, commercially available products can also be used, such as BYK (registered trademark) series products 306, 307, 333, 341, 345, 346, 347, 348, and 349 (all trade names) manufactured by BYK Japan K.K.

[0079] In order to more effectively and reliably achieve the effects of this embodiment, the content of the surfactant is preferably 0.5% by mass or more and 5.0% by mass or less relative to the total amount of the ink composition.

[0080] 2.5. Water-soluble organic solvents The ink composition may contain a water-soluble organic solvent. Examples of the water-soluble organic solvent include glycerin; glycols such as ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, 1,3-propanediol, 1,2-butanediol, 1,2-pentanediol, 1,2-hexanediol, 1,4-butanediol, 1,5-pentanediol, and 1,6-hexanediol; ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, and propylene glycol monomethyl ether. glycol monoethers such as propylene glycol monoethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, and methyl triglycol; nitrogen-containing solvents such as 2-pyrrolidone, N-methyl-2-pyrrolidone, and N-ethyl-2-pyrrolidone; and alcohols such as methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butanol, 2-butanol, tert-butanol, iso-butanol, n-pentanol, 2-pentanol, 3-pentanol, and tert-pentanol. The water-soluble organic solvents may be used alone or in combination of two or more.

[0081] In order to more effectively and reliably achieve the effects of this embodiment, the content of the water-soluble organic solvent is preferably 5% by mass or more and 30% by mass or less relative to the total amount of the ink composition.

[0082] 2.6.Other Ingredients The ink composition may contain various additives such as dissolution aids, viscosity adjusters, pH adjusters, antioxidants, preservatives, mildew inhibitors, corrosion inhibitors, and chelating agents for capturing metal ions that affect dispersion. The additives may be used alone or in combination of two or more.

[0083] Preservatives include sodium pentachlorophenol, sodium 2-pyridinethiol-1-oxide, and 1,2-dibenzinethiazolin-3-one. Commercially available preservatives can also be used, such as CRL, BND, GXL, XL-2, and TN (all trade names) from the Proxel (registered trademark) series manufactured by Lonza Japan Co., Ltd. One type of preservative may be used alone, or two or more types may be used in combination.

[0084] The content of each additive is 0.01% by mass or more and 5.0% by mass or less relative to the total amount of the ink composition.

[0085] 2.7. Method for producing ink composition The ink composition can be prepared by mixing a disperse dye, water, and, if necessary, other components in any order, and removing impurities and foreign matter by filtration or the like as necessary. The components can be mixed by sequentially adding the components to a container equipped with a stirring device such as a mechanical stirrer or a magnetic stirrer, followed by stirring and mixing. Examples of filtration methods include centrifugal filtration and filter filtration.

[0086] In order to disperse the disperse dye in the ink composition more effectively, a dye dispersant may be prepared in advance and used in place of the disperse dye when preparing the ink composition. The dye dispersant can be obtained, for example, by mixing the disperse dye, water, and dispersant in any order and dispersing the mixture using a paint shaker or the like.

[0087] 3. Composition Set The composition set includes the treatment liquid composition and the ink composition.

[0088] In this embodiment, the treatment liquid composition is applied to a fabric in advance to obtain a fabric to which the treatment liquid composition is applied, and then the fabric to which the treatment liquid composition is applied is printed using an ink composition, thereby obtaining a printed textile that has excellent friction fastness, washing fastness, and color development, as well as a good texture.

[0089] 4.Fabric Examples of the fabric according to the present embodiment include natural fibers such as cotton, linen, wool, leather, and silk; synthetic fibers such as polypropylene, polyester, acetate, triacetate, polyamide, acrylic, and polyurethane; and biodegradable fibers such as polylactic acid. The fabric may also be a blend of these fibers.

[0090] The fabric preferably contains a fiber having hydroxyl groups, more preferably cotton, because this provides a printed product having better abrasion fastness, washing fastness, and color development, as well as good texture. The fiber having hydroxyl groups may also be a blend of these fibers.

[0091] Examples of the form of the fabric include woven fabrics, knitted fabrics, nonwoven fabrics, fabrics, as well as clothing and other accessories. Examples of clothing and other accessories include furniture such as sewn T-shirts, handkerchiefs, scarves, towels, carrier bags, cloth bags, curtains, sheets, bedspreads, and wallpaper; and fabrics before and after cutting as parts before sewing. Examples of the form of the fabric include long rolls, cut pieces to a predetermined size, and finished products. The fabric may be used as long as the treatment liquid composition is adhered to it, and fabrics to which the treatment liquid composition has been applied in advance may also be used.

[0092] The basis weight of the fabric is preferably, for example, 1.0 oz or more and 10.0 oz or less. If the basis weight of the fabric is in this range, good recording can be performed.

[0093] The fabric may be one that has been colored in advance with a dye. The treatment liquid composition is less likely to leave treatment marks, so it can be used even on pre-colored fabrics. In other words, even if the fabric is colored, it is possible to perform textile printing with reduced treatment marks, and this makes it possible to improve the quality and commercial value of the printed textile product compared to conventional methods.

[0094] Examples of dyes that can be used to pre-color a fabric include water-soluble dyes such as acid dyes and basic dyes, disperse dyes that are used in combination with dispersants, reactive dyes, solvent dyes, etc. When a cotton fabric is used as the fabric, it is preferable to use a disperse dye or reactive dye that is suitable for dyeing cotton, and a disperse dye is more preferable.

[0095] 5. Printing method The textile printing method of the present embodiment includes a treatment liquid composition applying step of applying the treatment liquid composition to a fabric. This step provides a fabric having the treatment liquid composition adhered thereto, and by applying an ink composition to this fabric, a printed textile having excellent rub fastness, wash fastness, and color development, as well as good texture, can be obtained.

[0096] The textile printing method preferably includes, after the treatment liquid composition application step, an ink composition application step in which an ink composition is applied to the fabric to which the treatment liquid composition has been applied. The ink composition applied to the fabric is not particularly limited as long as it contains a disperse dye, and for example, the inkjet ink composition according to this embodiment can be used. Furthermore, with regard to the ink composition application step, reference can be made to the textile printing method using the inkjet method described below. The printing method can be applied to various fabrics and can produce good printing.

[0097] The amount of the treatment liquid composition applied to the fabric is, for example, 0.02 g / cm 2 More than 0.5g / cm 2 It is preferable to apply it so that the density is less than 0.02 g / cm 2 More than 0.3g / cm 2By setting the amount of treatment liquid composition to be applied within the above range, the treatment liquid composition can be applied more uniformly to the fabric, aggregation unevenness of the image on the printed textile can be further suppressed, and color development can be improved.

[0098] Examples of methods for applying the treatment liquid composition to a fabric include a dip coating method in which the fabric is immersed in the treatment liquid composition, a roller coating method in which the treatment liquid composition is applied using a mangle roller, roll coater, or the like, a spray coating method in which the treatment liquid composition is sprayed using a spray device, or an inkjet coating method in which the treatment liquid composition is sprayed by an inkjet method. Of these application methods, the treatment liquid composition may be applied to the fabric using one method alone, or two or more methods may be combined to apply the treatment liquid composition to the fabric. In this embodiment, it is preferable to apply the treatment liquid composition to the fabric using a roller such as a mangle roller or a roll coater, because this increases the degree of freedom in designing the amount of treatment liquid composition to be applied, makes it less likely that problems will occur during application, and enables the treatment liquid composition to be applied uniformly to the fabric.

[0099] The textile printing method includes a drying step of drying the treatment liquid composition applied to the fabric after a treatment liquid composition application step of applying the treatment liquid composition to the fabric, and the drying temperature in the drying step is preferably a temperature equal to or higher than the normal boiling point of the tertiary amine contained in the treatment liquid composition. The treatment liquid composition may be dried by natural drying, but is preferably dried with heating, since this increases the amount of treatment liquid composition applied to the fabric and also increases the drying speed.

[0100] If the drying temperature is equal to or higher than the normal boiling point of the tertiary amine, the tertiary amine is less likely to remain in the printed fabric, which tends to result in a printed fabric with even better rub fastness. The drying temperature is, for example, preferably 300°C or lower, more preferably 200°C or lower. This can prevent the dye from sublimating due to heat drying, even if the fabric is pre-colored with a dye, and can prevent the fabric color from fading. The lower limit of the heating temperature is sufficient as long as the medium, such as water, contained in the treatment liquid composition is volatilized. For example, it is preferably 50°C or higher, more preferably 100°C or higher, and even more preferably 110°C or higher.

[0101] Examples of heating methods include heat pressing, atmospheric steam, high-pressure steam, and Thermofix, and examples of heat sources include infrared rays (lamp).

[0102] In the textile printing method, after the treatment liquid composition is applied to the fabric, a washing step may be included as necessary. By including this step in the textile printing method, components contained in the treatment liquid composition that are not applied to the fabric can be removed.

[0103] 6. Inkjet printing method The inkjet textile printing method is a method in which an ink composition is applied to a fabric to which a treatment liquid composition has been applied using an inkjet method. By employing the inkjet method, dyed portions of fine patterns can be easily and reliably formed. Furthermore, the method can be applied to various fabrics, and good printing can be achieved. The inkjet textile printing method can also be used to achieve good printing with little color difference between the front and back of thick fabrics. Examples of inkjet textile printing methods include an indirect textile printing method and a direct textile printing method.

[0104] 6.1. Inkjet recording device The inkjet recording device used in the textile printing method is not particularly limited as long as it has at least an ink container containing an ink composition and a recording head connected thereto, and is capable of ejecting the ink composition from the recording head to form an image on a fabric to which the treatment liquid composition has been applied, or on transfer paper as an intermediate transfer medium. Furthermore, either a serial type or a line type inkjet recording device can be used. These types of inkjet recording devices are equipped with a recording head, and while changing the relative positional relationship between the fabric or transfer paper and the recording head, droplets of the ink composition are ejected intermittently and in a predetermined volume from the nozzle holes of the recording head at a predetermined timing. This allows the ink composition to be applied to the fabric or transfer paper, forming a predetermined transfer image.

[0105] Generally, in a serial inkjet recording device, the direction of transport of the recording medium and the direction of reciprocating motion of the recording head intersect, and the relative positional relationship between the recording medium and the recording head is changed by combining the reciprocating motion of the recording head and the transport motion of the recording medium. In this case, the recording head generally has a plurality of nozzle holes arranged therein, and a row of the nozzle holes, i.e., a nozzle row, is formed along the direction of transport of the recording medium. In addition, the recording head may have a plurality of nozzle rows formed therein depending on the type and number of ink compositions.

[0106] Generally, in a line-type inkjet recording device, the recording head does not reciprocate, but changes the relative positional relationship between the recording medium and the recording head by conveying the recording medium. Even in this case, the recording head generally has a plurality of nozzle holes arranged therein, and a nozzle row is formed along a direction intersecting the conveying direction of the recording medium.

[0107] 6.2. Indirect printing recording method The inkjet printing method of this embodiment includes a treatment liquid composition application step in which a treatment liquid composition is applied to a fabric; a discharge step in which an ink composition is ejected from a recording head and applied to an intermediate transfer medium; and a transfer step in which the ink composition applied to the intermediate transfer medium is transferred to the fabric to which the treatment liquid composition obtained in the treatment liquid composition application step has been applied. Specifically, in this printing method, an ink composition containing a disperse dye such as a sublimation dye is ejected from a liquid ejection head, which is a recording head, and applied to the intermediate transfer medium. The surface of the intermediate transfer medium to which the ink composition has been applied and the surface of the fabric to which the treatment liquid composition has been applied are then heated while facing each other, thereby transferring the disperse dye contained in the ink composition to the fabric to which the treatment liquid composition has been applied. In this embodiment, this type of printing method is also referred to as an indirect printing recording method. This printing method allows for good printing regardless of the type of fabric.

[0108] 6.2.1. Treatment composition application step For the treatment liquid composition application step, the above-mentioned textile printing method can be referred to.

[0109] 6.2.2.Discharge process In the ejection step, the heated ink composition is ejected from the liquid ejection head and adhered to the intermediate transfer medium. Specifically, the pressure generating means is driven to eject the ink composition filled in the pressure generating chamber of the liquid ejection head from the nozzle.

[0110] Examples of intermediate transfer media that can be used include paper such as plain paper and recording media provided with an ink-receiving layer. Recording media provided with the ink-receiving layer are referred to as, for example, inkjet paper and coated paper. Among these, paper provided with an ink-receiving layer containing inorganic particles such as silica is more preferred. This makes it possible to obtain an intermediate recording material in which bleeding and other issues are suppressed on the recording surface during the drying process of the ink composition applied to the intermediate transfer medium. Furthermore, such a medium makes it easier to retain the disperse dye on the surface of the recording surface, allowing for more efficient sublimation of the disperse dye in the subsequent transfer process.

[0111] In this step, multiple ink compositions may be used. This makes it possible to, for example, broaden the color gamut that can be expressed. One of the multiple ink compositions may be the ink composition of this embodiment, or two or more of the multiple ink compositions may be the ink composition of this embodiment.

[0112] 6.2.3. Transfer process The transfer step is a step in which the surface of the intermediate transfer medium on which the ink composition is adhered and the surface of the fabric on which the treatment liquid composition is adhered are heated while facing each other, thereby transferring the disperse dye contained in the ink composition to the fabric on which the treatment liquid composition is adhered. As a result, the disperse dye is transferred, and a printed textile is obtained, which is the fabric on which the ink composition is adhered.

[0113] In this step, the intermediate transfer medium to which the ink composition has been applied may be heated while facing the fabric to which the treatment liquid composition has been adhered. In this step, it is more preferable to heat the intermediate transfer medium and the fabric to which the treatment liquid composition has been adhered while they are in close contact with each other. This makes it possible, for example, to record a clearer image on the fabric to which the treatment liquid composition has been adhered, i.e., to dye it.

[0114] Examples of heating methods include steaming with steam, heat pressing with dry heat, thermosol, HT steamer with superheated steam, and HP steamer with pressurized steam. The fabric to which the ink composition has been applied may be subjected to heat treatment immediately or after a predetermined time has elapsed. Dry heat is preferred as a heating method, as it provides a printed fabric with excellent texture as well as excellent friction fastness, washing fastness, and color development.

[0115] The heating temperature is preferably 160° C. or higher and 220° C. or lower, and more preferably 190° C. or higher and 210° C. or lower. When the heating temperature is within the above range, the energy required for transfer can be reduced, which tends to improve the productivity of the printed textile. In addition, the color development of the printed textile tends to be improved.

[0116] The heating time, although depending on the heating temperature, is preferably 30 seconds or more and 120 seconds or less, more preferably 40 seconds or more and 90 seconds or less. By keeping the heating time within the above range, the energy required for transfer can be reduced, and the productivity of the printed textile tends to be better. In addition, the color development of the printed textile tends to be better.

[0117] The amount of the ink composition that adheres to the fabric by transfer is, for example, 1.5 mg / cm 2 per unit area of ​​the fabric. 2 More than 6.0mg / cm 2 When the amount of the ink composition applied is within the above range, the color development of the image formed by textile printing is improved, and the drying property of the ink applied to the fabric is ensured, thereby reducing the occurrence of bleeding of the image.

[0118] 6.2.4. Other processes The method may include intermediate and post-processing steps as required.

[0119] An example of the intermediate treatment step is a step of preheating the fabric to which the treatment liquid composition has been applied. An example of the post-treatment step is a step of washing the printed material.

[0120] 6.2. Direct printing recording method The inkjet textile printing method may include a treatment liquid composition application step of applying a treatment liquid composition to a fabric, and an ink composition application step of ejecting an ink composition from a recording head to apply the ink composition to the fabric to which the treatment liquid composition obtained in the treatment liquid composition application step has been applied. In this embodiment, such a textile printing method is also referred to as a direct textile printing recording method. This textile printing method can easily and reliably form dyed portions with fine patterns. Furthermore, because it does not require the use of a plate such as an intermediate transfer medium, it has excellent on-demand properties and can be suitably adapted to small-scale production and multi-item production.

[0121] 6.2.1. Step of Obtaining Fabric with Treatment Liquid Composition Adhered For the treatment liquid composition application step, the above-mentioned textile printing method can be referred to.

[0122] 6.2.2. Ink composition application step In the ink composition application step, an ink composition is applied to the fabric to which the treatment liquid composition has been applied. The ink composition application step may also include a step of applying a further ink composition onto the area to which the ink composition has been applied.

[0123] In the ink composition application process, the maximum amount of ink applied to the fabric is 50 mg / cm 2 More than 200mg / cm 2 Preferably, it is 80 mg / cm or less. 2 More than 150mg / cm 2 When the maximum adhesion amount is within the above range, the color development is better. In addition, the image has excellent resistance to rubbing, and aggregation unevenness tends to be less noticeable.

[0124] In this step, it is preferable to heat the fabric to which the treatment liquid composition has been applied when the ink composition is applied, which makes it possible, for example, to record a clearer image on the fabric to which the treatment liquid composition has been applied, i.e., to dye the fabric.

[0125] Examples of the heating method include a heat press method, a normal pressure steam method, a high pressure steam method, and a Thermofix method. Examples of the heat source for heating include hot air, infrared rays, and microwaves.

[0126] During heating, the surface temperature of the heated fabric is preferably 60°C or higher and 180°C or lower. Having a surface temperature within this range reduces damage to the inkjet head and fabric, and also makes it easier for the ink to wet and spread evenly across the fabric and penetrate more easily. The surface temperature can be measured, for example, using a non-contact thermometer (product name "IT2-80", manufactured by Keyence Corporation).

[0127] The heating time is preferably, for example, from 5 seconds to 5 minutes. By keeping the heating time within this range, it becomes possible to sufficiently heat the fabric while reducing damage to the inkjet head and the fabric.

[0128] 6.2.3. Other processes This method may include intermediate and post-treatment steps as needed, and for these steps, reference can be made to the other steps in the indirect textile printing method described above. [Example]

[0129] The present invention will be described in more detail below using examples and comparative examples, but the present invention is not limited to the following examples.

[0130] 1. Dye printing treatment liquid composition 1.1. Preparation of dye printing treatment liquid composition [Examples 1 to 9 and Comparative Examples 1 to 6] Each component was placed in a mixing tank so as to have the composition shown in Table 1, mixed and stirred, and then filtered through a 5 μm membrane filter to obtain each treatment liquid composition.

[0131] The numerical values ​​for the blending amount of each component in Table 1 represent mass %. The blending amounts of polyester resin and crosslinking agent represent blending amounts (mass %) calculated in solid content terms. "Tg" for polyester resin represents glass transition temperature (°C). "bp" for amine represents normal boiling point (°C) at 1 atmosphere. "Total content of polyester resin and amine" represents the total amount (mass %) of the polyester resin content (mass %) calculated in solid content terms and the amine content (mass %) in the treatment liquid composition. "Mass ratio of amine content to crosslinking agent content" represents the mass ratio of amine content (mass %) to crosslinking agent content (mass %) in the treatment liquid composition calculated in solid content terms.

[0132] The components shown in Table 1 are as follows: (polyester resin) KT-8803: Elitaire (registered trademark) KT-8803 (product name, Unitika Ltd., solid content: 30% by mass)

[0133] (amine) Triethanolamine (tertiary amine, normal boiling point: 335°C) Triethylamine (tertiary amine, normal boiling point: 89.7°C) Diethanolamine (secondary amine, normal boiling point: 217°C)

[0134] (Crosslinking agent) #220: Fixer #220 (product name, Murayama Chemical Laboratory Co., Ltd., isocyanate group-containing compound with an isocyanurate skeleton in its structure, solid content: 40% by mass) WS-500...Epocross (registered trademark) WS-500 (trade name, Nippon Shokubai Co., Ltd., oxazoline group-containing compound, solid content: 39% by mass)

[0135] 1.2. Evaluation of dye printing treatment liquid compositions [Storage stability] The dye printing treatment compositions obtained in Examples 1 to 9 and Comparative Examples 1 to 6 were left to stand at room temperature for 7 days. Thereafter, each of the treatment compositions obtained was visually observed and evaluated according to the following evaluation criteria. The results are shown in Table 1. (Evaluation criteria) A: No separation of solids was observed in the treatment liquid composition. B: Separation of solids was observed in the treatment liquid composition.

[0136] [Table 1]

[0137] 2. Preparation of Inkjet Ink Composition [C Ink] The components were placed in a mixing tank and mixed with a stirrer for 2 hours to obtain the composition shown in Table 2. The mixture was then filtered through a membrane filter with a pore size of 1 μm to obtain ink C as an ink composition. The numerical values ​​for each component in Table 2 represent mass %.

[0138] The components shown in Table 2 are as follows:

[0139] (dye dispersant) Disperse Blue 359: CI Disperse Blue 359 (commercially available)

[0140] (Water-soluble organic solvent) Propylene glycol Glycerin Methyl triglycol

[0141] (Surfactant) BYK(R)-348: BYK(registered trademark)-348 (trade name, silicone surfactant, manufactured by BYK Japan Co., Ltd.)

[0142] [Table 2]

[0143] 3. Preparation of printed materials 3.1. Preparation of fabric with treatment composition (Examples 1 to 9 and Comparative Examples 1 to 6) The treatment liquid composition was adhered to fabric using each of the treatment liquid compositions of Examples 1 to 9 and Comparative Examples 1 to 6. Specifically, fabrics to which the treatment liquid composition was adhered were obtained as follows. The fabric was prepared by immersing a white cotton braid #4000 (product name, manufactured by Toyobo Co., Ltd.) in the treatment liquid composition, and applying the treatment liquid composition to the fabric with a mangle roller so that the wringing rate was 80%. The fabric was then dried at 140°C for 2 minutes and further dried at 170°C for 1 minute to obtain fabrics with the treatment liquid composition adhered thereto.

[0144] The drawing rate (S) was calculated by the following formula (2). S(%)=[(AB) / B]×100...(2) In the formula (2), S represents the wringing rate (%), A represents the mass of the fabric to which the treatment liquid composition has been applied, and B represents the mass of the fabric before the treatment liquid composition has been applied.

[0145] 3.2. Preparation of intermediate recording medium with ink composition attached (Examples 1 to 9 and Comparative Examples 1 to 6) The ink C was filled into the cartridge of an inkjet printer PX-G930 (trade name, manufactured by Seiko Epson Corporation). Then, the ink was applied to a coated surface of coated paper (TRANSJET Sportline 1254 (trade name), manufactured by Chem Paper Co.) as an intermediate transfer medium at a resolution of 720 dpi x 720 dpi with an ink ejection rate of 12 mg / inch at a 100% duty ink ejection rate. 2 An image having a solid pattern was formed by depositing the ink composition under the conditions of (a) to (c) above. This gave an intermediate recording medium having the ink composition deposited thereon.

[0146] 3.3.Textile printing (Examples 1 to 9 and Comparative Examples 1 to 6) The image-formed surface of the intermediate recording medium to which the ink composition was adhered obtained above was then pressed onto the fabric (cotton blade) to which the treatment liquid composition was adhered obtained above, using a heat press machine TP-608M (trade name, manufactured by Taiyo Seiki Co., Ltd.) at a temperature of 200°C and a pressure of 4.2 N / cm. 3 The ink was thermally transferred for 60 seconds and 60 seconds, and printed fabrics with ink C attached were obtained.

[0147] 4. Evaluation of printed items 4.1.Abrasion resistance The rubbing fastness of each of the printed textiles obtained by the above-mentioned printing in Examples 1 to 9 and Comparative Examples 1 to 6 was evaluated according to the following evaluation criteria in accordance with the wet test specified in JIS L0849, "Testing method for color fastness to rubbing." The test was conducted using the crock meter method. The evaluation was conducted by visually determining the staining grade in accordance with Clause 10 (Determination of color fastness) of JIS L0801, which is cited in JIS L0849. The results are shown in Table 3. A rating of C or higher can be said to indicate good results. (Evaluation criteria) A: Abrasion resistance exceeds grade 4. B: The abrasion resistance is between grade 3-4 (intermediate grade) and grade 4. C: Abrasion resistance is between grade 2-3 (intermediate grade) and grade 3. D: The abrasion resistance is between grade 1-2 (intermediate grade) and grade 2. E: Abrasion resistance is grade 1 or lower.

[0148] 4.2. Washing fastness The printed textiles obtained by the above-described textile printing in Examples 1 to 9 and Comparative Examples 1 to 6 were subjected to a washing fastness test in accordance with Method A-2 of JIS L0844 (Testing method for color fastness to washing). Specifically, the printed textiles obtained by the above-described textile printing in Examples 1 to 9 and Comparative Examples 1 to 6 were washed in a household washing machine (ZABOON (trade name), manufactured by Toshiba Corporation) using a general household laundry detergent (fluorescent brightener-free), rinsed, dehydrated, and dried, and then the discoloration of the printed textiles was evaluated. The discoloration was evaluated according to the discoloration gray scale of JIS L0804:2004 (ISO 105-C10(B2)) and the degree of discoloration was evaluated according to the following evaluation criteria. The results are shown in Table 3. A rating of C or higher indicates a good effect. (Evaluation criteria) A: Washing fastness is grade 5 or higher. B: Washing fastness is grade 4 or higher but less than grade 5. C: Washing fastness is grade 3 or higher but less than grade 4. D: Washing fastness is grade 2 or higher but lower than grade 3. E: Washing fastness is less than grade 2.

[0149] 4.3.Color development Each of the printed textiles obtained by the above-mentioned textile printing in Examples 1 to 9 and Comparative Examples 1 to 6 was left to stand for 3 days at a room temperature of 25° C. Thereafter, the color density (OD value) of each of the printed textiles after standing to C ink was measured using a fluorescent spectrodensitometer FD-7 (trade name, manufactured by Konica Minolta, Inc.) under the following measurement conditions at a room temperature of 25° C. (Measurement conditions) Observation light source: D65 Field of view: 2° Status: T Polarizing filter: Not installed

[0150] Thereafter, the OD values ​​for the printed materials in Examples 1 to 9 and Comparative Examples 2 to 6 were compared with the OD value for the printed material in Comparative Example 1, and the color development with C ink was evaluated according to the following evaluation criteria. The results are shown in Table 3. (Evaluation criteria) A: Compared with the OD value for the printed material in Comparative Example 1, the OD value was 220% or more. B: Compared with the OD value for the printed material in Comparative Example 1, the OD value was 150% or more and less than 220%. C: Compared with the OD value for the printed material in Comparative Example 1, the OD value was 100% or more and less than 150%. D: Compared with the OD value for the printed material in Comparative Example 1, the OD value was 50% or more and less than 100%. E: Compared with the OD value for the printed material in Comparative Example 1, the OD value was less than 50%.

[0151] 4.4.Texture The texture of each of the printed textiles obtained by the above-mentioned textile printing in Examples 1 to 13 and Comparative Examples 1 to 5 was evaluated by a sensory test. Specifically, judges performed a sensory evaluation of the feel of the obtained printed textiles and evaluated the texture according to the following criteria. The results are shown in Table 3. Note that even those that received an E rating were suitable for practical use. (Evaluation criteria) A: The printed material is soft and comparable to the texture of the original fabric. B: The printed material is soft, but has a slightly stiff feel. C: The printed material is slightly hard and feels a little stiff to the touch. D: The printed material is hard and feels a little stiff to the touch. E: The printed material is hard and has a significantly stiff feel.

[0152] [Table 3]

[0153] As shown in Table 1, it was found that by applying the treatment liquid composition of this embodiment to fabric and then printing the fabric to which the treatment liquid composition has been applied, a printed textile having excellent friction fastness, washing fastness, and color development, as well as good texture, can be obtained.

[0154] Comparing Example 1 with Example 2, it was found that when the content of tertiary amine is in the range of 1% by mass or more and 3% by mass or less relative to the total amount of the treatment liquid composition, printed textiles with better washing fastness can be obtained.

[0155] Comparing Example 2 with Example 4, it was found that when a tertiary amine with a relatively low normal boiling point is used, the tertiary amine is less likely to remain on the printed material, resulting in a printed material with even better rub fastness.

[0156] Comparisons between Examples 1 and 3, and between Examples 2 and 4, reveal that the use of a tertiary amine having a hydroxyl group makes it possible to obtain printed textiles with treatment liquid compositions having superior storage stability.

[0157] Comparing Example 8 with Examples 7 and 9, it was found that when the content of the polyester resin is in the range of 2% by mass or more and 20% by mass or less, in terms of solid content, relative to the total amount of the treatment liquid composition, printed textiles with even better abrasion fastness, washing fastness, and color development can be obtained.

[0158] Comparing Example 8 with Examples 7 and 9, it was found that when the total content of the polyester resin and the isocyanate group-containing compound is in the range of 3 mass % or more and 23 mass % or less, calculated as solid content, relative to the total amount of the treatment liquid composition, printed textiles with even better abrasion fastness, washing fastness, and color development can be obtained.

[0159] Comparing Example 5 with Example 6, it was found that when the total content of the polyester resin and the isocyanate group-containing compound is in the range of 3 mass % or more and 10 mass % or less, in terms of solid content, relative to the total amount of the treatment liquid composition, a printed textile having an even better texture can be obtained.

[0160] Comparing Example 5 with Example 6, it was found that when the content of the isocyanate group-containing compound is in the range of 1% by mass or more and 3% by mass or less, in terms of solid content, relative to the total amount of the treatment liquid composition, printed textiles with even better texture can be obtained.

[0161] Comparing Examples 1 and 2 with Comparative Examples 5 and 6, it was found that when the mass ratio of the tertiary amine to the content of the isocyanate group-containing compound is in the range of 0.3 to 5, a printed textile having excellent texture as well as superior rub fastness, wash fastness, and color development can be obtained.

Claims

1. A treatment liquid composition to be applied to a fabric, The composition comprises a polyester resin, a tertiary amine, an isocyanate group-containing compound as a crosslinking agent, and water, A treatment liquid composition for dye textile printing, wherein the content of the tertiary amine is 1% by mass or more and 5% by mass or less based on the total amount of the treatment liquid composition.

2. The dye textile printing treatment liquid composition according to claim 1 , wherein the tertiary amine has a hydroxyl group.

3. The dye printing treatment liquid composition according to claim 1 or 2, wherein the tertiary amine has a normal boiling point of 340°C or lower.

4. The dye printing treatment liquid composition according to any one of claims 1 to 3, wherein the isocyanate group-containing compound has an isocyanurate skeleton in its structure.

5. 5. The dye printing treatment liquid composition according to claim 1, wherein the content of the polyester resin is 2% by mass or more and 20% by mass or less in terms of solid content, relative to the total amount of the treatment liquid composition.

6. 6. The dye printing treatment liquid composition according to claim 1, wherein a content of the isocyanate group-containing compound is 1% by mass or more and 3% by mass or less in terms of a solid content, relative to the total amount of the treatment liquid composition.

7. 7. The treatment liquid composition for dye printing according to claim 1, wherein a total content of the polyester resin and the isocyanate group-containing compound is 3% by mass or more and 23% by mass or less in terms of solid content, with respect to a total amount of the treatment liquid composition.

8. The dye printing treatment liquid composition according to any one of claims 1 to 7, wherein the tertiary amine is at least one selected from the group consisting of triethanolamine, triisopropanolamine, and triethylamine.

9. 9. The dye printing treatment liquid composition according to claim 1, wherein a mass ratio of a content of the tertiary amine to a content of the isocyanate group-containing compound is 0.3 or more and 5 or less.

10. The dye textile printing treatment liquid composition according to any one of claims 1 to 9, wherein the fabric contains a fiber having a hydroxyl group.

11. The dye printing treatment liquid composition according to any one of claims 1 to 10, which is used to adhere to the fabric before dye printing on the fabric.

12. A method for producing a dye textile printing apparatus, comprising: a dye textile printing treatment liquid composition according to any one of claims 1 to 11; and an inkjet ink composition; The inkjet ink composition comprises a disperse dye and water. Composition set.

13. A textile printing method, comprising a treatment liquid composition applying step of applying the dye textile printing treatment liquid composition according to any one of claims 1 to 11 to a fabric.

14. a drying step of drying the treatment liquid composition applied to the fabric after the treatment liquid composition application step, the drying temperature in the drying step is a temperature equal to or higher than the normal boiling point of the tertiary amine contained in the treatment liquid composition; The textile printing method according to claim 13.

15. a treatment liquid composition applying step of applying the dye textile printing treatment liquid composition provided in the composition set according to claim 12 to a fabric; a discharge step of discharging the inkjet ink composition provided in the composition set according to claim 12 from a recording head and depositing the ink on an intermediate transfer medium; a transfer step of transferring the inkjet ink composition adhered to the intermediate transfer medium to the fabric to which the dye textile printing treatment liquid composition has been adhered, Inkjet printing method.

Images