Treatment liquid composition for dye textile printing, ink set, and recording method

Abstract

To provide printed matter which is excellent in fixability and color developability, suppresses color unevenness, and is obtained by reducing the total nitride content during drainage.SOLUTION: The treatment liquid composition for dye printing contains one or more sugars selected from lactose, sucrose, trehalose, and sorbitol, a polymer compound, and a pH adjuster, and has a pH of 7.0 or less and a viscosity of 2. 0mPa s or more and 20. 000mPa s or less.SELECTED DRAWING: None

Description

[Technical Field]

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

[0002] Inkjet recording methods are capable of recording high-resolution images with relatively simple equipment and have been rapidly developing in various fields. For example, Patent Document 1 discloses a water-based functional ink for inkjet textile printing to be used in combination with a recording ink containing a reactive dye, the ink containing a humectant and an alkali agent, a sizing agent content of 0% by mass or more and 1% by mass or less, and a hydrogen ion concentration index (pH) of 10 or less, with the aim of providing a functional ink for inkjet textile printing that can improve the durability of the inkjet head while ensuring the color development of the recording ink. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2024-25269 Summary of the Invention [Problem to be solved by the invention]

[0004] In textile printing technology, pretreatment is carried out to prevent bleeding of recording ink that has landed on a recording medium such as fabric and to improve fixation. Urea is used in such pretreatment solutions to improve fixation and color development, but environmental compatibility is a concern because waste liquid containing urea is generated when the printed material is washed. [Means for solving the problem]

[0005] The dye printing treatment liquid composition of the present invention contains one or more saccharides selected from lactose, sucrose, trehalose, and sorbitol, a polymer compound, and a pH adjuster, and has a pH of 7.0 or less and a viscosity of 2.0 mPa s or more and 20,000 mPa s or less.

[0006] The ink set of the present invention comprises the dye printing treatment liquid composition, and a printing ink containing an acid dye and water and / or a printing ink containing a reactive dye and water.

[0007] The recording method of the present invention comprises a treatment liquid application step of applying the dye printing treatment liquid composition to a fabric, and an ink application step of applying a textile printing ink containing an acid dye and water and / or a textile printing ink containing a reactive dye and water to the fabric. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a diagram illustrating an example of a recording apparatus used in the recording method of the present embodiment. [Figure 2] 1 is a table showing examples and comparative examples using a rotary screen system. [Figure 3] 1 is a table showing examples and comparative examples using an inkjet method. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention (hereinafter referred to as "the present embodiment") will be described in detail with reference to the drawings as necessary, but the present invention is not limited to this, and various modifications are possible without departing from the spirit of the present invention. In the drawings, the same elements are given the same reference numerals, and redundant explanations will be omitted. Furthermore, positional relationships such as up, down, left, and right will be based on the positional relationships shown in the drawings unless otherwise specified. Furthermore, the dimensional ratios of the drawings are not limited to those shown in the drawings.

[0010] 1. Dye printing treatment liquid composition The dye printing treatment liquid composition according to this embodiment (hereinafter also simply referred to as "treatment liquid composition") contains one or more sugars selected from lactose, sucrose, trehalose, and sorbitol, a polymer compound, and a pH adjuster, and has a pH of 7.0 or less and a viscosity of 2.0 mPa s or more and 20,000 mPa s or less.

[0011] In dye printing, a treatment liquid composition is applied to a fabric before printing in order to improve the color development and other properties of the printing ink. Urea has been used in such treatment liquid compositions in the hope that it will dissolve the dye and fix it to the fabric, as well as provide effects such as uniform temperature during the steaming process. However, when a treatment liquid composition containing urea is used, a large amount of waste liquid containing nitrogen sources such as urea is generated during the washing of the printed fabric after printing, raising concerns about its environmental adaptability.

[0012] In contrast, the treatment liquid composition of this embodiment uses a specific saccharide, which improves the fixability and color development of the textile printing ink, suppresses color unevenness by uniforming the temperature in the steaming process, and provides a printing method that emits less nitrogen and is highly environmentally friendly.

[0013] The treatment liquid composition of this embodiment may be used together with an inkjet textile printing ink or a rotary textile printing ink, and the dye contained in the textile printing ink is not particularly limited. Among these, the treatment liquid composition of this embodiment is preferably used together with a textile printing ink containing an acid dye and water and / or a textile printing ink containing a reactive dye and water. Use with such textile printing inks tends to further improve fixability and color development.

[0014] The dye printing treatment liquid composition, ink set, recording method, and the like according to this embodiment will be described in detail below.

[0015] 1.1.Sugars The treatment liquid composition of this embodiment contains one or more sugars selected from lactose, sucrose, trehalose, and sorbitol. Among these, trehalose and sorbitol are more preferable. The use of such sugars tends to further improve fixability and color development.

[0016] The mechanism by which fixation and color development are improved by using the above-mentioned specified sugars is that dyeing occurs when functional groups in the dye form covalent or non-covalent bonds with functional groups in the fibers of the fabric.The above-mentioned sugars improve the affinity of the dye with water and increase the solubility of the dye, thereby promoting the formation of covalent or non-covalent bonds between the dye and the fabric, thereby further improving fixation and color development.

[0017] In addition, the use of the specified sugars can suppress in-plane color unevenness. Specifically, the formation of covalent or non-covalent bonds between the dye and the fabric is promoted in the steaming reaction described below, and the use of the sugars improves viscosity, suppressing in-plane color unevenness. Furthermore, the use of the specified sugars is thought to suppress variations in in-plane temperature differences during the steaming process, thereby suppressing in-plane color unevenness. For example, in the steaming process, in areas where the temperature is high or where excessive steam is supplied, the sugars are more likely to react with water than in other areas. As a result, in areas where the temperature is high or where excessive steam is supplied, the temperature is suppressed by the endothermic reaction between the sugars and water, and the in-plane temperature difference is thought to be homogenized.

[0018] However, in the treatment liquid composition of this embodiment, the mechanism by which fixability and color development are improved, and the mechanism by which in-plane color unevenness is suppressed, are not limited to those described above.

[0019] The content of the sugars is preferably 1.0 to 25% by mass relative to the total amount of the treatment liquid composition, and may be adjusted appropriately depending on the application.

[0020] Specifically, the sugar content in the treatment liquid composition used together with the inkjet printing ink is preferably 1.0 to 20 mass%, 2.0 to 15 mass%, 3.0 to 10 mass%, or 4.0 to 7.5 mass%, relative to the total amount of the treatment liquid composition. When the sugar content is within the above range, fixability and color development tend to be further improved in inkjet recording methods.

[0021] The sugar content of the treatment liquid composition used together with analog textile printing ink such as that used in the rotary screen method is preferably 2.5 to 25 mass %, 5.0 to 20 mass %, or 7.5 to 15 mass %, relative to the total amount of the treatment liquid composition. When the sugar content is within the above range, fixability and color development tend to be further improved in analog textile printing.

[0022] 1.2. Polymer compounds By including a polymer compound, the viscosity of the treatment liquid composition is further improved, and color unevenness tends to be suppressed.

[0023] The polymer compound is preferably one that has the effect of improving viscosity under acidic conditions of pH 7 or less, which tends to suppress color unevenness. Such polymer compounds are not particularly limited, but examples include one or more selected from the group consisting of guar gum, tamarind gum, xanthan gum, carboxyethyl cellulose, ammonium cellulose, hydroxyethyl cellulose, sodium alginate, acrylic polymer, polyethylene glycol, polyacrylamide, acrylamide copolymer, and dextrin. Among these, hydroxyethyl cellulose and sodium alginate are more preferred.

[0024] The content of the polymer compound is preferably 0.1 to 45% by mass relative to the total amount of the treatment liquid composition, and may be adjusted appropriately depending on the application.

[0025] Specifically, the content of the polymer compound in the treatment liquid composition used together with the inkjet printing ink is preferably 0.1 to 25 mass%, 0.3 to 10 mass%, 0.5 to 5.0 mass%, 0.75 to 4.0 mass%, or 1.0 to 3.0 mass%, relative to the total amount of the treatment liquid composition. When the content of the polymer compound is within the above range, color unevenness tends to be further suppressed in inkjet recording methods.

[0026] The content of the polymer compound in the treatment liquid composition used together with the analog textile printing ink is preferably 2.5 to 45 mass %, 5.0 to 35 mass %, or 7.5 to 20 mass %, relative to the total amount of the treatment liquid composition. When the content of the polymer compound is within the above range, color unevenness tends to be further suppressed in analog textile printing.

[0027] 1.3. pH adjuster The inclusion of a pH adjuster improves the reaction efficiency between the fabric and the dye, further improving fixation and color development, and also suppressing color unevenness. Such pH adjusters are not particularly limited, but are preferably those that acidify the treatment liquid composition, and examples thereof include one or more selected from the group consisting of citric acid, ammonium phosphate, ammonium sulfate, boric acid, lactic acid, boronic acid, maleic acid, malic acid, polyacrylic acid, tartaric acid, ammonium tartrate, ammonium lactate, acetic acid, ammonium acetate, ammonium nitrate, oxalic acid, ammonium oxalate, thiosulfuric acid, ammonium thiosulfate, and formic acid. Among these, ammonium phosphate, boric acid, and formic acid are more preferred.

[0028] The content of the pH adjuster is preferably 0.01 to 3.0% by mass relative to the total amount of the treatment liquid composition, and may be adjusted appropriately depending on the application.

[0029] Specifically, the content of the pH adjuster in the treatment liquid composition used together with the inkjet printing ink is preferably 0.01 to 2.0 mass%, 0.05 to 1.0 mass%, or 0.08 to 0.5 mass%, relative to the total amount of the treatment liquid composition. When the content of the pH adjuster is within the above range, fixability and color development tend to be further improved in inkjet recording methods.

[0030] The content of the pH adjuster in the treatment liquid composition used together with the analog textile printing ink is preferably 0.10 to 3.0 mass%, 0.20 to 2.0 mass%, 0.30 to 1.5 mass%, or 0.50 to 1.25 mass%, relative to the total amount of the treatment liquid composition. When the content of the pH adjuster is within the above range, fixability and color development tend to be further improved in analog textile printing.

[0031] 1.4.pH If the pH exceeds 7, the hydroxyl groups of the sugars may react with the functional groups of the dye, potentially reducing the reaction efficiency between the fabric and the dye. Therefore, in the treatment liquid composition of this embodiment using sugars, the pH is 7.0 or less, preferably 6.5 or less, 6.0 or less, 5.5 or less, 5.0 or less, or 4.5 or less. A pH of 7.0 or less improves the reaction efficiency between the fabric and the dye, thereby improving fixability and color development and also reducing color unevenness. Furthermore, the pH of the treatment liquid composition is preferably 1.0 or more, 1.5 or more, 2.0 or more, or 2.5 or more. A pH of 1.0 or more provides excellent handleability and tends to reduce acid-induced damage to fabrics and the like.

[0032] 1.5.Viscosity The viscosity of the treatment liquid composition is 2.0 mPa·s or more and 20,000 mPa·s or less, and may be adjusted appropriately depending on the application. In this specification, viscosity refers to a value measured at 20°C using a Brookfield viscometer at 20 rpm for 60 seconds.

[0033] Specifically, the viscosity of the pretreatment liquid composition used with the inkjet printing ink is preferably 2.5 mPa·s or more and 100 mPa·s or less, 3.0 mPa·s or more and 50 mPa·s or less, 3.5 mPa·s or more and 25 mPa·s or less, or 4.0 mPa·s or more and 10 mPa·s or less. A viscosity of 2.5 mPa·s or more tends to further improve fixability and color development, and to suppress bleeding. Furthermore, a viscosity of 100 mPa·s or less tends to further improve the ejection stability of the treatment liquid composition in the inkjet printing method.

[0034] The viscosity of the pretreatment liquid composition used with the analog textile printing ink is preferably 500 mPa·s or more and 20,000 mPa·s or less, 750 mPa·s or more and 10,000 mPa·s or less, 1,000 mPa·s or more and 5,000 mPa·s or less, or 1,250 mPa·s or more and 2,500 mPa·s or less. A viscosity of 500 mPa·s or more tends to further improve fixability and color development, and to suppress bleeding. A viscosity of 20,000 mPa·s or less tends to further improve the coatability of the treatment liquid composition in analog textile printing.

[0035] 1.6.Urea In a processing liquid composition for dye printing, urea can contribute to improving the fixability and color development of printed ink. However, a large amount of water must be used to remove urea from the printed material, which poses a problem in terms of environmental adaptability, such as wastewater treatment.

[0036] The treatment liquid composition of this embodiment contains the above-mentioned specific sugars as a substitute for urea. Therefore, the urea content is preferably 50 g / kg or less, 40 g / kg or less, 30 g / kg or less, 20 g / kg or less, 10 g / kg or less, 5 g / kg or less, or 1 g / kg or less, relative to the total amount of the treatment liquid composition. Urea may not be present. By keeping the urea content at 50 g / kg or less, the amount of water used during drainage can be reduced, and environmental adaptability tends to be further improved.

[0037] 1.7. Water-soluble organic solvents The treatment liquid composition preferably contains a water-soluble organic solvent. Examples of water-soluble organic solvents include glycol-based solvents, glycol monoether-based solvents, compounds containing three hydroxyl groups such as glycerin, nitrogen-containing solvents, and alcohol-based solvents. From the viewpoint of improving penetration and color development, it is preferable to contain a glycol-based solvent among water-soluble organic solvents. The water-soluble organic solvents may be used alone or in combination of two or more.

[0038] Specific examples of glycol-based solvents include 1,3-butylene glycol (1,3-butanediol), 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, 1,6-hexanediol, etc. From the viewpoint of more effectively and reliably achieving the effects of the present invention, 1,3-butylene glycol (1,3-butanediol) is preferred.

[0039] The content of the glycol-based solvent is preferably 0.1 to 5.0 mass %, 0.5 to 3.0 mass %, or 0.7 to 2.0 mass %, relative to the total amount of the treatment liquid composition. By having the content of the glycol-based solvent within the above range, the effects of the present invention can be more effectively and reliably achieved.

[0040] Examples of solvents other than glycol-based solvents include glycol monoether-based solvents such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, and triethylene glycol monobutyl ether; nitrogen-containing solvents such as 2-pyrrolidone, N-methyl-2-pyrrolidone, and N-ethyl-2-pyrrolidone; and alcohol-based solvents such as methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butanol, 2-butanol, tert-butanol, isobutanol, and n-pentanol.

[0041] The content of the water-soluble organic solvent is preferably 0.1 to 5.0 mass %, 0.5 to 3.0 mass %, or 0.7 to 2.0 mass %, relative to the total amount of the treatment liquid composition. By having the content of the water-soluble organic solvent within the above range, the effects of the present invention can be more effectively and reliably achieved.

[0042] 1.7.Surfactants The treatment liquid composition may further contain a surfactant. Examples of surfactants include acetylene glycol surfactants, silicone surfactants, and fluorine surfactants. The surfactants may be used alone or in combination of two or more.

[0043] From the viewpoint of more effectively and reliably achieving the effects of the present invention, the treatment liquid composition preferably contains an acetylene glycol surfactant. Examples of acetylene glycol surfactants include Olfine (registered trademark) B, Y, P, A, STG, SPC, E1004, E1010, PD-001, PD-002W, PD-003, PD-004, EXP.4001, EXP.4036, EXP.4051, AF-103, AF-104, AK-02, SK-14, and AE-3 (manufactured by Nissin Chemical Industry Co., Ltd.), Surfynol (registered trademark) 104, 104E, 104H, 104A, 104BC, 104DPM, 104PA, 104PG-50, 104S, 420, 440, 465, and 485, and Acetylenol (registered trademark) E00, E00P, E40, and E100 (manufactured by Kawaken Fine Chemicals Co., Ltd.). Among these, it is preferable to use PD-002W from the same viewpoint as above.

[0044] Examples of silicone surfactants include polysiloxane compounds such as polyether-modified organosiloxane. Commercially available polyether-modified organosiloxanes include BYK-306, BYK-307, BYK-333, BYK-341, BYK-345, BYK-346, and BYK-348 (manufactured by BYK Japan Co., Ltd.), KF-351A, KF-352A, KF-353, KF-354L, KF-355A, KF-615A, KF-945, KF-640, KF-642, KF-643, KF-6020, X-22-4515, KF-6011, KF-6012, KF-6015, and KF-6017 (manufactured by Shin-Etsu Chemical Co., Ltd.).

[0045] Examples of fluorine-based surfactants include fluorine-modified polymers, such as BYK-340 (manufactured by BYK Japan KK).

[0046] The content of the surfactant is preferably 0.01 to 1.5 mass %, 0.05 to 1.0 mass %, or 0.07 to 0.75 mass %, relative to the total amount of the treatment liquid composition. By having the content of the surfactant within the above range, the effects of the present invention can be more effectively and reliably achieved.

[0047] 1.8.Water The treatment liquid composition contains water, which may include, for example, pure water such as ion-exchanged water, ultrafiltered water, reverse osmosis water, and distilled water, and ultrapure water.

[0048] The content of water is preferably 60 to 98 mass % relative to the total amount of the treatment liquid composition, and may be adjusted appropriately depending on the application.

[0049] Specifically, the water content of the treatment liquid composition used together with the textile printing ink for the inkjet system is preferably 70 to 98 mass %, 80 to 96 mass %, or 85 to 94 mass %, relative to the total amount of the treatment liquid composition. When the water content is within the above range, the ejection stability of the treatment liquid composition in the inkjet system tends to be further improved.

[0050] The water content of the treatment liquid composition used together with the analog textile printing ink is preferably 60 to 95 mass %, 65 to 90 mass %, or 70 to 85 mass %, relative to the total amount of the treatment liquid composition. When the water content is within the above range, the coatability of the treatment liquid composition in analog textile printing tends to be further improved.

[0051] 1.9.Colorants The treatment liquid composition may contain a coloring material. When the treatment liquid composition contains a coloring material, it is possible to color a fabric using the treatment liquid composition depending on the analog textile printing method. In particular, when jet dyeing is performed as the analog textile printing method, it is preferable that the treatment liquid composition contains a coloring material.

[0052] On the other hand, in analog textile printing other than jet dyeing and digital textile printing such as inkjet printing, the treatment liquid composition is not intended for coloring but is used to improve the fixation of the textile printing ink, and in this respect it is at least distinguished from the textile printing ink. That is, it is also preferable that the treatment liquid composition is substantially free of colorant. More specifically, the content of the colorant in the treatment liquid composition is preferably 0.1% by mass or less, 0.05% by mass or less, or 0.01% by mass or less, relative to the total amount of the treatment liquid composition. The lower limit of the colorant content is not particularly limited, but is preferably 0% by mass.

[0053] 1.10.Other Ingredients The treatment liquid composition may further contain components other than those described above, as necessary. Such components are not particularly limited, but examples thereof include solubilizing agents, viscosity modifiers, antioxidants, preservatives, antifungal agents, corrosion inhibitors, chelating agents for capturing metal ions that affect dispersion, other additives, and solvents other than those described above.

[0054] The treatment liquid composition of this embodiment can be prepared by a known method, for example, by mixing the components in any order and, if necessary, performing filtration or the like to remove impurities and foreign matter. The components can be mixed, for example, by sequentially adding the components to a container equipped with a stirring device such as a mechanical stirrer or a magnetic stirrer, and stirring and mixing the components. Filtration methods include, for example, centrifugal filtration and filter filtration.

[0055] 1.11. Recording Media The recording medium used in this embodiment is not particularly limited, but may be a fabric, and examples of fibers that make up the fabric include natural fibers such as cotton, silk, and wool, regenerated fibers such as rayon and cupra, blends of these natural fibers with regenerated fibers, and blends of these natural fibers with artificial fibers such as polyester fibers, nylon fibers, triacetate fibers, diacetate fibers, and polyamide fibers.

[0056] The treatment liquid composition of this embodiment is preferably applied to a fabric having an amide group. Such fabrics are not particularly limited, but include, for example, fabrics containing one or more fibers selected from the group consisting of silk, wool, nylon, and polyamide elastomers. Examples include fabrics containing one or more fibers selected from the group consisting of silk, wool, nylons such as nylon 6, nylon 6,6, and nylon 11, and polyamide elastomers. The fabric may be a blend containing these fibers, such as a blend of 80% nylon and 20% polyamide elastomer. Use of the treatment liquid composition on such recording media tends to further improve fixability and color development.

[0057] 2. Ink set The ink set of this embodiment includes the dye printing treatment liquid composition described above, and a textile printing ink containing an acid dye and water and / or a textile printing ink containing a reactive dye and water. The ink set of this embodiment also preferably includes the dye printing treatment liquid composition described above, and an inkjet textile printing ink containing an acid dye and water and / or an inkjet textile printing ink containing a reactive dye and water. Use of such an ink set further improves fixability and color development. In this embodiment, a single recording apparatus may be equipped with both an acid dye textile printing ink and a reactive dye textile printing ink.

[0058] Examples of reactive dyes contained in the textile printing ink include CI Reactive Yellow 3, 6, 12, 18, and 86; CI Reactive Orange 2, 5, 12, 13, and 20; CI Reactive Red 3, 4, 7, 12, 13, 15, 16, 24, 29, 31, 32, 33, 43, 45, 46, 58, and 59; CI Reactive Violet 1 and 2; CI Reactive Blue 2, 3, 5, 7, 13, 14, 15, 25, 26, 39, 40, 41, 46, 49, and 176; CI Reactive Green 5 and 8; CI Reactive Brown 1, 2, 7, 8, 9, 11, and 14; and CI Reactive Black 1, 2, 3, 8, 10, 12, and 13. In this specification, reactive dyes refer to compounds classified as reactive dyes in the Color Index.

[0059] In this embodiment, the fabric to which the treatment liquid composition has been applied by the inkjet method may be dried, and then the printing ink may be applied by the inkjet method. Alternatively, the fabric to which the treatment liquid composition has been applied by analog textile printing such as the rotary screen method may be dried, and then the printing ink may be applied by the inkjet method. Alternatively, the fabric may be immersed in the treatment liquid composition, dried, and then the printing ink may be applied by the inkjet method. In this way, when drying is performed after the application of the treatment liquid composition, the viscosity of the treatment liquid composition and the viscosity of the printing ink do not need to be the same.

[0060] The inks used are not limited to inkjet printing inks, and inks for analog printing such as rotary screen printing may also be used in combination.

[0061] 3. Inkjet recording method The recording method of this embodiment comprises a treatment liquid application step of applying the above-mentioned dye printing treatment liquid composition to a fabric, and an ink application step of applying a textile printing ink containing an acid dye and water and / or a textile printing ink containing a reactive dye and water to the fabric. The inkjet recording method of this embodiment also preferably comprises a treatment liquid application step of applying the above-mentioned dye printing treatment liquid composition to a fabric, and an ink application step of applying an inkjet textile printing ink containing an acid dye and water and / or an inkjet textile printing ink containing a reactive dye and water to the fabric by an inkjet method.

[0062] 3.1. Treatment liquid application process The treatment liquid application step is a step of applying a treatment liquid composition to a recording medium. The method for applying the treatment liquid composition to the fabric is not particularly limited, but for example, the fabric may be immersed in or passed through the treatment liquid composition, or the composition may be applied by an inkjet method. Also preferred is any of a spray processing method, a padding processing method, a screen method, and a kiss roll method. Furthermore, after applying the treatment liquid composition, the fabric may be dried once before applying the printing ink.

[0063] In this embodiment, the term "inkjet method" refers to a method of ejecting an ink composition or a treatment liquid from a nozzle in an inkjet head. Examples of such methods include a method of driving a pressure generating means to eject a composition filled in a pressure generating chamber of an inkjet head from a nozzle, and a method of ejecting the composition by applying thermal energy. The method of applying pressure to the ink composition in the nozzle is not particularly limited, but examples include a piezoelectric method in which a piezoelectric element is used to eject droplets of the ink composition, and a thermal method in which heat is used to eject droplets.

[0064] 3.2.Ink application process The ink application step is a step of further applying a textile ink onto the portion to which the treatment liquid composition has been applied. In the ink application step, it is also preferable to apply the textile ink by an inkjet method. When the treatment liquid application step and the ink application step are performed by the inkjet method, the treatment liquid application step and the ink application step may be performed in the same pass or in different passes. By performing the treatment liquid application step and the ink application step in the same pass, the productivity of the printed textile tends to be further improved.

[0065] 3.3.Steam process In the steaming process, steam is applied to the fabric with the printing ink attached, using a normal pressure steaming method or a high pressure steaming method. This promotes the fixation of the dye to the fabric. The steaming conditions are not particularly limited, but examples include steaming for 5 to 20 minutes at 80 to 150°C. After that, a washing process may be performed in which the fabric is washed to remove excess components, such as components contained in the treatment liquid composition and the printing ink that are not attached to the fabric, and a drying process may be performed in which the washed printed fabric is dried.

[0066] 4. Inkjet recording device When the treatment liquid composition and the textile ink are applied to the recording medium by an inkjet recording apparatus, the inkjet recording apparatus used is not particularly limited, and either a serial type or a line type can be used.

[0067] As an example of an inkjet recording device, a perspective view of a serial recording device is shown in Fig. 1. As shown in Fig. 1, the serial recording device 10 includes a conveying unit 120 and a recording unit 130. The conveying unit 120 conveys the recording medium F fed to the serial recording device to the recording unit 130, and ejects the recording medium after recording outside the serial recording device. Specifically, the conveying unit 120 has feed rollers and conveys the fed recording medium F in the sub-scanning direction T1.

[0068] The recording unit 130 in the recording device also includes a carriage 134 carrying an inkjet head 131 having nozzles that eject the treatment liquid composition and the textile ink onto the recording medium F sent from the conveying unit 120, and a carriage movement mechanism 135 that moves the carriage 134 in the main scanning directions S1 and S2 of the recording medium F.

[0069] Furthermore, the recording unit 130 in the recording device has nozzles that eject the treatment liquid composition and the textile ink.

[0070] In the case of a serial type recording device, an inkjet head 131 having a length smaller than the width of the recording medium is provided, and the head moves to perform recording in multiple passes (multi-pass). In addition, in a serial type recording device, the head 131 is mounted on a carriage 134 that moves in a predetermined direction, and the head moves in conjunction with the movement of the carriage to eject the ink composition onto the recording medium. This allows deposition in two or more passes (multi-pass). A pass is also called a main scan. A sub-scan is performed to transport the recording medium between passes. In other words, main scans and sub-scans are performed alternately. [Example]

[0071] 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.

[0072] 1. Preparation of textile printing treatment composition Each component was placed in a mixing tank, mixed and stirred, and filtered through a membrane filter to obtain the textile printing treatment liquid composition shown in Tables 1 and 2. The numerical values ​​for each component shown in each example in the tables represent mass % unless otherwise specified.

[0073] Details of the product ingredients used in Tables 1 and 2 are as follows: [pH adjuster] Ammonium phosphate Boric acid Formic acid Sodium bicarbonate [Sugars] Trehalose Lactose Sorbitol sucrose [Moisturizer] urea [Water-soluble organic solvent] 1,3-butylene glycol [High molecular compound] Hydroxyethyl cellulose Sodium Alginate Carboxyvinyl Polymer [Surfactants] Olfine PD-002W (product name, acetylene glycol surfactant, manufactured by Nissin Chemical Industry Co., Ltd.)

[0074] 1.1. Viscosity measurement method The viscosity of the treatment liquid composition prepared as above was measured at 20° C. using a Brookfield viscometer at a rotation speed of 20 rpm for 60 seconds.

[0075] 1.2.Method of measuring pH The pH of the treatment liquid composition prepared as described above was measured using a tabletop pH meter (model number: F-72, manufacturer: HORIBA) at a temperature of 20°C.

[0076] 2. Recording method 2.1. Rotary screen recording method A nylon fabric was coated with the treatment liquid composition and dried. Then, a screen for each color was set on a printing machine, and printing was performed on the fabric coated with the treatment liquid composition. Specifically, a textile printing ink was supplied into the screen, and the screen was rotated, causing the printing ink to pass through the openings in the screen and be transferred to the fabric. A solid pattern was thus printed.

[0077] The ink-adhered fabric was then treated at 102°C for 10 minutes using a high-temperature steamer (HT-3-550 model, manufactured by Tsujii Senki Kogyo Co., Ltd.), and then dried. Excess dye and other components on the fabric were then washed away, yielding a printed fabric.

[0078] As the rotary screen printing ink, Kayacelon Black C-HK (manufactured by Nippon Kayaku Co., Ltd.), which contains a reactive dye, was used to produce printed textiles in Examples 1 to 9 and Comparative Examples 1 to 5, and in Example 4, a printed textile was also produced using Best Acid Blue RL 200% (Orient Giant Dye & Chemical Ind Corp.), which contains an acid dye. The printed textile in Example 4 using an acid dye also achieved excellent results in the following evaluations, similar to those when using a reactive dye.

[0079] 2.2. Inkjet printing method The treatment liquid composition was applied to a nylon fabric and dried. Each printing ink (GENESTA AC / RE) was set in a Monna Lisa inkjet printing machine (Monna Lisa Evo Tre 16-180, manufactured by Seiko Epson Corporation), and a solid pattern was printed on the nylon fabric at 900 × 600 dpi.

[0080] The ink-adhered fabric was then treated at 102°C for 10 minutes using a high-temperature steamer (Tsujii Senki Kogyo Co., Ltd., "HT-3-550 model"), and then dried. Excess dye and other components on the fabric were then washed away, yielding a printed fabric.

[0081] As the inkjet printing ink, CYAN GENESTA AC-H 10L (manufactured by Seiko Epson Corporation), which contains an acid dye, was used to produce printed textiles in Examples 10 to 12 and Comparative Examples 6 to 8, and a printed textile was also produced using BLACK GENESTA RE-N 10L (manufactured by Seiko Epson Corporation), which contains a reactive dye, in Example 12. The printed textile using the reactive dye in Example 12 also achieved excellent results in the following evaluations, similar to those when an acid dye was used.

[0082] 3. Evaluation Method 3.1. Fixability The optical density of the solid patterns on the printed textiles obtained by each of the above methods was measured using a colorimeter i1Pro (manufactured by X-Rite). For Examples 1 to 9 and Comparative Examples 1 to 5, which were performed using the rotary screen method, fixability was evaluated based on the relative optical density values ​​of Examples 1 to 9 and Comparative Examples 1 to 5, where the optical density of Comparative Example 1 was set to 100. For Examples 10 to 12 and Comparative Examples 6 to 8, which were performed using the inkjet method, fixability was evaluated based on the relative optical density values ​​of Examples 10 to 12 and Comparative Examples 6 to 8, where the optical density of Comparative Example 6 was set to 100. (Evaluation criteria) A: Relative optical density is 95 to 100 B: Relative optical density value is 90 or more and less than 95 C: Relative optical density value is 85 or more and less than 90 D: Relative optical density value is less than 85

[0083] 3.2.Color development The color difference between the color sample of each ink used to form the solid pattern and the solid pattern of the printed material obtained by each of the above methods was measured using a colorimeter i1Pro (manufactured by X-Rite). (Evaluation criteria) AA: Color difference (ΔE) less than 0.4 A: Color difference (ΔE) is 0.4 or more and less than 0.8 B: Color difference (ΔE) is 0.8 or more and less than 1.2 C: Color difference (ΔE) is 1.2 or more and less than 2.0 D: Color difference (ΔE) is 2.0 or more

[0084] 3.3. Suppression of color unevenness For the solid patterns of the printed textiles obtained by each of the above methods, the optical density at the four vertices of a 10 cm square was measured using a colorimeter i1Pro (manufactured by X-Rite), and color unevenness was evaluated based on the difference in optical density at the four points. (Evaluation criteria) A: Optical density difference is less than 0.8 B: Optical density difference is 0.8 or more and less than 1.2 C: Optical density difference is 1.2 or more and less than 2.0 D: Optical density difference is 2.0 or more

[0085] 3.4. Nitride content of wastewater The printed fabric obtained as described above before the washing process was washed with water, and the amounts of ammonium salts, nitrates, and other nitrides, including urea, contained in the washed water were quantified. The amount of ammonium salts was quantified by the indophenol method, which utilizes the color development that occurs when nitrates react with phenol in the presence of hypochlorite, in accordance with JIS K0102. The amount of nitrates was quantified by a colorimetric method, in accordance with JIS K0400, utilizing the color development that occurs when nitrates react with sulfosalicylic acid, which is obtained by adding sodium salicylate and sulfuric acid, followed by alkaline treatment. The amount of other nitrides, including urea, was quantified by decomposing the sample with persulfate and sulfuric acid, followed by colorimetric measurement of nitrates, in accordance with the above-mentioned JIS K0400. (Evaluation criteria) A: Total nitride content is 250 ppm or less D: Total nitride content exceeds 250 ppm

[0086] 5. Evaluation Results The compositions of the treatment solutions used in each example and the evaluation results are shown in Tables 1 and 2. Tables 1 and 2 show that by performing printing using a dye printing treatment solution composition containing one or more sugars selected from lactose, sucrose, trehalose, and sorbitol, a polymer compound, and a pH adjuster, and having a pH of 7.0 or less and a viscosity of 2.0 mPa·s or more and 20,000 mPa·s or less, the resulting printed textile has excellent fixability and color development, suppressed color unevenness, and can reduce the nitride content of wastewater, thereby reducing the amount of water used for drainage.

[0087] In the above examples, nylon was used as the fabric, but similar evaluations were also carried out on silk, wool, and polyamide elastomer, and the same effects were obtained in the examples and comparative examples. [Explanation of symbols]

[0088] 10...serial type recording device, 120...conveying section, 130...recording section, 131...inkjet head, 134...carriage, 135...carriage moving mechanism, F...recording medium, S1, S2...main scanning direction, T1...sub-scanning direction.

Claims

1. one or more sugars selected from lactose, sucrose, trehalose, and sorbitol; A polymer compound, and a pH adjuster, The pH is 7.0 or less, The viscosity is 2.0 mPa·s or more and 20,000 mPa·s or less. A processing liquid composition for dye printing.

2. the polymer compound includes one or more selected from the group consisting of guar gum, tamarind gum, xanthan gum, carboxyethyl cellulose, ammonium cellulose, hydroxyethyl cellulose, sodium alginate, acrylic polymer, polyethylene glycol, polyacrylamide, acrylamide copolymer, and dextrin; The dye textile printing treatment liquid composition according to claim 1.

3. the pH adjuster comprises one or more selected from the group consisting of citric acid, ammonium phosphate, ammonium sulfate, boric acid, lactic acid, boronic acid, maleic acid, malic acid, polyacrylic acid, tartaric acid, ammonium tartrate, ammonium lactate, acetic acid, ammonium acetate, ammonium nitrate, oxalic acid, ammonium oxalate, thiosulfuric acid, ammonium thiosulfate, and formic acid; The dye textile printing treatment liquid composition according to claim 1.

4. Attached to a fabric having amide groups, The dye textile printing treatment liquid composition according to claim 1.

5. The adhesive is applied to a fabric containing one or more fibers selected from the group consisting of silk, wool, nylon, and polyamide elastomers. The dye textile printing treatment liquid composition according to claim 1.

6. the content of urea is 50 g / kg or less based on the total amount of the dye printing treatment liquid composition; The dye textile printing treatment liquid composition according to claim 1.

7. used together with an inkjet printing ink containing an acid dye and water and / or an inkjet printing ink containing a reactive dye and water, The dye textile printing treatment liquid composition according to claim 1.

8. Further, the composition contains a coloring material. The dye textile printing treatment liquid composition according to claim 1.

9. A dye printing treatment liquid composition according to any one of claims 1 to 8, a textile printing ink containing an acid dye and water and / or a textile printing ink containing a reactive dye and water, Ink set.

10. a treatment liquid application step of applying the treatment liquid composition for dye textile printing according to any one of claims 1 to 8 to a fabric; an ink applying step of applying a textile printing ink containing an acid dye and water and / or a textile printing ink containing a reactive dye and water to a fabric, Printing recording method.

11. the treatment liquid application step is performed by any one of a spraying method, a padding method, a screen method, and a kiss roll method; The textile printing recording method according to claim 10.

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