Set, cleaning solution, and cleaning method

Abstract

Therefore, the present invention provides an inkjet composition and cleaning solution set that can reduce contamination of the fabric transport member, maintain good transportability of the fabric transport member, and suppress density unevenness during image formation. [Solution] A set of an inkjet composition and a cleaning solution for use in an inkjet textile printing recording device, wherein the cleaning solution contains a glycol ether compound, a polyoxyalkylene alkyl ether compound, and water, the inkjet composition contains resin particles and water, the cleaning solution has a surface tension of 40 mN / m or less at 25°C, and the cleaning solution is used to clean the fabric transport member of the inkjet textile printing recording device.

Description

Technical Field

[0001] The present invention relates to a set, a cleaning liquid, and a cleaning method.

Background Art

[0002] The inkjet method has been tried not only for recording images on paper and the like but also for dyeing fabrics, and various inkjet dyeing methods have been studied. Also, various studies have been made on inkjet recording devices and recording methods applicable to fabric dyeing.

[0003] For example, Patent Document 1 discloses an inkjet recording device equipped with an ink containing a pigment and a resin and a maintenance liquid.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In an inkjet recording device, a belt may be used as a mechanism for conveying a fabric. In this case, ink is ejected and adhered from an inkjet head while the fabric is placed on the belt. Various improvements have been made to such a belt. For example, a method has been proposed in which glue (a base material) is applied to the surface of the belt to convey the fabric medium by adhesion.

[0006] When a glue layer is formed on the belt surface, the adhesive force causes the fabric to adhere to the belt, thereby increasing the stability of the fabric during transport. On the other hand, if the adhesive force of the glue surface decreases, it can become difficult to maintain stable fabric transport. It has been found that this decrease in adhesive force of the glue surface is caused by lint and fluff detached from the fabric, as well as colorants, fixatives, and various functional materials contained in ink that penetrates the fabric and adhere to it, becoming fixed to the glue surface. Furthermore, when the transport of the fabric becomes unstable due to a decrease in the adhesive force of the glue surface, density unevenness may occur during image formation. [Means for solving the problem]

[0007] One aspect of the set according to the present invention is: This is a set of an inkjet composition and a cleaning solution used in an inkjet textile printing recording device. The cleaning solution contains a glycol ether compound, a polyoxyalkylene alkyl ether compound, and water. The inkjet composition contains resin particles and water. The cleaning solution has a surface tension of 40 mN / m or less at 25°C. The cleaning solution is used to clean the fabric transport member of the inkjet printing recording apparatus.

[0008] The cleaning solution according to the present invention is This is a cleaning solution used in inkjet textile printing devices. The cleaning solution contains a glycol ether compound, a polyoxyalkylene alkyl ether compound, and water. The cleaning solution has a surface tension of 40 mN / m or less at 25°C. The fabric transport member of the inkjet printing recording apparatus to which the inkjet composition is attached. It is used for cleaning.

[0009] The cleaning method according to the present invention is A method for cleaning an inkjet printing recording device, This is a method for cleaning the fabric transport component of an inkjet printing recording device. The fabric transport member is configured such that an inkjet composition is applied to the fabric by an inkjet method while the fabric is placed on the fabric transport member. The system includes a fabric conveying member cleaning step, which involves applying a cleaning solution to the fabric conveying member and cleaning the fabric conveying member. [Brief explanation of the drawing]

[0010] [Figure 1] A schematic diagram showing the overall configuration of a recording device to which the set according to this embodiment can be applied. [Figure 2] Table 1 shows the composition of the cleaning solution used in the example set and the evaluation results. [Figure 3] Table 2 shows the composition of the cleaning solution for each comparative example set and the evaluation results. [Figure 4] Table 3 shows the composition of the first ink in the examples and comparative examples. [Figure 5] Table 4 shows the composition of the second inks in the examples and comparative examples. [Figure 6] Table 5 shows the composition of the third ink for the examples and comparative examples. [Figure 7] Table 6 shows the ink set combinations, printing conditions, and evaluation results for the examples and comparative examples. [Modes for carrying out the invention]

[0011] Embodiments of the present invention are described below. The embodiments described below illustrate examples of the present invention. The present invention is not limited in any way to the embodiments described below and includes various modifications that are implemented without changing the gist of the present invention. Not all of the configurations described below are necessarily essential to the present invention.

[0012] 1. Set The set according to this embodiment is a set of an inkjet composition and a cleaning solution used in an inkjet printing recording device. The cleaning solution, inkjet composition, and recording device will be described in detail below in that order. The "set" according to this embodiment (hereinafter also referred to as the "composition set") is not limited to cases where the inkjet composition and the cleaning solution are used for recording using the inkjet recording device and for maintenance (cleaning) of the inkjet recording device, respectively, and is manufactured and sold as an integrated unit. For example, even if they are manufactured and sold independently, they are included in the set if they are intended to be used together or if their combined use is substantially encouraged.

[0013] 1.1. Cleaning solution The cleaning solution according to this embodiment contains a glycol ether compound, a polyoxyalkylene alkyl ether compound, and water. The cleaning solution has a surface tension of 40 mN / m or less at 25°C and is used for cleaning the fabric transport member of an inkjet printing recording device.

[0014] 1.1.1. Glycol ether compounds The cleaning solution contains a glycol ether compound. The presence of the glycol ether compound in the cleaning solution allows the solid and oily components contained in the inkjet composition layer, which adheres to the fabric transport member and dries, to swell and / or dissolve, thereby making it easier to remove these components from the fabric transport member.

[0015] The glycol ether compound is not particularly limited, but examples include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, and ethylene glycol monomethyl ether. Examples include nopropyl ether, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, diethylene glycol mono-t-butyl ether, triethylene glycol monobutyl ether, 1-methyl-1-methoxybutanol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, propylene glycol monobutyl ether, dipropylene glycol monobutyl ether, 3-methoxy-3-methyl-1-butanol, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, diethylene glycol dimethyl ether, and diethylene glycol diethyl ether.

[0016] Among the glycol ether compounds exemplified above, it is preferable to select a compound in the cleaning solution whose surface tension at 25°C is 40 mN / m or less. This makes it easier to adjust the surface tension of the cleaning solution at 25°C to 40 mN / m or less. Furthermore, the surface tension of the glycol ether compound in the cleaning solution at 25°C is more preferably 38 mN / m or less, even more preferably 35 mN / m or less, and even more preferably 33 mN / m or less. The lower limit of the surface tension of the glycol ether compound in the cleaning solution at 25°C is not particularly limited, but is preferably 10 mN / m or more, and more preferably 15 mN / m or more.

[0017] Surface tension can be measured using an automatic surface tension meter CBVP-Z (manufactured by Kyowa Interface Science Co., Ltd.) by checking the surface tension when a platinum plate is wetted with a glycol ether compound in an environment of 25°C.

[0018] Furthermore, when selecting a glycol ether compound to be contained in the cleaning solution, if the glycol ether compound has a surface tension of 40 mN / m or less at 25°C, it is more preferable to select one or more from triethylene glycol monobutyl ether and 3-methoxy-3-methylbutanol. This allows the compound to penetrate between the fabric transport member and the attached inkjet composition layer, causing the solid content of the inkjet composition layer to swell and making it easier to remove the solid content. In addition, when using 3-methoxy-3-methylbutanol, the odor of the cleaning solution can be further reduced.

[0019] The total content of glycol ether compounds contained in the cleaning solution is preferably 1% to 50% by mass, more preferably 2% to 40% by mass, even more preferably 3% to 35% by mass, even more preferably 6% to 30% by mass, and especially preferably 10% to 20% by mass, based on the total amount of the cleaning solution.

[0020] 1.1.2. Polyoxyalkylene alkyl ether compounds The cleaning solution according to this embodiment contains a polyoxyalkylene alkyl ether compound. By containing a polyoxyalkylene alkyl ether compound in the cleaning solution, it is possible to suppress the re-adhesion of solid components contained in the inkjet composition layer, which have been detached from the fabric transport member by the glycol ether compound, to the fabric transport member.

[0021] Examples of polyoxyalkylene alkyl ether compounds include, but are not limited to, compounds represented by the following formula (P). Using such polyoxyalkylene alkyl ether compounds tends to reduce the re-adhesion of solids and oily components to the fabric transport member, and also improve the storage stability of the cleaning solution. R 6 O(C2H4O) w (C3H6O) x (C2H4O) y (C3H6O)z H···(P) (In the above formula (P), R 6 represents an alkyl group having 1 to 20 carbon atoms, preferably an alkyl group having 5 to 15 carbon atoms, more preferably an alkyl group having 10 to 15 carbon atoms. Also, w is a value of 1 to 20, and x, y, and z are independently 0 or values of 1 to 20. Further, w, x, y, and z satisfy 5 ≦ w + x + y + z ≦ 30, preferably 5 ≦ w + x + y + z ≦ 25.)

[0022] The polyoxyalkylene alkyl ether compound is not particularly limited, but specifically, C 12 H 25 O(C2H4O)6(C3H6O)2(C2H4O)6(C3H6O)8H, C 13 H 27 O(C2H4O)6(C3H6O)2(C2H4O)6(C3H6O)8H, C 12 H 25 O(C2H4O) w (C3H6O) x (C2H4O) y (C3H6O) z H (where w + y = 15, x + z = 4), C 13 H 27 O(C2H4O) w (C3H6O) x (C2H4O) y (C3H6O) z H (where w + y = 15, x + z = 4), C 12 H 25 O(C2H4O)8(C3H6O)2(C2H4O)6H, C 13 H 27 O(C2H4O)8(C3H6O)2(C2H4O)6H, C 12 H 25 O(C2H4O) 12 (C3H6O)2(C2H4O) 12 H, C 13 H 27 O(C2H4O) 12 (C3H6O)2(C2H4O) 12H, CH3(CH2)9(CH3)CHO(C2H4O)7(C3H6O) 4.5 H, CH3(CH2) 11 (CH3)CHO(C2H4O)7(C3H6O) 4.5 H, CH3(CH2)9(CH3)CHO(C2H4O)5(C3H6O) 3.5 H, CH3(CH2) 11 (CH3)CHO(C2H4O)5(C3H6O) 3.5 H, C 14 H 29 O(C2H4O) 14 (C3H6O)2H, C 11 H 23 O(C2H4O)8H, C 10 H 21 O(C2H4O) 11 H, and C 12 H 25 O(C2H4O) 15 Examples include H. Among these polyoxyalkylene alkyl ether compounds, polyethylene glycol mono-2-ethylhexyl ether is more preferable.

[0023] Commercially available polyoxyalkylene alkyl ether compounds are not limited to those mentioned above, but specific examples include Neugen DL-0415, Neugen ET-116B, Neugen ET-106A, Neugen DH-0300, Neugen YX-400, Neugen EA-160 (all manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), Emulgen 1108 (a trade name of Kao Corporation), and Newcol 1006 (manufactured by Nippon Emulsifier Co., Ltd.).

[0024] Polyoxyalkylene alkyl ether compounds may be used individually or in combination of two or more.

[0025] The total content of polyoxyalkylene alkyl ether compounds in the cleaning solution is preferably 0.5% to 50% by mass, more preferably 1% to 30% by mass, even more preferably 1.5% to 10% by mass, even more preferably 3% to 20% by mass, and especially preferably 4% to 10% by mass, based on the total amount of the cleaning solution.

[0026] Furthermore, the total content of the polyoxyalkylene alkyl ether compound is preferably 5% by mass or more, preferably 10% by mass or more, and more preferably 15% by mass or more, relative to the total amount of components in the cleaning solution excluding water. Such a content can make the cleaning effect more favorable. Furthermore, the total content of the polyoxyalkylene alkyl ether compound is preferably 90% by mass or less, preferably 80% by mass or less, and more preferably 74% by mass or less, relative to the total amount of components in the cleaning solution excluding water.

[0027] Furthermore, the polyoxyalkylene alcohol content relative to the glycol ether compound mentioned above The content of the kill ether compound is preferably 0.1 to 5 by mass, more preferably 0.1 to 3, and even more preferably 0.3 to 3. A relatively high content of the polyoxyalkylene alkyl ether compound can further improve the cleaning effect.

[0028] 1.1.3.Water The cleaning solution contains water. Examples of suitable water include pure water such as ion-exchanged water, ultrafiltered water, reverse osmosis water, and distilled water, as well as ultrapure water from which ionic impurities have been removed as much as possible. Furthermore, using water sterilized by ultraviolet irradiation or the addition of hydrogen peroxide can reduce the growth of bacteria and fungi when the composition is stored for a long period of time.

[0029] The water content is 30% by mass or more, preferably 40% by mass or more, more preferably 45% by mass or more, and even more preferably 50% by mass or more, based on the total amount of the cleaning solution. When referring to water in the softening solution, this includes, for example, water contained in the organopolysiloxane dispersion used as a raw material and added water. A water content of 30% by mass or more allows the cleaning solution to have a relatively low viscosity. Furthermore, the upper limit of the water content is preferably 90% by mass or less, more preferably 85% by mass or less, and even more preferably 80% by mass or less, based on the total amount of the cleaning solution. In this specification, "aqueous composition" refers to a composition containing 30% by mass or more of water based on the total mass (100% by mass) of the composition.

[0030] 1.1.4. Other ingredients (1) Antifoaming agent The cleaning solution according to this embodiment may further contain an antifoaming agent. When the cleaning solution contains an antifoaming agent, foaming of the cleaning solution can be further suppressed.

[0031] The defoaming agent is not particularly limited, but examples include silicone-based defoaming agents, polyether-based defoaming agents, fatty acid ester-based defoaming agents, and acetylene glycol-based defoaming agents. Commercially available defoaming agents include BYK-011, BYK-012, BYK-017, BYK-018, BYK-019, BYK-020, BYK-021, BYK-022, BYK-023, BYK-024, BYK-025, BYK-028, BYK-038, BYK-044, BYK-080A, BYK-094, BYK-1610, BYK-1615, BYK-1650, BYK-1730, BYK-1770 (manufactured by Bic Chemie Japan Co., Ltd.), Surfinol DF37, DF110D, DF58, DF75, DF220, MD-20, and Envirogem AD01 (manufactured by Evonik Industries). Defoaming agents may be used individually or in combination of two or more types.

[0032] If the cleaning solution contains an antifoaming agent, the amount contained is not particularly limited in relation to the total amount of the cleaning solution, but is preferably, for example, 0.01% by mass or more and 1.0% by mass or less, preferably 0.05% by mass or more and 0.5% by mass or less, and more preferably 0.1% by mass or more and 0.2% by mass or less.

[0033] (2) pH adjuster The cleaning solution according to this embodiment may further contain a pH adjusting agent. The pH adjusting agent is not particularly limited, but appropriate combinations of acids, bases, weak acids, and weak bases are possible. Examples of acids and bases used in such combinations include, as inorganic acids, sulfuric acid, hydrochloric acid, nitric acid, etc., as inorganic bases, lithium hydroxide, sodium hydroxide, potassium hydroxide, potassium dihydrogen phosphate, disodium hydrogen phosphate, potassium carbonate, sodium carbonate, sodium bicarbonate, ammonia, etc., and as organic bases, triethanolamine, trippropanolamine, diethanolamine, monoethanolamine, triisopropanolamine, di Examples include isopropanolamine and trishydroxymethylaminomethane (THAM). As organic acids, adipic acid, citric acid, succinic acid, lactic acid, N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid (BES), 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES), morpholinoethanesulfonic acid (MES), morpholinopropanesulfonic acid (MOPS), carbamoylmethyliminobisacetic acid (ADA), piperazine-1,4-bis(2-ethanesulfonic acid) (PIPES), N-(2-acetamide)-2-aminoethanesulfonic acid (ACES), cholamine hydrochloride, N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid (TES), acetamidoglycine, tricine, glycinamide, bicine, etc. Good's buffer, phosphate buffer, citrate buffer, Tris buffer, etc. may be used.

[0034] (3) Other ingredients The cleaning solution according to this embodiment may contain other components as long as they do not impair its function. Examples of other components include humectants, solvents, surfactants, viscosity modifiers, fungicides, antioxidants, oxygen absorbers, and solubilizers.

[0035] 1.1.5.Surface tension The cleaning solution according to this embodiment has a surface tension of 40 mN / m or less at 25°C. More preferably, the surface tension of the cleaning solution at 25°C is 38 mN / m or less, even more preferably 35 mN / m or less, and even more preferably 33 mN / m or less. The lower limit of the surface tension of the cleaning solution at 25°C is not particularly limited, but is preferably 10 mN / m or more, and more preferably 15 mN / m or more.

[0036] The surface tension of the cleaning solution can be adjusted by selecting the type and / or amount of glycol ether compounds and polyoxyalkylene alkyl ether compounds, the water content, and the selection and amount of other components.

[0037] Surface tension can be measured using an automatic surface tension meter CBVP-Z (manufactured by Kyowa Interface Science Co., Ltd.) by checking the surface tension when a platinum plate is wetted with a cleaning solution in an environment of 25°C.

[0038] 1.1.6. Uses of cleaning solution The cleaning solution according to this embodiment is used to clean the fabric transport member of an inkjet printing recording apparatus. The inkjet printing recording apparatus and the fabric transport member will be described later, but the cleaning solution is used to remove solid and / or oily components formed when the inkjet composition adhering to the surface of the fabric transport member dries. More preferably, it is used to remove solid and / or oily components formed when the inkjet composition adhering to the surface of the glue layer formed on the fabric transport member dries.

[0039] 1.2. Inkjet Compositions The set according to this embodiment includes an inkjet composition. The inkjet composition contains resin particles and water.

[0040] 1.2.1. Resin particles The inkjet composition contains resin particles. The resin particles can improve the adhesion of images to fabrics using the composition. Examples of resin particles include urethane resins, acrylic resins (including styrene-acrylic resins), fluorene resins, polyolefin resins, rosin-modified resins, terpene resins, polyester resins, polyamide resins, epoxy resins, vinyl chloride resins, vinyl chloride-vinyl acetate copolymers, ethylene vinyl acetate resins, silicone-acrylic resins, etc., among which anionic Examples include those that possess sexual characteristics.

[0041] Furthermore, the inkjet composition may contain particles containing organopolysiloxane as resin particles. The particles containing organopolysiloxane are not particularly limited as long as they contain organopolysiloxane, and may be, for example, organopolysiloxane particles themselves, or particles in which organopolysiloxane is dispersed by an emulsifier or the like. The properties of the organopolysiloxane in such particles may be solid or liquid. For example, if oily organopolysiloxane is dispersed in water in particulate form by an emulsifier, the dispersed particles correspond to particles containing organopolysiloxane.

[0042] Resin particles can be used individually or in combination of two or more types.

[0043] Urethane resins are a general term for resins that contain urethane bonds. In addition to urethane bonds, urethane resins may also use polyether-type urethane resins containing ether bonds in the main chain, polyester-type urethane resins containing ester bonds in the main chain, polycarbonate-type urethane resins containing carbonate bonds in the main chain, etc. Furthermore, commercially available urethane resins may be used, such as Superflex 460, 460s, 840, E-4000 (product name, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), Rezamin D-1060, D-2020, D-4080, D-4200, D-6300, D-6455 (product name, manufactured by Dainichi Seika Kogyo Co., Ltd.), Takelac WS-6021, W-512-A-6 (product name, manufactured by Mitsui Chemicals Polyurethane Co., Ltd.), Sankyuar 2710 (product name, manufactured by Lubrizol), Permarin UA-150 (product name, manufactured by Sanyo Chemical Industries, Ltd.), and ETERNACOLL UW series, such as UW-1527 (manufactured by Ube Industries, Ltd.).

[0044] Acrylic resins are a general term for polymers obtained by polymerizing at least one acrylic monomer, such as (meth)acrylic acid or (meth)acrylic acid ester. Examples include resins obtained from acrylic monomers and copolymers of acrylic monomers with other monomers. For example, acrylic-vinyl resins, which are copolymers of acrylic monomers and vinyl monomers, are examples. Examples of vinyl monomers include styrene.

[0045] Acrylic monomers such as acrylamide and acrylonitrile can also be used. For resin emulsions made from acrylic resins, commercially available products may be used, for example, selected from FK-854 (trade name, manufactured by Chuo Rika Kogyo Co., Ltd.), Movinyl 952B, 718A, 6760 (trade name, manufactured by Nippon Synthetic Chemical Industry Co., Ltd.), Nipol LX852, LX874 (trade name, manufactured by Nippon Zeon Co., Ltd.).

[0046] In this specification, the acrylic resin may also refer to the styrene-acrylic resin described later. Furthermore, in this specification, the term (meth)acrylic means at least one of acrylic and methacrylic.

[0047] Styrene-acrylic resins are copolymers obtained from styrene monomers and (meth)acrylic monomers, and examples include styrene-acrylic acid copolymers, styrene-methacrylic acid copolymers, styrene-methacrylic acid-acrylic acid ester copolymers, styrene-α-methylstyrene-acrylic acid copolymers, and styrene-α-methylstyrene-acrylic acid-acrylic acid ester copolymers. Commercially available styrene-acrylic resins may also be used, such as Joncryl 62J, 7100, 390, 711, 511, 7001, 632, 741, 450, 840, 74J, HRC-1645J, 734, 852, 7600, 775, 537J, 1535, PDX-7630A, 352J, 352D, and PDX-714. 5, 538J, 7640, 7641, 631, 790, 780, 7610 (product names, manufactured by BASF), Movinyl 966A, 975N (product names, manufactured by Nippon Synthetic Chemical Industry Co., Ltd.), Vinibran 2586 (manufactured by Nisshin Chemical Industry Co., Ltd.), etc. may also be used.

[0048] Commercially available silicone-acrylic copolymer resins can be used. For example, Nisshin Chemical Industry's Charine series FE-230N, FE-502, E-370, RU-911, R-170, R170S, LC-190, R-170BX, and Toagosei Co., Ltd.'s Cymac US-380. Examples include Cymac US-450, Cymac US-480, Toray Dow Corning Co., Ltd.'s IE-7170, SE1980CLEAR, BY22-826EX, Propylene Oxy LON-MF-40, SABIC Innovative Plastics Japan LLC's Lexan EXL, Idemitsu Kosan Co., Ltd.'s Toughlon Neo, Saiden Chemical Co., Ltd.'s Vansta-S-806, Nippon Synthetic Co., Ltd.'s Movinyl, Toray Industries, Inc.'s Cotax, Ltd., Daito Chemical Industries, Ltd.'s Daitozol 5000SJ, Nippon NSC Co., Ltd.'s Yodozol GH41, Shin-Etsu Chemical Co., Ltd.'s Acrylates / Ethylhexyl Acrylate / Dimethicone Methacrylate Copolymer (product name: KP578), DIC Corporation's Boncoat, Ceranate, and JSR's acrylic silicone emulsions "SIFCLEAR S101" and "SIFCLEAR S102".

[0049] Polyolefin resins have olefins such as ethylene, propylene, and butylene as their structural framework, and known types can be appropriately selected and used. Commercially available olefin resins can be used, for example, Arrowbase CB-1200, CD-1200 (trade names, manufactured by Unitika Ltd.).

[0050] Furthermore, the resin particles may be supplied in the form of an emulsion. Examples of commercially available resin emulsions include Microgel E-1002, E-5002 (product names of Nippon Paint Co., Ltd., styrene-acrylic resin emulsion), Boncoat 4001 (product name of DIC Corporation, acrylic resin emulsion), Boncoat 5454 (product name of DIC Corporation, styrene-acrylic resin emulsion), Polysol AM-710, AM-920, AM-2300, AP-4735, AT-860, and PSASE-4210E (acrylic resin emulsion). ), Polyzol AP-7020 (styrene-acrylic resin emulsion), Polyzol SH-502 (vinyl acetate resin emulsion), Polyzol AD-13, AD-2, AD-10, AD-96, AD-17, AD-70 (ethylene-vinyl acetate resin emulsion), Polyzol PSASE-6010 (ethylene-vinyl acetate resin emulsion) (product name manufactured by Showa Denko Co., Ltd.), Polyzol SAE1014 (product name, styrene-acrylic resin emulsion, manufactured by Nippon Zeon Co., Ltd.), Saibinol SK-200 (product name, acrylic resin emulsion, sa (Manufactured by Iden Chemical Co., Ltd.), AE-120A (product name of JSR Corporation, acrylic resin emulsion), AE373D (product name of E-Tech Co., Ltd., carboxy-modified styrene-acrylic resin emulsion), Seikadine 1900W (product name of Dainichi Seika Kogyo Co., Ltd., ethylene-vinyl acetate resin emulsion), Vinibran 2682 (acrylic resin emulsion), Vinibran 2886 (vinyl acetate-acrylic resin emulsion), Vinibran 5202 (acrylic acetate resin emulsion) (product name of Nisshin Chemical Industry Co., Ltd.), Elitel KA-5071S, KT-8803, KT -9204, KT-8701, KT-8904, KT-0507 (Unitika Corporation product names, polyester resin emulsion), Hi-Tec SN-2002 (Toho Chemical Co., Ltd. product name, polyester resin emulsion), Takelac W-6020, W-635, W-6061, W-605, W-635, W-6021, WS-5100 (Mitsui Chemicals Polyurethane Co., Ltd. product name, urethane resin emulsion), Superflex 870, 800, 150, 420, 460, 470, 610, 700 (Daiichi Kogyo Seiyaku Co., Ltd. product names, urethane resin emulsion),Permarin UA-150 (manufactured by Sanyo Chemical Industries, Ltd., urethane resin emulsion), SunCure 2710 (manufactured by Lubrizol Japan, urethane resin emulsion), NeoRez R-9660, R-9637, R-940 (manufactured by Kusumoto Kasei Co., Ltd., urethane resin emulsion), Adekabon Titer HUX-380, 290K (manufactured by ADEKA Corporation, urethane resin emulsion), Movinyl 966A, Movinyl 7320 (manufactured by Nippon Synthetic Chemical Co., Ltd.), Joncryl 7100, 390, 711, 511, 7001, 632, 741, 450, 840, 74J, HRC-1645J, 734, 852, 7600, 775, 537J, 1535, PDX-7 You may also select and use from among 630A, 352J, 352D, PDX-7145, 538J, 7640, 7641, 631, 790, 780, 7610 (all manufactured by BASF), NK Binder R-5HN (manufactured by Shin Nakamura Chemical Industry Co., Ltd.), Hydran WLS-210 (non-crosslinked polyurethane: manufactured by DIC Corporation), Joncryl 7610 (manufactured by BASF), etc.

[0051] Furthermore, as resin particles, particles (emulsions) of cationic resins (cationic polymers) may be used. Examples of such resin particles include particles of cationic urethane resins, cationic olefin resins, and cationic amine resins.

[0052] As cationic urethane resins, commercially available products can be used, such as Hydran CP-7010, CP-7020, CP-7030, CP-7040, CP-7050, CP-7060, CP-7610 (product names, manufactured by Dainippon Ink and Chemicals, Inc.), Superflex 600, 610, 620, 630, 640, 650 (product names, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), Urethane Emulsion WBR-2120C, WBR-2122C (product names, manufactured by Taisei Fine Chemical Co., Ltd.), Movinyl 7820 (product name: manufactured by Japan Coating Resin Co., Ltd.), etc.

[0053] Cationic olefin resins have olefins such as ethylene and propylene as their structural framework, and known ones can be appropriately selected and used. Cationic olefin resins may also be in an emulsion state dispersed in a solvent such as water or an organic solvent. Commercially available cationic olefin resins can be used, such as Arrowbase CB-1200 and CD-1200 (trade names, manufactured by Unitika Ltd.).

[0054] As cationic amine resins (cationic polymers), any resin having an amino group in its structure is acceptable, and known resins can be appropriately selected and used. Examples include polyamine resins, polyamide resins, and polyallylamine resins. Polyamine resins are resins having an amino group in the main skeleton of the resin. Polyamide resins are resins having an amide group in the main skeleton of the resin. Polyallylamine resins are resins having a structure derived from an allyl group in the main skeleton of the resin.

[0055] Furthermore, examples of cationic polyamine resins include Unisense KHE103L (hexamethylenediamine / epichlorohydrin resin, 1% aqueous solution with a pH of approximately 5.0, viscosity of 20-50 (mPa·s), and solid content of 50% by mass) and Unisense KHE104L (dimethylamine / epichlorohydrin resin, 1% aqueous solution with a pH of approximately 7.0, viscosity of 1-10 (mPa·s), and solid content of 20% by mass) manufactured by Senka Co., Ltd. Furthermore, specific examples of commercially available cationic polyamine resins include FL-14 (manufactured by SNF), Arafix 100, 251S, 255, 255LOX (manufactured by Arakawa Chemical Co., Ltd.), DK-6810, 6853, 6885; WS-4010, 4011, 4020, 4024, 4027, 4030 (manufactured by Seikou PMC Co., Ltd.), and Papiogen P-105 (manufactured by Senka Co., Ltd.). Examples include Sumirez Resin 650(30), 675A, 6615, SLX-1 (manufactured by Taoka Chemical Industry Co., Ltd.), Kachiomaster (registered trademark) PD-1, 7, 30, A, PDT-2, PE-10, PE-30, DT-EH, EPA-SK01, TMHMDA-E (manufactured by Yokkaichi Gosei Co., Ltd.), and Jetfix 36N, 38A, 5052 (manufactured by Satoda Chemical Co., Ltd.).

[0056] Polyamine resins can also be cited as examples of polyamine-based resins. Examples of polyamine resins include polyallylamine hydrochloride, polyallylamineamide sulfate, allylamine hydrochloride / diallylamine hydrochloride copolymer, allylamine acetate / diallylamine acetate copolymer, allylamine acetate / diallylamine acetate copolymer, allylamine hydrochloride / dimethylallylamine hydrochloride copolymer, allylamine / dimethylallylamine copolymer, polydiallylamine hydrochloride, polymethyldiallylamine hydrochloride, polymethyldiallylamineamide sulfate, polymethyldiallylamine acetate, polydiallyldimethylammonium chloride, diallylamine acetate / sulfur dioxide copolymer, diallylmethylethylammonium ethyl sulfate / sulfur dioxide copolymer, methyldiallylamine hydrochloride / sulfur dioxide copolymer, diallyldimethylammonium chloride / sulfur dioxide copolymer, and diallyldimethylammonium chloride / acrylamide copolymer.

[0057] Organopolysiloxanes are siloxane bonds "-Si(R 1 R 2 The structure is ")-O-", and an organic group R is added to it. 1 , R 2 Organopolysiloxanes are a general term for organosilicon compounds to which methyl groups, phenyl groups, vinyl groups, amino groups, etc., are bonded. Depending on their chemical composition and molecular weight, organopolysiloxanes exhibit oily, rubbery, or resinous properties, and are sometimes referred to as silicone oil, silicone rubber, and silicone resin, respectively.

[0058] In the inkjet composition of this embodiment, when organopolysiloxane is used as resin particles, it is more preferable that the organopolysiloxane is an oily compound. When the organopolysiloxane is an oily compound, it is easier to stably disperse it in particulate form in an aqueous matrix by the emulsification treatment described later.

[0059] The molecular structure of organopolysiloxanes is not particularly limited, and examples include linear, branched, cyclic, lattice-like, and cage-like structures. When the molecular structure of an organopolysiloxane is acyclic, the Si atom at the end of the molecule is usually bonded to one or more groups selected from hydrocarbon groups (which may have substituents), alkoxy groups, hydroxyl groups, hydrogen atoms, and halogens.

[0060] Organopolysiloxanes are not particularly limited, but examples include dimethyl silicone, alkyl-modified silicone, amino-modified silicone, epoxy-modified silicone, cyclic silicone, and methylphenyl silicone, which can be used individually or in combination of two or more.

[0061] Furthermore, commercially available silicone oils may be used as organopolysiloxanes. Examples include dimethyl silicone oil, methylphenyl silicone oil, methyl hydrogen silicone oil, polyether-modified silicone oil, aralkyl-modified silicone oil, fluoroalkyl-modified silicone oil, long-chain alkyl-modified silicone oil, higher fatty acid ester-modified silicone oil, higher fatty acid amide-modified silicone oil, polyether-long-chain alkyl-aralkyl-modified silicone oil, long-chain alkyl-aralkyl-modified silicone oil, phenyl-modified silicone oil, and polyether-methoxy-modified silicone oil.

[0062] Furthermore, among the organopolysiloxanes exemplified above, nonionic silicones are more preferable. Also, among the organopolysiloxanes exemplified above, unmodified silicones are more preferable. Such organopolysiloxanes are more chemically stable and less likely to cause yellowing of the resulting image.

[0063] Furthermore, it is more preferable that the organopolysiloxane is one or more selected from dimethyl silicone, methylphenyl silicone, and methylhydrogen silicone.

[0064] Examples of commercially available silicone oils include dimethyl silicone (manufactured by Shin-Etsu Chemical Co., Ltd.: KF-96 series), methylhydrogen-type polysiloxane (manufactured by Shin-Etsu Chemical Co., Ltd.: KF-99 series, KF-9901, etc.), methylphenyl silicone (manufactured by Shin-Etsu Chemical Co., Ltd.: KF-50 series, etc.), amino-modified silicone (manufactured by Shin-Etsu Silicone Co., Ltd.: KF-868, etc.), and silicone-branched silicone treatment agents (manufactured by Shin-Etsu Chemical Co., Ltd.: KF-9908, KF-9909, etc.).

[0065] The viscosity of the silicone at 25°C is not particularly limited, but is preferably 1000 mPa·s or less, preferably 50 mPa·s or more, more preferably 500 mPa·s to 900 mPa·s, and even more preferably 600 mPa·s to 700 mPa·s. Furthermore, the viscosity of the base oil when the silicone is emulsified and dispersed is not particularly limited, but the upper limit is preferably 1,000,000 mm. 2 / s or less, more preferably 100,000 mm 2 / s or less, with a lower limit of preferably 10 mm 2 / s or more, more preferably 100mm 2 It is greater than or equal to / s. Base oil viscosity represents the viscosity of the base oil and is a numerical value that measures the magnitude of the internal resistance of the base oil. The higher the base oil viscosity value, the higher the viscosity, and the lower the value, the lower the viscosity of the base oil.

[0066] Organopolysiloxanes may be formulated by emulsifying various surfactants as emulsifiers and forming them into particles. Examples of emulsifiers that can be used include nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, phospholipids, and the like.

[0067] Examples of nonionic surfactants include glycerin fatty acid esters, polyglycerin fatty acid esters, propylene glycol fatty acid esters, sorbitan fatty acid esters, and sorbitol fatty acid esters, as well as alkylene glycol adducts thereof, polyalkylene glycol fatty acid esters, sucrose fatty acid esters, polysorbate 20, polysorbate 60, polysorbate 80, polyoxyalkylene alkyl ethers, polyoxyethylene alkylphenyl ethers, and the like.

[0068] Furthermore, as nonionic surfactants, it is also preferable to use nonionic surfactants such as polyoxyethylene glycerin fatty acid ester, polyglycerin fatty acid sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene phytosterol, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene lanolin, polyoxyethylene lanolin alcohol, polyoxyethylene beeswax derivative, polyoxyethylene alkylamine, polyoxyethylene fatty acid amide, polyoxyethylene alkylphenyl formaldehyde condensate, and polyoxyethylene alkyl ether phosphate (salt).

[0069] Examples of anionic surfactants include alkyl sulfates, polyoxyethylene alkyl sulfates, alkylbenzene sulfons, and α-olefin sulfons. Examples of cationic surfactants include alkyltrimethylammonium chloride, dialkyldimethylammonium chloride, and benzalkonium chloride. Examples of amphoteric surfactants include alkyldimethylaminoacetic acid betaine and alkylamidedimethylaminoacetic acid betaine. Furthermore, naturally derived surfactants may also be used, such as lecithin and lanolin. Examples include phosphorus, cholesterol, and saponins.

[0070] The amount of emulsifier used when emulsifying organopolysiloxane is preferably less than 20% by mass, more preferably 15% by mass or less, and particularly preferably 10% by mass or less, of the total amount of the emulsified composition.

[0071] Furthermore, the average particle size of the emulsified particulate organopolysiloxane particles is preferably 2 μm or less, more preferably 1 μm or less, and more preferably in the range of 0.05 to 0.5 μm.

[0072] The total content of resin particles in the inkjet composition is preferably 1% to 15% by mass, more preferably 2% to 10% by mass, and even more preferably 2.5% to 8% by mass, relative to the total amount of the inkjet composition. When the resin particle content is within the above range, the color development, fixation, scratch resistance, etc., of the inkjet composition attached to the recording medium tend to improve.

[0073] Furthermore, if the inkjet composition contains organopolysiloxane as resin particles, the inkjet composition can function as a softening liquid. That is, if the inkjet composition contains organopolysiloxane as resin particles, the inkjet composition can become a functional liquid that imparts flexibility to the recorded material or image. In this way, it becomes easier to obtain a better texture and color development (higher concentration) of the recorded material, but while this can easily lead to contamination of the fabric transport component, good cleanability can be obtained with a cleaning liquid.

[0074] 1.2.2.Water The inkjet composition according to this embodiment contains water. The amount of water is the same as that of the cleaning solution described above, so its explanation is omitted.

[0075] 1.2.3. Other ingredients The inkjet composition according to this embodiment may also contain the following components.

[0076] (1) Coloring agent The inkjet composition may contain a pigment as a coloring agent, making it a so-called pigment color ink. Examples of pigments contained in the inkjet composition include color pigments such as cyan, yellow, magenta, and black, and spot color pigments such as white and pearl.

[0077] The pigment may be a mixture. The pigment should have excellent storage stability, such as lightfastness, weather resistance, and gas resistance, and from this viewpoint, it is preferable that it be an organic pigment.

[0078] Specifically, the pigments used include azo pigments such as insoluble azo pigments, condensed azo pigments, azo lakes, and chelate azo pigments; polycyclic pigments such as phthalocyanine pigments, perylene and perinone pigments, anthraquinone pigments, quinacridone pigments, dioxane pigments, thioindigo pigments, isoindolinone pigments, and quinophthalone pigments; dye chelates, dye lakes, nitro pigments, nitroso pigments, aniline black, daylight fluorescent pigments, and carbon black. These pigments can be used individually or in combination of two or more. Furthermore, white pigments and luminous pigments may also be used as pigments.

[0079] Examples of pigments, though not limited to them, include the following:

[0080] Examples of black pigments include No. 2300, No. 900, MCF88, No. 33, No.40, No.45, No.52, MA7, MA8, MA100, No.2200B, etc. (all manufactured by Mitsubishi Chemical Corporation), Raven 5750, Raven 5250, Raven 5000, Raven 3500, Raven 1255, Raven 700, etc. (all manufactured by Carbon Columbia), Rega1 400R, Rega1 330R, Rega1 660R, Mogul L, Monarch 700, Monarch 800, Monarch 880, Monarch 900, Monarch 1000, Monarch 1100, Monarch 1300, Monarch 1400, etc. (manufactured by CABOT JAPAN KK), Color Black FW1, Color Black FW2, Color Black FW2V, Color Black FW18, Color Black FW200, Color B1ack S150, Color Black S160, Color Black S170, Printex 35, Printex U, Printex Examples include the V, Printex 140U, Special Black 6, Special Black 5, Special Black 4A, and Special Black 4 (all manufactured by Degussa).

[0081] Examples of yellow pigments include CI Pigment Yellow 1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 16, 17, 24, 34, 35, 37, 53, 55, 65, 73, 74, 75, 81, 83, 93, 94, 95, 97, 98, 99, 108, 109, 110, 113, 114, 117, 120, 124, 128, 129, 133, 138, 139, 147, 151, 153, 154, 167, 172, and 180.

[0082] Examples of magenta pigments include CI Pigment Red 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 21, 22, 23, 30, 31, 32, 37, 38, 40, 41, 42, 48(Ca), 48(Mn), 57(Ca), 57:1, 88, 112, 114, 122, 123, 144, 146, 149, 150, 166, 168, 170, 171, 175, 176, 177, 178, 179, 184, 185, 187, 202, 209, 219, 224, 245, or CI Pigment Violet. Numbers 19, 23, 32, 33, 36, 38, 43, and 50 can be cited.

[0083] Examples of cyan pigments include CI Pigment Blue 1, 2, 3, 15, 15:1, 15:2, 15:3, 15:34, 15:4, 16, 18, 22, 25, 60, 65, 66, and CI Bat Blue 4, 60.

[0084] In addition, pigments other than magenta, cyan, and yellow are not particularly limited, but include, for example, CI Pigment Green 7, 10, CI Pigment Brown 3, 5, 25, 26, and CI Pigment Orange 1, 2, 5, 7, 13, 14, 15, 16, 24, 34, 36, 38, 40, 43, 63.

[0085] Pearl pigments are not particularly limited, but examples include titanium dioxide-coated mica, fish scale foil, and bismuth acid chloride, which are pigments that have a pearly or interference luster.

[0086] The metallic pigments are not particularly limited, but examples include particles made from elements or alloys of aluminum, silver, gold, platinum, nickel, chromium, tin, zinc, indium, titanium, copper, etc.

[0087] Examples of white pigments include metal oxides, barium sulfate, calcium carbonate, and other metal compounds. Examples of materials include titanium dioxide, zinc oxide, silica, alumina, and magnesium oxide. Furthermore, for the white pigment, particles with a hollow structure may be used, and known particles with a hollow structure can be used.

[0088] The pigment is preferably capable of being stably dispersed in a dispersion medium, and for this purpose, a dispersant may be used for dispersion. Examples of dispersants include resin dispersants, and they should be selected from those that can provide good dispersion stability of the pigment in the inkjet composition. In addition, the pigment may be used as a self-dispersing pigment by modifying the surface of the pigment particles by oxidizing or sulfonating the pigment surface with, for example, ozone, hypochlorous acid, or fuming sulfuric acid.

[0089] Examples of resin dispersants (dispersant resins) include (meth)acrylic resins and their salts such as poly(meth)acrylic acid, (meth)acrylic acid-acrylonitrile copolymer, (meth)acrylic acid-(meth)acrylic acid ester copolymer, vinyl acetate-(meth)acrylic acid ester copolymer, vinyl acetate-(meth)acrylic acid copolymer, vinylnaphthalene-(meth)acrylic acid copolymer; styrene-(meth)acrylic acid copolymer, styrene-(meth)acrylic acid-(meth)acrylic acid ester copolymer, styrene-α-methylstyrene-(meth)acrylic acid copolymer, styrene-α-methylstyrene-(meth)acrylic acid copolymer Examples of water-soluble resins include: styrene-based resins and their salts, such as acrylic acid-(meth)acrylic acid ester copolymers, styrene-maleic acid copolymers, and styrene-maleic anhydride copolymers; urethane-based resins and their salts, which are polymer compounds (resins) containing urethane bonds formed by the reaction of isocyanate groups and hydroxyl groups, and which may be linear and / or branched, with or without a crosslinked structure; polyvinyl alcohols; vinylnaphthalene-maleic acid copolymers and their salts; vinyl acetate-maleic acid ester copolymers and their salts; and vinyl acetate-crotonic acid copolymers and their salts. Among these, copolymers of monomers having hydrophobic functional groups and monomers having hydrophilic functional groups, and polymers consisting of monomers having both hydrophobic and hydrophilic functional groups are preferred. The copolymer can be used in any form, such as a random copolymer, a block copolymer, an alternating copolymer, or a graft copolymer.

[0090] Examples of commercially available styrene resin dispersants include X-200, X-1, X-205, X-220, X-228 (manufactured by Seikoh PMC), Nopcospers® 6100, 6110 (manufactured by Sunnopco Corporation), Joncryl 67, 586, 611, 678, 680, 682, 819 (manufactured by BASF), DISPERBYK-190 (manufactured by Bic Chemie Japan Co., Ltd.), N-EA137, N-EA157, N-EA167, N-EA177, N-EA197D, N-EA207D, and E-EN10 (manufactured by Daiichi Kogyo Seiyaku).

[0091] Furthermore, commercially available acrylic resin dispersants include BYK-187, BYK-190, BYK-191, BYK-194N, BYK-199 (manufactured by Big Chemie Co., Ltd.), Aron A-210, A6114, AS-1100, AS-1800, A-30SL, A-7250, and CL-2 (manufactured by Toagosei Co., Ltd.).

[0092] Furthermore, commercially available urethane resin dispersants include BYK-182, BYK-183, BYK-184, BYK-185 (manufactured by Bic Chemi Co., Ltd.), TEGO Disperse710 (manufactured by Evonic Tego Chemi), and Borchi® Gen1350 (manufactured by OMG Borschers).

[0093] The dispersant may be used alone or in combination of two or more types. The total content of the dispersant is preferably 0.1 parts by mass to 30 parts by mass, more preferably 0.5 parts by mass to 25 parts by mass, even more preferably 1 part by mass to 20 parts by mass, and even more preferably 1.5 parts by mass to 15 parts by mass, per 50 parts by mass of pigment. By using a dispersant content of 0.1 parts by mass or more per 50 parts by mass of pigment, the dispersion stability of the pigment can be further enhanced. Furthermore, if the dispersant content is 30 parts by mass or less per 50 parts by mass of pigment, the viscosity of the resulting dispersion can be kept low.

[0094] By using such a resin dispersant as a dispersant, the dispersion and aggregation of pigments are improved, resulting in better dispersion stability and even better image quality.

[0095] The dispersant resin preferably has an acid value, preferably 5 mg KOH / g or more, more preferably 10 to 200 mg KOH / g, and even more preferably 15 to 150 mg KOH / g. Further preferably 20 to 100 mg KOH / g, and even more preferably 25 to 70 mg KOH / g.

[0096] The acid value can be measured by neutralization potentiometric titration in accordance with JIS K0070. For example, the "AT610" manufactured by Kyoto Electronics Manufacturing Co., Ltd. can be used as the titrator.

[0097] When an inkjet composition contains a pigment, the pigment content is preferably 0.3% to 20% by mass, more preferably 0.5% to 15% by mass, relative to the total mass of the inkjet composition. Furthermore, 1% to 10% by mass is preferred, and 2% to 7% by mass is more preferred.

[0098] When an inkjet composition contains a pigment, it becomes a colored inkjet composition. When an inkjet composition is a colored ink composition, the solid content (resin, pigment) tends to be relatively high, which can easily reduce the tackiness of the glue layer of the fabric transport member. However, by using the cleaning solution of this embodiment, it is possible to maintain good transportability of the fabric transport member even when using such a colored inkjet composition.

[0099] On the other hand, if the inkjet composition contains the organopolysiloxane compound described above, the inkjet composition may be substantially free of colorants. In this way, the inkjet composition can function as both a clear ink and a softening liquid. This makes it easier to obtain a better texture and color development (higher concentration) of the recorded material, while it can also easily cause contamination of the fabric transport member, but good cleanability can be obtained with a cleaning liquid. In this way, the inkjet composition can function as a so-called softening liquid or coating liquid, making it easier to obtain a better texture of the recorded material, while it can also easily cause contamination of the fabric transport member, but good cleanability can be obtained with a cleaning liquid.

[0100] When the inkjet composition is a functional liquid containing the organopolysiloxane compound described above, it is preferable that the content of particles containing organopolysiloxane relative to the total solid content of the functional liquid is 90.0% by mass or more. That is, it is preferable that 90.0% by mass or more of the solid content remaining after the functional liquid dries is organopolysiloxane. More preferably, the content of particles containing organopolysiloxane relative to the total solid content in the functional liquid is 95.0% by mass or more, even more preferably 98% by mass or more, and particularly preferably 99.0% by mass or more.

[0101] When the content of organopolysiloxane-containing particles relative to the total solid content in the functional liquid is 90% by mass or more, it tends to be easier to form a coating film with a sufficiently low refractive index, resulting in the formation of images with better color development. Furthermore, it can improve the texture of the recorded material. Additionally, it tends to improve the ejection stability when the processing liquid composition is ejected by an inkjet method.

[0102] In this specification, "substantially free of a certain component" means that the component is present in an amount of 0.1% by mass or less, preferably 0.01% by mass or less, and more preferably 0.001% by mass or less, relative to the total amount of the composition, and more preferably, that the component is not present at all.

[0103] (2) Organic solvents The inkjet composition may contain an organic solvent. Preferably, the organic solvent is water-soluble. One function of the organic solvent is to improve the wettability of the inkjet composition to fabrics and to enhance the moisture retention of the inkjet composition. Furthermore, the organic solvent can also function as a penetrating agent.

[0104] Examples of organic solvents include esters, alkylene glycol ethers, cyclic esters, nitrogen-containing solvents, and polyhydric alcohols. Examples of nitrogen-containing solvents include cyclic amides and acyclic amides. Examples of acyclic amides include alkoxyalkylamides.

[0105] Examples of esters include glycol monoacetates such as ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, and ethylene glycol monobutyl ether acetate, as well as glycol diesters such as ethylene glycol diacetate, diethylene glycol diacetate, and propylene glycol diacetate.

[0106] Examples of cyclic esters include cyclic esters (lactones) such as β-propiolactone, γ-butyrolactone, δ-valerolactone, ε-caprolactone, and β-butyrolactone, as well as compounds in which the hydrogen atoms of the methylene group adjacent to the carbonyl group are substituted with alkyl groups having 1 to 4 carbon atoms.

[0107] Examples of alkoxyalkylamides include 3-methoxy-N,N-dimethylpropionamide, 3-methoxy-N,N-diethylpropionamide, 3-methoxy-N,N-methylethylpropionamide, 3-ethoxy-N,N-dimethylpropionamide, 3-ethoxy-N,N-diethylpropionamide, 3-ethoxy-N,N-methylethylpropionamide, 3-n-butoxy-N,N-dimethylpropionamide, 3-n-butoxy-N,N-diethylpropionamide, and 3-n-butoxy-N,N-methylethylpropionamide.

[0108] Examples of cyclic amides include lactams, such as pyrrolidones including 2-pyrrolidone, 1-methyl-2-pyrrolidone, 1-ethyl-2-pyrrolidone, 1-propyl-2-pyrrolidone, and 1-butyl-2-pyrrolidone.

[0109] Furthermore, it is also preferable to use compounds represented by the following general formula (1) as alkoxyalkylamides.

[0110] R 1 -O-CH2CH2-(C=O)-NR 2 R 3 ...(1)

[0111] In the above equation (1), R 1 R represents an alkyl group having 1 to 4 carbon atoms. 2 and R 3 Each independently represents either a methyl group or an ethyl group. The "alkyl group having 1 to 4 carbon atoms" can be a linear or branched alkyl group, for example, a methyl group, an ethyl group, an n-propyl group, an iso-propyl group, an n-butyl group, a sec-butyl group, an iso-butyl group, or a tert-butyl group. The compound represented by formula (1) above may be used alone or as a mixture of two or more.

[0112] Examples of polyhydric alcohols include 1,2-alkanediols (e.g., ethylene glycol, propylene glycol (also known as propane-1,2-diol), 1,2-butanediol, 1,2-pentanediol, 1,2-hexanediol, 1,2-heptanediol, 1,2-octanediol, and other alkanediols), and polyhydric alcohols other than 1,2-alkanediols (polyols) (e.g., diethylene glycol, dipropylene glycol, 1,3-propanediol, 1,3-butanediol (also known as 1,3-butylene)). Examples include glycols, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 2-ethyl-2-methyl-1,3-propanediol, 2-methyl-2-propyl-1,3-propanediol, 2-methyl-1,3-propanediol, 2,2-dimethyl-1,3-propanediol, 3-methyl-1,3-butanediol, 2-ethyl-1,3-hexanediol, 3-methyl-1,5-pentanediol, 2-methylpentane-2,4-diol, trimethylolpropane, glycerin, etc.

[0113] Polyhydric alcohols include alkanediols and polyols. Alkanediols are diols of alkanes having 5 or more carbon atoms. The number of carbon atoms in the alkane is preferably 5 to 15, more preferably 6 to 10, and even more preferably 6 to 8. Preferably, they are 1,2-alkanediols.

[0114] Polyols are polyols of alkanes having 4 or fewer carbon atoms, or intermolecular condensates of hydroxyl groups of polyols of alkanes having 4 or fewer carbon atoms. The number of carbon atoms in the alkane is preferably 2 to 3. The number of hydroxyl groups in the polyol molecule is 2 or more, preferably 5 or less, and more preferably 3 or less. When the polyol is an intermolecular condensate as described above, the number of intermolecular condensations is 2 or more, preferably 4 or less, and more preferably 3 or less. Polyhydric alcohols can be used individually or as a mixture of two or more.

[0115] Alkanediols and polyols can primarily function as penetrating solvents and / or moisturizing solvents. However, alkanediols tend to have stronger penetrating properties, while polyols tend to have stronger moisturizing properties.

[0116] Organic solvents may be used individually or in combination of two or more. When an organic solvent is included in an inkjet composition, its content may be 1% by mass or more and 50% by mass or less, preferably 3% by mass or more and 40% by mass or less, and more preferably 5% by mass or more and 30% by mass or less, relative to the total amount of the inkjet composition.

[0117] (3) Surfactants The inkjet composition according to this embodiment may contain a surfactant. The surfactant has the function of adjusting the surface tension of the composition, for example, adjusting the wettability with fabric. Among surfactants, for example, acetylene glycol-based surfactants, silicone-based surfactants, and fluorine-based surfactants can be preferably used.

[0118] Acetylene glycol-based surfactants are not particularly limited, but examples include Surfinol 104, 104E, 104H, 104A, 104BC, 104DPM, 104PA, 104PG-50, 104S, 420, 440, 465, 485, SE, SE-F, 504, 61, DF37, CT111, CT121, CT131, CT136, TG, GA, DF110D (all of the above are product names, Air-P (Manufactured by Products & Chemicals), Olphine B, Y, P, A, STG, SPC, E1004, E1010, PD-001, PD-002W, PD-003, PD-004, EXP.4001, EXP.4036, EXP.4051, AF-103, AF-104, AK-02, SK-14, AE-3 (all product names, manufactured by Nisshin Chemical Industry Co., Ltd.), Acetyleneol E00, E00P, E40, E100 (all Examples include products manufactured by Kawaken Fine Chemicals Co., Ltd.

[0119] While not particularly limited, polysiloxane compounds are preferred as silicone-based surfactants. While not particularly limited, examples of polysiloxane compounds include polyether-modified organosiloxanes. Examples of commercially available polyether-modified organosiloxanes include BYK-306, BYK-307, BYK-333, BYK-341, BYK-345, BYK-346, BYK-348 (all trade names, manufactured by BYK-Chemie Japan), KF-351A, KF-352A, KF-353, KF-354L, KF-355A, KF- Examples include 615A, KF-945, KF-640, KF-642, KF-643, KF-6020, X-22-4515, KF-6011, KF-6012, KF-6015, KF-6017 (all product names, manufactured by Shin-Etsu Chemical Co., Ltd.), Silface SAG002, 005, 503A, 008 (all product names, manufactured by Nisshin Chemical Industry Co., Ltd.).

[0120] As fluorine-based surfactants, it is preferable to use fluorine-modified polymers. Specific examples include BYK-3440 (manufactured by Bic Chemie Japan), Surflon S-241, S-242, S-243 (all trade names, manufactured by AGC Seimi Chemical Co., Ltd.), and Futergent 215M (manufactured by Neos Co., Ltd.).

[0121] When an inkjet composition contains surfactants, multiple types may be included. The amount of surfactants included in an inkjet composition can be 0.1% to 2% by mass, preferably 0.3% to 1.5% by mass, and more preferably 0.4% to 1.0% by mass, based on the total mass of the inkjet composition.

[0122] (4) Flocculants The inkjet composition may contain a flocculant. The flocculant reacts with components such as pigments and resin particles contained in the inkjet composition or other inkjet compositions used together, thereby causing the pigments and resin particles to aggregate. Such aggregation can, for example, enhance the color development of the pigment, improve the fixation of the resin particles, and / or increase the viscosity of the composition. When the inkjet composition is a composition containing a flocculant (hereinafter also referred to as the reaction solution), it is preferable that the reaction solution does not contain pigments. It is also preferable that the reaction solution does not contain resin particles that react with the flocculant. Examples of resin particles that react with the flocculant include anionic resin particles.

[0123] While not particularly limited, examples of flocculants include metal salts, inorganic acids, organic acids, and cationic compounds. Among these, the cationic resin (cationic polymer) particles mentioned above also correspond to the resin particles mentioned above.

[0124] If the inkjet composition contains a flocculant, the inkjet composition can function as a reaction solution.

[0125] The total content of the flocculant in the inkjet composition is not limited, but is preferably 0.1% by mass or more and 15% by mass or less, 1% by mass or more and 10% by mass or less, and more preferably 2% by mass or more and 10% by mass or less, based on the total mass of the composition.

[0126] (5) Other ingredients In addition to the above components, the inkjet composition may also contain the following components.

[0127] (Fatty acid esters) Examples of fatty acid esters include polyoxyethylene monocaprate, polyoxyethylene monocaprylate, polyoxyethylene monolaurate, polyoxyethylene monomyristylate, polyoxyethylene monopalmitate, polyoxyethylene monostearate, polyoxyethylene monooleate, polyoxyethylene monoisostearate, polyoxyethylene monobehenate, polyoxyethylene dicaprate, polyoxyethylene dicaprylate, polyoxyethylene dilaurate, polyoxyethylene dimyristylate, polyoxyethylene dipalmitate, polyoxyethylene distearate, polyoxyethylene dioleate, polyoxyethylene diisostearate, and polyoxyethylene dibehenate.

[0128] (Dialkyldimethylammonium salt) Examples of dialkyldimethylammonium salts include dioreoyloxytrimethylammonium propane chloride (DOTAP), dioctadecenyltrimethylammonium propane chloride (DOTMA), didecyldimethylammonium chloride, didecyldimethylammonium bromide, dicocoyldimethylammonium chloride, dicocoyldimethylammonium bromide, dilauryldimethylammonium chloride, dicetyldimethylammonium chloride, dicetyldimethylammonium bromide, distearyldimethylammonium chloride, distearyldimethylammonium bromide, dioleyldimethylammonium chloride, dibehenyldimethylammonium chloride, dibehenyldimethylammonium bromide, dialkyldimethylammonium chloride, dialkyldimethylammonium bromide, dicocoylethyl hydroxyethylmonium methosulfate, dipalmitoylethyl hydroxyethylmonium methosulfate, and distearoylethyl hydroxyethylmonium methosulfate.

[0129] (Imidazolin-type surfactant) Examples of imidazoline-type surfactants include 1-hydroxyethyl-2-lauryl imidazoline, 1-aminoethyl-2-lauryl imidazoline, 1-hydroxyethyl-2-myristylimidazoline, 1-aminoethyl-2-myristylimidazoline, 1-hydroxyethyl-2-palmitylimidazoline, 1-aminoethyl-2-palmitylimidazoline, 1-hydroxyethyl-2-oleylimidazoline, 1-aminoethyl-2-oleylimidazoline, 1-hydroxyethyl-2-stearylimidazoline, 1-aminoethyl-2-stearylimidazoline, 2-alkyl-N-carboxymethylimidazolinium betaine, 2-alkyl-N-carboxyethylimidazolinium betaine, and 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine.

[0130] (Amphoteric surfactant) Examples of amphoteric surfactants include alkyl carboxybetaine, alkyl sulfobetaine, alkyl hydroxy sulfobetaine, alkylamide betaine, lauryl dimethylamine oxide, and lauric acid amidopropyl dimethylamine oxide.

[0131] (Water-soluble resin) The water-soluble resin is not particularly limited, but examples include carboxymethylcellulose, hydroxyethylcellulose, polyvinylpyrrolidone, and polyethylene oxide. Among these, nonionic resins are more preferred, and polyvinylpyrrolidone is more preferred, for example. Polyvinylpyrrolidone is not limited to homopolymers, and copolymers of vinylpyrrolidone and other monomers may also be used. Examples of commercially available polyvinylpyrrolidone include polyvinylpyrrolidone K-30, K-30W (product names, manufactured by Nippon Shokubai Co., Ltd.), and Pittscol (registered trademark) K-17L, K-30, K-30L. Examples include K-30AL, K-60L, K-30, K-50, K-90, Clejes® K-30, iFTACT® K-30PH (all product names, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), PVP K-30, PVP K-25, PVP K-17 (all product names, manufactured by Ashland).

[0132] (Moisturizer) Examples of humectants, though not particularly limited, include glycerin, 2-pyrrodrin, urea, triethanolamine, propylene glycol, 1-(2-hydroxyethyl)-2-pyrrodrin, trimethylolpropane, triethylene glycol, 1,5-betanediol, triethylene glycol monomethyl ether, and aminocoat. These can be used individually or in combination of two or more.

[0133] (Additives) Additives include pH adjusters, sugars, chelating agents, preservatives / fungicides, rust inhibitors, and others.

[0134] pH adjusters are not particularly limited, but include appropriate combinations of acids, bases, weak acids, and weak bases. Examples of acids and bases used in such combinations include, as inorganic acids, sulfuric acid, hydrochloric acid, nitric acid, etc.; as inorganic bases, lithium hydroxide, sodium hydroxide, potassium hydroxide, potassium dihydrogen phosphate, disodium hydrogen phosphate, potassium carbonate, sodium carbonate, sodium bicarbonate, ammonia, etc.; as organic bases, triethanolamine, diethanolamine, monoethanolamine, trippropanolamine, triisopropanolamine, diisopropanolamine, trishydroxymethylaminomethane (THAM), etc.; and as organic acids, adipic acid, citric acid, succinic acid, lactic acid, N,N-bis(2-hydroxymethylaminomethane). Good's buffer, phosphate buffer, citrate buffer, Tris buffer, etc., containing ethyl (C)-2-aminoethanesulfonic acid (BES), 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES), morpholinoethanesulfonic acid (MES), carbamoylmethyliminobisacetic acid (ADA), piperazine-1,4-bis(2-ethanesulfonic acid) (PIPES), N-(2-acetamide)-2-aminoethanesulfonic acid (ACES), cholamine hydrochloride, N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid (TES), acetamidoglycine, tricine, glycinamide, bicine, etc. may also be used. Furthermore, it is preferable that some or all of these pH adjusting agents include tertiary amines such as triethanolamine and triisopropanolamine, and carboxyl group-containing organic acids such as adipic acid, citric acid, succinic acid, and lactic acid, as this allows for a more stable pH buffering effect.

[0135] Specific examples of sugars include glucose, mannose, fructose, ribose, xylose, arabinose, galactose, aldonic acid, glucitol (sorbitol), maltose, cellobiose, lactose, sucrose, trehalose, and maltotriose.

[0136] Examples of chelating agents include ethylenediaminetetraacetic acid and its salts (such as disodium dihydrogen diacetic acid salt, or nitrilotriacetate, hexametaphosphate, pyrophosphate, or metaphosphate of ethylenediamine).

[0137] Examples of preservatives and fungicides include sodium benzoate, sodium pentachlorophenol, sodium 2-pyridinethiol-1-oxide, sodium sorbate, sodium dehydroacetate, Proxel CRL, Proxel BDN, Proxel GXL, Proxel XL-2, Proxel IB, and Proxel TN (all manufactured by Lonza Japan, trade names), and 4-chloro-3-methylphenol (such as Preventol CMK from Bayer). ) are some examples.

[0138] Examples of rust inhibitors include benzotriazole, acidic sulfites, sodium thiosulfate, ammonium thioglycolate, diisopropylammonium nitrite, pentaerythritol tetranitrate, and dicyclohexylammonium nitrite. Among these, benzotriazole is particularly preferred.

[0139] 1.3. Inkjet Textile Printing Equipment The cleaning solution according to this embodiment is used to clean the fabric transport member of an inkjet printing and recording apparatus. An example of an inkjet printing apparatus (recording apparatus) to which the set according to this embodiment can be applied will be described with reference to Figure 1.

[0140] In Figure 1, the scale of each layer and component has been altered from the actual scale in order to make them recognizable. Also, for the sake of explanation, Figure 1 illustrates the X, Y, and Z axes as three mutually orthogonal axes, with the tip of the arrow indicating the axis direction being the "+ side" and the base being the "- side". The direction parallel to the X axis is called the "X-axis direction", the direction parallel to the Y axis is called the "Y-axis direction", and the direction parallel to the Z axis is called the "Z-axis direction".

[0141] 1.3.1.Overall schematic configuration Figure 1 is a schematic diagram showing the overall configuration of the recording device 100. First, the overall configuration of the recording device 100 will be explained with reference to Figure 1.

[0142] As shown in Figure 1, the recording device 100 includes a fabric transport unit 20, a fabric contact unit 60, a belt support unit 91, a printing unit 40, a heating unit 27, a washing unit 50, and the like. In the recording device 100, at least one of the fabric contact unit 60 and the belt support unit 91 corresponds to a heating unit that heats the endless belt 23. It also has a control unit 1 that controls each of these units. Each part of the recording device 100 is attached to a frame unit 90.

[0143] If a heating section is provided to heat the endless belt, it only needs to be located upstream of the printing section 40 in the conveying direction, and may be located in a different place from the fabric contact section 60 and the belt support section 91. For example, the heating section may be located upstream of the fabric contact section 60 in the conveying direction. With this configuration, the heating section can also dry the endless belt 23 when it gets wet during washing. In addition, the heating section may heat the endless belt without contact.

[0144] The fabric conveying unit 20 conveys the fabric 95 in the conveying direction. The fabric conveying unit 20 includes a fabric supply unit 10, conveying rollers 21, 22, an endless belt 23, a belt rotating roller 24, a belt drive roller 25 as a drive roller, conveying rollers 26, 28, and a fabric retrieval unit 30.

[0145] The fabric is not particularly limited. The materials that make up the fabric are not particularly limited and include, for example, natural fibers such as cotton, linen, wool, and silk; synthetic fibers such as polypropylene, polyester, acetate, triacetate, polyamide, and polyurethane; and biodegradable fibers such as polylactic acid. Blends of these fibers are also acceptable. The fabric may be made from the above-mentioned fibers in any form, such as woven, knitted, or nonwoven fabric, or it may be a blended fabric.

[0146] 1.3.2. Fabric Conveying Section First, the transport path of the fabric 95 from the fabric supply unit 10 to the fabric retrieval unit 30 will be described. In Figure 1, the direction along the direction in which gravity acts is defined as the Z-axis direction, the direction in which the fabric 95 is transported in the printing unit 40 is defined as the +X-axis direction, and the width direction of the fabric 95 that intersects both the Z-axis direction and the X-axis direction is defined as the Y-axis direction. Also, the transport direction of the fabric 95 or the movement of the endless belt 23 will be described. The relative positions along a given direction are also referred to as the "upstream side" and the "downstream side."

[0147] In this specification, the fabric conveying member corresponds to the endless belt 23.

[0148] The fabric supply unit 10 supplies the fabric 95 on which the image is formed to the printing unit 40. The fabric supply unit 10 has a supply shaft 11 and a bearing 12. The supply shaft 11 is formed in a cylindrical or columnar shape and is rotatable in the circumferential direction. The strip-shaped fabric 95 is wound in a roll on the supply shaft 11. The supply shaft 11 is detachably attached to the bearing 12. This allows the fabric 95, which is pre-wound on the supply shaft 11, to be attached to the bearing 12 together with the supply shaft 11.

[0149] The bearing section 12 rotatably supports both axial ends of the supply shaft section 11. The fabric supply section 10 has a rotational drive section (not shown) that rotates the supply shaft section 11. The rotational drive section rotates the supply shaft section 11 in the direction in which the fabric 95 is fed out. The operation of the rotational drive section is controlled by the control section 1. The conveyor rollers 21 and 22 relay the fabric 95 from the fabric supply section 10 to the endless belt 23.

[0150] The endless belt 23 is held between at least two rollers that rotate the endless belt 23, and as the endless belt 23 rotates, it supports the fabric 95 and conveys it in the conveying direction (+X axis direction). Specifically, the endless belt 23 is a seamless belt formed by connecting both ends of a strip-shaped belt without any joints, and is placed between two rollers, the belt rotation roller 24 and the belt drive roller 25. By using a seamless endless belt 23 instead of a belt with joints, more stable conveyance of the fabric can be achieved.

[0151] The endless belt 23 is held under a predetermined tension so that the portion between the belt rotating roller 24 and the belt driving roller 25 is horizontal. An adhesive layer 29 for adhering the fabric 95 is applied to the surface (support surface) 23a of the endless belt 23. In other words, the endless belt 23 has an adhesive layer 29 made of adhesive. The adhesive layer 29, also called a glue layer, can adhere the fabric 95 tightly and also allows the fabric 95 to be peeled off.

[0152] The fabric 95 is attached to the endless belt 23 via the adhesive layer 29. The endless belt 23 is supplied from the conveyor roller 22 and supports (holds) the fabric 95, which is in close contact with the adhesive layer 29, at the fabric contact section 60, which will be described later.

[0153] Preferably, the adhesive layer 29 increases in tackiness when heated. By using an adhesive layer 29 whose tackiness increases when heated, the fabric 95 can be adhered well to the adhesive layer. An example of such an adhesive layer 29 is a hot-melt adhesive mainly composed of thermoplastic elastomer SIS (styrene-isoprene-styrene).

[0154] The belt rotating roller 24 and the belt driving roller 25 support the inner circumferential surface 23b of the endless belt 23. Between the belt rotating roller 24 and the belt driving roller 25, there is a contact portion 69, a belt support portion 91, and a platen 46 that support the endless belt 23. The contact portion 69 is located in the region facing the pressing portion 61 (described later) via the endless belt 23, the platen 46 is located in the region facing the printing portion 40 via the endless belt 23, and the belt support portion 91 is located between the contact portion 69 and the platen 46. By supporting the endless belt 23 with the contact portion 69, the belt support portion 91, and the platen 46, vibrations of the endless belt 23 that occur when the endless belt 23 is moved can be suppressed.

[0155] The belt-driven roller 25 rotates the endless belt 23, thereby moving the fabric 95 in the conveying direction. The drive unit for transporting the fabric 95 has a motor (not shown) that rotates the belt drive roller 25. The belt drive roller 25 is located downstream of the printing unit 40 in the transport direction of the fabric 95, and the belt rotation roller 24 is located upstream of the printing unit 40. When the belt drive roller 25 is rotated, the endless belt 23 rotates in conjunction with the rotation of the belt drive roller 25, and the rotation of the endless belt 23 rotates the belt rotation roller 24. The rotation of the endless belt 23 transports the fabric 95 supported by the endless belt 23 in the transport direction (+X axis direction), and an image is formed on the fabric 95 in the printing unit 40, which will be described later.

[0156] In the example shown in Figure 1, the fabric 95 is supported on the side of the endless belt 23's surface 23a facing the printing unit 40 (+Z-axis side), and the fabric 95 is transported together with the endless belt 23 from the belt rotating roller 24 side to the belt driving roller 25 side. On the side of the endless belt 23's surface 23a facing the washing unit 50 (-Z-axis side), only the endless belt 23 moves from the belt driving roller 25 side to the belt rotating roller 24 side.

[0157] The conveyor roller 26 peels the fabric 95 with the image formed on it from the adhesive layer 29 of the endless belt 23. The conveyor rollers 26 and 28 relay the fabric 95 from the endless belt 23 to the fabric retrieval section 30.

[0158] The fabric retrieval unit 30 retrieves the fabric 95 that has been transported by the fabric transport unit 20. The fabric retrieval unit 30 has a winding shaft unit 31 and a bearing unit 32. The winding shaft unit 31 is formed in a cylindrical or columnar shape and is rotatable in the circumferential direction. The strip-shaped fabric 95 is wound onto the winding shaft unit 31 in a roll shape. The winding shaft unit 31 is detachably attached to the bearing unit 32. As a result, the fabric 95 wound onto the winding shaft unit 31 can be removed together with the winding shaft unit 31.

[0159] The bearing section 32 rotatably supports both ends of the winding shaft section 31 in the axial direction. The fabric retrieval section 30 has a rotational drive section (not shown) that rotates the winding shaft section 31. The rotational drive section rotates the winding shaft section 31 in the direction in which the fabric 95 is wound. The operation of the rotational drive section is controlled by the control section 1.

[0160] Next, we will describe the heating section, printing section 40, heating unit 27, and washing unit 50, which are located along the fabric transport section 20.

[0161] 1.3.3. Heating section It is preferable that a heater for heating the endless belt 23 is provided in at least one of the contact portion 69 and the belt support portion 91. The heater constitutes the heating portion. When a heater is provided in the contact portion 69, the pressing portion 61 can apply pressing force and heat to the endless belt 23, which is preferable in that it can improve the adhesion of the fabric 95 to the endless belt 23. Therefore, when a heater is provided in either the contact portion 69 or the belt support portion 91, it is more preferable to provide it in the contact portion 69.

[0162] The heating section softens the adhesive layer by heating it, thereby improving its adhesion and enhancing the bond between the fabric 95 and the adhesive layer. This suppresses the movement of the fabric 95 on the endless belt 23, resulting in good conveying accuracy.

[0163] A heater is provided on at least one of the contact portion 69 and the belt support portion 91, and when the endless belt 23 is heated, the temperature of the surface 23a of the endless belt 23 is preferably 80 degrees Celsius or lower, more preferably 70 degrees Celsius or lower, and even more preferably 60 degrees Celsius or lower. When the temperature of the surface 23a of the endless belt 23 is within the above range, the reactivity of the resin particles contained in the inkjet composition is suppressed, and the belt can be cleaned more easily. The lower limit of the temperature of the surface 23a of the endless belt 23 is sufficient to allow the adhesive layer to exhibit its adhesive properties, and is preferably 30°C or higher, more preferably 35°C or higher, and even more preferably 40°C or higher. The temperature of the surface 23a of the endless belt 23 can be measured by, for example, a radiant thermometer, a contact thermometer, etc., and is more preferably measured by a radiant thermometer.

[0164] If a heater is provided on at least one of the contact portion 69 and the belt support portion 91, a temperature detection unit (not shown) for detecting the surface temperature of the endless belt 23 may be provided. For example, a thermocouple can be used as the temperature detection unit. As a result, the control unit 1 can raise the endless belt 23 to a predetermined temperature by controlling the heater based on the temperature detected by the temperature detection unit. Note that a non-contact thermometer using infrared radiation may be used as the temperature detection unit.

[0165] 1.3.4.Printing Department The printing unit 40 is positioned above (towards the +Z axis) the position of the endless belt 23 and prints on the fabric 95 placed on the surface 23a of the endless belt 23. The printing unit 40 includes an inkjet head 42, a carriage 43 on which the inkjet head 42 is mounted, and a carriage movement unit 45 that moves the carriage 43 in the width direction (Y axis direction) of the fabric 95 intersecting the transport direction.

[0166] The inkjet head 42 is a means for spraying and adhering an inkjet composition supplied from a liquid cartridge (not shown) onto a fabric 95 from a plurality of nozzles under the control of the control unit 1. The inkjet head 42 is equipped with a plurality of nozzles that eject the inkjet composition and adhere it to the fabric 95 to which the inkjet composition is to be attached. These plurality of nozzles are arranged in a row to form a nozzle row, and the nozzle row is individually arranged corresponding to the inkjet composition. The inkjet composition is supplied to the inkjet head 42 from each liquid cartridge and ejected as droplets from the nozzles by actuators (not shown) inside the inkjet head 42. The ejected droplets of inkjet composition land on the fabric 95, and images, text, patterns, colors, etc. are formed in the printing area of ​​the fabric 95.

[0167] The inkjet compositions referred to herein may be those described above. The types and number of these inkjet compositions can be set as appropriate.

[0168] In the inkjet head 42, a piezoelectric element is used as the actuator, which is the driving means, but the method is not limited to this. For example, an electromechanical conversion element that displaces a diaphragm as an actuator by electrostatic attraction, or an electrothermal conversion element that ejects inkjet composition as droplets by generating bubbles through heating may be used.

[0169] The carriage movement section 45 is located above the endless belt 23 (on the +Z axis side). The carriage movement section 45 has a pair of guide rails 45a and 45b that extend along the Y axis. The inkjet head 42 is supported by the guide rails 45a and 45b so as to be able to reciprocate along the Y axis together with the carriage 43.

[0170] The carriage movement unit 45 is equipped with a movement mechanism and a power source (not shown). The movement mechanism can be, for example, a mechanism combining a ball screw and a ball nut, or a linear guide mechanism. Furthermore, the carriage movement unit 45 has a motor (not shown) as a power source for moving the carriage 43 along the guide rails 45a and 45b. Various motors can be used as the motor, such as a stepping motor, servo motor, or linear motor. When the motor is driven by the control unit 1, the inkjet head 42 moves along the Y-axis direction together with the carriage 43. ru.

[0171] 1.3.5. Heating Unit A heating unit 27 may be provided between the transport rollers 26 and 28. The heating unit 27 heats the inkjet composition ejected onto the fabric 95. This tends to allow the reaction of the resin particles contained in the inkjet composition to proceed sufficiently. Sufficient reaction of the resin particles may result in the formation of an image with good friction fastness. The heating unit 27 may also be used for the purpose of drying the fabric 95. The heating unit 27 may include, for example, an IR heater, and by driving the IR heater, the inkjet composition ejected onto the fabric 95 or the inkjet composition itself can be reacted in a short time. This allows the strip-shaped fabric 95 with the image formed on it to be wound onto the winding shaft 31.

[0172] 1.3.6. Washing Unit The cleaning unit 50 is positioned between the belt rotating roller 24 and the belt driving roller 25 in the X-axis direction. The cleaning unit 50 has a cleaning section 51, a pressing section 52, and a moving section 53. The moving section 53 moves the cleaning unit 50 integrally along the floor surface 99 and fixes it in a predetermined position.

[0173] The pressing section 52 is a lifting device composed of, for example, an air cylinder 56 and a ball bush 57, and the cleaning section 51 provided at its upper part comes into contact with the surface 23a of the endless belt 23. The cleaning section 51 is placed between the belt rotating roller 24 and the belt driving roller 25 with a predetermined tension acting on it, and cleans the surface (support surface) 23a of the endless belt 23 as it moves from the belt driving roller 25 toward the belt rotating roller 24 from below (in the -Z axis direction).

[0174] The cleaning unit 51 includes a cleaning tank 54, a cleaning roller 58, and a blade 55. The cleaning tank 54 is a tank for storing a cleaning solution used to clean ink and foreign matter adhering to the surface 23a of the endless belt 23, and the cleaning roller 58 and blade 55 are provided inside the cleaning tank 54. As this cleaning solution, for example, water or a water-soluble solvent (such as an aqueous alcohol solution) can be used, or the cleaning solution according to the embodiment described above may be used.

[0175] As the cleaning roller 58 rotates, cleaning fluid is supplied to the surface 23a of the endless belt 23, and the cleaning roller 58 and the endless belt 23 slide against each other. This removes inkjet composition and fibers from the fabric 95 that are attached to the endless belt 23.

[0176] The blade 55 can be made of a flexible material such as silicone rubber. The blade 55 is located downstream of the cleaning roller 58 in the conveying direction of the endless belt 23. The sliding motion between the endless belt 23 and the blade 55 removes any remaining cleaning liquid from the surface 23a of the endless belt 23.

[0177] Such a recording device 100 makes it possible to record on fabric using an inkjet composition.

[0178] 1.4. Effects and Effects In the recording device 100 described above, the inkjet composition is applied to the fabric 95 while the fabric 95 is in close contact with the adhesive layer 29. The inkjet composition used in the recording device 100 is required to have the property of wetting and spreading on the fabric 95 in order to ensure opacity with a small amount of ink droplets. When the inkjet composition is applied to the fabric 95, penetration and permeation occur. It is easy for ink to penetrate (especially mesh fabrics, which already have holes and are easily penetrated). Also, if the fabric 95 contains synthetic fibers, the fibers themselves do not easily absorb ink, so the inkjet composition may pass directly to the back side. Furthermore, if the fabric 95 is a thin plain weave fabric, gaps are easily created because the fibers are thin threads. Thus, although the degree of penetration / penetration differs depending on the type of fiber and fabric, if the inkjet composition penetrates the fabric 95, it may adhere to the fabric transport member (adhesive layer 29).

[0179] When the inkjet composition penetrates the fabric 95, the resin and oily components of the inkjet composition, which contain resin particles, become fixed on the fabric transport member (adhesive layer 29), contaminating the fabric transport member. This reduces the transportability of the fabric transport member (for example, the adhesive strength of the glue layer (adhesive layer 29)), which can result in uneven density during image formation (for example, fabric lifting or fluttering, and the appearance of stain-like marks (mottled differences in density)). Additionally, lint and fuzz detached from the fabric 95 may become fixed on the fabric transport member, potentially causing stains.

[0180] In the recording device 100, the cleaning unit 50 cleans the adhesive layer 29. However, if the cleaning solution is not the cleaning solution according to the present embodiment described above, the removal of solid and oily components adhering to the adhesive layer 29 may be insufficient. Furthermore, if the cleaning solution of the cleaning unit 50 is not the cleaning solution according to the present embodiment described above, damage to the adhesive layer 29 (for example, detachment of the adhesive layer 29 from the belt substrate) may occur.

[0181] However, with the cleaning solution and inkjet composition set of this embodiment, even when an adhesive layer 29 is provided to facilitate fixing the fabric to the fabric transport member, it is possible to suppress the detachment of the adhesive layer 29, reduce contamination of the fabric transport member, maintain good transportability of the fabric transport member (adhesion due to the adhesive layer 29 (glue)), and suppress density unevenness during image formation.

[0182] According to the cleaning solution and inkjet composition set of this embodiment, the cleaning solution contains a glycol ether compound and has a surface tension of 40 mN / m or less at 25°C. This allows the cleaning solution to penetrate between the fabric transport member and the attached inkjet composition layer, swelling or dissolving the solid and oily components of the inkjet composition layer, making them easier to remove. Furthermore, the inclusion of a polyoxyalkylene alkyl ether compound in the cleaning solution disperses the removed solid and oily components, suppressing re-adhesion. As a result, damage to the fabric transport member (glue detachment) is suppressed, contamination of the fabric transport member is reduced, the transportability of the fabric transport member (glue adhesion) is maintained well, and density unevenness during image formation is suppressed.

[0183] 2. Cleaning solution As described above, the cleaning solution according to this embodiment is a cleaning solution used in an inkjet textile printing recording apparatus. The cleaning solution contains a glycol ether compound, a polyoxyalkylene alkyl ether compound, and water. The cleaning solution has a surface tension of 40 mN / m or less at 25°C and is used to clean the fabric transport member of the inkjet textile printing recording apparatus to which an inkjet composition is attached.

[0184] The cleaning solution of this embodiment contains a glycol ether compound and has a surface tension of 40 mN / m or less at 25°C. Therefore, it penetrates between the fabric transport member and the attached inkjet composition layer, causing the solid components of the inkjet composition layer to swell and making them easier to remove. Furthermore, the inclusion of a polyoxyalkylene alkyl ether compound disperses the removed solid components and suppresses their re-adhesion. As a result, damage to the fabric transport member (delamination of glue) is suppressed, contamination of the fabric transport member is reduced, the transportability of the fabric transport member (adhesion of glue) is maintained well, and density unevenness during image formation is suppressed.

[0185] 3. Cleaning method The cleaning method according to this embodiment is a cleaning method for an inkjet printing recording apparatus, and is a cleaning method for a fabric transport member of an inkjet printing recording apparatus, wherein an inkjet composition is attached to the fabric by an inkjet method while the fabric is placed on the fabric transport member, and the method includes a fabric transport member cleaning step of applying a cleaning solution to the fabric transport member and cleaning the fabric transport member.

[0186] In the fabric conveying member cleaning process, a cleaning solution is applied to the fabric conveying member to clean it. The method of applying the cleaning solution to the fabric conveying member is not particularly limited. For example, one method is to soak a clean cloth or nonwoven fabric with the cleaning solution and apply the cloth or nonwoven fabric to the fabric conveying member to apply the cleaning solution, or to spray the cleaning solution onto the fabric conveying member using a spray nozzle or spray bottle. Alternatively, the cleaning solution of this embodiment may be applied to the fabric conveying member from the cleaning tank 54 of the recording device 100, or, although not shown, the fabric conveying member may be immersed in the cleaning solution of this embodiment.

[0187] Furthermore, in the fabric conveying member cleaning process, the fabric conveying member may be cleaned by friction with a cloth, nonwoven fabric, brush, etc., while the cleaning solution is applied to the fabric conveying member. When cleaning by friction in the fabric conveying member cleaning process, it is also preferable to use polyester nonwoven fabric or nylon fabric as the cleaning cloth.

[0188] According to the cleaning method of this embodiment, the cleaning solution contains a glycol ether compound and has a surface tension of 40 mN / m or less at 25°C. This allows the cleaning solution to penetrate between the fabric transport member and the attached inkjet composition layer, swelling and detaching the solid and oily components of the inkjet composition layer. Furthermore, the inclusion of a polyoxyalkylene alkyl ether compound in the cleaning solution disperses the detached solids and suppresses re-adhesion. As a result, damage to the fabric transport member (delamination of glue) is suppressed, contamination of the fabric transport member is reduced, the transportability of the fabric transport member (adhesion of glue) is maintained well, and density unevenness during image formation is suppressed.

[0189] 4. Examples and Comparative Examples The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples. Hereinafter, "parts" and "%" refer to mass unless otherwise specified. Unless otherwise specified, evaluations were performed in an environment of 25°C and 40.0% relative humidity.

[0190] 4.1. Preparation of each composition (1) Preparation of the washing solution The cleaning solutions for each example were prepared using the compositions and proportions shown in Tables 1 and 2. Each material was mixed according to the composition shown in the table, and thoroughly stirred to obtain the cleaning solution. The numerical values ​​represent the concentration of the active ingredient, the unit of the numerical value is mass%, and the total is 100.0 mass%.

[0191] (2) Preparation of inkjet composition Inkjet compositions were prepared using the compositions and proportions shown in Tables 3 to 5. The first ink shown in Table 3 is an inkjet composition corresponding to a reaction solution containing a cationic acrylic resin as a flocculant. The second ink shown in Table 4 is a color inkjet composition containing polycarbonate-based polyurethane, which is a resin emulsion, and a pigment as resin particles. The third ink shown in Table 5 is an inkjet composition corresponding to a flexible liquid containing a cationic silicone oil emulsion as resin particles. Each material was mixed according to the compositions shown in the tables and thoroughly stirred to obtain the inkjet compositions. The values ​​represent solid content concentrations, the unit of measurement is mass%, and the total is 100.0 mass%.

[0192] (3) Ink set Table 6 shows the ink sets of the inkjet compositions used in the evaluation of the examples and comparative examples. Note that the ink sets shown in Table 6 are ink sets of the inkjet compositions and do not correspond to the sets of cleaning solution and inkjet compositions in the embodiments described above.

[0193] The abbreviations and product names shown in Tables 1 to 6 are explained below. • Newcol 1006: Polyoxyalkylene alkyl ether (manufactured by Nippon Emulsifier Co., Ltd.) • BYK-028: Antifoaming agent (manufactured by Bic Chemie Japan Co., Ltd.) • Orphine E1010: Acetylene glycol-based surfactant (manufactured by Nisshin Chemical Industry Co., Ltd.)

[0194] • Anionic self-dispersing pigments: were manufactured as follows. 500g of raw carbon black powder prepared by the furnace method (primary particle size = 18nm, BET specific surface area = 180m²) 2A solution containing self-dispersing carbon black was added to 3750g of deionized water (186mL / g, DBP absorption rate = 186mL / 100g) and heated to 45°C while stirring with a dissolver. Then, while grinding with a sand mill using 0.8mm diameter zirconia beads, 30000g of an aqueous solution of sodium hypochlorite (effective chlorine concentration = 12%) was added dropwise at 45°C for 3.5 hours. Grinding was continued with the sand mill for 30 minutes to obtain a reaction solution containing self-dispersing carbon black. This reaction solution was filtered through a 400-mesh wire mesh to separate the zirconia beads and unreacted carbon black from the reaction solution. A 5% aqueous solution of potassium hydroxide was added to the separated reaction solution to adjust the pH to 7.5. Desalting and purification were performed using an ultrafiltration membrane until the conductivity of the solution was 1.5mS / cm. Further desalting and purification were performed using an electrodialysis machine until the conductivity of the solution was 1.0mS / cm. The solution was concentrated until the concentration of self-dispersing carbon black reached 17% by mass. This concentrate was subjected to a centrifuge to remove coarse particles and filtered through a 0.6 μm filter. Deionized water was added to the resulting filtrate, and the solution was diluted and dispersed until the concentration of self-dispersing carbon black reached 15% by mass to obtain a self-dispersing pigment dispersion.

[0195] Note that ink3 in Table 5 was prepared as follows. 90 g of amino-modified silicone oil (Shin-Etsu Chemical Co., Ltd. "KF-868", functional group equivalent: 8,800 g / mol), 173.2 g of deionized water, 5.1 g of polyoxyethylene tridecyl ether (Nippon Emulsifier Co., Ltd., Newcol 1310), 25.7 g of 1,2-hexanediol, and 6 g of lactic acid were placed in a beaker. The contents of the beaker were stirred using a homomixer (PRIMIX Corporation, Homomixer MARK II 2.5) at a rotation speed of 2000 rpm and 50°C for 30 minutes, and then allowed to stand for 30 minutes. Next, the contents of the beaker were filtered through a 10 μm membrane filter to obtain 300 g of emulsion containing dispersed oil particles including amino-modified silicone oil. Subsequently, deionized water and glycerin were added and stirred to prepare ink3.

[0196] Tables 1 and 2 show the surface tension of the glycol ether compound, polyoxyalkylene alkyl ether compound, and water individually in the cleaning solution, as well as the surface tension of the cleaning solution. Surface tension was measured using the Wilhelmy method with a platinum plate at 25°C using an automatic surface tensimeter CBVP-Z (manufactured by Kyowa Interface Science Co., Ltd.). Triethanolamine was added to each cleaning solution so that the pH was between 10 and 11. Furthermore, Table 6 shows the evaluation results for color development, bleeding, yellowing, abrasion resistance (dry), abrasion resistance (wet), and texture (shear hardness G) for each ink set.

[0197] 4.2. Ink Set Evaluation Using a modified Evo Tre 16 (manufactured by Seiko Epson Corporation), cotton 1 Printing was performed on a recording medium of 00% white broadcloth (#4000, manufactured by Nisshinbo Inc.) under the conditions described in Table 6. Multiple main scans were performed on the same scanning area to form a 20cm x 5cm solid pattern image on the recording medium. Subsequently, the fabric was transported 5cm in the sub-scanning direction and printed again on the same scanning area in the same manner. A 20cm x 10cm solid pattern image was formed on the recording medium through these two printings.

[0198] For the belt adhesive, a mixture of 520g of ATR1717 (adhesive, manufactured by ATR) and 1200g of ATR1642 (adhesive, manufactured by ATR) was used. The prepared belt adhesive was applied to the belt according to the procedure in the user's manual to form an adhesive layer. Before starting printing, a push-pull gauge (Nidec, FGP-1) was used to confirm that the adhesive strength of the glue layer was 1.0 N / 50 mm or higher.

[0199] After image formation, the prints for each ink set were prepared by letting them stand for 3 minutes, then heating them in an oven at 160°C for 3 minutes and drying them. A "solid pattern image" refers to an image in which dots are uniformly formed across the entire recording area (main scanning direction × sub-scanning direction: 20cm × 10cm) so that the amount of each ink applied matches the values ​​listed in Table 6.

[0200] <Evaluation of color rendering (black)> For the printed materials obtained by the above printing method, the optical density (OD value, Status E) of the black in the printed image was measured on the surface of the printed image using a colorimeter (FD-7, manufactured by Konica Minolta), and judged according to the following criteria. Judgment criteria SS:OD value of 1.60 or higher S:OD value is 1.51 or higher and less than 1.60. A: OD value is 1.46 or higher, but less than 1.51. B: OD value is 1.43 or higher, and less than 1.46. C:OD value is 1.35 or higher, and less than 1.43.

[0201] <Evaluation of bleeding> For the printing method described above, printed materials were prepared by first allowing the image to form for 60 minutes, then heating them in an oven at 160°C for 3 minutes to dry them. In addition, printed materials prepared after drying using the first ink (reaction solution) and the second ink (ink composition) were prepared as references. The boundary between the printed image area and the unprinted area was observed, and the difference in length (mm) in the sub-scanning direction of the printed image after 60 minutes was determined according to the following criteria compared to the reference printed image. Judgment criteria S: Length difference of 1 mm or less A: Difference in length is more than 1 mm and less than or equal to 3 mm. B: Difference in length is more than 3mm and 7mm or less. C: Length difference greater than 7mm, 12mm or less

[0202] <Evaluation of yellowing> Of the above printing methods, only the third ink (softening solution) is applied to the recording cloth at a rate of 30 g / m². 2A printing cloth was prepared by recording and drying it using the method described above. The surface of the printed image was then measured for L*, a*, and b* using a colorimeter (FD-7, Konica Minolta), and this was used as a sample. In addition, a cloth was prepared by drying it in an oven at 160°C for 3 minutes without printing using the above method, and L*, a*, and b* were measured in the same manner to serve as a reference. The color difference ΔE00 (ΔE2000) of the sample was calculated relative to this reference and judged according to the following criteria. Note that ink set 2 does not use the third ink, so no color difference occurs in this evaluation. Judgment criteria A: Chromatic difference ΔE00 is 2 or less B: Chromatic difference ΔE00 is greater than 2 and less than or equal to 7.

[0203] <Evaluation of abrasion resistance (dry)> For the printed materials created using the above printing method, a clock meter (FI-306, manufactured by Tester Sangyo Co., Ltd.) was used to rub a cotton cloth (white cotton cloth) over the image on the printed material 10 times with a load of 9N. Subsequently, the optical density (OD, Status E) of the black in the printed image was measured using a colorimeter (FD-7, manufactured by Konica Minolta Corporation) in the ink-contaminated areas of the rubbed cloth, and judged according to the following criteria. Judgment criteria S: Black OD is 0.15 or less A: Black OD is above 0.15 and below 0.19 B: Black OD is above 0.19 and below 0.23 C: Black OD is above 0.23 and below 0.33

[0204] <Evaluation of abrasion resistance (wet)> For the printed materials created using the above printing method, a clock meter (FI-306, manufactured by Tester Sangyo Co., Ltd.) was used to rub a cotton cloth (white cotton cloth) moistened with an amount of water equal to the weight of the cloth against the printed image 10 times with a load of 9N. Subsequently, the optical density (OD, Status E) of the black area of ​​the printed image was measured using a colorimeter (FD-7, manufactured by Konica Minolta Corporation) in the ink-contaminated area of ​​the rubbed cloth, and judged according to the following criteria. Judgment criteria S: Black OD is 0.26 or less A: Black OD is above 0.26 and below 0.31 B: Black OD is above 0.31 and below 0.45 C: Black OD is over 0.45

[0205] <Evaluation of texture (shear hardness G)> The texture of the printed fabrics created using the above printing method was evaluated by sensory assessment. Specifically, five random judges were asked to respond with either "The texture is comparable to that of the original fabric" or "The printed fabric is stiff and the texture of the original fabric is compromised," and the fabrics were evaluated according to the following criteria. Judgment criteria A: Three or more judges responded that the fabric's texture was "indistinguishable from the original fabric's texture." B: Two or fewer judges responded that the fabric had "no inferiority to its original texture."

[0206] 4.3. Evaluation of cleaning performance using a set of cleaning solution and inkjet composition The ink sets 1 and 2 described in Tables 1 and 2 respectively produce the Evo Using a modified Tre 16 (manufactured by Seiko Epson Corporation), printing was performed on the recording medium under the conditions described in Table 6. Multiple main scans were performed on the same scanning area to form a 20cm x 5cm solid pattern image on the recording medium (fabric). Subsequently, the fabric was transported 5cm in the sub-scanning direction, and printing was performed again on the same scanning area in the same manner. Through these two printings, a 20cm x 10cm solid pattern image was formed on the recording medium (fabric).

[0207] This printing process was carried out continuously. During this time, pure water was introduced into the cleaning unit of the apparatus, and the glue layer was cleaned with water through the printing process. This process was repeated until the adhesive strength of the glue layer formed on the surface of the fabric conveying member decreased to 0.2 N or less. As the recording medium, a thin 100% cotton fabric, CN 1114 tn (manufactured by TNC, product name 1114 CM80 satin combed yarn, plain weave), was used.

[0208] Furthermore, as the belt adhesive, a mixture of 520g of ATR1717 (adhesive, manufactured by ATR) and 1200g of ATR1642 (adhesive, manufactured by ATR) was used. The prepared belt adhesive was applied to the belt according to the procedure in the user's manual to form an adhesive layer. Before starting printing, a push-pull gauge (Nidec, FGP-1) was used to confirm that the adhesive strength of the glue layer was 1.0 N / 50 mm or more.

[0209] The adhesive strength was measured as follows. Cotton fabric cut into strips (50 x 200 mm) (A. FERRARIO Taffetas, 100% COTTON (124-132 g / m²) 2 The strips of fabric were attached to the belt according to the procedure in the user's manual, and the pressure roller (pressure part) was moved back and forth to firmly press the strips of fabric to the glue. The tension required to peel the pressed strips of fabric vertically upward was measured using a push-pull gauge (Nidec, FGP-1). Measurements were taken at a total of three locations, selecting the most heavily contaminated spot from each of the three areas divided along the width of the belt. The average of the three measurements was taken as the adhesive strength.

[0210] When the adhesive strength of the glue layer decreased to 0.2N or less, printing was stopped, and the glue was cleaned by hand using the cleaning solution for each example.

[0211] The cleaning cloth (wiping material) used in the cleaning process consisted of a nylon fabric as the surface material and a polyester nonwoven fabric as the core material. Specifically, the cleaning cloth was prepared as follows: Polyester nonwoven fabric (manufactured by Shin Kitakyushu Kogyo Co., Ltd., model number SW-7633, 20 cm wide x 80 cm long x 1.5 mm thick, white) was folded into eight layers to create a core material measuring 10 cm wide x 20 cm long. The core material was then wrapped in nylon fabric (manufactured by Towa Sangyo (TOWA), model number Kata, 28 cm wide x 40 cm long), creating a cleaning cloth with nylon fabric as the surface material and polyester nonwoven fabric as the core material.

[0212] The cleaning cloth was impregnated with the cleaning solution for each example listed in Tables 1 and 2 (to the extent that it did not drip), and the area to be cleaned was lightly wiped by hand to moisten it so that it was covered with the cleaning solution. Before the moistened area to be cleaned dried, the cleaning cloth was used to wipe it twice with a little force. At this time, it was visually checked whether dirt or lint was being transferred to the cleaning cloth. When dirt began to be transferred to the cleaning cloth, the adhesive strength of the glue recovered and the stickiness increased, making it difficult to wipe with the cleaning cloth. Therefore, the cleaning cloth was impregnated with a generous amount of cleaning solution, and the wiping work was performed while keeping the area moist at all times to maintain a moist state. During this time, a new side of the cleaning cloth was used as needed. The belt area to be cleaned during the cleaning process was 80 cm wide x 30 cm deep, divided into two sections from the center line of the belt.

[0213] After the belt cleaning was completed, the glue cleaning process was finished after letting it sit for 30 minutes.

[0214] (Evaluation of lint removal) The weight change of the nylon fabric, which is the surface material, was measured before and after the cleaning process to evaluate the performance of removing lint and dirt. Weight measurements were taken after the cleaning agent had been dried and removed from the nylon fabric. The evaluation criteria were as follows: Since the weight of the nylon fabric increases as the lint and dirt transfers to it, a larger weight change indicates higher removal performance. A: Weight increase of 0.05g or more (extremely good level) B: Weight increase of 0.02g or more, but less than 0.05g (good level) C: Weight increase of 0.01g or more, but less than 0.02g (somewhat insufficient level) D: Weight increase of less than 0.01g (insufficient level)

[0215] (Evaluation of pigment and resin stain removal) After the cleaning process, the concentration of contaminants transferred to the polyester nonwoven fabric core material was measured by OD value measurement. The removal performance of pigment and resin contamination was evaluated. For OD value measurement, the average value of 10 measurement points was used, assuming the cleaning agent had been dried and removed from the polyester nonwoven fabric. The evaluation criteria are as follows: A: OD value is 0.3 or more (extremely good level) B: OD value is 0.2 or more and less than 0.3 (good level) C: OD value is 0.1 or more and less than 0.2 (somewhat insufficient level) D: OD value is less than 0.1 (insufficient level)

[0216] (Odor evaluation) In the area within 1 m around during the cleaning operation, the sensory evaluation of odor was conducted. Specifically, as a sensory test by 10 evaluators, the odor judgment was carried out in the following 6 levels, and the judgment was made using the average value. (Odor evaluation score: sensory test) 0: No odor 1: Odor that can be slightly perceived 2: Odor that can be perceived as a weak odor (level that is not unpleasant) 3: Odor that can be perceived as a medium odor (somewhat unpleasant level) 4: Odor that can be perceived as a strong odor (unpleasant level) 5: Intense odor (very unpleasant level) The evaluation criteria are as follows. A: Average value is less than 2 (level where the odor is not bothersome) B: Average value is 2 or more and less than 3 (level where the odor is felt but can be tolerated) C: Average value is 3 or more (level where the odor is strongly felt and unpleasant)

[0217] (Fabric lifting evaluation) After the cleaning operation, a fabric (CN_1114_tn, a 100% thin cotton fabric, manufactured by TNC, trade name 1114 CM80 satin COMBED coma yarn) was attached to the belt, and printing was executed again. Printing was repeated, and the presence or absence of fabric lifting was confirmed until the adhesive force decreased to 0.2 N / 50 mm or less. The evaluation criteria are as follows. A: No occurrence of fabric lifting (good level) B: Fabric lifting occurs only at the end of the fabric width direction (outside the image area) (acceptable level) C: Fabric lifting occurs within the image area (insufficient level) Also, when there was no fabric float in the image area, no density unevenness occurred in the image during image formation. When fabric float occurred in the image area, it was visually confirmed that density unevenness occurred in the image during image formation.

[0218] 4.4. Evaluation Results As shown in Table 1 and Table 2, when a cleaning liquid containing a glycol ether compound, a polyoxyalkylene alkyl ether compound, and water and having a surface tension of 40 mN / m or less at 25°C was used, and an inkjet composition containing resin particles and water was used, that is, in the set of the cleaning liquid and the inkjet composition of each example, it was found that contamination of the fabric conveyance member could be reduced, the conveyance property of the fabric conveyance member could be kept good, and density unevenness during image formation could be suppressed.

[0219] The present invention includes configurations substantially the same as the configurations described in the embodiments, for example, configurations having the same functions, methods, and results, or configurations having the same purposes and effects. The present invention also includes configurations in which non-essential parts of the configurations described in the embodiments are replaced. The present invention also includes configurations having the same operating effects as the configurations described in the embodiments or configurations capable of achieving the same purpose. The present invention also includes configurations in which known technologies are added to the configurations described in the embodiments.

[0220] The following contents are derived from the above-described embodiments and modified examples.

[0221] The set is a set of an inkjet composition and a cleaning liquid used in an inkjet printing and dyeing recording apparatus, the cleaning liquid contains a glycol ether compound, a polyoxyalkylene alkyl ether compound, and water, the inkjet composition contains resin particles and water, the cleaning liquid has a surface tension of 40 mN / m or less at 25°C, the cleaning liquid is used for cleaning the fabric conveyance member of the inkjet printing and dyeing recording apparatus.

[0222] According to this set, the cleaning solution contains a glycol ether compound and has a surface tension of 40 mN / m or less at 25°C. This allows it to penetrate between the fabric transport member and the attached inkjet composition layer, swelling the solid components of the inkjet composition layer and making them easier to remove. Furthermore, the inclusion of a polyoxyalkylene alkyl ether compound in the cleaning solution disperses the removed solid components and suppresses their re-adhesion. As a result, damage to the fabric transport member (e.g., detachment of glue from the belt substrate) is suppressed, contamination of the fabric transport member is reduced, the transportability of the fabric transport member (adhesion of glue) is maintained well, and density unevenness during image formation is suppressed.

[0223] In inkjet compositions used in inkjet textile printing devices are required to have properties that allow them to spread and wet on the recording medium with only a small amount of ink droplets to ensure opacity. However, when inkjet compositions are applied to fabrics, penetration and permeability are likely to occur (especially with mesh fabrics, which already have holes and are therefore easily penetrated). Furthermore, if the fabric contains synthetic fibers, the fibers themselves do not easily absorb ink, so the ink may pass directly to the other side. In addition, if the fabric is a thin plain weave fabric, gaps are likely to form because the fibers are fine threads. Thus, although the degree of penetration / permeability varies depending on the type of fiber and fabric, if the inkjet composition penetrates the fabric, it may adhere to the fabric transport component.

[0224] When an inkjet composition penetrates a fabric, if the inkjet composition contains resin particles, the resin components can become fixed on the fabric transport member, contaminating it and reducing its transportability (e.g., the adhesive strength of the glue). This can lead to problems such as uneven density during image formation (e.g., fabric lifting and stain-like marks (mottled differences in shade)). These problems can also occur when lint or fluff detached from the fabric becomes fixed on the fabric transport member. Furthermore, some cleaning solutions can cause damage to the fabric transport member (e.g., detachment of the glue from the belt substrate).

[0225] According to the above setup, it is possible to easily detach solid matter adhering to the fabric transport member, disperse the detached solid matter, and suppress re-adhesion of solid matter. Therefore, while suppressing damage to the fabric transport member (e.g., glue detachment), contamination of the fabric transport member is reduced, the transportability of the fabric transport member (e.g., glue adhesion) is maintained well, and density unevenness during image formation can be suppressed.

[0226] In the above set, The fabric conveying member may have an adhesive layer on its surface.

[0227] According to this set, even when an adhesive layer such as a glue layer is provided to make it easier to fix the fabric to the fabric conveying member, the detachment of the glue is suppressed while reducing contamination of the fabric conveying member. This allows for maintaining good transportability of the fabric transport component (adhesion due to the adhesive layer (glue)) and suppressing density unevenness during image formation.

[0228] In the above set, The fabric conveying member may be an endless belt.

[0229] In the above set, The glycol ether compound may include a glycol ether compound having a surface tension of 40 mN / m or less at 25°C.

[0230] This kit makes it easy to adjust the surface tension of the cleaning solution to 40 mN / m or less at 25°C.

[0231] In the above set, The glycol ether compound having a surface tension of 40 mN / m or less may include one or more selected from triethylene glycol monobutyl ether and 3-methoxy-3-methylbutanol.

[0232] According to this set, it can penetrate between the fabric conveying member and the attached inkjet composition layer, swell the solid content of the inkjet composition layer, and make it easier for the solid content to fall off. Further, when 3-methoxy-3-methylbutanol is used, the odor can be further reduced.

[0233] In the above set, The polyoxyalkylene alkyl ether compound may be polyethylene glycol mono-2-ethylhexyl ether.

[0234] In the above set, The cleaning liquid may further contain an antifoaming agent.

[0235] According to this set, the foaming of the cleaning liquid can be further suppressed.

[0236] In the above set, The inkjet composition may be a colored inkjet composition containing a pigment.

[0237] According to this set, even when using a colored inkjet composition with a relatively high solid content (resin, pigment), the conveyance performance of the fabric conveying member can be maintained well.

[0238] In the above set, The inkjet composition may be a functional liquid containing organopolysiloxane as the resin particles.

[0239] According to this set, when the inkjet composition contains organopolysiloxane, it is easier to obtain better texture and color development (higher concentration) of the recording material. On the other hand, where the problem of contamination of the fabric conveying member is likely to occur, good detergency can be obtained with the cleaning liquid.

[0240] In the above set, The inkjet composition containing organopolysiloxane may be a functional liquid that substantially does not contain a colorant.

[0241] According to this set, the inkjet composition is a so-called softening liquid or coating liquid, which makes it easier to obtain a better texture for the recorded material, but it is prone to causing contamination of the fabric transport component. However, good cleanability can be obtained by using a cleaning liquid.

[0242] The cleaning solution is This is a cleaning solution used in inkjet textile printing devices. The cleaning solution contains a glycol ether compound, a polyoxyalkylene alkyl ether compound, and water. The cleaning solution has a surface tension of 40 mN / m or less at 25°C. It is used to clean the fabric transport member of the inkjet printing recording apparatus to which the inkjet composition has adhered.

[0243] This cleaning solution contains a glycol ether compound and has a surface tension of 40 mN / m or less at 25°C. Therefore, it penetrates between the fabric transport member and the attached inkjet composition layer, causing the solid components of the inkjet composition layer to swell and making them easier to remove. Furthermore, the inclusion of a polyoxyalkylene alkyl ether compound disperses the removed solid components and suppresses their re-adhesion. As a result, damage to the fabric transport member (glue detachment) is suppressed, contamination of the fabric transport member is reduced, the transportability of the fabric transport member (glue adhesion) is maintained well, and density unevenness during image formation is suppressed.

[0244] The cleaning method is a cleaning method for an inkjet printing recording device, This is a method for cleaning the fabric transport component of an inkjet printing recording device. The fabric transport member is configured such that an inkjet composition is applied to the fabric by an inkjet method while the fabric is placed on the fabric transport member. The system includes a fabric conveying member cleaning step, which involves applying a cleaning solution to the fabric conveying member and cleaning the fabric conveying member.

[0245] According to this cleaning method, the cleaning solution contains a glycol ether compound and has a surface tension of 40 mN / m or less at 25°C. This allows the cleaning solution to penetrate between the fabric transport member and the attached inkjet composition layer, swelling the solid components of the inkjet composition layer and making them easier to remove. Furthermore, the inclusion of a polyoxyalkylene alkyl ether compound in the cleaning solution disperses the removed solid components and suppresses their re-adhesion. As a result, damage to the fabric transport member (delamination of glue) is suppressed, contamination of the fabric transport member is reduced, the transportability of the fabric transport member (adhesion of glue) is maintained well, and density unevenness during image formation is suppressed. [Explanation of Symbols]

[0246] 1...Control unit, 10...Fabric supply unit, 11...Supply shaft unit, 12...Bearing unit, 20...Fabric transport unit, 21...Transport roller, 22...Transport roller, 23...Endless belt, 23a...Surface, 23b...Inner surface, 24...Belt rotating roller, 25...Belt driving roller, 26...Transport roller, 27...Heating unit, 28...Transport roller, 29...Adhesive, 30...Fabric recovery unit, 31...Winding shaft unit, 32...Bearing unit, 40...Printing unit, 42...Inkjet head, 42a, 42b, 42 c, 42d…Nozzle row, 43…Carriage, 45…Carriage movement part, 45a…Guide rail, 45b…Guide rail, 46…Platen, 50…Washing unit, 51…Washing part, 52…Pressing part, 53…Moving part, 54…Washing tank, 55…Blade, 56…Air cylinder, 57…Ball bush, 58…Washing roller, 60…Fabric contact part, 61…Pressing part, 69…Contact part, 90…Frame part, 91…Belt support part, 95…Fabric, 99…Floor surface, 100…Recording device

Claims

1. This is a set of an inkjet composition and a cleaning solution used in an inkjet textile printing recording device. The cleaning solution contains a glycol ether compound, a polyoxyalkylene alkyl ether compound, and water. The inkjet composition contains resin particles and water. The cleaning solution has a surface tension of 40 mN / m or less at 25°C. The cleaning solution is a set used to clean the fabric transport member of the inkjet printing recording apparatus.

2. In claim 1, The fabric transport member is a set having an adhesive layer on its surface.

3. In claim 1, The set wherein the fabric conveying member is an endless belt.

4. In claim 1, The glycol ether compound is a set comprising a glycol ether compound having a surface tension of 40 mN / m or less at 25°C.

5. In claim 4, A set comprising one or more glycol ether compounds selected from triethylene glycol monobutyl ether and 3-methoxy-3-methylbutanol, wherein the glycol ether compound having a surface tension of 40 mN / m or less.

6. In claim 1, The set wherein the polyoxyalkylene alkyl ether compound is polyethylene glycol mono-2-ethylhexyl ether.

7. In claim 1, A set wherein the cleaning solution further contains an antifoaming agent.

8. In claim 1, A set wherein the inkjet composition is a colored inkjet composition containing a pigment.

9. In claim 1, The inkjet composition is a functional liquid containing organopolysiloxane as the resin particles.

10. In claim 9, A set comprising an inkjet composition containing the organopolysiloxane, wherein the inkjet composition is a functional liquid that substantially does not contain a colorant.

11. This is a cleaning solution used in inkjet textile printing devices. The cleaning solution contains a glycol ether compound, a polyoxyalkylene alkyl ether compound, and water. The cleaning solution has a surface tension of 40 mN / m or less at 25°C. The fabric transport member of the inkjet printing recording apparatus to which the inkjet composition is attached. A cleaning solution used for washing.

12. This is a method for cleaning the fabric transport component of an inkjet printing recording device. The fabric transport member is configured such that an inkjet composition is applied to the fabric by an inkjet method while the fabric is placed on the fabric transport member. A method for cleaning an inkjet printing recording apparatus, comprising a fabric conveying member cleaning step of applying a cleaning solution to the fabric conveying member and cleaning the fabric conveying member.

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