JP2006152454A - Pretreating liquid for inkjet printing and inkjet printing method using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pretreating liquid for inkjet printing in which high-concentration color tone can be expressed and oozing of ink is suppressed and to provide an inkjet printing method using the pretreating liquid. <P>SOLUTION: In an inkjet printing method for printing ink onto a fabric by an inkjet system, a pretreating liquid containing at least synthetic anionic polymer, a cationic polymer and a nonionic surfactant is applied to the fabric before applying the ink to the fabric. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pretreatment liquid for ink jet printing which can obtain a dyed product having high image density and excellent bleeding resistance, and an ink jet printing method using the same.

  An ink jet image printing method is a method in which fine droplets of ink are ejected from an ink jet recording head and attached to a target recording medium for printing. The ink jet method is advantageous in that its mechanism is relatively simple, inexpensive, and can form a high-definition and high-quality image.

  Taking advantage of this ink jet system, development is also progressing on image printing on fabric, so-called ink jet textile printing. Unlike conventional textile printing, ink jet textile printing has the advantage that it is not necessary to prepare a plate and can quickly form an image with excellent gradation.

  The method of printing an image on a fabric by an ink jet method is suitable for small-quantity, multi-product production, the burden of waste liquid treatment is reduced, and the delivery time can be shortened compared to conventional printing methods such as screen printing. Etc. have superiority.

  When printing with an ink jet method, the ink viscosity is as low as several mN / m due to ejection restrictions, and the fabric absorbs ink quickly and has insufficient function to fix the ink. From the standpoint of prevention, it is common to perform a dedicated pretreatment on the fabric in advance. These methods are also referred to as off-line pretreatment, and for example, a printing method is disclosed in which a fabric is bonded and printed on a non-stretchable flat support coated with an adhesive (for example, patents). Reference 1). In addition, a specific amount of water-soluble polymer, water-soluble salt, or water-insoluble inorganic fine particle that is substantially non-dyeable to the dye to be dyed on the fabric material is adhered to the fabric as a pretreatment agent, so that Ink jet dyeing fabrics that are supposed to produce clear print images are disclosed (for example, see Patent Document 2). Further, the cellulosic fiber structure is pretreated with an alkaline substance, urea and a nonionic or anionic water-soluble polymer substance by an ink jet dyeing method using a high-temperature reactive dye ink. By doing so, an ink jet dyeing method is disclosed that is capable of dyeing a dark color vividly and without blurring (see, for example, Patent Document 3).

  The purpose of any of the methods disclosed above is to prevent image blurring and to obtain a clear dyed product at a high density, but the color comparable to the dyed product obtained by the conventional printing method (screen printing method). The current situation is that the concentration and clearness have not been achieved. Furthermore, these pretreatments usually apply a pretreatment liquid to the fabric by means such as dipping or coating, but with the recent increase in printing speed, there is a tendency for the blur to increase further. There is a need for further improvement and development of pretreatment formulations.

  On the other hand, various methods and techniques have been disclosed for the purpose of preventing bleeding in printing on fabrics. For example, there is disclosed a method for preventing bleeding by utilizing an interaction between a component in ink and another component applied to the fabric by pretreatment (see, for example, Patent Documents 4 and 5). . These methods are accompanied by an increase in the number of steps that require pretreatment of the fabric, and it is necessary to add a new component (for example, a gelling paste) to the ink, which is a problem in that the storage stability of the ink is significantly impaired. There are many.

  In addition, a technique has been disclosed in which another liquid is prepared in addition to ink and the interaction between the two is used (see, for example, Patent Document 6). Although this method does not require pre-treatment of the fabric, it cannot be put into practical use in that a sufficient anti-bleeding effect cannot be obtained and the storage stability of the ink is significantly impaired.

Therefore, development of an ink jet textile printing method capable of obtaining a high image density and a sharp image has been demanded.
JP-A-63-6183 Japanese Examined Patent Publication No. 63-31594 Japanese Patent Publication No. 4-35351 JP-A-60-81379 JP 2003-55886 A JP 2002-19263 A

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a pretreatment liquid for ink jet printing that can express a high-concentration hue and obtain a highly sharp dyed product with suppressed ink bleeding. It is to provide an ink-jet textile printing method used.

  The above object of the present invention is achieved by the following configurations.

(Claim 1)
An inkjet printing method for printing on a fabric by an inkjet method, wherein a pretreatment liquid containing at least a synthetic anionic polymer, a cationic polymer, and a nonionic surfactant is applied to the fabric before ink is applied to the fabric. An ink-jet printing method comprising:

(Claim 2)
An ink-jet printing method, wherein the fabric is at least one selected from cotton, silk, hemp, rayon fiber, acetate fiber, polyester fiber, and a blend thereof.

(Claim 3)
A pretreatment liquid for ink jet printing applied to a cloth before ink is discharged onto the cloth in an ink jet printing method, characterized by containing a synthetic anionic polymer, a cationic polymer and a nonionic surfactant A pretreatment liquid for inkjet textile printing.

(Claim 4)
A pretreatment liquid for inkjet printing, wherein the fabric is at least one selected from cotton, silk, hemp, rayon fiber, acetate fiber, polyester fiber, and a blend thereof.

  ADVANTAGE OF THE INVENTION According to this invention, the pretreatment liquid for inkjet printing which can express the high density | concentration hue, and can obtain the highly sharp dyeing | staining with which the ink bleeding was suppressed, and the inkjet textile printing method using the same can be provided.

  Hereinafter, the best mode for carrying out the present invention will be described in detail.

  As a result of intensive studies in view of the above problems, the present inventor is an ink-jet printing method in which, after pre-treating a fabric, ink is printed by an ink-jet method, and then a dyed product is produced through a coloring process and a washing process. Before applying the ink to the fabric, the ink is applied to the fabric by an ink jet printing method, wherein a pretreatment liquid containing at least a synthetic anionic polymer, a cationic polymer and a nonionic surfactant is applied to the fabric. In the present invention, it was found that an ink-jet printing method capable of expressing a high-concentration hue and obtaining a highly sharp dyed product with suppressed ink bleeding can be realized even in a state where the applied amount is kept low. It is up to you. Furthermore, by using the pretreatment liquid having the structure defined in the present invention as at least one selected from cotton, silk, hemp, rayon fiber, acetate fiber, polyester fiber and a blend of these as the fabric, It was found that the effect is more effective.

  Details of the present invention will be described below.

  The inkjet printing method of the present invention contains fibers that can be dyed after pretreatment of the fabric using the inkjet printing pretreatment liquid of the present invention (hereinafter also simply referred to as pretreatment liquid). After an image is formed on the existing fabric using an ink containing a coloring material by an inkjet method (ink application step), the fabric to which the ink is applied is heat-treated (coloring step), and the heat-treated fabric is washed. By doing (washing process), the textile printing is completed and a dyed product is obtained.

  First, the pretreatment liquid for inkjet textile printing according to the present invention will be described.

  The pretreatment liquid of the present invention contains at least a synthetic anionic polymer as a paste, and further contains a cationic polymer and a nonionic surfactant.

  The synthetic anionic polymer applicable to the present invention is not particularly limited, but preferred as the synthetic anionic polymer is a polymer having a sulfonic acid group, a carboxyl group, or a phosphoric acid group, and particularly an anion having a sulfonic acid group. Preferred is a conductive polymer. Examples of preferred anionic polymers include sulfonic acid group types such as homopolymers of vinyl sulfonic acid, vinyl sulfonic acids such as vinyl chloride, acrylonitrile, styrene, vinyl acetate and other polymerizable monoolefinic compounds. And copolymers with one or more of such copolymerizable organic monomers. As the type of carboxyl group, acrylic acid or methacrylic acid derivatives such as acrylic acid, alkali metal and ammonium salts of acrylic acid, methacrylic acid, alkali metal salts of methacrylic acid, acrylamide, methacrylamide, N-alkyl substituted amide, N -Crosslinked anionic polymers of aminoalkylamides and corresponding N-alkylaminoalkyl substituted amides, aminoalkyl acrylates, aminoalkyl methacrylamides and N-alkyl substituted aminoalkyl esters of acrylic acid or methacrylic acid. These polymeric compositions may be homopolymers and may be ethylene, propylene, isobutylene, styrene, α-methylstyrene, vinyl acetate, vinyl formate, alkyl ether, acrylonitrile, methacrylonitrile, vinyl chloride, vinylidene chloride. And copolymers with other copolymerizable monomers such as alkyl acrylate, alkyl methacrylate, alkyl maleate, alkyl fumarate, and other copolymerizable olefinic monomers. .

  The cationic polymer applicable to the present invention is not particularly limited, and examples thereof include those conventionally known for inkjet recording paper. For example, “Inkjet Printer Technology and Materials”, page 268 (CMC Corporation). (Published 1998), and polymers described in JP-A-9-193532 and the like. Among them, cationic polymers having a quaternary ammonium base are preferable. For example, a cationic polymer having a guanidyl group described in JP-A-57-64591, dimethyldiallylammonium chloride described in JP-A-59-20696, polyamine sulfones described in JP-A-59-33176, (Meth) acrylic acid alkyl quaternary ammonium salt or (meth) acrylamide alkyl quaternary ammonium salt type cationic polymer disclosed in JP-A-63-115780, JP-A-64-9776 and JP-A-64-75281 Copolymer of dimethylallylammonium chloride and acrylamide, a cationic polymer containing two or more quaternary nitrogen atoms in the repeating unit described in JP-A-3-133686, and a fourth polymer described in JP-A-4-288283 Polyvinylpyrrolidone with secondary ammonium base Cationic polymers obtained by the reaction of secondary amines and epihalohydrins described in JP-A-6-92010 and JP-A-6-234268, polystyrene-type cationic polymers described in International Patent Publication No. 99-64248, JP-A-11- Examples thereof include a cationic polymer composed of a repeating unit having two or more kinds of cationic groups described in No. 348409.

  In addition, the nonionic surfactant applicable to the present invention is not particularly limited, but polyoxyethylene alkyl ethers, polyoxyethylene alkyl phenyl ethers, polyoxyethylene aryl ethers, polyoxyethylene naphthyl ether, Polyoxyethylene polystyryl phenyl ether, polyoxyethylene polyoxypropylene alkyl ether, glycerin fatty acid partial ester, sorbitan fatty acid partial ester, pentaerythritol fatty acid partial ester, propylene glycol mono fatty acid ester, sucrose fatty acid partial ester, polyoxy Ethylene sorbitan fatty acid partial esters, polyoxyethylene sorbitol fatty acid partial esters, polyethylene glycol fatty acid esters, polyglycerin fat Partial esters, polyoxyethylenated castor oil, polyoxyethylene glycerin fatty acid partial esters, fatty acid diethanolamides, N, N-bis-2-hydroxyalkylamines, polyoxyethylene alkylamines, triethanolamine fatty acid esters Specific examples include, for example, polyoxyethylene alkyl ether, polyoxyethylene secondary alcohol ether, polyoxyethylene alkylphenyl ether (for example, Emulgen 911), polyoxyethylene sterol, and the like. Ether, polyoxyethylene lanolin derivative, polyoxyethylene polyoxypropylene alkyl ether (for example, Newpol PE-62), polyoxyethylene glycerin fatty acid ester, Reoxyethylene castor oil, hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, polyethylene glycol fatty acid ester, fatty acid monoglyceride, polyglycerin fatty acid ester, sorbitan fatty acid ester, propylene glycol fatty acid ester, sucrose fatty acid ester , Fatty acid alkanolamide, polyoxyethylene fatty acid amide, polyoxyethylene alkylamine, alkylamine oxide, acetylene glycol, acetylene alcohol and the like.

  Further, in the pretreatment liquid of the present invention, other surfactants can be used in combination as long as the object effects of the present invention are not impaired. For example, as the cationic surfactant, for example, an aliphatic amine salt Aliphatic quaternary ammonium salts, benzalkonium salts, benzethonium chloride, pyridinium salts, imidazolinium salts and the like. Examples of the anionic surfactant include fatty acid soap, N-acyl-N-methylglycine salt, N-acyl-N-methyl-β-alanine salt, N-acyl glutamate, alkyl ether carboxylate, acyl Peptide, alkyl sulfonate, alkyl benzene sulfonate, alkyl naphthalene sulfonate, dialkyl sulfosuccinate, alkyl sulfoacetate, α-olefin sulfonate, N-acylmethyl taurine, sulfated oil, higher alcohol Sulfate, secondary higher alcohol sulfate, alkyl ether sulfate, secondary higher alcohol ethoxy sulfate, polyoxyethylene alkyl phenyl ether sulfate, monoglyculate, fatty acid alkylolamide sulfate, alkyl ether phosphorus acid Examples thereof include ester salts and alkyl phosphate ester salts. Examples of amphoteric surfactants include carboxybetaine type, sulfobetaine type, aminocarboxylate, imidazolinium betaine and the like.

The pretreatment liquid of the present invention may contain a reaction reagent, for example, a divalent or higher metal salt, or a polyamine or a quaternary salt thereof. Examples of the divalent or higher metal salt include calcium, magnesium, strontium, barium, zirconium, and a divalent or more metal cations such as aluminum, chloride ion (Cl ^-), bromide ion (Br ^-), sulfate ion (SO ₄ ^2-), nitrate ion (NO ₃ ^-) And water-soluble metal salts formed from anions such as acetate ion (CH ₃ COO ⁻ ). Examples of the polyamine or quaternary salt thereof used in the present invention include polyethyleneimine, polyallylamine, polyvinylamine, dicyandiamide polyalkylene polyamine condensate, polyalkylene polyamine dicyandiamide ammonium salt condensate, dicyandiamide formalin condensate, epichlorohydrin, dialkylamine addition polymer, diallyl dimethyl ammonium chloride polymer, diallyl dimethyl ammonium chloride-SO ₂ copolymer, polyvinyl imidazole, polyvinyl pyrrolidone, vinyl imidazole copolymers, polyvinyl pyridine, polyamidine, chitosan, cationized starch, vinylbenzyltrimethylammonium Ammonium chloride polymer, (2-methacryloyloxyethyl) trimethylammonium chloride Polymer, dimethylaminoethyl methacrylate polymer, and the like.

  In the pretreatment liquid of the present invention, additives having pH adjusting ability, for example, various inorganic acids and organic acids can be used. Examples of the inorganic acid include acetic acid, hydrochloric acid, sulfuric acid, chlorous acid, nitric acid, nitrous acid, sulfurous acid, phosphorous acid, phosphoric acid, chloric acid, and hypophosphorous acid.

  In the present invention, it is more preferable to adjust the pH of the pretreatment liquid to a desired pH using an organic acid. Examples of organic acids that can be used in the present invention include formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, isovaleric acid, oxalic acid, malonic acid, succinic acid, glutaric acid, maleic acid, fumaric acid, and citracone. Acid, itaconic acid, tricarbaric acid, glycolic acid, thioglycolic acid, lactic acid, malic acid, tartaric acid, citric acid, isocitric acid, gluconic acid, pyruvic acid, oxalacetic acid, diglycolic acid, benzoic acid, phthalic acid, mandelic acid And salicylic acid.

  The pretreatment liquid of the present invention can contain a water-soluble organic solvent, such as polyhydric alcohols (for example, ethylene glycol, glycerin, 2-ethyl-2- (hydroxymethyl) -1,3-propanediol). , Tetraethylene glycol, triethylene glycol, tripropylene glycol, 1,2,4-butanetriol, diethylene glycol, propylene glycol, dipropylene glycol, butylene glycol, 1,6-hexanediol, 1,2-hexanediol, 1, 5-pentanediol, 1,2-pentanediol, 2,2-dimethyl-1,3-propanediol, 2-methyl-2,4-pentanediol, 3-methyl-1,5-pentanediol, 3-methyl -1,3-butanediol, 2-methyl-1,3-pro Diol), amines (eg, ethanolamine, 2- (dimethylamino) ethanol, etc.), monohydric alcohols (eg, methanol, ethanol, butanol, etc.), polyhydric alcohol alkyl ethers (eg, diethylene glycol monomethyl ether, Diethylene glycol monobutyl ether, triethylene glycol monomethyl ether, triethylene glycol monobutyl ether, ethylene glycol monomethyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monobutyl ether, dipropylene glycol monomethyl ether, etc.), 2,2'-thio Diethanol, amides (eg, N, N-dimethylformamide, etc.), heterocycles (2-pyrrolide) Etc.), acetonitrile, and the like.

  In the inkjet textile printing method of the present invention, as a method of applying the pretreatment liquid of the present invention to a fabric, it can be applied by a conventionally known application method, for example, a pad method, a coating method, a spray method, etc. A method of applying a pretreatment liquid to a fabric using an inkjet head can also be used.

  The material constituting the fabric used in the ink jet textile printing method of the present invention is not particularly limited as long as it contains fibers that can be dyed with a colorant. Among them, cotton, silk, hemp, rayon fiber, acetate It is preferably at least one selected from fibers, polyester fibers and blends thereof. Among them, a fabric containing at least polyester fibers is particularly preferable. As the fabric, the above-described fibers may be any form such as a woven fabric, a knitted fabric, and a non-woven fabric. The fabric that can be used in the present invention is preferably 100% of fibers that can be dyed with a coloring material, but a mixed woven fabric or a mixed non-woven fabric can also be used as a textile for printing. Further, the thickness of the yarn constituting the fabric as described above is preferably in the range of 10 to 100d.

  In the case of the inkjet printing method of the present invention, in order to obtain a uniform dyed product, natural impurities (oil, fat, wax, pectin, natural pigment, etc.) adhering to the fabric fiber were used in the fabric production process before image recording. It is desirable to wash away residues of chemicals (such as glue) and dirt. Examples of the cleaning agent used for cleaning include alkalis such as sodium hydroxide and sodium carbonate, surfactants such as anionic surfactants and nonionic surfactants, enzymes, and the like.

  Next, the ink used in the ink jet textile printing method of the present invention will be described.

  The ink in the present invention preferably contains at least a coloring material, a water-soluble organic solvent, and water. Examples of the color material include disperse dyes, reactive dyes, acid dyes, direct dyes, pigments, and oil-soluble dyes. Among these, disperse dyes or pigments are preferably used.

  Specific compounds of the coloring material that are preferably used in the present invention are shown below, but the present invention is not limited to these exemplified compounds.

As a disperse dye preferably used in the present invention,
C. I. Disperse Yellow; 3, 4, 5, 7, 9, 13, 23, 24, 30, 33, 34, 42, 44, 49, 50, 51, 54, 56, 58, 60, 63, 64, 66, 68 71, 74, 76, 79, 82, 83, 85, 86, 88, 90, 91, 93, 98, 99, 100, 104, 108, 114, 116, 118, 119, 122, 124, 126, 135 140, 141, 149, 160, 162, 163, 164, 165, 179, 180, 182, 183, 184, 186, 192, 198, 199, 202, 204, 210, 211, 215, 216, 218, 224 227, 231, 232,
C. I. Disperse Orange; 1, 3, 5, 7, 11, 13, 17, 20, 21, 25, 29, 30, 31, 32, 33, 37, 38, 42, 43, 44, 45, 46, 47, 48 49, 50, 53, 54, 55, 56, 57, 58, 59, 61, 66, 71, 73, 76, 78, 80, 89, 90, 91, 93, 96, 97, 119, 127, 130 139, 142,
C. I. Disperse Red; 1, 4, 5, 7, 11, 12, 13, 15, 17, 27, 43, 44, 50, 52, 53, 54, 55, 56, 58, 59, 60, 65, 72, 73 74, 75, 76, 78, 81, 82, 86, 88, 90, 91, 92, 93, 96, 103, 105, 106, 107, 108, 110, 111, 113, 117, 118, 121, 122 126, 127, 128, 131, 132, 134, 135, 137, 143, 145, 146, 151, 152, 153, 154, 157, 159, 164, 167, 169, 177, 179, 181, 183, 184 , 185, 188, 189, 190, 191, 192, 200, 201, 202, 203, 205, 206, 207, 210, 221, 224, 22 5, 227, 229, 239, 240, 257, 258, 277, 278, 279, 281, 288, 298, 302, 303, 310, 311, 312, 320, 324, 328,
C. I. Disperse Violet; 1, 4, 8, 23, 26, 27, 28, 31, 33, 35, 36, 38, 40, 43, 46, 48, 50, 51, 52, 56, 57, 59, 61, 63 69, 77,
C. I. Disperse Green; 9,
C. I. Disperse Brown; 1, 2, 4, 9, 13, 19,
C. I. Disperse Blue; 3, 7, 9, 14, 16, 19, 20, 26, 27, 35, 43, 44, 54, 55, 56, 58, 60, 62, 64, 71, 72, 73, 75, 79 81, 82, 83, 87, 91, 93, 94, 95, 96, 102, 106, 108, 112, 113, 115, 118, 120, 122, 125, 128, 130, 139, 141, 142, 143 146, 148, 149, 153, 154, 158, 165, 167, 167: 1, 171, 173, 174, 176, 181, 183, 185, 186, 187, 189, 197, 198, 200, 201, 205 , 207, 211, 214, 224, 225, 257, 259, 267, 268, 270, 284, 285, 287, 288, 291, 29 3, 295, 297, 301, 315, 330, 333,
C. I. Disperse Black 1, 3, 10, 24,
Etc.

  In the ink-jet printing method using disperse dyes, when developing colors at high temperatures, disperse dyes with good sublimation fastness are selected because they do not cause contamination by dye sublimation on the white background of machines and fabrics. It is preferable.

As a reactive dye preferably used in the present invention,
C. I. Reactive Yellow; 2, 3, 7, 15, 17, 18, 22, 23, 24, 25, 27, 37, 39, 42, 57, 69, 76, 81, 84, 85, 86, 87, 92, 95 , 102, 105, 111, 125, 135, 136, 137, 142, 143, 145, 151, 160, 161, 165, 167, 168, 175, 176,
C. I. Reactive Orange; 1, 4, 5, 7, 11, 12, 13, 15, 16, 20, 30, 35, 56, 64, 67, 69, 70, 72, 74, 82, 84, 86, 87, 91 , 92, 93, 95, 107,
C. I. Reactive Red; 2, 3, 3: 1, 5, 8, 11, 21, 22, 23, 24, 28, 29, 31, 33, 35, 43, 45, 49, 55, 56, 58, 65, 66 78, 83, 84, 106, 111, 112, 113, 114, 116, 120, 123, 124, 128, 130, 136, 141, 147, 158, 159, 171, 174, 180, 183, 184, 187 , 190, 193, 194, 195, 198, 218, 220, 222, 223, 226, 228, 235,
C. I. Reactive Violet; 1, 2, 4, 5, 6, 22, 23, 33, 36, 38,
C. I. Reactive Blue; 2, 3, 4, 7, 13, 14, 15, 19, 21, 25, 27, 28, 29, 38, 39, 41, 49, 50, 52, 63, 69, 71, 72, 77 79, 89, 104, 109, 112, 113, 114, 116, 119, 120, 122, 137, 140, 143, 147, 160, 161, 162, 163, 168, 171, 176, 182, 184, 191 , 194, 195, 198, 203, 204, 207, 209, 211, 214, 220, 221, 222, 231, 235, 236,
C. I. Reactive Green; 8, 12, 15, 19, 21,
C. I. Reactive Brown; 2, 7, 9, 10, 11, 17, 18, 19, 21, 23, 31, 37, 43, 46,
C. I. Reactive Black 5, 8, 13, 14, 31, 34, 39,
Etc.

As an acid dye preferably used in the present invention,
C. I. Acid Yellow; 1, 3, 11, 17, 18, 19, 23, 25, 36, 38, 40, 40: 1, 42, 44, 49, 59, 59: 1, 61, 65, 67, 72, 73 79, 99, 104, 110, 159, 169, 176, 184, 193, 200, 204, 207, 215, 219, 219: 1, 220, 230, 232, 235, 241, 242, 246,
C. I. Acid Orange; 3, 7, 8, 10, 19, 22, 24, 51, 51S, 56, 67, 74, 80, 86, 87, 88, 89, 94, 95, 107, 108, 116, 122, 127 140, 142, 144, 149, 152, 156, 162, 166, 168,
C. I. Acid Red; 1, 6, 8, 9, 13, 18, 27, 35, 37, 52, 54, 57, 73, 82, 88, 97, 97: 1, 106, 111, 114, 118, 119, 127 131, 138, 143, 145, 151, 183, 195, 198, 211, 215, 217, 225, 226, 249, 251, 254, 256, 257, 260, 261, 265, 266, 274, 276, 277 289, 296, 299, 315, 318, 336, 337, 357, 359, 361, 362, 364, 366, 399, 407, 415,
C. I. Acid Violet; 17, 19, 21, 42, 43, 47, 48, 49, 54, 66, 78, 90, 97, 102, 109, 126,
C. I. Acid Blue; 1, 7, 9, 15, 23, 25, 40, 61: 1, 62, 72, 74, 80, 83, 90, 92, 103, 104, 112, 113, 114, 120, 127, 127 : 1, 128, 129, 138, 140, 142, 156, 158, 171, 182, 185, 193, 199, 201, 203, 204, 205, 207, 209, 220, 221, 224, 225, 229, 230 239, 258, 260, 264, 277: 1, 278, 279, 280, 284, 290, 296, 298, 300, 317, 324, 333, 335, 338, 342, 350,
C. I. Acid Green; 9, 12, 16, 19, 20, 25, 27, 28, 40, 43, 56, 73, 81, 84, 104, 108, 109,
C. I. Acid Brown; 2, 4, 13, 14, 19, 28, 44, 123, 224, 226, 227, 248, 282, 283, 289, 294, 297, 298, 301, 355, 357, 413,
C. I. Acid Black; 1, 2, 3, 24, 24: 1, 26, 31, 50, 52, 52: 1, 58, 60, 63, 63S, 107, 109, 112, 119, 132, 140, 155, 172 187, 188, 194, 207, 222,
As the direct dye preferably used in the present invention,
C. I. Direct Yellow; 8, 9, 10, 11, 12, 22, 27, 28, 39, 44, 50, 58, 86, 87, 98, 105, 106, 130, 137, 142, 147, 153,
C. I. Direct Orange; 6, 26, 27, 34, 39, 40, 46, 102, 105, 107, 118,
C. I. Direct Red; 2, 4, 9, 23, 24, 31, 54, 62, 69, 79, 80, 81, 83, 84, 89, 95, 212, 224, 225, 226, 227, 239, 242, 243 254,
C. I. Direct Violet; 9, 35, 51, 66, 94, 95,
C. I. Direct Blue; 1, 15, 71, 76, 77, 78, 80, 86, 87, 90, 98, 106, 108, 160, 168, 189, 192, 193, 199, 200, 201, 202, 203, 218 225, 229, 237, 244, 248, 251, 270, 273, 274, 290, 291,
C. I. Direct Green; 26, 28, 59, 80, 85,
C. I. Direct Brown; 44, 44: 1, 106, 115, 195, 209, 210, 212: 1, 222, 223,
C. I. Direct Black; 17, 19, 22, 32, 51, 62, 108, 112, 113, 117, 118, 132, 146, 154, 159, 169,
As a pigment preferably used in the present invention,
Carbon black,
C. I. Pigment Yellow; 1, 3, 12, 13, 14, 16, 17, 43, 55, 74, 81, 83, 109, 110, 120, 138, 150,
C. I. Pigment Orange; 13, 16, 34, 43,
C. I. Pigment Red; 2, 5, 8, 12, 17, 22, 23, 41, 112, 114, 122, 123, 146, 148, 149, 150, 166, 170, 220, 238, 245, 258,
C. I. Pigment Violet; 19, 23,
C. I. Pigment Blue; 15, 15: 1, 15: 3, 15: 4, 15: 5, 15: 6, 29,
C. I. Pigment Brown; 22,
C. I. Pigment Black; 1, 7,
C. I. Pigment White 6,
Etc.

  In the present invention, the content of the color material contained in the ink is preferably 0.1 to 20% by mass, and more preferably 0.2 to 13% by mass.

  Examples of the water-soluble organic solvent used in the ink according to the present invention include polyhydric alcohols (for example, ethylene glycol, glycerin, 2-ethyl-2- (hydroxymethyl) -1,3-propanediol, tetraethylene glycol). , Triethylene glycol, tripropylene glycol, 1,2,4-butanetriol, diethylene glycol, propylene glycol, dipropylene glycol, butylene glycol, 1,6-hexanediol, 1,2-hexanediol, 1,5-pentanediol 1,2-pentanediol, 2,2-dimethyl-1,3-propanediol, 2-methyl-2,4-pentanediol, 3-methyl-1,5-pentanediol, 3-methyl-1,3 -Butanediol, 2-methyl-1,3-propyl Pandiol etc.), amines (eg ethanolamine, 2- (dimethylamino) ethanol etc.), monohydric alcohols (eg methanol, ethanol, butanol etc.), polyhydric alcohol alkyl ethers (eg diethylene glycol monomethyl ether) , Diethylene glycol monobutyl ether, triethylene glycol monomethyl ether, triethylene glycol monobutyl ether, ethylene glycol monomethyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monobutyl ether, dipropylene glycol monomethyl ether), 2,2'- Thiodiethanol, amides (eg, N, N-dimethylformamide, etc.), heterocycles (2-pyrrole) Emissions, etc.) and acetonitrile. The amount of the water-soluble organic solvent is preferably 10 to 60% by mass with respect to the total ink mass.

  As the surfactant used in the ink according to the present invention, any of cationic, anionic, amphoteric and nonionic can be used. Examples of the cationic surfactant include aliphatic amine salts, Aliphatic quaternary ammonium salts, benzalkonium salts, benzethonium chloride, pyridinium salts, imidazolinium salts and the like can be mentioned. Examples of the anionic surfactant include fatty acid soap, N-acyl-N-methylglycine salt, N-acyl-N-methyl-β-alanine salt, N-acyl glutamate, alkyl ether carboxylate, acyl Peptide, alkyl sulfonate, alkyl benzene sulfonate, alkyl naphthalene sulfonate, dialkyl sulfosuccinate, alkyl sulfoacetate, α-olefin sulfonate, N-acylmethyl taurine, sulfated oil, higher alcohol Sulfate, secondary higher alcohol sulfate, alkyl ether sulfate, secondary higher alcohol ethoxy sulfate, polyoxyethylene alkyl phenyl ether sulfate, monoglyculate, fatty acid alkylolamide sulfate, alkyl ether phosphorus acid Examples thereof include ester salts and alkyl phosphate ester salts. Examples of amphoteric surfactants include carboxybetaine type, sulfobetaine type, aminocarboxylate, imidazolinium betaine and the like. Nonionic surfactants include, for example, polyoxyethylene alkyl ether, polyoxyethylene secondary alcohol ether, polyoxyethylene alkylphenyl ether (for example, Emulgen 911), polyoxyethylene sterol ether, polyoxyethylene lanolin derivative, polyoxyethylene Oxyethylene polyoxypropylene alkyl ether (for example, Newpol PE-62), polyoxyethylene glycerin fatty acid ester, polyoxyethylene castor oil, hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, polyethylene glycol Fatty acid ester, fatty acid monoglyceride, polyglycerin fatty acid ester, sorbitan fatty acid ester, propylene glycol fat Esters, sucrose fatty acid esters, fatty acid alkanolamides, polyoxyethylene fatty acid amides, polyoxyethylene alkyl amines, alkyl amine oxides, acetylene glycol, acetylene alcohol, and the like. The present invention is not limited to these.

  When these surfactants are used, they can be used singly or as a mixture of two or more, and by adding in a range of 0.001 to 1.0% by mass with respect to the total mass of the ink, The surface tension can be arbitrarily adjusted, which is preferable.

  In the ink according to the present invention, an inorganic salt can be added to the ink in order to keep the ink viscosity and the dye stable and improve the color development. Examples of the inorganic salt include sodium chloride, sodium sulfate, magnesium chloride, magnesium sulfate and the like. When implementing this invention, it is not limited to these.

  In the ink according to the present invention, an antiseptic and an antifungal agent can be added to the ink in order to maintain long-term storage stability of the ink. Examples of the antiseptic and antifungal agent include aromatic halogen compounds (for example, Preventol CMK), methylene dithiocyanate, halogen-containing nitrogen sulfur compounds, 1,2-benzisothiazolin-3-one (for example, PROXEL GXL), and the like. Is mentioned. The present invention is not limited to these.

  In the ink according to the present invention, when a disperse dye or pigment is used as the color material, the color material, the dispersant, the wetting agent, the medium, and any additive can be mixed and dispersed by using a disperser. As the disperser, conventionally known dispersing means such as a ball mill, a sand mill, a line mill, a high-pressure homogenizer, and the like can be used.

  The average particle size of the disperse dye or pigment is preferably 300 nm or less as the average particle size and 900 nm or less as the maximum particle size. This is because if the average particle size or the maximum particle size exceeds the range specified above, clogging is likely to occur in an ink jet printing method in which light is emitted from a fine nozzle, and stable emission cannot be performed. The average particle diameter can be determined by a commercially available particle size measuring instrument using a light scattering method, an electrophoresis method, a laser Doppler method or the like. Specific examples of the particle diameter measuring apparatus include Zetar Sizer 1000 manufactured by Malvern.

  Dispersants preferably used in the ink according to the present invention include, for example, a formalin condensate of sodium creosote oil sulfonate (eg, Demol C), a formalin condensate of sodium cresol sulfonate and sodium 2-naphthol-6-sulfonate. Formalin condensate of sodium cresol sulfonate, formalin condensate of sodium phenol sulfonate, formalin condensate of sodium β-naphthol sulfonate, sodium β-naphthalene sulfonate (eg, demole N) and sodium β-naphthol sulfonate Formalin condensate, lignin sulfonate (for example, Vanillex RN), sodium paraffin sulfonate (for example, Efcol 214), copolymer of α-olefin and maleic anhydride (for example, Florene G-70) ), Acrylic polymer active agent (for example, Joncryl series) and the like.

  As for the usage-amount of a dispersing agent, 20-200 mass% is preferable with respect to a coloring material. If the amount of the dispersant is small, it is difficult to make fine particles, and the dispersion stability is also lowered. If the amount of the dispersant is too large, the formation of fine particles and the dispersion stability is inferior, and the viscosity becomes high. These dispersants may be used alone or in combination.

  In the present invention, preferable wetting agents for dispersion include, for example, sodium dodecylbenzenesulfonate, sodium 2-ethylhexylsulfosuccinate, sodium alkylnaphthalenesulfonate, ethylene oxide adduct of phenol, ethylene oxide adduct of acetylenic diol, etc. It is.

  Depending on the structure of the coloring material used, foaming, gelation, and fluidity may be deteriorated during dispersion. Therefore, the dispersing agent and wetting agent may be used in addition to the wetting ability, atomization ability, and dispersion stability. It is necessary to select in consideration of foaming during dispersion, gelation of the dispersion, fluidity of the dispersion, and the like. Dispersants and wetting agents affect the dyeability, dyeing rate, leveling, transferability, color tone, fastness, etc. of the fabric, and when developing at high temperatures, It is preferable to select in consideration of non-uniform dyeing due to tarring of the agent. Since there is no dispersant that satisfies all of the above requirements, it is necessary to select an optimal dispersant according to the color material to be dispersed and to add an antifoaming agent or the like as necessary.

  It is preferable that a dyeing assistant is contained in the inkjet ink for printing used for dyeing by the high-temperature steaming method or the fabric used for printing.

  The dyeing assistant has the effect of reducing the amount of moisture that is re-evaporated and shortening the temperature rising time by making a eutectic mixture with water condensed in the form of cloth when steaming the printed fabric. Further, this eutectic mixture has the effect of dissolving the dye on the fiber and promoting the diffusion rate of the dye into the fiber. Urea is mentioned as a dyeing assistant. This dyeing assistant may be applied to the fabric in advance or may be contained in the pretreatment liquid.

  In the pretreatment liquid and ink of the present invention, the dissolved gas contained in the liquid is a factor that impairs the resolution and clarity of the printed matter and causes generation of fine bubbles. Methods for degassing a dissolved gas from a liquid can be broadly divided into a method of degassing by a physical method such as boiling or reduced pressure, and a chemical method of mixing an absorbent into the liquid. In the present invention, degassing can be performed by any means. In particular, the method of permeating and removing the dissolved gas in the liquid by passing the liquid through the gas-permeable hollow fiber membrane and reducing the pressure on the outer surface side of the hollow fiber membrane has an adverse effect on the physical properties of the liquid. The dissolved gas in the liquid can be efficiently removed without giving, which is preferable.

  The dissolved air concentration can be obtained by measuring the dissolved oxygen concentration and based on the proportion of oxygen in the air. The dissolved oxygen concentration can be measured by the Ostwald method (Experimental Chemistry Course 1 Basic Operation [I], page 241, 1975, Maruzen) or by the mass spectrum method, and simple oxygen such as galvanic cell type or polarographic type. It can be measured with a densitometer or colorimetric analysis.

  In the ink jet textile printing method for printing on a cloth, it is desirable to wind up the printed cloth after emitting the ink, develop a color by heating, and wash and dry the cloth. In ink jet textile printing, ink is not printed well just by printing it on a cloth and leaving it alone. In addition, when printing on a long fabric for a long time, the fabric comes out endlessly, and the printed fabric overlaps the floor etc., leaving a place that is unsafe and unexpectedly dirty. There is a case. Therefore, it is necessary to perform a winding operation after printing. During this operation, a medium not related to printing, such as paper, cloth, or vinyl, may be sandwiched between the cloths. However, it is not always necessary to wind up when cutting in the middle or short fabric.

  The color development step is a step of developing the original hue of ink by adhering to and fixing the dye in the ink that has only adhered to the fabric surface after printing and is not sufficiently adsorbed and fixed to the fabric. As the method, steaming by steam, baking by dry heat, thermosol, HT steamer by superheated steam, HP steamer by pressurized steam, etc. are used. They are appropriately selected depending on the material to be printed, ink, and the like. Further, the printed fabric may be immediately heat-treated or may be heat-treated after a while and may be dried and colored according to the intended use, and any method may be used in the present invention.

  In the ink jet textile printing method of the present invention, when dyeing with a disperse dye, not only a method of developing a color at a high temperature but also a carrier may be used. The compound used as the carrier is preferably a compound having characteristics such as large dyeing acceleration, simple use, stable, low burden on human body and environment, easy removal from the fiber, and no influence on dye fastness. Examples of carriers include o-phenylphenol, p-phenylphenol, methylnaphthalene, alkyl benzoate, alkyl salicylate, phenols such as chlorobenzene and diphenyl, ethers, organic acids, hydrocarbons and the like. These promote the swelling and plasticization of difficult-to-dye fibers that are difficult to dye at temperatures around 100 ° C. like polyester, and make it easier for disperse dyes to enter the fibers. The carrier may be preliminarily adsorbed on the fibers of the fabric used for inkjet printing, or may be included in the inkjet ink.

  After the heat treatment, a cleaning process is necessary. This is because a dye that has not participated in the dyeing remains, resulting in poor color stability and low fastness. It is also necessary to remove the pretreatment product applied to the fabric. If left as it is, not only the fastness is lowered, but also the fabric is discolored. Therefore, cleaning according to the object to be removed and the purpose is essential. The method is selected according to the material and ink to be printed. For example, in the case of polyester, treatment is generally performed with a mixed solution of caustic soda, a surfactant, and hydrosulfite. The method is usually carried out in a continuous type such as an open soaper or in a batch type using a liquid dyeing machine, and any method may be used in the present invention.

  After washing, drying is necessary. After the washed fabric is squeezed or dehydrated, it is dried or dried using a dryer, heat roll, iron or the like.

  EXAMPLES Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited thereto. In addition, although the display of "part" or "%" is used in an Example, unless otherwise indicated, "part by mass" or "mass%" is represented.

<< Preparation of pretreatment liquid >>
[Preparation of Pretreatment Solution 1: Present Invention]
Carboxymethylcellulose (Daicel, CMC1130) 2.0%
Polyethylene polyamine-based cationic polymer (manufactured by Nikka Chemical Co., Neofix RP-70) 0.5%
Polyoxyethylene polyoxypropylene (Sanyo Chemical Industries, New Pole PE-62) 0.5%
Urea 0.2%
Sodium carbonate 0.5%
Malic acid 0.5%
Palmitic acid 0.5%
The amount required to finish the total amount of ion-exchanged water to 100 parts The above additives were sequentially mixed and stirred, and then filtered through a 1 μm filter to prepare Pretreatment Solution 1.

[Preparation of Pretreatment Solution 2: Present Invention]
Carboxymethylcellulose (Daicel, CMC1220) 2.0%
Polyethylene polyamine-based cationic polymer (manufactured by Nikka Chemical Co., Neofix IJ-117) 0.5%
Polyoxyethylene alkyl ether (Nanoacty ID-70, manufactured by Sanyo Chemical Industries, Ltd.) 0.5%
Urea 0.2%
Sodium carbonate 0.5%
Malic acid 0.8%
Palmitic acid 0.8%
Amount required to finish the total amount of ion-exchanged water to 100 parts The above additives were sequentially mixed and stirred, and then filtered through a 1 μm filter to prepare Pretreatment Solution 2.

[Preparation of Pretreatment Solution 3: Comparative Example]
In the preparation of the pretreatment liquid 1, a pretreatment liquid 3 was prepared in the same manner except that the same amount of sodium alginate was used in place of the synthetic anionic polymer carboxymethylcellulose.

[Preparation of Pretreatment Solution 4: Comparative Example]
In the preparation of the pretreatment liquid 1, a pretreatment liquid 4 was prepared in the same manner except that the same amount of polyethylene oxide was used instead of the polyethylene polyamine cationic polymer which is a cationic polymer.

[Preparation of Pretreatment Solution 5: Comparative Example]
In the preparation of the pretreatment liquid 1, the same amount of anionic surfactant sodium polyoxyethylene alkyl ether sulfate was used in place of polyoxyethylene polyoxypropylene which is a nonionic surfactant. Thus, a pretreatment liquid 5 was prepared.

[Preparation of Pretreatment Solution 6: Comparative Example]
A pretreatment liquid 6 was prepared in the same manner as in the preparation of the pretreatment liquid 1 except that the polyethylene polyamine-based cationic polymer and the polyoxyethylene polyoxypropylene were omitted.

[Preparation of Pretreatment Solution 7: Comparative Example]
A pretreatment liquid 7 was prepared in the same manner as in the preparation of the pretreatment liquid 1 except that carboxymethyl cellulose and polyoxyethylene polyoxypropylene were excluded.

[Preparation of Pretreatment Liquid 8: Comparative Example]
A pretreatment liquid 8 was prepared in the same manner as in the preparation of the pretreatment liquid 1 except that carboxymethylcellulose and a polyethylene polyamine-based cationic polymer were removed.

[Preparation of Pretreatment Liquid 9: Comparative Example]
A pretreatment liquid 9 was prepared in the same manner as in the preparation of the pretreatment liquid 1 except that carboxymethylcellulose was excluded.

[Preparation of Pretreatment Solution 10: Comparative Example]
A pretreatment liquid 10 was prepared in the same manner as in the preparation of the pretreatment liquid 1 except that the polyethylene polyamine-based cationic polymer was removed.

[Preparation of Pretreatment Solution 11: Comparative Example]
A pretreatment liquid 11 was prepared in the same manner as in the preparation of the pretreatment liquid 1 except that polyoxyethylene polyoxypropylene was omitted.

  The details of each compound indicated by an abbreviation in Table 1 are as follows.

<Glue>
A-1: Carboxymethylcellulose (CMC1130, manufactured by Daicel Corporation)
A-2: Carboxymethylcellulose (Daicel, CMC1220)
A-3: Sodium alginate <Polymer compound>
B-1: Polyethylene polyamine-based cationic polymer (manufactured by Nikka Chemical Co., Ltd., Neofix RP-70)
B-2: Polyethylene polyamine-based cationic polymer (manufactured by Nikka Chemical Co., Ltd., Neofix IJ-117)
B-3: Polyethylene oxide <Surfactant>
C-1: Polyoxyethylene polyoxypropylene (nonionic surfactant, Sanyo Chemical Industries, New Pole PE-62)
C-2: Polyoxyethylene alkyl ether (nonionic surfactant, manufactured by Sanyo Chemical Industries, NAROACTY ID-70)
C-3: Sodium polyoxyethylene alkyl ether sulfate (anionic surfactant)
<Preparation of ink>
[Preparation of Yellow Ink 1]
(Preparation of yellow dye dispersion)
Disperse dye: C.I. I. Disperse Yellow 30 20%
18% ethylene glycol
Glycerin 21%
Sodium lignin sulfonate 12%
Ion exchange water 29%
The respective additives were sequentially added and mixed, and then dispersed using a sand grinder to prepare a yellow dye dispersion.

(Preparation of yellow ink)
Yellow dye dispersion 40%
Ethylene glycol 17%
Glycerin 19%
Dipotassium monohydrogen phosphate 2%
Potassium dihydrogen phosphate 2%
Preservative (isothiazolone chloride) 2%
Ion exchange water 18%
Each of the above additives was sequentially mixed and stirred, then filtered through a 3 μm membrane filter, and then subjected to deaeration treatment using a hollow fiber membrane to prepare yellow ink 1.

[Preparation of magenta ink 1, cyan ink 1 and black ink 1]
In the preparation of the yellow ink, the dye is C.I. I. Disperse Red 5, C.I. I. Disperse Blue 330, C.I. I. Magenta ink 1, cyan ink 1 and black ink 1 were prepared in the same manner except that each was changed to Disperse Black 1.

<< Image recording on fabric >>
〔Preprocessing〕
Polyester fibers having a thickness of 240 μm were dipped in each of the prepared pretreatment liquids, then squeezed with mangles under a condition that the squeezing rate was 80%, and then dried to prepare pretreated fabrics 1-11.

(Image printing)
Each of the prepared color inks was loaded into a Nassenger-II manufactured by Konica Minolta Technology Center Co., Ltd., and each of yellow, magenta, cyan, and black colors was added to the prepared pretreated fabrics 1 to 11 in a square area. The output single-color solid image and pattern were printed.

[Coloring treatment and cleaning treatment]
Next, the printed fabric was steamed at a temperature of 180 ° C. for 8 minutes, washed with water, soaped at 40 ° C., further washed with water and dried to prepare dyed samples 1 to 11.

<Evaluation of stained sample>
[Evaluation of color development]
The reflection density of each color solid image of yellow, magenta, cyan, and black prepared according to the above method was measured using a reflection densitometer (manufactured by X-rite), and the average reflection density of each color reflection density was determined. Next, the relative average reflection density of each dyed sample when the average reflection density of the dyed sample 1 prepared using the pretreatment liquid 1 was taken as 100 was determined, and the color development was evaluated according to the following criteria.

A: Relative average reflection density is 95 or more B: Relative average reflection density is 90 or more and less than 95 Δ: Relative average reflection density is 80 or more and less than 90 ×: Relative average reflection density is Less than 80 [Evaluation of bleeding resistance]
The boundary area between the printed pattern part (image part) and the white background part was observed for the presence or absence of bleeding using a loupe, and the bleeding resistance was evaluated according to the following criteria. O: No clear image is observed, and the image is extremely clear. ○: Slight blurring is observed at the boundary of the pattern part, but the image is clear and good. Δ: Slightly strong at the boundary of the pattern part. When the occurrence of blur is recognized, the image is slightly lacking in sharpness. ×: When the occurrence of strong blur is recognized at the boundary of the pattern portion, the image is lacking in sharpness and has no sharpness. Table 1 shows.

  As is clear from the results shown in Table 1, the dyed sample of the present invention prepared using a pretreatment solution containing a synthetic anionic polymer, a cationic polymer and a nonionic surfactant was colored against the comparative example. It can be seen that a very clear and deep image can be obtained with excellent properties and image blur resistance.

Example 2
In the production of the dyed product of Example 1, each dyed sample was prepared in the same manner except that the fabric was changed to silk and the ink was changed to the following acidic dye ink, and then the same method as described in Example 1 was used. As a result of evaluating the color developability and the bleeding resistance of the image, as in the result described in Example 1, the stained sample prepared using the pretreatment liquid of the present invention has good results in any characteristics. Could get.

<Preparation of ink>
[Preparation of Yellow Ink 2]
Dye: C.I. I. Acid Yellow 110 10%
20% ethylene glycol
Glycerin 10%
Ion exchange water 60%
After sequentially mixing and stirring the above additives, the mixture was filtered with a 1 μm membrane filter and subjected to a deaeration treatment using a hollow fiber membrane to prepare yellow ink 2 as an inkjet ink.

[Preparation of magenta ink 2, cyan ink 2, black ink 2]
In the preparation of the yellow ink 2 described above, the dye was changed to C.I. I. Acid Red 289, C.I. I. Acid Blue 112, C.I. I. Magenta ink 2, cyan ink 2, and black ink 2 were prepared in the same manner except that the acid black 52 was changed.

Example 3
In the production of the dyed products of Examples 1 and 2, the fabric was changed to cotton, hemp, rayon fiber, and acetate fiber, and each dyed sample was prepared in the same manner as described in Example 1, and then Examples In the same manner as in the method described in 1, as a result of evaluating the color developability and the bleeding resistance of the image, the stained sample prepared using the pretreatment liquid of the present invention, similar to the result described in Example 1, Good results were obtained with any of the characteristics.

Claims (4)

An inkjet printing method for printing on a fabric by an inkjet method, wherein a pretreatment liquid containing at least a synthetic anionic polymer, a cationic polymer, and a nonionic surfactant is applied to the fabric before ink is applied to the fabric. An ink-jet printing method comprising: An ink-jet printing method, wherein the fabric is at least one selected from cotton, silk, hemp, rayon fiber, acetate fiber, polyester fiber, and a blend thereof. A pretreatment liquid for ink jet printing applied to a cloth before ink is discharged onto the cloth in an ink jet printing method, characterized by containing a synthetic anionic polymer, a cationic polymer and a nonionic surfactant A pretreatment liquid for inkjet textile printing. A pretreatment liquid for inkjet printing, wherein the fabric is at least one selected from cotton, silk, hemp, rayon fiber, acetate fiber, polyester fiber, and a blend thereof.