JP5237093B2 - Inkjet printing method and inkjet printed matter - Google Patents

Description

  The present invention relates to an ink-jet printing method and an ink-jet printed product that can prevent set-off and are excellent in image density.

  Conventionally, the textile printing method has mainly been hand-drawn or screen-printed, but recently, an inkjet recording method that is extremely simple and can continuously dye even long fabrics has been used. Is increasing.

  In addition, the ink used is also a colorant that has a clear and reproducible color gamut, but has low light resistance, and instead of a dye that requires complicated post-processing such as fixing to fabric, washing with water, and waste liquid treatment, a pigment is used. The water-based ink used has been attracting attention.

  As an inkjet printing method using such a pigment-type aqueous ink, for example, a fabric treated with a treatment liquid containing a cationic compound such as a water-soluble polyvalent metal ion or a cationic resin is dyed with the pigment-type aqueous ink. (For example, refer to Japanese Patent Application Laid-Open Nos. 07-119047 and 2000-226781) and the like have been proposed.

  However, these methods have a problem that the color density of the printed material is not sufficient and an image that looks good cannot be obtained.

  An object of the present invention is to provide an ink jet printing method for obtaining a dyed product having no show-through and a high image density, and a dyed product obtained by the ink jet dyeing method.

  As a result of intensive studies to solve the above-mentioned problems, the present inventors have printed an aqueous pigment ink for ink-jet printing of the same color on a fabric to form an image, and then heating it. The present inventors have found that the above problems can be solved, and have completed the present invention.

  That is, the present invention provides the following inkjet printing method.

(1) Ink jet recording ink (ink A) containing a pigment, an anionic aqueous resin, and an aqueous medium using an ink jet recording method, and a neutral and / or basic pigment having the same color as the pigment of ink A An ink jet printing method comprising: heating an ink jet recording ink (ink B) containing a cationic aqueous resin and an aqueous medium after printing on the same place on a fabric to form an image.

(2) The inkjet printing method according to item (1), wherein the ink B is an inkjet recording ink further containing a heterocyclic compound represented by the general formula (1).

[Wherein, X represents O, NH, NR (wherein R represents an alkyl group) or S. Y represents an alkylene group. m represents an integer of 0 to 5, n represents an integer of 0 to 5, and m + n = 1 to 5. R ¹ represents a hydroxyl group, an alkyl group or an aryl group. p represents an integer of 0 to 7, and p R ¹ may be the same or different. C represents a carbon atom constituting a heterocyclic ring together with X, and q represents an integer of 3 to 9. The carbon atom C may form a C═O group, and the bond between two adjacent carbon atoms may be a single bond or a double bond. m + n + p + q ≦ (the total number of atoms constituting the heterocyclic ring−1)].

(3) An ink-jet printed product obtained by the ink-jet printing method described in (1) or (2) above.

  Hereinafter, the present invention will be described in more detail.

  In the present invention, neutral and / or basic treatment of the same color as the pigment of the ink of the inkjet recording ink (ink A) including the pigment, the anionic aqueous resin, and the aqueous medium using the inkjet recording method is performed. An inkjet recording ink (ink B) containing a pigment, a cationic aqueous resin, and an aqueous medium is printed on the same place on a fabric not treated with a treatment liquid to form an image, and then heated. The present invention relates to a printing method. Here, the pigment used in ink A and the pigment used in ink B have the same color means that the hues of both pigments are substantially the same.

<Constituent materials used in the inkjet printing method of the present invention>
First, the cloth may be any conventionally used cloth, for example, a cloth made of cotton, silk, hemp, rayon, acetate, nylon or polyester fibers, a blended cloth made of two or more of these fibers, etc. Can be used.

  Next, as the aqueous pigment ink for inkjet printing (A), an anionic aqueous pigment ink for inkjet printing having a viscosity of 2 to 16 mPa · s containing a pigment, an anionic aqueous resin, a basic compound and an aqueous medium can be preferably used. . The viscosity of the anionic water-based pigment ink for ink-jet printing is appropriately selected depending on the apparatus for printing the anionic water-based pigment ink for ink-jet printing.

  Here, as the pigment, conventionally known inorganic or organic pigments can be used without particular limitation. For example, inorganic pigments such as carbon black and titanium oxide, azo pigments, diazo pigments, phthalocyanine pigments, quinacridone pigments, isoindolinone pigments, Examples thereof include organic pigments such as dioxazine pigments, perylene pigments, perinone pigments, thioindigo pigments, anthraquinone pigments, and quinophthalone pigments. The pigment may be neutral, acid-treated, or basic-treated.

  Moreover, as an anionic aqueous resin, the thing of the acid value 30-300 mgKOH / g generally used in the inkjet field | area can be used preferably. Specifically, (meth) acrylic acid alkyl ester- (meth) acrylic acid copolymer, styrene- (meth) acrylic acid copolymer, styrene- (meth) acrylic acid- (meth) acrylic acid alkyl ester copolymer Examples thereof include styrene-maleic acid copolymer, styrene-maleic acid- (meth) acrylic acid alkyl ester copolymer, and styrene-maleic acid half ester copolymer.

  The basic compound is used for dissolving or dispersing the anionic aqueous resin in an aqueous medium. Examples of such basic compounds include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, and organic basic compounds such as triethylamine, monoethanolamine, triethanolamine, and triethylenediamine. These may be used alone or in combination of two or more. Among these, a non-volatile amine basic compound is suitable from the viewpoints of drying properties and ejection stability.

  The aqueous medium is not particularly limited, and water or a mixture of water and a water-miscible solvent that has been conventionally used in the inkjet field can be used. Specific examples of the water-miscible solvent include lower alcohols such as ethanol and propanol, (poly) alkylene glycols such as (poly) ethylene glycol and (poly) propylene glycol, and alkyl ethers thereof. You may use together 1 type, or 2 or more types.

  In the aqueous pigment ink (A) for inkjet textile printing of the present invention, the pigment is preferably contained in an amount of 5 to 30% by mass from the viewpoint of image density. The anionic aqueous resin is preferably 30 to 150 parts by mass with respect to 100 parts by mass of the pigment.

  Moreover, various additives, such as surfactant, a viscosity modifier, an antifoamer, and a film-forming auxiliary agent, can also be added to the water-based pigment ink (A) for inkjet textile printing according to the present invention as necessary.

  Next, as the aqueous pigment ink (B) for inkjet printing, a cationic aqueous pigment ink for inkjet printing having a viscosity of 2 to 16 mPa · s containing a neutral or basic treated pigment, a cationic aqueous resin, and an aqueous medium is used. It can be preferably used. The viscosity of the cationic water-based pigment ink for ink-jet printing is appropriately selected depending on the apparatus for printing the cationic water-based pigment ink for ink-jet printing.

  Here, as the neutral pigment and the basic treated pigment, conventionally known neutral or basic treated inorganic or organic pigments can be used without any particular limitation. For example, inorganic pigments such as carbon black and titanium oxide, azo pigments, and the like. And organic pigments such as diazo pigments, phthalocyanine pigments, quinacridone pigments, isoindolinone pigments, dioxazine pigments, perylene pigments, perinone pigments, thioindigo pigments, anthraquinone pigments, and quinophthalone pigments. It is preferable not to use an acid-treated pigment in the cationic aqueous pigment ink for ink-jet printing (B) because the resulting cationic water-based pigment ink for ink-jet printing (B) has low stability and high viscosity.

  Examples of the cationic aqueous resin include polyallylamine, polyethyleneimine, polyvinylamine, polyvinylpyridine, polyethyleneimine-epichlorohydrin reaction product, polyamide-polyamine resin, polyamide-epichlorohydrin resin, cationic starch or acid neutralized product thereof, and tertiary amino acid. Acid neutralization of a copolymer of a group-containing monomer [N, N-dimethylaminoethyl (meth) acrylate, N- (N ′, N′dimethylaminopropyl) (meth) acrylamide, vinylpyrrolidone, etc.] and a nonpolar monomer , Quaternary ammonium base-containing monomer [quaternization of tertiary amino group-containing monomers such as N, N-dimethylaminoethyl (meth) acrylate with quaternizing agents such as methyl chloride, ethyl chloride, dimethyl sulfate, diethyl sulfate] Obtained by reaction Copolymers of Nomar] and the non-polar monomer can be exemplified. Among these cationic resins, an acid neutralized product of a copolymer of a tertiary amino group-containing monomer and a nonpolar monomer, and a copolymer of a quaternary ammonium base-containing monomer and a nonpolar monomer are preferable. Examples of the acid used for the production of the acid neutralized product include inorganic acids such as hydrochloric acid, nitrous acid, sulfuric acid and phosphoric acid, carboxylic acids having 1 to 5 carbon atoms, oxyacids such as lactic acid and glycolic acid.

  The aqueous medium is not particularly limited, and water or a mixture of water and a water-miscible solvent that has been conventionally used in the inkjet field can be used. Specific examples of the water-miscible solvent include lower alcohols such as ethanol and propanol, (poly) alkylene glycols such as (poly) ethylene glycol and (poly) propylene glycol, and alkyl ethers thereof. You may use together 1 type, or 2 or more types.

  In the aqueous pigment ink (B) for ink jet textile printing of the present invention, the pigment is preferably contained in an amount of 5 to 30% by mass from the viewpoint of image density. The cationic aqueous resin is preferably 30 to 150 parts by mass with respect to 100 parts by mass of the pigment.

  The aqueous pigment ink (B) for ink jet textile printing of the present invention containing the above-described constituent materials can contain a heterocyclic compound represented by the general formula (1). Thereby, a dyed product having a higher image density can be obtained.

[Wherein, X represents O, NH, NR (wherein R represents an alkyl group) or S. Y represents an alkylene group. m represents an integer of 0 to 5, n represents an integer of 0 to 5, and m + n = 1 to 5. R ¹ represents a hydroxyl group, an alkyl group or an aryl group. p represents an integer of 0 to 7, and p R ¹ may be the same or different. C represents a carbon atom constituting a heterocyclic ring together with X, and q represents an integer of 3 to 9. The carbon atom C may form a C═O group, and the bond between two adjacent carbon atoms may be a single bond or a double bond. m + n + p + q ≦ (the total number of atoms constituting the heterocyclic ring−1)].

In the general formula (1), examples of R include alkyl groups having 1 to 4 carbon atoms such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, s-butyl, and t-butyl groups. It is done. Examples of Y include an alkylene group having 1 to 4 carbon atoms such as a methylene group, an ethylene group, a trimethylene group, a propylene group, a tetramethylene group, and a butylene group. Examples of the alkyl group represented by R ¹ include alkyl groups having 1 to 4 carbon atoms such as methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl, s-butyl group and t-butyl group. . Examples of the alkoxy group represented by R ¹ include alkoxy groups having 1 to 4 carbon atoms such as methoxy group, ethoxy group, propoxy group, isopropoxy group, butoxy group, isobutoxy group, s-butoxy group, and t-butoxy group. Can be mentioned. Examples of the aryl group represented by R ¹ include a phenyl group and a substituted phenyl group (the substituent includes an alkyl group and a halogen atom).

  If the heterocyclic compound represented by the general formula (1) of the present invention is a heterocyclic compound having a carboxylic acid group, the number of carbon atoms constituting the ring or the substituent that can be introduced is the above general one. As long as it is included in Formula (1), you may have what kind of structure. The heterocyclic ring contained in the heterocyclic compound represented by the general formula (1) may be a single ring or a heterocyclic ring having two or more rings. Usually it is a 5- to 10-membered ring. Examples of the heterocyclic ring include a furan ring, a tetrahydrofuran ring, a pyrrole ring, a pyrrolidine ring, a pyrroline ring, a pyrrolidone ring, a pyrone ring, a pyrrole ring, a thiophene ring, a pyridine ring, a piperidine ring, an indole ring, a quinoline ring, and a benzofuran ring. Is mentioned. Specific examples of the heterocyclic compound represented by the general formula (1) include 2-pyrrolidone-5-carboxylic acid, furancarboxylic acid, 2-benzofurancarboxylic acid, 5-methyl-2-furancarboxylic acid, 2, 5-dimethyl-3-furancarboxylic acid, 2,5-furandicarboxylic acid, 3-hydroxy-4-pyrone-2,6-dicarboxylic acid, 2-pyrone-6-carboxylic acid, 4-pyrone-2-carboxylic acid 5-hydroxy-4-pyrone-5-carboxylic acid, 4-pyrone-2,6-dicarboxylic acid, 3-hydroxy-4-pyrone-2,6-dicarboxylic acid, thiophenecarboxylic acid, 2-pyrrolecarboxylic acid, 2,3-dimethylpyrrole-4-carboxylic acid, 2,4,5-trimethylpyrrole-3-propionic acid, 3-hydroxy-2-indolecarboxylic acid, 2,5-dioxo- -Methyl-3-pyrroline-3-propionic acid, 2-pyrrolidinecarboxylic acid, 4-hydroxyproline, 1-methylpyrrolidine-2-carboxylic acid, 5-carboxy-1-methylpyrrolidine-2-acetic acid, 2-pyridinecarboxylic acid Acid, 3-pyridinecarboxylic acid, 4-pyridinecarboxylic acid, pyridinedicarboxylic acid, pyridinetricarboxylic acid, pyridinepentacarboxylic acid, 1,2,5,6-tetrahydro-1-methylnicotinic acid, 2-quinolinecarboxylic acid, 4 -Quinoline carboxylic acid, 2-phenyl-4-quinoline carboxylic acid, 4-hydroxy-2-quinoline carboxylic acid, 6-methoxy-4-quinoline carboxylic acid, etc. are mentioned. These heterocyclic compounds having a carboxyl group are usually used in the form of a carboxylate. Examples of basic compounds used to form such carboxylates include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, and organic basic compounds such as triethylamine, monoethanolamine, triethanolamine, and triethylenediamine. be able to.

  The heterocyclic compound is preferably contained in the aqueous pigment ink (B) for ink jet textile printing in an amount of 0.01 to 20% by mass, more preferably in the range of 0.1 to 12% by mass.

  Moreover, various additives, such as surfactant, a viscosity modifier, an antifoamer, and a film-forming auxiliary agent, can also be added to the aqueous pigment ink (B) for inkjet textile printing of the present invention as necessary.

<Inkjet textile printing method of the present invention>
Next, the ink jet textile printing method of the present invention will be described based on its preferred embodiment.

The inkjet textile printing method of the present invention is
(1) A first step of printing an aqueous pigment ink (A) for inkjet textile printing on a fabric with an inkjet recording head, and an aqueous pigment ink (B) for inkjet textile printing on the fabric on which the ink (A) is printed. ) At least a step of heating the fabric on which image formation has been performed in the first step and the second step. Or
(2) A first step of printing the aqueous pigment ink (B) for inkjet textile printing on the fabric with an inkjet recording head; the aqueous pigment ink for inkjet textile printing (A) on the fabric on which the ink (B) is printed. ) At least a step of heating the fabric on which image formation has been performed in the first step and the second step.

  In the ink jet textile printing method of the present invention, first, a recording signal is obtained by using the water-based pigment ink (A) for ink-jet printing or the water-based pigment ink (B) for ink-jet textile printing on a fabric that has not been treated with the treatment liquid. Printing corresponding to is performed. Next, when the ink (A) is printed using the same ink jet printer, the aqueous pigment ink (B) for ink jet printing is printed on the printed fabric, and the ink (B) is printed. In this case, an image can be formed by printing the aqueous pigment ink (A) for inkjet textile printing on the printed fabric.

  Thus, in the ink jet textile printing method of the present invention, when the anionic water-based pigment ink (A) is first printed, it is preferable to print the cationic water-based pigment ink (B) on the one side first. When the cationic aqueous pigment ink (B) is printed, it is preferable to print the anionic aqueous pigment ink (A) thereon. If the anionic water-based pigment ink (A) is printed on the anionic water-based pigment ink (A), or the cation-based water-based pigment ink (B) is printed on the cation-based water-based pigment ink (B). When printed, there is a tendency for set-off.

  In addition, as said inkjet printer, it can carry out using a well-known inkjet printer. For example, there is an apparatus that applies energy corresponding to a recording signal to ink in a chamber of an ink jet recording head and generates droplets by the thermal energy.

  In the step of heating the fabric on which the image is formed according to the present invention, the fabric on which the image is formed is heated at 100 to 180 ° C. to fix the image on the fabric. The fabric can be heated by appropriately using known heating means such as an iron, a dryer, and a dryer.

  The dyed product obtained by the ink-jet printing method of the present invention comprising such steps does not show through and becomes a printed product having a high image density.

  The present invention will be described in more detail with reference to examples below, but the present invention is not limited to these examples. Unless otherwise specified, “%” means “mass%” and “part” means “part by mass”.

Preparation of aqueous white ink (A) for inkjet printing <Preparation of styrene-acrylic copolymer solution>
A styrene-acrylic copolymer having a solid content of 30% is prepared by dissolving 30 parts of a solid styrene-acrylic copolymer having a weight average molecular weight of 10,000 and an acid value of 200 mgKOH / g in a mixed solution of 20 parts of triethanolamine and 50 parts of water. A solution was obtained.

<Preparation of water-based white ink base (A) for inkjet printing>
20 parts of water is added to 50 parts of the styrene-acrylic copolymer solution and mixed to prepare a resin varnish for dispersing titanium oxide. Further, 30 parts of neutral titanium oxide (CR-90, manufactured by Ishihara Sangyo Co., Ltd.) is added. After stirring and mixing, the mixture was kneaded with a wet circulation mill to obtain an aqueous white ink base (A) for inkjet printing.

<Preparation of water-based white ink (A) for inkjet printing>
Water-based white ink base (A) for ink jet printing (A) 66.7 parts, glycerin 20 parts, butyl carbitol 4 parts, acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), water 8.3 parts were stirred and mixed to obtain an aqueous white ink (A) for inkjet printing.

Preparation of aqueous white ink (B) for inkjet printing <Preparation of aqueous white ink base (B) for inkjet printing>
10 parts of water was added to and mixed with 60 parts of a poly (diallylamine-acrylamide) copolymer (PAS-J-81L, manufactured by Nittobo Co., Ltd., solid content 25% solution) to prepare a resin varnish for dispersing titanium oxide, Further, 30 parts of neutral titanium oxide (CR-90, manufactured by Ishihara Sangyo Co., Ltd.) was added, mixed with stirring, and then kneaded with a wet circulation mill to obtain an aqueous white ink base (B) for inkjet printing.

<Preparation of aqueous white ink (B) -1 for inkjet printing>
Aqueous white ink for ink-jet printing (B) -1 is obtained by stirring and mixing 20 parts of glycerin, 7 parts of butyl carbitol and 6.3 parts of water to 66.7 parts of the water-based white ink base for ink-jet printing (B). It was.

<Preparation of aqueous white ink (B) -2 for inkjet printing>
Aqueous white ink for inkjet printing by mixing 66.7 parts of aqueous white ink base (B) for inkjet printing with 5 parts of pyrrolidone carboxylic acid sodium salt, 20 parts of glycerin, 7 parts of butyl carbitol and 1.3 parts of water. (B) -2 was obtained.

<Preparation of aqueous white ink (B) -3 for inkjet printing>
Aqueous white ink for inkjet printing by mixing 66.7 parts of aqueous white ink base (B) for inkjet printing with 5 parts of furancarboxylic acid sodium salt, 20 parts of glycerin, 7 parts of butyl carbitol and 1.3 parts of water. (B) -3 was obtained.

Preparation of water-based black ink (A) for inkjet printing <Preparation of styrene-acrylic copolymer solution>
A styrene-acrylic copolymer having a solid content of 30% is prepared by dissolving 30 parts of a solid styrene-acrylic copolymer having a weight average molecular weight of 10,000 and an acid value of 200 mgKOH / g in a mixed solution of 20 parts of triethanolamine and 50 parts of water. A solution was obtained.

<Preparation of water-based black ink base (A) for inkjet printing>
16.7 parts of water is added to 66.7 parts by mass of the styrene-acrylic copolymer solution and mixed to prepare a resin varnish for dispersing carbon black. Further, an acid-treated carbon black (MA100, pH 3.5, Mitsubishi Chemical Corporation). )) After adding 20 parts and stirring and mixing, kneading was performed with a wet circulation mill to obtain an aqueous black ink base (A) for ink jet printing.

<Preparation of water-based black ink (A) for inkjet printing>
Aqueous black ink for ink-jet printing (A) was obtained by stirring and mixing 20 parts of glycerin, 4 parts of butyl carbitol, 1 part of acetylenol E100, and 25 parts of water with 50 parts of water-based black ink base for ink-jet printing (A). .

Preparation of aqueous black ink (B) for inkjet printing <Preparation of aqueous white ink base (B) for inkjet printing>
Poly (diallylamine-acrylamide) copolymer (PAS-J-81L, manufactured by Nittobo Co., Ltd., solid content 25% solution) 80 parts of carbon black dispersing resin varnish, basic treated carbon black (Printtex 90, pH 9, After adding 20 parts (mixed by Degussa) and stirring and mixing, the mixture was kneaded with a wet circulation mill to obtain an aqueous black ink base (B) for inkjet printing.

<Preparation of water-based black ink (B) -1 for inkjet printing>
A water-based black ink for ink-jet printing (B) -1 was obtained by stirring and mixing 20 parts of glycerin, 7 parts of butyl carbitol and 23 parts of water to 50 parts of the water-based black ink base (B) for ink-jet printing.

<Preparation of water-based black ink (B) -2 for inkjet printing>
Aqueous black ink base for inkjet printing (B) 50 parts of aqueous black ink base for inkjet printing (B), 5 parts of pyrrolidone carboxylic acid sodium salt, 20 parts of glycerin, 7 parts of butyl carbitol and 18 parts of water are stirred and mixed. 2 was obtained.

<Preparation of water-based black ink (B) -3 for inkjet printing>
Aqueous black ink for ink-jet printing (B)-50 parts of water-based black ink base for ink-jet printing (B), 5 parts of sodium furancarboxylate, 20 parts of glycerin, 7 parts of butyl carbitol and 18 parts of water. 3 was obtained.

Preparation of treatment liquid <Preparation of treatment liquid (A)>
60 parts of poly (diallylamine-acrylamide) copolymer (PAS-J-81L, manufactured by Nittobo Co., Ltd., solid content 25% solution), 20 parts of glycerin, 7 parts of butyl carbitol, and 13 parts of water were mixed with stirring. A treatment liquid (A) was obtained.

<Preparation of treatment liquid (B)>
15 parts of pyrrolidone carboxylic acid sodium salt, 20 parts of glycerin, 4 parts of butyl carbitol, 1 part of acetylenol E100 and 60 parts of water were stirred and mixed to obtain a treatment liquid (B).

<Preparation of treatment liquid (C)>
Pyrrolidone carboxylic acid sodium salt 5 parts, poly (diallylamine-acrylamide) copolymer (PAS-J-81L, manufactured by Nittobo Co., Ltd., 25% solid content solution) 40 parts, glycerin 20 parts, butyl carbitol 7 parts, 28 parts of water was stirred and mixed to obtain a treatment liquid (C).

  White ink for inkjet textile printing (A) obtained above, white ink for inkjet textile printing (B) -1, (B) -2, (B) -3, black ink for inkjet textile printing (A), black for inkjet textile printing About ink (B) -1, (B) -2, (B) -3, when the viscosity was measured at 25 degreeC using the Toki Sangyo Co., Ltd. R115 type | mold viscosity meter (RE107), it was 10-13 mPa *. s range.

Printed Examples of Examples 1 to 5 and Comparative Examples 1 to 4 Black ink (100% cotton, plain), white ink for inkjet printing (A), white ink for inkjet printing (B) -1, and (B)- 2, (B) -3, using treatment liquids (A) to (C), printing was performed using a printer manufactured by SPECTRA so as to have the combinations shown in Table 1, and Examples 1 to 5 and Comparative Examples 1 to 4 prints were obtained.

Printed Examples of Examples 6 to 10 and Comparative Examples 5 to 8 On a white fabric (100% cotton, plain), black ink for inkjet printing (A), black ink for inkjet printing (B) -1, and (B)- 2, (B) -3, using the processing liquids (A) to (C), solid printing was performed using a printer manufactured by SPECTRA so as to have the combinations shown in Table 1, and Examples 6 to 10 and Comparative Example 5 -8 prints were obtained.

<Evaluation of printed matter>
<Image density of printed matter of Examples 1-5 and Comparative Examples 1-4>
About the solid part of the printed matter of Examples 1-5 and Comparative Examples 1-4, the lightness (L *) was measured using the color difference meter (DR-321, Minolta Co., Ltd.), and the value is shown in Table 1. Indicated.

<Image density of printed matter of Examples 6 to 10 and Comparative Examples 5 to 8>
About the solid part of the printed matter of Examples 6-10 and Comparative Examples 5-8, reflection density was measured using the Macbeth reflection densitometer RT-918, and the value was shown in Table 1.

<Inversion>
About the solid part of the printed matter of Examples 1-10 and Comparative Examples 1-8, it was observed visually whether the ink had moved to the back of the printed matter.
○: Ink has not moved to the back of the printed matter ×: Ink has moved to the back of the printed matter

  ADVANTAGE OF THE INVENTION According to this invention, the dyeing | staining obtained by the inkjet printing method and this inkjet dyeing method for obtaining the dyeing | staining which does not show through and has a high image density is provided.

Claims (3)

  Ink jet recording ink (ink A) containing a pigment, an anionic aqueous resin and an aqueous medium using an ink jet recording method, and a neutral and / or basic treated pigment of the same color as the pigment of ink A, cationic An ink-jet printing method comprising heating an ink-jet recording ink (ink B) containing an aqueous resin and an aqueous medium after printing the same place on a fabric to form an image. The ink-jet printing method according to claim 1, wherein the ink B is an ink for ink-jet recording further containing a heterocyclic compound represented by the general formula (1).

[Wherein, X represents O, NH, NR (wherein R represents an alkyl group) or S. Y represents an alkylene group. m represents an integer of 0 to 5, n represents an integer of 0 to 5, and m + n = 1 to 5. R ¹ represents a hydroxyl group, an alkyl group or an aryl group. p represents an integer of 0 to 7, and p R ¹ may be the same or different. C represents a carbon atom constituting a heterocyclic ring together with X, and q represents an integer of 3 to 9. The carbon atom C may form a C═O group, and the bond between two adjacent carbon atoms may be a single bond or a double bond. m + n + p + q ≦ (the total number of atoms constituting the heterocyclic ring−1)].   An ink-jet printed matter obtained by the ink-jet printing method according to claim 1 or 2.