JP2011105915A - Ink composition for inkjet textile printing, method of inkjet textile printing, and inkjet textile printed material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ink composition for inkjet textile printing, the composition giving high sharpness and color density of a printed image in a textile printed material without damaging texture of cloth, and having high durability against external stress such as severe scratch or rubbing, and durability against external stress by washing and against a detergent (referred to as color fastness to washing). <P>SOLUTION: The ink composition for inkjet textile printing contains a color pigment, a polymer dispersant, a binder component, an aqueous medium and a polyalkylsiloxane emulsion wax. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to an ink composition for inkjet textile printing, and more specifically, as a printed textile, the texture of the fabric is not impaired, the printed image maintains a clear and high color density, and the ink coating film is scratched or rubbed. The present invention relates to an ink composition for ink jet textile printing which is excellent in durability and fastness to washing.

Conventionally, as a textile printing method, hand-drawing and screen printing methods have been mainly used, but recently, an inkjet recording method that can be dyed even on a long fabric in a very simple manner is used. There is a lot to do. As ink colorants, water-based inks using pigments that have good light resistance and good fixability to fabrics and that can be easily post-processed such as water washing and waste liquid treatment are used.

However, in the above water-based ink, the pigment is solid colored fine particles unlike the dye that is colored by directly dyeing the fibers of the fabric, and is colored by binding to the fibers of the fabric with the binding component. In addition, there is a problem that the pigment is peeled off from the fiber of the fabric by washing or the like, and the printed image becomes blurry or the color density is liable to decrease. In particular, recently, even a dark-colored fabric is not discharged, it is dyed white using a white pigment-type water-based ink, and the color-type water-based ink of each color is printed thereon to make the printed image stand out clearly. Have been proposed (see, for example, Patent Documents 1 to 4). However, in this method, more pigment particles are bound to the fibers of the fabric, so that the above problem is likely to occur.

Therefore, the present inventors first tried to solve this problem by a method of increasing the binding force between the white pigment of the white ink used as the dyeing base and the fiber of the fabric and the cohesive strength of the ink film, A method of dyeing a fabric treated with a treatment liquid containing a cationic compound such as a metal ion or a cationic resin white with a white pigment-type aqueous ink containing a resin emulsion has been proposed (for example, patents). Reference 5). However, such a method for increasing the binding force and cohesive force sometimes impairs the texture of the fabric.

The present inventors further provide a water-soluble polyvalent metal salt, a nonionic resin emulsion having a glass transition temperature of 0 ° C. or lower, and an aqueous medium so as to obtain a highly functional printed matter with improved fabric texture. A method has been proposed in which a fabric treated with a treatment liquid containing water is directly dyed with a white pigment-type aqueous ink containing a resin emulsion (see, for example, Patent Document 6).

Although this method has a significant improvement effect on the above-mentioned problems, when more severe conditions are required, for example, when printing clothing such as T-shirts, it has a texture and durability against scratches and washing. Further improvements are needed when more demanding. As a result, as described above, there is a limit to improving both the texture and durability of the method of increasing the binding force between the pigment and the fabric fiber and the cohesive strength of the ink film, and it is hoped that a new method will solve the problem. It is rare.

Japanese Patent Application Laid-Open No. 07-119047 JP 2000-226781 A JP 2001-098473 A JP 2005-320656 A JP 2008-195767 A JP 2008-266853 A

Therefore, the problem to be solved by the present invention is that the printed image has high sharpness and color density of the printed image without impairing the texture of the fabric, and further has durability against external stresses such as more severe scratches and rubbing. It is to provide an ink composition for ink jet textile printing having durability, durability against washing and external stress (referred to as washing fastness).

As a result of intensive studies to solve the above problems, the present inventors have solved all of the problems of the present invention only with the conventional methods for increasing the binding force between the pigment and the fabric fibers and the cohesive strength of the ink film. Therefore, it was decided to try to improve the durability of the ink film by introducing the effect of the scratch resistance of the wax as a new technique.
However, even when many waxes are added to the ink in an amount that is expected to increase the durability of the ink film, the durability of the ink film cannot be sufficiently improved. In addition, when a water-repellent wax is added to the ink in an amount that sufficiently enhances the durability of the ink film, in the case of the water-based type, between the white ink that is the base and the color ink that is printed on top of it. In addition, there is a new problem that a good printed image cannot be obtained.

On the other hand, when a polyalkylsiloxane emulsion wax was added, it was found that even if an amount that sufficiently enhances the durability of the ink film was added, a good printed image could be obtained without repelling between inks. When this material is used, even if the binding force between the pigment and the fiber of the fabric and the cohesive strength of the ink film are kept within an appropriate range, the durability of the ink film can be obtained and the texture of the fabric is not impaired. I also found out.
Thus, the present inventors have found that all of the problems of the present invention can be solved by using an aqueous ink-jet printing ink composition containing a polyalkylsiloxane emulsion wax, and have completed the present invention. is there.

That is, the present invention relates to an ink composition for ink jet textile printing comprising a color pigment, a polymer dispersant, a binder component, an aqueous medium, and a polyalkylsiloxane emulsion wax.
Moreover, it is preferable that content of the said polyalkylsiloxane emulsion wax is 0.05-1 mass% in solid content.
The binding component is preferably a self-crosslinking anionic resin emulsion and / or a nonionic resin emulsion.
The polymer dispersant is preferably a polymer dispersant obtained by neutralizing an anionic water-soluble resin with a basic compound.
The present invention also relates to at least one resin component selected from the group consisting of 1) a water-soluble polyvalent metal salt, 2) a nonionic resin emulsion, an anionic resin emulsion, and a cellulose resin, and 3) a nonionic surfactant. At least one surfactant component selected from the group consisting of an agent, an anionic surfactant and an amphoteric surfactant, and 4) an inkjet printing treatment liquid containing an aqueous medium, and a printing area of the inkjet ink of the fabric A step of heating the fabric coated with the treatment liquid for inkjet textile printing, and a step of printing on the print area coated with the treatment liquid for inkjet textile printing using the ink composition for inkjet textile printing. The present invention also relates to an ink-jet printing method comprising a step of heating a printed fabric.
The present invention also relates to an ink-jet printed material obtained by the above-described ink-jet printing method.

Hereinafter, the present invention will be described in more detail.
<Ink composition for inkjet textile printing>
The ink composition for inkjet textile printing of the present invention contains a polymer dispersant, a color pigment, a binder component, an aqueous medium, and a polyalkylsiloxane emulsion wax.
Hereinafter, the ink composition for ink jet textile printing of the present invention will be described in detail separately for white (ink white ink composition for ink jet textile printing) and other than white (color ink composition for ink jet textile printing other than white). .

White ink composition for ink jet textile printing (construction material and manufacturing method)
In the present invention, the white ink composition for inkjet textile printing contains a white pigment as a color pigment, a polymer dispersant, a binder component, an aqueous medium, and a polyalkylsiloxane emulsion wax.
Examples of the white pigment include white pigments having high shielding properties such as titanium dioxide and zinc oxide. Of these, titanium dioxide is preferable as the white pigment because high light-shielding properties can be obtained.
As said titanium dioxide, what is conventionally used for the ink for inkjets, and various titanium dioxides, such as a rutile type and an anatase type, are alumina / silica (mass ratio) = 100 / 0-33.3 / 66. 7 having a mean particle diameter of 0.21 to 0.28 μm and an oil absorption of 15 to 33, which has been surface-coated with a surface treatment agent of No. 7. Here, the oil absorption amount is an oil absorption amount defined in JIS K5101.
The content of the white pigment is preferably in the range of 10 to 30% by mass in the white ink composition for ink jet textile printing.

As the polymer dispersant, a polymer dispersant obtained by neutralizing an anionic water-soluble resin with a basic compound, preferably an anionic water-soluble resin having a glass transition temperature of 0 to 80 ° C. with a basic compound. A polymer dispersant obtained by neutralization can be used.

Examples of the anionic water-soluble resin include carboxyl groups such as acrylic acid, methacrylic acid, itaconic acid, maleic acid, maleic anhydride, maleic acid monoalkyl ester, citraconic acid, citraconic anhydride, and citraconic acid monoalkyl ester. One or more unsaturated monomers (including an acid anhydride group-containing unsaturated monomer that opens to give a carboxyl group) and styrene-based monomers such as styrene, α-methylstyrene, and vinyltoluene Aralkyl methacrylate or acrylate such as benzyl methacrylate, benzyl acrylate, methyl methacrylate, butyl methacrylate, 2-ethylhexyl methacrylate, stearyl methacrylate, lauryl methacrylate, methyl acrylate, butyl acrylate, 2-ethylhexyl Copolymers obtained by reacting a mixture with one or more unsaturated monomers selected from alkyl methacrylates such as acrylates, stearyl acrylates, lauryl acrylates, or acrylates, preferably having a glass transition temperature of 0 to Examples thereof include a copolymer obtained by reacting a mixture of monomers selected to be 80 ° C.

Specific examples of such anionic water-soluble resin include (meth) acrylic acid alkyl ester- (meth) acrylic acid copolymer, styrene- (meth) acrylic acid copolymer, styrene- (meth) acrylic acid- (Meth) acrylic acid alkyl ester copolymer, styrene-maleic acid- (meth) acrylic acid alkyl ester copolymer, styrene-maleic acid half ester copolymer, styrene-maleic acid half ester-alkyl (meth) acrylate Examples thereof include ester copolymers, styrene- (meth) acrylic acid- (meth) acrylic acid alkyl ester-benzyl (meth) acrylate copolymers, and the like.

In addition, when the glass transition temperature of the anionic aqueous resin is less than 0 ° C., fusion between dispersed white pigment particles is likely to occur, and storage stability and ejection stability may be reduced. On the other hand, when it exceeds 80 degreeC, there exists a possibility that the feel of the printed material obtained may fall.

Further, among these anionic water-soluble resins, those having an acid value of 100 to 300 mgKOH / g are preferable from the viewpoint of good solubility in an aqueous medium and water resistance of the dyed product obtained. From the viewpoint of pigment dispersibility and pigment dispersion stability, those having a weight average molecular weight of 5,000 to 30,000 are preferred.

Examples of the basic compound 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.

The content of the polymer dispersant is preferably 10 to 40 parts by mass, more preferably 15 to 30 parts by mass with respect to 100 parts by mass of the white pigment. When the content of the polymer dispersant is less than 10 parts by mass, the dispersibility of the pigment in the aqueous medium is reduced. On the other hand, when the content exceeds 40 parts by mass, the viscosity increases, Since the amount of the aqueous medium to be described later is limited, washing fastness and ejection stability may be reduced.

Examples of the binder component include self-crosslinking anionic resin emulsions and / or nonionic resin emulsions.
The self-crosslinking nonionic resin emulsion preferably has a glass transition temperature of 20 ° C. or lower, and the self-crosslinking anionic resin emulsion preferably has a glass transition temperature of 0 ° C. or lower. When the glass transition temperature of the nonionic resin emulsion exceeds 20 ° C, or when the glass transition temperature of the anionic resin emulsion exceeds 0 ° C, the texture of the fabric may be lowered.

Moreover, it is desirable that the content (mass ratio) of the nonionic resin emulsion and the anionic resin emulsion with respect to the content of the polymer dispersant satisfy the following formulas (1) to (3). Here, the contents of the nonionic resin emulsion and the anionic resin emulsion are not zero at the same time.
Formula (1) (content of polymer dispersant): [(content of nonionic resin emulsion) + (content of anionic resin emulsion)] = 1: 3 to 1:10
Formula (2) (content of nonionic resin emulsion) / (content of polymer dispersant) ≦ 8
Formula (3) (content of anionic resin emulsion) / (content of polymer dispersant) ≦ 12 In the above formula (1), a nonionic resin emulsion and an anionic resin emulsion with respect to the content of the polymer dispersant When the total content of the nonionic resin emulsion and the anionic resin emulsion is less than 3 with respect to the polymer dispersant content of 1, the sufficient fastness to washing cannot be obtained. There is a fear. On the other hand, when the total content of the nonionic resin emulsion and the anionic resin emulsion is larger than 10 with respect to the content 1 of the polymer dispersant, a sufficient pigment concentration cannot be ensured due to ink viscosity restrictions, or the treatment liquid Aggregation / precipitation with respect to the surface becomes insufficient, and a high image density may not be obtained.

Examples of the resin component of the nonionic resin emulsion and the anionic resin emulsion include acrylic resin, methacrylic resin, styrene resin, styrene-acrylic resin (styrene-acrylic acid copolymer, styrene-acrylic acid- Alkyl acrylate copolymer, styrene-maleic acid copolymer, styrene-maleic acid-acrylic acid alkyl ester, styrene-methacrylic acid copolymer, styrene-methacrylic acid-alkyl acrylate copolymer, styrene-maleic acid Half-ester copolymers, etc.) Urethane resins, polyester resins, olefin resins, vinyl acetate resins, acrylamide resins, epoxy resins and the like. Of these, acrylic resins, methacrylic resins, styrene resins, and styrene-acrylic resins are preferable. These may be used alone or in combination of two or more. In addition, when higher water resistance and washing fastness are required, it is preferable to introduce into these emulsions a crosslinking component that is crosslinked by heat within a range in which the texture does not decrease.

Examples of the polyalkylsiloxane emulsion wax include water-dispersed polyalkylsiloxane emulsion wax. The white ink composition for inkjet textile printing containing the water-dispersed polyalkylsiloxane emulsion wax is compared with the white ink composition for inkjet textile printing containing polyethylene wax, polypropylene wax, etc. used in flexographic ink for paper. After printing, the effect of floating on the surface and arranging is high.

The content of the polyalkylsiloxane emulsion is preferably 0.05 to 1% by mass, more preferably 0.15 to 0.35% by mass in solid content in the white ink composition for inkjet printing. It is.
When the content of the polyalkylsiloxane emulsion is less than 0.05% by mass, scratch resistance and scratch resistance may be insufficient. On the other hand, when the content exceeds 1% by mass, other ink-jet printing ink compositions may be used. This is not preferable because the suitability for overlaying with a product is lowered.

There is no limitation in particular as said aqueous medium, The water or the mixture of water and a water miscible solvent conventionally used in the inkjet field | area conventionally can be mentioned.
Specific examples of the water-miscible solvent include lower alcohols such as ethanol and propanol, polyhydric alcohols such as glycerol, (poly) alkylene glycols such as (poly) ethylene glycol and (poly) propylene glycol, and alkyl ethers thereof. Etc., and these may be used alone or in combination of two or more.

In the white ink for ink-jet printing of the present invention, the total solid content of the white pigment, polymer dispersant, binder component and polyalkylsiloxane emulsion wax described above is 25 to 45% by mass in the white ink for ink-jet printing. A range is preferable. If the total solid content of the white pigment, polymer dispersant, binder and polyalkylsiloxane emulsion wax is less than 25% by mass, the print density of the printed matter on the fabric may decrease. On the other hand, if it exceeds 45% by mass, the viscosity tends to be high, and the discharge stability may be lowered.

The white ink for inkjet textile printing preferably further contains a surfactant from the viewpoint of obtaining good ejection stability. Examples of the surfactant include an anionic surfactant and a nonionic surfactant.
Among these, nonionic surfactants are preferred from the viewpoint of obtaining the above-mentioned white ink composition for ink jet textile printing with low ejection stability and foaming / foaming, and specifically, acetylene glycol surfactants, acetylene alcohol interfaces. Activator, polyoxyethylene nonyl phenyl ether, polyoxyethylene octyl phenyl ether, polyoxyethylene dodecyl phenyl ether, polyoxyethylene alkyl allyl ether, polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene alkyl ether, poly Ether type such as oxyalkylene alkyl ether; polyoxyethylene oleic acid, polyoxyethylene oleic acid ester, polyoxyethylene distearic acid ester, sorbitan laur Esters, sorbitan monostearate, sorbitan monooleate, sorbitan sesquioleate, polyoxyethylene monooleate, polyoxyethylene stearate, etc .; polyether-modified siloxane surfactants such as dimethylpolysiloxane; other fluorine Examples thereof include fluorine-containing surfactants such as alkyl esters and perfluoroalkyl carboxylates. The said nonionic surfactant can also use 1 type or 2 types or more together.
Among these, nonionic surfactants having an HLB of 13 or more are more preferable, and polyoxyethylene alkyl ethers and ethylene oxide adducts of acetylene glycol are particularly preferable.

The content of the surfactant is preferably in the range of 0.1 to 2.0% by mass in the white ink composition for ink jet textile printing. If the amount is less than 0.1% by mass, a sufficient surface activity (reducing surface tension) effect cannot be obtained. On the other hand, if it exceeds 2.0% by mass, the ejection stability may be lowered.

Moreover, various additives, such as a viscosity modifier, an antifoamer, and a film-forming auxiliary agent, can also be added to the white ink composition for ink jet textile printing as necessary.
Furthermore, the white ink composition for inkjet textile printing preferably has a viscosity in the range of 5 to 20 mPa · s.

The white ink composition for inkjet textile printing can be produced by a conventionally used method. For example, the above-mentioned white pigment, polymer dispersant, binder component, polyalkylsiloxane emulsion wax, aqueous medium, if necessary Surfactants, viscosity modifiers, antifoaming agents, etc., and various dispersing / stirring machines such as bead mill, ball mill, sand mill, attritor, roll mill, agitator, Henschel mixer, colloid mill, ultrasonic homogenizer, Examples thereof include a method of obtaining a white ink composition for inkjet printing by dispersing using a high-pressure homogenizer, a pearl mill, and the like, and further adding and mixing the remaining anionic resin emulsion and / or nonionic resin emulsion.

Color ink composition for inkjet textiles other than white (construction material and manufacturing method)
The color ink composition for inkjet printing other than white of the present invention contains a color pigment other than white as a color pigment, a polymer dispersant, a binder component, an aqueous medium, and a polyalkylsiloxane emulsion wax.
Examples of the color pigments other than white include black pigment carbon black and organic pigments other than white. For example, the organic pigments other than white include azo pigments such as azo lakes, insoluble azo pigments, condensed azo pigments, chelate azo pigments, phthalocyanine pigments, perylene pigments, anthraquinone pigments, quinacridone pigments, dioxazine pigments, thioindigo pigments, isoindolinone pigments. And polycyclic pigments such as quinaphthalone pigments, basic lakes, dye lakes such as acid dye lakes, and nitro pigments.

In particular, from the viewpoint of enabling a clear hue expression, C.I. I. Red pigments such as Pigment Red 2, 3, 5, 16, 23, 31, 49, 57, 63, 122; I. Pigment Blue 1, 2, 15: 3, 16, 17 and the like blue pigments; C.I. I. Pigment
Yellow pigments such as Yellow 3, 4, 5, 7, 17, 50, 51, 74, 81, 98, 105, 180 can be used.
In the color ink composition for inkjet printing other than white, the content of the color pigment other than white is preferably in the range of 10 to 30% by mass in the color ink composition for inkjet printing other than white.

In the color ink composition for ink jet textiles other than white, the polymer dispersant is, for example, a high polymer obtained by neutralizing an anionic water-soluble resin having a weight average molecular weight of 5,000 to 30,000 with a basic compound. Mention may be made of molecular dispersants. The anionic water-soluble resin preferably has a glass transition temperature of 40 to 90 ° C. and an acid value of 100 to 300 mgKOH / g.
Here, as the anionic water-soluble resin, for example, a monomer similar to the monomer described in the anionic water-soluble resin of the white ink composition for ink jet printing has a glass transition temperature and an acid value in the above range. And a copolymer obtained by reacting such that the weight average molecular weight is in the above range. Moreover, the thing similar to what was mentioned by the said white ink composition for inkjet textile printing of the specific example of this copolymer is mentioned.

The anionic water-soluble resin in the color ink composition for inkjet printing other than white has a glass transition temperature of 50 to 90 ° C., an acid value of 130 to 240 mgKOH / g, and a weight average molecular weight of 8,000 to 20,000. It is more preferable.

When the acid value of the anionic water-soluble resin is less than 100 mgKOH / g, the solubility of the resin in the aqueous medium is reduced. On the other hand, when the acid value exceeds 300 mgKOH / g, the water resistance of the printed matter printed on the obtained fabric is reduced. May decrease.
Further, when the glass transition temperature of the anionic water-soluble resin is less than 40 ° C., the storage stability and the discharge stability are lowered due to aggregation of the dispersed color pigment particles other than white, and on the other hand, when the temperature exceeds 90 ° C. There is a possibility that the texture of the printed matter may be lowered.
Further, when the weight average molecular weight of the anionic water-soluble resin is less than 5,000, the pigment dispersion stability is lowered, while when it exceeds 30,000, the pigment dispersibility in an aqueous medium may be lowered.
As the basic compound, the same compounds as those described for the polymer dispersant of the white ink composition for ink jet textile printing can be used.

The content of the polymer dispersant is preferably 10 to 40 parts by mass, more preferably 15 to 30 parts by mass with respect to 100 parts by mass of the color pigment other than white. When the amount is less than 10 parts by mass, the dispersibility of the pigment in the aqueous medium decreases. On the other hand, when the amount exceeds 40 parts by mass, the viscosity increases, and the amount of the anionic resin emulsion and nonionic resin emulsion to be described later is described later. Since the amount of the aqueous medium is limited, washing fastness and ejection stability may be reduced.

In the color ink composition for ink jet textiles other than white, the binder component may be an anionic resin emulsion having a glass transition temperature of 0 ° C. or lower and / or a nonionic resin emulsion having a glass transition temperature of 0 ° C. or lower. preferable. When the glass transition temperature of the resin emulsion exceeds 0 ° C., the fabric texture may be lowered.

Further, in the color ink composition for inkjet printing other than white, the content (solid content mass ratio) of the anionic resin emulsion and the nonionic resin emulsion with respect to the colored pigment other than the white is represented by the following formula (4). It is preferable to satisfy the range. Here, the contents of the anionic resin emulsion and the nonionic resin emulsion are not zero at the same time.
Formula (4) (content of colored pigment other than white): [(content of anionic resin emulsion) + (content of nonionic resin emulsion)] = 1: 3 to 1: 6
The total content (solid content ratio) of the anionic resin emulsion and the nonionic resin emulsion with respect to the colored pigment other than the white is the anionic resin emulsion and the nonionic resin with respect to the content 1 of the organic pigment other than the white. When the total content with the emulsion is less than 3, sufficient washing fastness may not be obtained. On the other hand, when the total content of the anionic resin emulsion and the nonionic resin emulsion is larger than 6 with respect to the content 1 of the organic pigment other than white, a sufficient pigment concentration is obtained due to restrictions on ink viscosity and blending frame. There is a possibility that the ejection stability cannot be obtained because the total solid content in the ink cannot be secured or the total solid content in the ink becomes high.

Examples of such anionic resin emulsion and nonionic resin emulsion are the same as the anionic resin emulsion and nonionic resin emulsion described in the white ink composition for ink jet printing satisfying the glass transition temperature ( In addition, when higher water resistance and washing fastness are required, it is preferable to use those emulsions in which a crosslinking component that is crosslinked by heat is introduced to the extent that the texture does not decrease.

Examples of the polyalkylsiloxane emulsion wax in the color ink composition for inkjet printing other than white include the same polyalkylsiloxane emulsion wax that can be used in the above-described white ink composition for inkjet printing.

The content of the polyalkylsiloxane emulsion is preferably 0.05 to 1% by mass, more preferably 0.15 to 0.35% by mass in the solid color ink composition for inkjet printing other than the white color. % Range.
If the content of the polyalkylsiloxane emulsion is less than 0.05% by mass, the effect on scratch resistance and scratch resistance may be reduced. On the other hand, if it exceeds 1% by mass, the overlayability with other ink-jet textile ink compositions may be reduced.

The color ink composition for ink jet textiles other than the white color preferably further contains a surfactant from the viewpoint of obtaining good ejection stability. Examples of the surfactant include an anionic surfactant and a nonionic surfactant.

The surfactant is preferably a nonionic surfactant from the viewpoint of obtaining a color ink composition for inkjet printing other than white, which has low ejection stability and less foaming / foaming. Specifically, the white ink for inkjet printing is preferred. The same nonionic surfactant as described in the composition can be used.
The content of the surfactant is preferably in the range of 0.1 to 2.0% by mass in the color ink composition for inkjet printing other than the white color. If it is less than 0.1% by mass, a sufficient surface activity (reducing surface tension) effect cannot be obtained. On the other hand, if it is more than 2.0% by mass, the ejection stability may be lowered.

In the color ink composition for inkjet textiles other than white, the aqueous medium is not particularly limited, and examples thereof include the same aqueous medium as described in the white ink composition for inkjet textile printing.

In the above-described color ink composition for inkjet printing other than white, the total solid content of the above-described colored pigment other than white, polymer dispersant, binder component and polyalkylsiloxane emulsion wax is used for inkjet printing other than the above white The color ink composition preferably has a range of 10 to 35% by mass. When the content is less than 10% by mass, the print density of the printed matter printed on the fabric is lowered, whereas when it exceeds 35% by mass, the ejection stability may be lowered.
Moreover, various additives, such as a viscosity modifier, an antifoamer, and a film-forming auxiliary agent, can also be added to the color ink composition for ink jet textiles other than the white color as necessary.

The viscosity of the color ink composition for inkjet textile printing other than white is preferably in the range of 2 to 20 mPa · s. The surface tension of the color ink composition for ink jet textiles other than white is preferably in the range of 25 to 45 mN / m.

The color ink composition for ink jet textile printing of the present invention other than the above-described white can be produced by a general method, for example, the above-mentioned colored pigment other than white, a polymer dispersant, a binder component, a polyalkylsiloxane emulsion. Wax, aqueous medium, if necessary, surfactant, viscosity modifier, antifoaming agent, etc. are mixed, and various dispersing / stirring machines (eg, bead mill, ball mill, sand mill, attritor, roll mill, agitator, Henschel mixer, colloid) For example, a method using a mill, an ultrasonic homogenizer, an ultra-high pressure homogenizer, a pearl mill, etc.) and further adding and mixing the remaining material such as a resin emulsion.

Here, the glass transition temperature, acid value, and weight average molecular weight in the present specification can be determined by the following methods.
<Glass transition temperature>
The glass transition temperature is a theoretical glass transition temperature obtained by the following wood equation.
Wood formula: 1 / Tg = W1 / Tg1 + W2 / Tg2 + W3 / Tg3 +... + Wx / Tgx
(Wherein Tg1 to Tgx are the glass transition temperatures of the respective homopolymers of monomers 1, 2, 3,... X constituting the copolymer, and W1 to Wx are the monomers 1, 2, 3,. ..X each mass fraction, Tg represents the theoretical glass transition temperature (however, the glass transition temperature in the wood equation is an absolute temperature)
<Acid value>
The acid value is a theoretical acid value obtained by calculation from the copolymer composition.
<Weight average molecular weight>
The weight average molecular weight can be measured by a gel permeation chromatography (GPC) method. As an example, chromatography can be performed using Water 2690 (manufactured by Waters) as a GPC apparatus and PLgel 5μ MIXED-D (manufactured by Polymer Laboratories) as a column, and the weight average molecular weight in terms of polystyrene can be obtained.

<Inkjet printing method>
Next, the ink jet textile printing method will be described.
Examples of the ink jet textile printing method include a step of applying a treatment liquid for ink jet textile printing, which will be described later, to at least an ink jet ink printing region of a fabric, a step of heating the fabric coated with the treatment liquid, and a step of applying the treatment liquid. A method including a step of printing on the attached printing region using the ink composition for inkjet textile printing of the present invention and a step of heating the printed fabric can be exemplified.
Such an ink jet textile printing method is also one aspect of the present invention.

When printing a color ink composition for ink jet textile printing other than white as the ink composition for ink jet textile printing, the step of printing the ink composition for ink jet textile printing of the present invention prints the white ink composition for ink jet textile printing. And a step of printing a color ink composition for inkjet textile printing other than white.

There is no particular limitation on the method for applying the ink-jet printing treatment liquid to the print region of the ink-jet ink of the fabric, and generally known methods can be used. The printing area of the inkjet ink of the fabric refers to an area where inkjet ink is printed.
The method of heating the fabric coated with the treatment liquid is not particularly limited, and is a method of immersing the cloth in the treatment liquid, and various coating machines (inkjet) on the entire surface or part of the fabric cloth (inkjet ink printing area). (Including printers).
The main purpose of heating the fabric to which the treatment liquid of the present invention has been applied is drying, and the heating conditions are not particularly limited. For example, the heating can be performed at about 150 to 180 ° C.
The amount of the ink-jet printing treatment liquid applied is suitably in the range of 10 to 50 g / m ^{2 by} weight after drying. If the amount of the treatment liquid for inkjet textile printing is less than the above range, the image density is not sufficiently improved, and the water resistance and washing fastness tend to be insufficient. On the other hand, if the amount exceeds the above range, the texture tends to be impaired. There is.
There is no particular limitation on the method of printing on the printing region to which the above-described inkjet printing treatment liquid has been applied using the ink composition for inkjet printing, and a method for printing with a known inkjet printer can be used. For example, there is an apparatus that applies energy corresponding to a recording signal to ink in a room of an ink jet recording head and generates droplets by the thermal energy.
Moreover, it does not specifically limit as a method of heating the printed fabric, It is carried out by appropriately using known heating means such as a heat press, a dryer, and a dryer, which are known heating means, for example, 150 to 180 ° C. About 30 to 120 seconds, and the image is fixed on the fabric.

(Materials used in inkjet printing methods)
<Fabric>
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.

<Ink composition for inkjet textile printing>
As the ink composition for inkjet printing, the white ink composition for inkjet printing described above and the color ink composition for inkjet printing other than white can be used.

<Inkjet textile processing solution>
The processing liquid for inkjet printing includes 1) a water-soluble polyvalent metal salt, 2) at least one resin component selected from the group consisting of a nonionic resin emulsion, an anionic resin emulsion, and a cellulose resin, and 3) a nonionic resin. There can be used an inkjet printing processing solution containing at least one surfactant component selected from the group consisting of a surfactant, an anionic surfactant and an amphoteric surfactant, and 4) an aqueous medium.

As the water-soluble polyvalent metal salt, a known compound in the field of ink jet textiles can be used, and examples thereof include dissociable salts of alkaline earth metals such as Ca, Mg and Ba. Representative examples of such compounds include calcium salts such as calcium nitrate, CaCl ₂ , Ca (OH) ₂ , (CH ₃ COO) ₂ Ca, MgCl ₂ , Mg (OH) ₂ , (CH ₃ COO) Magnesium salts such as ₂ Mg, BaCl _{2 and the} like. Of these, calcium salts are preferable. Particularly preferred are calcium salts such as calcium nitrate which are colorless crystals and have hygroscopicity due to the problem of salt precipitation on the fabric after drying of the treatment liquid coated surface.
The content of the water-soluble polyvalent metal salt in the treatment liquid is not particularly limited. For example, the water-soluble polyvalent metal salt is about 2 to 20% by mass in the treatment liquid.

The treatment liquid for inkjet printing contains at least one resin component selected from the group consisting of a nonionic resin emulsion, an anionic resin emulsion, and carboxymethylcellulose. By using such a resin component, the water-soluble polyvalent metal salt having hygroscopicity, and a surfactant described later as the components of the treatment liquid, it is possible to satisfactorily prevent the trace of the fabric. Moreover, when it processes with the said processing liquid and it prints by the printing of an inkjet ink, the printed matter excellent in the texture of a cloth, the image density, the tolerance of an ink coating film, and wash fastness can be obtained.
Among the above resin components, nonionic resin emulsions and anionic resin emulsions are preferable.

The nonionic resin emulsion and the anionic resin emulsion include acrylic resin, methacrylic resin, styrene resin, styrene-acrylic resin (styrene-acrylic acid copolymer, styrene-acrylic acid-acrylic) as resin components. Acid alkyl ester copolymer, styrene-maleic acid copolymer, styrene-maleic acid-acrylic acid alkyl ester copolymer, styrene-methacrylic acid copolymer, styrene-methacrylic acid-acrylic acid alkyl ester copolymer, styrene -Maleic acid-half ester copolymer, etc.), urethane resins, polyester resins, olefin resins, vinyl acetate resins, acrylamide resins, epoxy resins and the like.
Of these, acrylic resins, methacrylic resins, styrene resins, and styrene-acrylic resins are preferable. These may be used alone or in combination of two or more. In addition, when higher water resistance and washing fastness are required, it is preferable to introduce into these emulsions a crosslinking component that is crosslinked by heat within a range in which the texture does not decrease.

Further, the glass transition temperature of the nonionic resin emulsion or the anionic resin emulsion is preferably 20 ° C. or less from the viewpoint that the fabric feels good, and the total resin amount of the resin emulsion in the treatment liquid is 3 or less. When it exceeds mass%, it is preferable that the glass transition temperature of the said nonionic resin emulsion and anionic resin emulsion is 0 degrees C or less. When the total resin amount of the resin emulsion in the treatment liquid exceeds 3% by mass, if the glass transition temperature of the resin emulsion is higher than 0 ° C., the texture of the fabric tends to decrease.

As said cellulose resin, carboxymethylcellulose is mentioned, for example. As said carboxymethylcellulose, the well-known thing used in the field | area of an inkjet ink can be used, Among these, a thing with small molecular weight is preferable from the point that remains and a feeling is favorable.

As the content of the resin component, the solid content of the nonionic resin emulsion contained in 100 parts by mass of the inkjet printing treatment liquid is A part by mass, the solid content of the anionic resin emulsion is B mass part, and the cellulose When the solid content of the resin is C parts by mass, the respective materials are preferably blended so as to satisfy the following formula (5).
Formula (5) 0.1 <= (A / 3 + B / 3 + C) <= 1.7
In addition, as long as the conditions of Formula (5) are satisfied, A, B, and C may each be 0 mass part.
When the content is small, the effects of improving whiteness and fastness to washing are reduced. On the other hand, when the content exceeds the above range, there is a possibility that the texture of the fabric is lowered.

The processing liquid for inkjet printing contains at least one surfactant component selected from the group consisting of nonionic surfactants, anionic surfactants and amphoteric surfactants.

The nonionic surfactant is a surfactant that does not contain an ionic group as a polar group. For example, acetylene glycol surfactants such as ethylene oxide and / or propylene oxide adducts of acetylene glycol (specific examples) Include addition of ethylene oxide and / or propylene oxide such as 2,4,7,9-tetramethyl-5-decyne-4,7, -diol, 3,6-dimethyl-4-octyne-3,6-diol ), Acetylene alcohol surfactants such as ethylene oxide and / or propylene oxide adducts of acetylene alcohol (specifically, ethylene oxide such as 3,5-dimethyl-1-hexane-3-ol and / or Propylene oxide adducts, etc.), polyoxyethylene nonylphenyl ether, poly Ethers such as oxyethylene octyl phenyl ether, polyoxyethylene dodecyl phenyl ether, polyoxyethylene alkyl allyl ether, polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene alkyl ether, polyoxyalkylene alkyl ether; polyoxy Ethylene oleic acid, polyoxyethylene oleate, polyoxyethylene distearate, sorbitan laurate, sorbitan monostearate, sorbitan monooleate, sorbitan sesquioleate, polyoxyethylene monooleate, polyoxyethylene stearate, etc. Esters; polyether-modified siloxane surfactants such as dimethylpolysiloxane; other fluorine alkyls Ester, fluorine-containing surfactants such as perfluoroalkyl carboxylic acid salts, and the like.

The anionic surfactant is a surfactant having an anionic site in the molecule, and examples thereof include polyoxyethyl alkyl ether sulfate and polyoxyethylene alkyl phenyl ether sulfate.

The amphoteric surfactant is a surfactant having a cationic site and an anionic site in the molecule. For example, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine And carboxybetaine type such as aminocarboxylate.

As the surfactant component, among them, a nonionic surfactant is preferable from the viewpoint of the temporal stability of the inkjet printing treatment liquid. As such a nonionic surfactant, a nonionic surfactant having an HLB of 13 or more is preferable, and an ethylene oxide adduct of polyoxyethylene alkyl ether or acetylene glycol is particularly preferable.

Moreover, it is preferable that content in the processing liquid for inkjet printing of the said surfactant component is 0.1-1.5 mass%. When the content is less than 0.1% by mass, the treatment agent is not uniformly applied to the cloth, which may cause printing unevenness. On the other hand, if it exceeds 1.5 mass%, the fastness to washing may decrease.

There is no limitation in particular as said aqueous medium, The water etc. which were conventionally used for the processing liquid of the inkjet textile printing method, or the mixture of water and a water miscible solvent etc. can be used. Specific examples of the water-miscible solvent include lower alcohols such as ethanol and propanol, polyhydric alcohols such as glycerol, (poly) alkylene glycols such as (poly) ethylene glycol and (poly) propylene glycol, and alkyl ethers thereof. Etc., and these may be used alone or in combination of two or more.

In addition, the above-described processing liquid for ink-jet printing may contain a water-soluble polymer that has been conventionally used in the processing liquid for ink-jet printing methods as long as the performance does not deteriorate.
Examples of the water-soluble polymer include starch substances such as corn and wheat, arabic gum, locust bean gum, polysaccharides such as tragacanth gum, guar gum, tamarind seeds, protein substances such as gelatin and casein, tannin substances, and lignin substances. And known natural water-soluble polymers. Examples of the synthetic polymer include known polyvinyl alcohol compounds and polyethylene oxide compounds.

The above-mentioned ink-jet printing treatment liquid is obtained by adding the above-mentioned water-soluble polyvalent metal salt, resin component (nonionic resin emulsion, etc.), surfactant, aqueous medium, and water-soluble polymer as necessary. It can be obtained by stirring by a known means.

According to the above-mentioned ink jet textile printing method, the printed image has high sharpness and color density without impairing the texture of the fabric, durability against external stress such as scratching and rubbing, durability against washing and external stress and detergent. An excellent printed product can be obtained.
The ink jet printed matter obtained by the above ink jet textile printing method is also one aspect of the present invention.

Since the ink composition for inkjet textile printing of the present invention has the above-described configuration, the printed image has high sharpness and color density without impairing the texture of the fabric, and is resistant to external stresses such as scratching and rubbing. It is possible to obtain a printed material having excellent properties and external stress due to washing and durability against detergents.

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”.

<Characteristic value of titanium dioxide>
(Average primary particle size)
Measurements were made with an image analyzer based on transmission electron micrographs.
(Oil absorption)
It measured based on JIS K5010.

<Preparation of Inkjet Textile Treatment Solution for Examples>
(Inkjet textile processing solution 1)
83.7 parts of water, 10 parts of calcium nitrate tetrahydrate, anionic acrylic self-crosslinkable resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content 46 (Mass%) 6.0 parts and 0.3 part of acetylenol E100 (HLB 13.5, ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.) were added and stirred. Got.

(Inkjet textile processing solution 2)
83.7 parts of water, 10 parts of calcium nitrate tetrahydrate, anionic acrylic self-crosslinkable resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content 46 (Mass%) 6.0 parts, 0.3 parts of polyoxyethylene alkyl ether (HLB14.5, trade name: Sannonic SS-120, manufactured by Sanyo Chemical Industries, Ltd.) was added and stirred, and the ink jet printing treatment liquid 2 was obtained.

(Inkjet textile processing solution 3)
83.7 parts of water, 10 parts of calcium nitrate tetrahydrate, nonionic styrene-acrylic self-crosslinking resin emulsion having a glass transition temperature of −30 ° C. (trade name: Movinyl 966A, manufactured by Nichigo Movinyl Co., Ltd., solid Min. 45%) 6.0 parts, 0.3 part of acetylenol E100 (HLB13.5, ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), and stirred, and processed liquid 3 for inkjet printing Got.

(Inkjet textile processing solution 4)
89.2 parts of water, 10 parts of calcium nitrate tetrahydrate, 0.5 parts of carboxymethylcellulose (trade name: CMC Daicel, manufactured by Daicel Chemical Industries, Ltd.), acetylenol E100 (HLB 13.5, ethylene of acetylene glycol) 0.3 parts of an oxide adduct (manufactured by Kawaken Fine Chemical Co., Ltd.) was added and stirred to obtain a treatment liquid 4 for inkjet printing.

<Preparation of white ink for inkjet printing and color ink for inkjet printing>
[Preparation of polymer dispersant solution]
(Preparation of polymer dispersant solution 1)
25 parts of a solid acrylic acid / n-butyl acrylate / benzyl methacrylate / styrene copolymer having a glass transition temperature of 40 ° C., a weight average molecular weight of 10,000, and an acid value of 150 mg KOH / g are mixed with 3.2 parts of sodium hydroxide and 71.8 of water. A polymer dispersant solution 1 having a solid content of 25% was obtained by dissolving in a part of the mixed solution.

(Preparation of polymer dispersant solution 2)
25 parts of a solid acrylic acid / n-butyl acrylate / benzyl methacrylate / styrene copolymer having a glass transition temperature of 60 ° C., a weight average molecular weight of 10,000 and an acid value of 150 mg KOH / g was added to 3.2 parts of sodium hydroxide and 71.8 of water. A polymer dispersant solution 2 having a solid content of 25% was obtained by dissolving in a part of the mixed solution.

[Preparation of ink base for inkjet printing]
(Preparation of white ink base for inkjet printing)
19 parts of water was added to 36 parts of the polymer dispersant solution 1 and mixed to prepare a resin varnish for titanium oxide dispersion. After adding 45 parts of 21 ml / 100 g (Ishihara Sangyo Co., Ltd.) with stirring and mixing, the mixture was kneaded with a wet circulation mill to obtain a white ink base for inkjet printing.

(Preparation of aqueous blue ink base for inkjet printing)
64 parts by mass of water is added to 16 parts by mass of the polymer dispersant solution 2 and mixed to prepare a resin varnish for dispersing a blue pigment. Further, a blue pigment (PB15: 3, LIONOL BLUE FG-7330, Toyo Ink Co., Ltd.) (Made) After adding 20 parts by mass and stirring and mixing, the mixture was kneaded with a wet circulation mill to obtain an aqueous blue ink base for inkjet printing.

(Preparation of water-based yellow ink base for inkjet printing)
64 parts by mass of water is added to and mixed with 16 parts by mass of the polymer dispersant solution 2 to prepare a resin varnish for dispersing a blue pigment, and further 20 parts by mass of a yellow pigment (PY74, Brilliant Yellow 5GX, manufactured by Client) is added. After stirring and mixing, the mixture was kneaded with a wet circulation mill to obtain an aqueous yellow ink base for inkjet printing.

(Preparation of aqueous red ink base for inkjet printing)
64 parts by mass of water is added to 16 parts by mass of the polymer dispersant solution 2 to prepare a blue pigment-dispersing resin varnish, and 20 parts by mass of a red pigment (PR122, CROMOPHTAL PINK PT, manufactured by Ciba) is added. After stirring and mixing, kneading was performed with a wet circulation mill to obtain an aqueous red ink base for inkjet printing.

(Preparation of water-based black ink base for inkjet printing)
64 parts by mass of water is added to 16 parts by mass of the above polymer dispersant solution 2 and mixed to prepare a resin varnish for dispersing a blue pigment, and further 20 parts by mass of a black pigment (PBk7 MA100, manufactured by Mitsubishi Chemical Corporation) is added and stirred. After mixing, the mixture was kneaded with a wet circulation mill to obtain an aqueous black ink base for inkjet printing.

<Each color ink for example>
(White ink 1 for inkjet printing for Examples)
An anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Mobile 952B, manufactured by Nichigo Mobile, Ltd., solid content 46% by weight is added to 33.3 parts by weight of the white ink base for ink jet textile printing. %) 33.3 parts by mass, glycerin 20 parts by mass, acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), 1 part by mass, polyalkylsiloxane emulsion wax (trade name: Granol 482, solid content) 65%, 0.15 parts by mass of Kyoeisha Chemical Co., Ltd., and 12.25 parts by mass of water were mixed by stirring to obtain a white ink 1 for inkjet printing for Examples.

(White ink 2 for inkjet printing for Examples)
An anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Mobile 952B, manufactured by Nichigo Mobile, Ltd., solid content 46% by weight is added to 33.3 parts by weight of the white ink base for ink jet textile printing. %) 33.3 parts by mass, glycerin 20 parts by mass, acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), 1 part by mass, polyalkylsiloxane emulsion wax (trade name: Granol 482, solid content) 65%, manufactured by Kyoeisha Chemical Co., Ltd.) and 0.3 parts by mass of water and 12.1 parts by mass of water were mixed by stirring to obtain a white ink 2 for inkjet printing for Examples.

(White ink 3 for ink-jet printing for Examples)
An anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Mobile 952B, manufactured by Nichigo Mobile, Ltd., solid content 46% by weight is added to 33.3 parts by weight of the white ink base for ink jet textile printing. %) 33.3 parts by mass, glycerin 20 parts by mass, acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), 1 part by mass, polyalkylsiloxane emulsion wax (trade name: Granol 482, solid content) 65% of Kyoeisha Chemical Co., Ltd. (0.5 parts by mass) and water (11.9 parts by mass) were mixed by stirring to obtain a white ink 3 for inkjet printing for Examples.

(White ink 4 for inkjet printing for Examples)
An anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Mobile 952B, manufactured by Nichigo Mobile, Ltd., solid content 46% by weight is added to 33.3 parts by weight of the white ink base for ink jet textile printing. %) 33.3 parts by mass, glycerin 20 parts by mass, acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), 1 part by mass, polyalkylsiloxane emulsion wax (trade name: Granol 482, solid content) A white ink 4 for inkjet printing for Examples was obtained by stirring and mixing 1.0 part by mass of 65%, manufactured by Kyoeisha Chemical Co., Ltd. and 11.4 parts by mass of water.

(White ink 5 for inkjet printing for Examples)
Nonionic acrylic self-crosslinkable resin emulsion having a glass transition temperature of -30 ° C (trade name: Movinyl 966A, manufactured by Nichigo Movinyl Co., Ltd., solid content 45 mass) on 33.3 parts by mass of the above-mentioned white ink base for inkjet printing %) 33.3 parts by mass, glycerin 20 parts by mass, acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), 1 part by mass, polyalkylsiloxane emulsion wax (trade name: Granol 482, solid content) 65%, manufactured by Kyoeisha Chemical Co., Ltd.) and 0.3 parts by mass of water and 12.1 parts by mass of water were mixed by stirring to obtain a white ink 5 for inkjet printing for Examples.

(Blue ink 1 for ink-jet printing for Examples)
Anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content 46) 35 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyalkylsiloxane emulsion wax (trade name: Granol 482, Aqueous blue ink 1 for ink-jet printing for Examples was obtained by stirring 0.15 parts by mass of 65% solids (manufactured by Kyoeisha Chemical Co., Ltd.) and 26.35 parts by mass of water.

(Blue ink 2 for inkjet printing for Examples)
Anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content 46) 35 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyalkylsiloxane emulsion wax (trade name: Granol 482, Aqueous blue ink 2 for inkjet printing for Examples was obtained by stirring 0.3% by weight of solid content 65%, manufactured by Kyoeisha Chemical Co., Ltd., and 26.2 parts by weight of water.

(Blue ink 3 for inkjet textile printing for Examples)
Anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content 46) 35 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyalkylsiloxane emulsion wax (trade name: Granol 482, Aqueous blue ink 3 for inkjet printing for Examples was obtained by stirring 0.5% by weight of solid content 65%, manufactured by Kyoeisha Chemical Co., Ltd.) and 26.0 parts by weight of water.

(Blue ink 4 for inkjet printing for Examples)
A nonionic styrene-acrylic self-crosslinking resin emulsion having a glass transition temperature of −30 ° C. (trade name: Movinyl 966A, manufactured by Nichigo Movinyl Co., Ltd., solid) 35 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyalkylsiloxane emulsion wax (trade name: Granol) 482, solid content 65%, 1.0 part by mass of Kyoeisha Chemical Co., Ltd.) and 25.5 parts by mass of water were stirred to obtain an aqueous blue ink 4 for inkjet printing for Examples.

(Blue ink 5 for inkjet textile printing for Examples)
A nonionic acrylic self-crosslinking resin emulsion having a glass transition temperature of −30 ° C. (trade name: Movinyl 966A, manufactured by Nichigo Movinyl Co., Ltd., solid content 45) is added to 17.5 parts by mass of the aqueous blue ink base for inkjet printing. 35 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyalkylsiloxane emulsion wax (trade name: Granol 482, Aqueous blue ink 5 for inkjet printing for Examples was obtained by stirring 0.3% by weight of solid content 65%, manufactured by Kyoeisha Chemical Co., Ltd. and 26.2 parts by weight of water.

(Yellow Ink for Inkjet Textile 1 for Examples)
Anionic acrylic self-crosslinkable resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content: 46% by mass based on 15 parts by mass of the above-described aqueous yellow ink base for inkjet printing. ), 30 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyalkylsiloxane emulsion wax (trade name: Granol 482, solid content) 65%, 0.3 part by mass of Kyoeisha Chemical Co., Ltd.) and 23.7 parts by mass of water were stirred to obtain an aqueous yellow ink 1 for inkjet printing for Examples.

(Yellow Ink for Inkjet Textile 2 for Examples)
A nonionic styrene-acrylic self-crosslinking resin emulsion having a glass transition temperature of -30 ° C. (trade name: Movinyl 966A, manufactured by Nichigo Movinyl Co., Ltd., solid content 45) is added to 15 parts by mass of the aqueous yellow ink base for inkjet printing. 30 parts by mass), 30 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyalkylsiloxane emulsion wax (trade name: Granol 482, Aqueous yellow ink 2 for inkjet printing of the example was obtained by stirring 0.3% by weight of solid content 65%, manufactured by Kyoeisha Chemical Co., Ltd. and 23.7 parts by weight of water.

(Red ink 1 for inkjet printing for Examples)
Anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content: 46% by mass based on 20 parts by mass of the above-described aqueous red ink base for inkjet printing. ), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyalkylsiloxane emulsion wax (trade name: Granol 482, solid content) 65%, 0.3 part by mass of Kyoeisha Chemical Co., Ltd.) and 18.7 parts by mass of water were stirred to obtain an aqueous red ink 1 for inkjet printing for Examples.

(Red ink 2 for ink-jet printing for Examples)
Nonionic styrene-acrylic self-crosslinking resin emulsion having a glass transition temperature of −30 ° C. (trade name: Movinyl 966A, manufactured by Nichigo Movinyl Co., Ltd., solid content 45) 40 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyalkylsiloxane emulsion wax (trade name: Granol 482, Aqueous red ink 2 for inkjet printing for Examples was obtained by stirring 0.3% by weight of solid content 65%, manufactured by Kyoeisha Chemical Co., Ltd., and 18.7 parts by weight of water.

(Black ink 1 for inkjet printing for Examples)
An anionic acrylic self-crosslinkable resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content: 46% by mass based on 30 parts by mass of the aqueous black ink base for inkjet printing. ), 46.7 parts by mass, 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyalkylsiloxane emulsion wax (trade name: Granol 482, Aqueous black ink 1 for inkjet printing for Examples was obtained by stirring 0.3 part by mass of 65% solids (manufactured by Kyoeisha Chemical Co., Ltd.) and 22.7 parts by mass of water.

(Black ink 2 for inkjet printing for Examples)
Nonionic styrene-acrylic self-crosslinking resin emulsion having a glass transition temperature of −30 ° C. (trade name: Movinyl 966A, manufactured by Nichigo Movinyl Co., Ltd., solid content 45) on 30 parts by mass of the aqueous black ink base for inkjet printing. 46.7 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyalkylsiloxane emulsion wax (trade name: Granol) 482, solid content 65%, 0.3 parts by mass of Kyoeisha Chemical Co., Ltd.) and 22.7 parts by mass of water were stirred to obtain an aqueous black ink 2 for inkjet printing for Examples.

<Each color ink for comparative example>
(White ink 6 for inkjet printing for comparative example)
An anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Mobile 952B, manufactured by Nichigo Mobile, Ltd., solid content 46% by weight is added to 33.3 parts by weight of the white ink base for ink jet textile printing. %) 33.3 parts by mass, glycerin 20 parts by mass, acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.) 1 part by mass, and 12.4 parts by mass of water are mixed for stirring for a comparative example. A white ink 6 for inkjet textile printing was obtained.

(White ink 7 for inkjet printing for comparative example)
A nonionic styrene-acrylic self-crosslinking resin emulsion having a glass transition temperature of −30 ° C. (trade name: Movinyl 966A, manufactured by Nichigo Movinyl Co., Ltd., solid content) 45%) 33.3 parts by mass, 20 parts by mass of glycerin, acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), 1 part by mass, and 12.4 parts by mass of water were mixed and a comparative example. A white ink 7 for inkjet textile printing was obtained.

(White ink 8 for inkjet printing for comparative example)
An anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Mobile 952B, manufactured by Nichigo Mobile, Ltd., solid content 46% by weight is added to 33.3 parts by weight of the white ink base for ink jet textile printing. %) 33.3 parts by mass, glycerin 20 parts by mass, acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), 1 part by mass, polyethylene emulsion wax (trade name: Hitech E-2213, Toho Chemical) A white ink 8 for ink-jet printing for Comparative Example was obtained by stirring and mixing 5 parts by mass of an industrial company, solid content 30%, particle size 60 nm) and 7.4 parts by mass of water.

(White ink 9 for inkjet printing for comparative example)
An anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Mobile 952B, manufactured by Nichigo Mobile, Ltd., solid content 46% by weight is added to 33.3 parts by weight of the white ink base for ink jet textile printing. %) 33.3 parts by mass, glycerin 20 parts by mass, acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), 1 part by mass, polyethylene emulsion wax (trade name: Hitech E-6314, Toho Chemical) White ink 9 for inkjet printing for Comparative Example was obtained by stirring and mixing 5 parts by mass of 35% solid content, particle size 100 nm) manufactured by Kogyo Co., Ltd. and 7.4 parts by mass of water.

(White ink 10 for inkjet printing for comparative example)
An anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Mobile 952B, manufactured by Nichigo Mobile, Ltd., solid content 46% by weight is added to 33.3 parts by weight of the white ink base for ink jet textile printing. %) 33.3 parts by mass, glycerin 20 parts by mass, acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), 1 part by mass, polyethylene emulsion wax (trade name: Hitech E-6314, Toho Chemical) A white ink 10 for ink-jet printing for a comparative example was obtained by stirring and mixing 12 parts by mass of an industrial company, solid content 35%, particle size 100 nm) and 0.4 parts by mass of water.

(White ink 11 for inkjet printing for comparative example)
An anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of −38 ° C. (trade name: Mobile 952B,
Nichigo Movinyl Co., Ltd., solid content 46% by mass) 33.3 parts by mass, glycerin 20 parts by mass, acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polypropylene emulsion Inkjet printing for comparative example by stirring and mixing 5 parts by mass of wax (trade name: Hitech P-9018, manufactured by Toho Chemical Industry Co., Ltd., solid content 35%, particle size 58 nm) and 7.4 parts by mass of water. A white ink 11 was obtained.

(White ink 12 for inkjet printing for comparative example)
An anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Mobile 952B, manufactured by Nichigo Mobile, Ltd., solid content 46% by weight is added to 33.3 parts by weight of the white ink base for ink jet textile printing. %) 33.3 parts by mass, glycerin 20 parts by mass, acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), 1 part by mass, polypropylene emulsion wax (trade name: Hitech P-5060P, Toho Chemical) A white ink 12 for ink-jet printing for Comparative Example was obtained by stirring and mixing 5 parts by mass of an industrial corporation, solid content 40%, particle size 25 nm) and 7.4 parts by mass of water.

(Blue ink 6 for inkjet printing for comparison)
Anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content 46) 35 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), and 26.5 parts by mass of water for comparison An aqueous blue ink 6 for ink jet textile printing for example was obtained.

(Blue ink 7 for inkjet printing for comparative example)
A nonionic styrene-acrylic self-crosslinking resin emulsion having a glass transition temperature of −30 ° C. (trade name: Movinyl 966A, manufactured by Nichigo Movinyl Co., Ltd., solid) 35 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), and 26.5 parts by mass of water were stirred. As a result, an aqueous blue ink 7 for inkjet printing for a comparative example was obtained.

(Blue ink 8 for inkjet printing for comparative example)
Anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content 46) 35 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyethylene emulsion wax (trade name: Hitech E-2213, Aqueous blue ink 8 for inkjet printing for Comparative Example was obtained by stirring 5 parts by mass of Toho Chemical Industries, Ltd., solid content 30%, particle size 60 nm) and 21.5 parts by mass of water.

(Blue ink 9 for inkjet printing for comparative example)
Anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content 46) 35 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyethylene emulsion wax (trade name: Hitech E-6314, Toho Chemical Industries, Ltd., solid content 35%, particle size 100
nm) and 21.5 parts by mass of water were agitated to obtain an aqueous blue ink 9 for inkjet printing for Comparative Example.

(Blue ink 10 for inkjet printing for comparative example)
Anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content 46) 35 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polyethylene emulsion wax (trade name: Hitech E-6314, Aqueous blue ink 10 for inkjet printing for Comparative Example was obtained by stirring 12 parts by mass of Toho Chemical Industries, Ltd., solid content 35%, particle size 100 nm) and 14.5 parts by mass of water.

(Blue ink 11 for inkjet printing for comparative example)
Anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content 46) 35 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polypropylene emulsion wax (trade name: Hitech P-9018, Aqueous blue ink 11 for inkjet printing for Comparative Example was obtained by stirring 5 parts by mass of Toho Chemical Industries, Ltd., solid content 35%, particle size 58 nm) and 21.5 parts by mass of water.

(Blue ink 12 for inkjet printing for comparative example)
Anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content 46) 35 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), polypropylene emulsion wax (trade name: Hitech P-5060P, Aqueous blue ink 12 for inkjet printing for Comparative Example was obtained by stirring 5 parts by mass of Toho Chemical Industries, Ltd., solid content 40%, particle size 25 nm) and 21.5 parts by mass of water.

(Yellow ink 3 for inkjet printing for comparative example)
Anionic acrylic self-crosslinkable resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content: 46% by mass based on 15 parts by mass of the above-described aqueous yellow ink base for inkjet printing. ), 35 parts by mass of glycerin, 30 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemicals Co., Ltd.), and 24 parts by mass of water are stirred. An aqueous yellow ink 3 for textile printing was obtained.

(Yellow ink 4 for inkjet printing for comparative example)
A nonionic styrene-acrylic self-crosslinking resin emulsion having a glass transition temperature of -30 ° C. (trade name: Movinyl 966A, manufactured by Nichigo Movinyl Co., Ltd., solid content 45) is added to 15 parts by mass of the aqueous yellow ink base for inkjet printing. 30 parts by mass), 30 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), and 24 parts by mass of water are used for comparison. Water-based yellow ink 4 for inkjet printing was obtained.

(Red ink 3 for inkjet printing for comparative example)
Anionic acrylic self-crosslinking resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content: 46% by mass based on 20 parts by mass of the above-described aqueous red ink base for inkjet printing. ), 40 parts by mass of glycerin, 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), and 19 parts by mass of water are stirred. An aqueous red ink 3 for textile printing was obtained.

(Red ink 4 for inkjet printing for comparative example)
Nonionic styrene-acrylic self-crosslinking resin emulsion having a glass transition temperature of −30 ° C. (trade name: Movinyl 966A, manufactured by Nichigo Movinyl Co., Ltd., solid content 45) 40 parts by mass), 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), and 19 parts by mass of water are used for comparison. A water-based red ink 4 for inkjet printing was obtained.

(Black ink 3 for inkjet printing for comparative example)
An anionic acrylic self-crosslinkable resin emulsion having a glass transition temperature of -38 ° C. (trade name: Movinyl 952B, manufactured by Nichigo Movinyl Co., Ltd., solid content: 46% by mass based on 30 parts by mass of the aqueous black ink base for inkjet printing. ), 46.7 parts by mass, 20 parts by mass of glycerin, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), and 23 parts by mass of water are used for comparison. Water-based black ink 3 for inkjet textile printing was obtained.

(Black ink 4 for inkjet printing for comparative example)
Nonionic styrene-acrylic self-crosslinking resin emulsion having a glass transition temperature of −30 ° C. (trade name: Movinyl 966A, manufactured by Nichigo Movinyl Co., Ltd., solid content 45) on 30 parts by mass of the aqueous black ink base for inkjet printing. 46.7 parts by mass), 20 parts by mass of glycerol, 1 part by mass of acetylenol E100 (ethylene oxide adduct of acetylene glycol, manufactured by Kawaken Fine Chemical Co., Ltd.), and 23 parts by mass of water for comparison The water-based black ink 4 for inkjet printing for an example was obtained.

<Print without overlapping>
<Printing water-based white ink for inkjet printing>
A black white cloth of 100% cotton is impregnated with 10 g of the above treatment liquids 1 to 4 per A4 size, dried by heating, and using an evaluation printer equipped with a SPECTRA head, water-based white for inkjet printing for examples. Ink 1 to 5 and aqueous white ink 6 to 12 for ink jet textile printing for comparison were printed in such a manner that the solid printing overlapped four times, and then the portion on which printing was performed using a heat press machine had a temperature of 180 ° C. Was heated for 30 seconds to fix the water-based white ink for ink-jet printing onto the fabric, and printed products of Examples 1 to 8 and Comparative Examples 1 to 7 were obtained.

<Printing water-based blue ink for inkjet printing>
A water-based blue ink 1 for ink-jet printing for an example using an evaluation printer equipped with a SPECTRA head after impregnating 10 g of the above-mentioned treatment liquid 1 into a white fabric of 100% cotton and heating and drying. -5, aqueous blue ink 6-12 for inkjet printing for comparative example, solid-printed, and then the portion on which printing was performed using a heat press machine was heated for 30 seconds at a temperature of 180 ° C. The blue ink was fixed on the fabric, and printed products of Examples 9 to 13 and Comparative Examples 8 to 14 were obtained.

<Printing of water-based yellow ink for inkjet printing>
A white fabric of 100% cotton is impregnated with 10 g of the above treatment liquid 1 per A4 size, dried by heating, and using an evaluation printer equipped with a SPECTRA head, water-based yellow ink 1 for ink-jet printing for Examples. Alternatively, the aqueous yellow ink 3 or 4 for ink-jet printing for comparative examples is solid-printed, and then the portion on which printing is performed using a heat press machine is heated for 30 seconds at a temperature of 180 ° C. The yellow ink was fixed on the fabric, and printed materials of Examples 14 and 15 and Comparative Examples 15 and 16 were obtained.

<Printing of water-based red ink for inkjet printing>
A 10% cotton white fabric impregnated with 10 g of the above treatment liquid 1 per A4 size, followed by drying by heating, and using an evaluation printer equipped with a SPECTRA head, water-based red ink 1 for ink-jet printing for Examples Alternatively, the aqueous red ink 3 or 4 for ink-jet printing for comparative examples is solid-printed, and then the portion on which printing is performed using a heat press machine is heated at a temperature of 180 ° C. for 30 seconds to obtain water-based ink-jet printing. The red ink was fixed on the fabric to obtain printed materials of Examples 16 and 17 and Comparative Examples 17 and 18.

<Printing water-based black ink for inkjet printing>
A water-based black ink 1 for ink-jet printing for an example was used by impregnating 10 g of the above-mentioned treatment liquid 1 into a white fabric of 100% cotton, followed by drying by heating and using a printer for evaluation equipped with a head made by SPECTRA. Alternatively, the aqueous black ink 3 or 4 for inkjet printing for comparative example is solid-printed, and then the printed portion is heated for 30 seconds at a temperature of 180 ° C. The black ink was fixed on the fabric, and printed products of Examples 18 and 19 and Comparative Examples 19 and 20 were obtained.

<Overlay printing>
The above treatment liquid 1 was impregnated into 100% cotton black fabric with 10 g per A4 size, dried by heating, and using an evaluation printer equipped with a head made by SPECTRA, water-based white inks 1 to 5 for inkjet printing were used. The solid printing is performed in such a manner that the solid printing is overlapped four times, and then the solid ink is printed on the solid printing area with the color ink for ink-jet printing so as to have the combination shown in Table 2, and then at a temperature of 180 ° C. using a heat press machine. Were printed for 30 seconds to obtain printed products of Examples 20 to 30 in which the white ink for inkjet printing and the color ink for inkjet printing were fixed on the fabric.

(Image density)
<White printed matter>
The brightness of each printed matter of Examples 1 to 8 and Comparative Examples 1 to 7 was measured using a color difference meter (manufactured by Konica Minolta, product number: DR-321). The results are shown in Tables 1-3.

<Printed matter other than white>
The image density (OD value) of the solid part of each printed matter of Examples 9 to 19 and Comparative Examples 8 to 20 was evaluated using a Macbeth densitometer (manufactured by Macbeth, product number: TD-931). The results are shown in Tables 1-3.

(Film resistance)
Each printed matter of Examples 1 to 30 and Comparative Examples 1 to 20 was stretched 5 times (each time stretched to the limit), and cracking and peeling of the coating film were visually evaluated. The results are shown in Tables 1-4. Evaluation criteria A: No cracking or peeling of the coating film is observed. ○: No peeling of the coating film is observed, but a slight crack is observed. Δ: No peeling of the coating film is observed, but cracking occurs. Cracking and peeling of the coating are observed

(Washing fastness)
<White printed matter>
Each white printed matter of Examples 1 to 8 and Comparative Examples 1 to 7 was subjected to normal washing (washing conditions: washing in normal mode → dehydration → drying) 5 times in a household washing machine, and washing of each printed matter The brightness before and after washing was measured using a color difference meter (manufactured by Konica Minolta, product number: DR-321), and the change rate from the initial value of the brightness (L *) before washing was measured and evaluated. . The results are shown in Tables 1-3.
Evaluation Criteria A: Image density maintained 90% or more of initial value after washing ○: Image density 80% or more and less than 90% of initial value after washing Δ: Image density 70% of initial value after washing % Or more and less than 80% x: The image density after washing is less than 70% of the initial value

<Printed matter other than white>
Examples 9 to 30 and Comparative Examples 8 to 20 Printed products other than white, and printed products obtained by overlaying white with a color other than white are usually washed in a home washing machine (washing conditions: in normal mode) Was washed 5 times, and the image density (OD value) before and after washing of each printed product was measured using a Macbeth densitometer (manufactured by Macbeth, product number: TD-931). The rate of change from the initial value before washing was measured and evaluated. The results are shown in Tables 1-4.
Evaluation Criteria A: Image density maintained 90% or more of initial value after washing ○: Image density 80% or more and less than 90% of initial value after washing Δ: Image density 70% of initial value after washing % Or more and less than 80% x: The image density after washing is less than 70% of the initial value

(Texture)
Each printed matter of Examples 1-30 and Comparative Examples 1-20 was touched and evaluated by hand. The results are shown in Tables 1-4.
Evaluation Criteria A: The printed material is easily bent and is close to the softness of the 100% cotton black fabric itself ○: The printed material is easily bent, but feels slightly stiffer than the fabric itself Δ: The printed material is stiff Feeling ×: Stiff enough that the printed material does not bend freely

(Remaining trace of processing solution)
The traces of the treatment liquid of each printed matter of Examples 1 to 30 and Comparative Examples 1 to 20 were evaluated according to the following criteria. The results are shown in Tables 1-4.
Evaluation Criteria A: No trace from the treatment liquid is observed on the non-image part of the treated liquid coated surface of the printed product. ○: A trace of the process liquid derived from the non-image portion of the treated liquid coated surface of the printed product is observed. △: Trace that is derived from the treatment liquid on the non-image portion of the treated liquid coating surface of the printed material ×: Trace derived from the treatment liquid on the non-image portion of the treated liquid coated surface of the printed material The rest is very conspicuous

(Scratch aptitude)
The peeling condition of the coating film when each printed matter of Examples 1-30 and Comparative Examples 1-20 was scratched with a nail was evaluated according to the following criteria. The results are shown in Tables 1-4.
Evaluation Criteria A: No peeling of the coating film ○: Peeling of the coating film is slightly observed but hardly noticeable Δ: Peeling of the coating film is observed ×: Peeling of the coating film is very conspicuous

(Adequacy for overlay)
About each printed matter of Examples 20-30, bleeding, repellency, and OD value were evaluated on the following reference | standard. The results are shown in Table 4.
Evaluation criteria ◎: Smudge, repellency, no decrease in OD value ○: Slight bleed, repellency, slight decrease in OD value but little concern △: Smudge, repellency, or decrease in OD value What can be seen ×: Any of bleeding, repellency, or decrease in OD value is noticeable

The ink composition for ink jet textile printing of the present invention can be suitably applied in an ink jet textile printing method.

Claims (6)

An ink composition for inkjet printing, comprising a color pigment, a polymer dispersant, a binder component, an aqueous medium, and a polyalkylsiloxane emulsion wax. The ink composition for ink-jet printing according to claim 1, wherein the content of the polyalkylsiloxane emulsion wax is 0.05 to 1% by mass in solid content. The ink composition for inkjet printing according to claim 1 or 2, wherein the binder component is a self-crosslinking anionic resin emulsion and / or a nonionic resin emulsion. The ink composition for ink jet textile printing according to claim 1, 2 or 3, wherein the polymer dispersant is a polymer dispersant obtained by neutralizing an anionic water-soluble resin with a basic compound. 1) water-soluble polyvalent metal salt,
2) at least one resin component selected from the group consisting of a nonionic resin emulsion, an anionic resin emulsion, and a cellulose resin;
3) At least one surfactant component selected from the group consisting of nonionic surfactants, anionic surfactants and amphoteric surfactants, and
4) The process of apply | coating the process liquid for inkjet textiles containing an aqueous medium to the printing area | region of the inkjet ink of a fabric,
Heating the fabric coated with the inkjet textile processing liquid;
The step of printing using the ink composition for inkjet textile printing according to claim 1, 2, 3 or 4 on the printing area where the processing liquid for inkjet textile printing is applied, and
An ink-jet printing method comprising a step of heating a printed fabric. An ink-jet printed product obtained by the ink-jet printing method according to claim 5.