JPH08226083A - Dyed fabric and ink jet dyeing - Google Patents

Abstract

PURPOSE: To conduct an ink jet dyeing of a color pattern with clear, fluorescent and medium colors in good reproducibility on a fabric provided with a specific treatment. CONSTITUTION: First, an ink having at least eight colors selected from yellow, fuchsine, cyan, black and those colors with various their deepness as the fundamental colors, fluorescent yellow, fluorescent pink and clear violet, is prepared. Separately, a base fabric is prepared by imparting a polyester satin fabric with 0.2-20wt.% of at least one kind of substance selected from water-soluble polymers such as starches, water-soluble metal salts such as sodium chloride and polycations such as a quaternary ammonium salt polymer. Next, using the above ink, this base fabric is subjected to ink jet dyeing having such a dot matrix which is allowed to have colors up to three and have three colors per dot in at least part thereof, thus obtaining the objective high-grade dyed fabric.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dyed fabric and an inkjet dyeing method.

More specifically, the present invention relates to a dyed fabric printed with high quality, which is excellent in expression of vivid colors, fluorescent colors and intermediate colors, has good color reproducibility, and an inkjet dyeing method.

[0003]

2. Description of the Related Art Ink jet recording methods are being put to practical use in the field of printers for paper, but in recent years it has been studied to apply them to dyeing of cloth.

In the conventional general ink jet recording method, a binary system of whether or not ink is printed on a dot, which is the minimum unit of a printing place, is adopted, and three primary colors of yellow, magenta and cyan are used for color expression. Use this 3
The primary colors are mixed and recorded at the same position to express four colors of red (yellow + magenta), green (yellow + cyan), blue (magenta + cyan), and black (cyan + magenta + yellow). Therefore, the color expressed by the three primary colors of yellow, magenta, and cyan is yellow,
The seven colors are magenta, cyan, red, green, blue, and black. Further, when representing black with cyan, magenta, and yellow, the amount of ink applied is larger than that of other colors, and the ink bleeding on the recording material is large, so that there are three colors of yellow, cyan, and magenta. It is common in inkjet to print with four primary colors of yellow, magenta, cyan, and black in which black ink is added to the primary colors. 3 colors can be expressed by this
The seven colors are the same as in the case of the primary color ink, but the printing quality is good because it is not necessary to mix the three colors of yellow, magenta and cyan. Further, when expressing an intermediate color, a pseudo gradation expression such as a dither method or an area gradation method has been used.

When the ink jet recording method is used for dyeing a cloth, there are various problems different from printing on paper. In particular, color is an extremely important factor that determines the commercial value in the case of dyeing cloth, so in many applications and color patterns, the expression with the three primary colors (yellow, magenta, cyan) and black used in the printing field is used. It is necessary to print vivid colors that cannot be printed. For this reason, for example, in addition to the three primary colors, it is proposed in JP-A-6-57654 to add one or more of orange, violet, and green.

As another problem, in many ink-jet dyeing methods, when expressing a light color, the dark ink is sparsely hit in the dot matrix. There's a problem.

Further, in such a dot matrix, gradation expression is often insufficient and subtle intermediate colors cannot be expressed in many cases.

These problems can be avoided by printing using a so-called special color ink prepared in advance in a specific color, which is usually adopted in the current screen printing. 243890
No. 6,086,045.

However, there is a problem that it is necessary to switch or replace the ink for each color pattern, which not only makes the work extremely complicated, but also requires an extra device for the special color ink.

Further, as disclosed in Japanese Patent Application Laid-Open No. 53-102034, a method has been proposed in which a plurality of inks having different densities are used for one color ink and an intermediate color is recorded in high quality.

[0011]

SUMMARY OF THE INVENTION The object of the present invention is to broaden the range of color expression, to achieve high quality and good color reproducibility.
An object is to provide a dyed fabric that is efficiently printed.

Another object of the present invention is to provide an ink jet dyeing method which can minimize the amount of ink to be prepared and ink exchange, and can perform practically sufficient color expression and color reproduction.

[0013]

The dyed fabric of the present invention has the following constitution in order to solve the above problems.

That is, a dot matrix is formed which allows up to 3 colors per dot with an ink arbitrarily selected from the group consisting of 8 or more color inks and at least partially comprises dots having 3 colors per dot. It is a dyed fabric characterized by having.

The ink jet dyeing method of the present invention has the following constitution.

That is, a dot matrix is formed which allows up to 3 colors per dot with an ink arbitrarily selected from the group consisting of 8 or more color inks and at least a part of which has 3 colors per dot. It is an inkjet dyeing method characterized by performing inkjet printing on a cloth using the same.

The dyed fabric and the inkjet dyeing method of the present invention will be described in detail below.

The dyed fabric of the present invention has eight or more colors of ink for expanding the color expression.

Although the number of colors that can be expressed increases as the number of colors of ink increases, the number of colors that can be expressed is in a state of head over the ink colors used. Further, as the number of ink colors increases, the device becomes complicated and expensive.

The inventors of the present invention, after intensive research, found that about 10 ink colors can balance these.

Further, in the case of textile printing by ink jet, it has been found that a high quality color expression can be achieved with at least 8 colors of ink.

When the number of colors is less than eight, it is difficult to express a clear color or a subtle intermediate color, and when printing a design of various color patterns, it is necessary to switch or replace ink, which makes the work extremely complicated. There's a problem.

The eight color inks to be used can be arbitrarily selected and used as described later. Preferably, the number of colors of ink is 8 to 12, and if it is 12 colors, very good inkjet textile printing becomes possible.

Further, the dyed fabric of the present invention allows up to 3 colors per dot with an ink selected arbitrarily from among these, and at least part of the dots is composed of dots having 3 colors per dot. It has a matrix.

Conventionally, when four primary color inks of yellow, magenta, cyan and black are used to represent colors by a dot matrix, it has been practiced to overlay two colors at the same position as described above, but three colors are used. To repeat the above,
Not used because the amount of ink applied increases and the bleeding increases, and the color mixture becomes turbid and approaches an achromatic color when overprinting with three or more colors due to subtractive color mixing. That is, for example, yellow, magenta, and black become black, and the color expression range does not increase even if three or more colors are overlapped.

The inventors of the present invention use 8 or more specific ink colors, allow up to 3 colors per dot, and at least partially form dots having 3 colors per dot. It has been found that a dyed fabric capable of expanding color expression can be obtained by having a matrix.

When using eight or more specific ink colors,
For example, it is possible to express dull green by superimposing three color inks of light yellow, light cyan and light black at the same position, or to superimpose three inks of vivid violet, dark yellow and light magenta at the same position. It is also possible to express a brown color, and it is possible to make the color expression range extremely wide compared to the case where the color expression range is limited to two colors.

On the other hand, ink bleeding due to overlapping of three colors can be reduced in the case of cloth as compared with the case of general paper, and preferably water-soluble polymer, water-soluble metal salt,
Pre-treatment of the fabric with compounds such as polycations solves the bleeding problem.

The term "having three colors per dot" as used in the present invention means that three colors are applied substantially in an area ("dot" described later) as a minimum unit to which ink is applied. .

In the case of a dyed fabric having a dot matrix composed of dots that allow 4 or more colors per dot, the vividness of the color is reduced and the amount of ink applied per unit area is increased, so that the dots are bleeding. However, there is a problem that the sharpness of the pattern is significantly reduced.

The ink used in the dyed fabric of the present invention includes, as a basic color, yellow, magenta, cyan, and black, and yellow, which has a different color density from yellow as a basic color, from the viewpoint of expressing a vivid color or an intermediate color. Magenta as the color and magenta with different color density, cyan as the basic color and cyan with different color density, black as the basic color and black with different color density (gray), and fluorescent yellow, fluorescent pink, vivid blue, vivid violet An ink of 8 or more colors selected from the group consisting of is preferable. Conventionally, as the colors to be added to the three primary colors, for example,
As disclosed in JP-A-6-57654, bright, vivid colors such as orange, violet and green are listed.

In the present invention, in order to expand the range of expression of dark colors that cannot be produced with the three primary colors, it is more practical and efficient when increasing the number of ink colors, so that it is a vivid blue, vivid violet dark color vivid system. Adding color is preferably done. Here, the vivid blue means a vivid blue color having a stronger reddish color than cyan, and the vivid violet means a vivid violet color having a stronger bluish color than magenta.

Further, in the dyed cloth of the present invention, in order to obtain a clear mixed color, it is preferable to add fluorescent yellow, fluorescent pink or the like. Usually, these fluorescent colors are often used alone, for example, as a point of a pattern of sports clothing, but in the present invention, a fluorescent orange and a fluorescent scarlet can be expressed as a dot matrix in addition to the usage alone, and, By forming a matrix with other non-fluorescent colors, a clearer mixed color can be expressed.

In dyeing a cloth, since the sharpness when the ink is dyed on the cloth is required, the color purity according to the International Commission on Illumination (hereinafter referred to as "CIE") chromaticity diagram is 75% in yellow. As described above, inks having magenta of 55% or more, cyan of 60% or more, clear blue of 50% or more, and clear violet of 50% or more, and fluorescent yellow and fluorescent pink inks are preferably used.

For example, when eight color inks are used, examples of standard ink composition are dark yellow, light yellow, dark magenta, light magenta, dark cyan, light cyan, dark black, light black ( Gray), and other examples include dark yellow, dark magenta, medium magenta, light magenta, dark cyan, medium cyan, light cyan, and black.

In order to obtain a clear mixed color, it is preferable to use one or more colors of fluorescent yellow, fluorescent pink, vivid blue and vivid violet in place of any of the inks having the above-mentioned standard constitution.

For example, when four colors of the standard composition are replaced, examples of ink color composition are dark yellow, fluorescent yellow, dark magenta, fluorescent pink, dark clear blue, light clear blue, and clear violet. , Black, and in other configuration examples, dark yellow, light yellow,
Examples include, but are not limited to, dark magenta, light magenta, dark vivid blue, light vivid blue, vivid violet, and black, and any 1 to 4 colors of the standard configuration as required. Can be replaced and used.

In the case of an apparatus which can use 12 color inks, these vivid colors can be added to the standard 8 colors and the 8 color inks can be used without replacement.

The dot means a printing place unit, and an area as a minimum unit to which ink is applied.

The dot matrix referred to in the dyed fabric of the present invention means, for example, a pixel (pixel) represented as one color unit including m × n (m and n are 1 or more) dots. When at least one color of ink is placed at each position in the dot matrix, the ink is formed so as to completely cover the surface of the recording material. For example, FIG. 1 shows an example of a 3 × 3 square dot matrix. In addition, 1x1, 2x2,
For example, a dot matrix of 4 × 4, 8 × 8, 4 × 8, etc. can be given.

The arrangement of ink drops in this dot matrix will be conceptually described. For example, in FIG. 1, three color inks are arranged like dots 1a and one color ink is arranged like dots 3c. It is composed of dots in which inks of two colors are arranged, such as dots of 3b, or dots in which ink is not arranged, such as 3a. In addition, where two or three color inks are arranged in one dot, it is necessary to have a part where the inks are partially mixed.

The method of arranging the colors of the dot matrix is not particularly limited, but it is preferable to select an arrangement in which the color uniformity is high and the occurrence of moire is small when expressing the intermediate color. .

The shape of the dot matrix is not particularly limited, and one having a fixed shape such as a triangular shape or a rhombus shape, or an indefinite shape corresponding to the shape of the handle is appropriately selected. You can

In the dyed fabric of the present invention, the dot resolution is 4 to 20 dots / m in order to obtain a good quality design.
m is preferable, and it is preferable that the surface of the recording material is completely covered with the ink when at least one color of ink is arranged on all dots corresponding to the resolution.

As an ink jet dye, a desired hue can be obtained, and the dye has good solubility or dispersibility in a medium,
It is preferable to use one that has few foreign matters and impurities that cause nozzle clogging, has a high color density with respect to the solid content of the dye, and has various fastnesses of the dyed product.

In order to satisfy these characteristics, the dye used in the ink is appropriately selected from a known dye group according to the fiber material, and if necessary, treatments such as purification, filtration and fine dispersion are performed. Is preferred.

The disperse dyes for polyester are DY-5, 4 which are represented by Disperse Yellow (hereinafter abbreviated as "DY") of the color index in the case of yellow when the three primary colors are yellow, magenta and cyan.
2, 49, 54, 58, 63, 64, 71, 79, 8
3, 88, 90, 93, 99, 100, 103, 11
4, 119, 126, 160, 180, 198, 20
4, 211, 218, 224, 226, 227, 23
Examples include dyes such as 1, 234 and 237,
For magenta, color index disperse
DR-6 shown in red (hereinafter abbreviated as "DR")
0, 82, 86, 88, 91, 92, 111, 127,
132, 134, 146, 154, 159, 206, 2
07, 283, 229, 239, 240, 283, 28
Examples of dyes include 8, 302, 343,
In the case of cyan, DB-60 represented by the color index Disperse Blue (hereinafter abbreviated as “DB”),
Examples include dyes such as 87, 87: 1, 143, 176, 198, 364.

Fluorescent yellow DY-82, 124, 184: 1, 186, 1 as a clear dye added to the three primary colors.
99, 216, and DR-23 as fluorescent pink.
9, 240, 362, 364, bat red 41 shown by bat red of color index, and DB-56, 183, 185, 3 as clear blue.
54, 365, color index disperse violet (hereinafter,
DV-26, 27, 28 indicated by "DV")
35, 38, 46, 48, 57, 63, 77, 97. Black is not particularly limited, and a known disperse dye can be appropriately mixed and prepared.

Although the case of the disperse dye for polyester has been exemplified above, the dye is not limited to these dyes, and in the case of other materials and dyes, a dye having a hue suitable for the present invention from a known dye group. Can be selected.

The fabric constituting the dyed fabric of the present invention is not particularly limited, and natural fibers such as cotton, silk and wool, regenerated fibers such as rayon, semi-synthetic fibers such as acetate, nylon and polyester. Any of a woven fabric, a knitted fabric or a non-woven fabric using at least one selected from the group consisting of synthetic fibers such as acrylic is applicable.

Next, the ink jet dyeing method of the present invention will be described.

The ink jet means used in the ink jet dyeing method of the present invention is not particularly limited, and various known methods can be used.

Typical methods include an on-demand method and a continuous method.

Examples of the on-demand system include thermal types such as piezo type and bubble jet, and examples of the continuous system include charge amount deflection type.

Preferably, the ink droplet diameter is fixed, and an on-off control type system is used to determine whether or not one kind of ink is printed for each dot printing position. .

Prior to ink jet dyeing, these fabrics are preferably provided with a pretreatment agent for preventing bleeding, improving the surface color density, and improving the quality.

As the pretreatment, a method suitable for the fiber material and the ink may be appropriately selected from known methods and is not particularly limited. From the viewpoint of the effect of preventing bleeding, the pretreatment agent is It is preferable to select at least one selected from the group consisting of various natural or synthetic water-soluble polymers, water-soluble metal salts, and polycations.

As the natural water-soluble polymer, starches,
Cellulose derivatives such as carboxymethyl cellulose, methyl cellulose and hydroxyethyl cellulose, polysaccharides such as sodium alginate, guar gum, tamarind gum, locust bean gum and gum arabic. And so on.

As the water-soluble metal salt, NaCl, KC
1, alkali metal or alkaline earth metal halides such as CaCl ₂ and organic acid salts.

Examples of the polycation include polymers or oligomers of various quaternary ammonium salts.

In the method of the present invention, in order to improve the quality of the design, improve the color density, and prevent bleeding, the above-mentioned pretreatment agent is appropriately selected according to the ink, the material and the fabric structure,
Pad method so that the content of the cloth is 0.2 to 20% by weight,
It is preferably applied by a coating method, a spray method or the like.

As the ink used in the method of the present invention, an ink in which a dye is dissolved or dispersed in a solvent having water as a main medium can be used. The ink composition is not particularly limited, and a known ink composition suitable for an inkjet system can be used.

Typical components of the ink include water-soluble organic solvents in addition to dye and pigment and water as the main medium. Examples include polyhydric alcohols such as ethylene glycol, diethylene glycol, propylene glycol, butanediol and glycerin, glycol ethers such as ethylene glycol monoethyl ether, and alcohols such as ethyl alcohol and propyl alcohol.

If necessary, known dispersants, surfactants, pH adjusters, preservatives and the like can be added to the ink.

The ink jet dyeing method of the present invention uses inks of 8 or more colors and allows up to 3 colors per dot,
In addition, the cloth is inkjet dyed using a dot matrix composed of dots having at least a part of three colors per dot.

Examples of the standard composition of the ink used include dark yellow, light yellow, dark magenta, light magenta, dark cyan, light cyan, dark black, light black (gray), and others. Examples of dark yellow, dark magenta, medium magenta, light magenta, dark cyan, medium cyan, light cyan, and black.

The ink jet dyeing method of the present invention uses 8 or more color inks, allows up to 3 colors per dot, and uses at least a part of a dot matrix composed of dots having 3 colors per dot. Since it is printed on fabric, it is possible to express vivid colors that cannot be expressed using only the three primary colors of yellow, magenta, and cyan inks in the past, and it is possible to change from vivid colors to fluorescent colors with the minimum necessary ink replacement. It has the feature that high-quality color expression is possible in a wide range of colors, including low intermediate colors and light colors.

Further, although the present invention expresses a color with a dot matrix made of ink of a specific color, in order to accurately reproduce the color on the cloth, the cloth is used.
It is preferable to create a dot matrix color sample with the same type of ink in advance and select the color closest to the desired color from the color sample.

In this case, color reproduction can be performed by the following procedure.

First, for a desired design color pattern, a combination of inks that can express the closest color to the color used therein is determined, and each color used in the design is determined. On the other hand, it is possible with the combination of the ink 1
Select the closest color from the color matrix of the dot matrix consisting of combinations of up to 3 colors per dot.

If necessary, the printing apparatus is used to exchange a specific ink for printing. These operations can be performed with the naked eye from the actual sample, and the color data of the color sample created with the cloth is input in the computer in advance,
It is also possible to have these procedures performed by calculation.

[0072]

EXAMPLES The present invention will be described in more detail with reference to Examples and Comparative Examples.

The ink jet device, ink and cloth used in the present invention are shown below.

[Inkjet device] An inkjet printer of the following specifications by a piezo type on-demand system was used.

Number of colors: 8 colors Nozzle diameter: 50 microns Resolution: 8.0 dots / mm Printing method: Nozzle moving method [Ink] Dye is used as an anionic styrenated phenol ethylene oxide adduct sodium sulfate salt as a dispersant. 50% of the average particle size is 0.3-0.
A disperse dye ink consisting of a disperse dye of 5 microns, propylene glycol and water was used.

In the ink composition, when the disperse dye is X% by weight, propylene glycol is 30% by weight and water is (70-
X) It was prepared so as to have a relationship of% by weight.

[Cloth] A polyester woven fabric ("Look" (registered trademark) Satin manufactured by Toray Industries, Inc.) as a pretreatment agent having a concentration of 20 g / l as a high molecular weight cation compound (Neofix RX-100 manufactured by Nika Chemical Co., Ltd.) , Concentration is 5g / l
By using the guar gum that is, by the pad-dry method,
An anti-bleeding agent was added. The content of pretreatment agent in the fabric is 1.8%.

The evaluation method of the dyed fabric of the present invention is shown below.

[Color Representation] As shown in Table 2, the difference in color representation between the original design image of 1 to 20 and the printed matter classified by the color system showing the color tone of the entire pattern was evaluated by five testers. ○ (good overall color expression and no graininess), △ (poor color overall, graininess), × (very poor color overall, graininess) There is a feeling), and the color reproducibility was obtained by averaging the five people.

[Examples 1 to 3] Ink set A (Example 1) having 8 ink colors shown in Table 1 on the pretreated fabric, ink set B having 8 ink colors (Example 2), Ink set C (Example 3) having 8 ink colors uses a 4 × 4 dot matrix, and a dot matrix pattern that allows up to 3 colors per dot results in approximately 120,000 colors in one ink set. The color sample was printed, and after the color was developed by the HT steamer by a conventional method, reduction washing was performed to produce a color sample of a cloth print.

[0081]

[Table 1] Approximate colors were selected from the color samples of the ink sets A, B, and C prepared in the present invention, and printing was performed on a print design of 20 patterns. There are 7 designs that can be used with Ink Set A, and it was possible to express subtle neutral colors such as green, dark brown peripheral colors, dark red, and purple.

The ink set B was compatible with 12 designs, and was excellent in color expression of vivid blue, vivid violet, brown, navy blue, dark purple, dark green, red and dark brown.

In addition, there are 7 designs that can be used with Ink Set C. In addition to fluorescent yellow, fluorescent pink, fluorescent orange, fluorescent scarlet, bright brown (gold), bright green, etc., it is possible to express intermediate colors as well. It was

As described above, a print having a good color reproducibility with respect to a print design of 20 patterns can be obtained by performing the ink exchange work twice, that is, the ink exchange of three colors A to B and the ink exchange of two colors B to C. Was produced.

Table 2 shows the color expression results for each design pattern.

[0086]

[Table 2] In each example, the printed design had no bleeding and a sharp pattern was obtained.

[Comparative Example 1] A combination of the ink set A having 8 ink colors shown in Table 1 with the pretreated cloth was 4 × 4.
A color sample of a cloth print was produced in the same manner as in Example 1 by using the dot matrix of No. 1 and a dot matrix pattern that allowed up to 4 colors per dot.

Since up to 4 colors are allowed per dot, the number of combinations of dot matrix color arrangement patterns is significantly increased in calculation as compared with the case of allowing up to 3 colors per dot in the first embodiment. In the color sample printed on
In the case of mixing four colors per dot, the vividness of the color was lowered, and the color tended to be achromatic, and most of the black-colored similar colors were found.

For this reason, the range of colors that can be represented on the CIE chromaticity diagram is not much different from the case where up to 3 colors are allowed per dot.

When the color reproducibility was evaluated by the actual design, the design No. Except for 14, the dot matrix that allowed up to 3 colors per dot was able to perform sufficiently good color reproduction, and it was not necessary to use a dot matrix containing 4 colors per dot. Design N
o. For No. 14, it was possible to express a dark navy color by using a dot matrix containing 4 colors per dot, but the occurrence of uneven dyeing called Mitcha, the outline of the picture being blurred and the sharpness disappeared. The amount of ink applied was large, and problems occurred due to large bleeding, and the color itself was good, but when the entire pattern was viewed, it was not always improved.

[Comparative Examples 2 to 4] Color samples were prepared under the same conditions as in Examples 1 to 3 except that a dot matrix pattern which allowed up to 2 colors per dot was used and printed for 20 designs. Was done.

Since dots that allow three colors per dot are not included in the dot matrix,
It is difficult to express colors such as navy blue, brown, dark brown, and dark green, and the color expression range is narrow compared to Examples 1 to 3.

With respect to a print design of 20 patterns, two patterns can be supported by the ink set A (Comparative example 2), 6 patterns can be supported by the ink set B (Comparative example 3), and an ink set C (Comparative example 4). ) Can handle 2 patterns, 2
Even after performing the ink exchange work twice, satisfactory prints of only 9 patterns could be produced. In order to print all 20 patterns with satisfactory quality, it was necessary to prepare ink sets having different ink colors and densities and further perform ink replacement work.

Table 2 also shows the color expression results for each design.

[Comparative Example 5] A combination of Ink Set D having seven ink colors shown in Table 1 on a pretreated cloth was used, and a dot matrix of 4 x 4 was used to allow up to 3 dots per dot. A fabric print color swatch was made in the same manner as in Example 1 with a matrix pattern. Ink color is 8
Since it is less than the number of colors, it is difficult to express light colors such as orange and brown.

Table 2 also shows the color expression results for each design.

[0097]

According to the method of the present invention, in ink jet dyeing, a color pattern containing vivid colors, fluorescent colors and intermediate colors that cannot be expressed with standard three primary colors and black is printed with high color reproducibility. Since it is possible to minimize the ink replacement work, it is possible to provide an efficient and highly practical inkjet dyeing method.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an example of a dot matrix used in the inkjet dyeing method of the present invention.

[Explanation of symbols]

 1: Dot 2: Ink

Claims (5)

[Claims] 1. A dot matrix comprising at least 3 inks per dot with an ink arbitrarily selected from the group consisting of 8 or more color inks, and at least a part of which has 3 colors per dot. A dyed fabric characterized by having. 2. An ink color of yellow, magenta, cyan, and black as basic colors, yellow having a color density different from that of yellow as the basic color, magenta having a color density different from that of magenta as the basic color, and the basic color. Cyan having a different color density than that of cyan, black having a different color density from black as the basic color, and fluorescent yellow, fluorescent pink, vivid blue, and vivid violet. Item 4. The dyed fabric according to item 1. 3. A dot matrix, which allows up to 3 colors per dot with an ink arbitrarily selected from the group consisting of 8 or more color inks and at least partially comprises 3 colors per dot. An inkjet dyeing method, which comprises performing inkjet printing on a fabric using the same. 4. An ink color of yellow, magenta, cyan, and black as basic colors, yellow having a color density different from that of yellow as the basic color, magenta having a color density different from that of magenta as the basic color, and the basic color. Cyan having a different color density than that of cyan, black having a different color density from black as the basic color, and fluorescent yellow, fluorescent pink, vivid blue, and vivid violet. Item 4. The inkjet dyeing method according to Item 3. 5. At least one selected from the group consisting of water-soluble polymers, water-soluble metal salts and polycations is 0.2.
The ink-jet dyeing method according to claim 3 or 4, wherein a cloth provided with -20% by weight is used.