JPH073666A - Ink-jet printing method - Google Patents

Abstract

PURPOSE:To provide an ink-jet printing method capable of providing a dyed product having expanded hue range and exhibiting clear hue as a whole. CONSTITUTION:A cloth is printed by ink-jet printing using at least one kind of dye selected from dyes V to VIII having perception chromaticity indices a and b falling within the following ranges in addition to dyes I, II, III and IV having perception chromaticity indices a and b falling within the following ranges. I: Yellow 1, (a) -20 to 0, (b) 50 to 90; II: Magenta 1, (a) 50 to 70, (b) 0 to 20; III: Cyan 1, (a) -50 to -10, (b) -50 to -20; IV: Black, (a) -6 to 6, (b) 4-6 to 6; V: Yellow 2, (a) 0 to 20, (b) 50 to 90; VI: Cyan 2, (a) -10 to 20, (b) -50 to -20; VII: Yellow 3, (a) 20 to 70, (b) 40 to 90; and VIII: Magenta 2, (a) 50 to 70, (b) -20 to 0.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing method using an ink jet system.

[0002]

2. Description of the Related Art Conventionally, as a method for printing a pattern on a cloth, a screen printing method, a roller printing method, a rotary screen printing method, a transfer printing method, etc. have been used. It is necessary to prepare engraving rollers, transfer paper, etc., and since the production of these screen frames, engraving rollers, transfer paper is quite expensive, not only is it economically incompatible unless a large lot is produced, It has the drawback of not being able to quickly respond to the diversification of fashion.

In order to solve these drawbacks, a sample is read by a scanner and image processing is performed by a computer.
A technique for printing the result by an inkjet method has been developed and has been put to practical use in the field of paper in recent years. This ink jet method has attracted attention in the field of fibers because it can be manufactured without spending time and money, and attempts have been made to apply it to cloth.

However, in the ink jet system, various hues have been expressed using black ink in addition to the three primary colors of yellow ink, magenta ink and cyan ink. However, in the case of paper, since fine particles such as talc that increase the whiteness and make it look clear are blended, it is possible to express most hues by using these four colors. There are drawbacks such as a low fixation rate, a narrow hue range that can be expressed because fine particles such as talc cannot be blended, and a clear hue cannot be obtained.

[0005]

DISCLOSURE OF THE INVENTION The inventors of the present invention have conducted extensive studies as to the ink jet printing method, and as a result, have found a yellow ink, a magenta ink, a cyan ink, and a black ink having a specific hue range used for ordinary paper. In addition to the above, the present invention has been completed by finding that the problems of the existing method can be solved by using yellow ink, magenta ink, and cyan ink having different hue ranges.

An object of the present invention is to provide an ink jet printing method capable of obtaining a product having a wide hue range and a clear hue.

[0007]

In order to achieve the above object, the present invention has the following constitution. That is, the first invention is the hue range on the fabric [CIE1976 (L, a, b) space]
In addition to the dyes I, II, III and IV having the perceptual chromaticity indexes a and b defined in the following, the dyes V to VIII having the perceptual chromaticity indexes a and b within the following ranges are selected. The gist of an inkjet printing method is characterized in that at least one kind of dye is used to print a fabric by an inkjet method. I Yellow 1: (a) -20 to 0 (b)
50-90 II Magenta 1: (a) 50-70 (b)
0-20 III Cyan 1: (a) -50 to -10 (b)-
50 to -20 IV black: (a) -6 to 6 (b)
-6 to 6 V Yellow 2: (a) 0 to 20 (b)
50-90 VI Cyan 2: (a) -10-20 (b)-
50--20 VII Yellow 3: (a) 20-70 (b)
40-90 VIII Magenta 2: (b) 50-70 (b)-
20-0

The second aspect of the present invention is the dye I to which the perceptual chromaticity indices a and b defined in the hue range [CIE1976 (L, a, b) space] on the fabric are in the following ranges.
The gist is an inkjet printing method, which is characterized in that a fabric is printed by an inkjet method using IV. I Yellow 1: (a) -20 to 0 (b)
50-90 II Magenta 1: (a) 50-70 (b)
0-20 III Cyan 1: (a) -50 to -10 (b)-
50 to -20 IV black: (a) -6 to 6 (b)
-6 to 6 V Yellow 2: (a) 0 to 20 (b)
50-90 VI Cyan 2: (a) -10-20 (b)-
50 to -20

The present invention will be described in detail below.

When each dye ink is used to fix the dye on the cloth, the hue range must be within the above range. The a value and the b value which are the hues of each dye ink on the cloth will be described.

The a value of the hue on the yellow 1 fabric is -20.
A value of 0 to less than -20 is not a dye for practical use, and a value of more than 0 gives a reddish and dull yellow.
The b value is from 50 to 90. When the b value is less than 50, the sharpness is poor, and when the b value is more than 90, the dye is not practically usable. The value a of the hue on the fabric of Yellow 2 is 0 to 20, and those having a value of less than 0 are yellow without redness and those having a value of more than 20 are orange. The b value is from 50 to 90. When the b value is less than 50, the sharpness is poor, and when the b value is more than 90, the dye is not practically usable. The a value of the hue on the yellow 3 fabric is 20
˜70, less than 20 is golden yellow, and more than 70 is not a dye for practical use.
The b value is from 40 to 90. When the b value is less than 40, the sharpness is poor, and when the b value is more than 90, the dye is not suitable for practical use.

The a value of the hue on the fabric of magenta 1 is 50 to
A dye having a value of 70 and less than 50 is inferior in vividness, and a dye having a value of more than 70 is not a practical dye. b value is 0 to 20
If it is less than 0, it becomes bluish red, and if it exceeds 20, it becomes scarlet. The a value of the hue on the fabric of magenta 2 is 50 to 70, the value less than 50 is inferior in sharpness, and the value more than 70 is not a practically usable dye. The b value is from -20 to 0, those with a value of less than -20 are inferior in sharpness, and those with a value of more than 0 are yellowish red.

The a value of the hue on the cloth of cyan 1 is -50 to
A dye having a value of -10 and a value of less than -50 is not a dye for practical use, and a value of more than -10 gives a royal blue. b
The value is -50 to -20, and those below -50 are not dyes that can be used practically, and when it exceeds -20, it becomes dull blue. The a value of hue on the cloth of cyan 2 is -10 to 2
When it is 0 and less than -10, it does not become royal blue, and when it exceeds 20, it becomes reddish blue. b value is -50
It is -20 and less than -50 is not a dye that can be used practically. When it exceeds -20, it becomes dull blue.

The a value of the hue on the black cloth is -6 to
6 and b values are -6 to 6, and if the value is out of this range, black is not obtained.

The dye used in the present invention includes:
The hue range on the cloth is not particularly limited as long as it is within the above range, but examples of the one excellent in sharpness and light resistance when used in an inkjet system include the following.

Reactive Dye (1) Monochlorotriazine Yellow 1: C.I. I. Reactive Yellow
2,18,81,85,95 Yellow 2: C.I. I. Reactive Yellow
84, 102 C.I. I. Reactive Orange 12 Yellow 3: C.I. I. Reactive Orange
5, 13 Magenta 1: C.I. I. Reactive Red 2
4,29,45,226 Magenta 2: C.I. I. Reactive Red 21
8 Cyan 1: C.I. I. Reactive Blue 1
5,71,72 Cyan 2: C.I. I. Reactive Blue 4
9,195 Black: C.I. I. Reactive Black
1,8 (2) Vinylsulfone yellow 1: C.I. I. Reactive Yellow
15, 37, 57 Yellow 2: C.I. I. Reactive Yellow
17 Yellow 3: C.I. I. Reactive Orange
15, 16, 74 Magenta 1: C.I. I. Reactive Red 2
1, 22 Magenta 2: C.I. I. Reactive Red 3
5,174,180 Cyan 1: C.I. I. Reactive Blue 2
1,77 Cyan 2: C.I. I. Reactive Blue 1
9,28 Black: C.I. I. Reactive Black
5,14

Acid Dye Yellow 1: C.I. I. Acid Yellow 17,
49, 72, 110, 127 Yellow 2: C.I. I. Acid Yellow 38 C.I. I. Acid Orange 149 Yellow 3: C.I. I. Acid Orange 67,
56 Magenta 1: C.I. I. Acid Red 114,13
8, 35, 37, 57 Magenta 2: C.I. I. Acid Red 254,25
7,138,274 Cyan 1: C.I. I. Acid Blue 185
7, 9 Cyan 2: C.I. I. Acid Blue 83,9
0, 112, 62 Black: C.I. I. Acid Black 26,1
09,107,155

Direct Dye Yellow 1: C.I. I. Direct Yellow 1
42, 50, 106 Yellow 2: C.I. I. Direct Yellow 1
2,86 Yellow 3: C.I. I. Direct Orange 2
6,39 Magenta 1: C.I. I. Direct Red 80 Magenta 2: C.I. I. Direct Red 79 Cyan 1: C.I. I. Direct Blue 86,
189,199 Cyan 2: C.I. I. Direct Blue 106 Black: C.I. I. Direct Black 1
7,51,154,19,22,173

Disperse Dye Yellow 1: C.I. I. Disperse Yellow
3, 33, 79, 160, 5, 64 Yellow 2: C.I. I. Disperse Yellow
237, 7, 104 Yellow 3: C.I. I. Disperse Yellow
163 C.I. I. Disperse Orange 73,30 Magenta 1: C.I. I. Disperse Red 1,
137, 283, 135, 191 Magenta 2: C.I. I. Disperse Red 6
0, 146, 145 Cyan 1: C.I. I. Disperse Blue 1
98, 60, 143 Cyan 2: C.I. I. Disperse Blue 3
66, 354, 365, 73 Black: C.I. I. Disperse Black
1,10

Cationic dye Yellow 1: C.I. I. Basic Yellow 6
7,13,21 Yellow 2: C.I. I. Basic Yellow 36 Yellow 3: C.I. I. Basic Orange 2
1, 22 Magenta 1: C.I. I. Basic Red 29,4
6,70 Magenta 2: C.I. I. Basic Red 27, 36 Cyan 1: C.I. I. Basic Blue 75 Cyan 2: C.I. I. Basic Blue 41,8
9 Black: Astrazon Black BNli
q. (Manufactured by Bayer) Diacryl Black SWR-Nliq. (Made by Mitsubishi Kasei Hoechst) Kayacryl Black NL (made by Nippon Kayaku)

The dye ink used in the present invention is
It is composed of the above dye and solvent, and optionally contains a dispersant, a surfactant, a surface tension adjusting agent, a pH adjusting agent, an electric conductivity adjusting agent and the like. Examples of the solvent include water or a mixture of water and a water-soluble organic solvent. Examples of the water-soluble organic solvent include glycols such as ethylene glycol, diethylene glycol, triethylene glycol, thiodiethylene glycol, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether and polyethylene glycol dimethyl ether. The kind is mentioned.

The dye ink is applied to the cloth by the ink jet method. A heating resistance element is embedded in the nozzle, the ink is boiled by the heat generation, and the ink is ejected by the pressure of the bubble. Pulse jet method that applies a signal to deform and excites volume change in the ink chamber to fly ink particles, ink is continuously jetted under pressure from nozzles that are vibrating ultrasonically to form particles, and the particles are controlled to a constant charge Electric field Deflect through it,
It is carried out by a charge control method or the like in which recording and non-recording particles are separately recorded.

The cloth used in the present invention means a woven fabric, a knitted fabric,
Examples include non-woven fabrics. The fibers forming the cloth include natural fibers such as cotton, rayon, hemp, silk and wool, semi-synthetic fibers such as acetate and triacetate, polyester,
Examples thereof include synthetic fibers such as polyamide and acrylic.

After printing such a cloth by the ink jet system using the above dye ink, the cloth is treated by a method according to the dye contained in the dye ink to fix the dye to the fiber.

In printing the cloth, it is preferable to carry out a pretreatment so as to prevent the ink from bleeding. Such a treatment is carried out by using a fluorine compound, a silicon compound,
Water repellent such as zirconium compound, soft water repellent such as octadecylethylene urea, zirconium acetate, polyolefin compound, wax compound, silicone compound or starch, soluble starch, water soluble starch, water soluble starch derivative, carboxymethyl cellulose , Water-soluble cellulose derivatives such as hydroxyethyl cellulose and methyl cellulose, gums such as sodium alginate, gum arabic, locust bean gum and guar gum, water-soluble proteins such as gelatin and glue, sodium polyacrylate, polyvinyl alcohol, polyethylene oxide, polyvinylpyrrolidone , Polyacrylamide, polyethyleneimine, synthetic water-soluble polymers such as quaternized water-soluble cationic polymers, and the like.

[0026]

EXAMPLES The present invention will be specifically described below based on examples.

The colorimetry, which is the basis of the numerical values in the examples, is
Using a Macbeth spectrophotometer M-2020 type, the surface of the print cloth is measured by color measurement.
The a and b values are shown as a and b values.

Example 1 Warp density 136 composed of warp yarn # 50 single yarn and weft yarn # 50 single yarn
A plain woven fabric of 100% cotton with a book / inch and a weft density of 72 / inch, which had been subjected to wicking, desizing, scouring, bleaching, and mercerizing, was used.

On the plain weave, 0.1 part by weight of Duck Algin NSPH (high viscosity sodium alginate manufactured by Kibunsha), 3 parts by weight of sodium carbonate (fixing reaction agent), 5 (urea) of urea (humectant)
After a treatment liquid consisting of 11.9 parts by weight of water and 91.9 parts by weight of water is padded and squeezed with a mangle to 70%, 12
It was dried at 0 ° C. for 2 minutes.

On the other hand, C.I. I. Reactive Yel
Yellow 1 ink containing 20 parts by weight of Low 95 (reactive dye) and 80 parts by weight of water, C.I. I. Reactive
Yellow 2 ink containing 20 parts by weight of Orange 12 (reactive dye) and 80 parts by weight of water, C.I. I. Reacti
ve Red 24 (reactive dye) 20 parts by weight and 80 parts by weight of magenta 1 ink, C.I. I. Reacti
ve Red 218 (reactive dye) 20 parts by weight and water 80
Magenta 2 ink consisting of parts by weight, C.I. I. React
20 parts by weight of ive Blue 15 (reactive dye) and 8 parts of water
0 parts by weight of cyan 1 ink, C.I. I. React
20 parts by weight of Ive Blue 49 (reactive dye) and 8 parts of water
0 parts by weight of cyan 2 ink, C.I. I. React
20 parts by weight of iveBlack 1 (reactive dye) and 80 parts of water
7 kinds of black ink consisting of parts by weight is mounted on an inkjet printer having 7 inkjet heads, 12 dots / mm of continuous printing is performed on the pretreated fabric, and each color is a single color or a combination of scarlet and orange. , Violet and Royal Blue were printed. Then, after drying at 120 ° C. for 2 minutes, steam treatment was performed at 105 ° C. for 10 minutes in saturated steam, and then washing was performed to obtain the product of Example 1.

Example 2 A product of Example 2 was obtained by performing the same processing as in Example 1 except that 6 colors were printed without using the magenta 2 ink in Example 1.

Comparative Example 1 A product of Comparative Example 1 was obtained by performing the same processing as that of Example 1 except that the yellow 2 ink, the magenta 2 ink and the cyan 2 ink were not used in printing in 4 colors. .

Comparative Example 2 A product of Comparative Example 2 was obtained by performing the same processing as in Example 1 except that the yellow 1 ink, the magenta 1 ink, and the cyan 1 ink were not used in printing in 4 colors. .

The hues of the products obtained in Example 1, Example 2, Comparative Example 1 and Comparative Example 2 are shown in Table 1.

[0035]

[Table 1]

As is clear from Table 1, in Examples 1 and 2, clear scarlets, orange and dark violet, and Royal Blue were obtained in the blended colors, but in Comparative Example 1, clear colors were obtained. No dark color was obtained. In Comparative Example 2, although a dark color was obtained, a clear color was not obtained.

Example 3 In Example 1, C.I. I. Reactive Ora
C. in place of nge 12. I. Reactive Or
A product of Example 3 was obtained by performing the same processing as in Example 1 except that yellow 13 ink was used by using Age 13.

Comparative Example 3 A product of Comparative Example 3 was obtained by performing the same processing as in Example 3 except that the yellow 3 ink, the magenta 2 ink, and the cyan 2 ink were used in Example 2 and printing was performed in 4 colors. Same as Comparative Example 1).

Comparative Example 4 The product of Comparative Example 4 was obtained by performing the same processing as in Example 3 except that the yellow 1 ink, the magenta 1 ink, and the cyan 1 ink were not used in printing in 4 colors. .

The hues of the products obtained in Example 3, Comparative Example 3 and Comparative Example 4 are shown in Table 2.

[0041]

[Table 2]

As is apparent from Table 2, in Example 3, scarlet having a clear blend color, orange and dark violet, and Royal Blue were obtained, but in Comparative Example 3, the sharpness of the scarlet was slightly inferior, and orange, It can be seen that violet and royal blue were not obtained, and in Comparative Example 4, violet was obtained, but scarlet, orange and royal blue were not obtained.

[0043]

As described in detail above, according to the method of the present invention, the hue range is expanded, a product having a clear hue is obtained, and a hue comparable to that of screen printing is obtained. It can and is very useful. Further, in printing, there is no need for a screen frame or the like in conventional general printing, and it is possible to produce small lots and a wide variety of products, and it is possible to quickly respond to diversification of fashion.

Claims (2)

[Claims] 1. A hue range on a fabric [CIE1976
(L, a, b) space], in addition to the dyes I, II, III and IV whose perceptual chromaticity indices a and b are in the following ranges, the above perceptual chromaticity indices a and b are in the following ranges: Dye V which is
To VIII, at least one type of dye selected from the group VIII is used to print a fabric by an inkjet method. I Yellow 1: (a) -20 to 0 (b)
50-90 II Magenta 1: (a) 50-70 (b)
0-20 III Cyan 1: (a) -50 to -10 (b)-
50 to -20 IV black: (a) -6 to 6 (b)
-6 to 6 V Yellow 2: (a) 0 to 20 (b)
50-90 VI Cyan 2: (a) -10-20 (b)-
50--20 VII Yellow 3: (a) 20-70 (b)
40-90 VIII Magenta 2: (b) 50-70 (b)-
20-0 2. A hue range on a fabric [CIE1976
(L, a, b) space], an ink-jet printing method, characterized in that a fabric is printed by an ink-jet method using dyes I to IV having perceptual chromaticity indexes a and b defined below. . I Yellow 1: (a) -20 to 0 (b)
50-90 II Magenta 1: (a) 50-70 (b)
0-20 III Cyan 1: (a) -50 to -10 (b)-
50 to -20 IV black: (a) -6 to 6 (b)
-6 to 6 V Yellow 2: (a) 0 to 20 (b)
50-90 VI Cyan 2: (a) -10-20 (b)-
50 to -20