JPH08127982A - Fabric for ink-jet printing and ink-jet printing method - Google Patents

Abstract

PURPOSE: To obtain fabric for ink-jet printing capable of providing picture qualities having deepness and high concentration free from blot and excellent coloring concentration on the back of the fabric, by providing fabric with a specific water-soluble resin. CONSTITUTION: This fabric for ink-jet printing is formed by applying 0.1-30wt.% of a mixture of a polyethylene oxide resin having >=100,000 viscosity-average molecular weight and at least one compound selected from sodium citrate, EDTA sodium salt, (thio)urea and synthetic mica to fabric. The fabric is printed in multicolor by using an ink-jet color printer, colored by steaming, then cleaned and dried to give printed fabric.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink-jet printing cloth for recording on a cloth using an ink-jet recording method,
And a printing method.

[0002]

2. Description of the Related Art Conventionally, as a method for ink-jet recording on a cloth, a cloth is temporarily adhered to a non-stretchable flat support coated with an adhesive and printed by a printer (JP-A-63-6183). Or a method of ink-jet dyeing on a cloth pretreated with an aqueous solution containing any of a water-soluble polymer substance which is non-dyeing to a dye used, a water-soluble salt and water-insoluble inorganic fine particles (Japanese Patent Publication No. 63- 31594), a method of pretreating cellulose fibers with an aqueous solution containing an alkaline substance and urea or thiourea and a water-soluble polymer substance, inkjet dyeing with an ink containing a reactive dye, and performing dry heat fixing treatment (Japanese Patent Publication No. 4-35351). ) Etc. The purpose of these prior arts is to prevent image bleeding, and to obtain a sharp pattern and a high density and clear printed material. However, the conventional printing method (screen printing)
It has not reached the same level of color density and vividness as the printed product obtained in step 1. Furthermore, since the penetration of the cloth in the thickness direction is poor, the depth of color and uniform color loss on the back surface are insufficient. Therefore, the range of application of textiles was limited.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to obtain a high-density image having a deep depth without bleeding on a cloth, and further to the cloth. An object of the present invention is to provide a fabric for inkjet printing and a printing method in which the color density of the back surface of the sheet is sufficient.

[0004]

In order to achieve the above object, the present invention comprises applying a water-soluble resin having a viscosity average molecular weight of 100,000 or more to a cloth in an amount of 0.1 to 30% by weight based on the cloth. We propose a new ink-jet printing cloth,
It includes that the water-soluble resin is a polyethylene oxide resin.

According to the present invention, the cloth has a viscosity average molecular weight of 1
A mixture of 0,000 or more polyethylene oxide resin, a water-soluble salt and / or an alkaline agent is added to the fabric in an amount of 0.
It is a fabric for inkjet printing, which is made to adhere by 1 to 30% by weight.

Further, in the present invention, the cloth has a viscosity average molecular weight of 1
A mixture of 0,000 or more polyethylene oxide resin and at least one compound selected from sodium citrate, sodium salt of EDTA, urea, thiourea, and synthetic mica is used in an amount of 0.1 to 30 with respect to the cloth. It is a fabric for inkjet printing, which is made to adhere by weight%.

Further, in the present invention, a water-soluble resin having a viscosity average molecular weight of 100,000 or more is adhered to a cloth in an amount of 0.1 to 30% by weight, ink-jet recording is performed on the cloth, and then color development treatment is performed and then washing is performed. A printing method characterized by drying, wherein the water-soluble resin is a polyethylene oxide resin.

The present invention further provides a polyethylene oxide resin having a viscosity average molecular weight of 100,000 or more, water-soluble salts, and
Alternatively, a mixture of alkaline agents is added to the fabric in an amount of 0.1-3
Inkjet recording is performed on 0% by weight of the cloth, followed by color development, washing and drying, and a polyethylene oxide resin having a viscosity average molecular weight of 100,000 or more, sodium citrate, and EDTA. Inkjet recording is performed on a cloth to which 0.1 to 30% by weight of the mixture of the sodium salt, urea, thiourea, and at least one compound selected from synthetic mica is adhered to the cloth, and This is a printing method characterized by washing and drying after color development.

The present invention will be described in detail below.

In the present invention, a water-soluble resin having a viscosity average molecular weight of 100,000 or more is pretreated on a cloth in order to suppress image bleeding on the cloth and obtain a high-density image with deep color. Inkjet recording is performed on the cloth applied with 0.1 to 30% by weight.

The type of cloth used in the present invention is cotton,
Silk, hemp, nylon, rayon, acetate, polyester and blended fabrics thereof. It is necessary to change the pH of the treatment agent depending on the type of these fabrics.
Cotton, silk, hemp and rayon are recorded with a reactive dye by controlling the pH to an alkaline pH with sodium bicarbonate or sodium carbonate, whereas in the case of nylon, the pH is controlled to be acidic and recording is performed with an acid dye. In the case of acetate and polyester, the pH is preferably near neutral.

Examples of the above water-soluble resin used in the present invention include polyethylene oxide resin, polyacrylate resin, polyvinyl methyl ether resin, polyvinyl alcohol resin, polyvinylpyrrolidone resin, and polydiaryldimethylammonium chloride resin. High molecular weight products are preferred. These resins have not only the ability to absorb and retain a large amount of ink and the ability to suppress the diffusion of a large amount of ejected ink to prevent image bleeding and color mixing at the edges of the image, but also polyethylene oxide resin and polyvinyl methyl ether. The present invention was found to have the function of preventing the dye from diffusing toward the surface direction of the cloth during color development processing such as steaming in a resin, and also to have the effect of preventing image bleeding during color development processing. is there. The reason why such an effect is exhibited is that the water-soluble resin of the present invention has a very high molecular weight and has good compatibility with the ink, so that when the ink is mixed, the fluidity of the ink is suppressed to cause bleeding. And it seems to prevent the color mixing of the picture. In addition, since the polyethylene oxide resin and the polyvinyl methyl ether resin have the property of being melted and softened at the heating temperature at the time of color development and have a weak dyeing property with the dye,
It is considered that image bleeding due to heated steam during color development processing can be suppressed. Such effects of the present invention are remarkable when a water-insoluble disperse dye-containing ink is used. The reason for this is considered to be that the disperse dye-containing ink contains a large amount of a dispersant, which binds to the polyethylene oxide resin to form an insoluble complex. Further, the higher the molecular weight of this resin, the greater the effect of suppressing the fluidity when a plurality of inks are mixed, and the greater the melt softening viscosity at the time of heating, so that the effect of the present invention becomes greater.

It has also been found that the greater the amount of resin applied to the cloth, the greater the effect of the present invention. Those having a viscosity average molecular weight of 100,000 or more, more preferably 200,000 or more, and further preferably 500,000 or more and 3,000,000 or less are suitable. If the viscosity average molecular weight is 100,000 or less, the effect of the present invention is not obtained. If it is 3,000,000 or more, the solution viscosity tends to be too high and the coating tends to be non-uniform, which is not preferable in some cases. Here, the viscosity average molecular weight is the Mark-Houwin obtained by determining the intrinsic viscosity of the resin.
It is obtained by calculation from the equation of k, and the value is said to be close to the value of the weight average molecular weight.

The amount of the water-soluble resin attached to the cloth is preferably 100% by weight of the cloth, and 0.1 to 30% by weight of the weight of the cloth is further attached to the water-soluble resin. If the molecular weight is too high, the viscosity of the aqueous solution becomes high, and it becomes difficult to pretreat the applied amount uniformly. Therefore, it is necessary to reduce the concentration of the treatment solution.

For example, the polyethylene oxide resin most preferably used in the present invention has a molecular weight of 100.
When it is less than 10,000, 2 to 20% by weight is preferable, and when the molecular weight is 1,000,000 or more, 0.5 to 2% by weight is a preferable resin concentration of the treatment solution.

When a high molecular weight resin is used at a high concentration, an inorganic salt may be added to reduce the viscosity. Examples of inorganic salts include potassium sulfate, sodium sulfate, magnesium sulfate, potassium fluoride, potassium chloride, potassium bromide, potassium iodide and the like. It is also effective to add an alkaline agent, and specific examples thereof include phosphoric acid, boric acid, silicic acid, acetic acid, carbonic acid, citric acid, tartaric acid, maleic acid, phthalic acid, and their alkali metal salts, ammonium salts, triethylamine salts. , Triethanolamine salt, and caustic soda and triethanolamine.

Further, in the present invention, urea, thiourea,
The combined use of tannic acid, lignin sulfonic acid, a chelating agent such as sodium salt of EDTA, and a cationic polymer is effective in making the coating amount uniform.

The amount of the above-mentioned salts or urea added is 1 to 30% by weight, preferably 1 to 20% by weight, based on the total weight of the treatment liquid.
It is more preferably 1 to 15% by weight, the content of the water-soluble resin at this time is preferably 0.5 to 20% by weight, the content of the cationic polymer is 0.01 to 3% by weight, an alkaline agent The content of is preferably 0.1 to 5% by weight.

Furthermore, it is more preferable to use an inorganic pigment in combination in order to enhance the effect of the present invention. Preferred inorganic pigments include silica, alumina, talc, kaolin,
Bentonite, calcium carbonate, zeolite, synthetic mica, etc. are more preferable, and synthetic mica is added in an amount of 1 to 30% by weight, preferably 2 to 20% by weight based on the total weight of the treatment liquid.

Furthermore, in the present invention, pretreatment with a cationizing agent may be carried out for the purpose of improving the coloring effect of the image. In general, the cationization treatment improves the dyeing efficiency of anionic dyes, and is mainly applied to cotton and rayon to modify the dyeability of acid dyes and improve the dyeing ratio of reactive dyes. Specific examples of such a cationizing treatment agent and a treatment method are disclosed in JP-B-39-598.
5, JP-B-46-40510, JP-A-60-13408
0 is described.

For example, a cationic substance is contained in the cloth by applying or impregnating the cloth with a solution containing the compounds of the following specific examples, followed by heating, curing, washing with water and drying. The amount of these substances applied to the cloth varies depending on the treatment method and the type of compound applied,
Generally, it is preferably about 0.01 to 30% by weight based on the weight of the fabric.

[0022]

Embedded image

[0023]

Embedded image

[0024]

Embedded image (X represents a halogen element such as Cl or Br.) In the present invention, in order to attach a water-soluble resin, a water-soluble salt, an inorganic salt, an alkaline agent or the like to the cloth, pretreatment of these aqueous solutions is performed. Used as an agent.

If desired, various additives may be further added to the pretreatment agent. For example, various active agents, penetrants, water-dispersible polymers, water-soluble solvents such as glycols,
Examples include reduction inhibitors such as sodium metanitrobenzene sulfonate.

The amount of the pretreatment agent of the present invention applied to the cloth is 0.1 to 30% by weight, more preferably 0.3 to 20% by weight, and the method for applying the cloth to the cloth is Alternatively, an aqueous solution or dispersion of the pretreatment agent can be applied, impregnated, or sprayed.

Next, a method for performing ink jet recording using the cloth of the present invention will be described. The ink that can be used may be any of reactive dyes, acid dyes, direct dyes, and disperse dyes, and an ink of the optimum dye can be used according to the type of cloth. Among them, those which print an acetate, polyester, especially a new synthetic fiber polyester cloth with a disperse dye ink are most preferable.

Printing may be carried out by scanning the cloth of the present invention with an ink jet print head to apply ink in an image form. After application, the object is achieved by subjecting to heat color development treatment, if necessary, followed by washing and drying.

For the heating color development treatment, a known method used in the conventional textile printing process is applied as it is. That is, the high temperature steam method or the thermosol method is used. Actual treatment conditions differ depending on the type of cloth, but when cotton or silk is dyed with a reactive dye ink, the high temperature steam method is used.
Treat at 0-105 ° C for 5-30 minutes. When polyester is dyed with a disperse dye ink, it is treated at 160 to 180 ° C. for several minutes to several tens of minutes in the high temperature steam method, and at 190 to 230 ° C. for several seconds to several tens seconds in the thermosol method.

After the color-developing treatment, a washing step is carried out. Generally, washing with water and soaping with an aqueous solution containing an alkaline agent are carried out. In the case of polyester cloth, after washing with water, it is standard to carry out reduction washing with an aqueous solution containing an alkali agent and hydrosulfide, and then further washing with water.

The constituent components of the ink jet recording ink used in the present invention include dyes, water, water-soluble organic solvents, and p.
An H regulator, an antifungal agent, a surfactant, a water-soluble resin, etc. are appropriately used. Acid dyes, direct dyes, basic dyes, reactive dyes, disperse dyes, and pigments are used as the dyes. Examples of water-soluble organic solvents are glycols, glycol ethers, nitrogen-containing solvents, alcohols and the like. Examples of the surfactant include nonion, anion, cation,
Both active agents of both sexes can be used, and they are used properly according to the purpose. In addition, a hydrotropic agent such as urea may be used.

As a method and apparatus suitable for carrying out ink jet recording using the ink jet printing cloth of the present invention, for example, heat energy is applied to the ink inside the head chamber in response to a signal, and the ink is generated by the heat energy. Methods and devices for generating droplets are included.

An example of the head structure, which is the main part of the apparatus, is shown in FIGS. 1, 2 and 3.

The head 13 is a glass, ceramics or plastic plate having a groove 14 through which ink passes, and a heating head 15 used for thermal printing (the head is shown in the drawing, but is not limited to this). It is obtained by bonding and. The heating head 15 includes a protective film 16 formed of silicon oxide, an aluminum electrode 17-
1, 17-2, heating resistance layer 1 formed of nichrome, etc.
8, heat storage layer 19, substrate 20 having good heat dissipation such as alumina
Has become

The ink 21 is a discharge orifice (fine hole) 2
2, the meniscus 23 is formed by the pressure P. Here, when an electric signal is applied to the electrodes 17-1 and 17-2, the area indicated by n of the heating head 15 rapidly generates heat, and bubbles are generated in the ink 21 in contact therewith,
The meniscus 23 is projected by the pressure, the ink 21 is ejected, becomes an ink droplet 24 from the orifice 22, and is jetted toward the inkjet printing cloth 25.

FIG. 3 shows an external view of a multi-head in which many heads shown in FIG. 1 are arranged. The multi-head is manufactured by closely adhering a glass plate 27 having multi-grooves 26 and a heating head 28 similar to that described in FIG. 1 is a cross-sectional view of the head 13 along the ink flow path, and FIG. 2 is a cross section taken along the line AB of FIG.

FIG. 4 shows an example of an ink jet printing apparatus incorporating such a head.

In FIG. 4, reference numeral 61 denotes a blade as a wiping member, one end of which is held by a blade holding member to become a fixed end, which is in the form of a cantilever. The blade 61 is arranged at a position adjacent to the print area of the head, and in the case of this example, is held in a form protruding in the moving path of the head. Reference numeral 62 denotes a cap, which is arranged at a home position adjacent to the blade 61, and has a configuration in which it moves in a direction perpendicular to the moving direction of the head and comes into contact with the ejection port surface to perform capping. 6 more
3 is an absorber provided adjacent to the blade 61,
Like the blade 61, it is held in a protruding form in the movement path of the head. The blade 61, the cap 62, and the absorber 63 constitute an ejection recovery unit 64, and the blade 61 and the absorber 63 remove water, dust, and the like from the ink ejection port surface.

Reference numeral 65 denotes a head having ejection energy generating means, which ejects ink onto a print medium (ink jet textile fabric) facing the ejection port surface provided with ejection ports to print, and 66 is a head 65. It is a carriage for moving the head 65. The carriage 66 slidably engages with the guide shaft 67, and a part of the carriage 66 is connected (not shown) to a belt 69 driven by a motor 68. As a result, the carriage 66 can move along the guide shaft 67, and the head 65 can move the print area and its adjacent area.

Reference numeral 51 is a cloth feeding portion for inserting a print medium, and 52 is a cloth feed roller driven by a motor (not shown). With these configurations, the print medium is applied to the position facing the ejection port surface of the head, and is discharged to the discharge section provided with discharge rollers 53 as the printing progresses.

In the above configuration, when the head 65 returns to the home position due to the end of printing, the head recovery unit 64
The cap 62 is retracted from the movement path of the head 65, but the blade 61 is projected in the movement path. As a result, the ejection port surface of the head 65 is wiped. When the cap 62 comes into contact with the ejection surface of the head 65 for capping, the cap 62 moves so as to project into the movement path of the head.

When the head 65 moves from the home position to the print start position, the cap 62 and the blade 61 are in the same position as the above-mentioned position for wiping. As a result, the ejection opening surface of the head 65 is wiped even during this movement.

The above-described movement of the head to the home position is performed not only at the end of printing or at the time of ejection recovery, but also at the home position adjacent to the print area at a predetermined interval while the head moves in the print area for printing. It moves, and the wiping is performed along with this movement.

FIG. 5 is a diagram showing an example of an ink cartridge in which ink is supplied to the head via an ink supply member, for example, a tube. Here, 40 is an ink containing portion containing the ink for supply, for example, an ink bag, and a rubber stopper 42 is provided at the tip thereof. By inserting a needle (not shown) into this stopper 42, the ink in the ink bag 40 can be supplied to the head. 44
Is an absorber that receives waste ink. As the ink supply member, one in which the liquid contact surface with the ink is formed of polyolefin, particularly polyethylene is preferable for the present invention. The ink jet printing apparatus used in the present invention is not limited to the above-described head and ink cartridge which are separate bodies, but may be preferably used as an integrated one as shown in FIG.

In FIG. 6, reference numeral 70 denotes a print unit, in which an ink containing portion for containing ink, for example, an ink absorber is housed, and the ink in the ink absorber has a plurality of orifices. Part 71
It is configured to be ejected as an ink droplet from. Polyurethane is preferably used as the material of the ink absorber. Reference numeral 72 denotes an atmosphere communication port for communicating the inside of the print unit with the atmosphere. This print unit 7
Reference numeral 0 is used in place of the head 65 shown in FIG. 4, and is removable from the carriage 66.

The ink-jet printing cloth printed by such an apparatus is heated if necessary, then washed with water, the cloth is peeled from the substrate and dried. Alternatively, a printed matter can be obtained by peeling the cloth from the substrate after drying.

The obtained printed matter is cut into a desired size as needed, and the cut pieces are sewn on.
Processes such as adhesion and welding to obtain a final processed product are performed, and a processed product such as a tie and a handkerchief can be obtained.

[0048]

EXAMPLES Next, the present invention will be described more specifically with reference to examples. In addition,% is based on weight unless otherwise specified.

Example 1 Cotton (thickness: 250 μm) treated with trimethyl-2hydroxy-3 chloropropylammonium chloride as a reactive quaternary amine compound was added to polyethylene oxide (Alcox E-60 manufactured by Meisei Chemical Co., Ltd., viscosity). 2.0% of average molecular weight: 100 to 1.2 million), 1.0% of sodium citrate, and 2% of urea were impregnated (squeezing ratio: 80%) and dried to obtain a fabric of the present invention. . The obtained cloth of the present invention was cut into a size of A4 size, and a commercially available inkjet color printer (BJC-8 manufactured by Canon Inc.) was used.
20J) was used for multi-color printing. Immediately after printing, after steam heating at 102 ° C for 8 minutes,
It was thoroughly washed with a 0.1% aqueous solution of sodium dodecylbenzenesulfonate and dried. A deep and sufficient color image was vividly printed on the cotton. Also,
A sharp image was obtained without stains on the white part where ink did not adhere. Example 2 An aqueous solution containing 1.0% of polyethylene oxide (ALCOX E-75, viscosity average molecular weight: 200 to 2,500,000), 3% of potassium chloride and 3% of sodium hydrogen carbonate was used as a plain-woven cotton cloth having a thickness of 200 μm. To impregnate (drawing ratio:
After being dried (80%), it was cut into a sheet having a size of A4 size. Then, using a commercially available inkjet color printer (BJC-820 manufactured by Canon Inc.), full color printing was performed with the inks shown below. Immediately after completion of printing, the cloth was subjected to color development in steam at 102 ° C. for 8 minutes, then washed with water and dried. On the obtained cotton cloth, a deep and sufficient density color image was vividly printed. In addition, the color density of the front and back surfaces of the fabric was high and a sharp image was obtained.

Ink Composition Cyan Ink C.I. I. Reactive Blue 15 12 parts Thiodiglycol 22 parts Ethylene glycol 13 parts Ion-exchanged water 53 parts Magenta ink C.I. I. Reactive Red 226 11 parts Thiodiglycol 22 parts Diethylene glycol 13 parts Ion-exchanged water 54 parts Yellow ink C.I. I. Reactive Yellow 95 10 parts Thiodiglycol 22 parts Diethylene glycol 13 parts Ion-exchanged water 55 parts Black ink C.I. I. Reactive Black 39 9 parts Thioglycol 22 parts Ethylene glycol 13 parts Ion-exchanged water 56 parts The above four inks are mixed and stirred, and after adjusting the pH to 7.0 with sodium hydroxide, filtered with a fluoropore filter. I used it.

Example 3 Pad treatment (squeeze ratio: 70%) with an aqueous solution containing 1.0% of polyethylene oxide (ALCOX E-100, viscosity average molecular weight: 250 to 300) and 2% of sodium sulfate. A polyester cloth having a thickness of 200 μm was prepared. Then, it was cut into a roll with a width of 42 cm and a commercially available inkjet color printer (Canon BJ
C-440) was used to perform full-color printing with the ink containing the disperse dye shown below. Immediately after the printing was completed, the printed portion was cut off, and color-developed with superheated steam at 180 ° C. for 5 minutes. Next, reduction washing was carried out with an alkaline solution containing hydrosulfide, washing with water and drying. On the obtained polyester cloth, a deep and sufficient density color image was vividly printed. In addition, a sharp image was obtained without stains on the white part to which the ink did not adhere. Further, the image density on the back side was also sufficient.

Ink Composition Cyan Ink C.I. I. Disperse Blue 87 7 parts Sodium lignin sulfonate 1 part Thiodiglycol 15 parts Triethylene glycol 15 parts Ion-exchanged water 62 parts Magenta ink C.I. I. Disperse Red 92 6 parts Sodium lignin sulfonate 1 part Thiodiglycol 15 parts Triethylene glycol 15 parts Ion-exchanged water 63 parts Yellow Ink C.I. I. Disperse Yellow 93 6 parts Sodium lignin sulfonate 1 part Thiodiglycol 15 parts Triethylene glycol 15 parts Ion-exchanged water 63 parts Black ink C.I. I. Disperse Black 1 8 parts Sodium lignin sulfonate 1 part Thioglycol 15 parts Triethylene glycol 15 parts Ion-exchanged water 61 parts The above components were mixed and dispersed using a sand grinder, and filtered and used.

Example 4 Pad treatment (squeeze ratio: 90) with an aqueous solution containing 0.1% of polyethylene oxide (Alcox E-75).
%) And dried new synthetic polyester cloth (fiber thickness:
0.8 denier) was prepared. The operation after this is Example 3
The same procedure as above was performed to obtain the final printed matter. On the obtained polyester cloth, a deep and sufficient density color image was vividly printed. Furthermore, a sharp image was obtained on the front and back without stains on the white spots where no ink was attached.

Example 5 Polyvinyl methyl ether (Ruttonal M manufactured by BASF)
A nylon cloth (thickness: 240 μm) impregnated with an aqueous solution containing 40%, a viscosity average molecular weight: 200,000 and 6.0% and a urea content of 4% was prepared (thickness: 70%). This is A
It was cut out into a size of 3 plates and subjected to multicolor printing using a commercially available inkjet color printer (BJC820J manufactured by Canon Inc.). Immediately after printing,
It was treated with superheated steam at 102 ° C. for 8 minutes, then washed with water and dried. On the obtained nylon cloth, a color image having a uniform depth and sufficient density was vividly printed. In addition, a sharp image was obtained without stains on the white part to which the ink did not adhere.

Examples 6 to 11 The polyester fabric was pretreated in the same manner as in Example 4 except that the pretreatment liquid of the present invention shown in Table 1 was used in place of the aqueous polyethylene oxide solution of Example 4, and the ink jet recording was performed. In the same manner as in Example 4, a printed material was obtained through the color development and water washing steps. The results obtained are summarized in Table 1. A comparative example is also shown.

[0056]

[Table 1] * Sharpness: ◎ ・ No bleeding and no color mixture at the time of drawing ○ ・ ・ No bleeding and a slight amount of color mixing at the place where the ink amount is large △ ・ ・ There is no bleeding but a little color mixing at the time of painting ×・ ・ Smearing of bleeding and color mixing * Color density: ○ ・ ・ Color density that is clear and deep △ ・ ・ Color density that is clear but has no depth × ・ ・ Color that is unclear and has no depth Concentration Comparative Example 3 Instead of the polyethylene oxide used in Example 2,
A printing cloth was obtained in the same manner as in Example 2 except that 1.0% of sodium alginate having a molecular weight of 90,000 was used. Multicolor printing was performed on the fabric using the same ink and printer as in Example 2. After printing, the same process as in Example 2 was carried out to obtain a printed material. A bright color image was obtained on the cotton cloth, but a deep and sharp image with sufficient density could not be obtained.

[0057]

As described above, according to the present invention,
It is possible to record a high-density image having a depth without bleeding on the cloth. Further, according to the present invention, a clear printed material having a high color density can be obtained even if it is directly applied to a commercial inkjet printer for office or personal use. Further, according to the present invention, it is possible to obtain an ink-jet printing cloth having a sufficient color density on the back surface of the cloth.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an example of a head portion of an inkjet printing apparatus used in the present invention.

FIG. 2 is a transverse cross-sectional view of the head portion of FIG. 1 taken along the line AB.

FIG. 3 is an external perspective view showing an example of a multi-head.

FIG. 4 is a perspective view showing an example of a head portion of the inkjet printing apparatus used in the present invention.

FIG. 5 is a vertical sectional view showing an example of an ink cartridge used in the present invention.

FIG. 6 is a perspective view showing an example of a print unit used in the present invention.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Fumi Takade 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Tomoya Yamamoto 3-30-2 Shimomaruko, Ota-ku, Tokyo Kya Non-Incorporated (72) Inventor Mariko Suzuki 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (8)

[Claims] 1. A fabric for inkjet printing, comprising a water-soluble resin having a viscosity average molecular weight of 100,000 or more adhered to the fabric in an amount of 0.1 to 30% by weight based on the fabric. 2. The ink-jet printing cloth according to claim 1, wherein the water-soluble resin is a polyethylene oxide resin. 3. An ink-jet printing method, wherein a mixture of a polyethylene oxide resin having a viscosity average molecular weight of 100,000 or more, a water-soluble salt and / or an alkali agent is attached to a cloth in an amount of 0.1 to 30% by weight based on the cloth. Cloth. 4. A polyethylene oxide resin having a viscosity average molecular weight of 100,000 or more, sodium citrate, and EDT.
A fabric for ink-jet printing, comprising a mixture of the sodium salt of A, urea, thiourea, and at least one compound selected from synthetic mica, which is attached to the fabric in an amount of 0.1 to 30% by weight. 5. A cloth having a water-soluble resin having a viscosity average molecular weight of 100,000 or more adhered to the cloth in an amount of 0.1 to 30% by weight is subjected to ink jet recording, then subjected to color development treatment, and then washed and dried. Characteristic printing method. 6. The printing method according to claim 5, wherein the water-soluble resin is a polyethylene oxide resin. 7. Ink jet recording is performed on a cloth on which a mixture of a polyethylene oxide resin having a viscosity average molecular weight of 100,000 or more, a water-soluble salt and / or an alkali agent is adhered in an amount of 0.1 to 30% by weight based on the cloth. A printing method, which comprises performing a coloring treatment, then washing and drying. 8. A mixture of a polyethylene oxide resin having a viscosity average molecular weight of 100,000 or more and at least one compound selected from sodium citrate, sodium salt of EDTA, urea, thiourea and synthetic mica, A textile printing method, characterized in that ink-jet recording is carried out on a cloth adhered to the cloth in an amount of 0.1 to 30% by weight, followed by color development, washing and drying.