JPH0813357A - INKJET PRINTING FABRIC, INKJET PRINTING METHOD, AND PRINTED PRODUCT - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a fabric for inkjet printing, which has excellent dyeability, cost performance, and transportability in an apparatus, a method for printing the same, and a printed material. [Structure] In an inkjet printing cloth woven and woven mainly from a mixed fiber or a mixed fiber of a hydrophilic fiber and a hydrophobic fiber dyed with a water-based ink containing a dye, the hydrophilic fiber is relative at 20 ° C. The moisture content in an atmosphere of 65% humidity is 9% by weight or more.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cloth for ink-jet printing, a method for ink-jet printing, and a printed material thereof, and in particular, when a print image is formed by an ink-jet method, it has a high dyeing ratio, high color development, and is clear and delicate. The present invention relates to a cloth for ink-jet printing, a method for ink-jet printing, and a printed material, which are woven and woven mainly from mixed-spun yarns and mixed-fibers capable of obtaining various patterns.

[0002]

2. Description of the Related Art The mainstream of current printing is screen printing,
Roller printing. All of these methods require printing plates for printing. For this reason, it is not suitable for high-mix low-volume production, and it is difficult to respond quickly to trends. Therefore, a plateless electronic printing system has recently been demanded. In response to this demand, many printing methods using ink jet recording have been proposed, and expectations from various fields are increasing. Here, as the ink-jet printing cloth used for printing, (1) the ink can be developed to a sufficient density, (2) the dyeing rate of the ink is high,
(3) The ink dries quickly on the cloth, (4)
Less occurrence of irregular ink bleeding on the fabric,
(5) Performance such as excellent transportability in the apparatus is required.

Conventionally, in order to satisfy these required performances, a cloth has been pretreated mainly in advance. For example, Japanese Patent Laid-Open No. 62-53492 proposes cloths having an ink receiving layer.

However, although such a pretreatment has a partial effect on the above requirements, the superiority or inferiority of the printed image after the final step is largely due to the basic characteristics of the fabric base material used. However, there is a problem that it is not possible to obtain a sufficiently satisfactory product.

Further, the transportability of the cloth in the textile printing apparatus may be rather deteriorated by the pretreatment. In particular, the influence of the base material is great in the conveyance of the ink-jet printing cloth mainly composed of the yarn containing the hydrophobic fiber in the printing apparatus.

As described above, in the prior art, even if a means capable of satisfying the individual performances to some extent can be found, all the above performances can be satisfied at the same time, and the finest image that solves the series of problems can be obtained. The ink-jet printing cloth and the ink-jet printing method are not known so far.

[0007]

The ink-jet printing method for forming an image by using the dot expression of this ink, which uses a water-based ink having a remarkably low viscosity as compared with the conventional printing paste, is comparative to other printing methods. There are extremely many restrictions based on the physical properties of the cloth, and the restrictions are particularly large in the case of a cloth mainly composed of yarns having hydrophobic fibers.

The inventors of the present invention have made a hydrophobic fiber, which is a basic constituent component of a base material, in addition to an improved method such as a pretreatment of the cloth, which has been conventionally performed, in the cloth for ink-jet printing which is composed of the hydrophobic fiber. By mixing and containing hydrophilic fibers that can maintain a certain amount of water content in the fiber, various properties such as color developability, dyeing rate, fixability, bleeding property, leveling property and transportability are remarkably achieved. We have found that it can be improved.

Therefore, an object of the present invention is to obtain a dyed product having a high density, which is free from ink bleeding, is clear, has excellent leveling properties, and is free from the problems of the conventional general ink jet textiles as described above. The ink-jet printing cloth capable of simultaneously solving the problem of dyeing technology, the problem of cost of good dyeing rate of ink, the problem of operability such as ink fixability and transportability in the apparatus, and the like. An object is to provide an inkjet printing method and a printed material.

[0010]

The above object can be achieved by the present invention described below. That is, the present invention relates to an inkjet textile printing fabric mainly composed of a mixed yarn or a mixed yarn of hydrophilic fibers and hydrophobic fibers dyed with a water-based ink containing a dye, wherein the hydrophilic fibers are at 20 ° C. A fabric for inkjet printing, which has a moisture content of 9% by weight or more in an atmosphere with relative humidity of 65%,
The mixing ratio of hydrophobic fiber and hydrophilic fiber is 20: 1 by weight.
1 to 1, the hydrophobic fiber is a fiber having an ester bond or a peptide bond, the hydrophilic fiber is regenerated cellulose, the hydrophilic fiber is mercerized cellulose, inkjet printing The moisture content of the cloth is 5 to 105% by weight, and the cloth has 0.01 to 20% by weight based on the dry weight of the water-soluble metal salt, water-soluble polymer, urea, thiourea, and surfactant. It is a product containing at least one substance selected from the group.

The present invention also provides an ink-jet printing method for applying a printing ink to a cloth, wherein the cloth is the ink-jet printing cloth according to any one of the above, and after the ink is applied to the cloth, the dyeing is performed. The inkjet printing method is characterized by performing a treatment and then performing at least a cleaning treatment. The inkjet printing method includes an inkjet printing method in which thermal energy is used to fly ink droplets.

Further, the present invention is a printed article printed by the above-mentioned ink jet printing method.

Further, the present invention is a processed product obtained by further processing a printed product of high quality, said processed product cutting said printed product into a desired size, and finally cutting the cut pieces. It includes that it is obtained by performing a process for obtaining a processed product, and that the process for obtaining the final processed product is sewing.

[0014]

In the present invention, an excellent printed image can be obtained because the hydrophilic fiber is present in the hydrophobic fiber in an appropriate amount so that it has a significantly low viscosity as compared with the printing paste which has been conventionally reported. Even when printing with various water-based inks for inkjet, the hydrophilic fibers hold the water-based ink quickly and prevent irregular bleeding.

Furthermore, since this hydrophilic fiber has a certain amount of water content, in a general use environment,
This is probably because the swelling state between the hydrophilic fiber and the hydrophobic fiber and between the hydrophobic fibers is optimized, and the diffusion of the dye during dyeing and the bond formation between the fiber and the dye are optimized.

Further, the mechanical strength at the time of carrying the cloth is well balanced from the viewpoint of highly accurate feeding.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described in more detail with reference to preferred embodiments.

In the present invention, the hydrophobic fiber is 20
Fiber having a moisture content of less than 5% by weight at a temperature of 65 ° C. and a relative humidity of 65%. As these fibers, any of filaments, staples and the like can be used.

The average thickness of the fibers is preferably controlled to 0.01 to 10 d (denier), preferably 0.05 to 8 d, and more preferably 0.01 to 7 d.

As the fiber material, for example, polyester,
Nylon, acrylic, vinylon, vinylidene, polyvinyl chloride, and polypropylene fibers can be mentioned, but the fibers are not limited to these, and any one can be used as long as the moisture content is within the range by treatment such as surface modification. Anything can be used. Among these, those using fibers having an ester bond or a peptide bond in the main chain of the molecule are more preferable in terms of dyeability and operability.

Next, as the hydrophilic fiber which is mixed with the hydrophobic fiber which characterizes the present invention or which is mixed and combined, 20
A fiber having a water content of 9% by weight or more, preferably 9.5 to 20% by weight at a temperature of 65 ° C. and a relative humidity of 65%. As these fibers, any of filaments, staples and the like can be used. Fibers having a moisture content of less than 9% by weight cause inconveniences in terms of color development and bleeding.
Not preferable.

The fibers whose average thickness is controlled to 0.1 to 3d are preferably used. When the average thickness of the fibers is smaller than 0.1d, the fabric is inconvenient in terms of transportability, and when it is larger than 3d, bleeding or resolution is problematic, which is preferable. May not be.

The fiber material includes, for example, silk, hemp, regenerated cellulose, and wool fiber, but is not limited to these fibers, and the moisture content in the range is within the range by treatment such as surface modification and mercerization. Anything that comes in can be used. Among these, regenerated cellulose and mercerized cellulose fiber are more preferable.

Furthermore, in the mixed yarn or the mixed yarn constituting the textile printing fabric of the present invention, the mixing ratio of the above-mentioned hydrophobic fiber and hydrophilic fiber is 20: 1 to 1: 1 by weight. Those that are preferable. When the mixing ratio of the hydrophilic fibers is less than 20: 1 by weight, problems such as bleeding property, fixability and transportability occur, and when the mixing ratio is more than 1: 1 by weight, the dyeing ratio is lowered, which is preferable. There is no.

The mixed spun yarn is a yarn spun by mixing two or more kinds of staple fibers, and may be a single yarn or a twisted yarn obtained by twisting two or more single yarns. The mixed yarn is a yarn in which two or more kinds of filament fibers are mixed, and it can be used as an aligned yarn in which two or more filaments are aligned or in a twisted yarn in which two or more filaments are combined and twisted. . As the thickness of the mixed yarn or the mixed fiber, the average thickness of the final yarn is preferably 5 to 200 d, more preferably 10 to 100 d.
It is controlled by d.

The printing cloth of the present invention refers to woven cloth, knitted cloth, napped cloth and the like. Furthermore, the moisture content of the entire fabric is preferably 5 to 105% by weight. If the water content is less than 5% by weight, problems may occur in terms of color developability and dyeing rate. Further, if the water content exceeds 105% by weight, there is a problem in terms of transportability and bleeding, which is not preferable.

For the method of measuring the water content in the fabric and the fiber, JIS L Ol9 was referred to. That is, 100 g of a sample was accurately weighed, placed in a drier at 105 ± 2 ° C., dried to a constant weight, and the moisture content in the fabric and fiber was determined by the following formula.

Moisture content (% by weight) = {(W−W ′) / W ′} × 100 (where W is the weight before drying, W ′ is the weight after drying) Regarding the water content of the fabric pretreated with a non-volatile or hardly volatile compound such as a water-soluble polymer, the water-soluble property is obtained by performing the same treatment as above to obtain W and W ′, and then washing with water. A compound such as a polymer was removed, and then the fiber was dried again to a constant weight to measure the dry weight W ″ of only the fiber, and the moisture content in the cloth was determined by the following formula.

Moisture content (%) = {(W−W ′) / W ″} × 100 (where W ″ is the weight of the fiber portion after washing with water and drying) The cloth for inkjet printing of the present invention includes: If necessary, a conventional pretreatment method can be used in combination. In particular, the fabric contains 0.01 to 20% by weight of a substance selected from the group of water-soluble metal salts, water-soluble polymers, urea, thiourea and surfactants, based on the dry fabric weight. The water-soluble metal salt in which the water content is controlled may be more preferable. Examples of the water-soluble metal salt include those that form typical ionic crystals, such as halides of alkali metals and alkaline earth metals, and have a pH of 4 to 4 A compound which is 10.
Typical examples of such compounds include alkali metal salts such as NaCl, Na ₂ SO ₄ , KCl and CH ₃ COONa.
And the like, and as the alkaline earth metal salt, Ca
Examples thereof include Cl ₂ and MgCl ₂ . Among them, Na, K, C
Salts of a are preferred.

Examples of the water-soluble polymer include starch substances such as corn and wheat, cellulosic substances such as carboxymethyl cellulose, methyl cellulose and hydroxyethyl cellulose, sodium alginate, arabic gum, locustite bean gum, tragacanth gum, guar gum and tamarind seeds. And polysaccharides, protein substances such as gelatin and casein, and natural water-soluble polymers such as tannin-based substances and lignin-based substances.

Examples of synthetic polymers include polyvinyl alcohol compounds, polyethylene oxide compounds, acrylic acid water-soluble polymers, and maleic anhydride water-soluble polymers. Among these, polysaccharide polymers and cellulose polymers are preferable.

As the surfactant, anionic, cationic, amphoteric and nonionic surfactants are used. Typically, anionic higher alcohol sulfates, sulfonates of naphthalene derivatives, quaternary ammonium salts of cations, imidazoline derivatives of amphoteric type, polyoxyethylene alkyl ethers, polyoxyethylene propyl block polymers of nonionic type. , Sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, ethylene oxide adduct of acetylene alcohol, and the like.

Further, depending on the type of dye used, a reduction inhibitor, a dyeing and fixing agent, etc. can be used in combination with the above-mentioned pretreatment method, if necessary.

The fabric of the present invention is mainly composed of a mixed yarn or a mixed yarn of the above fibers, and the content ratio of the mixed yarn or the mixed yarn is 50 to 100% by weight based on the total weight of the fabric. , And more preferably 70 to 100% by weight. There is no particular limitation on the material other than the main blended yarn or the mixed fiber, and various conventionally known yarns and the like are appropriately knitted and woven.

The above is a description of the constituent components of the ink-jet printing cloth of the present invention.

Next, the printing ink used for the ink-jet printing cloth of the present invention is an ink-jet printing ink composed of a dye and an aqueous liquid medium.

The dye used in these inks is not particularly limited as long as it can dye the above-mentioned hydrophobic fiber. For example, disperse dyes in the case of blended yarns and blended yarns containing polyester fibers, acidic in the case of nylon,
Metal complex salts, disperse and reactive dyes, acidic for acrylic,
Basic and disperse dyes, direct in the case of vinylon, basic,
In the case of naphthol and disperse dyes, vinylidene and polyvinyl chloride, basic, naphthol and disperse dyes can be used. Among them, polyester fiber and disperse dye,
The effect of the present invention is particularly remarkable in the combination of nylon fiber and acid dye. These dyes can be used alone or as a mixture.

In addition to these dyes for dyeing the hydrophobic fibers, dyes capable of dyeing the hydrophilic fibers used in the present invention can be used in combination.

The amount of these dyes used is generally 0.1 to 25% by weight, preferably 0.5 to 20% by weight, and more preferably 1 to 15%, based on the total amount of the ink.
It is in the range of% by weight. If it is less than 0.1% by weight, the color density is insufficient. On the other hand, if it exceeds 25% by weight, the storage stability of the ink is deteriorated and thickening or precipitation due to ink evaporation near the nozzle tip causes ejection failure.

The ink used in the present invention is obtained by adding chlorine ion and / or sulfate ion in an amount of about 10 to 20,000 ppm to the dye contained in the ink, and silicon, iron, nickel and zinc. A preferable embodiment is one in which at least one substance selected from the group consisting of the following is added to the ink in a total amount of about 0.1 to 30 ppm. As a result, when ink jet recording is performed on the ink-jet printing cloth of the present invention using such an ink, a dyed product having a high dyeing rate, no bleeding, and a high density can be obtained. . Further, by using such an ink, it is possible to perform printing with high ejection performance without causing clogging of the head nozzle for a long period of time.

Further, in combination with the above-mentioned metal salt, calcium and / or magnesium is added in a total amount of 0.1 to 30 ppm, preferably 0.2 to 20 with respect to the weight of the ink.
It is desirable that the content is in the range of ppm, more preferably 0.3 to 10 ppm, whereby the dyeing rate can be further improved.

Water, which is an essential component of the liquid medium constituting the ink used in the ink-jet printing method of the present invention, is 30 to 90% by weight, preferably 40 to 40% by weight based on the total amount of the ink.
90% by weight, more preferably 50 to 85% by weight is used.

The above are the main components of the ink jet printing ink used in the present invention, but an organic solvent generally used as a liquid medium of the ink can also be used together. For example, monohydric alcohols such as methanol, ethanol, isopropyl alcohol; ketones or keto alcohols such as acetone and diacetone alcohol; ethers such as tetrahydrofuran and dioxane; diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, tri Oxyethylene or oxypropylene addition polymers such as propylene glycol, polyethylene glycol and polypropylene glycol; alkylene in which the alkylene group such as ethylene glycol, propylene glycol, trimethylene glycol, butylene glycol and hexylene glycol contains 2 to 6 carbon atoms. Glycols; Triols such as 1,2,6-hexanetriol; Thiodiglycol; Glycerin; Ethyleneglycol Rumonomechiru (or ethyl) ether, diethylene glycol monomethyl (or ethyl)
Lower alkyl ethers of polyhydric alcohols such as ethers and triethylene glycol monomethyl (or ethyl) ethers; lower dialkyl ethers of polyhydric alcohols such as triethylene glycol dimethyl (or ethyl) ether and tetraethylene glycol dimethyl (or ethyl) ether Examples: sulfolane, N-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone and the like.

The content of the water-soluble organic solvent is generally in the range of 0 to 50% by weight, preferably 2 to 45%, based on the total weight of the ink.

When the above mediums are used in combination, they can be used alone or as a mixture, but the most preferable liquid medium composition is one in which the solvent contains at least one monohydric or polyhydric alcohol and its derivative. is there. Among them, thiodiglycol, diethylene glycol, triethylene glycol, triethylene glycol monomethyl ether, tetraethylene glycol dimethyl ether and ethanol are particularly good.

The main components of the ink used in the printing method of the present invention are as described above, but various other dispersants, surfactants, viscosity modifiers, surface tension modifiers, optical brighteners, etc. are required. Can be added according to

For example, viscosity modifiers such as urea polyvinyl alcohol, celluloses and water-soluble resins; various cationic or nonionic surfactants; surface tension modifiers such as diethanolamine and triethanolamine; pH adjusters using buffer solutions; Examples thereof include antifungal agents.

In addition, as the dispersant contained in the ink when the hydrophobic fiber in which the effect of the present invention is particularly remarkable is polyester, a so-called dispersant, a surfactant, a resin or the like can be used. As a preferred specific example, as the dispersant or the surfactant, either anionic or nonionic can be used. For example, as anionic compounds, fatty acid salts, alkyl sulfate ester salts, alkylbenzene sulfonates, alkylnaphthalene sulfonates, dialkyl sulfosuccinates, alkyl phosphate ester salts, naphthalene sulfonate formalin condensates, polyoxyethylene alkyl sulfates. Examples thereof include ester salts and substituted derivatives thereof. Nonionic compounds include polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkylamine, glycerin fatty acid ester, oxyethyleneoxy. Examples include propylene block polymers, and substituted derivatives thereof.

Examples of the resin dispersant include styrene and its derivatives, vinylnaphthalene and its derivatives, aliphatic alcohol esters of α, β-ethylenically unsaturated carboxylic acids, and the like.
Acrylic acid and its derivative, maleic acid and its derivative, itaconic acid and its derivative, fumaric acid and its derivative, vinyl acetate, vinyl alcohol, vinylpyrrolidone, acrylamide, and its derivative, etc. Examples thereof include block copolymers, random copolymers and graft copolymers composed of polymers (at least one of which is a hydrophilic monomer), and salts thereof. It is preferable that these synthetic resins are alkali-soluble resins that are soluble in an aqueous solution in which a base is dissolved.

Further, these dispersants may be used alone or in combination with 2.
One or more species can be used in combination. These contents (total content when two or more kinds are used in combination) are
It is in the range of 0.1 to 25% by weight, preferably 0.3 to 23% by weight, more preferably 0.4 to 20% by weight, based on the total weight of the ink.

The above ink is used in a recording apparatus whose one aspect will be described below, whereby a preferable printed material can be produced.

The ink-jet printing method of the present invention is carried out by using the above-mentioned ink-jet printing cloth of the present invention. The ink-jet recording method used may be any conventionally known ink-jet recording method. In the method described in Japanese Patent Application Laid-Open No. 54-59936, the method in which the ink subjected to the action of thermal energy causes a rapid volume change, and the ink is ejected from the nozzle by the action force caused by the state change It is valid. The reason is that, when a recording head having a plurality of nozzles is used, the above-mentioned method has a small variation in the ink ejection speed between the nozzles, and the ink ejection speed is 5 to 2
It can be mentioned that they are aggregated in the range of 0 m / sec. This speed optimizes the degree of permeation of the ink droplets containing the dye into the fibers when the ink droplets strike the cloth. Further, in such a system, when the dyes listed in relation to the ink used in the present invention are used, no foreign matter is deposited on the heater of the recording head or disconnection does not occur even when recording is continuously performed for a long time. , Stable printing is possible.

Further, when the cloth for ink-jet printing of the present invention is used, conditions for obtaining a particularly effective printing method are as follows: discharge droplets are 20 to 200 pl, ink injection amount is 4 to 40 nl / mm ² , dye 0.025 in total
The conditions of ˜1 mg / cm ² , a driving frequency of 1.5 kHz or more, and a head temperature of 35 to 60 ° C. are preferable.

In such an ink jet recording system, stable printing can be carried out by always recording on the ink-jet printing cloth of the present invention.

As an example of an apparatus suitable for printing using the ink-jet printing cloth of the present invention, thermal energy corresponding to a recording signal is applied to the ink in the groove through which the ink of the recording head passes. A device for generating liquid droplets can be mentioned. An example of the structure of the head, which is the main part of the apparatus, is shown in FIGS. 1, 2 and 3.

The head 13 is made of glass, ceramics, a plastic plate or the like having a groove 14 for allowing ink to pass through, and a heating head 15 (a head is shown in the figure, but not limited to this. It can be obtained by gluing and). The heating head 15 includes a protective film 16 made of silicon oxide, aluminum electrodes 17-1 and 17-.
2. A heating resistor layer 18 made of nichrome, a heat storage layer 19, and a substrate 20 having a good heat dissipation property such as alumina.

The ink 21 has a discharge orifice (fine hole) 2
2, the meniscus 23 is formed by the pressure P.

Now, 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 pressure causes the meniscus 23 to project, the ink 21 to be ejected, and the recording droplet 24 to be discharged from the orifice 22 to fly toward the cloth 25 of the present invention, which is mainly made of the mixed yarn.

FIG. 3 is a perspective 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 a multi-groove 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,
FIG. 2 is a sectional view taken along line 2-2 ′ of FIG.

FIG. 4 shows an example of an ink jet recording 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 recording area of the recording head, and in the case of this example, is held in a protruding form in the moving path of the recording head. Reference numeral 62 denotes a cap, which is disposed 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 recording head and contacts the ejection port surface to perform capping. Further, 63 is an absorber provided adjacent to the blade 61, and like the blade 61, it is held in a protruding form in the moving path of the recording head. The blade 61, the cap 62, and the absorber 63 constitute a discharge recovery section 64,
The blade 61 and the absorber 63 remove water, dust and the like adhering to the ink ejection port surface.

Reference numeral 65 denotes a recording head having a discharge energy generating means for recording by ejecting ink onto a cloth mainly composed of a mixed yarn or a mixed fiber of the present invention, which is opposed to the surface of the discharge port having the discharge port. Reference numeral 66 is a carriage for mounting the recording head 65 and moving the recording head 65. The carriage 66 slidably engages with a 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 recording head 65 can move the recording area and its adjacent area.

Reference numeral 51 denotes a cloth feeding portion for inserting a cloth mainly made of mixed yarn or mixed fiber of the present invention, and 52 denotes a paper feed roller driven by a motor (not shown). With these configurations, the cloth of the present invention is applied to the position facing the ejection opening surface of the recording head, and is discharged to the discharge section provided with discharge rollers 53 as the recording progresses.

In the above structure, when the recording head 65 returns to the home position due to the end of recording or the like, the cap 62 of the head recovery section 64 is retracted from the movement path of the recording head 65, but the blade 61 is projected in the movement path. There is. As a result, the ejection surface of the recording head 65 is wiped. When the cap 62 comes into contact with the ejection surface of the recording head 65 to perform capping, the cap 62 moves so as to project into the movement path of the recording head.

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

The above-mentioned movement of the recording head to the home position is performed not only at the end of recording and at the time of ejection recovery, but also at the home adjacent to the recording area at a predetermined interval while the recording head moves in the recording area for recording. The wiper is moved to the position, and the wiping is performed along with the move.

As described above, the printing ink applied to the ink-jet printing cloth of the present invention by the method of the present invention is:
In this state, since it is merely adhering to the cloth, it is preferable to subsequently carry out the dye fixing step on the fiber and the unfixed dye removing step. Such a fixing step and a method for removing unreacted dye may be a conventionally known method, for example, a conventionally known method such as washing after treatment by a steaming method, an HT steaming method, a thermofix method or the like. It can be performed according to. Furthermore, it is preferable to use reduction cleaning and fixing treatment together in the cleaning, if necessary.

[0068]

EXAMPLES Next, the present invention will be described more specifically with reference to Examples and Comparative Examples. In the text, "parts" and "%" are based on weight unless otherwise specified.

Example 1 (Preparation of Fabric A) Polyester staple fibers having an average thickness of 2d (water content of 0.5 at 20 ° C. and relative humidity of 65%)
%) And mercerized cellulose staple fibers having an average thickness of 1.3d (water content 9.5% at 20 ° C. and 65% relative humidity) at a weight ratio of 65:35.
A woven fabric composed of 0d blended yarn was dipped in an aqueous solution of urea having a concentration of 10% in advance, dehydrated at a squeezing ratio of 60% and then dried to obtain a fabric having a moisture content adjusted to 7%.

(Preparation of Disperse Dye Liquids I to III) β-naphthalenesulfonic acid formaldehyde condensate 20 parts Ion-exchanged water 55 parts Diethylene glycol 10 parts The above components are mixed, and this solution is newly added to the following disperse dye 15
After adding each part and performing premixing for 30 minutes at a rotation speed of 1000 rpm, dispersion treatment was performed under the following conditions.

Disperse dye C.I. I. Disperse Yellow 93 C.I. I. Disperse Red 92 C.I. I. Disperse Blue 87 Disperser Sand grinder (made by Igarashi Kikai) Grinding media Zirconium beads 1 mm diameter Grinding media filling rate 50% (volume) Rotation speed 1500 rpm Grinding time 3 hours Furthermore, Fluoropore filter FP-250 (Sumitomo Electric Co., Ltd.) To remove coarse particles to disperse the dye solution (I ~
III) was obtained.

(Production of Inks a to c) Disperse dye liquids (I to III) 40 parts Thiodiglycol 24 parts Diethylene glycol 11 parts Sodium metasilicate 0.0005 parts Iron sulfate 0.001 parts Nickel chloride 0.0003 parts Sulfuric acid Zinc 0.0003 parts Calcium chloride 0.002 parts Ion-exchanged water 25 parts All the above components are mixed, and the mixed solution is mixed with sodium hydroxide.
The mixture was adjusted to H7-9, stirred for 2 hours, and then filtered with Fluoropore Filter FP-100 (trade name, manufactured by Sumitomo Electric Industries, Ltd.) to obtain inkjet printing inks (ac).

The ink jet printing inks (a to c) thus obtained were used in the color bubble jet printer B.
Installed on JC600 (product name: Canon) and printed on the above woven fabric (A) with a print density of 100% and a solid color of 200%.
A solid sample having a color mixture of 3 cm × 3 cm was printed and fixed by steaming at 180 ° C. for 8 minutes.
Then, this was washed with water and reduction washed, and the bleeding property, the density and the dyeing rate of the dyed product were evaluated. As a result, Table 1
As shown in (3), the bleeding property and the dyeing rate were good, and a dark color was obtained even at the print density of 100%. Further, the printed product had good leveling property, good ink fixability at the time of printing, and good carrying surface.

Comparative Example 1 (Preparation of Fabric B) The same operation as in Example 1 was carried out except that mercerized cellulose fiber having a water content of 8.5% was used. That is, a polyester staple fiber having an average thickness of 2d (water content at 20 ° C. and relative humidity 65% is 0.5
%) And mercerized cellulose staple fibers having an average thickness of 1.3d (water content 8.5% at 20 ° C., relative humidity 65%) were mixed-spun at a weight ratio of 65:35 to give an average thickness of 4
A woven fabric composed of 0d blended yarn was immersed in an aqueous solution of urea having a concentration of 10% in advance, dehydrated at a squeezing ratio of 60%, and then dried to adjust the moisture content of the cloth to 7%.

Using the ink of Example 1, the above woven fabric (B) was printed in the same manner. Then 180
A steam heat treatment was performed at 8 ° C. for 8 minutes. Then, this was washed with water and reduction washed, and the bleeding property, the density and the dyeing rate of the dyed product were evaluated. As a result, as shown in Table 1, Example 1
The bleeding property and the dyeing rate were poorer than those of. Further, as compared with Example 1, the level dyeing property and the ink fixing property were deteriorated.

Comparative Example 2 (Preparation of Fabric C) The same operation as in Example 1 was carried out except that cellulose fibers having a moisture content of 7.0% were used instead of the mercerized cellulose fibers. That is, polyester staple fibers having an average thickness of 2 d (moisture content of 0.5% at 20 ° C. and relative humidity of 65%) and cellulose staple fibers having an average thickness of 1.3 d (moisture content at 20 ° C. and 65% relative humidity). (0%) was mixed and spun at a weight ratio of 65:35, and a woven fabric made of a mixed yarn having an average thickness of 40d was dipped in an aqueous solution of urea having a concentration of 10% in advance, dehydrated at a squeezing ratio of 60%, and then dried to obtain a moisture content. A fabric adjusted to 7% was obtained.

Using the ink of Example 1, the above fabric (C) was printed in the same manner. Then 180
A steam heat treatment was performed at 8 ° C. for 8 minutes. Then, this was washed with water and reduction washed, and the bleeding property, the density and the dyeing rate of the dyed product were evaluated. As a result, as shown in Table 1, Example 1
The bleeding property and dyeing rate are poorer than that of the above, and the print density is 1
No dark color was obtained at the 00% part. Furthermore, as compared with Example 1, the level dyeing property and the ink fixability were poor, and the transportability was poor.

Example 2 (Preparation of Cloth D) Polyester filament fiber having an average thickness of 3d (moisture content at 20 ° C., relative humidity 65%, 0.
5%) and a regenerated cellulose filament fiber having an average thickness of 1 d (moisture content of 12.0% at 20 ° C. and a humidity of 65%) are mixed at a weight ratio of 70:30 to form a woven fabric having an average thickness of 30 d. The cloth was previously dipped in an aqueous solution of sodium alginate having a concentration of 2%, dehydrated at a squeezing ratio of 60%, and then dried to obtain a cloth having a water content adjusted to 15%.

Using the ink of Example 1, the above fabric (D) was printed in the same manner as in Example 1. Then, steam heat treatment was performed at 180 ° C. for 8 minutes. After that, this was washed with water and reduction washed, and evaluated for the bleeding property, the density and the dyeing rate of the dyed product. As a result, as shown in Table 1, the bleeding property and the dyeing rate are good, and the printing density is 100%.
A dark color was obtained even in parts. Further, the printed product had a good leveling property, a good ink fixing property at the time of printing, and a good carrying surface.

Comparative Example 3 (Preparation of Fabric E) The same operation as in Example 2 was carried out except that the regenerated cellulose filament fiber having a water content of 8.0% was used. That is, a polyester filament fiber having an average thickness of 3d (moisture content of 0.5% at 20 ° C and 65% relative humidity) and a regenerated cellulose filament fiber having an average thickness of 1d (moisture content of 8.0 at 20 ° C and 65% relative humidity).
%) In a weight ratio of 70:30, a woven fabric made of mixed yarn having an average thickness of 30d is previously dipped in an aqueous solution of sodium alginate having a concentration of 2%, dehydrated at a squeezing ratio of 60%, and then dried.
A fabric having a moisture content adjusted to 15% was obtained.

Using the ink of Example 1, the above fabric (E) was printed in the same manner as in Example 1. Then, steam heat treatment was performed at 180 ° C. for 8 minutes. Then, this was washed with water and reduction washed, and the bleeding property, the density and the dyeing rate of the dyed product were evaluated. As a result, as shown in Table 1, the bleeding property and the dyeing rate were poor as compared with Example 2, and no dark color was obtained at the print density of 100%. further,
As compared with Example 2, the level dyeability and the ink fixability were poor, and the transportability was poor.

Example 3 (Preparation of Cloth F) Polyester staple fiber having an average thickness of 5d (moisture content 0.4 at 20 ° C., relative humidity 65%)
%) And regenerated cellulose staple fibers having an average thickness of 3d (water content at 20 ° C., relative humidity 65% 11.0%)
A woven fabric made of a mixed yarn having an average thickness of 90d in which 85:15 was spun at a weight ratio of 85:15 was preliminarily dipped in an aqueous solution of carboxymethyl cellulose having a concentration of 1% and urea of 15%, and a drawing ratio of 60%.
Then, the cloth was dehydrated and dried to obtain a fabric having a moisture content adjusted to 10%.

Using the ink of Example 1, the above fabric (F) was printed in the same manner as in Example 1. Then, fixing was carried out by thermosol treatment at 200 ° C. for 40 seconds. Then, this was washed with water and reduction washed, and the bleeding property, the density and the dyeing rate of the dyed product were evaluated. As a result, as shown in Table 1, the bleeding property and the dyeing rate were good, and a dark color was obtained even at the print density of 100%. further,
The printed product had good leveling properties, good ink fixability during printing, and good transport surface.

Example 4 (Preparation of Fabric G) Nylon filament fiber having an average thickness of 4d (water content of 4.5 at 20 ° C. and relative humidity of 65% is 4.5).
%) And a regenerated cellulose filament fiber having an average thickness of 2 d (water content at 20 ° C., relative humidity 65% 12.0%)
A woven fabric made of a mixed yarn having an average thickness of 50d in which a weight ratio of 95: 5 was mixed is pre-soaked in an aqueous solution of 2% sodium alginate, 10% urea and 1% sodium hydrogencarbonate, and the squeezing ratio is 60%. After dehydration and drying, a fabric having a moisture content adjusted to 20% was obtained.

(Production of Ink d) Acid Dye (CI Acid Yellow 35) 3 parts Direct Dye (CI Direct Yellow 86) 2 parts Thiodiglycol 24 parts Diethylene glycol 11 parts Sodium metasilicate 0.0005 parts Iron sulfate 0.001 part Nickel chloride 0.0003 part Zinc sulphate 0.0003 part Calcium chloride 0.002 part Ion-exchanged water 60 parts All the above components are mixed and the mixed solution is mixed with sodium hydroxide.
The mixture was adjusted to H8, stirred for 2 hours, and then filtered with a fluorobore filter FP-100 (trade name, manufactured by Sumitomo Electric Co., Ltd.) to obtain an inkjet printing ink (d).

(Production of Ink e) Acid Dye (CI Acid Red 266) 7 parts Reactive Dye (CI Reactive Red 24) 1 part Thioglycol 15 parts Diethylene glycol 10 parts Tetraethylene glycol dimethyl ether 5 parts Sodium metasilicate 0.0005 parts Iron sulphate 0.001 parts Nickel chloride 0.0003 parts Zinc sulphate 0.0003 parts Calcium chloride 0.002 parts Ion-exchanged water 62 parts Mixture of all the above components is mixed with sodium hydroxide.
The mixture was adjusted to H8, stirred for 2 hours, and then filtered using Fluoropore Filter FP-100 (trade name, manufactured by Sumitomo Electric Industries, Ltd.) to obtain an inkjet printing ink (e).

(Production of Ink f) Acid Dye (CI Acid Blue 85) 9 parts Thiodiglycol 20 parts Diethylene glycol 5 parts Sodium metasilicate 0.0005 parts Iron sulfate 0.001 parts Nickel chloride 0.0003 parts Zinc sulfate 0.0003 parts Calcium chloride 0.002 parts Ion-exchanged water 66 parts The pH of a mixed solution obtained by mixing all the above components with sodium hydroxide.
After adjusting to 8, the mixture was stirred for 2 hours, and then filtered with Fluoropore Filter FP-100 (trade name, manufactured by Sumitomo Electric Co., Ltd.) to obtain an inkjet printing ink (f).

The ink jet printing inks (d to f) thus obtained were used in the color bubble jet printer B.
It is mounted on JC600 (product name: Canon) and printed on the above fabric (G) with a print density of 100% and 200% of a single color and 2
A solid sample having a color mixture of 3 cm × 3 cm was printed, and fixed by steaming at 102 ° C. for 30 minutes. Then, this was washed with water, and the bleeding property, the density and the dyeing rate of the dyed product were evaluated. As a result, as shown in Table 1, the bleeding property and the dyeing rate are good, and the printing density is 100.
A dark color was obtained even in% part. Further, the printed product had good leveling property, good ink fixability at the time of printing, and good carrying surface.

Comparative Example 4 (Production of Cloth H) The same operation as in Example 4 was carried out except that regenerated cellulose filament fibers having a moisture content of 7.0% were used in place of the regenerated cellulose filament fibers. That is, a nylon filament fiber having an average thickness of 4 d (water content of 4.5% at 20 ° C. and a relative humidity of 65%) and an average thickness reproduction 2
A regenerated cellulose filament fiber (d) (moisture content at 20 ° C., relative humidity 65%, 8.0%) was mixed in a weight ratio of 95: 5 to prepare a woven fabric made of mixed yarn having an average thickness of 50 d, and sodium alginate was previously prepared. The cloth was dipped in an aqueous solution of 2%, urea 10% and sodium hydrogen carbonate 1%, dehydrated at a squeezing ratio of 60% and dried to adjust the moisture content of the fabric to 20%.

Using the ink of Example 4, the above fabric (H) was printed in the same manner as in Example 1. Then, steam heat treatment was performed at 102 ° C. for 30 minutes. afterwards,
This was washed with water and evaluated for bleeding property, density and dyeing rate of the dyed product. As a result, as shown in Table 1, Example 4
The bleeding property and dyeing rate are poorer than that of the above, and the print density is 1
No dark color was obtained at the 00% part. Further, as compared with Example 4, the level dyeing property and the ink fixability were poor, and the transportability was poor.

Example 5 (Production of Fabric I) Nylon staple fiber having an average thickness of 6d (water content at 20 ° C., relative humidity 65% 4.5%)
And mercerized cellulose staple fibers having an average thickness of 1.5d (water content at 20 ° C, relative humidity 65% 1
0.0%) was mixed and spun at a weight ratio of 55:45 to obtain an average thickness of
A woven fabric composed of 0d blended yarn was preliminarily prepared with 0.5% carboxymethylcellulose, 5% NaCl and 1% sodium carbonate.
% Aqueous solution, dehydrated at a squeezing ratio of 60% and dried to adjust the moisture content of the fabric to 30%.

The ink of Example 4 was used to print on the above fabric (I) in the same manner as in Example 1. Then, steam heat treatment was performed at 102 ° C. for 30 minutes. afterwards,
This was washed with water and evaluated for bleeding property, density and dyeing rate of the dyed product. As a result, as shown in Table 1, the bleeding property and the dyeing rate were good, and a dark color was obtained even at the print density of 100%. Further, the printed product had good leveling property, good ink fixability at the time of printing, and good carrying surface.

Comparative Example 5 (Production of Fabric J) The same operation as in Example 5 was carried out except that acetate staple fibers were used instead of the mercerized cellulose staple fibers. That is, nylon staple fibers having an average thickness of 6 d (water content of 4.5% at 20 ° C., relative humidity of 65%) and acetate staple fibers having an average thickness of 1.5 d (water content of 20 ° C., relative humidity of 65% 6. 5%) was mixed and spun at a weight ratio of 55:45, and a woven fabric made of a mixed yarn having an average thickness of 70d was previously dipped in an aqueous solution of 0.5% carboxymethyl cellulose, 5% NaCl and 1% sodium carbonate, and the drawing ratio was 60%. The water content of the fabric was adjusted to 30% by dehydration and drying.

Using the ink of Example 4, the above fabric (J) was printed in the same manner as in Example 1. Then, steam heat treatment was performed at 102 ° C. for 30 minutes. afterwards,
This was washed with water and evaluated for bleeding property, density and dyeing rate of the dyed product. As a result, as shown in Table 1, Example 5
The bleeding property and dyeing rate are poorer than that of the above, and the print density is 1
No dark color was obtained at the 00% part. Further, as compared with Example 5, the level dyeing property and the ink fixability were poor, and the transportability was poor.

Example 6 (Preparation of Cloth K) Polyester filament fiber having an average thickness of 2d (moisture content at 20 ° C., relative humidity 65%, 0.
5%) and regenerated cellulose filament fibers having an average thickness of 1.3d (water content at 20 ° C., relative humidity 65% 18.
0%) was mixed at a weight ratio of 65:35 and an average thickness of 40d.
The woven fabric made of the mixed fiber of No. 1 was immersed in an aqueous solution of urea having a concentration of 10% in advance, dehydrated at a squeezing ratio of 60%, and then dried to adjust the moisture content of the fabric to 7%.

The following operations were performed in the same manner as in Example 1. The results were as good as in Example 1.

[0097]

[Table 1] * 1 Irregular irregularities in the straight part of the edge were observed with the naked eye and judged according to the following criteria.

◯: No turbulence Δ: Slight turbulence X: A lot of turbulence * 2 K / S values of the solid 100% solid portion before and after washing were measured in the washing step after heat treatment. Then, it was judged according to the following criteria.

◯: The difference in K / S value is less than 2 for all colors.

(Good dyeing rate) Δ: K / S value difference of 2 or more in 1 or more ways.

(Dyeing ratio is inferior for some colors.) X: The difference in K / S value is 2 or more for all colors.

(Dyeing ratio is inferior for all colors.) K / S = (1-R) ² / 2R R: reflectance at maximum absorption wavelength * 3 Monochromatic and 2 colors at 100% and 200% printing density The K / S value after color development of the mixed color part was measured to be 100% and 20
The relative shade of 0% was used to determine the shade of 100%.

◯: K / S value of 200% in all colors is 1
1.5 times or less of 00% part (dark color can be obtained even in 100% part) Δ: K / S value of 200% part is 1.5 times or less of 100% part (100% part or more) However, dark color can be obtained in part) ×: K / S value of 200% part is 1.5 times or more of 100% part in all colors (dark color cannot be obtained in 100% part)

[0104]

As described above, according to the textile printing fabric of the present invention, the ink is not bleed, is clear, and has a good leveling property.
Simultaneously solve the problems of dyeing technology to obtain high density dyeing products, cost problems of good dyeing ratio of ink, operability such as ink fixability and transportability in the device. It will be possible.

[Brief description of drawings]

FIG. 1 is a partial vertical cross-sectional view showing an example of a head section of an inkjet recording apparatus.

FIG. 2 is a sectional view taken along line 2-2 ′ of the head portion of the inkjet recording apparatus shown in FIG.

FIG. 3 is a partial perspective view of a multi-headed head shown in FIG.

FIG. 4 is a perspective view showing an example of an inkjet recording apparatus.

[Explanation of symbols]

 61 Wiping Member 62 Cap 63 Ink Absorber 64 Ejection Recovery Section 65 Recording Head 66 Carriage

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location D03D 15/00 D // D06M 15/00 (72) Inventor Fumi Takade 3 Shimomaruko, Ota-ku, Tokyo Chome 30-2 Canon Inc. (72) Inventor Mariko Suzuki 3-30-2 Shimomaruko Ota-ku, Tokyo Canon Inc. (72) Inventor Masahiro Haruta 3-30-2 Shimomaruko Ota-ku, Tokyo No. Canon Inc.

Claims (14)

[Claims] 1. A fabric for inkjet printing, which is woven and woven mainly with a mixed yarn of hydrophilic fibers and hydrophobic fibers dyed with a water-based ink containing a dye, wherein the hydrophilic fibers have a temperature of 20 ° C. and a relative temperature of 65%. A fabric for inkjet printing, which has a moisture content of 9% by weight or more in an atmosphere. 2. A textile for inkjet printing, which is woven and woven mainly with a mixed fiber of hydrophilic fiber and hydrophobic fiber dyed with an aqueous ink containing a dye, wherein the hydrophilic fiber is 20 ° C. and the relative humidity is 65%. The moisture content in the atmosphere is 9% by weight or more, and a fabric for inkjet printing. 3. The cloth for inkjet printing according to claim 1, wherein the mixing ratio of the hydrophobic fiber and the hydrophilic fiber is 20: 1 to 1: 1 by weight. 4. The cloth for inkjet printing according to claim 1, wherein the hydrophobic fiber is a fiber having an ester bond or a peptide bond. 5. The ink-jet printing cloth according to claim 1, wherein the hydrophilic fiber is regenerated cellulose. 6. The ink-jet printing cloth according to claim 1, wherein the hydrophilic fiber is mercerized cellulose. 7. The moisture content of the ink-jet printing cloth is 5
The fabric for inkjet printing according to claim 1 or 2, having a weight of ˜105%. 8. The dry weight of the fabric is 0.01 to 20.
The ink-jet printing cloth according to claim 1 or 2, which contains at least one substance selected from the group of water-soluble metal salts, water-soluble polymers, urea, thiourea and surfactants in a weight percentage. 9. An ink-jet printing method for applying a printing ink to a cloth, wherein the cloth is made according to any one of claims 1 to 8.
The inkjet textile printing method according to claim 1, wherein after the ink is applied to the textile, a dyeing treatment is performed, and then a washing treatment is performed at least. 10. The inkjet printing method according to claim 9, wherein the inkjet printing method is an inkjet printing method in which thermal energy is used to fly ink droplets. 11. A printed article printed by the inkjet printing method according to claim 9. 12. A processed product obtained by further processing the printed material according to claim 11. 13. The processed product is obtained by cutting the printed material into a desired size and subjecting the cut pieces to a step of obtaining a final processed product.
Processed product described in 2. 14. The processed product according to claim 13, wherein the step for obtaining the final processed product is sewing.